WO2007138353A2 - Système de freinage régénérateur - Google Patents

Système de freinage régénérateur Download PDF

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Publication number
WO2007138353A2
WO2007138353A2 PCT/GB2007/050297 GB2007050297W WO2007138353A2 WO 2007138353 A2 WO2007138353 A2 WO 2007138353A2 GB 2007050297 W GB2007050297 W GB 2007050297W WO 2007138353 A2 WO2007138353 A2 WO 2007138353A2
Authority
WO
WIPO (PCT)
Prior art keywords
flywheel
clutch
transmission system
prime mover
power transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB2007/050297
Other languages
English (en)
Other versions
WO2007138353A3 (fr
WO2007138353A8 (fr
Inventor
Martin Smith
Jean-Pierre Pirault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KESTREL POWERTRAINS Ltd
Original Assignee
KESTREL POWERTRAINS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KESTREL POWERTRAINS Ltd filed Critical KESTREL POWERTRAINS Ltd
Publication of WO2007138353A2 publication Critical patent/WO2007138353A2/fr
Publication of WO2007138353A3 publication Critical patent/WO2007138353A3/fr
Publication of WO2007138353A8 publication Critical patent/WO2007138353A8/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/30—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by chargeable mechanical accumulators, e.g. flywheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
    • B60K6/10—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel
    • B60K6/105—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel the accumulator being a flywheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/543—Transmission for changing ratio the transmission being a continuously variable transmission
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

Definitions

  • the present invention relates to a regenerative braking system for vehicles and the use of flywheels for energy storage.
  • the energy efficiency of vehicles that operate on duty cycles involving frequent acceleration and deceleration can be improved by capturing and storing vehicle kinetic energy that would otherwise be wasted in the brakes.
  • the energy can be reused to assist subsequent accelerations or other positive power demands in place of power input from the engine or other prime mover (a prime mover being a power producing device such as an engine or an electric motor).
  • Flywheels are frequently used to absorb kinetic energy by increasing the rotational speed of the flywheel, and to release this stored energy for power modes by reducing the speed of the flywheel.
  • epicyclic gear systems can be used to control the flow of energy to and from the flywheel.
  • the invention described below provides improved means of using an epicyclic gear train in conjunction with a flywheel and directing the power supply between the flywheel and the wheels or tracks of the vehicle.
  • Patent number US 4,519,485 discloses a vehicle driveline which includes a continuously variable transmission (CVT), an engine for driving the transmission and a flywheel for driving the transmission which is itself driven by the transmission to brake the vehicle thereby storing vehicle kinetic energy and then driving the transmission when the engine is not driving the transmission.
  • the flywheel is mounted remote from the CVT, not coaxial with it or the engine, and connected to the CVT via spur or bevel gears and clutches.
  • NL-C-1023686 discloses a system in which an epicyclic gear set receives input torque from an engine or from a flywheel, the output being fed into a CVT and an output shaft.
  • Patent application number US4471668 discloses the drive system of a vehicle in which a flywheel is connected, via clutches, either to the engine or an element of the epicyclic gear set. The output from the epicyclic gear set is connected to a pair of hydrostatic units giving a continuously variable gear ratio between the engine or flywheel input and the output to the driven shaft.
  • the mechanical layouts disclosed are relatively complex, a principle characteristic being that there are outputs from the epicyclic gear set going both to the continuously variable transmission system (shown in the form of hydrostatic units) and directly to the propeller shaft.
  • Patent application number US5603671 discloses the drive system of a vehicle in which a flywheel is connected to one element of a first epicyclic gear set and a prime mover shaft is connected to the same element of the first epicyclic gear set. This system is also relatively complex and is characterised in that the output from first epicyclic gear set is selectively connected either to the propeller shaft or to a second epicyclic gear set.
  • Patent application number WO2004/000595 discloses the drive system of a vehicle in which a motor is connected to an element of an epicyclic gear set and a flywheel is connected to another element of the epicyclic gear set via a clutch.
  • the output from the epicyclic gear set is connected, via a clutch, directly to the propeller shaft. Moving away from rest must be accomplished by slipping that clutch, inevitably creating significant energy loss.
  • a further characteristic of this system is that drive by flywheel only is not possible.
  • an epicyclic gear train is arranged to receive the individual outputs of the flywheel and the motor.
  • the system is a closed three-shaft system with no IVT.
  • excess power available in the output must be directed to the flywheel or indeed back to prime mover.
  • all power flows occur via the epicylic, which must be capable of transmitting the entire torque output by flywheel and/or engine and must also be capable of withstanding the accommodating increased loads to which it is subjected during a re-alignment of energy flow.
  • the epicyclic requires robust components to withstand such loads - inevitably the epicyclic unit will be bulkier and heavier.
  • the present invention provides a simplified layout, allowing for engine and flywheel drive capability and flywheel only drive capability and having a single output from the epicyclic gear set to a transmission which is of the infinitely variable type.
  • An Infinitely Variable Transmission is defined as a transmission in which the output shaft can be at rest (i.e. zero rotational speed) with all the necessary clutches engaged for power transmission to or from the prime mover while the input shaft is rotating at any speed appropriate to the prime mover.
  • Transmission ratio defined as input speed divided by output speed, is then infinite. Apart from an infinite drive ratio capability, the IVT enables a reverse ratio capability without a separate gear.
  • a mechanical IVT is one in which the transmission ratio is varied by changes to the kinematic geometry of the load path between the torque input and output; the mechanical IVT uses neither fluid pressure nor electrical power as its principal means of ratio change. However, fluid pressure or electrical power may be used in the control system of the mechanical IVT.
  • a power transmission system comprising at least one flywheel, a prime mover shaft, and an epicyclic gear set having three elements, wherein the at least one flywheel and the prime mover shaft, are respectively connectable to two of the elements of the epicyclic gear set via at least one clutch one of the said two elements is connectable to the input of an infinitely variable transmission, via at least one clutch, the at least one flywheel, the prime mover shaft and the infinitely variable transmission are coaxial.
  • a method of transmitting power in a transmission system comprising at least one flywheel, a prime mover shaft, an epicyclic gear set having three elements and a combined electrical motor/generator/storage means, the at least one flywheel and the prime mover shaft being respectively connectable to two of the elements, by means of at least one clutch, one of the said two elements and the prime mover being connectable by means of at least one clutch to the input shaft of an infinitely variable transmission, the at least one flywheel, the prime mover shaft and the infinitely variable transmission being coaxial, the method step comprising closing the at least one clutch to connect the prime mover to the transmission
  • This invention differs from prior art in that none of the elements of the epicyclic gear set in the invention is connected to the output side of the IVT.
  • the torques applied to the epicyclic elements are substantially smaller than the epicyclics in the prior art, where at least some of the output of the epicyclic directly feeds into the output of the vehicle.
  • the epicylic must be capable of transmitting the entire torque output by flywheel and/or engine and must also be capable of withstanding the accommodating increased loads to which it is subjected during a re-alignment of energy flow.
  • the epicylic is connectable only to the input of the IVT ie none of the output of the epicyclic set connects to the output of the vehicle, meaning that the torque loads on the epicyclic, which flow into/from the IVT are correspondingly lower.
  • the flywheel is arranged to be coaxial with the engine and IVT.
  • the infinitely variable transmission may be of the mechanical type. Power may be transmitted by the prime mover shaft, is routed through the infinitely variable transmission.
  • the system advantageously comprises 2 flywheels and the flywheels may rotate in opposite directions to each other.
  • the sun gear of an epicyclic gear is rigidly attached to a first flywheel
  • At least one of the at least one flywheels may be advantageously made of at least one composite material, at least one pure material or a combination of both.
  • the at least one of the at least one flywheels may also be made of at least one metal.
  • the flywheel system may incorporate at least one electrical machine, which is a motor or a dynamo or a combined motor-dynamo.
  • the prime mover shaft is connected or connectable to a prime mover, which may be any one of the following selection: an internal combustion engine, spark ignition type, compression ignition type, 2-mode combustion system type, external combustion type, compressor turbine engine type, Sterling type or any other type of engine.
  • the at least one flywheel may be connected via a clutch to the sun gear of the epicyclic gear set.
  • annulus of the epicyclic gear set is fixed, ("grounded” or “earthed”).
  • the planet gears of the epicyclic gear set may be advantageously connectable to the prime mover shaft and selectively connected to the transmission.
  • the planet carrier is connected via at least one clutch to the prime mover.
  • the clutches may be selected from a list comprising the wet plate type, the one-way type or any other type of clutch.
  • the planet carrier may be advantageously connectable via at least 2 clutches to the transmission and the clutch may be the wet plate type, one-way type or any other type of clutch.
  • the prime mover shaft may be connectable to the transmission via at least one clutch.
  • the at least one clutch may be at least one dry pressure plate clutch.
  • the system may also comprise at least one auxiliary means driven from the IVT transmission input shaft, said auxiliary means being selected from a list comprising at least one of each of the following auxiliary systems: an air compressor pump, an air vacuum pump, an air conditioning compressor, an electrical generator, a coolant pump, a hydraulic pump or any other auxiliary means.
  • At least one auxiliary means may advantageously be mounted on the IVT transmission, said auxiliary means being selected from a list comprising at least one of the each of the following auxiliary systems: an air compressor pump, an air vacuum pump, an air conditioning compressor, an electrical generator, a coolant pump, a hydraulic pump or any other auxiliary means
  • the system may comprise auxiliaries driven by pulleys engaging with a common belt which is driven by a pulley on a rotating input shaft of the IVT.
  • the auxiliaries may be driven by pulleys engaging with a common belt which is driven by a pulley on the output shaft of the power transmission system.
  • the prime mover shaft is advantageously connectable via a one-way clutch to the input shaft of the transmission.
  • the flywheel system is connectable via a flywheel disconnect clutch to a sun gear.
  • the epicyclic gear set may comprise an epicyclic sun gear connected to the epicyclic planet carrier member via the epicyclic planet gear.
  • the planet gear of the epicyclic may be advantageously connectable to the sun gear, the planetary gear carrier and the annulus gear and is connectable via a one-way clutch to the transmission shaft.
  • the transmission shaft may be connectable to the planet carrier via a flywheel charging clutch and the flywheel disconnect clutch to the flywheel system
  • the transmission shaft may be connectable via the flywheel charging clutch and the flywheel top-up clutch to the prime mover shaft.
  • the prime mover shaft is connectable via the flywheel top-up clutch to the planet carrier and via the flywheel disconnect clutch to the flywheel system
  • the IVT is coupled via a first pinion and second pinion to the prime mover and the IVT drives a first track or wheel set
  • the method described earlier may comprise the steps of disconnecting the prime mover from the transmission using the at least one clutch, connecting the at least one flywheel to the epicyclic using the at least one clutch, connecting the at least one flywheel to the transmission using the at least one clutch
  • the method may also advantageously comprise the steps of actuating the at least one clutch to disconnect the prime mover from the transmission, actuating the at least one clutch to connect the at least one flywheel to the planetary gear of the epicyclic gear set, actuating the electrical means to apply a torque to the flywheel which is transmitted to the epicyclic gear set, actuating the at least one output clutch to connect the epicylic set to the input shaft of the IVT and to drive it, if the speed of the clutch, when actuated, exceeds that of the input shaft of the IVT
  • the method may comprise the steps of: receiving an instruction to retard, actuating the at least one clutch to connect the epicyclic set to the input shaft of the IVT, when the said retarding instruction is received, actuating the at least one
  • the method may comprise the steps of actuating the electrical means to generate electrical energy derived from the rotating flywheel and to store the said electrical energy
  • the method may comprise the steps of: receiving an instruction to retard, actuating the at least one clutch to connect the epicyclic set to the input shaft of the IVT, if the said retarding instruction is received, monitoring flywheel speed and electrical energy, identifying if a maximum flywheel speed has been reached and maximum electrical energy has been reached, actuating the at least one clutch to disconnect the at least one flywheel from the epicyclic if the said maxima speed have been reached, actuating another of the at least one clutch to connect the epicyclic gear set to the prime mover shaft and to drive the prime mover shaft to achieve engine braking
  • the method may comprise the steps of: monitoring flywheel speed and identifying if a minimum speed has been reached, actuating the at least one clutch (4) to connect the at least one flywheel to the epicyclic, actuating another of the at least one clutch to connect the prime mover shaft to the epicyclic gear set
  • the method may comprise the steps of: monitoring flywheel speed, and identifying if it is above the referred engine idling speed, actuating the at least one clutch to connect the at least one flywheel to the epicyclic, actuating another of the at least one clutch to connect the prime mover shaft to the epicyclic gear set and to accelerate the engine
  • the apparatus and method herein described can be operated by a suitably programmed computer which forms part of the apparatus.
  • the invention also provides a computer program product comprising a readable storage medium for storing instructions for implementing the method herein described on the apparatus herein described Brief Description of Figures
  • Figure 1 shows a side elevation of a first embodiment of the proposed power transmission system in a first operating mode.
  • Figure 2 shows the system of Fig.1 in a second operating mode.
  • Figure 3 shows the system of Fig.1 in a third operating mode.
  • Figure 4 shows the system of Fig.1 in a fourth operating mode.
  • Figure 5 shows the system of Fig.1 in a fifth operating mode.
  • Figure 6 shows the system of Fig.1 in a sixth operating mode.
  • Figure 7 shows the system of Fig.1 in a seventh operating mode
  • Figure 8 shows the system of Fig.1 in an eighth operating mode.
  • Figure 9 shows the system with auxiliaries mounted and driven from the output shaft of the power transmission system.
  • Figure 10 shows a tracked vehicle application of the proposed invention.
  • the power transmission system comprises a prime mover (1 ), preferably an internal or external combustion engine, that is connected to at least one infinitely variable transmission (15) via an epicyclic gear set (5, 6, 7 & 8) and clutches (9, 10, 11 , 12) and via a clutch (4) to a flywheel system (2), the transmission being connected to an external load via a driveline, or propeller shaft (16).
  • a prime mover (1 preferably an internal or external combustion engine
  • the epicyclic gear set comprises the annulus gear (7), which is, preferably, fixed, ie does not rotate relative to the engine or any part in this system, planet gears (6) mounted on the planet carrier (8) and connected to the flywheel top-up clutch (9) and the flywheel charging clutch (10), and a sun gear (5) which connects via clutch (4) to the flywheel system (2).
  • the planet gears of at least one epicyclic gear set are therefore connected to the prime mover and transmission.
  • the transmission may be connected via a transmission shaft (14) to a one way clutch (1 1 ) to the flywheel charging clutch (10), and also connects via the one way clutch (12) to the prime mover via shaft (13).
  • the flywheel system may comprise at least one flywheel, and optionally an electrical machine (3), and optionally a second flywheel (not shown) which is, preferably, arranged to rotate in opposite direction to the first flywheel.
  • the transmission may be fitted with various auxiliaries that are frequently used in vehicles, such as power assisted steering pump, power assisted brake pump, air conditioning pumps, vehicle suspension load levelling pumps, air pumps and compressors, such that these auxiliaries may be driven independently of the prime mover.
  • the electrical machine may also be independent of the flywheel and attached and connected to the transmission and auxiliaries via a clutch.
  • the electrical machine may be connected to a battery pack via power electronics. The various elements of the previously described electrical system would be controlled by an electronic control unit.
  • the planet carrier may be connected via at least two clutches to the prime mover, with at least one of these clutches preferably being of the wet plate type, with at least a single one way clutch which is preferably of the sprag type.
  • the planet carrier may be connected via at least two clutches to the transmission, in which at least one clutch is preferably of the wet plate type, with at least a single one way clutch which is preferably of the sprag type.
  • the flywheel system may comprise at least one flywheel which may be made of ferrous material such as steel, fibre composite, such glass fibres, carbon fibres which may include epoxy bonding, or metal matrix composites, such as alumina reinforced aluminium, or titanium diboride reinforced steel.
  • the alumina fibres may be arranged in the form of a structured matrix, which in one case may have fibres arranged in an orthogonal pattern to each other or one in which the fibres are orthogonally woven.
  • a spur or epicyclic gear set may be used to generate the contra-rotation of the flywheels.
  • the spur gear may be rigidly fixed to a first flywheel, whilst for the epicyclic arrangement, the sun gear of an epicyclic gear set is rigidly attached to a first flywheel,
  • the prime movers may be compression ignition internal combustion engines, spark ignition internal combustion engines or mixed mode internal combustion engines, ie compression or spark ignition internal combustion engines operating either in their normal mode or in homogenous charge compression ignition mode.
  • the internal combustion engine may switch between 2 modes of combustion, i.e either compression ignition and homogenous charge compression ignition modes, or spark ignition and homogenous charge compression ignition modes. Any suitable prime mover could be used.
  • the prime mover may be an external combustion engine of a compressor turbine engine type or of a Sterling engine type.
  • the power transmission system is arranged such that the prime mover 1 drives via the drive shaft 13.
  • the one way clutch 12 transmits the torque from the engine shaft 13 to the transmission shaft 14, and then into the transmission 15. If the torque from the engine is reduced so that the speed of the engine shaft 13 falls below the speed of the transmission drive shaft 14, the one way clutch 12 will over run, ie freewheel.
  • the Flywheel (2) drives the epicyclic sun gear (5) through the flywheel disconnect clutch (4).
  • the epicyclic sun gear (5) drives the epicyclic planet carrier member (8) via the epicyclic planet gears (6).
  • the one way clutch (11 ) transmits the torque from the epicyclic planet carrier member (8) to the transmission shaft (14), and thence into the transmission (15) as in Figure 2.
  • the electric motor/generator rotating member (3) drives the epicyclic sun gear (5) through the flywheel disconnect clutch (4).
  • the epicyclic sun gear (5) drives the epicyclic planet carrier member (8) via the epicyclic planet gears (6).
  • the one way clutch When the speed of the epicyclic planet carrier member (8) exceeds that of the transmission shaft (14), the one way clutch
  • the one way clutch (11 ) will over run freely.
  • the vehicle will decelerate.
  • the operator input is received by a control system (not shown) for controlling the operation of the clutches.
  • the transmission applies a retarding torque to the vehicle propeller shaft, (16), the reaction of which generates torque on the transmission shaft (14).
  • the flywheel charging clutch (10) closed the torque is transmitted via the Epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4) to the energy storage flywheel (2).
  • the transmission applies a retarding torque (as descrbed above in relation to operator input) to the vehicle propeller shaft (16), the reaction of which generates torque on the transmission shaft (14).
  • the flywheel charging clutch (10) closed, the torque is transmitted via the epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4) to the electric motor rotating member (3).
  • the electric motor rotating member (3) converts the torque applied to it into electrical power via a control system (not shown) to an electrical energy storage battery (not shown) or electrical heating elements (not shown).
  • the transmission applies a retarding torque (as descrbed above) to the vehicle propeller shaft (16), the reaction of which generates torque on the transmission shaft (14). If the energy storage flywheel (2) is at its maximum speed, and the electric motor rotating member (3) cannot transmit any more power to its electrical energy storage battery or heating elements, then the flywheel charging clutch (10), and the flywheel top-up clutch (9) are closed to transmit torque to the engine shaft (13).
  • the flywheel disconnect clutch (4) is open so that the energy storage flywheel (2) is not affected by the speed of the engine shaft (13).
  • engine braking can be achieved by increasing the speed of the prime mover engine (1 ) until its rotating and pumping losses provide the required torque on the engine shaft (13).
  • the prime mover (1 ) is connected to the energy storage flywheel (2) via the flywheel top-up clutch (9), the epicyclic planet carrier member (8), the epicyclic planet gears (6), the epicyclic sun gear (5) and the flywheel disconnect clutch (4).
  • the torque to accelerate the energy storage flywheel (2) is provided by the prime mover (1 ) via its own control system (not shown).
  • the auxiliaries required to maintain, for example, the vehicle steering (i.e. power steering pumps), brake systems, air conditioning and any compressed air operated equipment within the vehicle, for example pneumatically operated doors, "kneeling" suspension and braking systems, and pumps for circulating coolant for the vehicle heating system, and alternators are mounted on either the power transmission casing or the IVT and driven by a shaft of the power transmission system, or a shaft in the IVT that remains rotating at idle, driven by the flywheel energy, or by the prime mover if there is inadequate flywheel energy.
  • these auxiliaries may be driven from pulleys by a common belt that engages with a main driving pulley on the output shaft (14) from the flywheel power transmission system, with the auxiliaries mounted on the casing of the power transmission system.
  • Fig.9 shows, as an example layout, a prime mover (1 ) which connects rigidly with a power transmission system (17) which is connected to an IVT (15) which has an output shaft (16).
  • a drive unit (18) which connects the output shaft of the power transmission casing to various auxiliaries such as an air compressor (25), a vacuum pump (19), an air conditioning pump (20), a power steering pump (21 ) and a generator (not shown), using either gears, or chain sprockets connected by a chain, or pulleys connected by a belt.
  • auxiliaries which may either be mounted rigidly via connections (24) to the IVT (15) or to the power transmission system (17), would be connected by shafts, such as (22) which are usually part of each auxiliary, to the gears, sprockets or pulleys in the drive unit.
  • auxiliary drives shown in Figure 9 may be driven by a drive unit using gears meshed with the IVT input shaft (14) (not shown)
  • the prime mover (1 ) is coupled to a power transmission system (17).
  • the prime mover and power transmission system may be arranged on the same side of the input shaft (14) as in Fig 1 , or as shown in Figure 10, on opposite sides, dependent on the required packaging configuration.
  • the input shaft (14) is thus driven and controlled in the same way as shown in Figure 1.
  • the input shaft (14) to the IVT(s) may be connected to a bevel gear (31 ) driving simultaneously two other bevel gears (32 & 33) each of which then drives a separate IVT (27 & 28 respectively)
  • the IVTs (27 & 28) each drive a tracked or multiple wheel set (29 & 30) with independent controls, so that torque can be applied in either direction to either track or multiple wheel set independent of the speeds thereof.
  • steering can be achieved accurately with continuous control.
  • torque can be transferred from one track to the other without using brakes to control the tracks.
  • the previously mentioned electrical machine may be a generator or motor, or both, and may be either of an AC type, in one embodiment an induction AC type, or of a DC type, which may be in one embodiment a permanent magnet type.
  • the permanent magnets may be of the neodynium-iron-boron type.
  • the rotor flux path may either be arranged to be of an axial flow or radial flow type
  • the previously described power modes of the power transmission system include a power transmission mode which is achieved by a one way clutch connecting the flywheel to the transmission via at least one pressure plate clutch, another power transmission mode is achieved by closing at least two pressure plate clutches attached to the planetary carrier of the epicyclic gear set, another mode being achieved by closing the pressure plate clutches attached to the planetary carrier of the epicyclic gear set and the flywheel/motor and then applying electric motor torque, another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set and opening the flywheel disconnect clutch, another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and using the power supplied to the motor/generator to generate electrical current to charge the vehicle battery, and another power transmission mode being achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the prime mover to accelerate the flywheel system.
  • Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the flywheel to start/accelerate the prime mover, whilst another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set and opening the flywheel disconnect clutch.
  • a further power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and using the power supplied to the motor/generator to generate electrical current to charge the vehicle batteries.
  • Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the prime mover to accelerate the flywheel system.
  • Another power transmission mode is achieved by closing a second pressure plate clutch attached to the planetary carrier of the epicyclic gear set, closing the flywheel disconnect clutch and transmitting power from the flywheel to start/accelerate the prime-mover.
  • the flywheel disconnect clutch may optionally be operated in response to electrical signals
  • the flywheel top-up clutch may optionally be operated in response to electrical signals
  • the flywheel charging clutch may optionally be operated in response to electricalsignals.
  • the power transmission system may use dog or cone clutches.
  • the engine and power transmission system are coupled to a split drive in which each output pinion is connected to an IVT that in turn connects to a multiple wheel set or track.
  • the previously described power transmission system is used with an infinitely variable transmission such as, for example, the half or full toroidal type, one using belts and chains, hydraulics or electrical shunt arrangements.
  • These transmissions which may themselves be under electronic control, would interface, via high speed communication links and electronic control units (ECUs), with sensors and/or actuators on the various rotating elements and clutches of the power transmission system.
  • ECUs electronice control units
  • the power transmission ECUs would also interface, via communication links, with the ECU controlling the prime mover.
  • a master ECU can be used to interface with all sensors and actuators of the prime mover and power transmission system, so that there are a reduced number of ECUs.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Transmission Devices (AREA)

Abstract

Système de transmission électrique comprenant une machine motrice (1), un volant (2) et un engrenage épicyclique avec des embrayages (4, 9, 10 et 12) par lesquels la machine motrice ou le volant peut être connecté(e) de manière coaxiale à l'entrée d'une transmission infiniment variable (15). La machine motrice (1) peut être un moteur à combustion interne ou externe. Le système de volant peut comprendre au moins un volant, et éventuellement une machine électrique, et éventuellement un second volant, qui est disposé de façon à tourner dans une direction opposée au premier volant. La transmission peut être équipée des différents auxiliaires qui sont fréquemment utilisés dans les véhicules et ces auxiliaires peuvent être entraînés par un arbre de la transmission, même lorsque le véhicule est au repos, et la machine motrice arrêtée. La machine électrique peut également être indépendante du volant, fixée et reliée à la transmission et aux auxiliaires par un engrenage, et actionnée par un système de commande. La structure du volant peut être éventuellement métallique ou composite.
PCT/GB2007/050297 2006-05-25 2007-05-25 Système de freinage régénérateur Ceased WO2007138353A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0610369.1 2006-05-25
GB0610369A GB2440996A (en) 2006-05-25 2006-05-25 Power transmission system

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WO2007138353A2 true WO2007138353A2 (fr) 2007-12-06
WO2007138353A3 WO2007138353A3 (fr) 2008-01-24
WO2007138353A8 WO2007138353A8 (fr) 2008-11-06

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GB2462489A (en) * 2008-08-12 2010-02-17 Managed Technologies Ltd A flywheel kinetic energy recovery and storage apparatus
WO2010082079A1 (fr) * 2009-01-15 2010-07-22 Renault Trucks Groupe motopropulseur comportant un système optimalisé de récupération d'énergie
WO2010087705A1 (fr) * 2009-01-27 2010-08-05 Dti Group B.V. Module de volant
EP2236338A1 (fr) * 2009-03-31 2010-10-06 Honda Motor Co., Ltd. Motocyclette ou trottinette du type hybride
WO2011003648A1 (fr) * 2009-07-09 2011-01-13 Robert Bosch Gmbh Chaîne cinématique hybride
DE102009041073A1 (de) 2009-09-10 2011-03-24 Schaeffler Technologies Gmbh & Co. Kg Antriebsbaugruppe für ein Kraftfahrzeug
WO2011048133A1 (fr) 2009-10-20 2011-04-28 Ricardo Uk Limited Accumulateur bimode
WO2011120492A1 (fr) 2010-03-29 2011-10-06 Schaeffler Technologies Gmbh & Co. Kg Module d'entraînement pour véhicule automobile
ITRG20100002A1 (it) * 2010-04-28 2011-10-29 Giuseppe Fiorilla Dell'invenzione industriale dal titolo: ruota libera unidirezionale e bidirezionale.a nome di giuseppe fiorilla di nazionalità italiana con sede in vittoria via generale cascino n. 31 cap 97019 prov. ragusa
EP2492541A1 (fr) * 2011-02-24 2012-08-29 Renault S.A.S. Dispositif de réduction de roulis de groupe moto-propulseur
CN102666168A (zh) * 2009-10-20 2012-09-12 里卡多英国有限公司 转矩填充
EP2522538A1 (fr) * 2011-05-10 2012-11-14 Deere & Company Système de commande de véhicule hybride à double moteur
ITTO20120915A1 (it) * 2012-10-17 2014-04-18 Oerlikon Graziano Spa Trasmissione per veicolo a motore ibrido.
DE102012216680A1 (de) 2012-09-18 2014-06-12 Magna Powertrain Ag & Co. Kg Schwungradtrieb
WO2014121808A1 (fr) * 2013-02-11 2014-08-14 Volvo Truck Corporation Procédé pour améliorer l'aptitude au démarrage d'un véhicule
US8808096B2 (en) 2009-03-27 2014-08-19 Ricardo Uk Limited Flywheel
WO2014199064A1 (fr) * 2013-06-14 2014-12-18 Technoboost Chaîne de traction d'un véhicule hybride hydraulique, comprenant une roue-libre et un train planétaire
CN104641148A (zh) * 2012-09-17 2015-05-20 技术推进公司 带有包括卡挡系统的行星齿轮系的,用于液压混合动力车辆的动力传动系
US9050968B2 (en) 2012-12-17 2015-06-09 Caterpillar Inc. Hybrid engine assembly and method
US9141095B2 (en) 2012-08-09 2015-09-22 Caterpillar Inc. System and method for efficiently operating multiple flywheels
US9162560B2 (en) 2012-08-09 2015-10-20 Caterpillar Inc. Flywheel assembly for a powertrain
WO2015172878A1 (fr) * 2014-05-15 2015-11-19 Audi Ag Véhicule hybride
US9273755B2 (en) 2009-03-27 2016-03-01 Ricardo Uk Limited Method and apparatus for balancing a flywheel
FR3027850A1 (fr) * 2014-11-04 2016-05-06 Peugeot Citroen Automobiles Sa Procede de commande d'une chaine de traction comportant un volant d'inertie
US9391489B2 (en) 2010-11-17 2016-07-12 Ricardo Uk Limited Magnetic coupler having magnets with different magnetic strengths
US9704631B2 (en) 2009-03-27 2017-07-11 Ricardo Uk Limited Flywheel
US9718343B2 (en) 2011-04-20 2017-08-01 Ricardo Uk Limited Energy storage system having a flywheel for a vehicle transmission
US9770968B2 (en) 2009-01-27 2017-09-26 Dti Group, B.V. Flywheel module
WO2017202413A1 (fr) * 2016-05-23 2017-11-30 Schaeffler Technologies AG & Co. KG Module d'entraînement hybride à transmission intégrée dans un agencement axial
EP3450235A1 (fr) * 2017-09-04 2019-03-06 CLAAS Industrietechnik GmbH Engin agricole ainsi que système électrique pour un tel engin agricole
WO2019072474A1 (fr) * 2017-10-09 2019-04-18 Zf Friedrichshafen Ag Dispositif d'entraînement
US10591038B2 (en) 2014-06-13 2020-03-17 Perkins Engines Company Limited Variator-assisted transmission
WO2021122634A1 (fr) * 2019-12-16 2021-06-24 Mtu Friedrichshafen Gmbh Entraînement conçu pour un véhicule, véhicule aquatique équipé d'un tel entraînement, procédé pour faire fonctionner un véhicule aquatique et appareil de commande pour un tel véhicule aquatique

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GB2462489A (en) * 2008-08-12 2010-02-17 Managed Technologies Ltd A flywheel kinetic energy recovery and storage apparatus
GB2462489B (en) * 2008-08-12 2012-07-04 Managed Technologies Ltd Kinetic energy recovery and storage apparatus
WO2010082079A1 (fr) * 2009-01-15 2010-07-22 Renault Trucks Groupe motopropulseur comportant un système optimalisé de récupération d'énergie
WO2010087705A1 (fr) * 2009-01-27 2010-08-05 Dti Group B.V. Module de volant
US9770968B2 (en) 2009-01-27 2017-09-26 Dti Group, B.V. Flywheel module
CN102395482B (zh) * 2009-01-27 2016-02-10 Dti集团有限公司 飞轮模块
US9704631B2 (en) 2009-03-27 2017-07-11 Ricardo Uk Limited Flywheel
US8808096B2 (en) 2009-03-27 2014-08-19 Ricardo Uk Limited Flywheel
US9273755B2 (en) 2009-03-27 2016-03-01 Ricardo Uk Limited Method and apparatus for balancing a flywheel
EP2236338A1 (fr) * 2009-03-31 2010-10-06 Honda Motor Co., Ltd. Motocyclette ou trottinette du type hybride
WO2011003648A1 (fr) * 2009-07-09 2011-01-13 Robert Bosch Gmbh Chaîne cinématique hybride
DE102009041073A1 (de) 2009-09-10 2011-03-24 Schaeffler Technologies Gmbh & Co. Kg Antriebsbaugruppe für ein Kraftfahrzeug
CN102666168A (zh) * 2009-10-20 2012-09-12 里卡多英国有限公司 转矩填充
WO2011048133A1 (fr) 2009-10-20 2011-04-28 Ricardo Uk Limited Accumulateur bimode
DE102011014098A1 (de) 2010-03-29 2011-12-15 Schaeffler Technologies Gmbh & Co. Kg Antriebsbaugruppe für ein Kraftfahrzeug
WO2011120492A1 (fr) 2010-03-29 2011-10-06 Schaeffler Technologies Gmbh & Co. Kg Module d'entraînement pour véhicule automobile
EP2511118A1 (fr) * 2010-04-28 2012-10-17 Giuseppe Fiorilla Roues libres unidirectionnelles et bidirectionnelles appliquées à un arbre de transmission d'un véhicule à moteur.
ITRG20100002A1 (it) * 2010-04-28 2011-10-29 Giuseppe Fiorilla Dell'invenzione industriale dal titolo: ruota libera unidirezionale e bidirezionale.a nome di giuseppe fiorilla di nazionalità italiana con sede in vittoria via generale cascino n. 31 cap 97019 prov. ragusa
US9391489B2 (en) 2010-11-17 2016-07-12 Ricardo Uk Limited Magnetic coupler having magnets with different magnetic strengths
FR2972039A1 (fr) * 2011-02-24 2012-08-31 Renault Sa Dispositif de reduction de roulis de groupe moto-propulseur
EP2492541A1 (fr) * 2011-02-24 2012-08-29 Renault S.A.S. Dispositif de réduction de roulis de groupe moto-propulseur
US9718343B2 (en) 2011-04-20 2017-08-01 Ricardo Uk Limited Energy storage system having a flywheel for a vehicle transmission
US8323144B1 (en) 2011-05-10 2012-12-04 Deere & Company Dual engine hybrid vehicle drive
AU2012202619B2 (en) * 2011-05-10 2017-02-02 Deere & Company Dual engine hybrid vehicle drive
EP2522538A1 (fr) * 2011-05-10 2012-11-14 Deere & Company Système de commande de véhicule hybride à double moteur
US9141095B2 (en) 2012-08-09 2015-09-22 Caterpillar Inc. System and method for efficiently operating multiple flywheels
US9162560B2 (en) 2012-08-09 2015-10-20 Caterpillar Inc. Flywheel assembly for a powertrain
CN104641148A (zh) * 2012-09-17 2015-05-20 技术推进公司 带有包括卡挡系统的行星齿轮系的,用于液压混合动力车辆的动力传动系
DE102012216680A1 (de) 2012-09-18 2014-06-12 Magna Powertrain Ag & Co. Kg Schwungradtrieb
US9050881B2 (en) 2012-10-17 2015-06-09 Oerlikon Graziano S.P.A. Hybrid propulsion systems for vehicles and transmissions for propulsion systems
EP2722212A1 (fr) * 2012-10-17 2014-04-23 Oerlikon Graziano S.P.A. Système de propulsion hybride pour un véhicule et transmission pour un tel système de propulsion
ITTO20120915A1 (it) * 2012-10-17 2014-04-18 Oerlikon Graziano Spa Trasmissione per veicolo a motore ibrido.
US9050968B2 (en) 2012-12-17 2015-06-09 Caterpillar Inc. Hybrid engine assembly and method
WO2014121808A1 (fr) * 2013-02-11 2014-08-14 Volvo Truck Corporation Procédé pour améliorer l'aptitude au démarrage d'un véhicule
US9738282B2 (en) 2013-02-11 2017-08-22 Volvo Truck Corporation Method for improving startability of a vehicle
WO2014199064A1 (fr) * 2013-06-14 2014-12-18 Technoboost Chaîne de traction d'un véhicule hybride hydraulique, comprenant une roue-libre et un train planétaire
CN105283333A (zh) * 2013-06-14 2016-01-27 技术推进公司 液压混合动力车辆的包括自由轮和行星齿轮系的动力传动系
FR3006944A1 (fr) * 2013-06-14 2014-12-19 Technoboost Chaine de traction d'un vehicule hybride hydraulique, comprenant une roue-libre et un train planetaire
WO2015172878A1 (fr) * 2014-05-15 2015-11-19 Audi Ag Véhicule hybride
US10591038B2 (en) 2014-06-13 2020-03-17 Perkins Engines Company Limited Variator-assisted transmission
FR3027850A1 (fr) * 2014-11-04 2016-05-06 Peugeot Citroen Automobiles Sa Procede de commande d'une chaine de traction comportant un volant d'inertie
WO2017202413A1 (fr) * 2016-05-23 2017-11-30 Schaeffler Technologies AG & Co. KG Module d'entraînement hybride à transmission intégrée dans un agencement axial
EP3450235A1 (fr) * 2017-09-04 2019-03-06 CLAAS Industrietechnik GmbH Engin agricole ainsi que système électrique pour un tel engin agricole
WO2019072474A1 (fr) * 2017-10-09 2019-04-18 Zf Friedrichshafen Ag Dispositif d'entraînement
WO2021122634A1 (fr) * 2019-12-16 2021-06-24 Mtu Friedrichshafen Gmbh Entraînement conçu pour un véhicule, véhicule aquatique équipé d'un tel entraînement, procédé pour faire fonctionner un véhicule aquatique et appareil de commande pour un tel véhicule aquatique

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GB0610369D0 (en) 2006-07-05
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WO2007138353A8 (fr) 2008-11-06

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