WO2015104131A1 - Procédé pour faire fonctionner un véhicule hybride hydraulique - Google Patents

Procédé pour faire fonctionner un véhicule hybride hydraulique Download PDF

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Publication number
WO2015104131A1
WO2015104131A1 PCT/EP2014/077412 EP2014077412W WO2015104131A1 WO 2015104131 A1 WO2015104131 A1 WO 2015104131A1 EP 2014077412 W EP2014077412 W EP 2014077412W WO 2015104131 A1 WO2015104131 A1 WO 2015104131A1
Authority
WO
WIPO (PCT)
Prior art keywords
hydraulic
combustion engine
internal combustion
hybrid vehicle
reference variable
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/EP2014/077412
Other languages
German (de)
English (en)
Inventor
Timo Steinbach
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to CN201480072791.7A priority Critical patent/CN106103229A/zh
Publication of WO2015104131A1 publication Critical patent/WO2015104131A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18072—Coasting
    • 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
    • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
    • 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
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/101—Infinitely variable gearings
    • B60W10/103—Infinitely variable gearings of fluid type
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/12—Controlling the power contribution of each of the prime movers to meet required power demand using control strategies taking into account route information
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B60W30/18127—Regenerative braking
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/18009—Propelling the vehicle related to particular drive situations
    • B60W30/18109—Braking
    • B60W30/18136—Engine braking
    • 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
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • 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
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/12—Brake pedal position
    • 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
    • B60W2552/00—Input parameters relating to infrastructure
    • B60W2552/15—Road slope, i.e. the inclination of a road segment in the longitudinal direction
    • 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 invention relates to a method for operating a
  • Hydraulic hybrid vehicle comprising as primary drive an internal combustion engine and as a secondary drive at least two hydrostats, of which at least one converts in a recuperation operation braking energy into hydraulic energy, which is stored in a hydraulic pressure accumulator.
  • Hybrid drive for a motor vehicle in which a hydraulically operated energy converter and a combustible gas-powered energy converter interact.
  • the object of the invention is the performance of a
  • Hydraulic hybrid vehicle comprising as primary drive an internal combustion engine and as a secondary drive at least two hydrostats, of which at least one converts in a recuperation operation braking energy into hydraulic energy, which is stored in a hydraulic pressure accumulator, in particular during long downhills, to improve.
  • the object is in a method for operating a
  • Hydraulic hybrid vehicle comprising as primary drive an internal combustion engine and as a secondary drive at least two hydrostats, of which at least one in a recuperation operation braking energy in hydraulic Energy is converted, which is stored in a hydraulic pressure accumulator, solved in that when driving uphill to slow down the
  • Hydraulic hybrid vehicle used towing power of the internal combustion engine in response to an inclination of the hydraulic hybrid vehicle is specified. Hydraulic accumulators in hydraulic hybrid vehicles usually have only a relatively small energy storage capacity. This low
  • Hydraulic hybrid vehicle specified This provides the advantage that when a longer downhill of the hydraulic hybrid vehicle, the towing power of the engine can be used in a similar manner as in a vehicle with a manual transmission.
  • Engine provided power is transmitted hydraulically to at least one driven wheel.
  • This requires at least two hydrostats, one of which works as a pump and one as a motor.
  • the towing power of the internal combustion engine can be adjusted continuously.
  • the method according to the invention is used, for example, in hydraulic power split drive trains or in serial hydrostatic drive trains.
  • a target engine speed is determined in dependence on the inclination of the hydraulic hybrid vehicle.
  • Combustion engine target speed makes it possible in a simple manner to present optimal brake assistance by the internal combustion engine. As a result, a service brake of the hydraulic hybrid vehicle can be significantly relieved.
  • a further preferred exemplary embodiment of the method is characterized in that a current vehicle speed is taken into account when determining a reference variable for the internal combustion engine.
  • a current vehicle speed is taken into account when determining a reference variable for the internal combustion engine.
  • a further preferred exemplary embodiment of the method is characterized in that a current brake pedal pressure is taken into account when determining a reference variable or the reference variable for the internal combustion engine. This provides the advantage that a driver's request can be taken into account in a simple manner.
  • a further preferred exemplary embodiment of the method is characterized in that a current brake pedal travel is taken into account in the determination of a or the reference variable for the internal combustion engine. As a result, the consideration of a driver's request can be further improved.
  • a further preferred embodiment of the method is characterized in that the internal combustion engine after an interruption of the Rekuperations worriess, in particular because an energy storage capacity of a
  • Hydraulic accumulator is exhausted, is used in a towed operation to relieve a service brake of the hydraulic hybrid vehicle. This can significantly extend the service life of the service brake.
  • the invention further relates to a computer program product with a
  • a computer program comprising software means for performing a method as previously described when the computer program is run on a computer.
  • the computer is, for example, a control unit that is integrated in a motor vehicle.
  • the control unit will too referred to as electrical control unit or electronic control unit.
  • the invention further relates to a control device with such a computer program product.
  • the control unit is preferably in a
  • the motor vehicle installed.
  • the motor vehicle is in particular a hydraulic hybrid vehicle with a previously described
  • the invention further relates to a hybrid hydraulic vehicle having an internal combustion engine as a primary drive and at least two hydrostatic drives as a secondary drive, and to a previously described control device.
  • a hydrostatic drive 1 is shown simplified in the form of a hydraulic circuit diagram.
  • the hydrostatic travel drive 1 can be used, for example, in a hydraulic hybrid powertrain, which comprises a hydraulic drive in addition to an internal combustion engine drive.
  • the internal combustion engine drive is designed, for example, as an internal combustion engine 4 and is also referred to as an internal combustion engine.
  • the hydraulic drive comprises, for example, a hydrostatic drive 5, which is drivingly connected to the internal combustion engine 4.
  • the hydraulic drive comprises at least two hydrostats, as will be explained below.
  • Hydrostat 5 includes a hydraulic pump, which is also referred to as a hydraulic pump shortened.
  • the hydrostat 5 is connected on the input side to a low-pressure region 6.
  • the hydrostat 5 is connected to a high-pressure region 7.
  • the low-pressure region 6 and the high-pressure region 7 are part of a
  • Fluidsystems 8 which in operation with a hydraulic medium as well
  • Hydraulic system is called.
  • the hydraulic medium is, for example, hydraulic oil, which is also abbreviated as oil.
  • Hydraulic system 8 includes unspecified hydraulic lines and a valve block. 9
  • the hydrostatic travel drive 1 further comprises a total of four driven wheels 11 to 14.
  • Each of the driven wheels 11 to 14 is associated with a hydrostatic 21 to 24, which is connected to the respective hub of the driven wheel 11 to 14. Between the hydrostats 21 to 24 and the driven wheel 11 to 14 may be connected in each case a transmission.
  • the hydrostats 21 to 24 can advantageously be operated both as a hydraulic pump and as a hydraulic motor.
  • the hydrostats 21 to 24 are also referred to as hydraulic machines and can be designed, for example, as hydraulic axial piston machines.
  • the low-pressure region 6 comprises a low-pressure accumulator 30 with a gas volume or a gas side 31 and an oil side
  • the oil side 32 of the low-pressure accumulator 30 is connected to the inlet of the hydrostatic 5 in connection.
  • Low-pressure accumulator 30 represents a hydraulic medium reservoir, from which the hydraulic system 8 is supplied with hydraulic medium.
  • the high-pressure area 7 comprises a high-pressure accumulator 40 with a
  • the oil side 42 of the high-pressure accumulator 40 is connected to the outlet of the hydrostatic 5 in connection.
  • the oil side 42 of the high pressure accumulator 40 is further in the high pressure region 7 with the Hydrostaten 21 to 24 in conjunction.
  • the oil side 32 of the low pressure accumulator 30 is in the low pressure region 6 with the Hydrostaten 21 to 24 in conjunction.
  • a towing capacity of the internal combustion engine 4 is dependent on the inclination of the Hydraulic hybrid vehicle specified.
  • Towing power of the engine 4 as in a conventional vehicle with a manual transmission, can be used to the
  • Hydraulic hybrid vehicle will more or less towing capacity of the
  • Hydraulic hybrid vehicle is detected with a suitable inclination sensor.
  • the tilt sensor is in control with a controller in the
  • An associated engine target speed is determined according to an aspect of the invention as a function of the current vehicle inclination.
  • the further input quantity is, for example, an actual vehicle speed, a current one
  • the current vehicle speed is recorded and stored in the control unit.
  • the current storage state of charge is detected, for example, with a suitable pressure sensor or a suitable displacement sensor and also stored in the control unit.
  • the current brake pedal pressure or brake pedal travel is also detected with suitable sensors and stored in the control unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un véhicule hybride hydraulique, lequel comprend comme groupe propulseur principal un moteur à combustion interne (4) et comme groupe propulseur secondaire au moins deux hydrostats (21-24), dont au moins un, dans un mode de récupération, convertit l'énergie de freinage en énergie hydraulique qui est stockée dans un accumulateur de pression hydraulique (40). Pour améliorer le comportement opérationnel d'un véhicule hybride hydraulique, lors d'un déplacement en descente, une puissance de remorquage du moteur à combustion interne (4) utilisée pour le freinage du véhicule hybride hydraulique est prédéfinie en fonction d'une inclinaison du véhicule hybride hydraulique.
PCT/EP2014/077412 2014-01-08 2014-12-11 Procédé pour faire fonctionner un véhicule hybride hydraulique Ceased WO2015104131A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201480072791.7A CN106103229A (zh) 2014-01-08 2014-12-11 用于运行液压混合动力车辆的方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014200075.0A DE102014200075A1 (de) 2014-01-08 2014-01-08 Verfahren zum Betreiben eines Hydraulikhybridfahrzeugs
DE102014200075.0 2014-01-08

Publications (1)

Publication Number Publication Date
WO2015104131A1 true WO2015104131A1 (fr) 2015-07-16

Family

ID=52302182

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/077412 Ceased WO2015104131A1 (fr) 2014-01-08 2014-12-11 Procédé pour faire fonctionner un véhicule hybride hydraulique

Country Status (3)

Country Link
CN (1) CN106103229A (fr)
DE (1) DE102014200075A1 (fr)
WO (1) WO2015104131A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110816659A (zh) * 2019-11-21 2020-02-21 山东交通学院 独立驱动与独立转向机器人二次调节液压移动平台
DE102020206197A1 (de) * 2020-05-18 2021-11-18 Robert Bosch Gesellschaft mit beschränkter Haftung Hydrostatischer Antrieb

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355241A (en) * 1999-10-14 2001-04-18 Rover Group A vehicle hill descent control arrangement
US20070124037A1 (en) * 2004-12-01 2007-05-31 Moran Brian D Method of controlling engine stop-start operation for heavy-duty hybrid-electric and hybrid-hydraulic vehicles
US20090127011A1 (en) * 2007-11-21 2009-05-21 Yisheng Zhang Control method for optimizing the operation of a hybrid drive system
DE102011002967A1 (de) 2011-01-21 2012-07-26 Robert Bosch Gmbh Hybridantrieb für ein Kraftfahrzeug
US20130066493A1 (en) * 2011-09-13 2013-03-14 Ford Global Technologies, Llc Method and system for vehicle speed control
WO2013121541A1 (fr) * 2012-02-15 2013-08-22 トヨタ自動車株式会社 Dispositif de commande pour véhicule hybride

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200981484Y (zh) * 2006-08-17 2007-11-28 上海交大神舟汽车设计开发有限公司 一种液压混合动力轿车
CN203110908U (zh) * 2012-12-27 2013-08-07 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 油液混合动力系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2355241A (en) * 1999-10-14 2001-04-18 Rover Group A vehicle hill descent control arrangement
US20070124037A1 (en) * 2004-12-01 2007-05-31 Moran Brian D Method of controlling engine stop-start operation for heavy-duty hybrid-electric and hybrid-hydraulic vehicles
US20090127011A1 (en) * 2007-11-21 2009-05-21 Yisheng Zhang Control method for optimizing the operation of a hybrid drive system
DE102011002967A1 (de) 2011-01-21 2012-07-26 Robert Bosch Gmbh Hybridantrieb für ein Kraftfahrzeug
US20130066493A1 (en) * 2011-09-13 2013-03-14 Ford Global Technologies, Llc Method and system for vehicle speed control
WO2013121541A1 (fr) * 2012-02-15 2013-08-22 トヨタ自動車株式会社 Dispositif de commande pour véhicule hybride
DE112012005898T5 (de) * 2012-02-15 2014-11-13 Toyota Jidosha Kabushiki Kaisha Steuerungsvorrichtung eines Hybridfahrzeugs

Also Published As

Publication number Publication date
CN106103229A (zh) 2016-11-09
DE102014200075A1 (de) 2015-07-09

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