EP2651689A2 - Procédé et dispositif pour déterminer une réserve de puissance d'une propulsion électrique - Google Patents

Procédé et dispositif pour déterminer une réserve de puissance d'une propulsion électrique

Info

Publication number
EP2651689A2
EP2651689A2 EP11773457.4A EP11773457A EP2651689A2 EP 2651689 A2 EP2651689 A2 EP 2651689A2 EP 11773457 A EP11773457 A EP 11773457A EP 2651689 A2 EP2651689 A2 EP 2651689A2
Authority
EP
European Patent Office
Prior art keywords
power
limit
torque
electric drive
power reserve
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.)
Withdrawn
Application number
EP11773457.4A
Other languages
German (de)
English (en)
Inventor
Karl-Ernst Weiss
Fanny Kobiela
Frank Beruscha
Arnd Engeln
Clemens Guenther
Claus Marberger
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
Publication of EP2651689A2 publication Critical patent/EP2651689A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • 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
    • B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
    • B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
    • B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • 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
    • B60W20/15—Control strategies specially adapted for achieving a particular effect
    • B60W20/19—Control strategies specially adapted for achieving a particular effect for achieving enhanced acceleration
    • 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
    • B60W30/184—Preventing damage resulting from overload or excessive wear of the driveline
    • B60W30/1843—Overheating of driveline components
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D7/00—Indicating measured values
    • G01D7/005—Indication of measured value by colour change
    • 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
    • B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
    • B60K2360/16—Type of output information
    • B60K2360/172—Driving mode indication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/44—Control modes by parameter estimation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2260/00—Operating Modes
    • B60L2260/40—Control modes
    • B60L2260/50—Control modes by future state prediction
    • B60L2260/56—Temperature prediction, e.g. for pre-cooling
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/146—Display 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/08—Electric propulsion units
    • B60W2510/083—Torque
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/0097—Predicting future conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2207/00—Indexing scheme relating to details of indicating measuring values
    • G01D2207/30—Displays providing further information, in addition to measured values, e.g. status
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the present invention relates to a method for determining a power reserve of an electric drive, in particular for use in a drive train of a motor vehicle.
  • the present invention relates to a device for determining a
  • Power reserve of an electric drive in particular for use in a drive train of a motor vehicle.
  • the present invention relates to a motor vehicle drive train with an electric drive for providing drive power and a device of the type described above.
  • Vehicle speed is limited to 60 km / h.
  • the disadvantage here is that measures are taken only when a certain engine temperature is reached and thus the use of the vehicle is severely limited by the speed limit. It is therefore the object of the present invention to provide a method and an apparatus for predicting a component-related power limitation in electric drives.
  • the present invention provides a method for determining a power reserve of an electric drive, in particular for use in a drive train of a motor vehicle, comprising the steps of: determining a power limit of an electric drive that forms a limit of the convertible power of the electric drive, detecting a requested , supplied or acted upon torque of the electric drive, determining a power reserve, the one beyond the requested, provided or acted upon torque
  • a device for determining a power reserve of an electric drive in particular for use in a drive train of a motor vehicle, with at least one control unit that with
  • Display means connected and adapted to perform the method of the type described above.
  • the electric drive can be operated both as a generator and as a motor.
  • delivered torque is understood as meaning a delivered torque and an applied torque is understood to mean a torque applied to the electric drive in generator operation.
  • a requested torque is understood to mean a currently requested torque or, in the broadest sense, also a torque required in the future.
  • the user of the electric drive and in particular the driver of a vehicle with such an electric drive can be displayed at any time, which amount of power from the previously and currently implemented power is still feasible until the power limit of
  • the user or driver can assess at any time whether performance beyond the current performance is feasible and can be retrieved if necessary. In other words, the user or driver is shown whether or when a down-regulation of the performance or a restriction of the achievable power is to be expected. As a result, in particular the vehicle behavior becomes predictable, so that the safety of the occupants is generally increased.
  • the determination of the power limit takes place on the basis of a load limit, in particular a thermal load limit, of at least one component of the electric drive.
  • a load limit in particular a thermal load limit
  • the determination the load limit more precise.
  • the load limit is determined on the basis of a model of the electrical component. This makes the determination of the load limit more precise.
  • the model for determining the load limit is selected on the basis of the current performance reserve from a plurality of models.
  • the model used can be adapted to the current conditions, whereby the load limit can be determined even more precisely.
  • the power limit be determined based on one of the components that will reach the load limit earliest in time. As a result, the load limit can be determined more precisely and safely. Furthermore, it is preferred if the determination of the power reserve is carried out regularly or repeatedly in discrete steps and wherein a distance of the steps is reduced with decreasing power reserve. As a result, the computational effort for determining the power reserve can be adapted to the requirements, with the
  • Provision of the currently requested torque is sufficient. As a result, the user or the driver can immediately adjust to it, if requested
  • Torque is not available. Furthermore, it is preferable if the duration for which the requested torque can be provided in relation to the power reserve is determined. In particular, it is preferable if the duration for which the requested torque can be provided is displayed. As a result, additional details can be provided to the user or driver, so that he can adapt his behavior to the available ones
  • the requested torque is reduced when the load limit is reached.
  • damage to the electric drive can be avoided by overloading.
  • a torque going beyond a continuous power limit is possible only by means of a predefined input by the driver and wherein the driver is informed via the display means, for example, that the requested torque exceeds the continuous power limit. This can ensure that the driver consciously retrieves the extra power, thereby allowing improved control of the available power.
  • Continuous power limit is a limit of the permanently and permanently realizable power, which is smaller than the power limit.
  • a requested torque is not provided, provided that the power limit of at least one electrical component is reached or will be reached after a predefined period of time has elapsed. As a result, damage to the components of the electric drive can be avoided since the performance limits of the components are not reached.
  • Continuous power limit is determined on the basis of route information of a planned route and the power reserve based on a
  • Torque is determined, which is needed for the planned route. On the basis of the thus predetermined required torque, the
  • the driver is given a feedback via the display means, provided that no beyond the continuous power limit performance or no beyond the continuous power limit torque can be retrieved. This allows the driver to adjust to the unavailable power or the unavailable torque, whereby the safety of the vehicle is increased.
  • a power limit of an electric drive in regenerative mode it is preferable to determine a power limit of an electric drive in regenerative mode and to report back to the driver, insofar as an electric drive of a vehicle can allow a regenerative torque which can permanently exceed the power limit of at least one electrical component.
  • feedback can be made available to the driver which makes it possible to adapt the braking (insofar as the current traffic situation permits this adaptation), that a power restriction during the regenerative torque is counteracted early, thus avoiding the intervention of another braking system which does not recover energy can be.
  • the driver is permanently provided only the power that does not exceed the power limit of all electrical components.
  • the driver also receives in this embodiment, the possibility to request additional power for a limited time. This requirement can be defined via defined input actions, eg. B. on an accelerator pedal or another defined operating device. When the additional service is called up, the driver is informed to what extent this will be available in the immediate future.
  • the driver can be confirmed in a display unit that an additional power request at a time is not possible.
  • Route is taken into account so that expected future requirements from a known or expected road to an available power (eg due to gradients and expected speeds) are taken into account in determining a permanently available power limit.
  • the driver can thereby receive information about a display unit, in what way he needed a future
  • the driver may also request an adaptation of the vehicle behavior by also determining the permanently available power limit on the basis of future requirements (which may possibly exceed the technical continuous power limit for a short time, ie the continuous power limit has previously been reduced accordingly).
  • Fig. 1 shows in schematic form a motor vehicle with a drive train, which has an electric drive and a control unit for controlling the electric drive;
  • Fig. 2 shows in schematic form a flow chart of a method for determining a power reserve of an electric drive
  • FIGS. 3a to d show by way of example four different states of a display for displaying different power reserves.
  • a motor vehicle is shown schematically and generally designated 10.
  • the motor vehicle 10 has a drive train 12, which in the present case to
  • Drive train 12 is used to drive driven wheels 16L, 16R of the
  • the electric machine 14 provides torque t to an output shaft and rotates at an adjustable speed.
  • the powertrain 12 may be configured to drive the vehicle 10 solely by means of the electric machine 14 (electric vehicles).
  • the electric machine 14 may be part of a hybrid drive train 12, wherein the drive train 12 is a further unspecified in Fig. 1 drive motor as a
  • Internal combustion engine or the like may include. Further, the powertrain 12 in this case may include a transmission and the like.
  • the electric machine 14 is controlled by means of power electronics 18, which supplies the electric machine three-phase with electrical energy in the present case. It is also generally conceivable that the electric machine 14 is designed as a DC machine or as an AC machine with a phase.
  • Power electronics 18 is connected to a power supply 20 such as a power supply.
  • a power supply 20 such as a power supply.
  • an accumulator 20 of the vehicle 10 which serves to supply the electrical machine 14 with electrical energy and / or to store electrical energy generated by the electric machine 14 in the generator mode.
  • Power electronics 18 are controlled by one or more control devices 22 directly or indirectly.
  • the control unit or the control devices 22 are also connected to a control device 24 which controls further components of the drive train 12.
  • the or the control units 22 are connected to an input device 26, which is formed in the present case as an accelerator pedal of the motor vehicle 10.
  • the input device 26 may also be formed in another form.
  • the controller (s) 22 are further connected to display means 28 for presenting signals or information to a driver of the vehicle 10.
  • the controller (s) 22 are directly or indirectly connected to the electric machine 14, the power electronics 18, and the power supply 20 to provide measurement values about the current condition, such as those shown in FIG.
  • Calculation results on the display device 28 to the driver of the vehicle 10 represent.
  • the controller or controllers 22 are further connected to the
  • Input device or the accelerator pedal 26 to an input signal in the form of a
  • Receive power request According to the input signal, control or the controllers 22, the electric machine 14 and the power electronics 18 to set the torque t and the rotational speed on the output shaft.
  • the electric machine 14 is controlled by the control device or devices 22 such that components of the electric machine 14 and / or the
  • Power electronics 18 are not overloaded and in particular no overheating of components of the electric machine 14 or the power electronics 18 is to be expected.
  • the control unit or devices 22 may temporarily control the electric machine 14 via a so-called nominal operation in order to temporarily or temporarily provide an increased output of the electric machine 14 in the form of the torque t or the rotational speed on the output shaft or a torque in regenerative operation to convert electrical energy.
  • a so-called nominal operation in order to temporarily or temporarily provide an increased output of the electric machine 14 in the form of the torque t or the rotational speed on the output shaft or a torque in regenerative operation to convert electrical energy.
  • the amount of continuous load of the electric machine 14 or the power electronics 18 is an increased
  • a maximum permanent power of the electric machine 14 forms a continuous power limit that can be exceeded for a short time. If the electric machine 14 or the power electronics 18 has reached a limit of the load capacity, no additional power can be provided and the or the control units 22 down regulate beyond a t required by the input device 26 torque t to the electric machine 14 or the power electronics 18 not permanently damage. If the power limit is reached, is in recuperation or in
  • the vehicle 10 is switched to an alternative or
  • control unit 22 determines a power reserve, which is available in addition to the currently provided drive power or converted power until the load-related power limit of the electric Machine 14 or the power electronics 18 is achieved.
  • Power reserve is displayed by the controller or controllers 22 via the display means 28 to the driver.
  • the driver is always informed, which additionally convertible power in the form of the torque t is available and can adjust his driving behavior to it. If the driver requests additional torque t beyond the load limit or will go out in the immediate future, or if no power reserve is available, the driver is warned via the display means 28 before the controller (s) 22 downshift or request the requested power downshift the power delivered by the electric machine 14.
  • FIG. 2 schematically shows a flow diagram of a method for determining a power reserve of an electric drive 14.
  • the method is indicated generally at 30 in FIG.
  • the method 30 is initiated at 32 with a
  • Determining the power limit of the electric drive is based on models 34 of the individual electrical components, by means of which the load capacity of the components is calculated with the corresponding torque or corresponding drive power by the or the control units 22. From the models 34, a model is selected whose associated component first reaches the load limit, or under the prevailing conditions, first.
  • the controller (s) 22 determines at 36 a power reserve for continuous operation without additional power
  • Torque request by the driver on the basis of the determined power limit and the continuously supplied torque t or the corresponding drive power.
  • the power reserve is displayed to the driver by means of the display means 28 at 38. If the driver requests an additional torque t or an additional drive power, as shown at 40, the
  • Power reserve based on the models 34, with the models 34 used being selected based on the currently available power reserve.
  • the power reserve is also determined at 42 on the basis of the previous power reserve and the additionally requested torque.
  • Power reserve is greater than zero, it is determined at 50 whether the power reserve for a predetermined period, taking into account the additionally requested Torque or the additionally requested drive power is greater than zero or will be. In other words, it is checked at 50 whether the additionally requested torque t can be provided for the predefined period in terms of the power reserve. If the additionally requested torque t for the predefined period can not be made available, the driver is given a corresponding signal via the display means 28 at 52. Unless the
  • Power reserve is large enough that the additionally requested torque t or the additionally requested drive power for the predefined period can be provided, this is indicated at 54 by means of the display means 28 to the driver and the electric machine 14 controlled by the or the control device 22 accordingly ,
  • the display device 28 essentially has three display sections 56, 58, 60. Through the display section 56, the power reserve is displayed continuously.
  • Display section 56 is formed here by way of example as an analog pointer display and continuously displays the power reserve.
  • the display section 58 indicates whether a power exceeding the normal continuous power is requested by the driver. In a particular embodiment, this additional power can only be defined over
  • the display section 58 is here embodied by way of example as a luminous element and can, for example, display a green, yellow or red color signal depending on the situation.
  • the display device 28 also has the display section 60, which is formed, for example, as a light symbol and, depending on the situation, for example, is displayed in yellow or red.
  • the display section 60 illustrates to the driver that no additional power is available and that the requested torque is being withdrawn immediately or shortly, and the driver is to take his foot off the gas.
  • Fig. 3a a display mode of the display device 28 is shown in the event that the driver does not request beyond the continuous power in the form of torque t.
  • the display section 56 indicates the currently available power reserve.
  • the display section 58 and the display section 60 are deactivated.
  • Fig. 3b is a display of the display device 28 is shown in the event that the driver over the continuous power output in the form of torque t request and the power reserve for a predetermined minimum period can be retrieved.
  • the display section 56 indicates the available power reserve.
  • the display section 58 informs the driver that a power exceeding the continuous power is requested. In this case, the display section 58 preferably glows green, since the requested torque for a given
  • Minimum duration can be retrieved.
  • a pointer 62 of the display section 56 approaches the lower limit corresponding to the decrease of the power reserve.
  • Fig. 3c a state of the display is shown in the event that the driver requests beyond the continuous power output in the form of the torque t and the power reserve for a predefined minimum duration is not available.
  • the display section 58 indicates to the driver that one of the continuous power
  • the display section 58 lights yellow because there is still power reserve, but the requested torque t can not be provided over a predefined minimum duration.
  • the pointer 62 has reached the lower limit of the display section 56 in this case.
  • the display section 60 lights up, preferably in yellow, to indicate to the driver that shortly the torque is no longer available and the torque t is downshifted.
  • a state of the display device 28 is shown in the event that the driver requests a performance beyond the continuous power in the form of torque t and the load limit of the electric drive 14 has already been reached or will probably be reached in a defined period of time. In this case, the requested service is not provided.
  • the display section 58 preferably shines in red, and the display section 60 preferably displays in red

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne un procédé pour déterminer une réserve de puissance d'une propulsion électrique (14), notamment destinée à être utilisée dans une chaîne cinématique (12) d'un véhicule à moteur (10), comprenant les étapes consistant à : déterminer une limite de puissance de la propulsion électrique (14), qui constitue une limite de la puissance convertible de la propulsion électrique (14); Détecter un couple exigé, fourni ou appliqué de la propulsion électrique (14); déterminer une réserve de puissance formant une puissance convertible au-delà du couple exigé, fourni ou appliqué dans la plage de la limite de puissance déterminée de la propulsion électrique (14); et afficher la réserve de puissance à l'aide de moyens d'affichage (28).
EP11773457.4A 2010-12-17 2011-10-20 Procédé et dispositif pour déterminer une réserve de puissance d'une propulsion électrique Withdrawn EP2651689A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010063358A DE102010063358A1 (de) 2010-12-17 2010-12-17 Verfahren und Vorrichtung zum Bestimmen einer Leistungsreserve eines elektrischen Antriebs
PCT/EP2011/068318 WO2012079810A2 (fr) 2010-12-17 2011-10-20 Procédé et dispositif pour déterminer une réserve de puissance d'une propulsion électrique

Publications (1)

Publication Number Publication Date
EP2651689A2 true EP2651689A2 (fr) 2013-10-23

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EP11773457.4A Withdrawn EP2651689A2 (fr) 2010-12-17 2011-10-20 Procédé et dispositif pour déterminer une réserve de puissance d'une propulsion électrique

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US (1) US20130338875A1 (fr)
EP (1) EP2651689A2 (fr)
JP (1) JP2013546297A (fr)
CN (1) CN103282233A (fr)
DE (1) DE102010063358A1 (fr)
WO (1) WO2012079810A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014201265A1 (de) * 2014-01-23 2015-07-23 Bayerische Motoren Werke Aktiengesellschaft Powerboost für Fahrzeuge mit Elektroantrieb
DE102015105331B4 (de) 2015-04-08 2023-02-16 Ujet S.A. Elektrischer Motorroller
DE102016222827A1 (de) * 2016-11-18 2018-05-24 Audi Ag Verfahren zum Betreiben eines Kraftfahrzeugs und Kraftfahrzeug
US10486704B2 (en) * 2017-08-08 2019-11-26 Ford Global Technologies, Llc Powertrain fault management
KR20210102406A (ko) * 2018-12-15 2021-08-19 로그 9 머터리얼즈 사이언티픽 프라이빗 리미티드 전기 자동차의 주행거리를 연장하기 위한 시스템 및 방법
LU101181B1 (de) 2019-04-12 2020-10-12 Compredict Gmbh Verfahren zur Bestimmung einer Belastungsvorhersage für ein Bauteil eines Kraftfahrzeugs
EP4121328A4 (fr) * 2020-03-20 2023-12-20 Cummins, Inc. Systèmes et procédés destinés à utiliser la puissance de pointe de manière ciblée
CN113895232B (zh) * 2021-07-29 2023-09-15 上海伊控动力系统有限公司 一种电动汽车功率受限提示方法
DE102021123050B4 (de) 2021-09-07 2023-09-07 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Verfahren zum Verbessern einer Rundenzeit eines Kraftfahrzeugs
JP2025077143A (ja) * 2023-11-06 2025-05-19 トヨタ自動車株式会社 車載用制御装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009115535A (ja) * 2007-11-05 2009-05-28 Toyota Motor Corp パワー表示装置およびパワー表示方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640452A1 (de) * 1986-11-27 1988-06-09 Messerschmitt Boelkow Blohm Triebwerksueberwachung in hubschraubern
JPH05176402A (ja) * 1991-11-19 1993-07-13 Hitachi Automot Eng Co Ltd 電気車の状態表示装置
DE4446485C2 (de) * 1994-12-23 2003-06-26 Daimler Chrysler Ag Verfahren und Vorrichtung zum Abbremsen eines Kraftfahrzeuges mit Hybridantrieb
DE19533829C1 (de) * 1995-09-13 1996-09-19 Daimler Benz Ag Vorrichtung zur Überwachung der Antriebsleistung bei Fahrzeugen mit einem Elektro- oder Hybridantrieb
JP3726876B2 (ja) * 2000-02-16 2005-12-14 三菱ふそうトラック・バス株式会社 電気自動車の警報装置
JP4576702B2 (ja) 2000-11-16 2010-11-10 トヨタ自動車株式会社 車両駆動装置
US6480106B1 (en) * 2000-12-11 2002-11-12 Ford Global Technologies, Inc. Rate of consumption gauge with variable rate of consumption limits
JP2004260907A (ja) * 2003-02-25 2004-09-16 Yanmar Co Ltd ハイブリッドシステム
JP4307455B2 (ja) * 2006-02-21 2009-08-05 株式会社豊田中央研究所 ハイブリッド車両の制御装置
JP4946100B2 (ja) * 2006-03-07 2012-06-06 トヨタ自動車株式会社 モータ駆動制御装置およびそれを搭載する電動車両ならびにモータ駆動制御方法
US7800331B2 (en) * 2007-11-27 2010-09-21 Gm Global Technology Operations, Inc. Method and system for operating an electric motor coupled to multiple power supplies
JP2010173361A (ja) * 2009-01-27 2010-08-12 Toyota Motor Corp ハイブリッド自動車
US8612074B2 (en) * 2010-05-07 2013-12-17 GM Global Technology Operations LLC Regenerative braking control in vehicles
JP5535789B2 (ja) * 2010-06-23 2014-07-02 矢崎総業株式会社 ハイブリッド自動車用表示装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009115535A (ja) * 2007-11-05 2009-05-28 Toyota Motor Corp パワー表示装置およびパワー表示方法

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WO2012079810A3 (fr) 2013-05-10
WO2012079810A2 (fr) 2012-06-21
DE102010063358A1 (de) 2012-06-21
US20130338875A1 (en) 2013-12-19
CN103282233A (zh) 2013-09-04
JP2013546297A (ja) 2013-12-26

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