EP3642070A1 - Energy supply device for a motor vehicle - Google Patents
Energy supply device for a motor vehicleInfo
- Publication number
- EP3642070A1 EP3642070A1 EP18734164.9A EP18734164A EP3642070A1 EP 3642070 A1 EP3642070 A1 EP 3642070A1 EP 18734164 A EP18734164 A EP 18734164A EP 3642070 A1 EP3642070 A1 EP 3642070A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- energy storage
- storage device
- temperature
- voltage energy
- motor vehicle
- 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.)
- Pending
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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/13—Maintaining the SoC within a determined range
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
-
- 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
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
-
- 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
- B60L2240/52—Drive Train control parameters related to converters
- B60L2240/525—Temperature of converter or components thereof
-
- 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
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/545—Temperature
-
- 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
- B60L2260/20—Drive modes; Transition between modes
- B60L2260/22—Standstill, e.g. zero 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
- 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
-
- 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
- B60W2510/246—Temperature
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using 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
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a power supply device for a motor vehicle. Furthermore, the present invention relates to a motor vehicle, in particular a passenger car, with such a power supply device and a method for supplying a motor vehicle with energy.
- High-voltage storage - in particular high-voltage storage in lithium-ion technology with a rated voltage of greater than or equal to 60 V - can be operated within a predetermined fixed operating range.
- This operating range is usually chosen such that on the one hand a defined cold start (eg start of the internal combustion engine at -25 ° C) must be possible (lower charge state limit / minimum storage capacity) and on the other hand (up) sufficient storage capacity exists (upper state of charge limit / maximum storage capacity) to use the energy storage for a brake energy recovery.
- the fixed operating range is therefore set with a fixed lower state of charge limit and a fixed upper state of charge limit to enable any time, i. in all environmental conditions, to allow a defined cold start.
- the temperature of the energy store itself does not always correspond to the outside temperature, so that also in this case the operating range or work area is restricted, without this being absolutely necessary.
- the work area is reduced because of a cold outside temperature, although the actual temperature of the energy store would not require it.
- an object of the present invention is to improve the utilization of the operating range of an energy storage device.
- a power supply device for a motor vehicle which has a high-voltage energy storage device and a control device for controlling the charging and discharging processes of the high-voltage energy storage device.
- the high-voltage energy storage device can be any type of energy store that can be used in a motor vehicle.
- the high-voltage energy storage device may be a battery of the motor vehicle.
- the motor vehicle may be a conventional internal combustion engine vehicle, an electric vehicle or a hybrid vehicle, wherein the high-voltage energy storage device supplies an electric drive machine (electric motor or starter) with energy.
- the control device is configured to determine a temperature of the high-voltage energy storage device and to adjust a predetermined working range of the high-voltage energy storage device defined by an upper limit and a lower limit as a function of the determined temperature. sen.
- This work area or operating area is usually chosen such that on the one hand a defined cold start must be possible (lower charge state limit / minimum storage capacity) and on the other hand (up) sufficient storage capacity exists (upper state of charge limit / maximum storage capacity).
- the adaptation as a function of the temperature of the high-voltage energy storage device has the advantage that an adjustment of the working range only takes place if this is also required by the temperature of the high-voltage energy storage device.
- the vehicle is parked outside at a very low outside temperature, it can be assumed that the vehicle will cool itself. However, if the high-voltage energy storage device is charged, the high-voltage energy storage device remains warm and an adjustment of the work area is not required. If only the outside temperature were taken into account here, it would be necessary to adapt the working area without this being required by the high-voltage energy storage device itself. However, this is prevented by the proposed device.
- the respective device for example control device, can be implemented in terms of hardware and / or software technology.
- the respective device may be designed as a device or as part of a device, for example as a computer or as a microprocessor.
- the respective device may be designed as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
- the control device is configured to receive a current temperature of the high-voltage energy storage device from a temperature sensor.
- the temperature sensor can be located directly on or in the high-voltage energy storage device.
- the control device may be configured to receive the current temperature after a predefined period of time after a shutdown of the motor vehicle.
- the predefined period may be greater than or equal to 6 hours.
- the predefined period of time is a period of time which is long enough to allow cooling of the high-voltage energy storage device.
- control device is set up to determine the lower limit and / or the predefined period as a function of at least one operating parameter of the motor vehicle.
- the at least one operating parameter may be, for example, an ambient temperature and / or an engine temperature. These operating parameters will be used in addition to determining the temperature of the high voltage energy storage device, for example, to adjust the value of the lower limit or to define the time period after a measurement of the temperature is made.
- control device is adapted to adapt the work area by adjusting the lower limit and while maintaining the upper limit. This means that the working range is increased or decreased in dependence on the temperature of the high-voltage energy storage device.
- the controller may be configured to adjust the lower limit to a first value if the determined temperature is less than or equal to a predefined temperature threshold.
- the temperature threshold can be between -15 ° C and -25 ° C.
- the first value can also be referred to as the cold value.
- control means is adapted to adjust the lower limit to a second value if the determined temperature is greater than the predefined temperature threshold. Is preferred the first value higher than the second value.
- the lower limit is shifted upwards below the temperature threshold value at a temperature of the high-voltage energy storage device (eg the minimum energy content SoC min (state of charge) is shifted to 18%) and at a temperature of the high-voltage energy storage device above the temperature threshold value shifted (eg the minimum energy content SoC min is shifted to 13%).
- the working area is therefore smaller (for example 82% of the total energy range) and in the second case larger (for example 87% of the total energy range).
- a motor vehicle with a power supply device as described above is proposed.
- the motor vehicle may in particular be a passenger car.
- a method for supplying a motor vehicle with energy wherein the motor vehicle has a high-voltage energy storage device and a control device for controlling the charging and discharging processes of the high-voltage energy storage device.
- the method comprises the following steps: determining a temperature of the high-voltage energy storage device, and adjusting a predetermined working range of the high-voltage energy storage device defined by an upper limit and a lower limit as a function of the determined temperature of the high-voltage energy storage device.
- a computer program product which has a program code which is adapted to cause the execution of the method as explained above on a computer.
- a computer program product such as a computer program means, for example, as a storage medium, such as memory card, USB stick, CD-ROM, DVD, or in the form of a downloadable file provided by a server in a network or delivered. This can be done, for example, in a wireless communication network by transmitting a corresponding file with the computer program product or the computer program means.
- Fig. 1 shows a schematic block diagram of a motor vehicle with a power supply device
- FIG. 2 shows an exemplary sequence of a charging of the power supply device of FIG. 1, and FIG.
- FIG. 3 shows a schematic flow diagram of a method for supplying a motor vehicle with energy.
- the power supply device 10 has a high-voltage energy storage device 1 1 for supplying the motor vehicle 1 with energy and a control device
- the control device 12 can adjust the working range of the high-voltage energy storage device 11. For this purpose, the control device 12 first determines the current temperature of the high-voltage energy storage device 11. The temperature may be provided by a temperature sensor 13.
- the high-voltage energy storage device 1 1 is operated in a working or operating range, which is selected such that on the one hand a defined cold start (eg start of the internal combustion engine at -25 ° C) must be possible (lower charge state limit / minimum storage capacity, below Lower limit) and that on the other hand (upwards) there is sufficient storage capacity (upper charge state limit / maximum storage capacity) in order to be able to use the energy store for brake energy recovery.
- a defined cold start eg start of the internal combustion engine at -25 ° C
- there is sufficient storage capacity upper charge state limit / maximum storage capacity
- control device 12 adjusts the working range of the high-voltage energy storage device 11 based on the temperature of the high-voltage energy storage device 11. To adjust the working range, a lower limit of the working range of the high-voltage energy storage device 1 1 is moved up or down.
- FIG. 1 An exemplary process of loading and shifting the lower limit is shown in FIG.
- the dotted arrows indicate the temperature profile of the high-voltage energy storage device 1 1 when parking the vehicle 1 and the solid arrows indicate the temperature profile of the high-voltage energy storage device 1 1 when driving.
- the high-voltage energy storage device 1 1 with a lower limit of the work area at a value W operated.
- the lower limit of the working range of the high-voltage energy storage device 1 1 is set to its minimum value, for example to 13% energy content.
- the temperature of the high-voltage energy storage device 1 1 decreases. If the temperature falls below a temperature threshold value 201, the lower limit W is still used during this shutdown process, but a different lower limit K is then used for the next shutdown process. After switching off the high-voltage energy storage device 1 1 is reheated while driving.
- the lower limit K is now used. This is suitable for lower temperatures, since here the lower limit of the working range of the high-voltage energy storage device 1 1 is set to a higher value, for example to 18% energy content.
- This lower limit K is now used as long as the temperature of the high-voltage energy storage device 1 1 after shutdown is in a temperature range 202 which is below the temperature threshold value 201. Only when the temperature of the high-voltage energy storage device 1 1 no longer drops to a temperature threshold value 201, but is in a higher temperature range 203 above the Tempe- raturschwellwert, another value for the lower limit is used. If, therefore, a temperature above the temperature threshold value 201 is determined after a switch-off operation, the lower limit W is used again for future switch-off operations until the temperature of the high-voltage energy storage device 11 below the temperature threshold value 201 is again detected.
- FIG. 3 shows a method for supplying a motor vehicle 1 according to FIG. 1 with energy. The method comprises the following steps.
- a temperature of the high-voltage energy storage device 1 1 is determined.
- a predetermined working range of the high-voltage energy storage device 1 1 defined by an upper limit and a lower limit is adjusted as a function of the determined temperature of the high-voltage energy storage device 11.
- the proposed device makes it possible to optimally utilize the working range of a high-voltage energy storage device, since not an-possibly irrelevant outside temperature-but the actual temperature of the high-voltage energy storage device is used to adapt a working range of the high-voltage energy storage device.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017210430.9A DE102017210430A1 (en) | 2017-06-21 | 2017-06-21 | Energy supply device for a motor vehicle |
PCT/EP2018/066473 WO2018234405A1 (en) | 2017-06-21 | 2018-06-20 | Energy supply device for a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3642070A1 true EP3642070A1 (en) | 2020-04-29 |
Family
ID=62748967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18734164.9A Pending EP3642070A1 (en) | 2017-06-21 | 2018-06-20 | Energy supply device for a motor vehicle |
Country Status (5)
Country | Link |
---|---|
US (1) | US11214167B2 (en) |
EP (1) | EP3642070A1 (en) |
CN (1) | CN110650859B (en) |
DE (1) | DE102017210430A1 (en) |
WO (1) | WO2018234405A1 (en) |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3926518B2 (en) * | 1999-08-27 | 2007-06-06 | 本田技研工業株式会社 | Battery control device for hybrid vehicle |
JP4052080B2 (en) * | 2002-10-09 | 2008-02-27 | アイシン・エィ・ダブリュ株式会社 | Vehicle control device |
JP4929839B2 (en) * | 2006-05-22 | 2012-05-09 | トヨタ自動車株式会社 | Charge / discharge control device for power storage device |
DE102006049148A1 (en) | 2006-10-18 | 2008-04-30 | Beru Ag | Method for operating an electric heater in a motor vehicle |
JP4774430B2 (en) * | 2008-09-24 | 2011-09-14 | 本田技研工業株式会社 | Electric vehicle and power storage device control method |
DE102010001529A1 (en) * | 2010-02-03 | 2011-08-04 | SB LiMotive Company Ltd., Kyonggi | Adaptive method for determining the performance parameters of a battery |
JP5507284B2 (en) * | 2010-02-17 | 2014-05-28 | 富士重工業株式会社 | Electric vehicle control device |
JP5730501B2 (en) * | 2010-05-20 | 2015-06-10 | トヨタ自動車株式会社 | Electric vehicle and control method thereof |
JP5301520B2 (en) * | 2010-11-30 | 2013-09-25 | 本田技研工業株式会社 | Output control device for electric vehicle |
DE102010063376A1 (en) * | 2010-12-17 | 2012-06-21 | Bayerische Motoren Werke Aktiengesellschaft | Temperature control method for an electrochemical energy store in a vehicle |
US8937452B2 (en) * | 2011-02-04 | 2015-01-20 | GM Global Technology Operations LLC | Method of controlling a state-of-charge (SOC) of a vehicle battery |
DE102011004357A1 (en) * | 2011-02-18 | 2012-01-12 | Continental Automotive Gmbh | Method for operating energy store for supplying electrical power to vehicle, involves controlling lower and/or current charge state of energy store dependent of currently measured or averaged temperature on current data and/or time of day |
DE102011111594A1 (en) * | 2011-08-25 | 2013-02-28 | Audi Ag | Method for braking a motor vehicle |
DE102013224185A1 (en) * | 2013-11-27 | 2015-05-28 | Robert Bosch Gmbh | A method for adjusting at least one limit value of at least one operating variable of an electrical energy storage device of a vehicle to increase a maximum deliverable electrical power of the electrical energy storage device |
DE102014215289A1 (en) * | 2014-08-04 | 2016-02-04 | Robert Bosch Gmbh | Energy supply system for a motor vehicle with electric or hybrid drive |
JP6168029B2 (en) * | 2014-11-13 | 2017-07-26 | トヨタ自動車株式会社 | Control method for external power supply system of vehicle equipped with fuel cell and external power supply system |
DE102015001069A1 (en) * | 2015-01-29 | 2016-08-04 | Man Truck & Bus Ag | Method and device for temperature-dependent current limitation of an energy storage device for electrical energy |
FR3041914B1 (en) * | 2015-10-05 | 2018-07-13 | Renault S.A.S. | METHOD FOR DETERMINING TRACTION BATTERY UTILIZATION RANGES |
-
2017
- 2017-06-21 DE DE102017210430.9A patent/DE102017210430A1/en active Pending
-
2018
- 2018-06-20 EP EP18734164.9A patent/EP3642070A1/en active Pending
- 2018-06-20 CN CN201880025349.7A patent/CN110650859B/en active Active
- 2018-06-20 WO PCT/EP2018/066473 patent/WO2018234405A1/en unknown
-
2019
- 2019-10-14 US US16/600,627 patent/US11214167B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE102017210430A1 (en) | 2018-12-27 |
WO2018234405A1 (en) | 2018-12-27 |
CN110650859B (en) | 2023-10-20 |
CN110650859A (en) | 2020-01-03 |
US20200039380A1 (en) | 2020-02-06 |
US11214167B2 (en) | 2022-01-04 |
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