EP4205254A1 - Device for power supply, method for supplying power to at least one electrical load, and vehicle - Google Patents
Device for power supply, method for supplying power to at least one electrical load, and vehicleInfo
- Publication number
- EP4205254A1 EP4205254A1 EP21759078.5A EP21759078A EP4205254A1 EP 4205254 A1 EP4205254 A1 EP 4205254A1 EP 21759078 A EP21759078 A EP 21759078A EP 4205254 A1 EP4205254 A1 EP 4205254A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- interface
- consumer
- vehicle
- electrical
- 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
- 238000000034 method Methods 0.000 title claims description 13
- 238000001514 detection method Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 claims description 2
- 239000007858 starting material Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- 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
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple 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
- Device for supplying energy method for supplying at least one electrical consumer and vehicle
- the present approach relates to an energy supply device for a vehicle, a method for supplying at least one electrical consumer of a vehicle and a vehicle.
- An additional battery can be planned for the redundant energy supply of a vehicle's on-board network, or in the case of an e-truck, the voltage can be generated from different cells using a DC/DC converter.
- the object of the present approach is to create an improved device, an improved method for supplying at least one electrical load, and an improved vehicle.
- a corresponding device for a vehicle has the following features: a first battery and a second battery; a fault detection device which is designed to detect a faulty state of at least one of the batteries and to provide a fault signal indicating the faulty state; and a switching device with a first battery interface, a second battery interface, a third battery interface, a fourth battery interface and a consumer interface for connecting at least one electrical consumer to the device, the first battery interface having a first pole of the first battery and the second battery interface having a second pole the first battery, the third battery interface is connected to a first pole of the second battery and the fourth battery interface is connected to a second pole of the second battery, and wherein the switching device is designed to disconnect the second battery interface from the consumer interface in a normal state, the second To connect battery interface to the third battery interface and to connect the fourth battery interface to the consumer interface, and wherein the switching device is designed to in an emergency stood to separate the second battery interface from the third battery interface and, depending on the error signal, either to connect the second battery interface to the consumer interface or
- the vehicle may be a passenger vehicle or a truck.
- the device can represent an on-board network of the vehicle or be part of such an on-board network.
- the electrical consumer can be, for example, a control device, a sensor or an electric motor of the vehicle.
- the batteries can be used to provide the electrical energy required to operate the at least one electrical load. At least one consumer can be designed to be operated both with a normal voltage and with a lower emergency voltage.
- the normal voltage can be twice as high as the emergency voltage.
- the normal state can represent a state of the device in which a battery device comprising the batteries is error-free. In the normal state, the two batteries can be connected in series and thus provide the normal voltage. Such a series connection is often found in trucks, for example.
- the emergency state may represent a state of the device in which the battery device is faulty.
- the first battery or the second battery may be faulty.
- only one of the two batteries can be used to supply the electrical load. In this way, only the lower emergency voltage can be provided.
- the switching device can include a plurality of electrical switches, for example in the form of power transistors. In the normal state, the switching device can be designed to connect electrical lines of the device in such a way that the at least one electrical consumer is supplied with electrical energy by connecting the two batteries in series. In the emergency state, on the other hand, the switching device can be designed to disconnect the series connection of the two batteries and to supply the at least one electrical consumer with electrical energy either exclusively from the first battery or exclusively from the second battery.
- the fault detection device can include a sensor for detecting the faulty state of at least one of the batteries or can be coupled to such a sensor.
- the switching device can be designed accordingly in order to assume the emergency state when the error signal indicates the faulty state. This can be regardless of which of the batteries is faulty.
- the switching device can be designed to connect the second battery interface to the consumer interface in the emergency state and to separate the fourth battery interface from the consumer interface when the error signal indicates a faulty state of the second battery. In this way, the possibly still intact first battery can advantageously continue to be used to supply energy to the at least one electrical load.
- the switching device can be designed to connect the fourth battery interface to the consumer interface in the emergency state and to separate the second battery interface from the consumer interface when the error signal indicates a faulty state of the first battery.
- the second battery which may still be intact, can advantageously continue to be used to supply energy to the at least one electrical load.
- the first battery and the second battery can be of the same type.
- the two batteries may have the same nominal voltage, for example each of the batteries may have a nominal voltage of 12V. In this way, batteries typically installed in vehicles can be used.
- the device can have a generator which is designed to adapt its charging voltage to that of a 12 V battery in the emergency state and to charge only one of the batteries which is free of defects.
- the charging voltage of the generator in emergency operation is no longer in the 24 V range and only the fault-free battery is charged. This means that the reference potential must be applied to the healthy battery.
- the degraded charging voltage of 12 V should be ensured by adjusting the excitation current, using two charge controllers or using two alternators.
- the device can have a charge controller which is designed to provide the control signal using a reference potential.
- This can be a charge controller, as is known from the automotive sector.
- the reference potential depends on the condition of the batteries.
- the switching device can have a potential connection connected to the second pole of the first battery for providing the reference potential and a generator connection for receiving the charging signal.
- two independent charge controllers or two alternators are used.
- an alternator with two pairs of poles can be used to charge the batteries in an isolated manner.
- the device can advantageously be used in a vehicle.
- a corresponding vehicle has at least one electrical consumer which is connected to the consumer interface of the device.
- the electrical load can be designed as a control device for a safety-critical electrical load.
- the control device can be designed as a control device for a brake system and/or as a control device for automated control of the vehicle and/or as a starter for the engine.
- consumers required for safe operation of the vehicle can also be reliably supplied with electrical energy in this way if a fault condition occurs in the area of the batteries.
- the vehicle may have an engine mechanically coupled to a generator of the device. This can be a motor for driving the vehicle.
- a corresponding method for supplying at least one electrical consumer of a vehicle with electrical energy comprising the following steps:
- the steps of the method can be implemented using a named switching device.
- FIG. 1 shows a schematic representation of a vehicle with a device according to an exemplary embodiment
- FIG. 2 shows a flow chart of a method for supplying at least one electrical load according to an exemplary embodiment.
- FIG. 1 shows a schematic representation of a vehicle 100 with a device 102 according to an exemplary embodiment.
- the vehicle 100 is a truck.
- Vehicle 100 has at least one electrical consumer 104, typically a plurality of electrical consumers.
- electrical consumer 104 is a control unit for a brake system of vehicle 100 or a control unit for controlling a functionality of vehicle 100.
- Such a control unit can also be a control unit for automated control of vehicle 100, for example.
- Vehicle 100 also has an engine 106 .
- motor 106 is embodied as a drive motor for moving vehicle 100 . This is, for example, an internal combustion engine.
- the vehicle has a further electrical load 108 in the form of a starter for starting the engine 106 .
- the electrical loads 104, 108 require electrical energy for their operation. This electrical energy is from the device 102 via at least one consumer interface according to this embodiment provided via a first consumer interface 110 and a second consumer interface 112 .
- the device 102 comprises a generator 114, a battery device 116, a switching device 118 and an error detection device 120.
- the switching device 118 is also referred to as a battery switch.
- the battery device 116 includes a first battery 122 and a second battery 123.
- the batteries 122, 123 are each a 12 V, 225 Ah, 1150 A battery, as is typically used in vehicles.
- the batteries 122, 123 are connected in series to supply the at least one electrical load 104, 108 with electrical energy. This is also known as the normal state. If battery device 116 is faulty, for example if one of the two batteries 122, 123 fails or there is a short circuit in the area of one of the two batteries 122, 123, only one of the two batteries 122, 123 is used to charge the at least one electrical load 104 , 108 to supply electrical energy. In this case, the supply voltage provided to the at least one electrical load 104, 108 corresponds to the battery voltage that can be provided by the remaining of the two batteries 122, 123.
- the generator 114 is mechanically coupled to the motor 106, for example a generator shaft of the generator 114 is connected to a motor shaft of the motor 106 via a V-belt. In this way, when the engine 106 is operating, kinetic energy provided by the engine 106 can be converted into electrical energy by the generator 114 . The electrical energy provided by the generator 114 can be fed into the battery device 116 so that the batteries 122, 123 can be charged. According to one embodiment, operation of the generator 114 is regulated using a charge controller 124 . The charge controller 124 is also referred to as a voltage controller. Error detection device 120 is designed to detect a faulty state of battery device 116 and to provide an error signal 126 that indicates the faulty state.
- the error detection device 120 is coupled to the battery device 116 in a suitable manner.
- fault detection device 120 is designed to detect a short circuit within battery device 116 or an output voltage of at least one of batteries 122, 123 that is below a specification as the faulty state.
- the error signal 126 is used to switch the switching device 118 between the normal state and the emergency state.
- the switching device 118 has a first battery interface 130, a second battery interface 132, a third battery interface 134, a fourth battery interface 136, the first consumer interface 110 and the second consumer interface 112.
- the first battery interface 130 is connected to a first pole of the first battery 122, the second Battery interface 132 with a second pole of the first battery 122, the third battery interface 134 with a first pole of the second battery 123 and the fourth battery interface 136 with a second pole of the second battery 123 connected.
- Switching device 118 optionally has a potential connection 138 for providing a reference potential for charge controller 124 and a generator connection 140 .
- switches of the switching device 118 are switched in such a way that the second battery interface 132 is connected to the third battery interface 134, so that the batteries 122, 123 are connected in series.
- the first battery interface 130 is connected to the first load interface 110 and the fourth battery interface 136 to the second load interface 112 .
- the switching device 118 is designed to disconnect the series connection of the batteries 122, 123.
- the switches of the switching device 118 are switched in such a way that the second battery interface 132 is separated from the third battery interface 134 . If the error signal 126 indicates a faulty state of the first battery 122, the first battery interface 130 and the second battery interface 132 and thus the first battery 122 from the consumer interfaces 110, 112 are disconnected. Instead, the switching device 118 is designed to connect the third battery interface 134 to the first load interface 110 and the fourth battery interface 136 to the second load interface 112 . In this way, a circuit can be closed via the electrical load 104 via the first load interface 110 , the first battery 122 and the second load interface 112 .
- the switching device 118 is designed to connect the first battery interface 130 to the first load interface 110 and the second battery interface 132 to the second load interface 112 . In this way, a circuit can be closed via the electrical load 104 via the first load interface 110, the second battery 123 and the second load interface 112.
- the charge controller 124 is designed to control the operation of the generator 114 using a control signal 150 .
- generator 114 is designed to generate a charging signal 152 for charging battery device 116 and to adapt a characteristic of charging signal 152 using control signal 150 .
- the charging signal 152 represents, for example, an electrical voltage or an electrical current
- charge controller 124 is designed to generate and provide control signal 150 using the reference potential provided at potential connection 138 .
- the switching device 118 is designed to connect the potential connection 138 to the second battery interface 132 and/or the fourth battery interface 136 in a fixed or switchable manner for generating the reference potential.
- the generator 114 is designed to charge both batteries 122, 123 with a nominal voltage of 24 V when they are fault-free and to switch the charging voltage to 12 V if the battery 122, 123 is faulty.
- the wiring is adapted by changing the reference potential on the one hand and connecting the charging line 140 either to the first battery interface 130 or to the third battery interface 134 on the other hand.
- Switching device 118 is optionally designed to provide a switch-off signal 154 in the emergency state for switching off at least one consumer 104, 108 that is not suitable for operation with the lower emergency voltage.
- the at least one electrical consumer 104 is connected to the consumer interfaces 110, 112 via a safety device 160, here an interposed fuse box.
- generator 114 is connected to generator connection 140 and optionally to starter 108 via an electrical line.
- the at least one electrical load 104 is connected to the first load interface 110 via an electrical line and optionally a safety device 160, here an interposed fuse box.
- two electrical lines are shown, for example for connecting two separate electrical loads 104 to the switching device 118.
- a second load connection of the second load interface 112 is via an electrical Line connected to the starter 108 and the motor 106.
- the ground connection of the generator 114 is connected to the engine 106 by way of example.
- two additional load connections of the second load interface 112 are connected to the at least one electrical load 104 via two electrical lines via the optional safety device 160 .
- vehicle 100 has a redundant vehicle electrical system due to a degraded voltage. Creating redundancies is necessary or at least useful, for example, in the course of automated or autonomous driving of vehicles of all kinds. These redundancies are to be designed in such a way that the vehicle 100 cannot get into a safety-critical or uncontrollable state. Systems such as the electric braking system EBS or ABS (anti-lock braking system), which are indicated by way of example by the at least one electrical load 104, are therefore being placed in vehicle 100 multiple times. So that this does not lead to a chained failure in the event of a single fault, the power supplies of the control units, such as the at least one electrical consumer 104, are designed to be sufficiently independent. According to the approach described, it is advantageously not necessary to plan for an additional battery or, in the case of an e-truck as vehicle 100, to generate the voltage from different cells by means of DC/DC converters.
- EBS electric braking system
- ABS anti-lock braking system
- the vehicle electrical system is powered by two 12 V batteries connected in series.
- the switching device 118 which can be regarded as a special battery switch, one of the batteries 122, 123 can be isolated from the vehicle electrical system in the event of a fault, but the vehicle electrical system can continue to be available at a degraded half voltage.
- the reference potential depends on the condition of the batteries. In the fault-free state, the reference potential is the fourth battery interface 136, as well as in the case of a faulty battery 122. In the case of a faulty battery 123, the second battery interface 132 is the reference.
- the approach described can increase the availability of the vehicle electrical system, insofar as the control devices, such as the at least one electrical consumer 104, are still able to supply sensors and actuators with this “undervoltage situation”.
- FIG. 2 shows a flow chart of a method for supplying at least one electrical load according to an exemplary embodiment. The method can be implemented, for example, in connection with the device described with reference to FIG. 1 .
- step 201 In response to or while the battery device is in a fault-free state, in step 201 the second pole of the first battery is disconnected from the load interface to the electrical load and in step 203 the second pole of the first battery is connected to the first pole of the second battery and the second pole of the second battery connected to the consumer interface.
- the second pole of the first battery is separated from the first pole of the second battery and in a step 207 the second pole of the first battery is connected to the load interface.
- the second pole of the first battery is also separated from the first pole of the second battery in step 205, but in step 207 the first pole of the second battery is connected to the consumer interface.
- steps 201, 203 can be carried out again.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Automation & Control Theory (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020122507.5A DE102020122507A1 (en) | 2020-08-28 | 2020-08-28 | ENERGY SUPPLY DEVICE, METHOD OF SUPPLYING AT LEAST ONE ELECTRICAL CONSUMER AND VEHICLE |
PCT/EP2021/072605 WO2022043098A1 (en) | 2020-08-28 | 2021-08-13 | Device for power supply, method for supplying power to at least one electrical load, and vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4205254A1 true EP4205254A1 (en) | 2023-07-05 |
Family
ID=77465988
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21759078.5A Pending EP4205254A1 (en) | 2020-08-28 | 2021-08-13 | Device for power supply, method for supplying power to at least one electrical load, and vehicle |
Country Status (5)
Country | Link |
---|---|
US (1) | US20230294622A1 (en) |
EP (1) | EP4205254A1 (en) |
CN (1) | CN115989157A (en) |
DE (1) | DE102020122507A1 (en) |
WO (1) | WO2022043098A1 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013204894A1 (en) * | 2013-03-20 | 2014-09-25 | Robert Bosch Gmbh | Motor vehicle electrical system with at least two energy stores, method for operating a motor vehicle electrical system and means for its implementation |
CA2818450C (en) * | 2013-06-17 | 2020-04-07 | Mcmaster University | Reconfigurable hybrid energy storage system for electrified vehicles |
DE102016220557A1 (en) | 2016-10-20 | 2018-04-26 | Robert Bosch Gmbh | Battery assembly, operating method for a battery assembly and vehicle |
US11228059B2 (en) | 2018-11-08 | 2022-01-18 | GM Global Technology Operations LLC | Battery with multiple sets of output terminals and adjustable capacity |
EP3664251B1 (en) * | 2018-12-07 | 2021-03-03 | Yazaki Corporation | Power supply system |
-
2020
- 2020-08-28 DE DE102020122507.5A patent/DE102020122507A1/en active Pending
-
2021
- 2021-08-13 WO PCT/EP2021/072605 patent/WO2022043098A1/en unknown
- 2021-08-13 EP EP21759078.5A patent/EP4205254A1/en active Pending
- 2021-08-13 CN CN202180052978.0A patent/CN115989157A/en active Pending
- 2021-08-13 US US18/040,925 patent/US20230294622A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN115989157A (en) | 2023-04-18 |
WO2022043098A1 (en) | 2022-03-03 |
US20230294622A1 (en) | 2023-09-21 |
DE102020122507A1 (en) | 2022-03-03 |
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