# US 2022/0044880 A1 · Super capacitor module for vehicle with high voltage power source and control method thereof, computer program, and computer readable memory

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- Number: US 2022/0044880 A1
- Document ID: US20220044880A1
- Status: Published application
- Kind: A1
- Application number: 17/506,626
- Filed: 2021-10-20
- Published: 2022-02-10
- Earliest claimed: 2019-05-08
- Assignees: Ningbo Geely Automobile Research & Development Co.
- Applicants: Ningbo Geely Automobile Research & Development Co., Ltd.
- Inventors: Alexander Engström; Eric Rudervall
- Web page: https://patentgrep.com/patent/US20220044880A1

## CPC

- B60R 16/03: for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)}
- H01G 11/66: Current collectors
- B60L 50/40: using propulsion power supplied by capacitors
- B60R 16/04: Arrangement of batteries
- H01G 11/14: Arrangements or processes for adjusting or protecting hybrid or EDL capacitors (emergency protective circuit arrangements specially adapted for capacitors, and effecting automatic switching in the event of an undesired change from normal working conditions H02H7/16; emergency protective circuit arrangements for limiting excess current or voltages without disconnection H02H9/00)
- H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64)
- H02J 1/08: Three-wire DC power distribution systems; Systems having more than three wires
- H02J 7/345: {using capacitors as storage or buffering devices}
- F02N 11/08: Circuits specially adapted for starting of engines
- H01G 11/08: Structural combinations, e.g. assembly or connection, of hybrid or EDL capacitors with other electric components, at least one hybrid or EDL capacitor being the main component
- H01G 11/10: Multiple hybrid or EDL capacitors, e.g. arrays or modules (housings, cases, encapsulations or mountings thereof H01G11/78)
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- H02J 1/082: DC supplies with two or more different DC voltage levels
- H02J 2105/33: exchanging power with road vehicles
- Y02E 60/10: Energy storage using batteries
- Y02E 60/13: Energy storage using capacitors
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H01G: CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE (selection of specified materials as dielectric H01B3/00; capacitors having potential barriers H10D1/62, H10K10/10)
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- F02N: STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A super capacitor module for a vehicle with a high voltage power source includes a super capacitor, high power control electronics for controlling and actuating charging of the super capacitor, a high-powered DC-DC converter connected to super capacitor and adapted to be connected to a low voltage power supply system, a voltage comparison circuit connected to the super capacitor and adapted to be connected to a low voltage power source, the super capacitor module being adapted to be connected to at least one electric control units (ECC) for a vehicle and/or a starter motor for a vehicle.

## Claims

### Claim 1

A method for controlling a super capacitor module for a vehicle with a high voltage power source, wherein the super capacitor module comprises: a super capacitor, high power control electronics for controlling and actuating charging of the super capacitor, a high-powered DC-DC converter connected to super capacitor and adapted to be connected to a low voltage power supply system, a voltage comparison circuit connected to the super capacitor and adapted to be connected to a low voltage power source, the super capacitor module being adapted to be connected to at least one Electric Control Units (ECU) for a vehicle and/or a starter motor for a vehicle, wherein the method comprises the steps of: detecting that a low voltage power source is attached to the super capacitor module, in response to detecting that a low voltage power source is attached to the super capacitor module, operating the high-power control electronics so as to choose charging intervals of the super capacitor so that the voltage of the super capacitor is above the nominal voltage of the low voltage power source, detecting that a low voltage power source is not attached to the super capacitor module, detecting that at least one ECU is connected to the super capacitor module, in response to not detecting that a low voltage power source is attached to the super capacitor module and detecting that an ECU is connected to the super capacitor module, operating the high-power control electronics so as to choose charging intervals of the super capacitor within allowable intervals for the at least one ECU, detecting that a starter motor is not attached to the super capacitor module, in response to not detecting that a starter motor is attached to the super capacitor module, utilizing the high-powered DC-DC circuit to convert high voltage power from the high voltage power source to low voltage and supplying the low voltage to the low voltage supply system.

### Claim 2 (depends on 1)

The method for controlling a super capacitor module according to claim 1, further comprising the step of detecting that the vehicle is in parking mode, and in response to detecting that a low voltage power source is attached to the super capacitor module and that the vehicle is in parking mode, operating the high-power control electronics so as to choose charging intervals of the super capacitor so that the voltage of the super capacitor is higher than the nominal voltage of the low power source.

### Claim 3 (depends on 1)

The method for controlling a super capacitor module according to claim 1, wherein the step of operating the high-power control electronics so as to choose charging intervals of the super capacitor within allowable intervals for the at least one ECU, includes choosing charging intervals of the super capacitor within allowable intervals for all connected ECUs.

### Claim 4 (depends on 1)

A super capacitor module for a vehicle with a high voltage power source, wherein the super capacitor module comprises: a super capacitor, high power control electronics for controlling and actuating charging of the super capacitor, a high-powered DC-DC converter connected to the super capacitor and adapted to be connected to a low voltage power supply system, a voltage comparison circuit connected to the super capacitor and adapted to be connected to a low voltage power source, the super capacitor module being adapted to be connected to at least one Electronic Control Units (ECU) for a vehicle and/or a starter motor for a vehicle, wherein the super capacitor module is adapted to perform the method steps of claim 1.

### Claim 5 (depends on 4)

The super capacitor module according to claim 4, wherein the low voltage power source is a 12V battery supplying voltage in the range of 5-18V, preferably 12-15 V.

### Claim 6 (depends on 4)

The super capacitor module according to claim 4, wherein the high voltage power source has a voltage in the range of 48-600V.

### Claim 7 (depends on 4)

The super capacitor module according to claim 4, further comprising high power MOSFET or IGBT switches for connecting the super capacitor to the low voltage power supply system of the vehicle.

### Claim 8 (depends on 4)

The super capacitor module according to claim 4, further comprising auxiliary battery to supply energy during periods where the super capacitor is unable to provide power to the high-powered DC-DC converter.

### Claim 9 (depends on 1)

A non-transitory computer readable medium storing a computer program comprising instructions that, when executed by a processor, carry out the method steps according to claim 1.