# US 11,305,667 B2 · Vehicle and power control system

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- Number: US 11,305,667 B2
- Document ID: US11305667B2
- Status: Granted
- Kind: B2
- Application number: 16/190,913
- Filed: 2018-11-14
- Published: 2019-05-30
- Granted: 2022-04-19
- Earliest claimed: 2017-11-24
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Shinji Ichikawa
- Web page: https://patentgrep.com/patent/US11305667B2

## CPC

- B60L 58/13: Maintaining the SoC within a determined range
- B60L 53/14: Conductive energy transfer
- B60L 55/00: Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
- H02J 3/322: {the battery being on-board an electric or hybrid vehicle, e.g. vehicle to grid arrangements [V2G], power aggregation, use of the battery for network load balancing, coordinated or cooperative battery charging}
- H02J 7/35: with light sensitive cells
- H02J 7/90: Regulation of charging or discharging current or voltage
- H02J 7/02: for charging batteries from AC mains by converters
- H02J 7/62: against overcurrent
- H02J 7/82: Control of state of charge [SOC]
- H02J 2105/12: supplying households or buildings
- H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- Y02T 90/167: Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
- Y04S 10/126: the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
- Y04S 30/12: Remote or cooperative charging
- 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
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

A vehicle includes a power storage device, a connector, a power converter, and an ECU. The connector and the power converter are configured to supply, to the power facility, power stored in the power storage device. When the vehicle is connected to the power facility via a power cable, the ECU is configured to control an upper limit SOC and a lower limit SOC in association with time. The upper limit SOC and lower limit SOC define an SOC usable range of the power storage device.

## Claims

### Claim 1

A vehicle comprising:
a power storage device;
a power supply device configured to supply, to outside the vehicle, power stored in the power storage device; and
a control device configured to control a usable range of an SOC of the power storage device in association with time, when the power supply device is connected to a power facility provided outside the vehicle,
wherein the power storage device is configured to receive power such that the SOC of the power storage device exceeds an upper limit of the usable range until the SOC of the power storage device exceeds the upper limit of the usable range for a predetermined time, wherein the predetermined time is set by the control device in advance of the SOC exceeding the upper limit and the predetermined time begins when the SOC of the power storage device exceeds the upper limit of the usable range.

### Claim 2 (depends on 1)

The vehicle according to claim 1, wherein
the power supply device is further configured to charge the power storage device using power supplied from the power facility, and
the control device is further configured to set, in association with the time, the charging of the power storage device using the power supplied from the power facility.

### Claim 3 (depends on 1)

The vehicle according to claim 1, further comprising a setting device configured to allow a user to set the usable range.

### Claim 4 (depends on 3)

The vehicle according to claim 3, wherein the setting device is further configured to allow the user to set a time period during which the usable range is used.

### Claim 5 (depends on 3)

The vehicle according to claim 3, wherein
the usable range is defined by an upper limit SOC indicating an upper limit of use of the SOC and a lower limit SOC indicating a lower limit of the use of the SOC, and
the setting device is configured to allow the user to set the upper limit SOC and the lower limit SOC separately.

### Claim 6 (depends on 1)

The vehicle according to claim 1, further comprising a communication device configured to communicate with a terminal device of a user of the vehicle and receive, from the terminal device, the usable range set by the user in the terminal device.

### Claim 7 (depends on 6)

The vehicle according to claim 6, wherein the communication device is further configured to receive, from the terminal device, a time period during which the usable range is used, the time period being set by the user in the terminal device.

### Claim 8 (depends on 1)

The vehicle according to claim 1, wherein
the power supply device is further configured to charge the power storage device using power supplied from the power facility, and
the control device is configured to permit the SOC to exceed the upper limit of the usable range when the power facility is a facility configured to supply power to the vehicle and receive power from the vehicle.

### Claim 9 (depends on 1)

The vehicle according to claim 1, wherein the control device is configured to permit the SOC to exceed the upper limit of the usable range when the power with which the power storage device is charged is surplus power resulting from solar power generation.

### Claim 10

A power control system comprising:
a vehicle; and
a terminal device, wherein
the vehicle includes
a power storage device,
a power supply device configured to supply, to outside the vehicle, power stored in the power storage device, and
a control device configured to control a usable range of an SOC of the power storage device in association with time, when the power supply device is connected to a power facility provided outside the vehicle, and the terminal device includes
a setting device configured to allow a user to set the usable range, and
a communication device configured to transmit, to the vehicle, the usable range set by the user in the setting device,
the power storage device is configured to receive power such that the SOC of the power storage device exceeds an upper limit of the usable range until the SOC of the power storage device exceeds the upper limit of the usable range for a predetermined time, wherein the predetermined time is set by the control device in advance of the SOC exceeding the upper limit and the predetermined time begins when the SOC of the power storage device exceeds the upper limit of the usable range.

### Claim 11 (depends on 10)

The power control system according to claim 10, wherein
the usable range is defined by an upper limit SOC indicating an upper limit of use of the SOC and a lower limit SOC indicating a lower limit of the use of the SOC, and
the setting device is configured to allow the user to set the upper limit SOC and the lower limit SOC separately.