# US 11,027,621 B2 · Vehicle and charging system

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,027,621 B2
- Document ID: US11027621B2
- Status: Granted
- Kind: B2
- Application number: 16/370,863
- Filed: 2019-03-29
- Published: 2019-10-24
- Granted: 2021-06-08
- Earliest claimed: 2018-04-20
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Shigeki Kinomura
- Web page: https://patentgrep.com/patent/US11027621B2

## CPC

- B60L 3/0023: {Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train}
- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B60L 53/305: {Communication interfaces}
- B60L 53/62: in response to charging parameters, e.g. current, voltage or electrical charge
- B60L 53/66: Data transfer between charging stations and vehicles
- H01M 10/443: {in response to temperature}
- H01R 13/6683: {with built-in sensor}
- B60L 2240/36: Temperature of vehicle components or parts
- Y02E 60/10: Energy storage using batteries
- 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 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
- 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
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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

An ECU performs a first process of transmitting first information to a server, and performs a second process by acquiring second information from the server. The first information includes temperature information about a temperature of an inlet during external charging, and information for identifying a charging station connected to the inlet. The second process includes a process of controlling the external charging based on the second information acquired before a start of the external charging. The second information includes abnormal overheat information about the charging station connected to the inlet. The occurrence of abnormal overheat is determined based on the temperature of the inlet during the external charging.

## Claims

### Claim 1

A vehicle configured to perform external charging in which a vehicle-mounted power storage device is charged by a charging facility provided outside of the vehicle, the vehicle comprising:
a power receiving inlet connectable to a connector of the charging facility during the external charging;
a communication device configured to communicate with a server provided outside of the vehicle; and
a controller configured to perform a first process of transmitting first information to the server through the communication device, and perform a second process by acquiring second information from the server through the communication device,
the first information including temperature information about a temperature of the power receiving inlet during the external charging, and information for identifying the charging facility having the connector connected to the power receiving inlet,
the second process including a process of controlling the external charging based on the second information acquired before a start of the external charging,
the second information including abnormal overheat information about the charging facility connected to the power receiving inlet, the abnormal overheat information indicating a history of abnormal overheat at the power receiving inlet connected to the connector during past external charging, and
occurrence of the abnormal overheat being determined based on the temperature of the power receiving inlet during the external charging.

### Claim 2 (depends on 1)

The vehicle according to claim 1, wherein
the second process includes a process of starting, when the abnormal overheat information indicates that there is a history of the abnormal overheat, the external charging with a suppressed charging current, as compared to when the abnormal overheat information indicates that there is no history of the abnormal overheat.

### Claim 3 (depends on 2)

The vehicle according to claim 2, wherein
the second process further includes a process of increasing, when the abnormal overheat at the power receiving inlet does not occur after the external charging is started with the suppressed charging current, the charging current more than that at the start of the external charging.

### Claim 4 (depends on 1)

The vehicle according to claim 1, wherein
the controller is configured to determine occurrence of the abnormal overheat based on the temperature of the power receiving inlet during the external charging, and
the temperature information includes information of the abnormal overheat.

### Claim 5

A charging system comprising:
a plurality of vehicles, each configured to perform external charging in which a vehicle-mounted power storage device is charged by a charging facility provided outside of the vehicle; and
a server configured to communicate with the plurality of vehicles,
each of the plurality of vehicles including
a power receiving inlet connectable to a connector of the charging facility during the external charging,
a communication device configured to communicate with the server, and
a controller configured to perform a first process of transmitting first information to the server through the communication device, and perform a second process by acquiring second information from the server through the communication device,
the first information including temperature information about a temperature of the power receiving inlet during the external charging, and information for identifying the charging facility having the connector connected to the power receiving inlet,
the second process including a process of controlling the external charging based on the second information acquired before a start of the external charging,
the second information including abnormal overheat information about the charging facility connected to the power receiving inlet, the abnormal overheat information indicating a history of abnormal overheat at the power receiving inlet connected to the connector during past external charging, and
occurrence of the abnormal overheat being determined based on the temperature of the power receiving inlet during the external charging.

### Claim 6 (depends on 5)

The charging system according to claim 5, wherein
the second process includes a process of starting, when the abnormal overheat information indicates that there is a history of the abnormal overheat, the external charging with a suppressed charging current, as compared to when the abnormal overheat information indicates that there is no history of the abnormal overheat.

### Claim 7 (depends on 6)

The charging system according to claim 6, wherein
the second process further includes a process of increasing, when the abnormal overheat at the power receiving inlet does not occur after the external charging is started with the suppressed charging current, the charging current more than that at the start of the external charging.

### Claim 8 (depends on 5)

The charging system according to claim 5, wherein
the server is configured to
generate the abnormal overheat information based on the first information collected from the plurality of vehicles, and
when the abnormal overheat has occurred for different vehicles of the plurality of vehicles, cause the abnormal overheat information about the charging facility connected to the power receiving inlet to indicate that there is a history of the abnormal overheat.

### Claim 9 (depends on 5)

The charging system according to claim 5, wherein
the temperature information includes the temperature of the power receiving inlet during the external charging, and
the server is configured to determine occurrence of the abnormal overheat based on the temperature information.

### Claim 10 (depends on 5)

The charging system according to claim 5, wherein
the controller is configured to determine occurrence of the abnormal overheat based on the temperature of the power receiving inlet during the external charging, and
the temperature information includes a result of the determination of presence or absence the abnormal overheat.
