Vehicle

Patent metadata

Field	Value
Publication number	US-12155253-B2
Application number	US-202318205684-A
Country	US
Kind code	B2
Filing date	Jun 5, 2023
Priority date	Jul 14, 2022
Publication date	Nov 26, 2024
Grant date	Nov 26, 2024

Abstract

A vehicle includes a secondary battery, a heater configured to be able to raise a temperature of the secondary battery, and a charging control unit configured to be connectable to an external power source. The charging control unit is configured to be able to output electric power supplied from the external power source to the secondary battery and the heater when connected to the external power source. The charging control unit is configured to be able to request the external power source for a requested power amount, and to be able to receive a supply of a supplied power amount in accordance with the requested power amount from the external power source. The charging control unit requests the external power source for the requested power amount including a first power amount required for charging the secondary battery and a second power amount required for heating by the heater.

First claim

What is claimed is:

1. A vehicle comprising:
a secondary battery;
a heater configured to be able to raise a temperature of the secondary battery; and
a charging control unit configured to be connectable to an external power source, wherein
the charging control unit is configured to be able to output electric power supplied from the external power source to the secondary battery and the heater when connected to the external power source,
the charging control unit is configured to be able to request the external power source for a requested power amount, and to be able to receive a supply of a supplied power amount in accordance with the requested power amount from the external power source, and
the charging control unit requests the external power source for the requested power amount including a first power amount required for charging the secondary battery and a second power amount required for heating by the heater, wherein:
there is a response time that is time from when the requested power amount is requested to the external power source until the supplied power amount is supplied by the external power source in response to the requested power amount that has been requested; and
the charging control unit executes
a processing of calculating a predetermined power amount corresponding to the response time,
a processing of acquiring an indicated power amount that indicates electric power consumed by the heater, and
a processing of setting a power amount obtained by subtracting the predetermined power amount from the indicated power amount as the second power amount.

2. The vehicle according to claim 1 , wherein:
a maximum value of a change rate is set in advance for the indicated power amount; and
the predetermined power amount is a value equal to or greater than a value calculated by multiplying the maximum value of the change rate by the response time.

3. A vehicle comprising:
a secondary battery;
a heater configured to be able to raise a temperature of the secondary battery; and
a charging control unit configured to be connectable to an external power source, wherein
the charging control unit is configured to be able to output electric power supplied from the external power source to the secondary battery and the heater when connected to the external power source,
the charging control unit is configured to be able to request the external power source for a requested power amount, and to be able to receive a supply of a supplied power amount in accordance with the requested power amount from the external power source, and
the charging control unit requests the external power source for the requested power amount including a first power amount required for charging the secondary battery and a second power amount required for heating by the heater, wherein:
there is a response time that is time from when the requested power amount is requested to the external power source until the supplied power amount is supplied by the external power source in response to the requested power amount that has been requested; and
the charging control unit executes
a processing of calculating a predetermined power amount corresponding to the response time,
a processing of acquiring an indicated power amount that indicates electric power consumed by the heater,
a processing of acquiring an actually consumed power amount indicating electric power actually consumed by the heater, and
a processing of setting, as the second power amount, a smaller power amount of a power amount obtained by subtracting the predetermined power amount from the indicated power amount and the actually consumed power amount.

4. The vehicle according to claim 3 , wherein:
a maximum value of a change rate is set in advance for the indicated power amount; and
the predetermined power amount is a value equal to or greater than a value calculated by multiplying the maximum value of the change rate by the response time.

5. A vehicle comprising:
a secondary battery;
a heater configured to be able to raise a temperature of the secondary battery; and
a charging control unit configured to be connectable to an external power source, wherein
the charging control unit is configured to be able to output electric power supplied from the external power source to the secondary battery and the heater when connected to the external power source,
the charging control unit is configured to be able to request the external power source for a requested power amount, and to be able to receive a supply of a supplied power amount in accordance with the requested power amount from the external power source, and
the charging control unit requests the external power source for the requested power amount including a first power amount required for charging the secondary battery and a second power amount required for heating by the heater, wherein:
there is a response time that is time from when the requested power amount is requested to the external power source until the supplied power amount is supplied by the external power source in response to the requested power amount that has been requested;
a maximum value of a decrease rate is set in advance for the requested power amount; and
when a rapid decrease phenomenon occurs in which the requested power amount decreases beyond the maximum value of the decrease rate, the charging control unit continues an operation of the heater until the response time or more has elapsed from a time when the rapid decrease phenomenon occurred.

Assignees

• Toyota Motor Co Ltd
• Subaru Corp

Inventors

• Takesue Ippei
• Masuda Yo
• Fuke Kazuya

Classifications

• H02J7/40

  characterised by the exchange of charge or discharge related data · CPC title

• H02J7/90 Primary

  Regulation of charging or discharging current or voltage · CPC title

• H01M10/633

  characterised by algorithms, flow charts, software details or the like · CPC title

• B60R16/033

  characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) · CPC title

• H01M10/657

  by electric or electromagnetic means · CPC title