vehicle

JP7874464B2Active Publication Date: 2026-06-16TOYOTA JIDOSHA KK +1

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2022-07-14
Publication Date
2026-06-16

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    Figure 0007874464000003
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Abstract

To provide a vehicle including a secondary battery that can be charged by using an external power source.SOLUTION: A vehicle includes a secondary battery, a heater configured to be capable of raise a temperature of the secondary battery, and a charging control section configured to be connectable to an external power source. The charging control section is configured to output electric power to be supplied from the external power source to the secondary battery and the heater when connected to the external power source. The charging control section is configured to be capable of requesting a request electric power amount to the external power source and receiving a supply electric power amount corresponding to the request electric power amount from the external power source. The charging control section requests the request electric power amount containing a first electric power amount necessary for charging the secondary battery and a second electric power amount required for heating by using the heater to the external power source.SELECTED DRAWING: Figure 1
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Claims

1. Rechargeable batteries and The heater configured to raise the temperature of the secondary battery, A charging control unit configured to be connectable to an external power supply, A vehicle equipped with, The charging control unit is configured to output 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 request a certain amount of power from the external power supply and to receive a supply of power from the external power supply corresponding to the requested amount of power. There exists a response time, which is the time from when the requested amount of power is requested from the external power source until the external power source supplies the requested amount of power in response to the requested amount of power. The charging control unit, A process for calculating a predetermined amount of power corresponding to the response time, A process to obtain an indicative power amount that indicates the power consumed by the heater, A process to obtain the second energy quantity by subtracting the predetermined energy quantity from the indicated energy quantity, Execute, A vehicle in which the charging control unit requests the external power supply the requested power amount, which includes a first amount of power necessary for charging the secondary battery and a second amount of power necessary for heating by the heater.

2. The aforementioned indicated power quantity has a predetermined maximum value for its rate of change. The vehicle according to claim 1, wherein the predetermined amount of power is a value greater than or equal to the value calculated by the product of the maximum value of the rate of change and the response time.

3. Rechargeable batteries and The heater configured to raise the temperature of the secondary battery, A charging control unit configured to be connectable to an external power supply, A vehicle equipped with, The charging control unit is configured to output 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 request a certain amount of power from the external power supply and to receive a supply of power from the external power supply corresponding to the requested amount of power. There exists a response time, which is the time from when the requested amount of power is requested from the external power source until the external power source supplies the requested amount of power in response to the requested amount of power. The charging control unit, A process for calculating a predetermined amount of power corresponding to the response time, A process to obtain an indicative power amount that indicates the power consumed by the heater, A process to obtain the actual power consumption amount, which indicates the power actually consumed by the heater, The process of setting the smaller of the energy amount obtained by subtracting the predetermined energy amount from the indicated energy amount and the actual energy consumption as the second energy amount, Execute, A vehicle in which the charging control unit requests the external power supply the requested power amount, which includes a first amount of power necessary for charging the secondary battery and a second amount of power necessary for heating by the heater.

4. The aforementioned indicated power quantity has a predetermined maximum value for its rate of change. The vehicle according to claim 3, wherein the predetermined amount of power is a value greater than or equal to the value calculated by the product of the maximum value of the rate of change and the response time.

5. Rechargeable batteries and The heater configured to raise the temperature of the secondary battery, A charging control unit configured to be connectable to an external power supply, A vehicle equipped with, The charging control unit is configured to output 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 request a certain amount of power from the external power supply and to receive a supply of power from the external power supply corresponding to the requested amount of power. The charging control unit requests the external power supply the requested power amount, which includes the first amount of power required to charge the secondary battery and the second amount of power required to heat the heater. There exists a response time, which is the time from when the requested amount of power is requested from the external power source until the external power source supplies the requested amount of power in response to the requested amount of power. The aforementioned power demand has a predetermined maximum reduction rate. The charging control unit, in the event of a sudden decrease in the requested power amount exceeding the maximum value of the decrease rate, causes the heater to continue operating from the time the sudden decrease occurs until a time equal to or greater than the response time has elapsed.