Vehicle

Patent metadata

Field	Value
Publication number	US-2020307412-A1
Application number	US-201916717572-A
Country	US
Kind code	A1
Filing date	Dec 17, 2019
Priority date	Mar 27, 2019
Publication date	Oct 1, 2020
Grant date	—

Abstract

A vehicle includes a battery, an electric power acquirer, a relay, a pre-charge relay, a power supply unit, and a controller. The controller performs a control of electric power transmission through a power line of the vehicle. The controller executes pre-charge processing on a request for operation of the power supply unit, with the relay being in a disconnected state, and with the electric power acquirer being available for electric power acquisition. The pre-charge processing includes raising a voltage of the power line by switching the pre-charge relay. The controller causes a transition of a mode of the electric power transmission to a direct transmission mode. The direct transmission mode includes transmitting electric power acquired by the electric power acquirer to the power supply unit.

First claim

1 . A vehicle, comprising:
a battery configured to accumulate electric power for travel of the vehicle; an electric power acquirer able to acquire charging electric power for the battery, from outside the vehicle; a relay configured to switch coupling between the battery and a power line of the vehicle; a pre-charge relay able to couple the battery and the power line through a pre-charge device; a power supply unit able to receive electric power from the power line and supply a power supply voltage to a device other than a traveling motor; and a controller configured to perform a control of electric power transmission through the power line, the controller being configured to
execute pre-charge processing on a request for operation of the power supply unit, with the relay being in a disconnected state, and with the electric power acquirer being available for electric power acquisition, the pre-charge processing including raising a voltage of the power line by switching the pre-charge relay, and
cause a transition of a mode of the electric power transmission to a direct transmission mode, the direct transmission mode including transmitting electric power acquired by the electric power acquirer to the power supply unit.

2 . The vehicle according to claim 1 , wherein the direct transmission mode has a duration including a period during which the disconnected state of the relay is maintained.

3 . The vehicle according to claim 1 , wherein the controller switches the relay to a connected state, in the direct transmission mode, on a basis of electric power acquirable from the electric power acquirer or electric power to be involved in the operation of the power supply unit, or both.

4 . The vehicle according to claim 2 , wherein the controller switches the relay to a connected state, in the direct transmission mode, on a basis of electric power acquirable from the electric power acquirer or electric power to be involved in the operation of the power supply unit, or both.

5 . The vehicle according to claim 1 , wherein the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of a state of charge of the battery.

6 . The vehicle according to claim 2 , wherein the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of a state of charge of the battery.

7 . The vehicle according to claim 3 , wherein the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of a state of charge of the battery.

8 . The vehicle according to claim 4 , wherein the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of a state of charge of the battery.

9 . The vehicle according to claim 1 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

10 . The vehicle according to claim 2 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

11 . The vehicle according to claim 3 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

12 . The vehicle according to claim 4 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

13 . The vehicle according to claim 5 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

14 . The vehicle according to claim 6 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

15 . The vehicle according to claim 7 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

16 . The vehicle according to claim 8 , further comprising a mode setting unit able to set a control mode of the vehicle, wherein
the controller switches whether or not to cause the transition to the direct transmission mode, on a basis of the control mode.

Assignees

• Subaru Corp

Inventors

• Moriya Fumiyuki
• Fuke Kazuya

Classifications

• H02J13/34

  the equipment being switches, relays or circuit breakers · CPC title

• H02J7/965

  obtained with the battery disconnected from the charge or discharge circuit · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H02J7/62 Primary

  against overcurrent · CPC title

• B60L53/62

  in response to charging parameters, e.g. current, voltage or electrical charge · CPC title