US 11,447,019 B2Granted

Vehicle control device

AssigneeToyota Jidosha Kabushiki Kaisha

InventorMasaru Kimura

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Abstract

A vehicle control device includes a power storage device, a drive device, a system main relay attached to a power line, and a charge circuit connected to the power line on a side of the drive device from the system main relay. The vehicle control device turns off the system main relay in a power shortage of the power storage device, and store a power shortage state of the power storage device to prohibit reactivation of the system. The vehicle control device, when charging of the power storage device using the charge circuit is requested, determines whether the power shortage state of the power storage device is stored, and when the power shortage state of the power storage device is stored, releases prohibition of system reactivation when an output limit of the power storage device reaches predetermined electric power or more due to charging.

Claims1

Dependent claims

A vehicle control device comprising:

a power storage device;
a drive device configured to be driven by electric power from the power storage device;
a system main relay attached to a power line between the power storage device and the drive device;
and
a charge circuit connected to the power line on a side of the drive device from the system main relay,
wherein the vehicle control device is configured to turn off the system main relay in a power shortage of the power storage device, and store a power shortage state of the power storage device to prohibit reactivation of the system, and configured to, in a case where charging of the power storage device using the charge circuit is requested, determine whether the power shortage state of the power storage device is stored, and in a case where the determination is made that the power shortage state of the power storage device is stored, release prohibition of system reactivation when an output limit of the power storage device reaches predetermined electric power or more due to charging.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/022,750Filed 16 Sep 2020
Priority: JP JP2019-2209756 Dec 2019
Published: US 2021/0170882 A110 Jun 2021
Granted: 20 Sep 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

B60L 15/20
Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles: for control of the vehicle or its…
B60L 3/04
Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy…:…
B60L 50/60
Using propulsion power supplied by batteries or fuel cells: using power supplied by batteries
B60L 58/12
For monitoring or controlling batteries: responding to state of charge [SoC]