Battery electric vehicle

Patent metadata

Field	Value
Publication number	US-12420642-B2
Application number	US-202418928872-A
Country	US
Kind code	B2
Filing date	Oct 28, 2024
Priority date	Nov 8, 2023
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A battery electric vehicle includes an electric motor as a driving source. The battery electric vehicle includes: a driving operation member that is used to drive the battery electric vehicle; a pseudo shifting operation member imitating an operation member that is used to perform a shifting operation of a manual transmission internal combustion engine vehicle; a processor that controls the battery electric vehicle according to operation of the driving operation member; and an in-vehicle battery that is charged with electrical energy generated when regenerative braking of the battery electric vehicle is applied. The processor executes, according to selection by a driver, a control mode in which operation of the pseudo shifting operation member is associated with torque of the electric motor.

First claim

What is claimed is:

1. A battery electric vehicle that includes an electric motor as a driving source, the battery electric vehicle comprising:
a driving operation member that is used to drive the battery electric vehicle;
a pseudo shifting operation member imitating an operation member that is used to perform a shifting operation of a manual transmission internal combustion engine vehicle;
a processor that controls the battery electric vehicle according to operation of the driving operation member; and
an in-vehicle battery that is charged with electrical energy generated when regenerative braking of the battery electric vehicle is applied, wherein:
the processor is configured to execute, according to selection by a driver, a control mode in which operation of the pseudo shifting operation member is associated with torque of the electric motor, and
in the control mode, the processor is configured to:
determine virtual shift positions based on the operation of the pseudo shifting operation member,
when the battery electric vehicle is traveling and there is no accelerator operation input, apply the regenerative braking with a strength according to the virtual shift positions,
notify the driver of the battery electric vehicle of a shift position according to a charge accepting capacity of the in-vehicle battery,

a threshold of the charge accepting capacity is set for each of the virtual shift positions, and the processor is configured to:
when the control mode is being executed and the regenerative braking with the strength according to the virtual shift positions is being applied, determine whether the charge accepting capacity is less than the threshold, and
when the charge accepting capacity is less than the threshold set for a first virtual shift position among the virtual shift positions, notify the driver of a shift position on an upshift side with respect to the first virtual shift position.

2. The battery electric vehicle according to claim 1 , wherein the processor is configured to, when a plurality of shift positions is on the upshift side of the first virtual shift position, notify the driver of the plurality of shift positions.

3. The battery electric vehicle according to claim 1 , wherein the processor is configured to
when the control mode is being executed and the regenerative braking with the strength according to the virtual shift positions is being applied, determine whether the charge accepting capacity is less than a predetermined amount, and
when the charge accepting capacity is less than the predetermined amount, request the driver not to shift down.

4. The battery electric vehicle according to claim 3 , wherein the processor is configured to determine that the charge accepting capacity is less than the predetermined amount when a state of charge of the in-vehicle battery is equal to or greater than a predetermined value or when there is an abnormality in the in-vehicle battery.

5. The battery electric vehicle according to claim 1 , wherein:
the driving operation member includes an accelerator pedal; and
the pseudo shifting operation member includes
a pseudo H-shifter imitating an H-shifter of a manual transmission, and
a pseudo clutch operation device imitating a clutch operation device.

6. The battery electric vehicle according to claim 5 , wherein the processor is configured to change the torque of the electric motor according to a shift position selected by the pseudo H-shifter, an amount of operation of the pseudo clutch operation device, and an amount of operation of the accelerator pedal, when in the control mode.

7. The battery electric vehicle according to claim 1 , wherein:
the driving operation member includes an accelerator pedal; and
the pseudo shifting operation member includes a pseudo sequential shifter imitating a sequential shifter of a manual transmission.

8. The battery electric vehicle according to claim 7 , wherein the processor is configured to change the torque of the electric motor according to a shift position selected by the pseudo sequential shifter and an amount of operation of the accelerator pedal, when in the control mode.

9. The battery electric vehicle according to claim 1 , wherein:
the driving operation member includes an accelerator pedal; and
the pseudo shifting operation member includes a pseudo H-shifter imitating an H-shifter of a manual transmission.

10. The battery electric vehicle according to claim 9 , wherein the processor is configured to change the torque of the electric motor according to a shift position selected by the pseudo H-shifter and an amount of operation of the accelerator pedal, when in the control mode.

11. A battery electric vehicle that includes an electric motor as a driving source, the battery electric vehicle comprising:
a driving operation member that is used to drive the battery electric vehicle;
a pseudo shifting operation member imitating an operation member that is used to perform a shifting operation of a manual transmission internal combustion engine vehicle;
a processor that controls the battery electric vehicle according to operation of the driving operation member; and
an in-vehicle battery that is charged with electrical energy generated when regenerative braking of the battery electric vehicle is applied, wherein:
the processor is configured to execute, according to selection by a driver, a control mode in which operation of the pseudo shifting operation member is associated with torque of the electric motor,
in the control mode, the processor is configured to:
determine virtual shift positions based on the operation of the pseudo shifting operation member,
when the battery electric vehicle is traveling and there is no accelerator operation input, apply the regenerative braking with a strength according to the virtual shift positions,
notify the driver of the battery electric vehicle of a shift position according to a charge accepting capacity of the in-vehicle battery, and

the processor is configured to execute:
when the control mode is being executed and the regenerative braking with the strength according to the virtual shift positions is being applied, determine whether the charge accepting capacity is less than a predetermined amount, and
when the charge accepting capacity is less than the predetermined amount, request the driver not to shift down.

12. The battery electric vehicle according to claim 11 , wherein the processor is configured to determine that the charge accepting capacity is less than the predetermined amount when a state of charge of the in-vehicle battery is equal to or greater than a predetermined value or when there is an abnormality in the in-vehicle battery.

Assignees

• Toyota Motor Co Ltd

Inventors

• Isami Yoichiro
• Imamura Tatsuya
• Mizutani Kenji
• Okada Tsuyoshi
• Yamamuro Naoki

Classifications

• B60L2250/26

  by pedal actuation · CPC title

• B60L2240/423

  Torque · CPC title

• Y02T10/64

  Electric machine technologies in electromobility · CPC title

• B60Y2200/91

  Electric vehicles · CPC title

• B60L2240/50

  related to clutches · CPC title