Hybrid vehicle control apparatus

Patent metadata

Field	Value
Publication number	US-12384236-B2
Application number	US-202118251349-A
Country	US
Kind code	B2
Filing date	Dec 21, 2021
Priority date	Dec 21, 2021
Publication date	Aug 12, 2025
Grant date	Aug 12, 2025

Abstract

A hybrid vehicle control apparatus includes a controller. The controller is configured to switch an operation mode of a hybrid vehicle between a vehicle-stopped electric power generation mode, a first reverse traveling mode, and a second reverse traveling mode. The vehicle-stopped electric power generation mode is a mode in which electric power generation is performed, while the hybrid vehicle is stopped, by sending power of an engine to an electric motor. The first reverse traveling mode is a mode in which the reverse traveling is performed by the power of the engine. The second reverse traveling mode is a mode in which the reverse traveling is performed by power of the electric motor. The controller is configured to switch the operation mode to the second reverse traveling mode when switching from the vehicle-stopped electric power generation mode to the reverse traveling is requested.

First claim

The invention claimed is:

1. A hybrid vehicle control apparatus that is a control apparatus to be mounted on a hybrid vehicle, the hybrid vehicle comprising a driving wheel, an engine, an electric motor, a transmission, and a clutch, the engine being an internal combustion engine, the electric motor generating power to be outputted to the driving wheel, the transmission being positioned on a power transmission path between the electric motor and the driving wheel, the clutch being configured to cut off the power transmission path between the engine and the electric motor, the hybrid vehicle control apparatus comprising
a controller configured to switch an operation mode of the hybrid vehicle between a vehicle-stopped electric power generation mode, a first reverse traveling mode, and a second reverse traveling mode, the vehicle-stopped electric power generation mode being a mode in which electric power generation is performed, while the hybrid vehicle is stopped, by sending power of the engine to the electric motor, the first reverse traveling mode being a mode in which reverse traveling is performed by the power of the engine, the second reverse traveling mode being a mode in which the reverse traveling is performed by power of the electric motor, wherein
the controller is configured to switch the operation mode to the second reverse traveling mode when switching from the vehicle-stopped electric power generation mode to the reverse traveling is requested.

2. The hybrid vehicle control apparatus according to claim 1 , wherein the controller is configured to switch the operation mode to the second reverse traveling mode even if the engine is being driven when the switching from the vehicle-stopped electric power generation mode to the reverse traveling is requested.

3. The hybrid vehicle control apparatus according to claim 2 ,
wherein the hybrid vehicle comprises a forward clutch, a reverse clutch, an output clutch, and a clutch switching device, the forward clutch being configured to transmit the power of the engine in forward rotation as it is, the reverse clutch being configured to transmit the power of the engine via a reverse gear mechanism, the output clutch being configured to transmit, to the driving wheel, the power transmitted via the forward clutch or the reverse clutch, the clutch switching device being configured to switch respective states of the forward clutch, the reverse clutch, and the output clutch,
wherein the controller is configured to, in the vehicle-stopped electric power generation mode, control the forward clutch to be in an engaged state, control the reverse clutch to be in a disengaged state, and control the output clutch to be in a disengaged state,
wherein the controller is configured to, in the first reverse traveling mode, control the forward clutch to be in a disengaged state, control the reverse clutch to be in an engaged state, and control the output clutch to be in an engaged state, and
wherein the controller is configured to, in the second reverse traveling mode, control the forward clutch to be in the disengaged state, control the reverse clutch to be in the disengaged state, and control the output clutch to be in the engaged state.

4. The hybrid vehicle control apparatus according to claim 3 , wherein the clutch switching device is configured to perform switching between the engaged state and the disengaged state of each of the forward clutch, the reverse clutch, and the output clutch with use of hydraulic pressure.

5. The hybrid vehicle control apparatus according to claim 4 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

6. The hybrid vehicle control apparatus according to claim 3 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

7. The hybrid vehicle control apparatus according to claim 2 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

8. The hybrid vehicle control apparatus according to claim 1 , wherein,
the hybrid vehicle comprises a forward clutch, a reverse clutch, an output clutch, and a clutch switching device, the forward clutch being configured to transmit the power of the engine in forward rotation as it is, the reverse clutch being configured to transmit the power of the engine via a reverse gear mechanism, the output clutch being configured to transmit, to the driving wheel, the power transmitted via the forward clutch or the reverse clutch, the clutch switching device being configured to switch respective states of the forward clutch, the reverse clutch, and the output clutch, wherein
the controller is configured to, in the vehicle-stopped electric power generation mode, control the forward clutch to be in an engaged state, control the reverse clutch to be in a disengaged state, and control the output clutch to be in a disengaged state,
the controller is configured to, in the first reverse traveling mode, control the forward clutch to be in a disengaged state, control the reverse clutch to be in an engaged state, and control the output clutch to be in an engaged state, and
the controller is configured to, in the second reverse traveling mode, control the forward clutch to be in the disengaged state, control the reverse clutch to be in the disengaged state, and control the output clutch to be in the engaged state.

9. The hybrid vehicle control apparatus according to claim 8 , wherein the clutch switching device is configured to perform switching between the engaged state and the disengaged state of each of the forward clutch, the reverse clutch, and the output clutch with use of hydraulic pressure.

10. The hybrid vehicle control apparatus according to claim 9 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

11. The hybrid vehicle control apparatus according to claim 8 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

12. The hybrid vehicle control apparatus according to claim 1 , wherein the controller is configured to switch the operation mode to the first reverse traveling mode when switching from the operation mode other than the vehicle-stopped electric power generation mode to the reverse traveling is requested.

Assignees

• Subaru Corp

Inventors

• Kobayashi Tokito

Classifications

• B60W20/40

  Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)} · CPC title

• B60K6/38

  characterised by the driveline clutches (shift clutches within the gearing or transmission B60K6/36) · CPC title

• B60K6/26

  characterised by the motors or the generators · CPC title

• B60W10/08

  including control of electric propulsion units, e.g. motors or generators · CPC title

• B60W10/06

  including control of combustion engines · CPC title