Control device of vehicle

Patent metadata

Field	Value
Publication number	US-11059488-B2
Application number	US-202016820858-A
Country	US
Kind code	B2
Filing date	Mar 17, 2020
Priority date	Mar 20, 2019
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

A control device of a vehicle including an engine, a power transmission device, a shift operation device, and a switching device includes: a shift-switching control portion outputting the control command signal when it is determined that the shift switching is permitted, and not outputting the control command signal when it is determined that the shift switching is prohibited, at the time of a shift switching operation; and an engine-starting control portion outputting a first signal causing the shift-switching control portion to determine that the shift switching is prohibited and initiating starting of the engine after determining that the shift switching is not being performed when it is determined that the shift switching is permitted at the time of an engine starting operation performed by the driver for starting the engine, and immediately initiating the engine when it is determined that the shift switching is prohibited.

First claim

What is claimed is:

1. A control device of a vehicle including an engine, a power transmission device, a shift operation device operated by a driver to an operation position corresponding to a shift position of the power transmission device, and a switching device performing shift switching for switching the shift position of the power transmission device through actuation of an electric actuator based on a control command signal corresponding to the operation position, the control device comprising:
a shift-switching control portion outputting the control command signal when it is determined that the shift switching is permitted, and not outputting the control command signal when it is determined that the shift switching is prohibited, at the time of a shift switching operation performed by the driver for causing the switching device to perform the shift switching; and
an engine-starting control portion outputting a first signal causing the shift-switching control portion to determine that the shift switching is prohibited and initiating starting of the engine after determining that the shift switching is not being performed when it is determined that the shift switching is permitted at the time of an engine starting operation performed by the driver for starting the engine, and immediately initiating the engine when it is determined that the shift switching is prohibited.

2. The control device of the vehicle according to claim 1 , wherein the engine-starting control portion determines whether the shift switching is being performed based on whether a predetermined delay time has elapsed from output of the first signal.

3. The control device of the vehicle according to claim 2 , wherein the predetermined delay time includes a first predefined time that is a maximum time required for the shift switching.

4. The control device of the vehicle according to claim 1 , wherein
the engine-starting control portion initiates starting of the engine while the shift switching is permitted, and wherein
the engine-starting control portion outputs a second signal causing the shift-switching control portion to maintain the determination that the shift switching is prohibited, and initiates starting of the engine when it is determined that the shift switching is prohibited at the time of the engine starting operation performed by the driver.

5. The control device of the vehicle according to claim 4 , wherein at the time of the shift switching operation performed by the driver, the shift-switching control portion outputs the control command signal when a second failure preventing the transmission of the second signal has occurred and a predetermined waiting time has elapsed from permission of the shift switching, and suspends outputting the control command signal when the second failure has occurred and the predetermined waiting time has not elapsed.

6. The control device of the vehicle according to claim 5 , wherein the predetermined waiting time includes a second predefined time that is a maximum time required for starting the engine.

7. The control device of the vehicle according to claim 1 , wherein when it is determined the shift switching is permitted and a first failure preventing the transmission of the first signal has occurred at the time of the engine starting operation performed by the driver, the engine-starting control portion makes a change such that the shift switching is prohibited, and suspends starting the engine in association with the engine starting operation.

8. The control device of the vehicle according to claim 1 , wherein each of the shift-switching control portion and the engine-starting control portion determines that the shift switching is permitted when a power supply state of the vehicle is a first state in which the shift switching is permitted, and determines that the shift switching is prohibited when the power supply state is a second state in which the shift switching is prohibited.

Assignees

• Toyota Motor Co Ltd

Inventors

• Tomita Takashi

Classifications

• B60W50/02

  Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures · CPC title

• B60W10/10 Primary

  including control of change-speed gearings · CPC title

• B60W50/0098

  Details of control systems ensuring comfort, safety or stability not otherwise provided for · CPC title

• B60W30/192 Primary

  Mitigating problems related to power-up or power-down of the driveline, e.g. start-up of a cold engine · CPC title

• F02N2200/0802

  Transmission state, e.g. gear ratio or neutral state · CPC title