Control method for vehicle, vehicle system, and vehicle controller

Patent metadata

Field	Value
Publication number	US-11840146-B2
Application number	US-201916965947-A
Country	US
Kind code	B2
Filing date	Jan 29, 2019
Priority date	Feb 2, 2018
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

In a control method for a vehicle and a vehicle controller that add deceleration to a vehicle so as to control a vehicle posture when a turning operation of a steering system is performed, the deceleration is appropriately set on the basis of an operation of a single pedal. The control method for the vehicle includes: a step of adding the deceleration that corresponds to an accelerator pedal depression amount to a vehicle 1 when the accelerator pedal depression amount is smaller than a specified value A 1 that is larger than 0; a step of determining whether the turning operation of the steering system is performed on the basis of a steering angle detected by a steering angle sensor 8 ; a step of adding the deceleration to the vehicle 1 so as to control the vehicle posture when it is determined that the turning operation of the steering system is performed; and a step of setting the deceleration added to the vehicle to a smaller value when the accelerator pedal depression amount is smaller than the specified value and is a first value than when the accelerator pedal depression amount is smaller than the specified value and is a second value (>the first value).

First claim

The invention claimed is:

1. A control method for a vehicle that has: a steering angle sensor that detects a steering angle of a steering system; and an accelerator sensor that detects an accelerator pedal depression amount, the control method for the vehicle comprising:
a step of adding deceleration that corresponds to the accelerator pedal depression amount to the vehicle when said accelerator pedal depression amount detected by the accelerator sensor is smaller than a specified value that is larger than 0;
a step of determining whether a turning operation of the steering system is performed on the basis of the steering angle that is detected by the steering angle sensor;
a step of adding the deceleration to the vehicle so as to control a vehicle posture when it is determined that the turning operation of the steering system is performed; and
a step of setting the deceleration, which is added to the vehicle at the time when it is determined that the turning operation of the steering system is performed, to a smaller value when the accelerator pedal depression amount is smaller than the specified value and is a first value than when the accelerator pedal depression amount is smaller than the specified value and is a second value that is larger than the first value.

2. The control method for the vehicle according to claim 1 ,
wherein, in the step of setting the deceleration, when the accelerator pedal depression amount is smaller than the specified value, the deceleration that is added to the vehicle is further reduced with a reduction in said accelerator pedal depression amount.

3. The control method for the vehicle according to claim 1 ,
wherein, in the step of setting the deceleration, when the accelerator pedal depression amount is equal to or larger than the specified value, the deceleration that is added to the vehicle is further reduced with an increase in said accelerator pedal depression amount.

4. The control method for the vehicle according to claim 1 ,
the vehicle having a generator that is driven by a wheel to generate regenerative power,
the control method for the vehicle further comprising:
a step of causing the generator to generate the regenerative power so as to add the set deceleration to the vehicle.

5. The control method for the vehicle according to claim 4 ,
the vehicle having a braking device that adds a braking force to a wheel,
the control method for the vehicle further comprising:
a step of causing the braking device to add the braking force so as to add the set deceleration to the vehicle.

6. A vehicle system comprising: a steering angle sensor that detects a steering angle of a steering system; an accelerator sensor that detects an accelerator pedal depression amount; and a processor,
wherein the processor is configured to:
add deceleration that corresponds to the accelerator pedal depression amount to the vehicle when said accelerator pedal depression amount detected by the accelerator sensor is smaller than a specified value that is larger than 0;
determine whether a turning operation of the steering system is performed on the basis of the steering angle that is detected by the steering angle sensor;
add the deceleration to the vehicle so as to control a vehicle posture when it is determined that the turning operation of the steering system is performed; and
reduce the deceleration, which is added to the vehicle at the time when it is determined that the turning operation of the steering system is performed, to be smaller when the accelerator pedal depression amount is smaller than the specified value and is a first value than when the accelerator pedal depression amount is smaller than the specified value and is a second value that is larger than the first value.

7. The control method for the vehicle according to claim 2 ,
wherein, in the step of setting the deceleration, when the accelerator pedal depression amount is equal to or larger than the specified value, the deceleration that is added to the vehicle is further reduced with an increase in said accelerator pedal depression amount.

8. The control method for the vehicle according to claim 7 ,
the vehicle having a generator that is driven by a wheel to generate regenerative power,
the control method for the vehicle further comprising:
a step of causing the generator to generate the regenerative power so as to add the set deceleration to the vehicle.

9. The control method for the vehicle according to claim 8 ,
the vehicle having a braking device that adds a braking force to a wheel,
the control method for the vehicle further comprising:
a step of causing the braking device to add the braking force so as to add the set deceleration to the vehicle.

10. The control method for the vehicle according to claim 3 ,
the vehicle having a generator that is driven by a wheel to generate regenerative power,
the control method for the vehicle further comprising:
a step of causing the generator to generate the regenerative power so as to add the set deceleration to the vehicle.

11. The control method for the vehicle according to claim 10 ,
the vehicle having a braking device that adds a braking force to a wheel,
the control method for the vehicle further comprising:
a step of causing the braking device to add the braking force so as to add the set deceleration to the vehicle.

Assignees

• Mazda Motor

Inventors

• Umetsu Daisuke
• Sunahara Osamu
• Ogawa Daisaku

Classifications

• B60L15/2009 Primary

  for braking · CPC title

• B60L7/18

  Controlling the braking effect (B60L7/12, B60L7/14, B60L7/16 take precedence) · CPC title

• B60L7/26

  Controlling the braking effect · CPC title

• B60W10/08

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

• B60W10/184

  with wheel brakes · CPC title