Vehicle Motion Control Device, Vehicle Motion Control Method, And Vehicle Motion Control System
US-2022185249-A1 · Jun 16, 2022 · US
Vehicle control system
US11827211B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11827211-B2 |
| Application number | US-202217648760-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 24, 2022 |
| Priority date | Jan 25, 2021 |
| Publication date | Nov 28, 2023 |
| Grant date | Nov 28, 2023 |
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- Title
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Abstract
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A control system for a vehicle is provided, which includes a driving force source configured to generate torque for driving drive wheels, a steering wheel, a steering angle sensor, and a controller. Based on the detected steering angle, the controller reduces the driving torque to add deceleration to the vehicle when the steering wheel is being turned in one direction, and increases the torque to add acceleration when the steering wheel is being turned back in the other direction. The controller controls the torque, when the steering wheel is being turned in the returning direction from a state where it is turned in the one direction, so as to add forward acceleration until the steering wheel returns to a neutral position, and when the steering wheel is then being turned in the other direction after passing through the neutral position, so as not to add the forward acceleration.
First claim
Opening claim text (preview).
What is claimed is: 1. A control system for a vehicle, comprising: a driving force source configured to generate torque for driving drive wheels of the vehicle; a steering wheel configured to be operated by a driver; a steering angle sensor configured to detect a steering angle corresponding to operation of the steering wheel; and a controller configured to, based on the steering angle detected by the steering angle sensor, reduce the torque generated by the driving force source by a reducing torque to add deceleration to the vehicle when the steering wheel is being turned in one direction, and increase the torque by an increasing torque to add acceleration to the vehicle when the steering wheel is being turned back in the other, returning direction, wherein the controller controls the torque generated by the driving force source, when the steering wheel is being turned in the returning direction from a state where the steering wheel is turned in the one direction, so as to add forward acceleration to the vehicle until the steering wheel returns to a neutral position, and when the steering wheel is then being turned in the other direction after passing through the neutral position, so as not to add the forward acceleration to the vehicle, and wherein the controller is configured to set the reducing torque and the increasing torque, respectively, so that a rate of change of the torque generated by the driving force source is kept below a predetermined threshold. 2. The control system of claim 1 , wherein the controller performs a control for reducing the torque generated by the driving force source so as to add forward deceleration to the vehicle, when the steering wheel is turned in the returning direction from a state where the steering wheel is turned in the one direction, and the steering wheel is then being turned in the other direction after passing through the neutral position. 3. The control system of claim 2 , wherein the controller controls the torque generated by the driving force source so that the forward acceleration added to the vehicle becomes smaller as the steering wheel becomes closer to the neutral position, when the steering wheel is being turned in the returning direction from a state where the steering wheel is turned in the one direction, until the steering wheel returns to the neutral position. 4. The control system of claim 3 , wherein the driving force source is an electric motor, the vehicle is an electric vehicle, and the controller controls the torque generated by the electric motor. 5. The control system of claim 1 , wherein the controller controls the torque generated by the driving force source so that the forward acceleration added to the vehicle becomes smaller as the steering wheel becomes closer to the neutral position, when the steering wheel is being turned in the returning direction from a state where the steering wheel is turned in the one direction, until the steering wheel returns to the neutral position. 6. The control system of claim 5 , wherein the driving force source is an electric motor, the vehicle is an electric vehicle, and the controller controls the torque generated by the electric motor.
Assignees
Inventors
Classifications
- B60W30/045Primary
Improving turning performance · CPC title
Steering angle · CPC title
Torque · CPC title
Longitudinal acceleration · CPC title
- B60L3/106Primary
for maintaining or recovering the adhesion of the drive wheels · CPC title
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Frequently asked questions
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- What does patent US11827211B2 cover?
- A control system for a vehicle is provided, which includes a driving force source configured to generate torque for driving drive wheels, a steering wheel, a steering angle sensor, and a controller. Based on the detected steering angle, the controller reduces the driving torque to add deceleration to the vehicle when the steering wheel is being turned in one direction, and increases the torque …
- Who is the assignee on this patent?
- Mazda Motor
- What technology area does this patent fall under?
- Primary CPC classification B60W30/045. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Nov 28 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).