Yaw compensation system, method for restoring a safe driving state, vehicle brake system and motor vehicle

Patent metadata

Field	Value
Publication number	US-2024132150-A1
Application number	US-202318492108-A
Country	US
Kind code	A1
Filing date	Oct 22, 2023
Priority date	Oct 24, 2022
Publication date	Apr 25, 2024
Grant date	—

Abstract

The disclosure relates to a yaw compensation system for restoring a safe driving state in particular of a wheeled vehicle, such as a wheeled motor vehicle, for example a car. The disclosure furthermore relates to a method for restoring a safe driving state of the abovementioned vehicle, and to a motor vehicle.

First claim

1 . A yaw compensation system for restoring a safe driving state, comprising:
a driving dynamics sensor which is configured to determine a yaw dimension; a wheel angle setting unit; and a processing unit which is configured to identify a driving state on the basis of the yaw dimension, wherein the processing unit comprises a driving stability closed-loop control procedure which is designed, in the case of an unsafe driving state, to restore a safe driving state by influencing the wheel angle setting unit, wherein the driving stability closed-loop control procedure for restoring a safe driving state comprises a variable damping amount.

2 . The yaw compensation system according to claim 1 , wherein the damping amount is dependent on the yaw dimension.

3 . The yaw compensation system according to claim 1 , wherein the damping amount increases as the yaw dimension rises.

4 . The yaw compensation system according to claim 1 , wherein the system comprises a wheel speed sensor and the driving dynamics sensor is configured to determine a lateral acceleration, wherein the processing unit is designed to increase the damping amount when the wheel speed and/or lateral acceleration rises.

5 . The yaw compensation system according to claim 1 , wherein the system comprises a deceleration device which is designed to be activated by the driving stability closed-loop control procedure, wherein a safe driving state can be restored by deceleration of at least one vehicle wheel.

6 . The yaw compensation system according to claim 1 , further comprising a steering pulse generator with an electrical connection to the wheel angle setting unit, wherein the processing unit is configured to restore the safe driving state independently of a movement of the steering pulse generator.

7 . A method for restoring a safe driving state,
wherein: a yaw dimension is identified; a driving state is determined; in the case of an unsafe driving state, a wheel angle setting unit is influenced by a driving stability closed-loop control procedure in order to restore a safe driving state; wherein a damping amount of the driving stability closed-loop control procedure is varied.

8 . A vehicle brake system comprising the yaw compensation system designed according to claim 1 and an electrical braking device which is designed to transmit a braking torque to the vehicle wheel.

9 . (canceled)

10 . A yaw compensation system for restoring a safe driving state, comprising:
a wheel angle setting unit; and a processing unit configured to identify a driving state based on a yaw dimension, wherein the processing unit comprises a driving stability closed-loop control procedure that, in the case of an unsafe driving state, restores a safe driving state by influencing the wheel angle setting unit, wherein the driving stability closed-loop control procedure for restoring a safe driving state comprises a variable damping amount.

11 . The yaw compensation system according to claim 10 , wherein the damping amount is dependent on the yaw dimension.

12 . The yaw compensation system according to claim 10 , wherein the variable damping amount increases as the yaw dimension rises.

13 . The yaw compensation system according to claim 10 , further comprising a driving dynamics sensor configured to determine the yaw dimension.

14 . The yaw compensation system according to claim 13 , further comprising a wheel speed sensor, the driving dynamics sensor is configured to determine a lateral acceleration, wherein the processing unit is designed to increase the variable damping amount when the wheel speed and/or lateral acceleration rises.

15 . The yaw compensation system according to claim 10 , further comprising a deceleration device configured to be activated by the driving stability closed-loop control procedure, wherein a safe driving state can be restored by deceleration of at least one vehicle wheel.

16 . The yaw compensation system according to claim 10 , further comprising a steering pulse generator with an electrical connection to the wheel angle setting unit, wherein the processing unit is configured to restore the safe driving state independently of a movement of the steering pulse generator.

Assignees

• Zf Active Safety Gmbh

Inventors

• Marx Andreas

Classifications

• B60T2230/00

  Monitoring, detecting special vehicle behaviour; Counteracting thereof · CPC title

• B60T7/12

  for automatic initiation; for initiation not subject to will of driver or passenger {(limiting speed of vehicles other than rail vehicles B60K31/00)} · CPC title

• B60T2260/04

  Automatic transmission · CPC title

• B60T13/74

  with electrical assistance or drive · CPC title

• B60W50/0098

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