Yaw stability control system

A stability control and yaw technology, which is applied to automatic steering control components, brakes, vehicle components, etc., can solve problems such as yaw rate errors

A stability control and yaw technology, which is applied to automatic steering control components, brakes, vehicle components, etc., can solve problems such as yaw rate errors

CN101565043BInactive Publication Date: 2013-07-17VOLVO CAR CORP
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  • Yaw stability control system
  • Yaw stability control system
  • Yaw stability control system

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Embodiment Construction

[0020] Other objects and features of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings. However, it should be understood that the drawings are only designed for the purpose of illustration and not as a limitation of the present invention, and the scope of the present invention should be defined with reference to the appended claims. It should be further understood that the drawings are not necessarily drawn to scale and, unless otherwise indicated, are only meant to conceptually illustrate the structures and steps described herein. The same reference numerals will be used to describe corresponding features in the different drawings.

[0021] The invention is based on the fact that the driver of the vehicle is very sensitive to the steering wheel torque through tactile sensation in such a way that the driver knows the torque corresponding to a certain combination of curvature and vehicle speed. Thus...

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Abstract

The present invention relates to a yaw stability control system for a vehicle equipped with electric power assisted steering and a method of controlling it. The system comprises: means (10) for determining the occurrence of understeer; means for determining the degree of understeer after the occurrence of understeer is determined; means (20) for determining if the determined degree of understeer exceeds a threshold value; means (30) for saving the steering wheel torque value and steering wheel angle value when determined that a calculated drop in steering wheel torque (8) exceeds the threshold value; means for calculating a delta steering wheel torque (3), delta steering wheel angle (9) and updating the steering wheel angle (6) at the start of delta torque calculation; means for applying the calculated delta steering wheel torque (3) to the steering of the vehicle; means for calculating a driver intended steering wheel angle (5) and using it for controlling yaw stability control operations.

Description

technical field [0001] The present invention relates to a yaw stability control system for vehicles equipped with electric power steering. Furthermore, the invention relates to a method of controlling a yaw stability control system of a vehicle equipped with electric power steering. Background technique [0002] There are currently several vehicle control systems for increasing the driving ability of a driver of a vehicle. These control systems include anti-lock braking system (ABS), traction control system (TCS) and stability control. An example stability control system is an electronic stability control (ESC) system or sometimes called a yaw stability control (YSC) system. This type of system is also sometimes called an electronic stability program (ESC) system or a dynamic stability traction control (DSTC) system. [0003] Stability control systems are used to maintain controlled and stable vehicle operation for improved vehicle and passenger safety. Stability control...

Claims

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Application Information

Patent Timeline
17 Jul 2013
Publication
CN101565043B
IPC
B60W30/045; B60W10/20; B60W40/00; B62D6/00; B62D101/00; B62D113/00; B62D119/00; B60W30/02
CPC
B60W30/045; B62D6/008; B62D6/003; B60T8/1755
Inventors
约翰·赫尔登; 本杰特·杰考布森