Control method for vehicle running stability

A vehicle driving and control method technology, which is applied in the direction of control devices, vehicle accessories, vehicle components, etc., can solve the problems that the stability cannot reduce the performance of the anti-deadlock braking system and traction control system, and the adverse effects of vehicle stability.

Inactive Publication Date: 2003-09-03
HL MANDO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In addition, controlling vehicle stability does not degrade the performance of the anti-lock braking system and traction control system
Similarly, antilock braking systems and traction control systems must not adversely affect vehicle stability

Method used

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  • Control method for vehicle running stability
  • Control method for vehicle running stability
  • Control method for vehicle running stability

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0018] The present invention is characterized by applying braking force to the inner rear wheel when understeer (push head) occurs when turning and the vehicle deviates outward from the desired driving route, and when oversteer (flick) occurs that the vehicle's turning radius Applies braking force to the outer front wheels to prevent the vehicle from steering uncontrollably when rapidly decreasing and destabilizing the vehicle due to an undesired increase in vehicle yaw rate.

[0019] figure 1 It is a block diagram of a vehicle stability control system according to the present invention. like figure 1 As shown, the driving stability control system of the present invention includes a measuring device 10 , an electronic control device 20 , a brake control device 30 , an engine torque control device 40 , an ABS control device 50 and a TCS control device 6...

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PUM

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Abstract

Disclosed herein is a method of controlling traveling stability of a vehicle. In the present invention, a driver's desired yaw rate is estimated using a steering wheel angle and a reference speed of the vehicle while turning. The condition of a road surface where the vehicle is traveling on is judged by comparing lateral acceleration of the vehicle, estimated using the estimated yaw rate and a reference vehicle speed, with lateral acceleration actually measured by a lateral acceleration sensor. A driver's desired reference yaw rate is determined according to the judged road surface condition. It is determined whether a vehicle is understeered or oversteered by comparing the determined reference yaw rate with an actual yaw rate measured by a yaw rate sensor. According to the determined result, braking force and driving force of the vehicle are controlled, thus obtaining excellent vehicle stability.

Description

(1) Technical field [0001] The invention relates to a control method for vehicle running stability, in particular to a control method for vehicle running stability which achieves vehicle running stability by controlling braking force and driving force when the vehicle is understeering or oversteering. (2) Background technology [0002] In general, the Anti-lock Brake System (ABS) prevents wheel lock by properly controlling the brake pressure applied to the wheels according to the slip rate calculated based on the wheel speed. The Traction Control System (TCS) is used to control the driving force of the engine to prevent excessive slippage when the vehicle is activated suddenly or when changing gears. [0003] The ABS and TCS showed good performance when the vehicle was driving on a straight road. However, when the vehicle turns while driving, understeer (plowing) occurs to cause the vehicle to lean excessively outward, or oversteer (spinning-out) occurs to cause the vehicle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60W10/04B60K31/12B60T8/00B60T8/175B60T8/1755B60T8/1763B60T8/1764B60W10/18B60W30/00B60W30/02B60W30/045F02D29/02
CPCB60T8/1769B60T2210/22B60T2210/12B60T8/1755B60T2230/04B60T2270/302B60K31/12
Inventor 金东信
Owner HL MANDO CORP
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