Enhanced type automobile ABS system for improving vehicle turning brake lateral stability

An ABS system and stability technology, applied in the direction of brakes, etc., can solve limited and other problems, achieve the effect of simple and effective system, improve handling stability, and improve active safety performance

Inactive Publication Date: 2008-12-17
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] As we all know, the ABS system only works when the driver brakes. If you want to improve the ABS system to partially replace the role of the ESP system, you need to analyze the proportion of whether the driver brakes in the driving condi

Method used

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  • Enhanced type automobile ABS system for improving vehicle turning brake lateral stability
  • Enhanced type automobile ABS system for improving vehicle turning brake lateral stability
  • Enhanced type automobile ABS system for improving vehicle turning brake lateral stability

Examples

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Example Embodiment

[0028] The specific content of the present invention will be described in detail below in conjunction with the embodiments shown in the drawings.

[0029] 1. Calculation of the driver's expected driving path

[0030] The car itself is a complex non-linear system. Since the vehicle's two-degree-of-freedom model ignores the effects of suspension, steering and other systems, it directly uses the front wheel angle as input. The steady-state response of the vehicle's two-degree-of-freedom model can better reflect the driver. The expected path of the vehicle, so:

[0031] ( k 1 + k 2 ) v u + 1 u ( a k 1 - b k 2 ) ...

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Abstract

The invention relates to a reinforced vehicles ABS system for improving the turning-breaking lateral stability, which belongs to the braking locking-prevention system for improving the turning-braking lateral stability of vehicles; basing on the angle of automobile dynamics, with the consideration of the driving intentions of drivers, the system aims at improving the lateral stability of the vehicles under braking-turning working condition. By a vehicle linear two freedom degree model, the system estimates the driving intentions of drivers, and with the consideration of the deviations between the actual motion states of the vehicles and the expected motion states of the drivers under the working condition of turning-braking, the system judges the tendency of overturning or deficient turning of the vehicles and changes dynamically the ABS sliding rate work intervals between lateral wheels and medial wheels under the condition that the braking efficiency of vehicles is ensured, therefore the produced difference of braking force can lead the vehicles to a stable status rapidly, thus avoiding the dangerous working conditions of whipping and sideslip, and the like, and greatly improving the lateral stability of the vehicles under the working condition of turning-braking.

Description

Technical field: [0001] The invention relates to a braking anti-lock braking system for improving the lateral stability of vehicle turning braking. Background technique: [0002] With the improvement of road traffic conditions and the advancement of automobile technology, the speed of vehicles continues to increase, the density of traffic flow is becoming more and more serious, and people's requirements for active safety performance of vehicles are increasing day by day. In many traffic accident reports, the cause of the accident is often stated in this way-vehicle skidding out of control. According to research and analysis, when the vehicle speed is 80km / h-100km / h, 40% of the driving accidents are related to the vehicle skidding out of control, and when the vehicle speed is above 160km / h 100% of traffic accidents are related to the sideslip out of control of the vehicle. It can be seen that how to improve the lateral stability of the vehicle under extreme conditions is of ...

Claims

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Application Information

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IPC IPC(8): B60T8/1755B60T8/1761
Inventor 高镇海管欣郭健董益亮袁昌碧谯艳娟
Owner JILIN UNIV
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