A vehicle stability control method for driving system with uncertainties

A stability control and uncertainty technology, applied in the direction of control devices, vehicle components, driver input parameters, etc., can solve problems such as vehicle operation influence, vehicle driving system uncertainty, etc.

Active Publication Date: 2019-12-06
JILIN UNIV
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Problems solved by technology

[0003] During the driving process of the vehicle, due to the inability to accurately know the actual load weight of the vehicle and the corresponding moment of inertia, there is uncertainty in the vehicle driving system, which has a great impact on the operation of the vehicle

Method used

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  • A vehicle stability control method for driving system with uncertainties
  • A vehicle stability control method for driving system with uncertainties
  • A vehicle stability control method for driving system with uncertainties

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[0037] specific implementation

[0038] The proposed technical solution will be further elaborated and described below with reference to the accompanying drawings.

[0039] The principle of vehicle stability control system is as follows figure 1 As shown, the present invention proposes a vehicle stability control method for a driving system with uncertainty, which is implemented according to the following steps:

[0040] 1. Real-time collection of effective information of vehicle driving status and identification of the friction coefficient of the road surface.

[0041] Collect the vehicle driving state information fed back by the on-board sensors, including the steering wheel angle signal yaw rate signal collected by the steering wheel angle sensor and the yaw rate signal at the center of the vehicle collected by the acceleration sensor. The German sensor detects the wheel speed information of the vehicle. The electromagnetic induction speed sensor is used to detect the spe...

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Abstract

A vehicle stability control method for a traveling system with uncertainties which Contains the following steps: Collecting vehicle driving state information, according to the two-degree-of-freedom model, expressing The uncertainties of the analytical system of the vehicle model as linear uncertain systems, Taking the deviation between the actual value and the expected value of the state quantityas the input of the robust optimization vehicle stability controller, obtaining the expected value of the control quantity required for vehicle stability by using the suboptimal control method, and distributing the tire force by the pseudo-inverse distribution method, and finally executing the tire force distribution result by the actuator.

Description

technical field [0001] The invention belongs to the technical field of vehicle active safety control, and provides a control method for a vehicle stability system, in particular to a vehicle stability control method due to the uncertainty of the vehicle mass and moment of inertia in the driving system. Background technique [0002] In recent years, active safety control of vehicles has attracted much attention. Especially in the context of intelligent driving and automatic driving of vehicles, the vehicle stability control system has greatly improved the safety performance of vehicles through continuous development. Vehicle stability control system mainly includes yaw stability system, active roll stability control and integrated stability control system. The yaw stabilization system is mainly a stability control system that controls the yaw behavior of the vehicle and prevents the vehicle from sliding. Active Roll Stability Control is a stability control system that preven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W50/00
CPCB60W50/00B60W2050/0002B60W2050/0028B60W2050/0075B60W2520/10B60W2520/125B60W2520/28B60W2540/18
Inventor 王德军梁晓娜丁健楠杨千惠谢宁宁史德伟王丽华
Owner JILIN UNIV
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