Active stabilizer bar control method, device, equipment and medium

A technology of active stabilizer bar and control method, applied in the directions of transportation and packaging, elastic suspension, interconnection system, etc., can solve the problems of poor agility and maneuverability of vehicles to avoid obstacles, poor safety and comfort of recovery routes, etc. Agility and mobility, improved safety and comfort

Pending Publication Date: 2022-04-01
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing technology is unable to perform active stabilizer bar control when the vehicle enters a curve (avoiding obstacles) or when the vehicle exits a curve (recovering the route), resulting in poor agility and maneuverability of the vehicle when avoiding obstacles. Moreover, the safety and comfort of returning to the route after the vehicle avoids the obstacle is poor

Method used

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  • Active stabilizer bar control method, device, equipment and medium
  • Active stabilizer bar control method, device, equipment and medium
  • Active stabilizer bar control method, device, equipment and medium

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Figure 1A It is a flow diagram of an active stabilizer bar control method provided by Embodiment 1 of the present invention. This embodiment is applicable to the active stabilizer bar control of the vehicle in the curve control mode, especially for judging whether the vehicle is in curve control mode, if so, the distribution of the roll stiffness of the front axle of the vehicle and the roll stiffness of the rear axle of the vehicle, the method may be performed by an active stabilizer bar control device, the device may be implemented by hardware and / or software, The method specifically includes the following steps:

[0051] S110. Acquire driving state data of the target vehicle, and judge whether the target vehicle is in a curve control mode based on the driving state data.

[0052] Wherein, the driving state data may be vehicle speed data and lateral acceleration data of the target vehicle during driving. Specifically, the driving state data can be used to determine wh...

Embodiment 2

[0075] Figure 2AIt is a schematic flowchart of an active stabilizer bar control method provided by Embodiment 2 of the present invention. On the basis of the above embodiments, in this embodiment, optionally, the vehicle target roll stiffness and target understeer gradient The coefficient determines the roll stiffness of the front axle before the turn and the roll stiffness of the rear axle after the turn, including: determining the roll stiffness corresponding to the target vehicle based on the current lateral acceleration and the pre-built turn-in proportional coefficient mapping table Proportional coefficients, wherein the turn-in proportional coefficient mapping table includes each preset lateral acceleration and a proportional coefficient corresponding to each preset lateral acceleration; based on the turn-in roll stiffness proportional coefficient, the target understeer The gradient coefficient and the target roll stiffness of the whole vehicle determine the roll stiffn...

Embodiment 3

[0100] image 3 It is a structural schematic diagram of an active stabilizer bar control device provided by Embodiment 3 of the present invention. This embodiment is applicable to the active stabilizer bar control of the vehicle in the curve control mode, and is especially suitable for judging whether the vehicle is in the curve control mode. mode, if so, the distribution of the roll stiffness of the front axle of the vehicle and the roll stiffness of the rear axle of the vehicle, the device specifically includes: a mode judgment module 310, a vehicle roll stiffness acquisition module 320 and a roll stiffness distribution module 330.

[0101] A mode judging module 310, configured to acquire driving state data of the target vehicle, and judge whether the target vehicle is in a curve control mode based on the driving state data;

[0102] The vehicle roll stiffness acquisition module 320 is configured to determine the target vehicle roll stiffness of the target vehicle based on ...

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Abstract

The embodiment of the invention discloses an active stabilizer bar control method and device, equipment and a medium. According to the method, driving state data of a target vehicle is obtained, whether the target vehicle is in a curve control mode or not is judged based on the driving state data, and when the target vehicle is in the curve control mode, the whole vehicle target roll stiffness of the target vehicle is determined according to the current lateral acceleration and the target roll gradient of the target vehicle; and further determining the roll stiffness of the front axle and the roll stiffness of the rear axle according to the target insufficient steering gradient coefficient of the whole vehicle, namely, performing roll moment distribution on the front axle and the rear axle of the vehicle in the curve control mode, so that active stabilizer bar control of the vehicle in the curve control mode is realized. The agility and maneuverability of the vehicle during obstacle avoidance are improved, and the safety and comfort of route recovery after the vehicle avoids the obstacle are improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicle control, and in particular to an active stabilizer bar control method, device, equipment and medium. Background technique [0002] With the development of electronic technology, more and more luxury sports cars have been equipped with active stabilizer bar systems. The general purpose of equipping the active stabilizer bar system is to make the vehicle change the roll angle of the vehicle when the vehicle is driving on a curve, so as to improve the stability and ride comfort of the vehicle. [0003] However, the existing technology is unable to perform active stabilizer bar control when the vehicle enters a curve (avoiding obstacles) or when the vehicle exits a curve (recovering the route), resulting in poor agility and maneuverability of the vehicle when avoiding obstacles. Moreover, the safety and comfort of the vehicle returning to the route after avoiding the obstacle ar...

Claims

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Application Information

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IPC IPC(8): B60G17/016B60G21/055
CPCB60G17/016B60G21/055
Inventor 王念强陈磊余景龙彭大祥潘迪许晓波王晓燕郝文权李耀超赵浩兴
Owner CHINA FIRST AUTOMOBILE
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