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Complete vehicle coordination control method and system
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A technology for coordinating the control system and the entire vehicle, which is applied to vehicle components, elastic suspensions, transportation and packaging, etc., and can solve problems such as failure to consider the coupling vibration of the entire vehicle suspension, and difficulty in achieving optimal control effects.
Pending Publication Date: 2022-06-17
彭志召
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Most of the current control methods aim at the vertical control of the suspension of a single wheel, and completely independently control the four (or mor
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Abstract
The invention relates to a vehicle coordination control method and system, and belongs to the technical field of vehicle control. Whether the coupled vibration of the whole vehicle needs to be considered and the type of the coupled vibration needing to be considered are judged by taking whether the roll angle acceleration is within the preset roll angle acceleration threshold value or not and whether the pitch angle acceleration is within the preset pitch angle acceleration threshold value or not as judgment references; when the pitch angle acceleration or the roll angle acceleration of the vehicle body is not within the set threshold value, the coupling quantity influence is large, and the pitch vibration and the roll vibration of the vehicle body are restrained through main control based on torque damping control. When the pitching angle acceleration and the roll angle acceleration of a vehicle body are within set threshold values, the influence of the coupling amount is ignored, the suspension of the whole vehicle is regarded as being composed of four independent sub-suspensions, and each sub-suspension independently implements vertical control, so that pitching, roll and vertical vibration of the vehicle during running are effectively restrained, coordinated control over the whole vehicle is achieved, and the service life of the whole vehicle is prolonged. The riding comfort of the vehicle is obviously improved, and the control effect is good.
Description
technical field [0001] The invention relates to the technical field of vehicle control, in particular to a vehicle-wide coordinated control method and system for vehicle suspension damping. Background technique [0002] The semi-active suspension of the vehicle can change the suspension damping in real time according to the vibration of the vehicle and the ups and downs of the road surface, thereby significantly improving the ride comfort and operating stability of the vehicle. It has the advantages of low control energy consumption, good robustness, and high cost performance. It is a hotspot of research and application in the field of vehicle engineering. Most of the current control methods aim at the vertical control of the suspension of a single wheel, and completely independently control the four (or more) sub-suspensions of the vehicle, without considering the coupling vibration of the vehicle suspension, the control effect Difficult to achieve the best. Contents of ...
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Application Information
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