Road surface self-adaptive semi-active suspension control method and system

Abstract

The invention relates to a road surface self-adaption semi-active suspension control method and system. The method comprises the following steps that firstly, road surface unevenness parameters of a current road surface are calculated according to operation parameters of a controlled automobile; step 2, calculating an equivalent damping coefficient optimization value of the adjustable damping shock absorber according to the road surface unevenness parameter calculated in the step 1; and 3, adjusting the current or electromagnetism of a driving control unit of the adjustable damping shock absorber according to the equivalent damping coefficient optimization value, calculated in the step 2, of the adjustable damping shock absorber. The system comprises a road surface unevenness parameter detection module, an adjustable damping shock absorber equivalent damping coefficient optimal value calculation module and an adjustable damping shock absorber optimal current or electromagnetic output module. The method can adapt to the road surface unevenness coefficient and the frequency index, introduces the weight of the riding comfort and the driving safety of the whole vehicle in the whole frequency domain and under the road condition, and strengthens the corresponding relation between the road surface excitation frequency band interval and the suspension response frequency band interval.

Description

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AI Technical Summary

Benefits of technology

This technology described in this patented describes an improved way that vehicles ride on roads without getting stuck due to poor traction caused by uneven surfaces such as rocks or snow covered ground during winter months when they get wet from rainwater. By measuring these differences along their entire range of frequencies, it becomes possible to determine how well each part of the car's body fits together properly. Additionally, the use of specific parameters like resonance point temperature and spring constant allows us to predict what parts will have been affected if there were any issues later. Overall, this innovation improves the performance and efficiency of active suspen systems while reducing costs associated with manufacture.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the design of suspended systems used in vehicles while also addressing their impact upon human health or environmental concerns due to increased emissions from conventional sources like gasoline engines.

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