Adjustable damping feedback energy suspension system with driving behavior prediction model and control method of adjustable damping feedback energy suspension system

Abstract

The invention relates to an adjustable damping feedback energy suspension system with a driving behavior prediction model and a control method of the adjustable damping feedback energy suspension system. A hydro-pneumatic spring comprises a hydro-pneumatic spring main body, a feedback energy mechanism and a damping force control mechanism. An electronic control unit is connected with the damping force control mechanism, a traffic environment data acquisition module and a driving behavior data acquisition module. The traffic environment data acquisition module is used for judging whether other vehicles exist around a self vehicle or not and collecting the distance between the self vehicle and the front vehicle, the distance between the self vehicle and the rear vehicle, speed information of the front vehicle and speed information of the rear vehicle. The driving behavior data acquisition module is used for acquiring the horizontal rotating angle of the head of a driver in the driving process, the treading stroke and the frequency of an accelerator pedal and the treading stroke and the frequency of a brake pedal. The damping force control mechanism is used for adjusting the damping coefficient of the hydro-pneumatic spring. The feedback energy mechanism is used for recycling vibration energy of the vehicle in the running process. Meanwhile, according to the driving behavior prediction model, a suspension can predict the driving behavior in advance and adjust performance parameters in time according to the traffic environment so that the driving smoothness and the operating stability can be improved.

Description

technical field [0001] The invention relates to a vehicle, in particular to an energy-feeding suspension and a control method that can predict upcoming driving behaviors and automatically adjust performance parameters according to the traffic environment. Background technique [0002] Suspension, as the connecting part of the force transmission between the car frame and the axle, its function is to transmit the force and moment between the wheel and the frame, and buffer the impact caused by the uneven road surface, so as to improve the ride comfort and operation stability of the vehicle sex. [0003] Because the parameters of the passive suspension cannot be adjusted, it can only ensure that the vehicle has good shock absorption performance under certain working conditions. Although the parameters of active suspension can be adjusted, it has not been effectively promoted because of its large energy consumption. [0004] Aiming at the problems of passive suspension and act...

AI Technical Summary

Problems solved by technology

The piezoelectric power generation type damping adjustable oil-air suspension disclosed in the patent number 201310171296.9 uses piezoelectric materials for energy recovery, and the energy conversion efficiency is not high

And no specific algorithm for adjusting the damping coefficient is given, ignoring the requirements of different driving behaviors on the suspension damping coefficient

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