Compound damping adjustable self-energy-supply type active suspension actuator and control method thereof

Abstract

The invention discloses a compound damping adjustable self-energy-supply type active suspension actuator. A system of the actuator comprises an actuator body and an actuator control system. The actuator body comprises a working cylinder, an oil storage cylinder, an upper sealing end cover, an electromagnetic compression valve, a compensation valve, a hollow piston rod, a direct current brushless motor, a piston, an electromagnetic rebound valve and a circulating valve; the actuator control system comprises the actuator controller and an electric energy storage circuit; the input end of the actuator controller is connected to a unsprung mass speed transmitter and a sprung mass speed transmitter; the electric energy storage circuit comprises a rectifier, a first energy fed branch and an energy fed adjusting circuit connected to the rectifier as well as a second energy fed branch and a third energy fed branch connected to the energy fed adjusting circuit in circuit; the invention also discloses a control method of the compound damping adjustable self-energy-supply type active suspension actuator. The actuator disclosed by the invention is fast in active control respond speed, preciseto control, more in electric energy generated by fed energy, high in energy conversion ratio and wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of vehicle damping devices, and in particular relates to a composite damping adjustable self-energy active suspension actuator and a control method thereof. Background technique [0002] The suspension system is an important part of the car, which determines the smoothness and handling stability of the vehicle. The current automobile suspension is mainly divided into passive suspension, semi-active suspension and active suspension. Compared with passive suspension and semi-active suspension, active suspension can make the vehicle have better ride comfort and handling stability, but its shortcomings of high energy consumption have not been effectively resolved so far, and it is difficult to popularize. Controllable suspensions often occupy a large installation space, which limits the application of controllable suspensions to a large extent. For example, the Chinese patent "One Vehicle Integral Inertial Sus...

AI Technical Summary

Problems solved by technology

Compared with passive suspension and semi-active suspension, active suspension can make the vehicle have better ride comfort and handling stability, but its shortcomings of high energy consumption have not been effectively resolved so far, and it is difficult to popularize. Controllable suspensions often occupy a large installation space, which limits the application of controllable suspensions to a large extent.

For example, the Chinese patent "One Vehicle Integral Inertial Suspension" with the application number 201310560418.3 integrates the suspension system, but it cannot realize the active control of the vehicle, and it is difficult to improve the ride comfort and handling stability of the vehicle.

Another example is the Chinese patent "A Vibration Damping Device That Can Generate Electric Energy and Actively Control Energy Feedback" with the application number CN201520148667.6, which realizes the active control of the suspension system and the recovery of vibration energy, but it does not carry out structural integration and installation. takes up a lot of space

Images