Car active suspension electromagnetic actuator anti-saturation composite controller and construction method thereof

A technology of electromagnetic actuator and composite controller, which is applied in the direction of suspension, elastic suspension, vehicle components, etc., can solve the problems of large workload and system dynamic characteristic limitation, and achieve the suppression of saturation phenomenon, which is beneficial to engineering realization, Excellent control effect

Active Publication Date: 2019-07-19
JIANGSU UNIV
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Problems solved by technology

The disadvantage of this control method is also obvious. There are multiple PI controllers in the entire control system, and at least six controller parameters need to be adjusted, which will

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  • Car active suspension electromagnetic actuator anti-saturation composite controller and construction method thereof
  • Car active suspension electromagnetic actuator anti-saturation composite controller and construction method thereof
  • Car active suspension electromagnetic actuator anti-saturation composite controller and construction method thereof

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[0023] Such as figure 1 As shown, the anti-saturation composite controller 2 of the electromagnetic actuator of the automobile active suspension of the present invention is composed of a sudden load compensation controller 21, a state feedback controller 22, a voltage decoupling controller 23, a controller parameter optimization module 3, and a voltage limiting control It consists of a device 24 and is connected in series to the input end of the electromagnetic actuator 1. Electromagnetic actuator 1 uses voltage u d , U q As input, with speed v, current value i d , I q For output.

[0024] The controller parameter optimization module 3 uses the output v, i of the electromagnetic actuator 1 d , The reference speed v output by the speed given module 41 ref , Reference current output by current given module 42 As input, its output is the optimal controller gain K best , The optimal controller gain K best Output to the state feedback controller 22.

[0025] The sudden load compensa...

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Abstract

The invention discloses a car active suspension electromagnetic actuator anti-saturation composite controller and a construction method thereof, and belongs to the field of vehicle chassis control. The construction method comprises the steps that a mutant load compensation controller, a state feedback controller and a voltage decoupling controller are constructed correspondingly, a controller parameter optimization module is adopted, the global optimal controller gain of the state feedback controller is obtained through a grey wolf optimization algorithm, the controller parameter optimizationmodule and the state feedback controller are in series connection, and the state feedback controller, the mutant load compensation controller and the voltage decoupling controller are in parallel connection and then are in series connection with a voltage limiting controller to constitute the anti-saturation composite controller. The response speed of an active suspension is increased, under the premise of ensuring safety operation of a motor, the maximum voltage supplied to the motor can be effectively improved, the saturation phenomenon of the controller is inhibited, and the adjusting timeis shortened.

Description

technical field [0001] The invention belongs to the field of vehicle chassis control, in particular to a structure and a construction method of a composite controller of an active suspension electromagnetic actuator of a vehicle. Background technique [0002] As an indispensable part of the car, the suspension not only transmits force and moment, maximizes the friction between the tire and the road surface, and provides good steering stability, but also buffers the impact transmitted to the body from the uneven road surface. Force, so that the car can run smoothly. At present, most of the suspensions are passive suspensions, the stiffness and damping are determined according to experience or optimal design methods, and their performance cannot be changed or adjusted according to changes in external signals; The vibration energy caused by the excitation is dissipated in the form of heat, resulting in energy loss. Active suspension can be actively adjusted according to exter...

Claims

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Application Information

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IPC IPC(8): B60G17/015B60G17/0165
CPCB60G17/0152B60G17/0165B60G2600/73B60G2800/162B60G2800/20
Inventor 孙晓东胡昌昌陈龙周卫琪杨泽斌李可
Owner JIANGSU UNIV
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