Double linear motor energy-feeding active suspension actuator and control method thereof

A technology of active suspension and linear motor, applied in the field of vehicle dynamics, can solve problems such as failure-prone, thrust cannot complete the active force of the suspension, etc., to achieve the effect of ensuring work stability, enhancing adaptive performance, and good fault tolerance

Active Publication Date: 2020-02-04
XIAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current motor actuators of various suspension systems still have problems such as failures easily in the state of long-term load work, and the common three-phase linear motors have the problem that if a phase failure occurs during operation, the thrust generated cannot complete the main function of the suspension. power control problem

Method used

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  • Double linear motor energy-feeding active suspension actuator and control method thereof
  • Double linear motor energy-feeding active suspension actuator and control method thereof
  • Double linear motor energy-feeding active suspension actuator and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a dual linear motor fed active suspension actuator includes an actuator body and a control system, and is characterized in that the actuator body includes an actuator outer shell (2), a base ( 7), rod (10), six-phase flux-linkage linear motor and three-phase permanent magnet synchronous linear motor;

[0035]The three-phase permanent magnet synchronous linear motor comprises a primary permanent magnet (3) of the three-phase permanent magnet synchronous linear motor, a secondary permanent magnet (4) of the three-phase permanent magnet synchronous linear motor, a magnetic isolation material (6), and a secondary protective layer (16), the primary permanent magnet (3) of the three-phase permanent magnet synchronous linear motor is inlaid and installed in the outer casing (2) of the actuator, and the upper and lower ends of the primary permanent magnet (3) of the three-phase permanent magnet synchronous linear motor Magnetic isolation materials (6...

Embodiment 2

[0046] Such as image 3 As shown, a control method of a double linear motor feed type active suspension actuator, the method includes the following steps:

[0047] 1. Data collection and transmission;

[0048] 2. Calculation of the ideal active force under the control of endocrine compound PID;

[0049] 3. Real-time adjustment of the actuator.

[0050] Such as Figure 4 As shown, the calculation steps of the ideal active force under the control of the endocrine complex PID are as follows:

[0051] Step 1: The sprung mass acceleration sensor collects the sprung mass acceleration in real time According to the PID control strategy Get the preliminary ideal control force F i-1 , where e(t) is the measured value of sprung mass acceleration Difference from 0; K p is the proportional gain link coefficient, K i is the integral gain link coefficient, K d is the differential gain link coefficient;

[0052] Step 2: Calculate the endocrine control link according to the preli...

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PUM

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Abstract

The invention discloses a double linear motor energy-feeding active suspension actuator and a control method thereof. An actuator body comprises an actuator outer shell, a base, a rod, a six-phase flux linkage linear motor and a three-phase permanent magnet synchronous linear motor. The control system comprises an active control system and an energy recovery system. The invention also discloses anendocrine compound PID control method. The two linear motors in different structural forms are combined into a whole; active thrust of the suspension system is provided by the six-phase flux linkagelinear motor; the three-phase permanent magnet synchronous linear motor is in an energy-feeding state to recover vibration energy. Space is greatly compressed by integration of the two linear motors in different structural forms; meanwhile, energy feeding and active control are integrated; the vehicle suspension system is in an optimal vibration damping state while energy is recovered, and smoothness and operation stability of vehicles are improved.

Description

technical field [0001] The invention belongs to the technical field of vehicle dynamics, and in particular relates to a dual linear motor feed type active suspension actuator and a control method thereof. Background technique [0002] The suspension of the vehicle is an important part that can ensure the ride comfort and handling stability of the vehicle. It can elastically connect the frame and the axle, and attenuate the excitation transmitted to the vehicle body from uneven roads. At present, most of the suspensions used in vehicles are passive suspensions. Although they can effectively dampen vibrations, their stiffness and damping are fixed values ​​and cannot be adjusted according to road conditions. In addition, controllable suspension has begun to be applied to automobile suspension technology. At present, there are two main types of controllable suspension: active suspension and semi-active suspension. Active suspension can adjust the parameters of the suspension i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/015B60G17/018B60G17/019F16F15/00
CPCB60G17/015B60G17/018B60G17/01908F16F15/002B60G2800/20
Inventor 寇发荣景强强武江浩
Owner XIAN UNIV OF SCI & TECH
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