High Stability And High Dynamic Electrical Brake System Drive

Aiming at the shortcomings of the current traditional brake system for vehicles,a high dynamic and high reliability all-electric brake method is proposed.The traditional brake system of the vehicle generally provides the brake boost by the method of providing pressure by the hydraulic oil and the vacuum pump,and has the disadvantages of complicated structure,low control precision,high cost,and troublesome maintenance.The system uses a high-performance permanent magnet synchronous motor as an electromechanical machine.The actuator of the actuator provides assistance to the brake system.The all-electric brake system is widely used in the military aerospace industry,but it has not been promoted in the automotive field.The driver designed by this system,as an idea for the future brake system of the vehicle,overcomes the above drawbacks and can significantly reduce the weight and volume of the brake system.1.The mathematical model of permanent magnet synchronous motor is constructed to realize SVPWM modulation algorithm.The system adopts vector control mode to convert the control of three-phase AC motor into the control of two-phase motor.Based on the traditional PID control,the fuzzy PID controller is designed.The PID control parameters are changed according to different working conditions to enhance the robustness of the system.2.The system uses two IPM power modules to build a power inverter to improve system redundancy and reliability.Compared to the traditional structure,the control difficulty increases,but the security is improved.According to the high control precision and small volume standard,the control board and the drive board of the drive are designed to be strictly examined in terms of device selection and PCB layout to ensure the realization of the functions of each module.3.In order to solve the problems of high nonlinearity,high dynamic response requirements and poor anti-interference ability of electric steering gear system,this paper proposes to optimize the PID parameters of motor control by using Tianniu search algorithm,and combine the vector control method of fuzzy algorithm to improve the dynamics of the system.Static response capability and improved anti-interference ability.In order to verify the effectiveness of the algorithm,the MATLAB is used to build the control model of the electric steering gear.The genetic algorithm is used to adjust the PID control parameters.The simulation results show that the system has a great improvement in dynamic response,static response and robustness.4.According to the simulation results,the software is used to implement the control algorithm of the system design,and the logic flow of each functional module is introduced in detail.5.The hardware test platform is built to test the effectiveness of the controller hardware and software.The test results show that the design scheme is feasible.Experiments show that the control system has good performance,achieves the established functions,meets the requirements of design indicators,and has a high reference for future product development.