Research on Nonlinear Driving Control and Driving Force Calibration of Pure Electric Vehicle

2014 ◽  
Vol 620 ◽  
pp. 297-305
Author(s):  
Hong Bo Zhou ◽  
Jian Bo Cao ◽  
Ze Xin Zhou ◽  
Tao Wang ◽  
Li Li Jin ◽  
...  
Keyword(s):  
Electric Vehicle ◽  
Driving Force ◽  
High Efficiency ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Calibration Method ◽  
Battery Life ◽  
Accelerator Pedal ◽  
Force Calibration ◽  
Calibration Techniques

According to the main problems of nonlinear driving control and driving force calibration of pure electric vehicle, based on the research of permanent magnet synchronous motor control method, on the vehicle's driving force calibration techniques were studied, from the high efficiency and energy saving analysis of necessary driving force calibration, designed a new driving force calibration method, and drew the control curve of the accelerator pedal opening and the speed and the motor torque relationship between the three, and finally to pure electric self-developed to test platform for automotive related experiments. The experimental results show that, in the vehicle driving process, the driving force calibration technique compared with the previous calibration has better performance, while no obvious change of acceleration performance, the current value of the initial acceleration phase have been greatly decreased, could make the vehicle run more energy efficient, extended battery life and vehicle driving mileage.

Direct Torque Control of Interior Permanent Magnet Synchronous Motors Based on Position Sensorless Control

2013 ◽  
Vol 756-759 ◽  
pp. 627-631
Author(s):  
Zhao Jun Meng ◽  
Rui Chen ◽  
Yue Jun An
Keyword(s):  
Permanent Magnet ◽  
Electric Vehicle ◽  
Control Method ◽  
Sensorless Control ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Torque Control ◽  
Permanent Magnet Synchronous Motors ◽  
Interior Permanent Magnet ◽  
Position Sensorless

The position sensorless control method based on direct torque control was carried out aiming at the interior permanent magnet synchronous motor (IPMSM) in this paper. To the consideration of electric vehicle space is limited, in order to reduce the controller size to save space, this paper studied the sensorless control. Meanwhile, in order to improve the control rapidity as much as possible of the electric vehicle, take direct torque control as a control method of the driving motor. Finally, designed the sensorless direct torque controller and studied its simulation. Simulation results show that the control system have good dynamic and static characteristics in the full speed range.

Modeling and Simulation of the Marine Permanent Magnet Synchronous Propulsion Motor with Direct Torque Control System

2013 ◽  
Vol 655-657 ◽  
pp. 612-619
Author(s):  
Chun Lai Zhang ◽  
Jin Nan Zhang
Keyword(s):  
Permanent Magnet ◽  
Electric Propulsion ◽  
High Efficiency ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Direct Torque Control ◽  
Torque Control ◽  
Switching Frequency ◽  
Electric Ship ◽  
Space Vectors

New quick-response and high efficiency direct torque control method of Permanent magnet synchronous motor is proposed. The new method is realized by optimizing the switching frequency of the inverter and choosing the most fit voltage space vectors. Modeling and simulating such marine electric propulsion system using Matlab/Simulink is performed. The starting-up and dynamic simulation results prove that this method can be fully used onboard the future all electric ship.

scholarly journals Optimal Velocity Control for a Battery Electric Vehicle Driven by Permanent Magnet Synchronous Motors

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
Dongbin Lu ◽  
Minggao Ouyang ◽  
Jing Gu ◽  
Jianqiu Li
Keyword(s):  
Permanent Magnet ◽  
Electric Vehicle ◽  
Information Technologies ◽  
High Efficiency ◽  
Permanent Magnet Synchronous Motor ◽  
Minimum Energy ◽  
Maximum Efficiency ◽  
Optimal Velocity ◽  
Minimum Energy Consumption ◽  
Economic Operation

The permanent magnet synchronous motor (PMSM) has high efficiency and high torque density. Field oriented control (FOC) is usually used in the motor to achieve maximum efficiency control. In the electric vehicle (EV) application, the PMSM efficiency model, combined with the EV and road load system model, is used to study the optimal energy-saving control strategy, which is significant for the economic operation of EVs. With the help of GPS, IMU, and other information technologies, the road conditions can be measured in advance. Based on this information, the optimal velocity of the EV driven by PMSM can be obtained through the analytical algorithm according to the efficiency model of PMSM and the vehicle dynamic model in simple road conditions. In complex road conditions, considering the dynamic characteristics, the economic operating velocity trajectory of the EV can be obtained through the dynamic programming (DP) algorithm. Simulation and experimental results show that the minimum energy consumption and global energy optimization can be achieved when the EV operates in the economic operation area.

Discussions on Dynamic Way to Develop Electric Vehicle Control Method

2012 ◽  
Vol 220-223 ◽  
pp. 1034-1039
Author(s):  
Shi Rong Yan ◽  
Zhen Hai Su ◽  
Shi Zhong Li
Keyword(s):  
Electric Vehicle ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Current Loop ◽  
Combined System ◽  
Traction Control ◽  
Field Weakening ◽  
Feed Forward Control ◽  
Dc Motors ◽  
Maximum Torque Per Ampere

Two different car traction control methods were studied and some dynamic characteristics were found. Firstly, a new electric rear driving car with two DC motors driving independently is controlled by a combined system. The combined system consists of a feed-forward control, a feedback control and a SRC. Secondly, a built-in permanent magnet synchronous motor is selected as its driving motor. A motor driving system with a current loop and a speed loop was developed. The current loop consists of maximum torque per ampere control and field weakening control. Some simulation work was done based on MATLAB/Simulink software. The simulation study showed the control system can make the electric vehicle work well.

scholarly journals A novel MTPA and flux weakening method of stator flux oriented control of PMSM

2021 ◽  
Author(s):  
Yuliang Wen ◽  
Hanfeng Zheng ◽  
Fang Yang ◽  
Xiaofan Zeng
Keyword(s):  
Control Strategy ◽  
High Efficiency ◽  
Control Method ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Torque Ripple ◽  
Speed Range ◽  
Low Torque ◽  
Maximum Torque Per Ampere ◽  
Flux Weakening

Abstract Permanent magnet synchronous motor (PMSM) has the advantages of high efficiency, high power density and high reliability. It has been widely used in electric vehicles, rail transit, industrial transmission and other fields. Compared with the traditional PMSM control strategy, the Indirect stator-quantities control (ISC) of low torque ripple induction motor has high dynamic response performance in the whole speed range, with high stability and strong security. However, due to the inherent characteristics of PMSM, there are still some difficulties in applying ISC strategy, such as solving the load angle corresponding to the current torque, realizing the maximum torque per ampere (MTPA) control and flux weakening control method in the stator field oriented control algorithm of PMSM. In this paper, theoretical analysis and discussion are carried out for the above difficulties, and an indirect stator vector control (ISC) method for PMSM is proposed. Finally, combined with the electric drive application platform of electric vehicle, the simulation and experimental results verify that the proposed ISC control strategy of PMSM also has good dynamic and steady-state performance in the whole speed range.

Research on Electronic Differential Control Method of Electric Vehicle with Motorized Wheels Based on Adhesion Coefficient

2013 ◽  
Vol 706-708 ◽  
pp. 950-956
Author(s):  
Ying Chun Long ◽  
Li Fu Li
Keyword(s):  
Electric Vehicle ◽  
High Speed ◽  
Control Method ◽  
Permanent Magnet Synchronous Motor ◽  
Adhesion Coefficient ◽  
Set Up ◽  
Differential Control ◽  
Six Degree Of Freedom ◽  
Vehicle Dynamic Model ◽  
Differential Control Method

This paper presents an electronic differential control strategy based on equal adhesion coefficient, it makes electric vehicle (EV) with two dual-motorized-wheels achieve differential by distributing and controlling the driving torque. First, six degree-of-freedom (6-DOF) vehicle dynamic model was set up and electronic differential system based on permanent magnet synchronous motor (PMSM) vector control was designed, then the simulation of differential control method with Matlab/Simulink was performed. The results show that when the high-speed vehicle steering in the low road adhesion coefficient, the electronic differential control method based on the principle of equal adhesion coefficient can keep two driving wheels’ adhesion coefficient utilization ratio the same, avoiding single wheel skid and improving the steering stability.

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