Research On Vehicle Matching And Motor Controlling System For Hybrid Electric Vehicle

As the reduction of resource of oil and the enhance of people's environmental protection, the development of Electric Vehicle is becoming more and more important,and our country will also join in this queue.Under the circumstance that the battery technology has not got to big progress,the weakness of short Mileage has become the key bottleneck that restricts the development of Electric Vehicle.At present,the Hybrid Electrical Vehicle play the Mainstream in the automobile industry.The application of the technology of computer simulation in Electrical Vehicle has a great meaning,which not only reduce the cost of research explode but also shorten the exploiture period greatly,and at the meantime the system of the driving system of motor is one of the key technology of the Electric Vehicle,so the research on which means a lot.First,the paper studied the status of the Electric Vehicle home and abroad,and then analysed the theories on the Hybrid Electrical Vehicle.And under this precondition,the paper did some research on the matching of the Electric Vehicle and did some choose on some key parts,based on the special requirements for the vehicle on Olympic village.Secondly,on the base that has analyzed the special requirements for the vehicle in the Olympic village and the principle of the system parts of Hybrid Electrical Vehicle in series, this paper sets down the control strategies,and sets up some the system simulation model on the Hybrid Electrical Vehicle in using by Olympic village,by using MATLAB/Simulation. The simulation results suggest that the control strategies are feasible,the parameters are proper,and the Electrical Vehicle can meet the requirements for Olympic village.Again,on the basis that has analyzed the brushless DC motor drive system,this paper presented a singlechip for the control of the core electric drive controller,and chose integration with A/D and PWM output suitable motor control as a function of 80C196KC SCM Microcontrollers.And the the brushless motor control was realized by the three-phase inverter bridge integrated Driver IC of the GRID and MOSFET.The software design of the control system adopts software filtering technology,while using Incremental PID control algorithm for the closed-loop speed control.The practical Experiments show that the hardware of the motor drive system and software work stably,reliably and it can meet the design requirements.To further study,the hybrid electric vehicle motor drive system laid the foundation.