Research on Motor Control of P2.5 Hybrid Vehicle

The current control and mode control of permanent magnet synchronous motor in the P2.5 hybrid system is analyzed to achieve good stability and robustness. The current control which includes the current vector control, the MTPA, flux weakening control, PI current control and SVPWM control. The motor mode contains the initialization mode, the normal mode, the fault mode, the active discharge mode, and the power down mode. To minimize the jerk in the vehicle that arises when motor torque is going from negative to positive or vice versa, the motor anti-jerk control is introduced. The anti-shuffle is defined to minimize the driveline oscillations that occurs in an electric vehicle due to the low stiffness between the wheels and the electric machine. Finally, the real vehicle test is performed and the motor control design is proved successfully.