The Seamless Gear Shifting Control for Pure Electric Vehicle with 2-speed Inverse-AMT

This article deals with a 2-speed inverse automated manual transmission (I-AMT). The design of this transmission permits seamless gear shifting. In order to make the transmission output torque change smoothly during shift process, a control method is put forward. The control method contains a linear feedforward control for motor and clutch during the shift torque phase and a PID control for motor during the inertia phase. The principles of the control system are confirmed through test on an AMESim simulation model of the transmission system. The simulation results indicate that the control algorithm of the transmission system can improve the ride comfort and power performance of pure electric vehicle.