Experiment Research of ISG Motor Locked Rotor Temperature Rise for Electric Vehicle

In order to satisfy the need of measurement,a dynamometer for integrated starter and generator(ISG)used in electric vehicles was developed.The dynamometer adopted AC motor to realize drive and load function,which could realize the real-time measurement and data store,and the dynamic state of the dynamometer was well.Based on the theory of temperature rise,the experiments of temperature rise with the conditions of 56 N·m locked rotor torque and 18.8 A locked rotor current,the conditions of constant torque at 1 000 r/min and 72 N·m,and the conditions of constant power at 4 000 r/min and 33 N·m were done separately.The temperature rise of motor system were 37 K,69.04 K,58.25 K separately.The results showed that the motor system according with the design.