| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controller for controlling a motor without deterioration in steering caused by a difference in revolution speed at turning of the vehicle with respect to an electric vehicle with the induction motors connected to right and left driving wheels and driving the induction motor with a common inverter. SOLUTION: When a vehicle is turned by driving force, a revolution speed difference ΔNs between revolution speed Nin of an induction motor of an inner wheel and revolution speed Nout of an induction motor of an outer wheel is calculated. A control curve is determined by the revolution speed difference ΔNs and output torque T. A primary current according to the control curve is determined, and a sliding speed Ns0 is calculated from the control curve. A driving current revolution speed NI is calculated from the sliding speed Ns0 and the revolution speed Nout. The induction motor is put under sliding-speed control at the driving current revolution speed NI and a primary current value I as a controlling target, the same torque as the outer wheel is generated in the inner wheel, and a deterioration in steering can be prevented. |
