To provide a drive system of an electric vehicle that can reduce the occurrence of the slippages and slidings of the vehicle by stabilizing an axial variation by suppressing an oscillatory pitching of a bogie , and can make compatible the stable acceleration/deceleration performance and proper riding quality.
The drive system of the electric vehicle comprises bogie devices 2a, 2b that support the vehicle body 4; a plurality of wheel shafts that support the bogies 2a, 2b, and make the vehicle body 4 move; a motor that drives the wheel shafts; a torque adjustment value calculation means 7 that calculates the motor torque adjusting signals ΔIqpa, ΔIqpb, ΔIqpc and ΔIqpd that control the torque of the motor; displacement detection means 5a, 5b, 5c and 5d that detect the displacements Za, Zb, Zc and Zd of the bogie 2; and drive control devices 8a to 8d. The torque adjustment of the motor by the torque adjustment value calculation means 7 is performed, on the basis of output signals of the displacement detection means 5a to 5d of the bogies.
COPYRIGHT: (C)2006,JPO&NCIPI
Horie Satoshi
Eiichi Toyota
Yoshihiro Miyaji
Keita Suzuki
