DRIVE FORCE CONTROL SYSTEM FOR ELECTRIC VEHICLE, ELECTRIC VEHICLE, AND ROTARY ELECTRICAL MACHINE

WIPO Patent Application WO/2016/075812

A1

[Problem] To maintain yaw rate behavior even when drive force distribution to wheels has been made to vary in order to avoid loss of motor drive capability. [Solution] A drive force control system Sy of an electric vehicle 1 comprises: motors 3FL-3RR which are configured so as to have varying magnetic field fluxes and which individually drive wheels 2FL-2RR; temperature sensors 6FL-6RR that individually detect the temperatures of the motors 3FL-3RR; a state determination unit 505 that determines whether the thermal states of the motors 3 are suitable on the basis of the temperatures detected by the temperature sensors 6; a command correction unit 506 that, if the state determination unit 505 has determined that the thermal state of one or more of the motors 3 is not suitable, corrects a torque command to said motor 3 towards the reduction side and, in order to maintain the electric vehicle 1 yaw moment in a case where such correction is not performed, the command correction unit corrects the torque commands to the remaining motors 3; and a field control unit 507 that individually controls the magnetic field fluxes of the motors 3FL-3RR on the basis of the torque commands corrected by the command correction unit 506.

ISHII TAKAAKI (JP)
NONAKA TSUYOSHI (JP)
OGA SOHEI (JP)
OHTO MOTOMICHI (JP)
MORIMOTO SHINYA (JP)

PCT/JP2014/080179

May 19, 2016

November 14, 2014

Click for automatic bibliography generation  

YASKAWA DENKI SEISAKUSHO KK (JP)

B60L15/20; H02P27/06

JP2005204436A	2005-07-28
JP2013046440A	2013-03-04
JP2014036532A	2014-02-24
JP2013215019A	2013-10-17

MASUDA Hirofumi et al. (JP)
Hirofumi Masuda (JP)

View/Download PDF      PDF Help

Previous Patent: TURNING ASSISTANCE SYSTEM FOR ELECTRIC VEHICLE, ELECTRIC VEHICLE, AND ROTARY ELECTRICAL MACHINE

Next Patent: COMPUTER SYSTEM AND CONTROL METHOD THEREFOR