MOTOR CONTROL SYSTEM

Japanese Patent JP2015080290

A

PROBLEM TO BE SOLVED: To prevent reduction in drivability of a vehicle by suppressing influences of current sensor abnormality.SOLUTION: A motor control system 8 includes a control device 40 that controls a motor 30 via an inverter 20. The control device 40 generates first voltage commands Vd* and Vq* through feedforward control from a torque command Tq* and a motor rotation speed θ of the motor 30, converts the torque command Tq* of the motor 30 into current commands Id* and Iq* and generates a second voltage command through feedback control from a current deviation that is a differential between real currents Id and Iq detected by a current sensor 31 and the current commands Id* and Iq*. The first voltage commands Vd* and Vq* and the second voltage command are added and defined as voltage command values Vd# and Vq# of the motor. When abnormality of the current sensor 31 is detected, a gain to be used for the feedback control of the motor 30 is reduced further than that in normal time.

JPH0674096	[Name of invention] Drive circuit of fan motor
JP4501433	DC motor coil temperature estimation method and its equipment

SATO RYOJI

JP2013214739A

April 23, 2015

October 15, 2013

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TOYOTA MOTOR CORP

H02P6/12; H02P6/06; H02P6/08; H02P6/16; H02P6/17; H02P6/28; H02P21/00; H02P21/12; H02P21/22; H02P23/16; H02P27/06; H02P27/08

JP2003219699A	2003-07-31
JPH0520976U	1993-03-19
JP2007331646A	2007-12-27
JP2008259270A	2008-10-23
JP2012186930A	2012-09-27
JP2011229249A	2011-11-10
JP2009171726A	2009-07-30
JPH10313592A	1998-11-24

WO2008026269A1	2008-03-06
WO2006112033A1	2006-10-26
US20110214934A1	2011-09-08

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