发明名称 ABNORMAL VOLTAGE GENERATION PREVENTING DEVICE FOR ELECTRIC MOTOR TYPE FOUR WHEEL DRIVE VEHICLE
摘要 <P>PROBLEM TO BE SOLVED: To prevent a voltage from increasing abnormally by allowing a motor torque command value to sharply decreases accompanying the speed increase, while a motor torque command value is limited to an outputable upper limit torque. <P>SOLUTION: While a motor torque command value is limited to the outputable upper torque of each speed, when it is decided that a speed VSP is ranging from speed regions VSP1 to VSP 2 where a motor torque command value sharply decreases, and the abnormal increase of a voltage is generated, when it is sharply increased, in step S21; and when it is decided that vehicle acceleration &alpha; is an abnormal voltage generation acceleration decision value &alpha;s or larger at an S22, a command to decrease an engine Te so that the vehicle acceleration &alpha; can be set so as to be the abnormal voltage generation acceleration decision value &alpha;s or smaller is issued in step S23. Thus, the decreasing speed of a motor torque command value tTm can be prevented from becoming sharp, according as the abnormal increase of voltage is generated by controlling the decrease in the engine torque. <P>COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007245896(A) 申请公布日期 2007.09.27
申请号 JP20060071351 申请日期 2006.03.15
申请人 NISSAN MOTOR CO LTD 发明人 MASUDA REI;HIRAI JUNICHI
分类号 B60W10/08;B60K6/34;B60K6/44;B60K6/52;B60K6/54;B60L11/14;B60W10/06;B60W20/00 主分类号 B60W10/08
代理机构 代理人
主权项
地址