| 摘要 |
<P>PROBLEM TO BE SOLVED: To reliably prevent degradation of a battery by performing a rapid control so that a battery voltage or a battery current may not exceed a threshold even when an operation of an electric motor changes. <P>SOLUTION: A control device of an electric vehicle stores therein an output torque T1 and a rotational angular speed ω1 of a motor generator when the battery voltage reaches the lower limit VlimL, and calculates a feed forward control torque Tff so that an integrated value of a rotational angular speed ω and an output torque T when driving the motor generator matches an integrated value of the output torque T1 and the rotational angular speed ω1 stored upon reaching the lower limit VlimL. A suppression torque T' is calculated by adding the feed forward control torque Tff and a feedback control torque Tfb (S30), and a torque command value T" of the motor generator is set based on the suppression torque T' (S50). <P>COPYRIGHT: (C)2012,JPO&INPIT |
