| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control device of an oil pump which can avoid an unnecessary increase of a battery capacity by controlling a current value at a low temperature. <P>SOLUTION: The current value supplied to a motor 2 is calculated by a current value calculation means 1061 (S6), and it is determined whether or not the calculated current value is larger than a current limit value (S7). When the calculated current value is larger than the current limit value, current limit processing is performed (S8), and on the other hand, when the calculated current value is not larger than the current limit value, rotation-number control processing is performed (S9). In the current limit processing, a difference between the calculated current value and the current limit value is operated (SB1), a DUTY value of a DUTY drive signal to the motor 2 is lowered by current-value PID control on the basis of the difference, constant current control is performed so that the calculated current value may not exceed the current limit value (SB2), and a process is returned to the step S6. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
