| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drive unit of a power window capable of surely detecting it when insertion occurs without causing malfunction even when a vehicle travels on a rough road. <P>SOLUTION: When load current ID rapidly reduces from a steady state, the increase of current Ir1 is suppressed to dull detection sensitivity of load current increase when thereafter the load current ID is changed from decrease to increase and the current Ir1 increases by increasing current Ir3 for a constant period. Thus, the load current ID decreases, thereafter current during the increase of the load current ID is detected and a drive motor M1 can prevent malfunction of stoppage or reversing by allowing the vehicle to travel on the rough road. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
