| 摘要 |
<p>A power assist motor drive unit includes an H-bridge circuit (30), current detecting means (40), and current control means (20) for carrying out a PI feed back control according to a difference between the absolute values of a command current value and a actual motor current, thereby controlling the H-bridge circuit(3). The current control means includes PI operation control means (25) and compensation-term-operation means (24) for resetting a integration compensation term to a suitable value when operation of the power assist motor (3) is changed from one state to another. <IMAGE></p> |
