| 摘要 |
<p>PURPOSE:To enable adequate clutch torque to be continually ensured with no influence by residual magnetism, by changing or correcting a current characteristic for the torque hysteresis, based on a clutch magnetized condition, in a fine current region. CONSTITUTION:When a vehicle is operated placing a shift to a running range, in case of deciding the vehicle to be in a drag mode by a drag mode decision part 40 in a drag mode current setting part 36, a drag current is set in a steady current setting part 41. While here from this time, integration of the torque hysteresis is started in a magnetized condition detecting part 48. Next, the vehicle is started running by depressing an accelerator, thereafter when the accelerator is released, the maximum current after reverse excitation is allowed to flow, accordingly a correction value corresponding to this current is determined in a correction part 47, and the drag current is conducted. And the vehicle, when it is in a preset car speed, is switched again to the drag mode, here a correction amount is set in the correction part 47 in accordance with this hysteresis.</p> |
