| 摘要 |
<p>PURPOSE:To accurately carry out creep control by correcting a target transmission torque from a creep control torque by a defined quantity when the transmission torque of a hydraulic clutch fails to be the creep control torque by a calculated exciting current. CONSTITUTION:When a target transmission torque is made a creep control torque by a creep control means M8, a judging means M9 judges whether or not the transmission torques of a hydraulic clutch M3 can be a creep control torque by means of an exciting current in which the creep control torque is calculated as the target transmission torque, according to a control hysteresis. That is, it is judged whether or not the transmission torque is different from a desired value according to a hysteresis having a characteristic of a clutch control hydraulic pressure regulated by an electromagntic pressure control valve M5. When it is judged that the transmission torque fails to be the creep control torque by the calculated exciting current, the target transmission torque is made a torque which is corrected from the creep control torque by a defined quantity, by a target correcting means M10. Thereby, an accurate creep control torque can be obtained.</p> |
