| 摘要 |
<p>PURPOSE:To reduce the shock on speed change by properly controlling the clutch pressure of an automatic speed change gear so that the engine revolution speed varying time is always set to the optimum state when speed change is performed. CONSTITUTION:A clutch-pressure instruction value generating means 101 generates the instruction value of the clutch pressure of an automatic speed-change gear corresponding to the parameters related to the engine output. A state-parameter detecting means 106 detects the state parameters of the automatic speed change gear, and corrects the instruction value of the clutch pressure on the basis of the state parameters. A correcting means 108 corrects the instruction value of the clutch pressure according to the correction amount which is determined and memorized when the speed-change instruction reaches in the preceding time, each time the speed-change instruction reaches succeedingly to the first time.</p> |
