| 摘要 |
<p>PURPOSE: To reduce a transmission shock by providing a detecting means detecting the number of revolutions of an output shaft in an automatic transmission, a means finding a rate of change in the number of revolutions from the detected number of revolutions, and a means assuming that a clutch is connected on the basis of the found rate of change. CONSTITUTION: A down-shift start flag FlgD and the number No2 of transmission output shaft revolutions when a shaft vibration is generated are read as signals decided in transmission control (130). A rate No.a of change in No2 is computed (131), and it is determined whether a down-shift signal is generated or not (132). When it is YES, it is determined whether down-shift time engine torque reducing control start, flag FlgDCS is 1 or not (136), and 1 is inputted to the flag FlgDCS (138) if it is YES, and then,Δadv is found on the basis of a function f10 of Noa2 (139). When the flag FlgDCS is 1, it is determined whether Noa2 is not more than a down-shift time engine torque reducing control finish constant K11 (140), and if torque reduction is on its way, 0 is inputted to the flag FlgD, the flag FlgDCS, andΔadv (corrected ignition timing).</p> |
