| 摘要 |
<p>PURPOSE:To rapidly complete gear shift, by a method wherein, if input torque of a transmission is a value by means of which a rate of rotation change exceeds a given target value, it is decided that an input shaft is in an input power ON state, and if below the given target value, it is decided that the input shaft is in an input power OFF state. CONSTITUTION:A transmission control unit 16 inputs signals for a number Ne of revolutions of an engine detected by a sensor 14, a number Nt of revolutions of a turbine by a sensor 15, a number No of revolutions of a transfer drive gear by a sensor 17, a throttle valve opening thetat by a sensor 18, and an oil temperature by a sensor 19. When input torque of a transmission 30 is a value by means of which a rate of change of rotation of a turbine shaft 30a being an input shaft during gear shift exceeds a given target value, it is decided that the input shaft is in an input power ON state. Meanwhile, when below the given target value, it is decided that the input shaft is in an input power OFF state. This constitution enables proper and reliable decision of the power ON and OFF state of the input shaft of the transmission, and enables rapid completion of gear shift without mistaking a gear shift control logic.</p> |
