| 摘要 |
PURPOSE:To obtain an automatic change gear of a simple mechanism by using a system in which a normally engaging type transmission is used, an electromagnetic clutch is used as a clutch, and these are all automatically controlled. CONSTITUTION:A normally engagving type transmission 3 is shifted by an actuator 5. In a control box 7, rotation number and suction negative pressure are taken out in the form of electric signals, and these signals are outputted to arithmetic unit from which output signal for operating an actuator 5 is sent out. By this, a change gear operation is made for optimum position, and also the ON- OFF control of the current of an electromagnetic powder type electromagnetic clutch 2 and the control of clutch current to perform optimum clutch meet are conducted. |
