| 摘要 |
<p>PURPOSE:To prevent a vehicle from abruptly stopping by invalidating the operation of a forward/reverse changeover switch while the vehicle is traveling. CONSTITUTION:When an accelerator pedal is depressed so that an accelerator switch 30 is closed, a normal command or a reverse command is supplied through a memory indication switch 50B and forward/reverse setting means 6 to memory means 7, and stored. A normal relay coil 90A or a reverse relay coil 92A is operated by the output of the means 7. Speed control means 15 controls the current amount of a chopper 15B in response to a deviation between a speed signal S1 and a speed command. A setting means controlling mechanism 9, when inputting the signal S1, excites a relay coil 50A to open the switch 50B. Thus, the storing state of the means 7 is held until a vehicle is stopped.</p> |
