PURPOSE: To prevent a microcomputer from speeding by generating a reset signal by the operation of speed restraining and resetting the microcomputer at the initial step of a program for releasing the automatic control of a throttle valve.
CONSTITUTION: Just after an electric source switch 9 is thrown in, a reset input terminal 40 is at a low level by a condenser 42, and a microcomputer 7 is resetted to be automatically controlled by operations of a set switch 22 and a resuming switch 36 in accordance with a program. When the microcomputer 7 speeds to operate a brake and a clutch during running, switches 46 and 44 are connected, and the reset input terminal 40 is brought to a low level to reset the microcomputer 7. This construction permits to prevent the microcomputer 7 from speeding.
JPS5340102B2 | 1978-10-25 |