Cruise Control Driving: Notes

When the main switch is turned to on and the set switch is pushed in with the vehicle speed within the set limit (approximately 40 km/h, 25 mph to 200 km/h, 124 mph), a signal is input to the computer and the vehicle speed at that time is recorded in the computer memory as the set speed. The computer compares the recorded set speed with the actual vehicle speed input into the speed sensor and controls the cruise control actuator in order to maintain the set vehicle speed.

When the actual vehicle speed is lower than the set speed, computer operation lengthens the period of current flow from the computer to the actuator the control valve. The cable is pulled in the direction for opening throttle valve and the vehicle speed increases. When the actual vehicle speed is higher than the set speed, a shorter period of current flow to control valve returns the cable in the direction for closing the throttle valve and the vehicle speed decreases.