Cruise Control: Description and Operation

Cruise Control System Construction







The cruise control system is a device which maintains a preset vehicle speed while driving at a high speed, e.g., on a highway. It allows the driver to drive his vehicle at a constant speed of 40 km/h (25 mile/h) or higher without depressing the accelerator pedal. The system also has such functions as to change the vehicle speed without operating the accelerator pedal (but using SET/COAST and RESUME/ACCEL switches), cancel cruise control (CANCEL switch) and resume the speed in memory automatically after cruise control is cancelled (RESUME/ACCEL switch). The system mainly consists of a vehicle speed sensor, an actuator assembly incorporated with control module, cruise control lever (cruise ON/OFF switch, SET/COAST switch, RESUME/ACCEL switch and CANCEL switch), etc.

Components and Functions of Cruise Control System:

Cancel Conditions Of Cruise Control System
Constant cruising is cancelled under the following conditions.
- Ignition switch is turned OFF.
- Cruise ON/OFF switch is turned OFF.
- Vehicle speed has slowed down to lower than minimum operating speed (40 km/h (25 mile/h)).
- *Vehicle speed varies beyond cancel speed range (-15 km/h, -9 mile/h) from preset speed.
- *Brake pedal is depressed. (Stop lamp switch is turned ON).
- *Clutch pedal is depressed (Clutch pedal position switch is turned ON) (For M/T vehicle).
- *Selector lever is shifted to N range (Park / Neutral position switch in transmission range switch is turned ON).
- *CANCEL switch is turned ON.

NOTE: When constant cruising is cancelled under any condition with * (asterisk), vehicle speed before cancellation can be resumed by operating RESUME/ACCEL switch, provided that vehicle speed is higher than 40 km/h (25 miles/h).