FRONT WHEEL DRIVE CLUTCH CONTROL SYSTEM

摘要

FRONT WHEEL DRIVE CLUTCH CONTROL SYSTEM A clutch control system for the front wheel drive clutch of a four-wheel drive vehicle engages the front wheel drive clutch as a function of three brake-operated switches, a pair of manually-operated "OFF-ON-AUTO" mode switches and a pair of speed responsive switches connected between a battery and the solenoid of a front wheel drive clutch control valve. The system engages the clutch when vehicle speed is above a limit speed and both service brakes are applied even when the mode switches are in their "OFF" position wherein the clutch is normally disengaged.