| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a traveling control device of an industrial vehicle for stably controlling a vehicle speed even in a partially clutch-engaged condition. <P>SOLUTION: This traveling controls of the industrial vehicle comprises a transmission 3 having hydraulic forward and backward clutches 4 and 5 to transmit an output of an engine 1 to drive wheels 6 via a torque converter 2, forward and backward proportional solenoid valves 9 and 10 to respectively control engaged conditions of the forward and backward clutches 4 and 5 by controlling the hydraulic pressure from a pump 7, an accelerator pedal operational quantity detecting means 18, a vehicle speed detecting means 28, and a control means 30 to control the forward and backward proportional solenoid valves 9 and 10 so that a real vehicle speed reaches a target vehicle speed by setting the target vehicle speed according to the accelerator pedal operational quantity. The control means 30 continuously outputs the output to the forward proportional solenoid valve with the output is gradually increased to a set value set based on the difference between the target vehicle speed and the real vehicle speed, and decreased as one set. <P>COPYRIGHT: (C)2004,JPO</p> |
