| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vehicle speed control apparatus for a continuously variable working vehicle capable of achieving a secure running stop control without resulting in a cost increase on the driving system of the trunnion shaft, acquiring necessary variable movement accuracy, while especially, you are not being forced to stop engine or do other troublesome operations whenever you stop running vehicle. <P>SOLUTION: The vehicle speed control apparatus for a continuously variable working vehicle comprises vehicle speed indicators 5f, 5r, and a controller P which drive-controls a trunnion shaft H of the HST variable transmission 1 until an angle measure of the selecting speed accommodating to the operations. The controller P is so comprised that the turning speed of the trunnion shaft H can be composed switchably by selecting speed of expedition and optional, and changes the present selecting speed into the expedition selecting speed from the selecting speed until the trunnion shaft H is drive-controlled to the vehicle speed stop position unless the turning motion of the trunnion shaft H is detected by the driving control to the vehicle speed stop position accommodating with the stop input by the vehicle speed indicator. <P>COPYRIGHT: (C)2010,JPO&INPIT |
