To enable the operation-assist device to effectively prevent the generation of hunting when an operating tool abuts on the end part of operating region to be regulated.
A speed change lever 26 is mechanically coupled to a speed change part 20 of a continuously variable transmission 3, and when the speed change lever 26 is artificially operated, an assist force is given to the speed change lever by an electric motor 23, and in the non-operated state the speed change lever is controlled so that the assist operation is stopped. When it is detected that the speed change lever 26 is positioned in the end part setting region, and when the operation of the speed change lever 26 to the end part side is detected, the assist operation is executed. Before a setting time elapses after the assist operation is terminated, the operation of the speed change lever 26 in the opposite direction is detected, and after the operation in the opposite direction is switched to the non-detected state, the operation of the speed change lever to the end part side is again detected. At this time, the operation of the electric motor 23 is controlled so that the speed change lever 26 can be kept in its speed change position.
| JP4473448 | Hybrid vehicle |
| JP2012072820 | TRAVELING TRANSMISSION OF WORKING VEHICLE |
TAKAHARA KAZUHIRO
UEDA SUEZO
