| 摘要 |
PURPOSE:To perform the load control of a working machine including the loss of output by the weight of the own vehicle during the working with aceelerated speed or the operation on sloped land. CONSTITUTION:A signal Salpha to show the present acceleration alpha of the vehicle from an acceleration detector 11 set up at the given position of the vehicle is outputted to a memory device 13 which stores characteristic curves to represent relations between the acceleration alpha of the vehicle and the target speed VP at the time when the maximum operation efficiency is exhibited and puts out a signal eV corresponding to a signal alpha when the signal Salpha is given. The vehicle speed detector 12, which is provided on an engine power line 17, for example, outputs a signal eV according to the speed V of the vehicle at present. In a compensatory amplifier circuit 14, difference DELTAe between the signals SV and eV is amplified, an actuator 15 is operated based on the deviation DELTAe to vertically move the working machine, and the load of the working machine is controlled so as to make the present speed V of the vehicle a target speed VP. |
