| 摘要 |
PURPOSE:To prevent an engine stop due to variations in load and any drop in tractive force due to a slip from occurring, by comparing an actual speed in an engine with the actual horsepower detected by a sensor and the preset horsepower and thereby shifting a transmission. CONSTITUTION:A fuel-injection pump 45 is set in motion when a fuel pump cam shaft 26 rotates by rotation from an engine crankshaft, while this shaft 26 is projected to the inside of an electronic governor case 31. A regulating rack 29 is coupled to a control part 33 and an actuator 32 via a pin 28, and actual horsepower turns longitudinal traveling position of the rack 29 into rotation with a rack-and- pinion case 34, rotating an actual horsepower sensor 35 and generating a signal. The actual horsepower detected by the sensor 35 is compared with the setting horsepower W set to a controller, and it is selected according to the relative size, then a solenoid valve is selected to what it should be, whereby an engine stop due to sudden variations in load and a drop in tractive force due to a slip during operation are all prevented from occurring. |
