| abstract |
A power system for coupling a constant speed operation of an engine with an apparatus capable of shifting control is provided. In a process in which the engine 100 starts from a stationary state and accelerates and drives from a low speed, the engine 100 is controlled to enter a rotational speed zone where the net fuel consumption rate is higher at a constant speed or a speed close to a constant speed. Can be driven. In addition, by driving the front transmission 102 that can actively control stepped or continuously variable transmission from the output end of the engine, the process and operation of starting from the output end and accelerating from the low speed are driven. In some cases, fuel can be saved by operating the engine in a rotational speed region where the net fuel consumption rate is relatively high. [Selection] Figure 2 |