| 摘要 |
PURPOSE:To enable a constant speed running to be accomplished by configurating a device in such a manner that a required quantity of fuel and a required change gear ratio are determined based on both an engine necessary horse power which is computed on the basis of a deviation of an actual speed, and the actual speed so as to control a fuel feed device and the transmission. CONSTITUTION:An actual speed NW from a speed sensor 5, and a target speed NWC from a target speed command device 6 are inputted into No.1 arithmetic circuit 8 of a control device 7. An engine necessary horse power is computed based on the computed difference between the actual speed NW and the target speed NWO and then is inputted into No.2 arithmetic circuit 9 computes the obtained data together with the actual speed NW and determines a required change gear ratio (e) and a required quantity of fuel Q, signals for which are then outputted to the stepless transmission 3 and a fuel feed device 2 respective ly in controlling both the engine 1 and the transmission 3 so as to maintain a constant speed. This configuration enables a constant speed running to be accomplished. |
