| 摘要 |
PROBLEM TO BE SOLVED: To provide an engine control device for a tractor capable of smoothly conducting a series of operation processes by working machine-interlocking travelling while securing operation drive by predetermined constant speed travelling. SOLUTION: The engine control device for the tractor is provided with a control part capable of respectively applying an accelerator memory control for conducting an engine constant speed control with the set "constant speed revolution" and an automatic accelerator control for conducting a switch control of an engine to a predetermined "switch revolution" using an operation state of a working machine as a switching condition. This control part is structured by a control step to process the automatic accelerator control in priority in the case that the switch condition of the automatic accelerator control is satisfied while both the controls are applied and the "switch revolution" is slower than the "constant speed revolution". COPYRIGHT: (C)2008,JPO&INPIT
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