| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform stop operation of a tractor simply. <P>SOLUTION: When an engine starts (S12) and T1 time elapses (S15:yes), running work such as change gear ratio adaptation control is performed (S21). In this running work, whether a gear shift pedal is stepped on or not is determined (S22). When the gear shift pedal is not stepped on (S22:no), rotational speed of the engine, rotational speed of a main gear shift output part, and vehicle speed are read (S23). When vehicle speed is below predetermined minute speed V1 (for example, about 0.1 Km/hour) (S24:yes), a running controller 210 turns OFF an advance clutch solenoid valve 46 and a backing clutch solenoid valve 48 to shut off driving force to a running part by regarding that an operator has intention to stop running (S16). Auto brake operation for turning ON an auto brake solenoid valve 67 for a brake cylinder 68 of a front wheel and a rear wheel and applying brake is performed (S17). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
