| 摘要 |
PURPOSE:To make a quick turnabout performable without any hindrance, by releasing a bind of control for a drop of speed in a driving wheel at the high revolution side when a speed differential in both driving wheels exceeds a specified value with one side driving wheel braked. CONSTITUTION:In case of a farm tractor or the like, when driving wheels are to be braked, a control part 10 takes in a speed signal proportionate to an axle revolution to be fed out of symmetrical driving wheel-rotation sensors 1 and 2. A speed differential in these symmetrical driving wheels and a slip rate are calculated, and the calculated value is indicated on each of indicators 5 and 6. Coding discrimination for the speed differential (a) takes place, and if the speed differential (a) is a positive value, an expression 'setting value <a' is so judged. When a signal out of a left-side driving wheel brake detector 4 is not taken in, a process for alarm lamp lighting takes place. On the other hand, the speed differential (a) is larger than the setting value and braking operation takes place, both processes for releasing the operation of an axle controller and the alarm lamp lighting are carried out. |
