| 摘要 |
<p>To prevent spinning of wheels in all-wheel vehicles, a traction control system is used which, in its simplest form, may use existing wheel speed sensors. If any one, or more, or all of the wheel speed sensors provide output signals representative of spinning of a wheel, for example by providing output signals representative of a substantially higher speed than other wheels, or higher than a reference-indicating that all wheels are spinning-an output signal is generated by the electronic control unit (6) which, in turn, controls application of the wheel brake to the respective wheel, thus preventing its spinning. Spinning of any one wheel, of course, causes loss of traction at another one due to the effect of the normally interposed differentials (4, 5, 3a). Thus, the system provides a simple, electronically controlled "differential lock-up", responsive only to speed of spinning wheels, without modification of the differentials as such, by applying the external wheel brakes, selectively, to those wheel or wheels which are spinning.</p> |
