| 摘要 |
A system is provided for the throttle control of a multi-combination vehicle operable by a driver where said vehicle includes at least two engines each engine operable by an independent throttle. One of the throttles is controll ed by a standard throttle pedal, the other by a hand-controlled throttle. If th e driver becomes ineffective such as loosing consciousness, the second throttl e is caused to be disregarded by the second engine that is forced to an idle position. Further, the second throttle can only become operable when the second throttle has been manually reset to a predetermined position, general ly the idle position. A further improvement to the invention lies in the fact that under emergency braking the transmission system coupled with the second engine, generally automatic, is forced to convert mode to protect the transmission from damage.
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