A driveline 10 for a vehicle comprising an engine 11 connected to an input of a transmission 14 via a one-way sprag clutch 13, a launch clutch 16, and a torque converter or other launch facility being provided for the transmission. The one-way sprag clutch only delivers power to the transmission when the input speed from the engine equals or exceeds the input speed from the transmission, and the sprag clutch is lockable or has a parallel clutch to provide drive from the transmission to the engine when required to engine brake. Preferably, the one-way clutch or parallel clutch is controlled automatically to lock when brakes are applied. The one-way clutch may be locked, or the parallel clutch engaged automatically, when a battery is fully charged. If a road gradient is steep and additional braking torque is required, or a trailer is attached, the one-way clutch may be locked, or the parallel clutch may be engaged automatically. The connection to the trailer could act as a trigger to lock the one-way clutch or engage the parallel clutch.


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    Title :

    Vehicle drive lines


    Contributors:

    Publication date :

    2021-01-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



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