According to the method, transmission apparatus of a vehicle, the apparatus comprising a drive engine (18), a mechanical transmission (16) connected to the drive engine, and a hydraulic transmission (20) having a pump (24) and n hydraulic motors (26A, 26B), where n is greater than or equal to 1, the pump being suitable for being driven by the drive engine for feeding fluid to the hydraulic motors. The method consists in performing a “low-speed” assistance stage, during which, when the vehicle is driven by the mechanical transmission, the method consists in establishing a setpoint pressure for the pressure difference between the feed and the discharge of each of the hydraulic motors, in feeding the hydraulic motors by the pump, in detecting the pressure difference between the feed and the discharge (28A, 28B) of each of the hydraulic motors (26A, 26B), and in adjusting the delivery rate of the pump so that said pressure difference is substantially equal to said setpoint pressure.


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    Title :

    PROCEDE D'ASSISTANCE HYDRAULIQUE DE L'ENTRAINEMENT D'UN VEHICULE A BASSE VITESSE


    Additional title:

    METHOD FOR HYDRAULICALLY ASSISTING THE DRIVE OF A LOW-SPEED VEHICLE
    VERFAHREN ZUR HYDRAULISCHEN UNTERSTÜTZUNG DES ANTRIEBS EINES FAHRZEUGS MIT GERINGER DREHZAHL


    Contributors:

    Publication date :

    2020-04-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    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 / F16H Getriebe , GEARING



    PROCEDE D'ASSISTANCE HYDRAULIQUE DE L'ENTRAINEMENT D'UN VEHICULE A BASSE VITESSE

    DIDIERJEAN CLAUDE / DEPIERRE GERY / HOUILLON PIERRE-LOUIS | European Patent Office | 2016

    Free access

    PROCEDE D'ASSISTANCE HYDRAULIQUE DE L'ENTRAINEMENT D'UN VEHICULE A BASSE VITESSE

    DIDIERJEAN CLAUDE / DEPIERRE GERY / HOUILLON PIERRE-LOUIS | European Patent Office | 2016

    Free access