Methods and systems for a multi-ratio gear box and four speed transmission are provided. In one example, a first shaft is coupled to one or more input speed reduction gear sets. A second shaft is coupled to a multi-range clutch having a first position and a second position allowing for two speeds. A third shaft is coupled to a low-speed clutch and a fourth shaft is coupled to a high-speed clutch, together doubling the number of speeds. The high and low-speed clutches provide a large gear spread that allow the multi-range clutches to have a reduced gear spread, overall reducing the required size of the transmission. A fifth shaft, coupled to the fourth shaft via a gear, may be an output shaft spaced away from the electric motors, thereby creating a short flange to flange distance.


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    Title :

    FOUR SPEED COUNTERSHAFT TRANSMISSION


    Contributors:

    Publication date :

    2024-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES



    AXLE ASSEMBLY HAVING A MULTI-SPEED COUNTERSHAFT TRANSMISSION

    GHATTI CHETANKUMAR / SOFFNER RODRIGO / KEENEY CHRISTOPHER et al. | European Patent Office | 2021

    Free access

    AXLE ASSEMBLY HAVING A MULTI-SPEED COUNTERSHAFT TRANSMISSION

    GHATTI CHETANKUMAR / SOFFNER RODRIGO / KEENEY CHRISTOPHER et al. | European Patent Office | 2024

    Free access

    AXLE ASSEMBLY HAVING A MULTI-SPEED COUNTERSHAFT TRANSMISSION

    GHATTI CHETANKUMAR / SOFFNER RODRIGO / KEENEY CHRISTOPHER et al. | European Patent Office | 2024

    Free access

    AXLE ASSEMBLY HAVING A MULTI-SPEED COUNTERSHAFT TRANSMISSION

    GHATTI CHETANKUMAR / SOFFNER RODRIGO / KEENEY CHRISTOPHER et al. | European Patent Office | 2021

    Free access

    Axle assembly having a multi-speed countershaft transmission

    GHATTI CHETANKUMAR / SOFFNER RODRIGO / KEENEY CHRISTOPHER et al. | European Patent Office | 2021

    Free access