A control system, for controlling an automatic transmission of, for example, a hybrid vehicle, the control system is configured to receive at step 302 a signal indicative of a speed parameter and receiving at step 304 a signal indicative of an accelerator input. At step 306 determining a target gear ratio based on the speed parameter and the accelerator input and at step 310 outputting a signal comprising instructions to cause initiation of a shift to the target gear ratio in dependence on a rate of decrease in the accelerator input being below a threshold rate. Outputting at step 314 a signal comprising instructions to cause cancellation of the shift to the target gear ratio in dependence on a rate of decrease in the accelerator input exceeding the threshold rate during a period between outputting the signal comprising instructions to cause initiation of the shift and a completion of the shift. Also claimed is an automatic transmission system, a vehicle, a method, and computer readable instructions, for controlling an automatic transmission.


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    Title :

    Controlling gear shifts


    Contributors:
    TOM OWEN (author) / ROBERT CREAN (author) / SAM JOHNSON (author) / JAMES MANNION (author) / JAMES CANNON (author)

    Publication date :

    2024-11-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / 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



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