The present invention provides a speed ratio control method applicable to CVT of EVs so as to optimize the motor performances. Said speed ratio control method for CVT of EVs comprises the following steps: the controller acquires the real-time opening degree signals of accelerator pedal, the motor rotational speed and the speed ratio of CVT, and regulates the motor rotational speed or the speed ratio of CVT according to said signals, so that the motor can work within the range of high efficiency motor rotational speed, while satisfying power requirement of entire vehicle. Through reasonable control of speed ratio and regulation of motor rotational speed, CVT becomes more compatible with the motor and the motor efficiency is optimized on the basis of ensuring the power requirement of entire vehicle. The power system works under the optimum condition so that the energy utilization efficiency and drivability are improved.
SPEED RATIO CONTROL METHOD FOR CVT OF ELECTRIC VEHICLE
GESCHWINDIGKEITSVERHÄLTNIS-STEUERVERFAHREN FÜR EIN STUFENLOSES GETRIEBESYSTEM EINES ELEKTROFAHRZEUGS
PROCÉDÉ DE COMMANDE DE RAPPORT DE VITESSES POUR CVT DE VÉHICULE ÉLECTRIQUE
2018-03-28
Patent
Elektronische Ressource
Englisch
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 / 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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