A target shift stage comes to a high speed stage at t2, during reduction toward zero of a motor torque by an accelerator pedal releasing operation (reduction to zero of an accelerator pedal stroke amount STacc) from t1, and an up-shift request along with the torque reduction is generated. However, the shift request is not executed until t3 when a delay time TMs elapses after t2, but is executed for the first time at t3, and the automatic transmission is shifted up to a high speed stage from a current low speed stage selecting state. Therefore, even in the case that a request for increasing a motor regenerative torque is issued by a braking operation just after (t2 to t3) an up-shift request moment t2 in response to the torque reduction (the accelerator pedal releasing), the gear shift in response thereto is not generated, and it is possible to avoid generation of repeated gear shift of low speed stage high speed stage low speed stage for a short time.
SHIFT CONTROL DEVICE AND SHIFT CONTROL METHOD FOR AN AUTOMATIC TRANSMISSION
SCHALTSTEUERVORRICHTUNG UND SCHALTVERFAHREN FÜR EIN AUTOMATIKGETRIEBE
DISPOSITIF ET PROCÉDÉ DE CONTRÔLE DE CHANGEMENT DE RAPPORT D'UNE TRANSMISSION AUTOMATIQUE
2018-09-12
Patent
Electronic Resource
English
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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |