PROBLEM TO BE SOLVED: To solve such a problem that there is a possibility of deterioration in drivability caused by a shift operation due to switching from an HV traveling mode or a regenerative traveling mode to an EV traveling mode.SOLUTION: A hybrid vehicle includes a shift control device that is configured to control switching between shift stages in a multi-stage automatic transmission based on a vehicle speed and a parameter related to a vehicle driving force. The shift control device controls switching between the shift stages such that a gear ratio selected at a predetermined vehicle speed and selected in a regenerative traveling mode that is a boundary region with respect to an EV traveling mode becomes greater than a gear ratio selected at the predetermined vehicle speed and selected in an HV traveling mode that is a boundary region with respect to the EV traveling mode, and is configured to control the switching between the shift stages such that a gear ratio selected when the traveling mode is switched from the regenerative traveling mode to the EV traveling mode is greater than a gear ratio selected when the traveling mode is switched from the HV traveling mode to the EV traveling mode under the same vehicle speed and the parameter.SELECTED DRAWING: Figure 6
【課題】HV走行モードや回生走行モードからEV走行モードへと切り替わった際に行われる変速操作に起因してドライバビリティの悪化が懸念される。【解決手段】車速と車両の駆動力に関連するパラメーターとに基づいて多段自動変速機の変速段の切り替えを制御する変速制御装置を具え、この変速制御装置は、所定車速においてEV走行モードとの境界領域のHV走行モードにて選択される変速比よりも、同じ所定車速においてEV走行モードとの境界領域となる回生走行モードにて選択される変速比が大きくなるように、変速段の切り替えを制御し、また車速とパラメーターとが同じであっても、HV走行モードからEV走行モードに切り替わった場合に選択される変速比が、回生走行モードからEV走行モードに切り替わった場合に選択される変速比よりも大きくなるように、変速段の切り替えを制御する。【選択図】図6
SHIFT CONTROL DEVICE FOR HYBRID VEHICLE
ハイブリッド車両の変速制御装置
2018-07-05
Patent
Elektronische Ressource
Japanisch
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 / F16H Getriebe , GEARING |
Shift control device and shift control method for hybrid vehicle
Europäisches Patentamt | 2019
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