PROBLEM TO BE SOLVED: To suppress excessive increase in a load of an electric oil pump for use in supplying hydraulic pressure to an engagement element of a transmission device during travel on both motors.SOLUTION: An ECU is incorporated in a vehicle that includes an engine, a first MG, a second MG, a power transmission device (a planetary gear device), a transmission device having an engagement element to be engaged with hydraulic pressure from an electric pump, and a counter shaft (an output shaft) connected to the second MG and a drive wheel. The power transmission device includes: a carrier connected to the engine via the transmission device; a sun gear connected to the first MG; and a ring gear connected to the counter shaft. During travel on both motors using power of both the first MG and second MG while the engine is stopped, the ECU maintains the carrier of the power transmission device stopped by engaging the engagement element of the transmission device. In a case where a load of the electric pump exceeds a threshold during the travel on both motors, the ECU reduces torque of the first MG.SELECTED DRAWING: Figure 8

    【課題】両モータ走行中に変速装置の係合要素に油圧を供給する電動オイルポンプの負荷が過剰に高くなることを抑制する。【解決手段】ECUは、エンジン、第1MG、第2MG、動力伝達装置(遊星歯車装置)、電動オイルポンプからの油圧によって係合される係合要素を有する変速装置、および、第2MGおよび駆動輪に接続されるカウンタ軸(出力軸)を備えた車両に搭載される。動力伝達装置は、変速装置を介してエンジンに接続されたキャリアと、第1MGに接続されたサンギヤと、カウンタ軸に接続されたリングギヤとを含む。ECUは、エンジンを停止して第1MGおよび第2MGの両方の動力を用いて走行する両モータ走行中に、変速装置の係合要素を係合することによって動力伝達装置のキャリアを停止状態に維持する。ECUは、両モータ走行中に電動オイルポンプの負荷がしきい値を超えた場合、第1MGのトルクを低下させる。【選択図】図8


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    Title :

    VEHICULAR DRIVE APPARATUS


    Additional title:

    車両の駆動装置


    Contributors:

    Publication date :

    2016-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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 / 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



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