PROBLEM TO BE SOLVED: To reduce losses caused when transferring from a motor travelling state where an engine is stopped to a hybrid travelling state where the engine is operated.SOLUTION: The control device of a hybrid vehicle comprises a transmission mechanism which can divide and transmit engine torque to a first motor side and an output part side to which torque of a second motor is added and can change a ratio between first torque to be transmitted to the first motor side and second torque to be transmitted to the output part side. In transferring from an EV travelling mode in which an engine is stopped and the vehicle travels by power of the motor, to an HV travelling mode in which the vehicle travels by power of the engine, when vehicle speed is higher than a vehicle speed threshold Vth, the device starts the engine in a Hi mode in which a share rate of torque of output elements relative to torque of input elements of the transmission mechanism is small; and when the vehicle speed is equal to the vehicle speed threshold or less, the device starts the engine in a Lo mode in which a share rate is larger than the share rate in the Hi mode (steps S140-S180).SELECTED DRAWING: Figure 6
【課題】エンジンを停止したモータ走行状態からエンジンを稼動させたハイブリッド走行状態へ移行する際の損失を低減する。【解決手段】エンジントルクを第1モータ側と、第2モータのトルクが付加される出力部側とに分割して伝達し、前記第1モータ側に伝達される第1トルクと前記出力部側に伝達される第2トルクとの比を変更可能な変速機構を備えたハイブリッド車両の制御装置において、前記エンジンを停止してモータの動力で走行するEV走行モードから前記エンジンの動力で走行するHV走行モードへ移行する際に、車速が車速閾値Vthよりも高い場合は、変速機構の入力要素のトルクに対する出力要素のトルクの分担率が小さいHiモードで前記エンジンを始動し、前記車速が前記車速閾値以下の場合は、前記Hiモードよりも前記分担率が大きいLoモードで前記エンジンを始動する(ステップS140〜S180)。【選択図】図6
CONTROL DEVICE OF HYBRID VEHICLE
ハイブリッド車両の制御装置
2018-01-11
Patent
Elektronische Ressource
Japanisch
IPC: | 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 / 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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