To provide a torque assist device in a vehicle that use an internal combustion engine as a drive source, with which start-up acceleration performance is improved by using an electric motor and it is possible to prevent the efficiency and durability of the power transmission system from decreasing due to the electric motor after the start.SOLUTION: It is equipped on a vehicle comprising an internal combustion engine 1, a transmission 4 connected to the internal combustion engine 1, and a differential mechanism 6 connected to the transmission 4 for distributing driving force to the left and right drive wheels. It comprises: an electric motor 8 that applies torque to an input gear 61 of the dynamic mechanism 6 to assist the torque; and a power connection/disconnection mechanism 9 arranged between an output shaft 81 of the electric motor 8 and the input gear 61, which transmits torque to the input gear 61 from the output shaft 81 under a travel start state of the vehicle and interrupts transmission of torque to the input gear 61 from the output shaft 81 when the travel start state is completed.SELECTED DRAWING: Figure 1
【課題】内燃機関を駆動源とする車両において、電動モータを利用して発進加速性能を向上させるとともに、発進後の電動モータによる動力伝達系の効率低下や耐久性低下を防止できるようにしたトルクアシスト装置を提供する。【解決手段】内燃機関1と、内燃機関1に連結された変速機4と、変速機4に連結され左右の駆動輪に駆動力を分配する差動機構6とを備えた車両に装備され、差動機構6の入力歯車61にトルクを付与してトルクアシストする電動モータ8と、電動モータ8の出力軸81と入力歯車61との間に、車両の発進開始状態では出力軸81から入力歯車61へトルクを伝達し、発進開始状態が完了したら出力軸81から入力歯車61へトルクの伝達を遮断する動力断接機構9と、を備える。【選択図】図1
TORQUE ASSIST DEVICE
トルクアシスト装置
2020-08-31
Patent
Electronic Resource
Japanese
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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