To provide a power train mount structure of a vehicle in which bending rigidity is suppressed from increasing while improving rigidity (roll rigidity) against torsion of a power train-side mount bracket, and a torsion resonance point and a bending resonance point are set in a high-frequency range and a low-frequency range respectively.SOLUTION: The power train mount structure of a vehicle comprises connection parts 50g and 50h in which a power train-side mount bracket 50 comprising a single extending part 50a extending from an upper end of a stepladder-shaped leg member 50d having leg parts 50b and 50c in a longitudinal direction toward outside in a vehicle width direction is connected to a vehicle body-side mount bracket 51 through a mount rubber 53 to be mounted on the extending part 50a and connects the leg parts 50b and 50c in the longitudinal direction, where an intermediate mounting part 50i is provided between the connection parts 50g and 50h and a rigidity deteriorated part 50k against loads in a vehicle width direction is formed adjacently to the intermediate mounting part 50i.SELECTED DRAWING: Figure 16
【課題】パワートレイン側マウントブラケットの捩じれに対する剛性(ロール剛性)の向上を図りつつ、曲げ剛性の上昇を抑え、捩じれ共振点を高周波数域に、曲げの共振点を低周波数域にそれぞれ設定する車両のパワートレインマウント構造の提供を目的とする。【解決手段】前後に脚部50b,50cを有する脚立状脚部材50dの上端から車幅方向外方側に延びる単一の延出部50aを備えたパワートレイン側マウントブラケット50が、延出部50aに取付けられるマウントラバー53を介して車体側マウントブラケット51に接続され、前後の脚部50b,50c間を連結する連結部50g,50hを備え、連結部50g,50hに中間取付け部50iを設けると共に、中間取付け部50iに隣接して車幅方向の荷重に対する剛性低下部50kが形成されたことを特徴とする。【選択図】図16
POWER TRAIN MOUNT STRUCTURE OF VEHICLE
車両のパワートレインマウント構造
2019-02-21
Patent
Electronic Resource
Japanese