The invention relates to a multi-connecting-rod rear suspension assembly and an automobile. The multi-connecting-rod rear suspension assembly comprises a shaft joint, a front upper swing arm, a rear upper swing arm, a front lower swing arm, a rear lower swing arm, a front beam arm, a shock absorber and a rear auxiliary frame. The outer ends of the five swing arms are all connected to the shaft joint, the inner ends of the five swing arms are all connected to the rear auxiliary frame, and the shock absorber is connected to the front lower swing arm. An included angle between a connecting line of an inner point and an outer point of the rear upper swing arm and the Y axis is 25-35 degrees; an included angle between a connecting line of an inner point and an outer point of the toe-in arm and the Y axis is 5-15 degrees; the included angle between the connecting line of the inner point and the outer point of the front lower swing arm and the Y axis is 25-45 degrees; an included angle between a connecting line of an inner point and an outer point of the front upper swing arm and the Y axis is 15-25 degrees; the distance between the rear upper swing arm and the wheel center ranges from 60 mm to 80 mm. The distance between the rear upper swing arm and the shock absorber is larger than or equal to 10 mm. Through the constraint, the kingpin inclination angle of the rear wheel can be controlled between 3 degrees and 5 degrees, and the kingpin caster angle can be controlled between-3 degrees and-1 degrees, so that an automobile has better controllability and riding comfort.
本发明涉及一种多连杆后悬架总成及汽车,包括轴节、前上摆臂、后上摆臂、前下摆臂、后下摆臂、前束臂、减震器以及后副车架;五个摆臂的外端均连接在轴节上,五个摆臂的内端均连接在后副车架上,减震器连接在前下摆臂上;后上摆臂的内外点连线与Y轴的夹角为25至35°;前束臂的内外点连线与Y轴的夹角为5至15°;前下摆臂的内外点连线与Y轴的夹角为25至45°;前上摆臂的内外点连线与Y轴的夹角为15至25°;后上摆臂与轮心的间距为60至80mm;后上摆臂与减震器的间距大于或等于10mm。通过上述的约束,可以使后轮的主销内倾角控制在3至5°之间,并使主销后倾角控制在‑3至‑1°之间,从而可以使汽车具有更好的操控性和乘坐从舒适性。
Multi-connecting-rod rear suspension assembly and automobile
多连杆后悬架总成及汽车
2023-02-21
Patent
Electronic Resource
Chinese
IPC: | B60G VEHICLE SUSPENSION ARRANGEMENTS , Radaufhängungen und Federungen für Fahrzeuge |
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