SUSPENSION DEVICE FOR AN IN-WHEEL MOTOR DRIVEN WHEEL

摘要

A suspension device for an in-wheel motor driven wheel ensures a lever ratio and stroke of a shock absorber without setting the upper end portion of the shock absorber at a high position. A wheel driven by an in-wheel motor unit is suspended on a vehicle body via a suspension structure member and a shock absorber, the suspension structure member including an upper suspension arm pivotally supported with respect to the vehicle body, and a third link. The third link pivotally connects the upper suspension arm to the wheel while having a shock absorber connecting portion to which the lower end of the shock absorber is connected. Further, the shock absorber connecting portion is disposed in the vehicle bottom position lower than an upper end surface of the in-wheel motor unit.

主权项

1. A suspension device for an in-wheel motor driven wheel in which a wheel driven by an in-wheel motor unit is suspended on a vehicle body via a suspension structure member and a shock absorber, the suspension structure member comprising:
a suspension arm disposed in the vehicle upper position higher than an axle of the wheel and being configured to pivotally support the wheel with respect to the vehicle body at the vehicle upper position higher than the axle; a lower suspension arm disposed in the vehicle lower position lower than the axle of the wheel and being configured to pivotally support the wheel with respect to the vehicle body in the vehicle bottom position lower than the axle; and a link member having an arm connecting portion pivotally connecting a wheel side end portion of the upper suspension arm in the vertical direction, a wheel supporting portion pivotally supporting the wheel in a steering direction, and a shock absorber connecting portion connected to the lower end of the shock absorber, the shock absorber connecting portion being disposed in the vehicle bottom position lower than an upper end portion of the in-wheel motor unit