US 12,275,286 B2
Multi-link independent suspension for vehicle, and vehicle
Zhe Xu, Shanghai (CN); Haibo Wang, Shanghai (CN); Dongdong Wang, Shanghai (CN); Biao Chen, Shanghai (CN); Jun Dai, Shanghai (CN); and Xu Han, Shanghai (CN)
Assigned to NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed by NIO TECHNOLOGY (ANHUI) CO., LTD, Hefei (CN)
Filed on Nov. 29, 2022, as Appl. No. 18/059,487.
Claims priority of application No. 202111467523.3 (CN), filed on Dec. 3, 2021.
Prior Publication US 2023/0173860 A1, Jun. 8, 2023
Int. Cl. B60G 3/28 (2006.01); B60G 7/00 (2006.01); B62D 17/00 (2006.01)
CPC B60G 3/28 (2013.01) [B60G 7/008 (2013.01); B62D 17/00 (2013.01); B60G 2200/184 (2013.01); B60G 2200/46 (2013.01); B60G 2204/148 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A multi-link independent suspension for a vehicle that has a subframe and a steering knuckle, the multi-link independent suspension comprising:
a front upper control arm, a rear upper control arm and a spring control arm, wherein:
a first end of each of the front upper control arm, the rear upper control arm and the spring control arm is pivotally connected to the subframe and a second end of each of the front upper control arm, the rear upper control arm and the spring control arm is pivotally connected to the steering knuckle;
the second end of the spring control arm is arranged below the steering knuckle, and the second end of the front upper control arm and the second end of the rear upper control arm are respectively arranged above the steering knuckle;
the spring control arm is configured to move back and forth in the direction along a central axis of the spring control arm to drive the steering knuckle to rotate so as to adjust a camber angle of a wheel center;
a central axis of the front upper control arm intersects with a central axis of the rear upper control arm at a Q point, and the Q point has a coordinate that is the same as a coordinate of the wheel center in an X direction of the vehicle;
a rotation axis of the first end of the front upper control arm intersects with a rotation axis of the first end of the rear upper control arm at a P point;
a connecting line between the P point and the Q point is defined as a motion centerline PQ between the front upper control arm and the rear upper control arm; and
the motion centerline PQ coincides with a projection of the central axis of the spring control arm on an XY plane of the vehicle, so that when the spring control arm moves, the front upper control arm and the rear upper control arm remain stationary.