US 12,246,569 B2
In-corner modular electric wheel system integrating adjustable king pin and king pin-type steering unit
Junnian Wang, Changchun (CN); Yitong Wang, Changchun (CN); Zidong Zhou, Changchun (CN); and Siqing Wang, Changchun (CN)
Assigned to Jilin University, Changchun (CN)
Filed by Jilin University, Changchun (CN)
Filed on Aug. 8, 2024, as Appl. No. 18/798,262.
Claims priority of application No. 202410557892.9 (CN), filed on May 8, 2024.
Prior Publication US 2024/0391285 A1, Nov. 28, 2024
Int. Cl. B60G 17/016 (2006.01); B60K 7/00 (2006.01)
CPC B60G 17/0162 (2013.01) [B60K 7/0007 (2013.01); B60G 2204/30 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An in-corner modular electric wheel system, comprising:
a wheel assembly;
a steering system;
a king pin inclination adjusting system; and
a suspension system;
wherein the wheel assembly is configured to support a load of a vehicle, transmit a driving torque and determine a toe angle and a camber angle; a drive motor and a braking system are provided inside the wheel assembly to control longitudinal acceleration and deceleration of the vehicle;
the steering system is a king pin steering system, and is configured to perform omni-directional wheel-independent steering; the steering system comprises a steering motor assembly, a king pin and a steering arm; the king pin is connected to the wheel assembly through a first pin shaft, and the steering arm is connected to the wheel assembly through a second pin shaft, so as to drive the wheel assembly to deflect to control a lateral movement of the vehicle;
the king pin inclination adjusting system is integrally sleeved on the king pin; the king pin inclination adjusting system is connected to the wheel assembly through a first connecting rod, and is connected to the suspension system through a second connecting rod; the king pin inclination adjusting system is coaxially provided with an actuator motor and a lead-screw; the lead-screw is provided with a lead-screw nut; the first connecting rod and the second connecting rod are mounted on the lead-screw nut; the actuator motor is configured to drive the lead-screw to rotate, so as to allow the lead-screw nut to move along an axial direction of the king pin to adjust an inclination of the king pin through the linkage without changing the camber angle, thereby enabling active change of a handling characteristic of the vehicle; and
the suspension system has an unequal-length double-wishbone suspension structure; the suspension system is connected to a bottom of the king pin through a ball pin, and is connected to an upper end of the king pin inclination adjusting system through a third pin shaft; the suspension system is provided with a first lug configured for mounting a steering motor base; the suspension system is further provided with a coil spring and a shock absorber.