A kind of hub motor drive vehicle suspension system

Abstract

The invention discloses a hub motor driven automobile suspension system, which belongs to the technical field of new vehicle suspensions. Among them, the main suspension system is connected with the vehicle body through the upper lug A, the lower end of the main suspension system is connected with the connecting rod B in the V-shaped linkage mechanism through the lower lug A, and the other end of the connecting rod B is connected through a rotatable rotating shaft. The point is hinged with the connecting rod A, and the other end of the connecting rod A is hinged with the hub motor stator shell; the two ends of the shock absorber C are respectively hinged with the middle part of the connecting rod A and the connecting rod B; The lower lug B of the shock absorber B is fixed to the steering knuckle, and the upper end is hinged to the middle part of the connecting rod A in the V-shaped linkage mechanism through the upper lug B of the shock absorber B. When the vehicle is excited by the road surface, the main suspension system, the auxiliary suspension system and the shock absorber C are connected through the V-shaped bar mechanism, so as to realize linkage vibration reduction. The invention can better reduce problems such as vertical vibration caused by the drive of the hub motor, and effectively improve the ride comfort and safety of the whole vehicle.

Description

technical field [0001] The invention relates to an automobile suspension system driven by a hub motor, belonging to the technical field of vehicles. Background technique [0002] At present, with the introduction of relevant policies and standards, traditional power vehicles are gradually transitioning to new energy vehicles. The latter is significantly simpler than the former in terms of mechanical and electrical structures. The traditional engine is replaced by the system integration of the electric motor and the battery. However, there is still a bigger problem that bothers the researchers. In addition to the corresponding simplification of the gearbox structure, the transmission system is still very complicated. At present, in-wheel motor drive technology has been applied in some new energy vehicles and has made good progress. If the in-wheel motor technology can be fully promoted, it will be able to replace the existing transmission system of the car, greatly simplif...

AI Technical Summary

Problems solved by technology

However, there are still some technical difficulties in wheel hub motor technology, such as increasing the unsprung mass of the car and the moment of inertia of the wheel hub, which makes it more difficult to suppress the vibration in the vertical direction of the car, affecting comfort, ride comfort and handling stability

[0004] In addition, the structural size of the wheel rim limits the outer diameter size, and the suspension structure of the car limits the axial size; the heat dissipation conditions of the hub motor are poor, and it is necessary to solve the heat dissipation problem of the hub motor under overload conditions, etc.

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