Wheel-side deceleration driving device of equal-length double wishbone suspension

Abstract

The invention relates to a wheel-side deceleration driving device of an equal-length double wishbone suspension, which belongs to the field of electric vehicles and comprises a double wishbone suspension, a motor, a synchronous belt, a small belt pulley, a big belt pulley, a small bevel gear, a big bevel gear, an axle housing, a transmission half shaft, a hub supporting member, wheels and the like, wherein one end of an upper cross arm is hinged with a vehicle frame through a rotating pair, the other end of the upper cross arm is hinged with the upper end of the axle housing on an A point through the rotating pair, one end of a lower cross arm is hinged with the vehicle frame through the rotating pair, and the other end of the lower cross arm is hinged with the lower end of the axle housing on a D point through the rotating pair. The B and the C respectively are middle points of a connecting line between hinged points of the upper cross arm, the lower cross arm and the vehicle frame, and the A, the B, the C and the D form a parallelogram. The motor is arranged on a middle point of the B and the C, the small belt pulley is arranged on an E point, the big belt pulley is arranged on an F point, the length between the E and the F stays the same during jumping process of the wheels, and the distance between the two belt pulleys does not change, thereby guaranteeing power to be steadily transported. The motor is fixed on the vehicle frame, thereby increasing select range of motor power, reducing unsprung mass of electric wheels, and effectively increasing controllability and harshness of a finished vehicle.

Description

technical field [0001] The invention belongs to the field of electric vehicles, in particular to a wheel-side deceleration driving device adopting equal-length double-wishbone suspension. Background technique [0002] With the improvement of people's living standards, cars are more and more widely used. In recent years, with the increasingly serious energy crisis and the continuous enhancement of people's awareness of environmental protection, the requirements for automobiles are getting higher and higher. Electric vehicles have incomparable advantages in energy saving, environmental protection and performance compared to traditional vehicles. They are the product of social and economic interests and energy and environmental protection requirements. They have become the mainstream of new energy vehicle development recognized by the world. [0003] Electric vehicles can be divided into centralized motor drive form and electric wheel drive form according to the different ways...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new type of equal-length double-wishbone suspension wheel side deceleration drive device for the defect of large unsprung mass of the existing electric wheel, which not only has the driving force of the electric wheel independently but can It can reduce the unsprung weight of the electric wheel and improve the maneuverability and ride comfort of the whole vehicle.

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