Angle-changeable transmission device, vehicle chassis and control method thereof

Abstract

The invention relates to an angle-changeable transmission device which comprises a power output shaft, a power input shaft, a fixing rack, a swing rack and a power transmission device. The power input shaft transmits power to the power output shaft through the power transmission device to drive wheels to rotate. The transmission device can transmit power and achieve the larger deflection angle while transmitting power, and is reliable in operation. Meanwhile, the invention further provides a vehicle chassis provided with the angle-changeable transmission device. The vehicle chassis can achieve the functions of transverse traveling, four-wheel steering and on-site rotating and can improve high-speed stability and low-speed maneuverability of an automobile. The invention further provides a method for controlling the vehicle chassis to be steered under different conditions.

Description

technical field [0001] The invention relates to the field of vehicle engineering, in particular to a variable-angle transmission device, and also relates to a vehicle chassis and a control method thereof. Background technique [0002] With the rapid development of modern society and the improvement of people's living standards, the number of cars is increasing rapidly. However, with the increase of cars, the parking lots and roads in various cities are crowded. At present, most cars are front-wheel steering. (i.e. 2WS), but because the rear wheels cannot turn, when turning, the turning radius of the car is relatively large, which brings a lot of inconvenience to the majority of drivers turning and parking on narrow ground. The prior art has the method of simultaneously controlling the steering of four wheels of the automobile to make the automobile turn. In the 1980s, some automobile manufacturers once applied the four-wheel steering technology (4WS). With the development o...

AI Technical Summary

Problems solved by technology

However, the rear wheel deflection angle of the current four-wheel steering vehicle is small, and due to the limitation of the universal joint, it is impossible to realize lateral driving.

[0003] In terms of the lateral travel of automobiles, Chinese patent CN101298257B discloses a steering control method and device for lateral travel and in-situ rotation of electric vehicles. Brush hub motor or column motor to complete, instead of conventional car single-engine drive, complex structure, many fault points; secondly, in this patent, although the wheels can be driven laterally, the steering wheel is locked when traveling laterally. It cannot be adjusted in real time during driving, and is not controlled by humans; again, although all four wheels can steer, it is not the same as a four-wheel steering (4WS) car, nor can it improve the high-speed stability and low-speed maneuverability of the car

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