A fully automatic parking device and method for electric wheel vehicles

Abstract

The invention discloses a full-automatic parking device of an electric-wheel automobile. The full-automatic parking device comprises wheels, wheel hub motors, lock pin driving mechanisms and a vehicle controller. The wheels are connected to an automobile body by adoption of independent suspension frames. The wheel hub motors are mounted in the wheels and used for driving the wheels to independently rotate. The lock pin driving mechanisms utilize lock pin driving motors to be inserted into or exit out of lock pins at center-line through holes of rear shaft steering transverse pull rods selectively and are used for locking or unlocking the rear shaft steering function. The vehicle controller controls the lock pin driving motors to work, receives all sensor signals and formulates a parking strategy according to the signals so as to control the wheel hub motors to rotate. The parking algorithm is higher in automation degree, under the premise that safety is ensured, the needed space for parking is reduced, and convenience is improved; and certain application prospects are also achieved in traditional automobiles.

Description

Technical field [0001] The invention relates to the field of automobile technology. More specifically, the present invention relates to a fully automatic parking device and method applied to a four-wheel drive in-wheel motor vehicle. Background technique [0002] With the increasingly serious environmental pollution and the exhaustion of fossil energy, automobiles are bound to embark on the road of new energy. At present, common electric vehicles are driven by electric motors, wheel-side motors and wheel hub motors. Among them, the in-wheel motor-driven car integrates the electric motor, brake system, and even the suspension and controller inside the wheels, which greatly simplifies the chassis structure of the car and creates more space for the car. Some traditional car technologies, such as four-wheel drive, In-situ steering, etc., can be easily realized in in-wheel motor-driven vehicles, which greatly reduces the technical difficulty. It can be said that the in-wheel motor ...

AI Technical Summary

Problems solved by technology

Although this method has been applied to mass-produced cars, its shortcomings are obvious: only the front wheels are steering wheels, and the turning radius of the car is large, resulting in strict requirements for parking space; The problem is that the parking space cannot be very small, which wastes the space resources of the parking lot

Moreover, the current parking technology generally only controls the steering system, and the control of the vehicle speed is done by the driver. It belongs to semi-automatic parking technology, and there is still room for improvement.

Images