Electric wheel driving system integrating steering, roll preventing and driving and control method

Abstract

The invention discloses an electric wheel driving system integrating steering, roll preventing and driving. The electric wheel driving system comprises a double-rotor motor, an anti-roll gear, an L-shaped anti-roll rod and a linear motor and is characterized in that the output end of the outer rotor of the double-rotor motor is connected with a wheel, and the output end of the inner rotor of the double-rotor motor is connected with a drive gear; the anti-roll gear is located on one side of the drive gear and meshes with the drive gear; one end of the L-shaped anti-roll rod is fixedly connectedwith the anti-roll gear through a first clutch, and the other end of the L-shaped anti-roll rod is connected with a suspension; the linear motor is fixed on one side of the double-rotor motor, and the secondary end of the linear motor is connected with a steering tie rod and used for driving the steering tie rod to achieve steering; when the first clutch is in a combining state, the output end ofthe inner rotor generates resisting moment for stopping the suspension from bouncing vertically so as to prevent roll. The electric wheel driving system has the advantages that system integration isincreased, space saving is achieved, and overall-vehicle arrangement is facilitated.

Description

technical field [0001] The invention belongs to the technical field of wheel-side driving of automobiles, and in particular relates to a steering, anti-tilt and driving integrated wheel-side electric drive system and a control method. Background technique [0002] Traditional centralized drive pure electric vehicles use a powertrain consisting of a single motor and drive axle or a powertrain consisting of a single motor, transmission and drive axle to drive the vehicle. There are many transmission parts, the transmission efficiency is not high, and it takes up space. Big. [0003] The structural feature of hub drive or wheel drive is that the drive motor is directly installed in or near the drive wheel, and the motor drives the wheel directly or through a reduction mechanism. Compared with traditional cars, mechanical transmission components such as differentials are omitted, the transmission efficiency is high, the structure is compact, and the body space utilization rate ...

AI Technical Summary

Problems solved by technology

When the traditional driving form is changed to the wheel-side driving form, there are often space and movement interference problems between the three systems, so the design of the vehicle chassis system is difficult and takes a long time

In addition, the traditional stabilizer bar in the suspension system needs to be connected to the left and right independent suspension shock absorber arms. Although it can effectively prevent the body from rolling, it also sacrifices part of the ride comfort and increases the difficulty of space layout.

Most of the existing independent anti-rolling technologies are adding anti-rolling motors for each suspension separately, which takes up a lot of space and has a complicated structure

In addition, although there is independent steering technology for each wheel, the existing independent steering technology does not consider the failure of the independent steering actuator. When the independent steering of one wheel fails, the entire vehicle cannot continue to complete the steering action. big security risk

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