Torque vector distribution system, vehicle and torque vector distribution method

Abstract

The invention discloses a torque vector distribution system, a vehicle thereof and a vehicle torque vector distribution method, and relates to a torque vector distribution technology, a torque vector distribution device and a corresponding vehicle. The system is characterized in that: a first bead tooth meshing device and a second bead tooth meshing device are connected to the two sides of a driving part, bead tooth meshing wheels are arranged on the bead tooth meshing devices respectively, the bead tooth meshing wheels are in power transmission connection with the torque output shaft in the mode that the bead tooth meshing wheels can slide along the torque output shaft, the two bead tooth meshing wheels are connected with a first shifting part and a second shifting part which can slide along the torque output shaft, and the shifting parts drive the bead tooth meshing wheels to be meshed with and separated from bead tooth rings with different diameters on the bead tooth meshing devices in a power transmission manner, so that the rotating speed, the steering direction and the static state of a wheel mounted on the torque output shaft are controlled. The system is simple and compact, more than 50% of parts can be reduced, and the space can be saved; gear shifting and clutching are completed through one component, and control convenience and reliability are improved; each wheel can be independently controlled, and the obstacle crossing performance is excellent; reverse torque can be distributed to the wheels on the two sides, so that the vehicle can smoothly turn or turn around when encountering a sharp turn or a narrow field; unmanned driving control is facilitated; and the production cost can be obviously reduced.

Description

technical field [0001] The present invention relates to torque vector distribution technology, device and corresponding vehicle. Background technique [0002] Handling is one of the important criteria for evaluating whether a car drives well. When the traditional technology vehicle is turning, the wheels on both sides are due to the relationship of centrifugal force, so that the vertical load of the wheels on both sides is transferred, and the vertical load of the wheel on the inner side of the bend is smaller than that of the outer wheel, resulting in a change in the friction between the wheel and the ground. When cornering, although the friction circle of the inner wheel becomes smaller, the traditional technology uses the method of splitting the torque equally, which results in excessive torque of the inner wheel and insufficient torque of the outer wheel, resulting in slippage and rollover Situation happens. With the improvement of people's demand for vehicle handling ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the torque vectoring differential is very heavy and complicated, expensive to manufacture, and will cause additional energy consumption, and its application is limited to Audi S4, S5 and S6, BMW X5 M and X6 M, Lexus RCF and other models

The torque vectoring rear axle control system launched by ZF can be used in four-wheel drive and rear-wheel drive vehicles. It is mainly distributed by torque vectoring on the left and right wheels. The ZF torque vectoring control unit on the BMW X5 mainly includes a planetary gear set , multi-plate wet brakes, and drive control devices, etc., because of the high cost, this kind of torque vectoring is currently only used in luxury cars

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