Automobile wheel drive anti-slip control method

Abstract

The invention provides an automobile wheel drive anti-slip control method. Based on the slippage rates of various driving wheels of a vehicle, different working ways are selected, when the slippage rates of the wheels on the two sides are different, the wheels run on a bisect adhesion road, and when the slippage rates of the wheels on the two sides are equal, the wheels run on a uniform low-adhesion road. According to one-sided slip and two-sided slip of a vehicle body, different control ways are adopted. The slippage rate is reduced by braking before torsion reduction or simultaneous torsionreduction, the vehicle body is stabilized, excess power output of an engine is reduced, the driving direction stability of a rear-drive vehicle in the acceleration process and the handling stability of a front-drive vehicle in the acceleration process are improved, the situation that drastic fluctuation of acceleration is caused by frequent regulation of an actuator cannot be caused, the gradeability of the vehicles is improved, and tyre wear, power loss and fuel consumption are reduced. An automobile anti-slip system using the method can improve the starting acceleration performance of the vehicles on the bisect adhesion road and the low-adhesion road, and further can ensure the driving comfort and the speed continuity in the starting acceleration process.

Description

technical field [0001] The invention relates to the field of anti-skidding of automobile wheels, in particular to a method for controlling anti-slip driving of automobile wheels. Background technique [0002] Facing the severe traffic safety situation, people have higher demands on the active safety of automobile driving, especially in some extreme ice and snow road conditions. The research on anti-skid control of automobile drive has become a research hotspot in the domestic automobile industry, but there is still no breakthrough in the key technology for real productization, and more emphasis is placed on the research on control logic and algorithms. At present, most of the control theories of the driving anti-skid control system focus on the control mode of braking force control and engine power output control as supplementary, without distinguishing the characteristics of the actuator itself. At the same time, many aspects are directly borrowed from the ABS control tech...

AI Technical Summary

Problems solved by technology

However, this device can only be used on ice, snow or muddy roads to have a significant effect. When equipped with this device, the friction force is increased and the speed of the car is limited, so it cannot be used for high-speed driving.

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