Signal generating method and controlling method of eddy current retarder braking force

Abstract

The invention relates to the technical field of braking force control, and provides a signal generating method and controlling method of eddy current retarder braking force. The method includes the steps that an automobile load parameter is detected, a mass center location parameter is calculated at the same time, then, a signal parameter calculation formula of the eddy current retarder braking force is generated according to change information of the braking force distribution requirement for mounting a double-axle automobile front axle and a double-axle automobile rear axle by an eddy current retarder, afterwards, vector calculation is carried out on the signal parameter calculation formula of the eddy current retarder braking force, and the distribution ratio of the maximum braking force, the minimum braking force and main brake braking force is acquired. According to the signal generating method and controlling method of the eddy current retarder braking force, a set of eddy current retarder braking force calculation formula and signal generating method based on a load is formed, the brake performance of an automobile under various loads can all meet corresponding regulation requirements, and meanwhile the driving safety performance of the automobile is also improved.

Description

technical field [0001] The invention belongs to the technical field of braking force control, and in particular relates to a method for generating and controlling a braking force signal of an eddy current retarder. Background technique [0002] At present, the control methods of the braking torque of the eddy current retarder are all aimed at the two-axle vehicle whose braking force distribution ratio β of the front and rear main brakes is a fixed value. After installing the eddy current retarder, the utilization adhesion coefficients of the front and rear axles of the car respectively produced and The amount of change (where F is the retarder braking force), has a certain impact on the braking stability of the car, from Look at the formula, the amount of change It is not only related to the braking force F of the eddy current retarder, but also related to the weight G of the car and the braking force distribution ratio β of the front and rear main brakes. [0003]...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for generating a braking force signal of an eddy current retarder, aiming at solving the problem that the braking force distribution ratio β of the front and rear main brakes of a two-axle vehicle in the prior art adopts a fixed value, and the electric current cannot be adjusted with the change of the load. The braking force of the eddy current retarder and the distribution ratio of the braking force of the front and rear main brakes can only ensure the braking safety requirements under full load conditions, but cannot guarantee the safety of braking under no-load or light load conditions.

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