Vehicle brake control device and method

Abstract

The invention relates to a vehicle brake control device. The vehicle brake control device comprises an angle sensor and an eddy current retarder excitation winding working sequence controller which is electrically connected with the angle sensor and an eddy current retarder, wherein the angle sensor comprises a rotating shaft and a shell; the rotating shaft and the shell are provided with angle sensing components respectively; the angle sensing components are used for measuring the angle change when the rotating shaft and the shell are rotated relative to each other; and the eddy current retarder excitation winding working sequence controller is a logic control circuit and is used for controlling the working state of the original eddy current retarder excitation winding working control circuit of a vehicle according to brake angle information transmitted by the angle sensor. The vehicle brake control device exerts the effect of the eddy current retarder completely, reduces the abrasion of a brake shoe of a main brake and the heat fading of the braking efficiency as far as possible, prolongs the working life of the eddy current retarder, has a simple structure and low price, is convenient to butt, and conforms to a driving operation habit.

Description

Technical field [0001] The invention relates to the technical field of vehicle brake control, in particular to a new type of vehicle brake control device and control method. Background technique [0002] At present, when the eddy current retarder of most automobiles works in conjunction with the original service brake of the vehicle, the following problems generally exist: [0003] When the brake pedal is controlled, the eddy current retarder works in parallel with the vehicle's original service brake all the way-when the pedal is stepped on, it enters the braking state at the same time; when the pedal is released, the braking state is released at the same time. [0004] This full-process synchronous working mode fails to reduce the working frequency of the main brake friction lining, and cannot give full play to the role of the retarder. [0005] The working sequence of the excitation windings of the eddy current retarder is fixed, which results in a large difference in the working f...

AI Technical Summary

Problems solved by technology

[0010] The retarder control method described above, due to the consideration of multiple factors, the system is relatively complex, and the reliability and stability of the work have yet to be tested in practice

As far as the former two are concerned, there are still the following problems in the independent control of the main brake and the eddy current retarder of the braking system: 1. Each device of the braking system requires a certain operation by the driver, and this operation is usually Different from the traditional braking operation mode, in addition to increasing the labor intensity of the driver, it is also easy to cause misoperation during the braking process; 2. The independent operation of each device in the braking system is not conducive to mutual interaction during the braking process of the car. With coordinated work, it is easy to cause excessive braking - affecting ride comfort, or insufficient braking - affecting driving safety

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