复合鼓式制动器及其控制方法

By using a "one-line dual-use" design and hybrid excitation control for the composite drum brake, the problems of low integration, thermal fade, and insufficient safety redundancy in commercial vehicle braking systems have been solved, achieving braking stability and safety across the entire vehicle speed range.

CN122191217BActive Publication Date: 2026-07-17HEBEI VOCATIONAL & TECH UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEBEI VOCATIONAL & TECH UNIV OF SCI & TECH
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing commercial vehicle braking systems suffer from problems such as large space occupation, low integration, easy heat fade at high speeds due to friction braking, low-speed braking force decay of electric eddy current retarders, and insufficient safety redundancy design.

Method used

A composite drum brake is adopted, and the power generation and electromagnetic auxiliary functions are integrated through the "one line, two uses" design of the generator coil. Combined with magnetic friction plates and through-type heat dissipation air duct, the braking force compensation is optimized by using a hybrid excitation control strategy, and a triple braking safety redundancy design is constructed.

Benefits of technology

The system integrates multiple functions of the braking system within a limited space, improving space utilization, enhancing braking performance, ensuring braking stability and safety across the entire vehicle speed range, preventing heat fade, and providing safety redundancy.

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Abstract

本发明提供一种复合鼓式制动器及其控制方法,涉及汽车制动系统技术领域。复合鼓式制动器包括制动鼓、制动蹄、缓速转子、共用定子及切换电路;制动鼓外侧布置永磁体并作为发电转子旋转;制动蹄设置于制动鼓内侧,摩擦片采用导磁材料;缓速转子套设于制动鼓外侧并刚性同轴连接;共用定子集成发电线圈与缓速线圈,发电线圈连接切换电路,配置为在发电模式下产生感应电流,在电磁辅助模式下产生磁吸力;共用定子上的进风孔、缓速转子上的排风孔与永磁体间隙形成贯通式散热风道。本发明实现了摩擦制动、电涡流缓速、自励发电与电磁辅助制动的高度集成,解决了制动系统空间占用大、低速制动力衰减及散热难的问题,提升了制动安全性与能量回收效率。
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