A bidirectional synchronous booster electromechanical brake actuator based on a rotating motor and a ball screw

Abstract

The invention provides a two-way synchronous booster electromechanical brake actuator based on a rotating motor and a ball screw used in automobiles, including a motor, a ball screw, a mounting base, a two-stage booster mechanism, and a lever booster mechanism. part; the motor is a rotating motor; the brake caliper adopts a split structure; the rectangular through groove on the top of the first booster block and the bump at the bottom of the second booster block constitute the first booster; the first slope of the second booster block and the second inclined surface of the secondary booster block are in contact with the first cylindrical roller and the second cylindrical roller respectively to form a secondary booster; one end of the lever is hinged to one end of the connecting rod, and the other end of the connecting rod is connected to the front brake caliper The rotating pin on the body is hinged, the first lever push shaft and the second lever push shaft are respectively placed in the U-shaped groove at the other end of the lever, and the lever shaft passes through the through hole for installing the lever shaft. This scheme can be used for both traditional brake systems and Active braking offers a solution, especially for the braking needs of large vehicles.

Description

technical field [0001] The invention belongs to the technical field of automobile brakes, and in particular relates to a bidirectional synchronous booster electromechanical brake actuator based on a rotating motor and a ball screw. Background technique [0002] As an important part that directly affects the safety of automobiles, the braking system has always been a research hotspot of major automobile companies; for example, the literature "Research on Electromechanical Braking and Stability Control and stability control system research [D]. Changchun: Jilin University, 2009), electromechanical braking, as an emerging braking system, abandons the bulky components such as vacuum booster and hydraulic pipeline, making the whole vehicle The chassis layout is simpler and more flexible, and it has the advantages of fast and accurate pressure adjustment, which can significantly improve the braking performance of the whole vehicle. [0003] In addition to the advantages of improv...

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Problems solved by technology

[0004] At present, electromechanical brakes are still in the research stage in our country. How to effectively reduce the volume and quality of electromechanical brake actuators on the premise of meeting the braking requirements of the whole vehicle has become the key to its popularization and application. Therefore, the present invention is Based on the previous research, a new structure of electromechanical brake actuator is proposed. The electromechanical brake actuator uses a rotating motor as the power source, which can effectively reduce the volume of the electromechanical brake actuator, and can effectively meet the needs of large The problem of large vehicle braking force demand

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