Electromagnetic hydraulic brake for automobile

Abstract

The invention provides an electromagnetic hydraulic brake for an automobile, wherein a brake master cylinder and a brake wheel cylinder of a hydraulic braking part are communicated through a hydraulic pipeline; one opposite ends of two brake shoes are hinged on a brake bottom plate, and the other ends of the two brake shoes abut against a piston of the brake wheel cylinder; and return springs arearranged at the inner sides, far from the hinged ends, of the two brake shoes. The electromagnetic hydraulic brake provided by the invention is characterized in that an electromagnetic actuating partis additionally arranged; the electromagnetic actuating part comprises a fixed iron core, a movable iron core, an electromagnetic coil and a piston push rod; wherein the fixed iron core and the movable iron core are arranged in a band-type brake manner; the electromagnetic coil is sleeved on the fixed iron core which is fixed on a chassis; and one end of the piston push rod is hinged on the movable iron core, and the other end of the piston push rod passes through an open slot on the fixed iron core in a gap manner so as to be fixedly connected with a piston rod of the brake master cylinder. According to the invention, not only can the response speed and control accuracy of the brake be improved, but also the complexity of an oil passage is reduced; and the electromagnetic hydraulic brakeprovided by the invention is simple to operate and convenient to maintain.

Description

technical field [0001] The invention provides an electromagnetic hydraulic brake for automobiles, which belongs to the technical field of vehicle braking. Background technique [0002] At present, automobile brakes mainly include hydraulic brakes, electromagnetic brakes and pneumatic brakes according to the structure of transmission devices. Hydraulic brakes are devices that use manpower or an engine as a power source to pressurize the oil to generate braking force. It is very common at present. The disadvantage is that if only relying on manpower as the braking source will cause driver fatigue, and hydraulic brakes are used. Or the air brake system has complex structure and high cost. An electromagnetic brake is a device that relies on an electromagnetic field to generate braking force. Harbin Institute of Technology proposed an electromagnetic brake model in the article "Analysis of the Dynamic Characteristics of a High-speed Electromagnetic Brake". The brake does not us...

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Problems solved by technology

Harbin Institute of Technology proposed an electromagnetic brake model in the article "Analysis of Dynamic Characteristics of a High-Speed ​​Electromagnetic Brake". Requires higher current or more coil turns, which increases brake energy consumption and brake size

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