Electrorheological fluid type automobile braking device

Abstract

The invention relates to the technical field of intelligent automobiles and discloses an electrorheological fluid type automobile braking device. The electrorheological fluid type automobile braking device comprises an automobile hub. A connecting flange is arranged on one side of the automobile hub, and one side of the automobile hub is fixedly connected with an axle through the connecting flange. By means of the electrorheological fluid type automobile braking device, the arrangement that an inner cavity of a sealed box body is filled with electrorheological fluid is adopted, meanwhile, a negative electrode ring-shaped plate and a positive electrode ring-shaped plate are utilized, electric fields with different strength can be applied to the electrorheological fluid in an inner cavity ofthe sealed box body, and therefore the viscous damping force of the electrorheological fluid is changed, and the phenomenon that a friction ring-shaped plate on the axle rotates, and consequently anautomobile is decelerated or stopped is effectively avoided. By means of the electrorheological fluid type automobile braking device, mechanical losses do not exist, the device completely relies on the viscous damping force generated by the electrorheological fluid in the electric field with different strength, meanwhile, noise pollution cannot be generated, the corresponding speed of the whole braking device is sensitive, the braking effect is good, and the service life of a machine in the braking device is long.

Description

technical field [0001] The invention relates to the technical field of smart cars, in particular to an electrorheological fluid brake device for cars. Background technique [0002] Electrorheological fluid is a colloidal system whose shear strength is continuously adjustable under the control of an electric field. Under the action of an external electric field, it can be polarized by fixed particles and interact with each other in a millisecond-level instant to form a colloid parallel to the electric field. It has a chain or columnar structure, and can be solidified when reaching a certain threshold, so that it has a large viscous damping force, and has a wide application prospect in the field of mechanical engineering. [0003] However, the existing mechanical brake devices rely entirely on mechanical friction to meet the needs of automobile braking. During use, the wear of the friction plate is relatively large, and it is accompanied by certain noise pollution. At the same...

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Problems solved by technology

[0005] The invention provides an electrorheological fluid type automobile braking device, which has the advantages of no mechanical wear, no noise pollution, fast response speed, long service life and good braking effect, and solves the problem of the existing mechanical braking system. The device completely relies on mechanical friction to meet the needs of automobile braking. During use, the friction plate wears a lot, and it is accompanied by a certain amount of noise pollution. During the process, the brake failure and the braking effect become worse, which has certain potential safety hazards.

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