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.