The invention discloses an automobile
brake controlled by a wire, which comprises a
brake disc, wherein a friction plate is arranged on each of the two sides of the
brake disc; the friction plates are fixedly connected with a
piston which can axially move along a brake caliper body and is connected with a trapezoid nut; the trapezoid nut can axially move along an inner hole of the
piston and is in fit connection with a trapezoid threaded end of a screw rod; a driving nut is movably arranged on a
ball screw section of the screw rod and is fixedly connected with a worm gear; the worm gear is engaged with a worm which is fixedly connected with an output end of a driving motor of the brake to covert the rotation motion of the driving motor of the brake into
linear motion; and the driving motor of the brake is perpendicular to a brake caliper of the brake. The automobile brake controlled by the wire has automatic regulation and parking braking functions, can improve reinforcement effect, is high in braking performance, simple in structure, convenient to
mount, easy to maintain and less in
energy consumption, and can ensure the constancy of brake response speed of a vehicle so as to further ensure the braking performance.