Brake-by-wire device with redundancy function and control method

The invention relates to the technical field of automobile braking, and discloses a brake-by-wire device with a redundancy function and a control method.The brake-by-wire device comprises a rotating device, a transmission device and a control device.The rotating device comprises a brake disc, and a circular axle through hole is formed in the surface of one side of the brake disc; the transmission device comprises calipers, a connecting disc, a brake pad and a connecting spring, the control device comprises an electricity storage box, motors, a connecting plate and an electric telescopic rod, the two motors are arranged in the electricity storage box, and a signal switching unit is arranged in the electricity storage box. According to the brake-by-wire device with the redundancy function and the control method, the redundancy function is achieved through the use of the double motors, rotation of the brake disc drives rotation of an operation assembly in the first piston at the lower end, it is guaranteed that