Brake-by-wire system, control method, storage medium and terminal

Abstract

The invention discloses a brake-by-wire system, a control method, a storage medium and a terminal, comprising a first booster cylinder and a second booster cylinder; the first booster cylinder is arranged between the first isolation valve and the third isolation valve , the first cavity of the first booster cylinder is communicated with the output circuit of the third isolation valve, the second cavity of the first booster cylinder is communicated with the input circuit of the first isolation valve, and the first booster cylinder is set to enter the mechanical In the backup state, the brake pressure of the first chamber of the brake master cylinder is boosted; the second chamber of the second booster cylinder is communicated with the input circuit of the second isolation valve, and the second booster cylinder is set to enter the mechanical backup In the state, the brake pressure in the second chamber of the master cylinder is boosted, so that the pedal stroke increases and the pedal force decreases. The invention increases the brake pedal stroke during mechanical backup braking, and avoids the panic of the driver that the pedal cannot be stepped down due to the shortened pedal stroke in an emergency.

Description

technical field [0001] The present invention relates to the technical field of vehicle brake-by-wire, and in particular, to a brake-by-wire system, a control method, a storage medium and a terminal. Background technique [0002] see figure 1 , In the traditional technology, when the brake-by-wire system encounters a serious electrical failure, it will enter a purely mechanical backup state. At this time, the simulator control valve is closed and the first chamber of the brake master cylinder and the pedal simulator cylinder are cut off, and the valve is isolated at the same time. 3. The isolation valve 4 is opened, the isolation valve 1 and the isolation valve 2 are closed, so that the first chamber of the brake master cylinder is communicated with the brake wheel cylinder 1 and the brake wheel cylinder 3, and the second chamber of the brake master cylinder is connected with the brake wheel cylinder. 2. The brake wheel cylinder 4 is connected. At this time, the braking pres...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a brake-by-wire system, control method, storage medium and terminal. By improving the brake-by-wire hydraulic circuit system, the pedal feel of the driver can be simulated, and the pedal stroke can be significantly shortened when the mechanical backup working condition is solved. Give the driver the technical problem of subjective feeling that the foot feels hard and difficult to step on

Images