BRAKE CONTROL DEVICE, BRAKE CONTROL SYSTEM, AND CONTROL METHOD

This application provides a brake control apparatus, a brake control system, and a control method. This application is applied to an intelligent automobile, a new energy automobile, a conventional automobile, or the like. The brake control apparatus includes a hydraulic cylinder, a push rod, a piston, a driving apparatus, a first control valve, a second control valve, a third control valve, and a fourth valve. In this application, a plurality of valves and a specific connection manner are provided, so that two hydraulic chambers communicate with each other during forward pressure building, and the two hydraulic chambers do not communicate with each other during backward pressure building, so that there is equal hydraulic pressure in the two hydraulic chambers or a very small pressure difference, to implement seamless switching between forward pressure building and backward pressure building, and better meet a braking requirement of a vehicle. In addition, each braking circuit can be independently controlled to be open or closed, to improve safety. In other words, in the specific connection method, not only safety is improved, but also a quantity of valves is reduced as much as possible.