Brake system, hydraulic apparatus, and vehicle

A hydraulic apparatus, wherein the hydraulic apparatus comprises:

• a booster (2), at least one second control valve (21, 22, 23, and 24), at least one third control valve (31, 32, 33, and 34), at least one fourth control valve (41, 42, 43, and 44), a first control unit (91), a second control unit (92), at least one first interface (4), at least one second interface, and at least one third interface;
• a first end of the at least one third control valve (31, 32, 33, and 34) is respectively connected to the at least one first interface (4);
• a second end of the at least one third control valve (31, 32, 33, and 34) is connected to the at least one second interface, and the at least one second interface is configured to be connected to a master cylinder;
• the second end of the at least one third control valve (31, 32, 33, and 34) is further connected to the booster (2) through the at least one second control valve (21, 22, 23, and 24);
• the booster (2) is connected to the at least one third interface, and the at least one third interface is configured to be connected to a brake fluid reservoir;
• a first end of the at least one fourth control valve (41, 42, 43, and 44) is connected to the at least one first interface, and a second end of the at least one fourth control valve (41, 42, 43, and 44) is connected to the at least one third interface;
• the at least one third control valve (31, 32, 33, and 34) is configured to be controlled by the first control unit (91);
• the at least one second control valve (21, 22, 23, and 24) comprises at least one first booster branch control valve (21 and 22) and at least one second booster branch control valve (23 and 24), the at least one first booster branch control valve (21 and 22) is configured to be controlled by the first control unit (91), and the at least one second booster branch control valve (23 and 24) is configured to be controlled by the second control unit (92);
• and
• the booster (2) is configured to be separately controlled by the first control unit (91) and the second control unit (92).