Magnetorheological fluid brake and control method therefor

A magnetorheological fluid brake, comprising

• a main housing (8),
• an inner rotor (15),
• an outer rotor (14),
• a side housing (4),
• a heat exchanger,
• a sealing portion and
• a distribution passage, the outer rotor (14) and the inner rotor (15) being arranged in sequence in the main housing (8), and a shaft (1) passing through the inner rotor (15);
• the side housing (4) being arranged on one side of the main housing (8), and the distribution passage being arranged inside the side housing (4);
• the heat exchanger (9) being arranged on an other side of the main housing (8), wherein
• the distribution passage comprises a high-pressure oil channel (21) and a low-pressure oil channel (5);
• an oil filling port (7) is in communication with the high-pressure oil channel (21), and the low-pressure oil channel (5) is in communication with an oil discharge port (6);
• the high-pressure oil channel (21) is provided with a high-pressure oil port (28), and the low-pressure oil channel (5) is provided with a low-pressure oil port (26);
• the high-pressure oil port (28) and the low-pressure oil port (26) are in communication with each other through a flow-through channel;
• a first field coil module (27) is provided in the high-pressure oil port (28), a second field coil module (29) is provided in the low-pressure oil port (26), and a third field coil module (30) and a fourth field coil module (31) are provided in the flow-through channel;
• a bearing end cover (11) is connected to the main housing (8) via a screw (12), a connecting disc (34) is connected to the shaft (1) via a splined connection, wheel fixing bolts (35) are mounted to the connecting disc (34), a wheel is connected to the brake via the wheel fixing bolts (35), and a bolt (36) is fixed to the shaft (1) to axially position the connecting disc (34);
• and a silicon steel plate (38) is fixed on a side of the inner rotor and the outer rotor and connected to the main housing (8) via a countersunk screw.