Differential system

A differential system, comprising a differential and a differential disconnect mechanism, and further comprising a differential locking mechanism;

• wherein the differential disconnect mechanism is sleeved on a first output half shaft disposed on one side of the differential, the differential locking mechanism is sleeved on a second output half shaft disposed on the other side of the differential, and the two sides of the differential are connected respectively with the first output half shaft and the second output half shaft;
• the differential comprises an outer differential housing and an inner differential housing, the inner differential housing is disposed in the outer differential housing, and the outer differential housing rotates relative to the inner differential housing;
• the differential disconnect mechanism comprises a disconnect clutch, first end face teeth and second end face teeth, the first end face teeth are disposed between the outer differential housing and the inner differential housing and are movably connected with the outer differential housing, and the second end face teeth are fixedly connected with the inner differential housing;
• the disconnect clutch is connected with the first end face teeth, drives the first end face teeth to move axially and rotates synchronously with the outer differential housing, and further drives the first end face teeth to move axially relative to the second end face teeth, so as to control the first end face teeth and the second end face teeth to engage or disengage, and realize the disconnection or connection of power transmission between the outer differential housing and the inner differential housing;
• the differential locking mechanism comprises a locking clutch, third end face teeth and fourth end face teeth;
• the third end face teeth are sleeved on the second output half shaft and are movable axially only;
• the fourth end face teeth are fixedly connected with the outer differential housing;
• the locking clutch is sleeved on the second output half shaft, drives the third end face teeth to move axially, and further controls the third end face teeth and the fourth end face teeth to engage so that the second output half shaft is locked with the outer differential housing, thereby realizing a same rotation speed of the first output half shaft and the second output half shaft;
• both the disconnect clutch and the locking clutch are a bistable electromagnetic clutch, which comprises a fixed part, a movable part and an elastic part;
• the fixed part maintains a fixed position in an axial direction of the electromagnetic clutch;
• the movable part moves along the axial direction of the electromagnetic clutch, so that the electromagnetic clutch switches between an engaged position and a disengaged position;
• the elastic part is disposed between the fixed part and the movable part and is preloaded in a compressed state, and controls the fixed part and the movable part to maintain in separated positions in a natural state.