Control device for gearbox

A control device for a gearbox which comprises a mechanical pump and an electric pump, the control device comprising:

• a sensor module configured to detect a system oil pressure of a lubricating oil of the gearbox;
• a differential;
• a clutch;
• a brake;
• and
• a control module, wherein:
• the differential comprises an input bevel gear meshing with a bevel pinion of an output shaft of the gearbox, a differential housing connected to the input bevel gear, and a first half shaft and a second half shaft which are provided in the differential housing and mesh with a bevel pinion of the differential housing, wherein the second half shaft is connected to an input of the mechanical pump,
• the brake comprises a brake caliper, a brake disc, and a brake disc shaft fixedly connected to the brake disc, wherein the brake disc shaft is fixedly connected to the first half shaft,
• an outer disc of the clutch is connected to the differential housing, and an inner disc of the clutch is sleeved on the first half shaft, and
• the control module is configured to actuate, when the system oil pressure is below a system oil pressure threshold, the brake caliper to clamp the brake disc and release the clutch, such that a rotation speed of the first half shaft is zero, and a rotation speed of the second half shaft is twice that of the differential housing, and the control module is configured to release the brake caliper and close the clutch when the system oil pressure is above the system oil pressure threshold, such that the inner disc and the outer disc rotate synchronously, and the rotation speed of the first half shaft is the same as that of the second half shaft.