Hybrid electric vehicle electric brake control method and device and hybrid electric vehicle

The embodiment of the invention provides a hybrid electric vehicle electric braking control method and device and a hybrid electric vehicle, and belongs to the technical field of new energy vehicles. The method comprises the following steps: acquiring the maximum allowable charging power of a power battery and a system demand torque; when the maximum allowable charging power of the power battery and the system demand torque meet a first preset condition, forbidding starting of the engine; acquiring the feedback torque of the driving motor, and calculating first feedback power of the driving motor according to the feedback torque of the driving motor; determining the target feedback torque of the driving motor and the discharge target power of the generator according to the first feedback power of the driving motor and a second preset condition; and controlling the driving motor to take the target feedback torque of the driving motor as the output torque, and controlling the generator to drive the engine to idle according to the discharge target power of the generator. The generator is used for dragging the engine to idle to discharge so as to control electric braking, the service life of a battery and a mechanical brake is effectively prolonged, cost is low, and control is easy.