The invention belongs to the technical field of
automatic control and particularly relates to a device and method for controlling the torque output of a
hybrid electric vehicle. The device for controlling the torque output of the
hybrid electric vehicle is composed of a
CAN bus, a
preprocessor, a demand torque prediction module and an equivalent fuel consumption solving module, wherein the
preprocessor, the demand torque prediction module and the equivalent fuel consumption solving module are sequentially connected, and the
CAN bus is respectively connected with the
preprocessor, the demand torque prediction module and the equivalent fuel consumption solving module. According to the device and method for controlling the torque output of the
hybrid electric vehicle, by solving the minimum value of the equivalent fuel consumption objective function, the engine torque and the
motor torque needing outputting at the moment in a future control cycle are obtained and sent to an engine and a motor respectively through the
CAN bus. Control of the torque output of the hybrid electric vehicle is achieved, the potential of low fuel consumption and
low emission of the hybrid electric vehicle is fully utilized, and the requirements for saving
petroleum energy, protecting the atmospheric environment and reducing emission are achieved.