Turbine hysteresis power-assisting compensation method, device and equipment as well as hybrid vehicle

Abstract

The invention relates to a turbine hysteresis power-assisting compensation method, device and equipment as well as a hybrid vehicle. The method comprises the following steps: calculating a theoreticalrequired power-assisting torque initial value Ts; comparing the theoretical required power-assisting torque Ts with the maximum output torque Tpmax of a P2 motor, wherein when Ts is larger than or equal to Tpmax, the required output power-assisting torque Ts' is equal to Tpmax; and when Ts is smaller than Tpmax, the required output power-assisting torque Ts' is equal to Ts; judging whether the turbine hysteresis power-assisting opportunity is activated or not; if so, outputting the required output power-assisting torque Ts'; and if not, making the power assisting be zero. The device and the equipment execute the method. The device or the equipment of the hybrid vehicle executes the method. Through the application of the scheme of each embodiment of the invention, the adverse effects of slow torque response, sudden torque change and the like on the whole vehicle caused by turbine hysteresis can be effectively avoided, and the drivability and dynamic property of the whole vehicle are improved.

Description

technical field [0001] The present disclosure generally relates to the technical field of a turbocharged engine of a P2 hybrid vehicle, and specifically relates to a turbo lag compensation method and a hybrid vehicle. Background technique [0002] A turbocharged engine is an engine with a turbocharger (turbine for short), which can use the inertial impact force of the exhaust gas discharged from the engine to drive the turbine in the turbine chamber to rotate, and the turbine drives the coaxial impeller to rotate, and the pressure is fed by the air filter. The fresh air from the cleaner pipeline makes it supercharged and enters the engine cylinder, thereby increasing the intake air volume of the cylinder and fully mixing with the fuel to increase the output power of the engine. The turbine of a turbocharged engine is a moving part with a certain inertia. It requires a high speed for normal operation. It takes a certain amount of time from the start of the turbine to the norm...

AI Technical Summary

Problems solved by technology

However, due to the inaccurate timing of providing power assistance, the power supply is too early or too late, resulting in unexpected torque, which affects the smooth operation of the vehicle

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