Reliable network-controlled power coupling system and control method for hybrid electric vehicles

Abstract

The invention discloses a trustiness network control power coupling system of a hybrid electric vehicle and a control method. The system comprises an engine, an electric generator and power control module, a driving motor and power control module, a power battery pack, a mechanical coupling device, an engine controller, an electric generator controller, a motor controller, a BMS, and a power coupling controller; the power coupling controller adopts a double-layer managing framework, a mode switching analytic layer and a switching strategy achieving layer are included, the switching strategy achieving layer adopts the control method based on real-time scheduling and process control coprocessing, and the control mode comprises the control method of switching the pure electric mode into the hybrid driving mode and the control mode of switching the pure engine mode into the hybrid driving mode. The problems that during mode switching of the hybrid electric vehicle network control power coupling system, power is interrupted, and motion impact appears are solved, and the technical support is provided for improving the vehicle dynamic property, smoothness and integration control capacity.

Description

technical field [0001] The invention belongs to the technical field of hybrid electric vehicle power system control, in particular to a reliable network-controlled power coupling system and a control method for hybrid electric vehicles. Background technique [0002] Power and ride comfort are important performances of a vehicle, and their pros and cons are closely related to the configuration and control of the vehicle's power system. A hybrid electric vehicle (HEV) is a new model that uses a dual power source coupling configuration as its power system. It involves frequent switching of the driving mode of the power coupling system during driving, so the control quality of the driving mode switching directly affects the driving of the vehicle. power and smoothness. [0003] At present, the driving control technology of the power coupling system of hybrid electric vehicles has made significant progress, and the realization of various control optimization strategies can ensur...

AI Technical Summary

Problems solved by technology

These problems will further reduce the control quality of the driving mode switching of the power coupling system, further aggravate the vehicle power interruption and switching impact, and affect the vehicle dynamics and occupant comfort

[0005] Existing methods focus on the design of the driving energy management strategy of the power coupling system of hybrid electric vehicles, and fail to fully consider the coupling control strategy of the power coupling system during mode switching, and fail to fully consider the vehicle network-induced delay and data asynchronization for the mode. The influence of real-time and synchronization of the switching process has certain limitations, which cannot meet the actual application requirements of hybrid electric vehicles

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