Engine physical model processing method and device, storage medium and processor

Abstract

The invention discloses an engine physical model processing method and device, a storage medium and a processor. The method comprises the steps that a complex physical model of the engine is constructed based on a solid structure of the engine, the complex physical model comprises solid elements corresponding to different parts in the solid structure and elements connected with the different solid elements, and the connecting elements comprise one of the following elements: a heat conduction element, a heat exchange element and a radiation element; part of elements in the complex physical model are combined, multiple combined modules are obtained, and the multiple modules are associated with the water temperature and the oil temperature of the engine; inputting the operation parameters of the engine under different working conditions into the complex physical model, and determining target pulse spectrum parameters corresponding to the plurality of modules; the multiple modules and the target pulse spectrum parameters are combined, and a reduced-order physical model of the engine is generated. According to the method, the technical problems that the engine physical model constructed in the related technology can ensure the model precision, but the running speed cannot meet the real-time requirement of virtual calibration on the model are solved.

Description

technical field [0001] The present invention relates to the field of vehicle control, and in particular, to a method, device, storage medium and processor for processing a physical model of an engine. Background technique [0002] The controller-in-the-loop vehicle virtual calibration system is mainly composed of the standard hardware-in-the-loop system, the vehicle real-time model and the external actual controller. The actual controller includes but is not limited to: ECU (Electronic Control Unit, electronic control unit). ), TCU (Transmission Control Unit, transmission control unit) and HCU (HybridControl Unit, hybrid vehicle controller). The vehicle model (including but not limited to: engine, original exhaust, thermal management, post-processing, vehicle, motor battery, gearbox and vehicle dynamics) is compiled and downloaded to the real-time machine of the standard hardware-in-the-loop system. The real-time machine is connected through the IO interface model, and the ...

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Problems solved by technology

[0005] Embodiments of the present invention provide a processing method, device, storage medium, and processor for an engine physical model to at least solve the problem that the engine physical model constructed in the related art can guarantee the accuracy of the model, but the running speed cannot meet the requirements of virtual calibration on the model. Technical issues of real-time requirements

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