PHEV節能控制策略研究與HIL模擬驗證

Abstract

本研究將針對插電式複合動力車輛系統，發展一套節能控制策略，在不同車輛狀態及需求下，有效率地操縱動力單元驅動車輛，以達到最佳的性能表現及更低的污染排放。同時，為能有效預防失效及危害的發生，減少系統除錯所帶來的時間成本。將在離線環境下，利用模型迴路模擬，測試上述控制策略，並將策略燒錄在複合動力控制單元。利用AVL動力系統測試平台，以真實硬體取代部份虛擬車輛模型，進行全尺寸複合動力車輛系統硬體迴路測試。模擬車輛在各種路面運行工況，分析動力系統的真實回饋並驗證控制策略有效性。如此，在原型車試裝之前，就得以除去大部分的系統失效與安全危害，確保所發展控制策略之穩健度及完備性，及最終產出實車達到車型目標規格。

This study focus on developing a stable, complete, and energy-efficient control strategy for specific PHEVs. Under different driving conditions and requests, the power units can drive the mobile efficiently, accomplish best performance and reduce the exhaust emissions. The control strategy would be very complicated to realize the functional requirements. There are increasing risks from systematic failures caused by logic defects and random hardware failures. To prevent failures and avoid hazards effectively before the mule car is assembled, and reduce the time spent on system debugging. This study also proposes a validation process for the control strategy embedded in PHEVs. The strategy can be continuously verified if it fulfills the system requirements during the early phase of automotive development. At first, implement model-in-the-loop simulation with ASM vehicle dynamics model on offline PC. To certify whether the strategy meet the functional requirements, and burn it to hybrid control unit (HCU). At last, set up the full-scale powertrain testbed, build the virtual vehicle model in AVL Inmotion, and communicate HCU with AVL PUMA system. Using hardware-in-the-loop simulation, to imitate real-life driving situations, analysis the actual feedback of the powertrain system, and validate effectiveness of the control strategy. In this way, most of the failures and hazards can be eliminated before the mule car is assembled. In order to confirm the completeness of the developed control strategy.