Investigation of HCCI Engine for Series Hybrid Electric Motorcycle

• Main Authors: Kai-Xian Hong, 洪凱賢
• Other Authors: 吳浴沂
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/c8v22h

碩士 === 國立臺北科技大學 === 車輛工程系所 === 99 === Homogeneous Charge Compression Ignition (HCCI) engine combines the advantages of high thermal efficiency of diesel engine and low emission of gasoline engine. In this study, HCCI series hybrid system includes the technologies of HCCI engine and series hybrid system. Therefore, HCCI series hybrid system can achieve the goals of lower fuel consumption and reduce emission of engine. The HCCI engine is modified by the original engine, and combines it with series hybrid system. The DC brush motor is used to front wheel which as power source. It is driven by the battery of lead-acid (48 V). The fuel system of HCCI engine is includes 92 unleaded gasoline and dimethylether (DME). At first, the 92 unleaded gasoline is used for SI mode which to reach operating temperature, and then the DME is for HCCI mode. When the battery needs charging, the generator is driven by HCCI engine which to produce the output voltage (52 V) with DC-DC converter to charge the battery. The backward-facing model is used to examine integration of target comments and the fuel economy. The simulation result from the ECE-40 driving cycle of original system and HCCI series hybrid system, the HCCI series hybrid system fuel economy can be improved 2 times than original system. In the real vehicle test in ECE-40 driving cycle the original fuel economy is 30.8 km/l, the HCCI series hybrid system at the engine operating 3500 rpm, the fuel economy is 73.7 km/l, compared to the original system the fuel economy improved 139.2 %.