Abstract
Homogenous Charge Compression Ignition (HCCI) technology shows a great fuel economy potential for gasoline engine. In the project, a 4-cylinder 1.5 L PFI gasoline engine with HCCI and SI combustion mode was developed based on optimized heat management. The exhaust gas energy and coolant energy are used for heating intake air to suitable temperature as soon as possible. The exhaust turbocharger and EGR are used to expand HCCI operating range. Also cylinder pressure sensors are used for combustion feedback control and cylinder balance control. For this HCCI prototype engine, an innovative control system was developed for this complicated system. Control System has two ECUs, one ECU is for cylinder pressure sensor processing, which calculate combustion character values in real time and send to main ECU by CAN bus; another ECU is main ECU, which control injection system, ignition system, heat management system, etc. The control algorithm for mode transition between HCCI and SI was developed. Cylinder balanced algorithm base on CA50 was also developed to optimize emission and engine performance. By the optimized heat management system and control system algorithm, the HCCI engine can get 20 % fuel economy benefit in HCCI mode in part load, and also reach a wider operating range by the combination of turbocharger and EGR technology.
F2012-A01-019
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References
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© 2013 Springer-Verlag Berlin Heidelberg
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Zhang, J., Huang, Z., Yin, Q., Shen, Y., Chen, L., Lv, S. (2013). Control System Development for Gasoline HCCI Engine Which Based on Heat Management. In: Proceedings of the FISITA 2012 World Automotive Congress. Lecture Notes in Electrical Engineering, vol 189. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33841-0_7
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DOI: https://doi.org/10.1007/978-3-642-33841-0_7
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