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High Fuel Economy CIDI Engine for GM PNGV Program
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 04, 2002 by SAE International in United States
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A compact, lightweight compression-ignition engine designed for high fuel economy and low emissions was developed by ISUZU for the GM PNGV vehicle. This engine was the key component in the selected parallel hybrid vehicle powertrain for the 80 mpg fuel economy target. The base hardware was derived from a 1.7 Liter, 4-cylinder engine, and a three-cylinder version was created for the PNGV application. To achieve the required high efficiency, the engine used lightweight components thus minimizing weight and friction. To reduce exhaust emissions, electromechanical actuators were used for EGR, intake throttle, and turbocharger. Through careful application of these devices and combustion development, stringent engine out exhaust emission targets were also met.
CitationUematsu, Y., Nakada, T., Zhang, L., Ichikawa, H. et al., "High Fuel Economy CIDI Engine for GM PNGV Program," SAE Technical Paper 2002-01-1084, 2002, https://doi.org/10.4271/2002-01-1084.
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