The present study focuses on the experimental investigation on the effect of fuel injection strategies on LTC with gasoline on a\nsingle-cylinder CI engine. Firstly, the engine performance and emissions have been explored by sweeping SOI1 and split percentage\nfor the load of 0.9MPa IMEP at an engine speed of 1500 rpm. Then, the double-injection strategy has been tested for load expansion\ncompared with single-injection. The results indicate that, with the fixed CA50, the peak HRR is reduced by advancing SOI1 and\nincreasing split percentage gradually. Higher indicated thermal efficiency, as well as lower MPRR and COV, can be achieved\nsimultaneouslywith later SOI1 and higher split percentage.As split percentage increases,NO
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