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fuel consumption aware powertrain selection and optimization for a b class sedan
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نویسنده
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karamian manesh m. j. ,banagar i. ,molaei raoof z. ,moqtaderi h.
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منبع
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تحقيقات موتور - 2023 - شماره : 69 - صفحه:12 -20
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چکیده
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In the current research, we studied different powertrain options for a given b-class sedan vehicle in terms of fuel consumption target. the considered options include two engines and a base manual gearbox assuming the gear numbers and ratios can be changed. we concentrated on 5 and 6-speed gearboxes and used two parallel techniques to optimize gear ratios of the manual gearbox due to in-cycle fuel consumption which led to approximately the same results. to predict the fuel consumption in the nedc cycle, a longitudinal dynamic model of the vehicle was developed in a gt-suite environment. two approaches by which we optimized the gear ratios were a direct optimizer based on a genetic algorithm and a set of doe analysis tools provided by gt-suite software. the best result we got among all configurations was the combination of a 1500 cc turbocharged engine with a 5-speed manual gearbox with optimized gear ratios based on the doe analysis technique. in this case, we reached to 13.5% reduction in in-cycle fuel consumption.
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کلیدواژه
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optimization ,gear ratio ,in-cycle fuel consumption ,doe analysis
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آدرس
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t-one company (t-one co), bahman group, department engineering, iran, t-one company (t-one co), bahman group, department engineering, iran, t-one company (t-one co), bahman group, department engineering, iran, alzahra university, faculty of engineering, faculty of mechanical eng. dept, iran
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پست الکترونیکی
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h.moqtaderi@alzahra.ac.ir
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fuel consumption aware powertrain selection and optimization for a b class sedan
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Authors
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Abstract
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in the current research, we studied different powertrain options for a given b-class sedan vehicle in terms of fuel consumption target. the considered options include two engines and a base manual gearbox assuming the gear numbers and ratios can be changed. we concentrated on 5 and 6-speed gearboxes and used two parallel techniques to optimize gear ratios of the manual gearbox due to in-cycle fuel consumption which led to approximately the same results. to predict the fuel consumption in the nedc cycle, a longitudinal dynamic model of the vehicle was developed in a gt-suite environment. two approaches by which we optimized the gear ratios were a direct optimizer based on a genetic algorithm and a set of doe analysis tools provided by gt-suite software. the best result we got among all configurations was the combination of a 1500 cc turbocharged engine with a 5-speed manual gearbox with optimized gear ratios based on the doe analysis technique. in this case, we reached to 13.5% reduction in in-cycle fuel consumption.
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Keywords
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optimization ,gear ratio ,in-cycle fuel consumption ,doe analysis
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