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Analysis of Stumble of Manual Transmission Vehicle during Standing Start  

Kang, Jae-Hoon (Hyundai & Kia Corporate Research & Development Division)
Kim, Tak-Soo (Hyundai & Kia Corporate Research & Development Division)
Park, Kyung-Suk (School of Mechanical Engineering, Kumoh National Institute of Technology)
Han, Tae-Sik (Hyundai & Kia Corporate Research & Development Division)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.3, 2009 , pp. 102-109 More about this Journal
Abstract
The stumble (abrupt and big acceleration decrease) occurring in manual transmission vehicle while standing start is analyzed by simulation model. This model was verified by comparing to test results. Mechanism of the stumble is clarified by analyzing simulation results and the key mechanism of the stumble is angular vibration of powertrain including wheel and tires. As a result, several method that can reduce the stumble is proposed by carrying out parametric study, increasing low end torque of engine, increase gear ratio etc.
Keywords
Stumble; Simulation model; Angular vibration;
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  • Reference
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