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Optimization of a Three Wheeler LPG Vehicle for Improved Fuel Consumption, Performance and Meeting BS-III Emission Norms
Technical Paper
2013-26-0007
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes the strategies used in optimization of an existing three-wheeler Liquefied Petroleum Gas (LPG) vehicle variant for improving its fuel consumption, basic performance and meeting BS-III emission norms.
The major technical areas targeted were
- i)Redesigning of the gear ratios so that the vehicle predominantly runs in low rpm band i.e. between Peak torque and Peak power which is best SFC (Specific Fuel Consumption) region.
- ii)Optimization of intake system for LPG fuel which involves different combinations of air reducers and mixer ventury throat diameters with varying hole sizes and numbers.
- iii)Improving LPG kit from that used in the existing model to a modified one better suited for the smaller displacement engine on the vehicle.
After rigorous work on the chassis dynamometer and various trials on road the optimized vehicle managed to deliver a 20% plus improvement in fuel consumption helping close the gap considerably to competitors. Fuel consumption varied from 24 - 26 based on different traffic conditions in different cities in India and different driver habits. The power and torques also increased by 10%. Vehicle also passed BS-III emission norms more comfortably than existing model in tests conducted at certified test agency.
Authors
Citation
D'Souza, A., Shinde, B., and Sane, S., "Optimization of a Three Wheeler LPG Vehicle for Improved Fuel Consumption, Performance and Meeting BS-III Emission Norms," SAE Technical Paper 2013-26-0007, 2013, https://doi.org/10.4271/2013-26-0007.Also In
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