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南京工程學(xué)院車輛工程系本科畢業(yè)設(shè)計(jì)(論文)
ABSTRACT
The complex conditions of the urban public transport vehicles, which require frequent stops, cause a lot of energy consumption in the braking. For this issue, the task aimed to design a mechanism for braking energy recovery and second traction, is achieved, in company with the purpose of vehicle starting power and economical fuel consumption.
By referring to documentation, the structure of hybrid system and the characteristics of the operation condition of urban public transport are mastered very thorough, as well as the flywheel braking energy recovery and reuse. A YBL6110GH model is the basis on transmission, main reducer, differential and flywheel mechanism of materials, dimensions, tolerances and other data for the design and strength check.
According to the selected diesel engine of Shanghai Diesel Engine Co., Ltd. SC8DK230Q3, part of the structure parameters from transmission, final drive, differential and the flywheel are designed, which also meets the design requirements through strength check. Design results show that the energy absorbed by the flywheel can be used for vehicle starting to achieve the objective of starting power, which is effective in economical fuel consumption. In the last, several two-dimensional parts drawings and an assembly drawing are done by using AutoCAD.
The dynamic allocation routes of transmission system are analyzed, the main structure parameters of the transmission, final drive and differential are designed, the flywheel mechanism for braking energy recovery and second traction is added, the theory of a growth rate mechanism constituted by two rows of planetary gear is proposed, the purpose of starting power and economical fuel consumption is achieved.
Keywords: Vehicle Engineering,Hybrid Power,Energy Recovery,High-speed Flywheel
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