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The Layout Design and Remanufacture of Elect Learner-driven Car Based on Santana LX

Author: Bai
Tutor: ZuoXiaoPing
School: Chang'an University
Course: Vehicle Engineering
Keywords: electric learner-driven car power matching reform layout design distribution of axle load Comprehensive performance test
CLC: U469.72
Type: Master's thesis
Year: 2012
Downloads: 27
Quote: 0
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Abstract


The driver-training school, as the important element of the road transport industry thatcarry out the plan for energy conservation and emission reduction, is just around the corner tointroduce the electric vehicle. A learner-driven car that burn fuel oil often has a low gear andsnail speed, which makes the engine work in the area of high fuel consumption and pollution,and does irreversible harm to the environment. The electric learner-driven car, as yet to bedeveloped, will play a key role in the work of energy conversation and emission reduction.Combining with functional requirement of the learner-driven car and the structuralfeatures of the electric vehicle, this paper studied to set the Santana LX which type waswidely used in the driver-training school as the prototype, introduced a kind of powertransmission. Referring to the relevant data of the driving training, it made the calculation todecide the parameters of power matching then chose the series-excided DC motor whichpower is4.2kW, and the lead acid battery which voltage is72V as the power source. Itreformed the body and made the layout design of the electric power steering, power brakingsystem, electrical system of the car. Based on the special mode of driving training,comprehensive performance tests were made, including the dynamic performance andendurance mileage performance. Its practical conclusions as follows:The motor and the flywheel were chosen to direct connection to make sure the highefficiency and compact spatial arrangement. The electric vacuum booster pump and thevacuum tank were used to meet the need of the braking power. The paper took the method ofinstalling the electric hydraulic steering system to realize the function of power steering. Itcompleted the estimated calculation of the centroid and distribution of axle load. It workedout: the estimated height of centroid declined54mm comparing with the original car; thedistribution of the front and rear axles load was58:42, which was within the allowed range.Checked the longitudinal and lateral stability of the body, the position of the centroid wasreliable.In the test of power performance, the max speed was51.2km/h; it finished the climbingtest which degree of climbing was15%, and fit the original design of value. In the operationcondition test, the driving mileage was62km, which did not reach the original requirement,owing to changing the condition frequently which made the motor’s temperature rising andthe inconsistency of the battery which lost the energy.

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CLC: > Transportation > Road transport > Automotive Engineering > A variety of automotive > Various energy vehicles > Electric vehicles
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