Static Load Test For Hydro-Pneumatic Driveline Propulsion System

Halim, Shaiful Mohammed Tashmin (2019) Static Load Test For Hydro-Pneumatic Driveline Propulsion System. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The study emphasized the effect of static load on the performance of the hydropneumatic driveline propulsion system. Hydraulic hybrid vehicle (HHV) is a new technology being developed to enhance fuel economy for passenger vehicles. However, this system is still ranked under the research and development stage. Many things regarding the performance of this system are still unclear. Therefore, research related to the effects of the static load is carried out, which is focused on passenger vehicles. In this research, the functional circuit of the charging and propulsion have been designed and simulated by using Automation Studio software. Chassis dynamometer test has been conducted to obtain performance data of hydro-pneumatic driveline propulsion system with the load imposed. Through them project, it was found that the higher the load, the longer will be the running time due to the energy capacity effect. The maximum 88.6 s running time was recorded by 200 bar pressure and 10 Nm load. It was 31% higher compared to the minimum running time recorded by 2 Nm load. The higher torque at 200 bar was 63% greater than the lowest torque at load 2 Nm. However, there was an opposite effect on the RPM where the higher the given load, the slower the revolution of the wheel. The differential percentage is about 23% slower. Throughout this study, it was concluded that the value of running time under load condition, RPM and torque generated were reasonable, and this system is applicable. For future research, if this technology is to be adopted in the passenger car, the sizing of the accumulator must be taken into consideration so it can fit in the car

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