IMPACT OF LOAD CHANGES ON ENERGY CONSUMPTION OF DIVERSE POWERTRAIN VEHICLES UNDER REAL WORLD DRIVING IN BANGKOK. 2019-01-1399
This research studied the effects of weight variation to the power consumption of conventional ICE vehicle and Electric vehicle. The weight variations are divided into 3 variations, 10%, 20% and 30% of the vehicle weight. In addition, to represent the driving behaviors in Bangkok, the traffic profiles are also divided into 3 groups, city, suburban and highway. The experiments contain 1,345 kilometers of driving, taken over 30 days of testing and 39,000 points of data. The comparison of the energy consumption of the different variations of the vehicle weight, the variation is between 4.7–103 % for the ICE vehicle and 1.5–49% for the EV. For the cost of the ownership, the EV vehicle has the lower cost of the ownership than the ICE vehicle by 5.18 % at the condition of an addition of 30% weight. The result shows that the additional weight significantly affects the energy consumption of the vehicle. If the government supports the usage of EV by modifying EV tax incentives in the future, the cost of the ownership can be decreased to be less than the ICE vehicle. In addition, the driving test in each round at different weight variations cannot be ascertained to keep the same traffic conditions and driving behavior of the test driver. The data from the study further illustrated whether the driving patterns in different weighting cycles differ and whether that affect the estimation of the fuel consumption. It was found that, despite a difference in the traffic condition and driving behavior of the driver, the difference does not affect the energy consumption significantly.