Effect of Real-World Driving and Drive Modes on Electric Vehicle Energy Consumption and Performance in a Tier-II Indian City
SAE-PP-00250
02/03/2021
- Content
- Electric vehicles (EVs) are tested for their driving performance, energy consumption (EC), and electric range in a chassis dynamometer laboratory as per the test procedure of the Automotive Industry Standards (AIS) in India. However, a laboratory test is different from the real-world test. In this study, the test vehicle is an experimental EV conversion car developed for the study. The EV uses a prototype conversion kit consisting of an indigenously built 3-phase induction motor and Li-ion battery pack. The study reports a detailed discussion on the real-world as well as laboratory tests conducted for the EV. It provides an intuition of the real-world tests conducted on the selected traffic routes of a Tier-II Indian city (Dehradun city) using a data logger with multiple sensors. It investigates the effect of real-world driving and different drive-modes (idling, acceleration, deceleration, and cruising) on the EC and performance of the EV. The real-world tests follow the car-chasing technique. The study shows that the average real-world EC of all-route is 145.83Wh/ km, and laboratory EC is 88.10 Wh/km. It reveals that the average real-world EC is higher than the laboratory baseline data by 41.97%, 65.40%, 89.39% on the congested, medium, and low traffic routes respectively. It also performs the analysis of percentage contribution of the drive-modes to the load current, EC, and input power using the road cycle and driving cycle analysis. This study is a novel attempt to understand and determine the EC, usability, and performance of the EV in real-world conditions on the Tier-II city roads for achieving a better driving range. It attempts to find out the energy-efficient route, the gap between the real-world EC data, and the reference laboratory data. The study highlights the importance of addressing real-world features in reviewing and improving the dynamometer cycle and future EC regulations for EVs.
- Citation
- Anthony, L., "Effect of Real-World Driving and Drive Modes on Electric Vehicle Energy Consumption and Performance in a Tier-II Indian City," SAE MobilityRxiv™ Preprint, submitted February 3, 2021, https://doi.org/10.47953/SAE-PP-00250.