Influence on Electric Vehicle Performance by Reproduced Real-World Driving Wind on a Chassis Dynamometer National Traffic Safety and Environment Laboratory

Format:

Book

Conference/Event

Author/Creator:

Okui, Nobunori, author.

Conference Name:

SAE Energy and Propulsion Conference (2025-10-14 : Ypsilanti, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

The latest electric vehicles (EVs) have advanced thermal management systems to regulate heat distribution across the vehicle, thereby improving the driving range. the author thinks that a key factor, which is influencing thermal performance during driving, is the effect of the driving-wind. However, EVs performance is evaluated by using a chassis dynamometer (CHDY), where it remains unclear whether the driving-wind specifications, which defined in the Worldwide Harmonized Light Vehicles Test Procedure (WLTP), adequately replicate real-world conditions.This study investigates both internal combustion engine vehicles and several electrical vehicles to estimate the potential discrepancies in WLTP's driving wind requirements. Specifically, the author modified the CHDY vehicle-cooling fan to more accurately simulate wind speed at the front and underside of the vehicle under real-world driving conditions, which drove at outside road. The author analyzed the impact of these modifications, and future considerations for refining the driving-wind at CHDY testing were discussed

Notes:

Vendor supplied data

Publisher Number:

2025-01-0410

Access Restriction:

Restricted for use by site license