Test procedure proposal for EV power measurement on dynamometers Ravensburg-Weingarten University of Appl

Format:

Book

Conference/Event

Author/Creator:

Reick, Benedikt, author.

Contributor:

Engelmann, Danilo

Kaufmann, André

Conference Name:

15th International Conference on Engines & Vehicles (2021-09-12 : Capri, Italy)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

In 2019 the Institute for E-Mobility (IEM) was founded at the Ravensburg-Weingarten University of Applied Sciences (RWU). The strategic goal of the founded institute is the investigation of electrical drivetrains with a focus on the measurement of electrical and mechanical performance as well as efficiency. In a research initiative with the Bern University of Applied Sciences (BFH), different measurements are to be carried out on electric vehicles (EVs). The goal of this cooperative measurement campaign is to advance the development of reproducible and standardized measurement procedures for electric vehicles to later derive clear, transparently comprehensible and easily understandable parameters.A first measurement campaign contains chassis dynamometer performance measurements with an EV. To ensure that the universities' equipment delivers reliable results a third dynamometer is consulted. In a second step, efficiency measurements will be carried out under usage of external measurement technology. In a third and final step, data is recorded in real operation and the influence of environmental conditions (e.g. outside temperature) on power and efficiency is tested. Proposals for uniform and comparable data acquisition will be drawn up for all three measurement campaigns. This paper describes the results from the first study of the measurement campaign for power measurements of EVs on chassis dynamometers. The results presented are recorded with a "VW e-Up!" and are described in detail. Based on the processed measurement data, a first proposal for a standardized test procedure for EVs is presented. It is shown that the state-of-the art procedure for combustion engine driven vehicles cannot be applied on EVs. This statement is supported by a sensitivity analysis and the measurement results. The measurement and calculation principles required to carry out performance measurements are described in the basic section. Proposals for further improvement and detailing of the measurement procedure are presented in conclusion

Notes:

Vendor supplied data

Publisher Number:

2021-24-0104

Access Restriction:

Restricted for use by site license