This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Performance Characterization of Electrified Powertrain Motor-Drive Subsystem
- Ground Vehicle Standard
- J2907_201802
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This document was developed to provide a method of obtaining repeatable measurements that accurately reflects the performance of a propulsion electric drive subsystem, whose output is used in an electrified vehicle regardless of complexity or number of energy sources. The purpose is to provide a familiar and easy-to-understand performance rating. Whenever there is an opportunity for interpretation of the document, a good faith effort shall be made to obtain the typical in-service performance and characteristics and avoid finding the best possible performance under the best possible conditions. Intentional biasing of operating parameters or assembly tolerances to optimize performance for this test shall not be considered valid results in the scope of this document.
Rationale
This document puts forth a foundation for the standardization of electric traction motors, as a component of an electric traction drive system, and as the means to validate manufacturer specified maximum (net) power and maximum 30 minute power. The core procedures specify the performance of vehicle testing in a laboratory setting on a dynamometer using a regulated power supply with all instrumentation having current calibration and certification documentation. The results are summarized in a communications document (Appendix A) comparing measured maximum (net) power and maximum 30 minute power against manufacturer declared values. An acceptance criteria is applied to support a pass/fail classification.
In addition, the procedures herein define very specific conditions so that results obtained are: i) unambiguous; ii) measured under controlled laboratory conditions: iii) structured to preclude bias due to non-production testing parameters. The results of the testing are suitable inputs to in-vehicle motor rating and performance characterization and as independently validated measurements for electric traction drives regardless of application (passenger vehicle, motorcycle, low speed EV, and others).
Recommended Content
| Ground Vehicle Standard | Vehicle Power Test for Electrified Powertrains |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Table 1 | Laboratory instrumentation accuracy | |
| Unnamed Dataset 6 | ||
| Table 2 | Unit conversions | |
| Unnamed Dataset 8 | ||
| Unnamed Dataset 9 | ||
| Unnamed Dataset 10 |
Issuing Committee
The Hybrid Technical Standards Committee reports to the Powertrain Systems Group of the Motor Vehicle Council. The Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports related to the field of hybrid vehicle technology. The following topics are within the scope of this committee's work: ¿ safety aspects of hybrid systems in vehicles ¿ test procedures to establish the performance of hybrid systems and components ¿ nomenclature ¿ vehicle interface and serviceability requirements Participants in the SAE Hybrid Technical Standards Committee include OEMs, suppliers, consulting firms, government, and other interested parties.
Reference
| Number | Title |
|---|
* Redlines comparisons are available for those standards
listed in the Revision History that contain a radio button. A
redline comparison of the current version against a revision is
accomplished by selecting the radio button next to the standard and
then selecting 'compare'. At this time, Redline versions only exist
for some AMS standards. SAE will continue to add redline versioning
with ongoing updates to SAE MOBILUS.