Performance Characterization of Electrified Powertrain Motor-drive Subsystem J2907_201702

DOI: https://doi.org/10.4271/J2907_201702

Issuing Committee: Hybrid - EV Committee

Publisher: SAE International

Pages: 24

Rationale: Ratings of motors intended for electric vehicle traction often do not come with sufficient information to extract meaningful technical data to enable valid performance comparisons. Test procedures are varied among manufacturers and frequently are not explicitly defined when motor characteristics are quoted, resulting in ambiguous and vague specifications that can confuse both consumers and developers. This document was developed to establish a foundation for the standardization of motor tests for electric machines used in electric traction drive systems. Its intent is to specify procedures for tests to be done in a laboratory setting to foster a consistent and repeatable mechanism for the assessment of motor net power and maximum 30 minute power. This facilitates a solid basis for comparisons of different motors as well as a mechanism to establish reliable, repeatable, sanctioned specifications. In this document the cited tests apply to electric traction drive subsystems as a generic component of vehicle propulsion for light duty passenger cars, motor cycles, and low speed electrified vehicles for which power can be quantified in a laboratory setting and validated by independent testing laboratories.