Method for testing and evaluating power acceleration of electric drive assembly of new energy automobile

Abstract

The invention discloses a new energy automobile electric drive assembly power acceleration test evaluation method, and relates to the technical field of new energy automobile testing, and the method comprises the steps: collecting the full-load holding data and light-load holding data of an electric drive assembly, carrying out the same-speed position alignment, power current increment calculation and segmented arrangement, and carrying out the calculation of the power acceleration of the electric drive assembly; obtaining a same-speed double-reference sequence, an initial speed segment endpoint and a segment time window length; dividing initial speed sections according to the endpoints of the initial speed sections, carrying out a same-speed micro-dipulse test at the initial output rotating speed position of each initial speed section according to the length of a segmented time window, and carrying out redemption coefficient calculation through a same-speed double-reference sequence to form a micro-detection redemption coefficient, a main acceleration redemption coefficient and a micro-detection redemption median value; the method comprises the following steps: performing local arrangement on a main acceleration redemption coefficient through the length of a segmented time window, identifying a power flow dislocation break point by combining a micro-detection redemption median value, and dividing a release section according to the power flow dislocation break point to form an advanced establishment time difference, a collaborative establishment area and a limited mismatch area.

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