Patent ID: 11945335
Assignee: JILIN UNIVERSITY
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A method for characterizing an energy consumption indicator of an electric vehicle (EV), comprising:
generating a test cycle, multiple test sub-cycles being assigned to different state of charge (SOC) phases of the test cycle;
performing a cyclic energy consumption test on the EV according to the generated test cycle until a termination condition for the energy consumption test of the EV is met, and acquiring a time-speed curve, a time-direct current (DC) energy consumption curve, and a total alternating current (AC) energy consumption in the test cycle during the test;
determining a DC energy consumption rate and an AC energy consumption rate of the EV in each of the test sub-cycles according to a result of the cyclic energy consumption test;
determining a driving feature in each of the test sub-cycles according to the time-speed curve in the test cycle, the driving feature including a speed intensity, a braking intensity and a slow-driving intensity;
determining a normalized driving feature in each of the test sub-cycles according to the driving feature in each of the test sub-cycles and a base driving feature, the base driving feature being a driving feature in a base cycle; and
extracting a DC energy consumption indicator and an AC energy consumption indicator of the EV according to DC energy consumption rates, AC energy consumption rates and normalized driving features of the EV in all test sub-cycles, the DC energy consumption indicator including a DC energy consumption base, a DC energy consumption speed sensitivity, a DC energy consumption braking sensitivity and a DC energy consumption slow-driving sensitivity; and the AC energy consumption indicator including an AC energy consumption base, an AC energy consumption speed sensitivity, an AC energy consumption braking sensitivity and an AC energy consumption slow-driving sensitivity.