期刊
IEEE ACCESS
卷 9, 期 -, 页码 56201-56213出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2021.3072054
关键词
DC-DC power converters; Hybrid electric vehicles; Torque converters; Gears; Torque; Batteries; Power generation; Belt-driven starter and generator; field-current control; mechanical torque converter; micro hybrid electric vehicles; wound field synchronous machine
资金
- Technology Innovation Program [20002777]
- Ministry of Trade, Industry & Energy (MOTIE, Korea)
This paper introduces a 12V mechanical torque converting belt-driven integrated starter and generator (BSG) system without a DC-DC converter. The system utilizes a mechanical torque converter to meet the requirements of micro hybrid electric vehicles, providing high starting torque and operating speed.
This paper presents a 12 V mechanical torque converting belt-driven integrated starter and generator (BSG) system without a DC-DC converter. A micro hybrid electric vehicle (micro HEV) typically uses a 12 V battery with a 12/48 V bidirectional DC-DC converter to satisfy its high starting torque and wide operating speed for generating the required power. In contrast, the proposed BSG consists of a wound field synchronous machine (WFSM), planetary gears, and a belt-type pulley, which does not require an additional bidirectional DC-DC converter. Owing to the mechanical torque converter, the proposed BSG system produces a high starting torque in starter-mode with a 12:1 gear ratio, and it operates in generator-mode with a 1:2 gear ratio to satisfy the required target specifications. To verify that the proposed BSG system meets the required target design specifications, simulations using MATLAB/Simulink 2018b and ANSYS electromagnetic 19.0 were performed. Additionally, the experimental results verify that this proposed BSG meets the required starter and generator modes specifications. Based on an analysis of the cost and vehicle environment conditions, the proposed BSG provides an efficient solution to the high cost issue incurred by a micro-HEV that requires a DC-DC converter system.
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