车载三端口变换器及其控制方法
By designing an on-board three-port converter, multiple power transmission modes are achieved using transformers and switch control, solving the problems of numerous electronic components and low charging efficiency in existing technologies, and optimizing product cost and power density.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNITED AUTOMOTIVE ELECTRONICS SYST
- Filing Date
- 2022-12-30
- Publication Date
- 2026-07-17
AI Technical Summary
The existing mechanical integration of on-board chargers and on-board DC-DC converters has failed to effectively reduce the number of electronic components, limiting the improvement of product cost and power density. At the same time, low-voltage battery charging is susceptible to voltage fluctuations of high-voltage batteries, resulting in poor charging efficiency.
An on-board three-port converter design is adopted, which includes a first transformer, a second transformer, an A-port circuit, a B-port circuit, and a C-port circuit. By controlling the on/off state of the first and second switches, multiple power transmission modes can be realized. A resonant network is introduced in the A-port circuit to stabilize the bus voltage and optimize the power transmission efficiency between the three ports.
It achieves power transmission optimization in multiple modes, improves the working stability and charging efficiency of low-voltage DC-DC converters, and reduces product cost and size.
Smart Images
Figure CN116208006B_ABST