发明名称 |
Techniques for synchronous rectification control of DC-DC converters in electrified vehicles |
摘要 |
Techniques are presented for synchronous rectification control (SRC) of a DC-DC converter in an electrified vehicle (EV) can include determining a required output current for the DC-DC converter based on a secondary voltage of a secondary battery system of the EV, the DC-DC converter being configured to convert a primary voltage from a primary battery system of the EV to the secondary voltage. The techniques can include determining, at the controller, a switching frequency for the DC-DC converter that causes the DC-DC converter to output the required output current. The techniques can include determining turn-on and turn-off delays of the DC-DC converter based on the required output current and the switching frequency using one or more look-up tables. The techniques can also include controlling the DC-DC converter efficiency based on the turn-on and turn-off delays. |
申请公布号 |
US9315166(B2) |
申请公布日期 |
2016.04.19 |
申请号 |
US201414323563 |
申请日期 |
2014.07.03 |
申请人 |
FCA US LLC;Kettering University |
发明人 |
Nie Zhong;Zhang Mengyang;Krozek Dennis;Householder Fred A;Bai Hua;Guo Wei;Duan Chen |
分类号 |
B60L9/00;B60R16/03;B60L11/18;H02M3/335;B60L1/00;B60L11/08;H02J7/00;H02J1/00;H02M3/337;H02M1/00 |
主分类号 |
B60L9/00 |
代理机构 |
|
代理人 |
Smith Ralph E |
主权项 |
1. A method, comprising:
determining, at a controller of an electrified vehicle (EV), the controller including one or more processors, a required output current for a DC-DC converter based on a secondary voltage of a secondary battery system of the EV, the DC-DC converter being configured to convert a primary voltage from a primary battery system of the EV to the secondary voltage; determining, at the controller, a switching frequency for the DC-DC converter that causes the DC-DC converter to output the required output current; determining, at the controller, turn-on and turn-off delays of the DC-DC converter based on the required output current and the switching frequency using one or more look-up tables; and controlling, by the controller, the DC-DC converter based on the turn-on and turn-off delays. |
地址 |
Auburn Hills MI US |