发明名称 |
METHOD OF COMPENSATING CURRENT OF PWM CONVERTER FOR ENVIRONMENTALLY-FRIENDLY VEHICLE |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide an offset compensation value for a current variation amount by an offset value in a delay time of a real current and detected current of a pulsatory current that is output as a chopping wave form from an inductor included in a DC-DC converter for an environmentally-friendly vehicle. <P>SOLUTION: A method includes: determining whether a PWM signal for a switching DC-DC converter is on; comparing a delay time with a rise half cycle size or a descent half cycle size between a detected current and a real current that is output from an inductor; calculating a current variation amount and determining an offset correction value for correcting a current variation amount according to the result of comparing the rise half cycle size or the descent half cycle size with the delay time; and applying the offset correction value to compensate the detected current of the inductor. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013121312(A) |
申请公布日期 |
2013.06.17 |
申请号 |
JP20120138031 |
申请日期 |
2012.06.19 |
申请人 |
HYUNDAI MOTOR CO LTD |
发明人 |
KIM SUNG-KYOO;CHOI WON KYOUNG;KWAK WU XIN;BAE XIU HYON |
分类号 |
H02M3/155;B60L11/18;H01M8/00;H01M8/04 |
主分类号 |
H02M3/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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