Title:
DIAGNOSTIC SYSTEM FOR VEHICLE ELECTRICAL SYSTEM HAVING DC-DC VOLTAGE CONVERTER AND VOLTAGE REGULATOR
Document Type and Number:
WIPO Patent Application WO/2019/027144
Kind Code:
A1
Abstract:
A diagnostic system for a vehicle electrical system having a DC-DC voltage converter and a voltage regulator is provided. A first monitoring application sets a first voltage regulator state flag to be the same as a first fault value when a first voltage value is greater than a first maximum voltage value. A first diagnostic handler application switches a high-voltage switch and a low-voltage switch to an open operation state when the first voltage regulator state flag is the same as the first fault value. A second monitoring application sets a second voltage regulator state flag to be the same as a second fault value when a second voltage value is less than a first minimum voltage value. A second diagnostic handler application switches the high-voltage switch and the low-voltage switch to the open operation state when the second voltage regulator state flag is the same as the second fault value.
More Like This:
Inventors:
KATRAK KERFEGAR K (US)
Application Number:
PCT/KR2018/007362
Publication Date:
February 07, 2019
Filing Date:
June 28, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H02H7/12
Foreign References:
| KR20170078437A | 2017-07-07 | |||
| US20140160804A1 | 2014-06-12 | |||
| US20070133236A1 | 2007-06-14 | |||
| KR101625864B1 | 2016-06-13 | |||
| KR101096613B1 | 2011-12-21 |
Other References:
See also references of EP 3509178A4
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (KR)
Download PDF: