Title:
IGNITION DEVICE OF ISG-EQUIPPED VEHICLE USING LPG AS FUEL
Document Type and Number:
WIPO Patent Application WO/2014/126409
Kind Code:
A1
Abstract:
Disclosed is an ignition device of an ISG-equipped vehicle using LPG as fuel. The present invention has an auxiliary fuel supply switch for sensing the switching state of a fuel supply switch and driving multiple fuel shut-off valves, the auxiliary fuel supply switch being separately installed to be switched on/off in conjunction with the fuel supply switch. Accordingly, since it is possible to determine the switching state of the fuel supply switch by means of a second output voltage of the auxiliary fuel supply switch, the present invention is capable of ISG control. Furthermore, since the fuel shut-off valves are driven in accordance with a second voltage of a relay outputted by the auxiliary fuel supply switch and the fuel pressure of a fuel line is maintained in an idle stop state, the present invention is capable of improving startability at the time of restarting an engine. In addition, in case of emergency, since the fuel supply switch and the auxiliary fuel supply switch are switched off simultaneously, the fuel shut-off valves are rapidly controlled to be in a closed state and the operation of a motor for driving a fuel pump is stopped. Therefore, the present invention can rapidly shut off fuel supply in case of emergency and prevent a secondary accident in advance.
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Inventors:
KIM MIN SEONG (KR)
Application Number:
PCT/KR2014/001216
Publication Date:
August 21, 2014
Filing Date:
February 14, 2014
Export Citation:
Assignee:
CONTINENTAL AUTOMOTIVE SYSTEMS (KR)
International Classes:
F02D29/02; F02D41/06; F02D41/08; F02N11/08
Foreign References:
| JP2009068426A | 2009-04-02 | |||
| KR20050093956A | 2005-09-26 | |||
| JP2007261289A | 2007-10-11 | |||
| JP2006029142A | 2006-02-02 | |||
| KR20110057472A | 2011-06-01 |
Other References:
See also references of EP 2918812A4
None
None
Attorney, Agent or Firm:
NAM & NAM WORLD PATENT & LAW FIRM (KR)
특허법인 남앤드남 (KR)
특허법인 남앤드남 (KR)
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