Apparatus and method for controlling fuel supply of bi-fuel vehicle

A fuel supply, dual-fuel technology, applied in electrical control, engine control, charging system, etc., can solve problems such as fuel efficiency decline, and achieve the effect of preventing fuel efficiency decline

Inactive Publication Date: 2015-02-25
HYUNDAI MOTOR CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Therefore, due to the limitation of vehicle speed in failsafe mode, and the concomitant increase in RPM of the engine, the driver can be adversely affected and fuel efficiency may decrease

Method used

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  • Apparatus and method for controlling fuel supply of bi-fuel vehicle
  • Apparatus and method for controlling fuel supply of bi-fuel vehicle

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Embodiment Construction

[0021] Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be understood that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

[0022] Accordingly, the drawings and specification are to be regarded as illustrative in nature and not restrictive. Like reference numerals refer to like elements throughout the specification.

[0023] Throughout the specification and the following claims, when it is described that an element is "coupled" to another element, the element may be "d...

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Abstract

An apparatus and a method for controlling fuel supply of a bi-fuel vehicle includes: a gasoline fuel unit injecting gasoline fuel to a combustion chamber of an engine; an LPG fuel unit injecting LPG fuel to the combustion chamber of the engine; and an engine controlling unit selectively using the gasoline fuel and the LPG fuel according to an operation mode of a vehicle, and the engine controlling unit enters a limp home mode according to a state of the LPG fuel unit and uses fuel different from fuel used in a driving mode as driving fuel in the limp home mode.

Description

[0001] Related Application Cross Reference [0002] This application claims priority from Korean Patent Application No. 10-2013-0097432 filed on Aug. 16, 2013, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to an apparatus and method for controlling the fuel supply of a dual fuel vehicle. Background technique [0004] In recent years, dual-fuel vehicles using both gasoline and gas have been developed. Gases include compressed natural gas (CNG), liquefied petroleum gas (LPG), and more. [0005] Dual-fuel vehicles include gasoline fuel systems and LPG fuel systems. Dual-fuel vehicles selectively switch between gasoline fuel and LPG fuel by controlling the gasoline fuel system and the LPG fuel system through an engine control unit (ECU). [0006] In general, a dual-fuel vehicle uses gasoline fuel to drive an engine while starting and driving by switching the gasoline engine to LPG fue...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D19/06
CPCF02M13/06F02D19/025F02D19/0647F02D41/0025F02D41/0027F02D41/22F02D2041/227F02D2041/228Y02T10/30
Inventor 金德烈
Owner HYUNDAI MOTOR CO LTD
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