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Injection system for cold start improvement of flexible-fuel vehicle and method of controlling the same

A flexible fuel and fuel injection system technology, applied in fuel injection control, charging system, engine control, etc., can solve the problems of inconvenient supply of gasoline and increase in cost, and achieve the effect of improving cold start characteristics and reducing costs.

Inactive Publication Date: 2014-07-02
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In the fuel supply system of the conventional FFV, since the auxiliary fuel tank 504 is usually installed in the engine space, the fuel in the auxiliary fuel tank 504 has a high possibility of causing a fire in case the FFV vehicle is involved in a collision or an accident
In addition, it is not convenient to supply gasoline separately, and therein lies the problem of cost increase

Method used

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  • Injection system for cold start improvement of flexible-fuel vehicle and method of controlling the same
  • Injection system for cold start improvement of flexible-fuel vehicle and method of controlling the same
  • Injection system for cold start improvement of flexible-fuel vehicle and method of controlling the same

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Embodiment Construction

[0021] Reference will now be made in detail to various embodiments of the present 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 appreciated 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 alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0022] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] refer to figure 2 with image 3 , the fuel injection system for improving the cold start of a flexible fuel vehicle (FFV) according to ...

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Abstract

An injection system for cold start improvement of a flexible-fuel vehicle (FFV), may include a first injector installed in an intake port, and a second injector installed in the intake port in which the first injector may be installed and having a built-in heater, wherein the first injector and the second injector may be positioned upstream of intake valves.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Application No. 10-2012-0154477 filed on Dec. 27, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention generally relates to a fuel injection system for a cold start of a flexible fuel vehicle (FFV) and a control method thereof, and more particularly, to a technique capable of improving cold start characteristics of an FFV using ethanol as a main fuel. Background technique [0004] Typically, a flexible fuel vehicle (FFV) designed to primarily use ethanol does not ensure smooth start characteristics when only ethanol is used as the primary fuel in cold weather. In this way, these FFVs are equipped with a separate auxiliary fuel tank for saving a small amount of gasoline, and the gasoline saved in the tank is injected downstream of the throttle valve in the event of a cold start, thereby...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M53/06F02D41/30
CPCF02M69/043F02M61/145F02M53/06F02M61/14F02M43/00F02D19/06Y02T10/30
Inventor 李炯周慎敏揆
Owner HYUNDAI MOTOR CO LTD
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