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System and method for controlling valve timing of continuous variable valve duration engine

A valve timing and engine technology, applied in the direction of engine starting, engine components, engine control, etc., can solve the problems of advancing or delaying valve opening and closing timing, etc., to reduce fuel volume, improve power performance, and reduce emissions. Effect

Active Publication Date: 2017-07-21
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in the state where the duration of the valve is fixed, the CVVT device advances or retards the opening and closing timing of the valve

Method used

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  • System and method for controlling valve timing of continuous variable valve duration engine
  • System and method for controlling valve timing of continuous variable valve duration engine
  • System and method for controlling valve timing of continuous variable valve duration engine

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Embodiment Construction

[0034] The following description is merely exemplary in nature and is not intended to limit the invention, application or use. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0035] As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

[0036] Throughout the specification and the following claims, unless expressly stated to the contrary, the word "comprise" will be understood to imply the inclusion of stated elements, but not the exclusion of any other elements.

[0037] It should be understood that the terms "vehicle" or "vehicular" or other similar terms as used herein include motor vehicles, which generally include hybrid vehicles, plug-in hybrid electric vehicles, and other alternative fuel vehicles (such as those derived from non-petroleum fuels). As...

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Abstract

The present disclosure provides a system and a method for controlling valve timing of a continuous variable valve duration engine. The method may include: classifying a plurality of control regions depending on an engine speed and an engine load; retarding an intake valve closing (IVC) timing and limiting a valve overlap between an intake valve and an exhaust valve in a first control region; advancing the IVC timing and applying a maximum duration to the exhaust valve in a second control region; advancing the IVC timing according to an increase of the engine load in a third control region; controlling a throttle valve to be fully opened and advancing the IVC timing in a fourth control region; and controlling the throttle valve to be fully opened and retarding the IVC timing in a fifth control region.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2015-0176332 filed on December 10, 2015, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present invention relates to a system and method for controlling the valve timing of a CVVD (Continuously Variable Valve Opening Duration) engine. Background technique [0004] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0005] The internal combustion engine burns a mixture of fuel and air in a predetermined ratio using a set ignition pattern, thereby generating power by using explosion pressure. [0006] Typically, the camshaft is driven by a timing belt connected to the crankshaft (which converts the linear motion of the piston caused by the explosion pressure into rotary motion) to actu...

Claims

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Application Information

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IPC IPC(8): F01L1/344F01L13/00
CPCF01L1/344F01L13/0015F01L2013/0089F01L1/053F01L2001/0537F01L2250/02F01L2800/00F02D41/009F02D2041/002F02N19/004F01L1/34F02D13/0215F02D41/0002F02D2041/001F02D2200/101Y02T10/12Y02T10/40F02D41/26
Inventor 柳印相河京杓孙维祥权奇荣
Owner HYUNDAI MOTOR CO LTD
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