Invention Grant
- Patent Title: Apparatus and method for controlling exhaust gas recirculation
- Patent Title (中): 用于控制废气再循环的装置和方法
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Application No.: US13718160Application Date: 2012-12-18
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Publication No.: US09074560B2Publication Date: 2015-07-07
- Inventor: Seungbum Kim , Jeong Nam Park
- Applicant: Hyundai Motor Company , Kia Motors Corporation
- Applicant Address: KR Seoul KR Seoul
- Assignee: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- Current Assignee: HYUNDAI MOTOR COMPANY,KIA MOTORS CORPORATION
- Current Assignee Address: KR Seoul KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2012-0031163 20120327
- Main IPC: F02B47/08
- IPC: F02B47/08 ; F02M25/07 ; F02D21/08 ; F02D41/00

Abstract:
An exhaust gas recirculation control apparatus includes: an EGR valve adjusting a flow rate of EGR gas recirculated from an exhaust manifold to an intake manifold; a manifold absolute pressure (MAP) sensor measuring pressure inside the intake manifold; a throttle valve controlling the amount of inflow air; an igniter spraying fuel; an acceleration pedal angular position sensor; a crank position sensor measuring engine RPM; a vehicle speed sensor measuring a speed of a vehicle; and a control portion receiving a pressure signal from the MAP sensor, calculating a ratio of the EGR gas for a total volume of the intake manifold by using pressure variance inside the intake manifold, calculating pressure of the EGR gas by multiplying the pressure of the intake manifold and the ratio of the EGR gas, and converting the pressure of the EGR gas to a flow rate of the EGR gas.
Public/Granted literature
- US20130255650A1 APPARATUS AND METHOD FOR CONTROLLING EXHAUST GAS RECIRCULATION Public/Granted day:2013-10-03
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