Title:
INTELLIGENT ELECTRIC ACTUATOR FOR CONTROL OF A TURBOCHARGER WITH AN INTEGRATED EXHAUST GAS RECIRCULATION VALVE
Document Type and Number:
WIPO Patent Application WO2001066925
Kind Code:
A8
Abstract:
An exhaust gas recirculation (EGR) system for an engine with a variable geometry turbocharge (18) incorporates a master rotary electric actuator (REA) (50) with a microprocessor controller (53) receiving condition signals (46, 48a-e) from sensors (48) associated with the turbocharger and the engine control unit (ECU) (54) and positioning the turbine inlet nozzle (44) geometry of the turbocharger in response to a predetermined matrix of the condition signals. A slave REA (52) is connected through an internal processing unit (58) to the controller to position an EGR valve (34). The processing unit provides an actual position signal to the controller which responds with a desired position signal based on the predetermined condition signal matrix. The processing unit engages the slave REA to position the EGR valve.
Inventors:
WASZKIEWICZ WAYNE
GREENTREE CHRISTOPHER C
GREENTREE CHRISTOPHER C
Application Number:
PCT/US2001/006937
Publication Date:
February 13, 2003
Filing Date:
March 02, 2001
Export Citation:
Assignee:
HONEYWELL INT INC (US)
International Classes:
F02B37/00; F02B37/24; F02D21/08; F02D23/00; F02D41/00; F02D43/00; F02D45/00; F02M25/07; (IPC1-7): F02D21/08; F02M25/07
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