TY - CONF
T1 - Application of alternative EGR and VGT strategies to a Diesel Engine
AU - Wijetunge, R S
AU - Hawley, J G
AU - Vaughan, N D
N1 - SAE Technical Paper 2004-01-0899
PY - 2004
Y1 - 2004
N2 - This paper describes the results of an investigation into alternative control strategies for diesel engines equipped with Exhaust Gas Recirculation (EGR) and Variable Geometry Turbocharging (VGT). The objectives of the research were to improve the engine aircharge performance during transient maneuvers, thus bringing benefits for fuel economy, exhaust emissions and engine transient performance. Two of the investigated areas are detailed in this paper: The coordinated control of the EGR-VGT systems to improve transient airflow at low-speed, low-load operation; Transient VGT control using exhaust pressure feedback.
A simple and effective method for coordinating the EGR-VGT system is demonstrated to improve airflow response to tip-ins and tip-outs. The exhaust pressure feedback method is shown to overcome difficulties in the transient control of VGT systems, offering improved engine torque response and reduced transient backpressure.
AB - This paper describes the results of an investigation into alternative control strategies for diesel engines equipped with Exhaust Gas Recirculation (EGR) and Variable Geometry Turbocharging (VGT). The objectives of the research were to improve the engine aircharge performance during transient maneuvers, thus bringing benefits for fuel economy, exhaust emissions and engine transient performance. Two of the investigated areas are detailed in this paper: The coordinated control of the EGR-VGT systems to improve transient airflow at low-speed, low-load operation; Transient VGT control using exhaust pressure feedback.
A simple and effective method for coordinating the EGR-VGT system is demonstrated to improve airflow response to tip-ins and tip-outs. The exhaust pressure feedback method is shown to overcome difficulties in the transient control of VGT systems, offering improved engine torque response and reduced transient backpressure.
UR - http://www.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-84877223451&citeCnt=0&noHighlight=false&sort=plf-f&src=s&st1=university+of+bath&nlo=&nlr=&nls=&imp=t&sid=10.182.88.106%3a2868a783%3a13eceaf5409%3a-4fb72575&sot=b&sdt=b&sl=98&s=%28AFFILORG%28university+of+bath%29%29+AND+ORIG-LOAD-DATE+AFT+1368706736+AND+ORIG-LOAD-DATE+BEF+1369311248&relpos=56
UR - http://dx.doi.org/10.4271/2004-01-0899
U2 - 10.4271/2004-01-0899
DO - 10.4271/2004-01-0899
M3 - Paper
T2 - SAE 2004 World Congress and Exhibition
Y2 - 8 March 2004 through 11 March 2004
ER -