SAE 2014 On-Board Diagnostics Symposium - Europe Technical Session Schedule

Transcription

1 SAE 2014 On-Board Diagnostics Symposium - Europe Technical Session Schedule As of 03/09/ :40 pm Monday, March On-Board Diagnostics Symposium - Europe - Day 1 Session Code: OBDE100 ALL DAY Time Paper No. Title 10:00 a.m. 10:45 a.m. 11:30 a.m. 12:00 p.m. Update and Technical Challenges for European OBD Requirements An overview of the European OBD legislation is made and the challenges imposed by the more stringent OBD requirements are identified. The available monitoring hardware options are reviewed and information is given on the different principles of operation chosen by developers. A major challenge in the Euro 6 light duty and Euro VI heavy duty vehicle OBD requirements is the detection of partial DPF failures against the upcoming particulate OBD threshold limits. The talk focuses on an extensive multi laboratory, multi sensor EU study that targeted the assessment of the technical feasibility of the proposed particulate OBD thresholds and the evaluation of the soot sensors available in the market at mature development state. In this project a test procedure was developed including test protocols and cycles, measurement equipment and artificial introduction of DPF failures. A generic OBD algorithm was also developed and calibrated for each sensor separately. The errors of omission and commission were determined for each sensor, test engine and vehicle and used as sensor evaluation score. Finally, some discussion is added from the European perspective on the US OBD requirements, certification procedures, test methods and technologies introduced by OEMs on latest vehicle models with focus on PM and NO, OTLs for Diesel passenger cars. Zissis C. Samaras, Aristotle University of Thessaloniki CARB Update on Light-Duty Mike Regenfuss, California Air Resources Board Worldwide OBD Update OBD system requirements were first developed by the California Air Resources Board, the U.S. Environmental Protection Agency, and the European Commission. New OBD requirements should be as consistent as possible with existing requirements to maximize reliability and to minimize system complexity, proliferation of configurations, and consumer cost. New OBD requirements from around the world are briefly reviewed and most are consistent with the original U.S. and European requirements. Worldwide OBD requirements are being further harmonized under the United Nations, Economic Commission for Europe, World Forum for Harmonization of Vehicle Regulations (WP29). David H. Ferris, General Motors Co. Networking Lunch with Exhibits 1:00 p.m. 1:30 p.m. 2:00 p.m. GM Experiences John Van Gilder, General Motors Co. Chrysler Experiences Hal Zatorski, Chrysler Group LLC Toyota Experiences Morton M. Smith, Toyota

2 2:30 p.m. 3:00 p.m. 3:30 p.m. 4:00 p.m. 4:30 p.m. 14OBDE-0031 Ford Experiences Paul A. Baltusis, Ford Motor Co. VW Experiences Robert Gruszczynski, Volkswagen of America GPS and Navigation Inputs into the Control System: EU Implementing Decision The EU has provided a decision which allows for usage of GPS/map data in the hybrid control system for battery state of charge control. However, the decision does not provide direction on how to handle for periods when the GPS data may be too inaccurate for consumption by the control system, nor does it provide for how much diagnostic coverage is required. This presentation provides a common implementation standard to have consistent operation of these new systems, and hopefully align with any future OBD regulations which include GPS as a required input for diagnosis. Andrew Zettel, General Motors Co. Q&A Panel Bernard Challen, Shoreham Services 2014 On-Board Diagnostics Symposium - Europe - Day 2 Session Code: OBDE200 ALL DAY Time Paper No. Title 9:00 a.m. 10:00 a.m. 10:30 a.m. SAE Communications Standards Paul A. Baltusis, Ford Motor Co.; Robert Gruszczynski, Volkswagen of America Jaguar Land Rover Experiences The presentation covers some of Jaguar Land Rover s lessons learnt from certifying to ARB s OBD II regulation over nearly 20 years. Three topics will be discussed, communication with ARB staff, our introduction of a novel catalyst light-off strategy, which required the ABS control module to become OBD compliant and how JLR collects IUMPR data from small populations of vehicles. Martin Haggett, Jaguar Land Rover

3 Breakout Sessions The Organizers of the Symposium will facilitate four breakout sessions on the following topics: 1. Communication Standards, moderated by Paul Baltusis 2. Diesel Aftertreatment, moderated by Hal Zatorski 3. Hybrid / OBD, moderated by Andrew Zettel 4. Diesel Misfire Monitoring, moderated by John Van Gilder 1:00 p.m. Networking Lunch with Exhibits 2:00 p.m. 3:00 p.m. 3:30 p.m. Break Out Session Q&A Bernard Challen, Shoreham Services BAE Systems Hybrid Derek Matthews, BAE Systems Kinetic Model Based SCR Management to Minimize Base Control Complexity and Maximize OBD Opportunity For decades, urea based Selective Catalytic Reaction (SCR) has been a prominent aftertreatment methodology for NOx reduction. Although SCR application was predominant in industrial and research areas, the dominant leap in urea distribution and availability paved the way for SCR systems to be used for on-highway applications. Today, the majority of NOx aftertreatment uses SCR. Engineering advancements in urea delivery, hydrolysis, mixing, NH3 distribution, deposits and NH3 slip control, make it a viable solution for future automotive applications. However, recent OBD implementations on SCR systems have unveiled fundamental challenges. One such fundamental challenge is that the SCR system performance management has no direct feedback to measure and control. The lack of feedback requires interesting and complex control logic to determine that urea being dosed meets known NH3 demand and NH3 storage on the SCR catalyst drives the NOx conversion efficiency; efficiency is measured by means of NOx decrease. However, consideration must be given due to the NOx sensor sensitivity to NH3 when used for feedback. In this context, SCR performance monitoring is certainly a challenging task. An over-engineered smart diagnostic strategy alone cannot resolve this interference; also supportive intelligent SCR system control is most important to avoid poor in-use diagnostics. Such a synergistic method will be discussed in the presentation where an SCR kinetic model is used within the ECU control logic for SCR management, where the effects of urea dosing can be made and corrected prior to actual dosing. Besides conservative and cautious dosing management, the strategy offers extended information on the current state of SCR which will be harnessed for aggressive efficiency management while minimizing the number of sensors required. This strategy while offering robust support for performance control, greatly benefits OBD through supplying virtual sensing of NH3 storage, NH3 slip rate and intelligent intrusive test possibilities, which can be used for smart and robust diagnostics of SCR system performance. The presentation also discusses how kinetic model based OBD will minimize the number of calibration labels, and thus reduce the overall calibration effort, while proving the concept can be easily adaptable for applications from passenger car to heavy-duty with minimum changes. Duncan Engeham, FEV GmbH

4 4:00 p.m. Evaluation Techniques of NOx for OBD II Compliance on Fuel Injection System Monitoring in a Common Rail Vehicle Diesel Engine As commercial vehicles are constantly getting cleaner, their contribution to air pollution is in large part defined by the in-use emissions degradation. In this respect, malfunctions in emissions-related components may play an important role to the contribution of commercial vehicles in air pollution. This paper will evaluate the effect of NOx at different diagnostic fault conditions experimentally tested on a common rail automotive 6 cylinder diesel engine in order to evaluate their capabilities to fulfill the Indian OBD II requirements concerning the monitoring of CRS FIE systems. First, an investigation of sensitivity of NOx emissions to fuel injection quantity, timing, boost, coolant temp, injector and rail pressure variations were carried out at different engine operating points as per steady state cycles to evaluate the OBD thresholds conditions. Afterwards, the different diagnostic algorithms under investigation based on the above were tested under OBD operating conditions in order to detect their fault detection capabilities. 4:30 p.m. Leelakumar Murugesan, Ashokleyland 5:00 p.m. 5:30 p.m. Granularity of Monitors/PinPointing: How Many Failure Modes Shall an OBD Monitor Be Able To Distinguish? How many failure modes shall an OBD monitor be able to distinguish? OBD has been a key challenge in the engine control system business for many years. Within these years the OEMs, suppliers, authorities have achieved a shared understanding of the needs as well as the technical feasibilities. Reading the legislation text without this grown experience is not always so easy. Carsten Bruns, Continental Automotive GmbH NEW CHALLENGE: Motorcycles must be safer and cleaner! What would happen if motorcycles had similar emissions and OBD legal requirements to passenger cars? The aim of the presentation is to give an overview of the current and future European On Boad Diagnostic and emission legislation requirements for twoand three wheeled vehicles, based on the new Regulations which are implemented by the European Union with the beginning of The speech also covers experiences Bosch Engineering GmbH made in this sector and an estimation of upcoming changes in that field. Klaus Fronius, Bosch Engineering GmbH Diesel Misfire Monitoring Breakout Session Session Code: OBDE204 John Van Gilder, General Motors Co.

5 Diesel Aftertreatment Breakout Session Session Code: OBDE202 Room Salon Bonn Hal Zatorski, Chrysler Group LLC Communication Standards Breakout Session Session Code: OBDE201 Room Salon Hamburg Paul A. Baltusis, Ford Motor Co. Hybrid / OBD Breakout Session Session Code: OBDE203 Room Salon Koln Andrew Zettel, General Motors Co. Wednesday, March On-Board Diagnostics Symposium - Europe - Day 3 Session Code: OBDE300 9:00 a.m. Time Paper No. Title 9:00 a.m. Bosch perspective on Gasoline, Diesel and Hybrid OBDII Development While Gasoline and Diesel OBD systems have been developed and established for many years, current challenges mostly are related to strategies for optimizing fuel economy or eliminating emissions such as stop-start, boost recuperation and strong HEV systems. CARB has already started to modify OBD II requirements for such systems, which will be continued including some kind of CO2 related requirements. Accordingly, this presentation is intended to give some insight in corresponding OBD development, also considering the growing interaction of combustion and electrical subsystems. Bosch will present OBD approaches for systems e.g. with minimized combustion engine idle, without deceleration fuel cut-off or with modified combustion engine operating points, suitable for both EU and US market. Further on, OBD aspects for HEV systems including traction battery systems are illustrated. Peter Klee, Robert Bosch GmbH

6 9:30 a.m. 10:00 a.m. 10:30 a.m. CARB HD Update Mike Regenfuss, California Air Resources Board Developing HDOBD Products for Worldwide Markets The presentation focuses on Worldwide HDOBD Product Development and specifically on the differences between US EPA/ARB and Euro 5/Euro 6 OBD. Differences between monitor requirements will be discussed in detail. The presentation will also focus on the differences in scan tool requirements, demonstration testing, certification, and post production reporting. Development costs and effort to support different standards will also be reviewed. Finally, the organization to support Worldwide OBD product development is also discussed. Jeffrey Potts, Cummins Inc. 11:00 a.m. 12:30 p.m. Diesel OBD Panel Discussion Jeffrey Potts, Cummins Inc. Panelists - Zissis C. Samaras, Aristotle University of Thessaloniki; John Van Gilder, General Motors Co.; ACEA Heavy Duty Soot Sensor Technology Survey And Performance META Study Andrew David Noble, Ricardo UK, Ltd.