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2015-06-08 ...
  • June 8-9, 2015 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
The advent of digital computers and the availability of ever cheaper and faster micro processors have brought a tremendous amount of control system applications to the automotive industry in the last two decades. From engine and transmission systems, to virtually all chassis subsystems (brakes, suspensions, and steering), some level of computer control is present. Control systems theory is also being applied to comfort systems such as climate control and safety systems such as cruise control or collision mitigation systems.
2015-04-21
Event
Power electronics and electric motors are essential for improving vehicle efficiency through drivetrain electrification. Technologies that support high efficiency, high power density, and low cost motors and power modules are required for the success of vehicle electrification.
2014-12-11
Event
With the integration of many subsystems, modeling, simulation and systems engineering take on a more important role in the design/development of new vehicle technology
2014-12-11
Event
Power electronics, especially advanced technologies such as GaN, GAAs, and SiC, offer great advantages in increasing the overall system efficiency of xEV systems. This session will explore various technologies and the benefits/challenges facing them.
2014-11-18
WIP Standard
J1779
The marine environment differs greatly from other environments in which hydraulics are used. This Recommended Practice provides hydraulic design considerations and criteria for the marine environment and is applicable to commercial vessels, military ships, and submersible vehicles. This document may be used for manned and un-manned vehicles.
2014-11-11
Technical Paper
2014-32-0071
Christian Schweikert, David Witt, Dirk Schweitzer, Marco Nicolo, Liu Chen
Abstract The market potential for products such as scooters and small motorcycles is already self-sustaining. However, other applications for small engines can be more fragmented with a wide variety of requirements for the engine control unit. Consequently, the engine control unit can be designed to accommodate more features than are necessary for a given application to cover a broader market. The flip side of this approach is to design the engine control unit for a limited application reducing the market size. Neither approach creates a cost efficient product for the producer. It either supplies the market with an electronic control unit that has features not being utilized (wasted costs) or a unit that has limited capabilities reducing the economies of scale (higher costs). When these designs are developed using discrete components these inefficiencies are exacerbated.
2014-11-10
WIP Standard
AS28937A
No scope available.
2014-11-10
WIP Standard
AS28938A
No scope available.
2014-11-10
WIP Standard
J1939/71
The SAE J1939 communications network is developed for use in heavy-duty environments and suitable for horizontally integrated vehicle industries. The SAE J1939 communications network is applicable for light-duty, medium-duty, and heavy- duty vehicles used on-road or off-road, and for appropriate stationary applications which use vehicle derived components (e.g. generator sets). Vehicles of interest include, but are not limited to, on-highway and off-highway trucks and their trailers, construction equipment, and agricultural equipment and implements.   SAE J1939-71 Vehicle Application Layer is the SAE J1939 reference document for the conventions and notations that specify parameter placement in PGN data fields, the conventions for ASCII parameters, and conventions for PGN transmission rates.
2014-11-03
WIP Standard
AS53731A
This specification covers fuse holders for use in aircraft electric circuits in conjunction with MIL-F-5372 current limiter type fuses. These fuse holders are suitable for operation at -54 to 125C.
2014-10-23
WIP Standard
ARP1199C
This Aerospace Recommended Practice provides technical and application information needed by the designers of aircraft electric systems and support equipment for the selection of overcurrent protective devices. It provides definitions to permit comparisons of various electric circuit protective devices. Included also are recommended procedures for periodic inspection.
2014-10-13
Technical Paper
2014-01-2613
Mario Farrugia, Andrew Briffa, Michael Farrugia
Abstract A conversion to LPG of a SI engine that was originally carbureted gasoline is reported in this work. The conversion was implemented on a 1988 Skoda 120L with a 1174cc rear engine. The conversion to run on Liquefied Petroleum Gas (LPG) was carried out using a programmable Engine Control Unit (ECU) that operated a single point fuel injection system. The LPG used was a commercially available mixture of butane and propane. The fuel injection system was designed to operate with the LPG in the liquid state. A circulating pump was used to maintain availability of LPG in liquid state at the inlet to the fuel injector. This made possible the use of similar fuel injection parts as in a gasoline system. Injection of the fuel in the liquid state provided cooling to the intake air as measured during driving of the vehicle and also on chassis dynamometer runs.
2014-10-13
Technical Paper
2014-01-2707
Brian C. Kaul, Benjamin J. Lawler, Charles E.A. Finney, Michelle L. Edwards, Robert M. Wagner
Abstract Advances in engine controls and sensor technology are making advanced, direct, high-speed control of engine combustion more feasible. Control of combustion rate and phasing in low-temperature combustion regimes and active control of cyclic variability in dilute SI combustion are being pursued in laboratory environments with high-quality data acquisition systems, using metrics calculated from in-cylinder pressure. In order to implement these advanced combustion controls in production, lower-quality data will need to be tolerated even if indicated pressure sensors become available. This paper examines the effects of several data quality issues, including phase shifting (incorrect TDC location), reduced data resolution, pressure pegging errors, and random noise on calculated combustion metrics that are used for control feedback.
2014-10-13
Technical Paper
2014-01-2590
Yuanzhe Zhong, Sahil Sane
Abstract Electronic controls in internal combustion engines require an in-cylinder combustion sensor to produce a feedback signal to the ECU (Engine Control Unit). Recent research indicated that the ion current sensor has many advantages over the pressure transducer, related mainly to lower cost. Modified glow plugs in diesel engines, and fuel injectors in both gasoline and diesel engines can be utilized as ion current sensors without the addition any part or drilling holes in the cylinder head needed for the pressure transducer. Multi sensing fuel injector (MSFI) system is a new technique which instruments the fuel injector with an electric circuit to perform multiple sensing tasks including functioning as an ion sensor in addition to its primary task of delivering the fuel into the cylinder. It is necessary to fundamentally understand MSFI system.
2014-10-13
Technical Paper
2014-01-2584
Krisada Wannatong, Sompach Kongviwattanakul, Thananchai Tepimonrat, Thanadech Priroon
Abstract End of line test (EOL) of Engine Control Units (ECU) is the process of ECU functions validation before releasing ECUs to the car assembly process. Examples of ECU function that need to be validated are idle control, air path control and faults manager function. To perform EOL, a vehicle and a chassis dynamometer are used to enable control functions validation inside the ECU. However, this poses high operating cost and long setup time. This paper presents the development of Hardware-in-the-Loop (HiL) system, which imitates real vehicle behavior on a chassis dynamometer. The diesel high pressure pump model was developed using an empirical dynamic modeling approach. The engine model was developed using AVL BOOST RT software, an engine cycle simulation modeling approach. The vehicle model was developed using AVL CRUISE software. In order to interface the engine and vehicle models with the ECU, HiL system was implemented.
2014-10-13
Technical Paper
2014-01-2894
Boru Jia, Zhengxing Zuo, Huihua Feng, Guohong Tian, A. P. Roskilly
Abstract The free-piston engine generator (FPEG) is a novel type of energy conversion device; it integrates a two stroke combustion engine and a linear electric machine into a single unit. As an alternative to conventional engines, the FPEG is a promising power generation system due to its simplicity and high thermal efficiency and has attracted considerable research interests recently. This paper presents the development for a spark-ignited free-piston engine generator prototype, and the design of major sub-systems is introduced. The electrical linear machine is operated as a motor to start the engine and switched to a generator after successful ignition. Ignition is one of the most crucial problems for the generating process, thus a unique control sub-system to generate ignition signals at the correct ignition timing based on the piston position was completed. Then experiments of the starting process were carried out with the prototype.
2014-10-09
Event
Early exhaust valve opening (EEVO) is a strategy to increase turbine out temperatures (TOT) for exhaust aftertreatment thermal management; however, it also results in an increase in the required fueling to maintain a particular brake torque. This study outlines experimental results of the impact of EEVO on exhaust temperature (measured at the turbine outlet) and required fueling. Several EEVO sweeps were performed on a diesel engine using a fully-flexible variable valve actuation (VVA) system. Experimental data was taken at three speed/load conditions with varied fuel injection and air handling parameters. EEVO was studied for nominal exhaust valve opening (EVO) timing to 90 crank angles early. The results show that TOT is observed to increase by 30C to 80C. However, brake thermal efficiency (BTE) reductions observed are between 10-20% from the BTE at nominal valve timing. It is shown that while EEVO negatively affects the power output during the expansion stroke, at a constant brake torque (with additional fueling), EEVO has no significant effect on the gross indicated power.
2014-10-09
Event
Cylinder deactivation (CDA) at idle conditions results in a reduction in air-to-fuel ratio, and heat transfer surface area. This enables an increase in exhaust temperature for aftertreatment thermal management, and an increase in efficiency via reduced pumping and heat transfer losses. This study focuses on the impact of 3-cylinder CDA on exhaust temperature and efficiency at both loaded and unloaded idle conditions. At the loaded condition, deactivating 3 cylinders provides an increase in exhaust temperature from about 200C (6-cylinders) to approximately 300C (3-cylinders), with no fuel economy penalty. Additionally, at the unloaded condition, CDA provides an increase in exhaust temperature of about 20C, from about 117C to about 135C, with a fuel consumption reduction of 15%-26%.
2014-10-09
Event
This session covers advanced technologies and analysis/design/testing techniques related to powertrain performance, emissions, and electronic controls. It includes both system-level and component-level contents such as engine system design and integration optimization. Typical topics include emissions, fuel economy, combustion, air charging, EGR systems, fuel systems, valvetrains, engine brakes, waste heat recovery, calibration, steady-state and transient performance, engine/powertrain/drivetrain controls, model-based controls, sensors, OBD, and HIL. The topics of engine applications cover on-road, off-road, heavy-duty, and light-duty.
2014-10-09
Event
This session covers advanced technologies and analysis/design/testing techniques related to powertrain performance, emissions, and electronic controls. It includes both system-level and component-level contents such as engine system design and integration optimization. Typical topics include emissions, fuel economy, combustion, air charging, EGR systems, fuel systems, valvetrains, engine brakes, waste heat recovery, calibration, steady-state and transient performance, engine/powertrain/drivetrain controls, model-based controls, sensors, OBD, and HIL. The topics of engine applications cover on-road, off-road, heavy-duty, and light-duty.
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