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Viewing 1 to 30 of 3585
2017-04-06
Event
This session covers transmission and driveline controls. Session will cover topics related to controls hardware, controls software, and controls integration.
2017-04-06
Event
This session covers transmission and driveline controls. Session will cover topics related to controls hardware, controls software, and controls integration.
2017-04-06
Event
This Session includes papers on IVT/CVT systems and related topics.
2017-04-06
Event
This session deals with the automotive transmissions of different types. It includes development of new transmission concepts, transmission enhancements and the advancement of the state of the art of transmission system design & integration with the objective of improving the transmission efficiency, NVH, durability and shift pleaseability.
2017-04-06
Event
This session deals with the automotive transmissions of different types. It includes development of new transmission concepts, transmission enhancements and the advancement of the state of the art of transmission system design & integration with the objective of improving the transmission efficiency, NVH, durability and shift pleaseability.
2017-04-05
Event
Powertrain Electronics play a key role in meeting today's complex emissions and performance requirements, on-board diagnostics, legislated regulations, and product flexibility. This session explores the challenges and future prospects for powertrain controls, including on-board diagnostics, integration with transmissions, flash programming, service, software design and development, unit and system test, and electronics architecture today and in the future.
2017-04-05
Event
This session addresses transmission noise, vibration, rattle issues and design solutions.
2017-04-05
Event
This session addresses transmission noise, vibration, rattle issues and design solutions.
2017-04-05 ...
  • April 5-7, 2017 (8:30 a.m. - 4:30 p.m.) - Detroit, Michigan
  • August 7-9, 2017 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
  • December 4-6, 2017 (8:30 a.m. - 4:30 p.m.) - Troy, Michigan
Training / Education Classroom Seminars
Starting with a look at the transmission's primary function -- to couple the engine to the driveline and provide torque ratios between the two -- this updated and expanded seminar covers the latest transmission systems designed to achieve the most efficient engine operation. Current designs, the components and sub-systems used, their functional modes, how they operate, and the inter-relationships will be discussed. A manual transmission display will be used to explain ratios and how they function within the driveline.
2017-04-04
Event
This session covers transmission and driveline modeling, including topics related to transmission hardware, software, and system integration.
2017-04-04
Event
This session includes papers on the full array of transmission and driveline related components.
2017-04-04
Event
This session includes papers on the full array of transmission and driveline related components.
2017-04-04
Event
This session covers transmission and driveline modeling, including topics related to transmission hardware, software, and system integration.
2017-03-28
Technical Paper
2017-01-1111
Marcello Canova, Luca D'Avico, Cristian Rostiti, Stephanie Stockar, Gang Chen, Michael Prucka, Hussein Dourra
]To improve torque management algorithms for drivability, the powertrain controller must be able to compensate for the nonlinear dynamics of the driveline. In particular, the presence of backlash in the transmission and drive shafts excites sharp torque fluctuations during tip-in or tip-out transients, leading to a deterioration of the vehicle drivability and NVH. This paper proposes a model-based estimator that predicts the wheel torque in an automotive drivetrain, accounting for the effects of backlash and drive shaft flexibility. The starting point of this work is a control-oriented model of the transmission and vehicle drivetrain dynamics that predicts the wheel torque during tip-in and tip-out transients at fixed gear. The estimator is based upon a switching structure that combines a Kalman Filter and an open-loop prediction based on the developed model.
2017-03-28
Technical Paper
2017-01-1107
Christoph Andre Malonga Makosi, Stephan Rinderknecht, Ralf Binz, Frank Uphaus, Frank Kirschbaum PhD
In order to offer a wide range of driving experiences to their customers, original equipment manufacturers implement different driving programs. The driver is capable of manually switching between these programs which alter drivability parameters in the engine control unit. As a result, acceleration forces and gradients are modified, changing the perceived driving experience. Nowadays, drivability is calibrated iteratively through road testing. Hence, the resulting set of parameters is strongly dependent on the individual sentiments of the test engineers. It is shown, that implementing a set of objective criteria offers a way of eliminating personal preferences and sentiment from the drivability calibration process. In combination with the expertise of the testing engineers, the desired vehicle behavior can be transferred into a transient set point sequence to design the acceleration behavior.
2017-03-28
Technical Paper
2017-01-1138
Gary Stevens, Martin Murtagh, Robert Kee, Juliana Early, Roy Douglas, Robert Best
In this paper a dynamic, modular, 1-D vehicle model architecture is presented that improves modelling flexibility and can be adapted rapidly to new advanced vehicle concepts, including hybrid vehicles. Interdependencies between model sub-systems are minimized, thereby improving model flexibility in the development of new vehicle concepts and architectures. Each subsystem of the vehicle model follows a standardized signal architecture, therefore subsystems can be developed, tested and validated separately from the main model and easily re-integrated. The model uses standard dynamic equations to calculate the rotational speed of the desired driveline component within each subsystem i.e. dynamic calculations are carried out with respect to the component of interest. Sample simulations are presented for isolated and integrated components to demonstrate flexibility. Two vehicle test cases are presented.
2017-03-28
Technical Paper
2017-01-1144
Jongryeol JEONG, Ram Vijayagopal, Aymeric Rousseau
Building a vehicle model with an accuracy sufficient for fuel economy analysis is a time consuming job even with the modern day simulation tools. Getting the right kind of data for modelling a vehicle can itself be challenging. While OEMs advertise the power and torque capability of their engines, the efficiency data for the components or the control algorithms are not usually made available for independent verification. US DOE funds the testing of vehicles at Argonne national lab and this test data is publicly available. Argonne is also the premier DOE laboratory for modelling and simulation of vehicles. By combining these two unique capabilities, a process is developed to automatically develop a model for any conventional vehicle that is tested at Argonne. This paper explain the process of analyzing the publicly available test data and computing the various component parameters from that.
2017-03-28
Technical Paper
2017-01-1142
Vanja Ranogajec, Josko Deur
The ever-present pressure on shortening the development cycles in automotive industry requires further development of numerical methods and software tools in support of those development processes. From the perspective of system dynamics analyses and control system designs, the development of methods that allow for automated generation of computationally efficient mathematical models is of a large interest. In the field of automatic transmissions (AT), automated modeling would ultimately include generation of a full-order, minimum-realization mathematical model directly from an AT schematics. Furthermore, it is of interest to derive a method/tool for automated generation of a reduced-order model for an arbitrary clutch state, which would account for the energy-dependent variables related to locked clutches.
2017-03-28
Technical Paper
2017-01-1103
Sergei Viktorovich Aliukov
The inertial continuously variable transmission is a mechanical transmission which is based on the principle of inertia. This transmission has a lot of advantages, namely: compactness, minimum friction losses and high efficiency as a result of the relatively small number of rotating components, a wide range of transformation of the torque. It does not need any conventional friction clutches. This transmission protects the engine from overload when the output shaft is braked. This drive guarantees optimum conditions of work for the engine regardless of the changing of load, and smoothly changes output speed according to the load. Mostly, design of this transmission consists of a pulsed mechanism with unbalanced inertial units and two overrunning clutches. The objects of the investigation are structural dynamic analysis of the continuously variable transmission. The physical and mathematical models of this transmission are developed.
2017-03-28
Technical Paper
2017-01-1096
Robin TEMPORELLI, Philippe Micheau, Maxime Boisvert
Automated Manual Transmission (AMT) based on classic electrohydraulic clutch actuation gives high performances and comfort to a recreational vehicle. However, overall power consumption remains high due to the pump efficiency. Besides, as the pump is often driven by the vehicle’s engine the last is continuously working. Hence, a new electrified clutch based on electromechanical actuation has been designed and prototyped. In this paper, an experimental evaluation of vehicle fuel consumption reduction using the prototyped new electrified clutch is exposed. The original method consists in connecting the prototyped new electrified clutch to a virtual vehicle to test it as it was used in a real vehicle. A dedicated real-time rapid prototyping system (Opal-RT) runs the simplified vehicle’s dynamic and controls clutch algorithm to generate commands for the clutch as function of the measured clutch responses and as function of the simulated vehicle’s dynamic.
Viewing 1 to 30 of 3585

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