This paper presents a systematic model for the simulation and analysis of a power-shift transmission that features a dual-clutch design. The paper models the kinematics, dynamics, and control of the transmission for the analysis of powertrain overall performance and shift transient characteristics. The model is implemented in an object-oriented software tool. Analytical formulations and look-up tables are both used for modeling of powertrain components. The vehicle system model is established by integrating the various components and subsystem models according to the transmission power flow and control logic. The input to the simulation model is the vehicle speed-time profile and the output provides the speed follow-up, engine, and clutch operation status for the drive range and shift processes involved. As a numerical example, the model is used for a vehicle equipped with the power-shift transmission to simulate the speed follow-up over a specified drive range and the dynamic transients during shifts.© 2004 American Institute of Physics.

1.
Walamatsu, H., Ohasho, T., Asatsuke, S., and Saitiou, Y., 2002, “Honda’s 5 Speed All Clutch to Clutch Automatic Transmission,” Proceedings of Transmission and Driveline Systems Symposium 2002, SAE paper No. 2002-01-0932.
2.
Grobpietsch, W., and Sudau, J., 2000, “Dual Clutch for Power-shift Transmissions—A Traditional Engaging Element with New Future,” VDI-Berichte Nr. 1565, pp 259–273.
3.
Bai, S., Moses, R., Schanz, T., and Gorman, M., 2002, “Development of a New Clutch To Clutch Shift Control Technology,” Proceeding of Transmission and Driveling Systems Symposium 2002, SAE paper No. 2002-01-1252.
4.
Tsai
,
L. W.
,
Schultz
,
G.
, and
Higuchi
,
N.
,
2001
, “
A Novel Parallel Hybrid Transmission
,”
ASME J. Mech. Des.
,
123
(
2
), pp.
161
168
.
5.
Zheng, Q., Srinivasan K., and Rizzoni, G., 1998, “Dynamic Modeling and Characterization of Transmission Response for Controller Design,” SAE paper No. 981094.
6.
Pan, C. H., and Moskwa, J., 1995, “Dynamic Modeling and Simulation of the Ford AOD Automobile Transmission,” SAE paper No. 950899.
7.
Hong, K., and Lee, K., 1995, “An Object-Oriented Modular for Integrated Gasoline Engine and Automatic Transmission Control,” SAE paper No. 950899.
8.
Megli, T. W., Haghgooie, M., and Colbin, D. S., 1999, “Shift Characteristics of A 4-Speed Automatic Transmission,” SAE paper No. 1999-01-1060.
9.
Zou
,
Z.
,
Zhang
,
Y.
,
Zhang
,
X.
, and
Tobler
,
W.
,
2001
, “
Modeling and Simulation of Traction Drive Dynamics and Control
,”
ASME J. Mech. Des.
,
123
(
4
), pp.
556
561
.
10.
Yasuoka, M., Uchida, M., Katakuta, S., and Yoshino, T., 1999, “An Integrated control Algorithm for an SI Engine and CVT,” SAE paper No. 1999-01-0752.
11.
Sakagachie, S., Kimula, E., and Yamamoto, K., 1999, “Development of an Engine-CVT Integrated Control System,” SAE paper No. 1999-01-0751.
12.
Mayer, T. and Schroeder, D., 1996, “Robust Control of a Parallel Hybrid Drivetrain with a CVT,” SAE paper No. 960233.
13.
Schmid, A., Dietrich, P., Ginsburg, S., and Greeting, H., 1995, “Controlling a CVT-Equipped Hybrid Car,” SAE paper No. 950492.
14.
Tiller, M., Bowles, P., and Elmqvist, H., 2000, “Detailed Vehicle Powertrain Modeling in Modelica,” Modelica Workshop 2000 Proceeding, pp. 169–178.
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