This site will work and look better in a browser that supports web standards, but it is accessible to any browser or Internet device.
Biologically-Inspired Terrain-Based Localization: For millions of years, our ancestors kept track of their location and orientation by looking at invariant features in far distance. The same method is used here as a means to estimate a vehicle's orientation in space, for example matching a real image (above left) to a virtual one (above right). These estimates are important because several key chassis instabilities of a vehicle, namely sliding and rollover, require accurate knowledge of a vehicle's angular orientation in space.
The movie below has three images: the left is looking out the front of the
car as we rotate the camera around. The middle picture is a rendering of the
horizon area based on the approximate position of the vehicle at the test track
and a digitized surface map, the right movie is the rendered scene matched
to the real picture by applying artificial rotations to the rendering system. At
the bottom are three plots of roll, pitch, yaw showing agreement to within about
0.2 deg. Our ancestors on an African savannah would be proud!
See my Research page for more information.
[AVI] (1 MB)

Terrain-Aware Robotics: High-speed operation of autonomous mobile robots
is challenged by the impact of terrain features on the dynamics and stability of
the chassis. This video shows a new tank robot platform, the Tankbot, that is
currently being used to study high-speed dynamic models, human-vehicle
interaction, and autonomous and driver-assist control of these vehicles. See my Research page for more information.
[AVI 15Mb]
[WMV 2Mb]
to the Intelligent Vehicles and Systems Group at Penn State University, the research group primarily affiliated with and maintained by Dr. Sean Brennan and his colleagues and detailing their interest in vehicle dynamics, control, sensing, and embedded systems. This is a very new site*, so keep checking back regularly for updates.
Contact me at .
2008_04_08 Michael Petersheim has his Master defense, "Scaling of Hybrid Electric Vehicle Components for Hardware-in-the-Loop Simulation", at Room 312, Leonhard Building, 1:00 pm - 3:00 pm.
2008_04_04 Joseph Yutko has his Master defense, "Complex Vehicle Reliability: A Systematic Failure Rate Approach", at Room 314 Leonhard Building, 10:00 am - 12:00 pm.
2008_02_14 Finished digitally scanning nearly all the major roadways in North Carolina.
2007_02_27 Nan Yu has his PhD defense, “Yaw Stability Enhancement for Buses by Active Front-Wheel Steering Control” Room 207, PTI. 3:00 pm – 5:30 pm.
2007_02_23 Farewell party for Saravanan Muthia. Good luck at GM Powertrain!
2007_02_19 Vishi Gupta passed his comprehensive exam
Dr. Brennan's Teaching Portal
Mechanical and Nuclear Engineering
The Pennsylvania Transportation Institute
* Web page design courtesy of Jack Langelaan, 2007_02_20