HVE Driver Model (Path Follower) in EDSMAC4 - The Driver Controls
for an EDSMAC4 event will now include the ability to use the HVE
Driver Model (Path Follower). The HVE Driver allows the HVE or
HVE-2D user to define a path using target positions. Using this
path, the simulation model (in this case EDSMAC4) determines the
steering inputs required to make the vehicle follow the path. The
HVE Driver takes into account the limitations of the driver ability
for steering rate and response, as well as the vehicle parameters,
when determining the best possible steering inputs. (Refer to the
Summer 2005 EDC Technical Newsletter for more details.)
* Additional Tire Models - Additional Tire Model options for
SIMON, including the Radial Spring, Soft Soil and Sidewall Impact
models. (Refer to the Technical Session of the Winter 2005 EDC
Technical Newsletter or HVE White Paper WP-2005-6 for more detailed
* Enhanced Steer Axis Geometry - The
wheels may be steered about an axis defined by user-entered caster
and inclination angles. Steering offset (also called scrub radius)
is also modeled. These changes enable the simulation of the
self-steering and brake- or throttle-induced steering moments that
can exist in all modern vehicles.
* Collision Acceleration Threshold - The Collision
Acceleration Threshold used by the collision algorithms in EDSMAC4
and DyMESH can now be changed from the default value of 1 g using
the field available in the Calculation Options dialog.
* HTT and Dual Processors - Direct support for Hyper-Thread
Technology and Dual Processors - Users will not have to disable
Hyper-Threading or Set Affinity of hve.exe to a single processor in
order to create or run events.
* Event Status in Playback - Event Status is now displayed in
the Report Information dialog in the Playback Editor - When adding
reports in Playback, the user will clearly see that an event has
output tracks available if the word "Executed" is displayed in the
dialog's Event Status field. If the event does not have output
tracks available, then the field will display "Not Executed (No
* Multiple Events in Report Information Dialog - When adding
additional reports to display in Playback, the Report Information
dialog will remember the Event previously selected by the user.
Users with multiple events in their case will find this feature
helps them efficiently add the correct additional reports for
viewing and printing.
* Updated Inertias Dialog - The Inertial Data dialog found in
the Vehicle Editor now displays the Total Yaw Inertia and the Sprung
Mass Yaw Inertia for the vehicle. This will help both HVE and HVE-2D
users easily confirm that they are using the desired values in their
reconstruction or simulation events.
* Vehicle Mesh Enhancements - Additional enhancements for
reducing run-times when using DyMESH, such as checks for water tight
meshes, vertex welding, and selection of mesh object groups to
include in the calculations.