Power-off in a Straight Line

A Power-off in a straight line event simulates the dynamics of a vehicle due to a sudden removal of drive torque.

The Altair Driver maintains the straight line path and controls the throttle. Engine motoring torque is not applied after the throttle torque is removed. A plot template is available to plot the results.



Figure 1.
The parameters available in the Power off in a straight line event are detailed in the following table:
Parameter Description
Throttle delay The absolute time, in seconds, when the throttle torque begins to be removed.
Throttle step duration The length of the time the throttle controller takes to remove all torque from the drivetrain. The removal is done using a step function.
Velocity The initial speed of the vehicle (miles per hour) during the steady state driven portion of the event.
End time Absolute end time of the event, in seconds.
Print interval Data is output to the plot files and graphics file at this time interval (seconds).