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. Power-off in a Straight Line Event
The parameters available in the Power off in a straight line event are detailed in the
following table:
| Parameter | Description |
|---|---|
| Units | Velocity unit selection (Model, m/s, km/h, mph). |
| Velocity | The initial speed of the vehicle during the steady state driven portion of the event. |
| Throttle step begin | 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 using a step function. |
| End time | Absolute end time of the event, in seconds. |
| Print interval | Time interval of data output to the plot file (.plt) and graphics file (.h3d). |