Full-Vehicle Analysis: Parking Effort

Full-Vehicle Assembly

Select the Full-Vehicle Assembly you want to analyze. The menu lists all full-vehicle assemblies currently open in your session.

Assembly Variant

Select the assembly variant you want to analyze. The menu lists all full-vehicle assembly variants of the chosen assembly.

Switches to the selected variant and adds the required testrig as needed.

Output Prefix

Enter a string that specifies the Analysis Output Name. The string can contain only alphanumeric characters and underscores (_). Adams Car appends the suffix _fho to form the complete analysis name. For example, if you enter test_45 as the output prefix, the analysis name becomes test_45_fho.

Solver Settings File

Select one or more files (extension .ssf) defining the solver settings to be temporarily applied for this simulation (optional).

Opens the Solver Settings File (extension .ssf) editor dialog box.

Number of Steps / Step Size / Step Frequency

Select either of the following:

Simulation Mode

Select interactive, background, graphical, event or files only.

See Mode of Simulation: Interactive, Mode of Simulation: Graphical, Mode of Simulation: Background, Mode of Simulation: Files_only, Mode of Simulation: Event_only.

Enter the name of a file that contains road data information. The tire subsystems use this information to calculate the tire/road interaction forces.

Tips on Entering File Names in Text Boxes

Import and visualize road graphics from file.

Remove road or path graphics.

View road / path file in info window.

Edit road / path file in road builder or text editor.

Gear Position

Specify the initial transmission gear for the analysis. The powertrain subsystem uses this parameter that generally acts as a gain for the throttle-demand output from the cruise control.

Suggested Gear Position based on desired Initial Velocity (or equivalent lateral acceleration and curvature radius for constant radius cornering events). The button suggests the gear position for the event in order for the engine speed to be in the range between stall speed and max revolution limit.

Method

Select a Method for the Parking Effort Analysis:

If you select Zero Velocity method, Adams Car displays the following option:

Duration of Maneuver

Enter the time interval during which Adams Car performs the parking effort analysis. This is either used to set the Cycle Length of the Sine wave and/or to set end condition of the analysis.

Steering Control

Select either Sine or Spline to set Control Type of the steering.

If you select Sine as Steering Control, Adams Car displays the following option:

Steering Amplitude

Enter steering wheel angle to set amplitude of the sine wave

If you select Spline as Steering Control, Adams Car displays the following option:

Driver Data File

Select a driver data file (.dcd) that defines an open- or closed-loop speed controller. Learn about Working with Driver Control Data Files (.dcd).

Use Frictionless Surface to Front Wheels

If selected, this will automatically generate 2D road property file in the current working directory and apply it to the front wheels.

If you select Low Velocity method, Adams Car displays the following option:

Steering Amplitude

Enter steering wheel angle.

Initial Velocity

Enter the initial speed of the vehicle in the units specified in the pull-down menu to the right of the Initial Velocity text box.

Create Event Log File

Select if you want Adams Car to write information about the assembled model and analysis to an Analysis Log File.

Add Vehicle Dynamics Requests

Activates requests computing certain vehicle dynamics outputs during the full vehicle event.

Some of these additional requests are required for standard post-processing (reports and plots).

Compute Characteristic Values

Activates requests computing suspension and steering characteristics during the full vehicle event.

The additional requests are equivalent to those previously already available for suspension analysis.

See Output of Suspension Analyses in Adams Car - Running Analysis for more details.

Select to display a dialog box where you can add multi-line comments to any entity, to describe its purpose and function. Adams Car displays different comments dialog boxes, depending on the entity type for which you want to record comments:

Learn about Recording Comments.

Select to display an Alignment dialog box where you can set toe, camber and caster alignment values.