Adams Car Package > Adams Car > Appendix > Requests > Vehicle Dynamics Durability Requests

Vehicle Dynamics Durability Requests

Request 1103

Request 1103 (req1103) used in Adams Car to computes steering wheel rotation, pitman arm rotation or rack translation, and (for steering gear w/ pitman only) rotation difference between steering wheel and pitman arm. Refer to special request Steering Statistics.

Request 1106

Request 1106 (req1106) used in Adams Car to computes the ideal steer radius, average steer angle, outside turn diameter, either linkage ratio or rack-and-pinion ratio, Ackerman angle, and percent Ackerman. Refer to special request Turn Statistics.

Request 1117

Request 1117 (req1117) used in Adams Car to computes steering wheel angle, lower intermediate shaft angle, steering gear input angle, as well as the torque at the steering wheel and in the column rag joint at each time step. Refer to special request Steering Column Statistics.

Request 1114

Request 1114 (req1114) used in Adams Car to computes the translational and/or rotational vectors for any displacement, velocity, acceleration, or force request. Refer to special request Vector Scaling.

Request 1131

Request 1131 (req1131) used in Adams Car to computes the front, rear, and percent total lateral load distribution as well as the front and rear axle slip and neutral steer angles. Refer to special request Vehicle Dynamics Parameters.

Request 1090

Request 1090 (req1090) used in Adams Car to computes vehicle handling statistics such as lateral acceleration, yaw rate, roll angle, pitch angle, body sideslip angle, and longitudinal velocity in standard testing units. Refer to special request Vehicle Dynamics.

Request 1119

Request 1119 (req1119) used in Adams Car to computes instantaneous steering sensitivity, roll gradient, sideslip gradient, understeer from steering wheel angle, and understeer from just the slip angles at each time step. Refer to special request Vehicle Dynamics Parameters.

Request 1121

Request 1121 (req1121) used in Adams Car to computes the longitudinal and lateral accelerations at the accelerometer location. Refer to special request Body Acceleration as Measured by an Accelerometer.

Request 1115

Request 1115 (req1115) used in Adams Car to computes and scales string pot deflections at all four wheels then calculates the roll and pitch of the body on the suspension. Refer to special request String Potentiometer Processor.

Request 1140

Request 1140 (req1140) used in Adams Car to computes Turn radius is calculated by determining the lateral velocity and lateral acceleration of I marker with respect to J marker in I marker's coordinate system. Refer to special request Turn Radius.

Request 5150

Request 5150 (req5150) used in Adams Car to computes global gyro displacement.
 
Column
Description
Units
1
Global X Position at Gyro
mm
2
Global Y Position at Gyro
mm
3
Global Z Position at Gyro
mm
4
Sprung Mass Yaw Angle
deg
5
Sprung Mass Pitch Angle
deg
6
Sprung Mass Roll Angle
deg
Example
REQ/5150,DIS,I=5199,J=0100,C=GLOBAL GYRO DISPLACEMENT

Request 5160

Request 5160 (req5160) used in Adams Car to computes vehicles front lift/dive displacement.
 
Column
Description
Units
1
Front Lift/Dive X Displacement
mm
2
Front Lift/Dive Y Displacement
mm
3
Front Lift/Dive Z Displacement
mm
4
Front Lift/Dive Yaw Angle
deg
5
Front Lift/Dive Pitch Angle
deg
6
Front Lift/Dive Roll Angle
deg
Example
REQ/5160,DIS,I=0080,J=5151,C=FRONT LIFT/DIVE DISPLACEMENT

Request 5161

Request 5161 (req5161) used in Adams Car to computes vehicles rear lift/dive displacement.
 
Column
Description
Units
1
Rear Lift/Dive X Displacement
mm
2
Rear Lift/Dive Y Displacement
mm
3
Rear Lift/Dive Z Displacement
mm
4
Rear Lift/Dive Yaw Angle
deg
5
Rear Lift/Dive Pitch Angle
deg
6
Rear Lift/Dive Roll Angle
deg
Example
REQ/5161,DIS,I=0081,J=5152,C=REAR LIFT/DIVE DISPLACEMENT

Request 1153

Request 1153 (req1153) used in Adams Car to computes wheel lift metrics.