suboptimumg.log_analysis.drivetrain#

suboptimumg.log_analysis.drivetrain.add_rear_slip_ratio(data, wheel_speed_col='pcm.moc.motor.wheelSpeed', low_speed_thresh=1.0)[source]#

Add the rear axle longitudinal slip ratio: (v_wheel - v_ground) / v_ground.

Positive values mean driven wheels spinning faster than ground speed (traction loss). Requires add_groundspeed and the correct_motor_data preprocessing step. Stores rear.slipRatio.

Parameters:

  • low_speed_thresh (float) – Ground speed (m/s) below which slip ratio is forced to zero.

  • data (SingleRunData)

  • wheel_speed_col (str)

Return type:

SingleRunData