AROT_ parameters

15 parameters in the AROT_ family. ArduCopter 4.7 only — other vehicles share many of these names but not always the same ranges or meanings.

AROT_COL_FILT_E

Entry Phase Collective Filter

Cut-off frequency for collective low pass filter. For the entry phase. Acts as a following trim. Must be higher than AROT_COL_FILT_G.

Units

Hz

Range

0.2 to 0.5

Increment

0.01

User level

Standard

AROT_COL_FILT_G

Glide Phase Collective Filter

Cut-off frequency for collective low pass filter. For the glide phase. Acts as a following trim. Must be lower than AROT_COL_FILT_E.

Units

Hz

Range

0.03 to 0.15

Increment

0.01

User level

Standard

AROT_ENABLE

Enable settings for RSC Setpoint

Allows you to enable (1) or disable (0) the autonomous autorotation capability.

User level

Standard

Values

Value

Meaning

0

Disabled

1

Enabled

AROT_FWD_D

Forward Speed Controller D Gain

Provides damping to velocity controller.

Range

0.00 to 1.00

Increment

0.001

User level

Advanced

AROT_FWD_FF

Forward Speed Controller Feed Forward Gain

Produces an output that is proportional to the magnitude of the target.

Range

0 to 1

Increment

0.01

User level

Advanced

AROT_FWD_FLTD

Forward Speed Controller input filter for D term

This filter low pass filter is applied to the input for D terms.

Units

Hz

Range

0 to 100

User level

Advanced

AROT_FWD_FLTE

Forward Speed Controller Error Filter

This filter low pass filter is applied to the input for P and I terms.

Units

Hz

Range

0 to 100

User level

Advanced

AROT_FWD_I

Forward Speed Controller I Gain

Corrects long-term difference in desired velocity to a target acceleration.

Range

0.02 to 1.00

Increment

0.01

User level

Advanced

AROT_FWD_IMAX

Forward Speed Controller I Gain Maximum

Constrains the target acceleration that the I gain will output.

Range

1.000 to 8.000

User level

Standard

AROT_FWD_P

Forward Speed Controller P Gain

Converts the difference between desired forward speed and actual speed into an acceleration target that is passed to the pitch angle controller.

Range

1.000 to 8.000

User level

Standard

AROT_FWD_SP_TARG

Target Glide Body Frame Forward Speed

Target ground speed in cm/s for the autorotation controller to try and achieve/ maintain during the glide phase.

Units

m/s

Range

8 to 20

Increment

0.5

User level

Standard

AROT_HS_P

P gain for head speed controller

Increase value to increase sensitivity of head speed controller during autonomous autorotation.

Range

0.3 to 1

Increment

0.01

User level

Standard

AROT_HS_SENSOR

Main Rotor RPM Sensor

Allocate the RPM sensor instance to use for measuring head speed. RPM1 = 0. RPM2 = 1.

Units

s

Range

0.5 to 3

Increment

0.1

User level

Standard

AROT_HS_SET_PT

Target Head Speed

The target head speed in RPM during autorotation. Start by setting to desired hover speed and tune from there as necessary.

Units

RPM

Range

1000 to 2800

Increment

1

User level

Standard

AROT_XY_ACC_MAX

Body Frame XY Acceleration Limit

Maximum body frame acceleration allowed in the in speed controller. This limit defines a circular constraint in accel. Minimum used is 0.5 m/s/s.

Units

m/s/s

Range

0.5 to 8.0

Increment

0.1

User level

Standard