Skip to content

Acro Режим (Мультикоптер)

  

Режим Acro — це режим RC для виконання акробатичних маневрів, наприклад фліпи, креніння та петлі.

Ручки крена, тангажу та риштування керують швидкістю кутової обертання навколо відповідних вісей, а керування тяги безпосередньо передається до розподілу керування. Коли палиці зосереджені, транспортний засіб зупинить обертання, але залишиться в поточному положенні (на боці, перевернутому або що завгодно) та рухатиметься згідно з поточним імпульсом.

MC Manual Acrobatic Flight

Технічний опис

Manual mode for performing acrobatic maneuvers e.g. flips, rolls and loops.

RC Roll/Pitch/Yaw (RPY) stick inputs control the rate of angular rotation around the respective axes. Throttle is passed directly to control allocation. When sticks are centered the vehicle will stop rotating, but remain in its current orientation (not necessarily level) and moving according to its current momentum.

Потрібен ручний ввід управління (наприклад, за допомогою пульта дистанційного керування, джойстика):

  • Roll, Pitch, Yaw: Assistance from autopilot to stabilize the attitude rate. Position of RC stick maps to the rate of rotation of vehicle in that orientation.
  • Throttle: Manual control via RC sticks. RC input is sent directly to control allocation.

Stick Input Mapping

The default roll, pitch, and yaw input stick mapping for Acro mode is shown below. The curve enables a high turn rate at maximum stick input for performing acrobatic maneuvers, and a zone of lower sensitivity close to the stick center for small corrections.

Acro mode - default input curve

This roll and pitch input stick response can be tuned using the MC_ACRO_EXPO and MC_ACRO_SUPEXPO "exponential" parameters, while the yaw stick input response is tuned using MC_ACRO_EXPO_Y and MC_ACRO_SUPEXPOY. MC_ACRO_EXPO and MC_ACRO_EXPO_Y tune the curve(s) between a linear and cubic curve as shown below. MC_ACRO_SUPEXPO and MC_ACRO_SUPEXPOY allow the shape to be further tuned, modifying the width of the area of reduced sensitivity.

Acro mode - expo - pure linear input curve Acro mode - expo - pure cubic input curve

INFO

The mathematical relationship is:

y=r(fx3+x(1f))(1g)/(1g|x|)$$,wheref=MCACROEXPOorMCACROEXPOY,g=MCACROSUPEXPOorMCACROSUPEXPOY,andristhemaximumrate.Youcanexperimentwiththerelationships[here](https://www.desmos.com/calculator/yty5kgurmc).

Parameters

ParameterDescription
MC_ACRO_EXPOAcro mode "exponential" factor for tuning the stick input curve shape for roll and pitch. Values: 0 Purely linear input curve 1 Purely cubic input curve. Default: 0.69.
MC_ACRO_EXPO_YAcro mode "exponential" factor for tuning the stick input curve shape for yaw. Values: 0 Purely linear input curve 1 Purely cubic input curve. Default: 0.69.
MC_ACRO_SUPEXPOAcro mode "SuperExpo" factor for refining stick input curve shape for the roll and pitch axes (tuned using MC_ACRO_EXPO. Values: 0 Pure Expo function, 0.7 reasonable shape enhancement for intuitive stick feel, 0.95 very strong bent input curve only near maxima have effect. Default: 0.7.
MC_ACRO_SUPEXPOYAcro mode "SuperExpo" factor for refining stick input curve shape for the yaw axis (tuned using MC_ACRO_EXPO_Y. Values: 0 Pure Expo function, 0.7 reasonable shape enhancement for intuitive stick feel, 0.95 very strong bent input curve only near maxima have effect. Default: 0.7.
MC_ACRO_P_MAXMax acro pitch rate. Default: 2 turns per second (720.0 deg/s).
MC_ACRO_R_MAXMax acro roll rate. Default: 2 turns per second (720.0 deg/s).
MC_ACRO_Y_MAXMax acro yaw rate. Default: 1.5 turns per second (540.0 degrees/s).