Class MotionMagicDutyCycle
public class MotionMagicDutyCycle extends ControlRequest
Motion Magic® produces a motion profile in real-time while attempting to honor the Cruise Velocity, Acceleration, and Jerk value specified via the Motion Magic® configuration values. Target position can be changed on-the-fly and Motion Magic® will do its best to adjust the profile. This control mode is duty cycled based, so relevant closed-loop gains will use fractional duty cycle for the numerator: +1.0 represents full forward output.
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Field Summary
Fields Modifier and Type Field Description double
configTimeout
The timeout when sending configs associated with this controlboolean
EnableFOC
Set to true to use FOC commutation, which increases peak power by ~15%.double
FeedForward
Feedforward to apply in fractional units between -1 and +1.boolean
OverrideBrakeDurNeutral
Set to true to static-brake the rotor when output is zero (or within deadband).double
Position
Position to drive toward in rotations.int
Slot
Select which gains are applied by selecting the slot.double
UpdateFreqHz
The period at which this control will update at. -
Constructor Summary
Constructors Constructor Description MotionMagicDutyCycle(double Position)
Requests Motion Magic® to target a final position using a motion profile.MotionMagicDutyCycle(double Position, boolean EnableFOC, double FeedForward, int Slot, boolean OverrideBrakeDurNeutral)
Requests Motion Magic® to target a final position using a motion profile. -
Method Summary
Modifier and Type Method Description void
forceApplyConfigs()
Forces configs to be applied the next time this is used in a setControl.StatusCode
sendRequest(String network, int deviceHash, boolean cancelOtherRequests)
String
toString()
MotionMagicDutyCycle
withEnableFOC(boolean newEnableFOC)
Modifies this Control Request's EnableFOC parameter and returns itself for method-chaining and easier to use request API.MotionMagicDutyCycle
withFeedForward(double newFeedForward)
Modifies this Control Request's FeedForward parameter and returns itself for method-chaining and easier to use request API.MotionMagicDutyCycle
withOverrideBrakeDurNeutral(boolean newOverrideBrakeDurNeutral)
Modifies this Control Request's OverrideBrakeDurNeutral parameter and returns itself for method-chaining and easier to use request API.MotionMagicDutyCycle
withPosition(double newPosition)
Modifies this Control Request's Position parameter and returns itself for method-chaining and easier to use request API.MotionMagicDutyCycle
withSlot(int newSlot)
Modifies this Control Request's Slot parameter and returns itself for method-chaining and easier to use request API.MotionMagicDutyCycle
withUpdateFreqHz(double newUpdateFreqHz)
Sets the period at which this control will update at.
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Field Details
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Position
Position to drive toward in rotations. -
EnableFOC
Set to true to use FOC commutation, which increases peak power by ~15%. Set to false to use trapezoidal commutation. FOC improves motor performance by leveraging torque (current) control. However, this may be inconvenient for applications that require specifying duty cycle or voltage. CTR-Electronics has developed a hybrid method that combines the performances gains of FOC while still allowing applications to provide duty cycle or voltage demand. This not to be confused with simple sinusoidal control or phase voltage control which lacks the performance gains. -
FeedForward
Feedforward to apply in fractional units between -1 and +1. -
Slot
Select which gains are applied by selecting the slot. Use the configuration api to set the gain values for the selected slot before enabling this feature. Slot must be within [0,2]. -
OverrideBrakeDurNeutral
Set to true to static-brake the rotor when output is zero (or within deadband). Set to false to use the NeutralMode configuration setting (default). This flag exists to provide the fundamental behavior of this control when output is zero, which is to provide 0V to the motor. -
UpdateFreqHz
The period at which this control will update at. This is designated in Hertz, with a minimum of 20 Hz (every 50 ms) and a maximum of 1000 Hz (every 1 ms).If this field is set to 0 Hz, the control request will be sent immediately as a one-shot frame. This may be useful for advanced applications that require outputs to be synchronized with data acquisition. In this case, we recommend not exceeding 50 ms between control calls.
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configTimeout
The timeout when sending configs associated with this control
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Constructor Details
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MotionMagicDutyCycle
public MotionMagicDutyCycle(double Position, boolean EnableFOC, double FeedForward, int Slot, boolean OverrideBrakeDurNeutral)Requests Motion Magic® to target a final position using a motion profile. Users can optionally provide a duty cycle feedforward.Motion Magic® produces a motion profile in real-time while attempting to honor the Cruise Velocity, Acceleration, and Jerk value specified via the Motion Magic® configuration values. Target position can be changed on-the-fly and Motion Magic® will do its best to adjust the profile. This control mode is duty cycled based, so relevant closed-loop gains will use fractional duty cycle for the numerator: +1.0 represents full forward output.
- Parameters:
Position
- Position to drive toward in rotations.EnableFOC
- Set to true to use FOC commutation, which increases peak power by ~15%. Set to false to use trapezoidal commutation. FOC improves motor performance by leveraging torque (current) control. However, this may be inconvenient for applications that require specifying duty cycle or voltage. CTR-Electronics has developed a hybrid method that combines the performances gains of FOC while still allowing applications to provide duty cycle or voltage demand. This not to be confused with simple sinusoidal control or phase voltage control which lacks the performance gains.FeedForward
- Feedforward to apply in fractional units between -1 and +1.Slot
- Select which gains are applied by selecting the slot. Use the configuration api to set the gain values for the selected slot before enabling this feature. Slot must be within [0,2].OverrideBrakeDurNeutral
- Set to true to static-brake the rotor when output is zero (or within deadband). Set to false to use the NeutralMode configuration setting (default). This flag exists to provide the fundamental behavior of this control when output is zero, which is to provide 0V to the motor.
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MotionMagicDutyCycle
Requests Motion Magic® to target a final position using a motion profile. Users can optionally provide a duty cycle feedforward.Motion Magic® produces a motion profile in real-time while attempting to honor the Cruise Velocity, Acceleration, and Jerk value specified via the Motion Magic® configuration values. Target position can be changed on-the-fly and Motion Magic® will do its best to adjust the profile. This control mode is duty cycled based, so relevant closed-loop gains will use fractional duty cycle for the numerator: +1.0 represents full forward output.
- Parameters:
Position
- Position to drive toward in rotations.
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Method Details
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toString
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sendRequest
- Specified by:
sendRequest
in classControlRequest
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withPosition
Modifies this Control Request's Position parameter and returns itself for method-chaining and easier to use request API.- Parameters:
newPosition
- Parameter to modify- Returns:
- Itself
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withEnableFOC
Modifies this Control Request's EnableFOC parameter and returns itself for method-chaining and easier to use request API.- Parameters:
newEnableFOC
- Parameter to modify- Returns:
- Itself
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withFeedForward
Modifies this Control Request's FeedForward parameter and returns itself for method-chaining and easier to use request API.- Parameters:
newFeedForward
- Parameter to modify- Returns:
- Itself
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withSlot
Modifies this Control Request's Slot parameter and returns itself for method-chaining and easier to use request API.- Parameters:
newSlot
- Parameter to modify- Returns:
- Itself
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withOverrideBrakeDurNeutral
Modifies this Control Request's OverrideBrakeDurNeutral parameter and returns itself for method-chaining and easier to use request API.- Parameters:
newOverrideBrakeDurNeutral
- Parameter to modify- Returns:
- Itself
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withUpdateFreqHz
Sets the period at which this control will update at. This is designated in Hertz, with a minimum of 20 Hz (every 50 ms) and a maximum of 1000 Hz (every 1 ms).If this field is set to 0 Hz, the control request will be sent immediately as a one-shot frame. This may be useful for advanced applications that require outputs to be synchronized with data acquisition. In this case, we recommend not exceeding 50 ms between control calls.
- Parameters:
newUpdateFreqHz
- Parameter to modify- Returns:
- Itself
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forceApplyConfigs
Forces configs to be applied the next time this is used in a setControl.This is not necessary in the majority of cases, because Phoenix will make sure configs are properly set when they are not already set
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