Request a specified voltage with a differential position closed-loop. More...

#include <ctre/phoenix6/controls/DifferentialVoltage.hpp>

Inheritance diagram for ctre::phoenix6::controls::DifferentialVoltage:

Public Member Functions
	DifferentialVoltage (units::voltage::volt_t TargetOutput, units::angle::turn_t DifferentialPosition, bool EnableFOC=true, int DifferentialSlot=1, bool OverrideBrakeDurNeutral=false, bool LimitForwardMotion=false, bool LimitReverseMotion=false)
	Request a specified voltage with a differential position closed-loop. More...

DifferentialVoltage &	WithTargetOutput (units::voltage::volt_t newTargetOutput)
	Modifies this Control Request's TargetOutput parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithDifferentialPosition (units::angle::turn_t newDifferentialPosition)
	Modifies this Control Request's DifferentialPosition parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithEnableFOC (bool newEnableFOC)
	Modifies this Control Request's EnableFOC parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithDifferentialSlot (int newDifferentialSlot)
	Modifies this Control Request's DifferentialSlot parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithOverrideBrakeDurNeutral (bool newOverrideBrakeDurNeutral)
	Modifies this Control Request's OverrideBrakeDurNeutral parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithLimitForwardMotion (bool newLimitForwardMotion)
	Modifies this Control Request's LimitForwardMotion parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithLimitReverseMotion (bool newLimitReverseMotion)
	Modifies this Control Request's LimitReverseMotion parameter and returns itself for method-chaining and easier to use request API. More...

DifferentialVoltage &	WithUpdateFreqHz (units::frequency::hertz_t newUpdateFreqHz)
	Sets the period at which this control will update at. More...

std::string	ToString () const override
	Returns a string representation of the object. More...

std::map< std::string, std::string >	GetControlInfo () const override
	Gets information about this control request. More...

Public Member Functions inherited from ctre::phoenix6::controls::ControlRequest
	ControlRequest (std::string name)
	Constructs a new Control Request with the given name. More...

std::string const &	GetName () const

virtual std::map< std::string, std::string >	GetControlInfo () const =0
	Gets information about this control request. More...

virtual	~ControlRequest ()=default

virtual std::string	ToString () const =0

Public Attributes
units::voltage::volt_t	TargetOutput
	Voltage to attempt to drive at. More...

units::angle::turn_t	DifferentialPosition
	Differential position to drive towards in rotations. More...

bool	EnableFOC
	Set to true to use FOC commutation (requires Phoenix Pro), which increases peak power by ~15%. More...

int	DifferentialSlot
	Select which gains are applied to the differential controller by selecting the slot. More...

bool	OverrideBrakeDurNeutral
	Set to true to static-brake the rotor when output is zero (or within deadband). More...

bool	LimitForwardMotion
	Set to true to force forward limiting. More...

bool	LimitReverseMotion
	Set to true to force reverse limiting. More...

units::frequency::hertz_t	UpdateFreqHz {100_Hz}
	The period at which this control will update at. More...

Additional Inherited Members
Protected Member Functions inherited from ctre::phoenix6::controls::ControlRequest
	ControlRequest (ControlRequest const &)=default

	ControlRequest (ControlRequest &&)=default

ControlRequest &	operator= (ControlRequest const &)=default

ControlRequest &	operator= (ControlRequest &&)=default

Protected Attributes inherited from ctre::phoenix6::controls::ControlRequest
std::string	name

Detailed Description

Request a specified voltage with a differential position closed-loop.

This control mode will attempt to apply the specified voltage to the motor. If the supply voltage is below the requested voltage, the motor controller will output the supply voltage. It will also set the motor's differential position setpoint to the specified position.

Constructor & Destructor Documentation

◆ DifferentialVoltage()

ctre::phoenix6::controls::DifferentialVoltage::DifferentialVoltage	(	units::voltage::volt_t	TargetOutput,
		units::angle::turn_t	DifferentialPosition,
		bool	EnableFOC = `true`,
		int	DifferentialSlot = `1`,
		bool	OverrideBrakeDurNeutral = `false`,
		bool	LimitForwardMotion = `false`,
		bool	LimitReverseMotion = `false`
	)

inline

Request a specified voltage with a differential position closed-loop.

This control mode will attempt to apply the specified voltage to the motor. If the supply voltage is below the requested voltage, the motor controller will output the supply voltage. It will also set the motor's differential position setpoint to the specified position.

Parameters

TargetOutput	Voltage to attempt to drive at
DifferentialPosition	Differential position to drive towards in rotations
EnableFOC	Set to true to use FOC commutation (requires Phoenix Pro), 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.

Parameters

DifferentialSlot	Select which gains are applied to the differential controller 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.
LimitForwardMotion	Set to true to force forward limiting. This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.
LimitReverseMotion	Set to true to force reverse limiting. This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.

Member Function Documentation

◆ GetControlInfo()

std::map< std::string, std::string > ctre::phoenix6::controls::DifferentialVoltage::GetControlInfo ( ) const

inlineoverridevirtual

Gets information about this control request.

Returns: Map of control parameter names and corresponding applied values

Implements ctre::phoenix6::controls::ControlRequest.

◆ ToString()

std::string ctre::phoenix6::controls::DifferentialVoltage::ToString ( ) const

inlineoverridevirtual

Returns a string representation of the object.

Returns: a string representation of the object.

Implements ctre::phoenix6::controls::ControlRequest.

◆ WithDifferentialPosition()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithDifferentialPosition ( units::angle::turn_t newDifferentialPosition )

inline

Modifies this Control Request's DifferentialPosition parameter and returns itself for method-chaining and easier to use request API.

Differential position to drive towards in rotations

Parameters

newDifferentialPosition Parameter to modify

Returns: Itself

◆ WithDifferentialSlot()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithDifferentialSlot ( int newDifferentialSlot )

inline

Modifies this Control Request's DifferentialSlot parameter and returns itself for method-chaining and easier to use request API.

Select which gains are applied to the differential controller 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].

Parameters

newDifferentialSlot Parameter to modify

Returns: Itself

◆ WithEnableFOC()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithEnableFOC ( bool newEnableFOC )

inline

Modifies this Control Request's EnableFOC parameter and returns itself for method-chaining and easier to use request API.

Set to true to use FOC commutation (requires Phoenix Pro), 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.

Parameters

newEnableFOC Parameter to modify

Returns: Itself

◆ WithLimitForwardMotion()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithLimitForwardMotion ( bool newLimitForwardMotion )

inline

Modifies this Control Request's LimitForwardMotion parameter and returns itself for method-chaining and easier to use request API.

Set to true to force forward limiting. This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.

Parameters

newLimitForwardMotion Parameter to modify

Returns: Itself

◆ WithLimitReverseMotion()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithLimitReverseMotion ( bool newLimitReverseMotion )

inline

Modifies this Control Request's LimitReverseMotion parameter and returns itself for method-chaining and easier to use request API.

Set to true to force reverse limiting. This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.

Parameters

newLimitReverseMotion Parameter to modify

Returns: Itself

◆ WithOverrideBrakeDurNeutral()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithOverrideBrakeDurNeutral ( bool newOverrideBrakeDurNeutral )

inline

Modifies this Control Request's OverrideBrakeDurNeutral parameter and returns itself for method-chaining and easier to use request API.

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.

Parameters

newOverrideBrakeDurNeutral Parameter to modify

Returns: Itself

◆ WithTargetOutput()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithTargetOutput ( units::voltage::volt_t newTargetOutput )

inline

Modifies this Control Request's TargetOutput parameter and returns itself for method-chaining and easier to use request API.

Voltage to attempt to drive at

Parameters

newTargetOutput Parameter to modify

Returns: Itself

◆ WithUpdateFreqHz()

DifferentialVoltage & ctre::phoenix6::controls::DifferentialVoltage::WithUpdateFreqHz ( units::frequency::hertz_t newUpdateFreqHz )

inline

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

Member Data Documentation

◆ DifferentialPosition

units::angle::turn_t ctre::phoenix6::controls::DifferentialVoltage::DifferentialPosition

Differential position to drive towards in rotations.

◆ DifferentialSlot

int ctre::phoenix6::controls::DifferentialVoltage::DifferentialSlot

Select which gains are applied to the differential controller 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].

◆ EnableFOC

bool ctre::phoenix6::controls::DifferentialVoltage::EnableFOC

Set to true to use FOC commutation (requires Phoenix Pro), 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.

◆ LimitForwardMotion

bool ctre::phoenix6::controls::DifferentialVoltage::LimitForwardMotion

Set to true to force forward limiting.

This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.

◆ LimitReverseMotion

bool ctre::phoenix6::controls::DifferentialVoltage::LimitReverseMotion

Set to true to force reverse limiting.

This allows users to use other limit switch sensors connected to robot controller. This also allows use of active sensors that require external power.

◆ OverrideBrakeDurNeutral

bool ctre::phoenix6::controls::DifferentialVoltage::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.

◆ TargetOutput

units::voltage::volt_t ctre::phoenix6::controls::DifferentialVoltage::TargetOutput

Voltage to attempt to drive at.

◆ UpdateFreqHz

units::frequency::hertz_t ctre::phoenix6::controls::DifferentialVoltage::UpdateFreqHz {100_Hz}

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.

The documentation for this class was generated from the following file:

ctre/phoenix6/controls/DifferentialVoltage.hpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ DifferentialVoltage()

Member Function Documentation

◆ GetControlInfo()

◆ ToString()

◆ WithDifferentialPosition()

◆ WithDifferentialSlot()

◆ WithEnableFOC()

◆ WithLimitForwardMotion()

◆ WithLimitReverseMotion()

◆ WithOverrideBrakeDurNeutral()

◆ WithTargetOutput()

◆ WithUpdateFreqHz()

Member Data Documentation

◆ DifferentialPosition

◆ DifferentialSlot

◆ EnableFOC

◆ LimitForwardMotion

◆ LimitReverseMotion

◆ OverrideBrakeDurNeutral

◆ TargetOutput

◆ UpdateFreqHz