MotionMagicVelocityTorqueCurrentFOC Constructor
Requests Motion Magic® to target a final velocity using a motion profile.
This allows smooth transitions between velocity set points. Users can
optionally provide a torque feedforward.
Motion Magic® Velocity produces a motion profile in real-time while
attempting to honor the specified Acceleration and Jerk value. If the
specified acceleration is zero, the Acceleration under Motion Magic®
configuration parameter is used instead. This allows for runtime adjustment
of acceleration for advanced users. Jerk is also specified in the Motion
Magic® persistent configuration values. If Jerk is set to zero, Motion
Magic® will produce a trapezoidal acceleration profile. Target velocity can
also be changed on-the-fly and Motion Magic® will do its best to adjust the
profile. This control mode is based on torque current, so relevant
closed-loop gains will use Amperes for the numerator.
Velocity Target velocity to drive toward in rotations per second. This
can be changed on-the fly.
Acceleration This is the absolute Acceleration to use generating the
profile. If this parameter is zero, the Acceleration
persistent configuration parameter is used instead.
Acceleration is in rotations per second squared. If
nonzero, the signage does not matter as the absolute value
is used.
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.
FeedForward Feedforward to apply in torque current in Amperes. User can
use motor's kT to scale Newton-meter to Amperes.
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].
OverrideCoastDurNeutral Set to true to coast 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 0A (zero torque).
Namespace: CTRE.Phoenix6.ControlsAssembly: Phoenix6 (in Phoenix6.dll) Version: 1.0.0
public MotionMagicVelocityTorqueCurrentFOC(
double Velocity,
double Acceleration,
bool EnableFOC,
double FeedForward,
int Slot,
bool OverrideCoastDurNeutral
)
new :
Velocity : float *
Acceleration : float *
EnableFOC : bool *
FeedForward : float *
Slot : int *
OverrideCoastDurNeutral : bool -> MotionMagicVelocityTorqueCurrentFOC
Parameters
- Velocity Double
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- Acceleration Double
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- EnableFOC Boolean
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- FeedForward Double
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- Slot Int32
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- OverrideCoastDurNeutral Boolean
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