public override void Drive(FlightCtrlState s) { UpdatePID(); //SpeedHold (set AccelerationTarget automatically to hold speed) if (SpeedHoldEnabled) { double spd = vesselState.speedSurface; cur_acc = (spd - _spd) / Time.fixedDeltaTime; _spd = spd; RealAccelerationTarget = (SpeedTarget - spd) / 4; a_err = (RealAccelerationTarget - cur_acc); AccelerationPIDController.intAccum = MuUtils.Clamp(AccelerationPIDController.intAccum, -1 / AccKi, 1 / AccKi); double t_act = AccelerationPIDController.Compute(a_err); if (!double.IsNaN(t_act)) { core.thrust.targetThrottle = (float)MuUtils.Clamp(t_act, 0, 1); } else { core.thrust.targetThrottle = 0.0f; AccelerationPIDController.Reset(); } } //AltitudeHold (set VertSpeed automatically to hold altitude) if (AltitudeHoldEnabled) { RealVertSpeedTarget = convertAltitudeToVerticalSpeed(AltitudeTarget - vesselState.altitudeASL); RealVertSpeedTarget = UtilMath.Clamp(RealVertSpeedTarget, -VertSpeedTarget, VertSpeedTarget); } else { RealVertSpeedTarget = VertSpeedTarget; } pitch_err = roll_err = yaw_err = 0; pitch_act = roll_act = yaw_act = 0; //VertSpeedHold if (VertSpeedHoldEnabled) { // NOTE: 60-to-1 rule: // deltaAltitude = 2 * PI * r * deltaPitch / 360 // Vvertical = 2 * PI * TAS * deltaPitch / 360 // deltaPitch = Vvertical / Vhorizontal * 180 / PI double deltaVertSpeed = RealVertSpeedTarget - vesselState.speedVertical; double adjustment = 180 / vesselState.speedSurface * deltaVertSpeed / Math.PI; RealPitchTarget = vesselState.vesselPitch + adjustment; RealPitchTarget = UtilMath.Clamp(RealPitchTarget, -PitchDownLimit, PitchUpLimit); pitch_err = MuUtils.ClampDegrees180(RealPitchTarget - vesselState.vesselPitch); PitchPIDController.intAccum = UtilMath.Clamp(PitchPIDController.intAccum, -100 / PitKi, 100 / PitKi); pitch_act = PitchPIDController.Compute(pitch_err) / 100; //Debug.Log (p_act); if (double.IsNaN(pitch_act)) { PitchPIDController.Reset(); } else { s.pitch = Mathf.Clamp((float)pitch_act, -1, 1); } } //HeadingHold double curFlightPath = vesselState.HeadingFromDirection(vesselState.forward); // NOTE: we can not use vesselState.vesselHeading here because it interpolates headings internally // i.e. turning from 1° to 359° will end up as (1+359)/2 = 180° // see class MovingAverage for more details curr_yaw = vesselState.currentHeading - curFlightPath; if (HeadingHoldEnabled) { double toturn = MuUtils.ClampDegrees180(HeadingTarget - curFlightPath); if (Math.Abs(toturn) < 0.2) { // yaw for small adjustments RealYawTarget = MuUtils.Clamp(toturn * 2, -YawLimit, YawLimit); RealRollTarget = 0; } else { // roll for large adjustments RealYawTarget = 0; RealRollTarget = MuUtils.Clamp(toturn * 2, -RollLimit, RollLimit); } } else { RealRollTarget = RollTarget; RealYawTarget = 0; } if (RollHoldEnabled) { RealRollTarget = UtilMath.Clamp(RealRollTarget, -BankAngle, BankAngle); RealRollTarget = UtilMath.Clamp(RealRollTarget, -RollLimit, RollLimit); roll_err = MuUtils.ClampDegrees180(RealRollTarget - -vesselState.currentRoll); RollPIDController.intAccum = MuUtils.Clamp(RollPIDController.intAccum, -100 / RolKi, 100 / RolKi); roll_act = RollPIDController.Compute(roll_err) / 100; if (double.IsNaN(roll_act)) { RollPIDController.Reset(); } else { s.roll = Mathf.Clamp((float)roll_act, -1, 1); } } if (HeadingHoldEnabled) { RealYawTarget = UtilMath.Clamp(RealYawTarget, -YawLimit, YawLimit); yaw_err = MuUtils.ClampDegrees180(RealYawTarget - curr_yaw); YawPIDController.intAccum = MuUtils.Clamp(YawPIDController.intAccum, -100 / YawKi, 100 / YawKi); yaw_act = YawPIDController.Compute(yaw_err) / 100; if (double.IsNaN(yaw_act)) { YawPIDController.Reset(); } else { s.yaw = Mathf.Clamp((float)yaw_act, -1, 1); } } }
public override void Drive(FlightCtrlState s) { UpdatePID(); //SpeedHold (set AccelerationTarget automatically to hold speed) if (SpeedHoldEnabled) { double spd = vesselState.speedSurface; cur_acc = (spd - _spd) / Time.fixedDeltaTime; _spd = spd; RealAccelerationTarget = (SpeedTarget - spd) / 4; a_err = (RealAccelerationTarget - cur_acc); AccelerationPIDController.intAccum = MuUtils.Clamp(AccelerationPIDController.intAccum, -1 / AccKi, 1 / AccKi); double t_act = AccelerationPIDController.Compute(a_err); if (!double.IsNaN(t_act)) { core.thrust.targetThrottle = (float)MuUtils.Clamp(t_act, 0, 1); } else { core.thrust.targetThrottle = 0.0f; AccelerationPIDController.Reset(); } } //AltitudeHold (set VertSpeed automatically to hold altitude) if (AltitudeHoldEnabled) { RealVertSpeedTarget = MuUtils.Clamp(fixVertSpeed(AltitudeTarget - vesselState.altitudeASL), -VertSpeedMax, VertSpeedMax); } else { RealVertSpeedTarget = VertSpeedTarget; } //VertSpeedHold if (VertSpeedHoldEnabled) { double vertspd = vesselState.speedVertical; v_err = RealVertSpeedTarget - vertspd; VertSpeedPIDController.intAccum = MuUtils.Clamp(VertSpeedPIDController.intAccum, -1 / (VerKi * VerPIDScale), 1 / (VerKi * VerPIDScale)); double p_act = VertSpeedPIDController.Compute(v_err); //Log.dbg(p_act); if (double.IsNaN(p_act)) { VertSpeedPIDController.Reset(); } else { s.pitch = Mathf.Clamp((float)p_act, -1, 1); } } //HeadingHold double curHeading = vesselState.HeadingFromDirection(vesselState.forward); if (HeadingHoldEnabled) { double toturn = MuUtils.ClampDegrees180(HeadingTarget - curHeading); RealRollTarget = MuUtils.Clamp(toturn * 2, -RollMax, RollMax); } else { RealRollTarget = RollTarget; } if (RollHoldEnabled) { double roll_err = MuUtils.ClampDegrees180(vesselState.vesselRoll + RealRollTarget); RollPIDController.intAccum = MuUtils.Clamp(RollPIDController.intAccum, -100 / AccKi, 100 / AccKi); double roll_act = RollPIDController.Compute(roll_err); s.roll = Mathf.Clamp((float)roll_act / 100, -1, 1); } if (HeadingHoldEnabled) { double yaw_err = MuUtils.ClampDegrees180(HeadingTarget - curHeading); YawPIDController.intAccum = MuUtils.Clamp(YawPIDController.intAccum, -YawLimit * 100 / AccKi, YawLimit * 100 / AccKi); double yaw_act = YawPIDController.Compute(yaw_err); s.yaw = (float)MuUtils.Clamp(yaw_act / 100, -YawLimit, +YawLimit); } }