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Code Issues Releases Activity

OP-1022 Reset altitude and velocity when stick goes to deadband

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This commit is contained in:
Alessio Morale 2013-07-19 07:57:24 +00:00
parent 005a68826d
commit e2a7c6cb25
1 changed files with 10 additions and 11 deletions
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19
flight/modules/ManualControl/manualcontrol.c
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@ -827,10 +827,7 @@ static void altitudeHoldDesired(ManualControlCommandData *cmd, bool changed)
uint8_t throttleExp;
static uint8_t flightMode;
static portTickType lastSysTimeAH;
static bool zeroed = false;
portTickType thisSysTime;
float dT;
FlightStatusFlightModeGet(&flightMode);
@ -848,9 +845,9 @@ static void altitudeHoldDesired(ManualControlCommandData *cmd, bool changed)
StabilizationSettingsData stabSettings;
StabilizationSettingsGet(&stabSettings);
thisSysTime = xTaskGetTickCount();
dT = ((thisSysTime == lastSysTimeAH) ? 0.001f : (thisSysTime - lastSysTimeAH) * portTICK_RATE_MS * 0.001f);
lastSysTimeAH = thisSysTime;
AltHoldSmoothedData altHold;
AltHoldSmoothedGet(&altHold);
altitudeHoldDesiredData.Roll = cmd->Roll * stabSettings.RollMax;
altitudeHoldDesiredData.Pitch = cmd->Pitch * stabSettings.PitchMax;
@ -858,8 +855,6 @@ static void altitudeHoldDesired(ManualControlCommandData *cmd, bool changed)
if (changed) {
// After not being in this mode for a while init at current height
AltHoldSmoothedData altHold;
AltHoldSmoothedGet(&altHold);
altitudeHoldDesiredData.Velocity = 0;
altitudeHoldDesiredData.Altitude = altHold.Altitude;
zeroed = false;
@ -867,14 +862,18 @@ static void altitudeHoldDesired(ManualControlCommandData *cmd, bool changed)
// being the two band symmetrical I can divide by DEADBAND_LOW to scale it to a value betweeon 0 and 1
// then apply an "exp" f(x,k) = (k*x*x*x + (255-k)*x) / 255
altitudeHoldDesiredData.Velocity = (throttleExp * powf((cmd->Throttle - DEADBAND_HIGH) / (DEADBAND_LOW), 3) + (255 - throttleExp) * (cmd->Throttle - DEADBAND_HIGH) / DEADBAND_LOW) / 255 * throttleRate;
altitudeHoldDesiredData.Altitude += altitudeHoldDesiredData.Velocity * dT;
altitudeHoldDesiredData.Altitude = altHold.Altitude;
} else if (cmd->Throttle < DEADBAND_LOW && zeroed) {
altitudeHoldDesiredData.Velocity = -(throttleExp * powf((DEADBAND_LOW - (cmd->Throttle < 0 ? 0 : cmd->Throttle)) / DEADBAND_LOW, 3) + (255 - throttleExp) * (DEADBAND_LOW - cmd->Throttle) / DEADBAND_LOW) / 255 * throttleRate;
altitudeHoldDesiredData.Altitude += altitudeHoldDesiredData.Velocity * dT;
altitudeHoldDesiredData.Altitude = altHold.Altitude;
} else if (cmd->Throttle >= DEADBAND_LOW && cmd->Throttle <= DEADBAND_HIGH && (throttleRate != 0)) {
// Require the stick to enter the dead band before they can move height
// Vario is not "engaged" when throttleRate == 0
if(fabsf(altitudeHoldDesiredData.Velocity)> 1e-3f)
{;
altitudeHoldDesiredData.Velocity = 0;
altitudeHoldDesiredData.Altitude = altHold.Altitude;
}
zeroed = true;
}