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EnterChargingSessionPauseOrStandby

CAPL Functions » Smart Charging » CCS (Communication Setup) » EV Functions » EnterChargingSessionPauseOrStandby Valid for: CANoe DE • CANoe4SW DE

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Function Syntax

MethodReturnValueType EnterChargingSessionPauseOrStandby ( )

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Description

Instructs the EV to enter the Charging Session Pause or Standby procedure. The selected option can be configured using the attribute PreferStandby.
  • The Standby procedure will be started by sending a Power Delivery Request with ChargeProgress Standby. Afterwards, the communication will continue in the respective Charge Loop message pair and can be exited any time using the ExitStandby function (EV) or sending a EVSENotification ExitStandby (EVSE).
  • The Pause procedure will stop the current V2G communication sessions, while also preparing to resume the session once the communication is established again. The session resume procedure can be triggered any time after the Session Stop Request with ChargingSession Pause has been accepted by the EVSE and the TCP connection was closed (see callback TransportLayerDisconnectInd). First call StopSimulation and then StartSimulation to start the communication again.
Note: The EVSE may choose to not allow entering the Standby procedure, by replying with a WARNING_StandbyNotAllowed ResponseCode in the Power Delivery Response message. This will cause the EV to continue charging, behaving as if the method was never called.

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Parameters

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Return Values

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MethodReturnValueType

All function calls (except for indications) will return a MethodReturnValueType indicating whether the call was successful or not. Possible values:
  • 0: OK
  • 1: InvalidArgument
  • 2: NoMatchingElementFound
  • 3: UnknownError

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Example

variables
{
  msTimer tRestartAfterPause;
  const long cRestartAfterPauseTimeout = 4000;
  int isEVTriggered = 1;
}

// To be called during ChargeLoop
on key 'x'
{
  if(isEVTriggered == 1)
  {
    // Trigger 'Pause' or 'Standby' via EV
    EV.ISO20.EnterChargingSessionPauseOrStandby.Call();
  }
  else
  {
    // Trigger 'Pause' or 'Standby' via EVSE
    EVSE.SetNextEVSENotification.Call(_CCS::DataTypes::EVSENotificationType::Pause);
  }
}

// To be called during 'Standby' procedure
on key 'c'
{
  if(isEVTriggered == 1)
  {
    // Exit 'Standby' via EV
    EV.ISO20.ExitStandby.Call();
  }
  else
  {
    // Exit 'Standby' via EVSE
    EVSE.SetNextEVSENotification.Call(_CCS::DataTypes::EVSENotificationType::ExitStandby);
  }
}

on fct_returning EV.TransportLayerDisconnectInd
{
  // Execute 'Pause' logic, if it was requested and accepted
  if($EV.ISO20.SessionStop_Request.ChargingSession == _CCS::DataTypes::parISO20ChargingSessionType::Pause
      && $EV.ISO20.SessionStop_Response.ResponseCode == _CCS::DataTypes::ISO20ResponseCodeType::OK)
  {
    setTimer(tRestartAfterPause, cRestartAfterPauseTimeout);
    EV.StopSimulation.Call();
    EVSE.StopSimulation.Call();
  }
}

on timer tRestartAfterPause
{
// Skip SLAC after pause
setAttribute(CCS::Simulation::EV, CCSBinding::EV::SLACCommunication, CCSBinding::Disabled);
  // Restart communication
  EV.StartSimulation.Call();
  EVSE.StartSimulation.Call();
}
ExitStandby