About Constraints

You must take into account the following constraints when creating your power distribution diagrams.

This page discusses:

Electrical Devices

Constraints on electrical devices are the following:

Electrical Devices Description and Constraints

Battery

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • The device must have only one Out port
  • All ports must be In or Out ports
  • The property Is current source does not need to be set to True for the Out port

Box

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • All ports must be In or Out ports
  • Device can contain subsystems

Fuse

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • The device must have only one In port and only one Out port
  • All ports must be In or Out ports
  • The port properties are not taken into account

Ground point

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • All ports must be In or Out ports

Other

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • All ports must be In or Out ports
  • The currents properties must be specified for these In ports
  • The device must have an Out port that goes directly to a ground
  • The device can have many In ports
  • The device can have many Out ports that supply currents to other components
  • The property Is current source needs to be set to True for these Out ports

PowerModule

  • The connector types must be created with the subtechnology defined as Power
  • All ports must be In or Out ports
  • The currents properties must be specified for these In ports
  • The device must have an Out port that goes directly to a ground
  • The device can have many In ports
  • The device can have many Out ports that supply currents to other components
  • Device can contain subsystems

Relay

  • Connector types for the control ports should not be created with the subtechnology defined as Power
  • Connector types for the other ports must be created with the subtechnology defined as Power
  • The device type must be specified
  • All ports must be In or Out ports
  • Elementary relay must have only one In port
    • Single-throw relay must have only one Out port
    • Double-throw relay (that is switch) must have only two Out port
  • Port properties are not taken into account

Note: Multicontact relays can be modeled by composing several elementary relays in an encompassing component.

Shunt

  • The connector types must be created with the subtechnology defined as Power
  • The device type must be specified
  • All ports must be In or Out ports

ECUs

Constraints on ECUs are the following:

ECUs Description and Constraints

ECUs

  • All ports must be In or Out ports
  • The device can have many In ports
  • The currents properties must be specified for these In ports
  • The device can have many Out ports that supply currents to other components
  • The property Is current source needs to be set to True for these Out ports (for example, this is used when an ECU controls the power supply of another ECU)
  • The device must have an Out port that goes directly to a ground
  • Device can contain subsystems