Thermal management control unit J1024
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The heart of the thermal management of the Audi e-tron GT (type F8) is thermal management control unit J1024. Its main task is
to use the thermal energy present or required as efficiently as possible or to make it available. This task can be achieved by effec-
tively regulating and controlling the refrigerant and coolant circuits and using the heat pump function. The coolant circuits com-
prise the heating circuit, which is required to heat the vehicle interior, the coolant circuit for the high-voltage battery, which is used
to heat or cool the corresponding components, and the coolant circuit for the electric powertrain which regulates the temperature
of the connected components.
Thermal management control unit J1024 decides whether the coolant circuits should operate independently or in combination on
the basis of the input information and the requests from individual components. There are a large number (approx. 300) of
switches to use the coolant circuits efficiently and effectively.
The thermal management control unit J1024 is integrated in the vehicle's network via the hybrid CAN, which it uses to exchange
information with other control units and systems.
Note
Further information can be found in the current flow diagram for the vehicle.
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