Drive train arrangement for providing pressurized gas

A drive train arrangement for a heavy duty vehicle, comprising:

• an internal combustion engine with at least one cylinder having a combustion gas inlet for receiving combustion gas, and an exhaust outlet for output of pressurized exhaust gas from the cylinder;
• an exhaust gas recirculation pump having a pump inlet coupled to the exhaust outlet of the cylinder of the internal combustion engine, and a pump outlet coupled to a vehicle air tank and to the combustion gas inlet of the cylinder of the internal combustion engine;
• a first flow control arrangement arranged to control fluid flow from the pump outlet of the exhaust gas recirculation pump to the combustion gas inlet of the cylinder of the internal combustion engine, and to the vehicle air tank;
• and
• control circuitry arranged and configured to control operation of the first flow control arrangement,
• wherein the control circuitry is configured to:
• acquire a first indication indicative of an air pressure in the vehicle air tank;
• control, in response to the first indication indicating that the air pressure in the vehicle air tank is below a predefined first threshold pressure, the first flow control arrangement to allow fluid flow from the pump outlet of the exhaust gas recirculation pump to the vehicle air tank;
• acquire a second indication indicative of a pressure in a fluid conduit between the exhaust outlet of the cylinder of the internal combustion engine and the pump inlet;
• and
• control, in response to the second indication indicating that the pressure in the fluid conduit is higher than a predefined second threshold pressure, the exhaust gas recirculation pump to increase a gas flow rate through the exhaust gas recirculation pump.