Unified vehicle pump

A unified vehicle pump comprising:

• a first gas compressor configured for compressing a first gas and providing the compressed first gas to a first system of an electric vehicle, wherein the first gas compressor includes a shaft and an electric motor that is electrically connected to a battery of the electric vehicle to receive electrical power from the battery and is configured to convert the received electrical power into rotational motion of the shaft;
• a second gas compressor configured for compressing a second gas and providing the compressed second gas to a second system of the electric vehicle;
• and
• a coupling configured for mechanically coupling power from the electric motor to the second gas compressor.

A method comprising:

• operating an electric motor of an electric vehicle in a first operating mode to drive a first gas compressor, the electric motor being integrated with the first gas compressor;
• mechanically coupling a shaft driven by the electric motor to a second gas compressor;
• and
• operating the electric motor in a second operating mode to drive the second gas compressor.