Abstract: An automotive electric oil pump includes a static pump housing, an electric drive motor, a rotatable pump wheel, and a control module. The static pump housing defines a pumping chamber and a motor chamber which are fluidically connected to each other. The electric drive motor is arranged within the motor chamber. The electric drive motor has a motor stator and a motor rotor. The motor stator has stator coils. The rotatable pump wheel pumps oil through the pumping chamber, wherein a partial volume of the oil within the pumping chamber thereby flows through the motor chamber. The control module energizes the stator coils in a cold-start phase if a temperature of the oil within the motor chamber is below a defined temperature value and inhibits a rotation of the motor rotor. The motor stator directly contacts the oil.

Abstract: An automotive electric oil pump includes a static pump housing, an electric drive motor, a rotatable pump wheel, and a control module. The static pump housing defines a pumping chamber and a motor chamber which are fluidically connected to each other. The electric drive motor is arranged within the motor chamber. The electric drive motor has a motor stator and a motor rotor. The motor stator has stator coils. The rotatable pump wheel pumps oil through the pumping chamber, wherein a partial volume of the oil within the pumping chamber thereby flows through the motor chamber. The control module energizes the stator coils in a cold-start phase if a temperature of the oil within the motor chamber is below a defined temperature value and inhibits a rotation of the motor rotor. The motor stator directly contacts the oil.