Method for operating an electric air compressor assembly
AssigneeVolvo Truck Corporation
InventorsNathan Prod'homme, Hugo Bebon
Life of this patent
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Abstract
A method for operating an electric air compressor assembly. The assembly includes an electric motor and a compressor which is mechanically coupled to the electric motor and which is capable of providing compressed air to a tank The method comprises monitoring the temperature of at least one component of the electric air compressor assembly and controlling the motor speed as a function of said temperature running the motor at a first speed S1, which results in the temperature increasing; when the temperature reaches a temperature threshold, which is lower than a maximum admissible temperature, running the motor at a second speed S2>S1 until a predetermined desired pressure in the tank is reached.
Claims11
A method for operating an electric air compressor assembly, said assembly including an electric motor and a compressor which is mechanically coupled to the electric motor and which is configured to provide compressed air to a tank, the method comprising:
- monitoring the temperature of at least one component of the electric air compressor assembly and controlling the motor speed as a function of said temperature;
- running the motor at a first speed S1, which results in the temperature increasing;
- when the temperature reaches a temperature threshold T1, which is lower than a maximum admissible temperature Tmax, running the motor at a second speed S2>S1 until a predetermined desired pressure in the tank is reached.
An arrangement comprising:
- a tank;
- an electric air compressor assembly including an electric motor and a compressor which is mechanically coupled to the electric motor and which is configured to provide compressed air to the tank;
- a temperature sensor for sensing the temperature of at least one component of the electric air compressor assembly;
- a pressure sensor for sensing the pressure in the tank;
- a controller configured to control the motor speed as a function of said temperature by:
- monitoring the temperature of the at least one component of the electric air compressor assembly and controlling the motor speed as a function of the temperature;
- running the motor at a first speed S1, which results in the temperature increasing;
- when the temperature reaches a temperature threshold T1, which is lower than a maximum admissible temperature Tmax, running the motor at a second speed S2>S1 until a predetermined desired pressure in the tank is reached.
Dependencies are inferred from the claim text.