US 12,345,269 B2
Method for operating an electric air compressor assembly
Nathan Prod'homme, Lyons (FR); and Hugo Bebon, Vaulx en Velin (FR)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Appl. No. 17/760,067
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
PCT Filed Feb. 5, 2020, PCT No. PCT/EP2020/052884
§ 371(c)(1), (2) Date Aug. 3, 2022,
PCT Pub. No. WO2021/155923, PCT Pub. Date Aug. 12, 2021.
Prior Publication US 2023/0063275 A1, Mar. 2, 2023
Int. Cl. F04D 27/00 (2006.01); B60T 13/26 (2006.01)
CPC F04D 27/006 (2013.01) [B60T 13/268 (2013.01)] 11 Claims
OG exemplary drawing
 
1. 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.