US 12,454,906 B2
Electric boost device control for turbocharger
Michael Robert Uchanski, La Tour de Peilz (CH); Malay Maniar, Boeblingen (DE); Andrew Love, Marina Del Rey, CA (US); Daniele Zecchetti, Maranello (IT); and Jungsik Yim, Torrance, CA (US)
Assigned to Garrett Transportation I Inc., Torrance, CA (US)
Filed by Garrett Transportation I Inc., Torrance, CA (US)
Filed on May 14, 2021, as Appl. No. 17/321,010.
Prior Publication US 2022/0364499 A1, Nov. 17, 2022
Int. Cl. F02B 37/04 (2006.01); F02B 37/12 (2006.01); F02D 23/00 (2006.01)
CPC F02B 37/04 (2013.01) [F02D 23/00 (2013.01); F02B 2037/122 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
an engine having an air input and an exhaust output;
a turbocharger having a compressor coupled to the air input, a turbine coupled to the exhaust output, and an electric motor, wherein the compressor is configured to receive force selectively from either or both of the turbine and the electric motor, the electric motor having an ETurbo controller; and
an engine control unit (ECU) for controlling operation of the internal combustion engine and the turbocharger;
wherein:
the ECU is configured to determine and provide a torque control signal and a speed control signal to the ETurbo controller to enable the ETurbo controller to manage operation of the electric motor; and
the ETurbo controller is configured to use the torque control signal to manage operation of the electric motor without allowing compressor speed to exceed a maximum speed determined by the speed control signal.