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US 12,258,900 B2Granted
Methods and systems for an electric turbocharger
AssigneeTransportation IP Holdings, LLC
InventorsLouis Kobielski, Christopher Homison, Adam Felton
Life of this patent
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Abstract
Methods and systems are provided for an electric turbocharger (e-turbo). In one example, a method may include monitoring an e-turbo parameter or an engine parameter, comparing the monitored e-turbo or engine parameter to a determined threshold value for the e-turbo or engine parameter, and signaling a status of the e-turbo in response to the monitored e-turbo or engine parameter differing from the determined threshold value by at least a threshold amount.
Claims17
A method, comprising:
- monitoring an electric turbocharger (e-turbo) parameter or an engine parameter associated with an e-turbo, while a motor of the e-turbo operates at a commanded speed, wherein the monitored e-turbo parameter or the engine parameter comprises a compressor outlet pressure monitored at an outlet of a compressor of the e-turbo while the motor is operated at the commanded speed;
- comparing the monitored e-turbo parameter or the engine parameter to a determined threshold value for the e-turbo parameter or the engine parameter;
- and
- signaling a status of the e-turbo in response to the monitored e-turbo parameter or the engine parameter differing from the determined threshold value by at least a threshold amount.
1 more element
A method comprising:
- obtaining an electrical current signal from a motor of an electric turbocharger (e-turbo), during operation of an engine;
- transforming the obtained electrical current signal to a frequency domain to form a frequency signal;
- identifying a frequency component of interest of the e-turbo, based on the frequency signal;
- comparing an amplitude of the frequency component of interest to a threshold amplitude;
- signaling a status of the e-turbo based on a change in performance of the e-turbo in response to the amplitude differing from the threshold amplitude by at least a threshold amount.
2 more elements
A system, comprising:
- a controller configured to:
- obtain an electric turbocharger (e-turbo) parameter of an e-turbo or an engine parameter of an engine configured to operably couple to the e-turbo, wherein the e-turbo parameter or the engine parameter is obtained while a turbine inlet of the e-turbo is disconnected from the engine and/or a compressor outlet of a compressor is disconnected from the engine;
- compare the e-turbo parameter or the engine parameter to a determined threshold value for the e-turbo parameter or the engine parameter;
- and
- signal a status of the e-turbo in response to the e-turbo parameter or the engine parameter differing from the determined threshold value by at least a threshold amount.
2 more elements
Dependencies are inferred from the claim text.