The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 2020
Filed:
Jun. 26, 2018
Ethan E Bayer, Lake Orion, MI (US);
David R Pedro, Windsor, CA;
David a Lawrence, Lake Orion, MI (US);
Saikiran Chikine, Hackensack, NJ (US);
Ethan E Bayer, Lake Orion, MI (US);
David R Pedro, Windsor, CA;
David A Lawrence, Lake Orion, MI (US);
Saikiran Chikine, Hackensack, NJ (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
A control system and method for an engine including a turbocharger without a surge valve involve utilizing one or more pressure sensors configured to measure air pressure in an intake system of the engine, the intake system comprising a compressor of the turbocharger and a throttle valve downstream from the compressor, and a controller configured to control the engine to avoid surge at the compressor and eliminate a need for the surge valve by determining a desired position for the throttle valve based on a driver requested engine torque, determining a minimum mass flow through the compressor that avoids surge based on the measured air pressure in the intake system and a predetermined compressor map, and commanding the throttle valve to a target position to maintain at least the minimum compressor mass flow, wherein the target position is greater than the desired position, thereby avoiding surge at the compressor.