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. 18, 2018
Filed:
Aug. 07, 2017
Zhen Ren, Troy, MI (US);
Songping Yu, Troy, MI (US);
Mohamed Othman, Troy, MI (US);
Ryan C Masters, Auburn Hills, MI (US);
Anandhi Koteeswaran, Farmington Hills, MI (US);
Marcio Quiles, Lake Orion, MI (US);
Zhen Ren, Troy, MI (US);
Songping Yu, Troy, MI (US);
Mohamed Othman, Troy, MI (US);
Ryan C Masters, Auburn Hills, MI (US);
Anandhi Koteeswaran, Farmington Hills, MI (US);
Marcio Quiles, Lake Orion, MI (US);
FCA US LLC, Auburn Hills, MI (US);
Abstract
Techniques for a mild hybrid vehicle utilize a control system for detecting a deceleration fuel shutoff (DFSO) event where fueling to an engine is disabled and in response to detecting the DFSO event: determining a desired pumping loss for the engine based on a parameter of a battery system, the desired pumping loss corresponding to a desired amount of electrical energy that a motor generator unit (MGU) of a belt-driven starter generator (BSG) system will generate to charge the battery system; commanding a throttle valve of the engine to an initial position determined based on the desired engine pumping loss and a speed of the engine; estimating an actual pumping loss of the engine based on an estimated airflow into the engine; and adjusting the position of the throttle valve based on a difference between the desired and actual engine pumping losses.