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:
Mar. 16, 2021
Filed:
Dec. 11, 2019
GM Global Technology Operations Llc, Detroit, MI (US);
Anne M. Dailly, West Bloomfield, MI (US);
Richard H. Krentz, Bloomfield Hills, MI (US);
Mei Cai, Bloomfield Hills, MI (US);
Mahmoud Abd Elhamid, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A system for pump assist to maximize fuel consumption in a natural gas powertrain includes a fuel delivery system including a natural gas storage tank supplying a first natural gas flow, a pressure sensor disposed to provide data regarding a natural gas pressure within the storage tank, and a natural gas pump operable to selectively boost the first natural gas flow to create a second natural gas flow with increased pressure. The system further includes an engine operable to utilize one of the natural gas flows to provide an output torque and including a fuel injector and a computerized fuel system controller programmed to monitor the data regarding the natural gas pressure within the storage tank, compare the data regarding the natural gas pressure within the storage tank to a threshold cut-off pressure for the fuel injector, and command activation of the natural gas pump based upon the comparing.