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:
Oct. 06, 2020
Filed:
Jun. 26, 2018
Applicant:
Ford Global Technologies, Llc, Dearborn, MI (US);
Inventors:
Fabian Gadau, Ann Arbor, MI (US);
Christopher Glugla, Macomb, MI (US);
Assignee:
Ford Global Technologies, LLC, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16D 49/12 (2006.01); F02D 15/02 (2006.01); B60W 10/06 (2006.01); B60W 10/18 (2012.01); B60W 10/10 (2012.01); B60W 30/182 (2020.01); F02B 75/04 (2006.01); F16D 121/06 (2012.01);
U.S. Cl.
CPC ...
F02D 15/02 (2013.01); B60W 10/06 (2013.01); B60W 10/10 (2013.01); B60W 10/18 (2013.01); B60W 30/182 (2013.01); F16D 49/12 (2013.01); B60W 2510/06 (2013.01); B60W 2710/06 (2013.01); B60W 2710/1005 (2013.01); B60W 2710/18 (2013.01); F02B 75/045 (2013.01); F02D 2200/101 (2013.01); F02D 2200/1002 (2013.01); F02D 2200/50 (2013.01); F02D 2700/03 (2013.01); F16D 2121/06 (2013.01);
Abstract
Methods and systems are provided for maintaining a compression ratio of an engine via a brake and while disabling an electric current applied to an actuator of the associated variable compression ratio mechanism. A braking force applied via the brake on a compression ratio control shaft is varied before and during a compression ratio transition to move the control shaft at a desired velocity. Brake torque application is coordinated with motor torque from a VCR actuator and engine torque applied on the control shaft to enable a smooth CR transition.