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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.:

US 9182034 B1

PDFFull Text
Date of Patent:
Nov. 10, 2015

Filed:

Mar. 19, 2013

Modulation control system and method for a hybrid transmission

Applicant:

Allison Transmission, Inc., Indianapolis, IN (US);

Inventors:

Charles F. Long, Pittsboro, IN (US);

Charles T. Taylor, Indianapolis, IN (US);

Assignee:

Allison Transmission, Inc., Indianapolis, IN (US);

Attorney:

Woodard Emhardt Moriarty McNett & Henry LLP

Primary Examiner:

Tisha Lewis

Int. Cl.
CPC ...
F16H 61/00 (2006.01); B60K 6/48 (2007.10); B60K 6/12 (2006.01); B60K 6/20 (2007.10); F16H 61/02 (2006.01); F16D 48/02 (2006.01);
U.S. Cl.
CPC ...
F16H 61/0031 (2013.01); B60K 6/12 (2013.01); B60K 6/20 (2013.01); B60K 6/48 (2013.01); F16D 25/14 (2013.01); F16H 61/0021 (2013.01); F16H 61/0206 (2013.01); B60Y 2200/92 (2013.01); Y02T 10/6221 (2013.01); Y10S 903/902 (2013.01); Y10S 903/903 (2013.01); Y10T 137/8593 (2015.04); Y10T 137/85986 (2015.04); Y10T 137/86131 (2015.04);
Abstract

A hydraulic system includes a main modulation control scheme which relies in part on the use of a VBS solenoid and the multiplexing of that solenoid. The hydraulic system is associated with a hybrid module and by controlling the main pressure at a reduced level, the fuel economy and reliability of that hybrid module are improved. The system pressure is controlled by the multiplexed VBS solenoid in order to maintain adequate clutch pressure based on torque requirements. The overall system cost is reduced by the multiplexing of valves and solenoids.

Find Patent Forward Citations

Long, Charles. (2015). Modulation control system and method for a hybrid transmission (U.S. Patent No. 9182034). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9182034

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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