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, 2026
Filed:
Jan. 18, 2024
Allison Transmission, Inc., Indianapolis, IN (US);
Isaac Mock, Martinsville, IN (US);
Connor Claussen, Brownsburg, IN (US);
Jeremy Turner, Indianapolis, IN (US);
Allison Transmission, Inc., Indianapolis, IN (US);
Abstract
A modular transmission for an electric drive system that includes multiple individual drive modules configured to each provide two forward and two reverse gear ratios. The individual drive modules optionally include separate and distinct housings at least partially enclosing a planetary gearset. A shifting assembly is optionally included for each drive module that is operable to selectively couple the ring gear either to the carrier, the sun gear, or to ground to achieve two different gear ratios. Multiple drive modules may be coupled together using corresponding mount points of the housings thus allowing a transmission and drive system to be formulated quickly, or to be modified or repaired, without undue time and expense. An electric motor may be arranged upstream, or downstream of the multiple individual drive modules, or positioned between modules.