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:
Jul. 14, 2015
Filed:
Nov. 14, 2012
Caterpillar Inc., Peoria, IL (US);
Aaron Y. Ho, Naperville, IL (US);
Mark D. Anderson, Aurora, IL (US);
Michael D. Mitchell, Aurora, IL (US);
Cynthia A. Nastav, Oswego, IL (US);
Ming Zhang, Naperville, IL (US);
Derek J. Light, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A machine having a powertrain including an engine operably connected to a torque converter and a transmission. The machine includes a control system receive an activation signal indicative of an automatic mode operation of the machine and command the torque converter to remain in a direct-drive mode while the transmission shifts from a first gear ratio to a second gear ratio. The control system also limits engine speed below a first engine speed limit when a gear ratio setting of the transmission is indicative of the second gear ratio.