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:
Jun. 24, 2008
Filed:
Jan. 12, 2005
Vaibhav H. Shah, Peoria, IL (US);
Vaibhav H. Shah, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A method of performing a directional shifting event in a hydrostatic drive work machine, and a hydrostatic drive work machine is provided. The method includes the step of adjusting a pump displacement of a variable displacement pump coupled with an engine and a hydraulic motor of the work machine, at a rate based at least in part on one or both of a predetermined acceleration limit and a predetermined jerk limit of the work machine. The work machine includes an electronic control module having a computer readable medium with a directional shifting control algorithm recorded thereon. The control algorithm is operable to adjust a pump displacement in a hydrostatic drive of the work machine at a rate based at least in part on one or both of the predetermined acceleration limit or jerk limit of the work machine.