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:
Nov. 16, 2010
Filed:
Nov. 13, 2007
Randy N Peterson, Peoria, IL (US);
Todd Lawrence Baker, Brimfield, IL (US);
Michael Todd Verkuilen, Metamora, IL (US);
Aleksandar M Egelja, Naperville, IL (US);
Tetsuya Yoshino, Akashi, JP;
Randy N Peterson, Peoria, IL (US);
Todd Lawrence Baker, Brimfield, IL (US);
Michael Todd Verkuilen, Metamora, IL (US);
Aleksandar M Egelja, Naperville, IL (US);
Tetsuya Yoshino, Akashi, JP;
Caterpillar Inc, Peoria, IL (US);
Caterpillar Japan Ltd, Tokyo, JP;
Abstract
A method of controlling an electro-hydraulic system having an engine driving a variable displacement pump, a hydraulic valve and a hydraulic actuator in order to achieve more efficient engine operation is disclosed. The pressures in the electro-hydraulic system are monitored and commands are received indicating the desired movement of the hydraulic actuator. Based on the pressure and the commands, the operation being performed by the machine is determined and the engine is set to an efficient setting for the particular segment of machine operation.