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. 13, 2006
Filed:
Nov. 22, 2004
Alberto Manzone, Alba, IT;
Paolo Santero, Orbassano, IT;
Riccardo Groppo, Roletto, IT;
C.R.F. Societa Consortile per Azioni, Orbassano, IT;
Abstract
A drive device for electrical injectors of a common rail fuel injection system of an internal combustion engine has a power circuit, in turn having a drive circuit, for each electrical injector, with a number of switches controlled selectively to regulate the current flowing through the electrical injector; and a control circuit for controlling operation of the power circuit; the control circuit having a number of control modules, each for selectively controlling the switches of a respective drive circuit, and for supplying a state signal (S) indicating the operating state of the control module; and a synchronization module for receiving and processing the state signals (S) to generate a common synchronization signal (S) for synchronizing the control modules; each control module synchronizing and coordinating, as a function of the synchronization signal (S), the drive actions imparted to the switches of the respective drive circuit, with the drive actions imparted by the other control modules to the corresponding switches.