Invention Application
US20040051421A1 System for controlling a piezoelectric actuator, in particular for the fuel injectors of a diesel engine
有权
用于控制压电致动器的系统，特别是用于柴油发动机的燃料喷射器
- Patent Title: System for controlling a piezoelectric actuator, in particular for the fuel injectors of a diesel engine
- Patent Title (中): 用于控制压电致动器的系统，特别是用于柴油发动机的燃料喷射器
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Application No.: US10619482Application Date: 2003-07-16
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Publication No.: US20040051421A1Publication Date: 2004-03-18
- Inventor: Mario Montuschi , Eugenio Faggioli , Paolo Reggio
- Applicant: C.R.F. SOCIETA CONSORTILE PER AZIONI
- Applicant Address: null
- Assignee: C.R.F. SOCIETA CONSORTILE PER AZIONI
- Current Assignee: C.R.F. SOCIETA CONSORTILE PER AZIONI
- Current Assignee Address: null
- Priority: ITT02002A000618 20020716
- Main IPC: H01L041/09
- IPC: H01L041/09
Abstract:
The system makes it possible to control at least one piezoelectric actuator having a capacitive impedance and includes a source of voltage, a control circuit branch in parallel with the source, in which the actuator is connected in series to two electronic switches each having a respective parallel diode; an energy accumulating inductor with one terminal connected between the said switches and the other connected to the voltage source; and an electronic unit operable to control the said controlled switches according to predetermined modes of operation.
Public/Granted literature
- US06943480B2 System for controlling a piezoelectric actuator, in particular for the fuel injectors of a diesel engine Public/Granted day:2005-09-13
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