METHOD AND APPARATUS FOR TIMED MEASUREMENT OF VOLTAGE ACROSS DEVICE IN CHARGING CIRCUIT OF AT LEAST ONE PIEZOELECTRIC ELEMENT

Title:

METHOD AND APPARATUS FOR TIMED MEASUREMENT OF VOLTAGE ACROSS DEVICE IN CHARGING CIRCUIT OF AT LEAST ONE PIEZOELECTRIC ELEMENT

Document Type and Number:

Japanese Patent JP2002034270

Kind Code:

A

Abstract:

To easily attain the response to the injection operation of the predeter mined actuator of a value to be accumulated in a buffer.

For the timed measurement of a voltage across a device in a charging circuit of the piezoelectric elements 10, 20, 30, 40, 50, 60 used in a fuel injection system, a voltage applied on the device is synchronized with the injection phenomenon of at least one piezoelectric actuator and such voltage is detected and read at the predetermined timing. Here, the device may be a piezoelectric element or a buffer capacitor.

More Like This:

WO/2002/018779	INJECTION VALVE FOR THE INJECTION OF FUEL IN AN INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROL OF THE OPENING AND CLOSING PROCESS OF A NOZZLE NEEDLE IN AN INJECTION VALVE
JP3249948	PHASE SHIFT MASK BLANK AND PHASE SHIFT MASK
WO/2012/157001	BI-FUEL INJECTOR WITH A DOUBLE SEALING NOZZLE AND TWO INLET FITTINGS FOR TWO SEPARATE FEEDING LINES

Inventors:

HEDENETZ ANDREAS
BARNICKEL KAI
NEWALD JOSEF
SCHULZ UDO

Application Number:

JP2001103954A

Publication Date:

January 31, 2002

Filing Date:

April 02, 2001

Export Citation:

Click for automatic bibliography generation Help

Assignee:

BOSCH GMBH ROBERT

International Classes:

F02M47/02; F02D41/20; F02D41/34; F02D45/00; F02M51/00; F02M51/06; G01R19/00; H01L41/083; H02N2/00; (IPC1-7): H02N2/00; F02D41/34; F02D45/00; F02M47/02; F02M51/00; H01L41/083

Attorney, Agent or Firm:

Toshio Yano (4 outside)

Previous Patent: INVERTER

Next Patent: METHOD AND APPARATUS FOR CONTROLLING SYSTEM PARAMETER