Global Patent Index - EP 1585890 A1

EP 1585890 A1 20051019 - ARRAYS FOR CONTROLLABLE POWER SUPPLY OF ELECTROVALVES OF AN ELECTROHYDRAULIC VALVE CONTROL

Title (en)

ARRAYS FOR CONTROLLABLE POWER SUPPLY OF ELECTROVALVES OF AN ELECTROHYDRAULIC VALVE CONTROL

Title (de)

ANORDNUNGEN ZUM ANSTEUERBAREN VERSORGEN VON MAGNETVENTILEN EINER ELEKTROHYDRAULISCHEN VENTILSTEUERUNG

Title (fr)

AMENAGEMENTS POUR ALIMENTER DE MANIERE COMMANDABLE DES ELECTROVANNES D'UNE DISTRIBUTION A SOUPAPES ELECTROHYDRAULIQUE

Publication

EP 1585890 A1 (DE)

Application

EP 03737911 A

Priority

  • DE 0301718 W
  • DE 10251034 A

Abstract (en)

[origin: WO2004042201A1] The invention relates to an array for controllable power supply of electrovalves of an electrohydraulic valve control of an internal combustion engine, wherein the actuator of the charge cycle has electrovalves assigned thereto. A two-stage power supply for the electrovalves is provided, namely the supply with a breakaway starting voltage provided by a breakaway starting voltage source and the supply with a withstand voltage provided by a withstand voltage source. The breakaway starting voltage is greater than the withstand voltage. The electrovalves are operated independently of one another during the breakaway starting current period with a corresponding breakaway starting current as a result of the breakaway starting voltage being applied and during a withstand current period with a corresponding withstand current as a result of the withstand voltage being applied. Each electrovalve is provided with a withstand voltage line and a breakaway starting voltage line, which connect the electrovalve to the withstand voltage source or the breakaway starting voltage source. A grounding line connects each electrovalve to the ground, wherein a ground disconnector is arranged in each grounding line for switchable disconnection of the electrical connection between the electrovalve and the ground.

IPC 1-7

F01L 9/04; F01L 9/02

IPC 8 full level

F01L 9/02 (2006.01); F01L 9/04 (2006.01)

CPC (source: EP)

F01L 9/02 (2013.01); F01L 9/04 (2013.01)

Citation (search report)

See references of WO 2004042201A1

Designated contracting state (EPC)

DE FR IT

DOCDB simple family (publication)

WO 2004042201 A1 20040521; DE 10251034 A1 20040519; EP 1585890 A1 20051019; JP 2006504897 A 20060209; US 2006137633 A1 20060629

DOCDB simple family (application)

DE 0301718 W 20030527; DE 10251034 A 20021102; EP 03737911 A 20030527; JP 2004549038 A 20030527; US 53238105 A 20050906