Circuit for a latching relay

US6323562A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Stefan Renner · Leonberg, DE
• Claus Kramer · Besigheim, DE
• Karl-Otto Schmidt · Ansbach, DE
• Uwe Daurer · Kornwestheim, DE

Key dates

• Filing date: Jul 21, 1999
• Grant date: Nov 27, 2001
• Expiry date: Jul 21, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02N2200/066
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A circuit arrangement for an engagement relay of a starter mechanism of an internal combustion engine, for bringing two gearwheels in engagement, the circuit arrangement having a switching element which reduces a relay current after a first time period before meshing of the two gear wheels to a determined current value during a second time period, the switching element being formed as a controlling and regulating device which increases a relay current to a predetermined value to a third time period which starts when one gear wheel reaches the other gear wheel.