Arrangement and method for charging an accumulator of a transporting device comprising an individual electric drive

US5298849A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Peter Drexel · Steinenbronn, DE
• Rainer Utz · Waiblingen, DE
• Hans Erne · Waiblingen, DE
• Stefan Reitmeier · Waiblingen, DE
• Ulrich Mueller · Hamburg, DE

Key dates

• Filing date: Oct 29, 1991
• Grant date: Mar 29, 1994
• Expiry date: Oct 29, 2011

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T90/16
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

The arrangement for charging an accumulator of a transporting device having its own electric drive at an external charging station having a machining station includes an external control unit for controlling the machining station and the charging, a charge regulating device located in the transporting device and containing a processor with a storage unit, a device for determining an actual charge in the accumulator, and a charging current changing device connected to the processor. The processor is structured to compare the actual charge with at least one charge reference value stored in the storage unit and to act on the charging current changing device so that it changes the charging current so that the accumulator receives at least one of the at least one charge reference values stored in the storage unit; and a signal processing arrangement located in the external charging station and having a device for detecting an action of the charging current changing device on the charging and a device for sending a status signal to the external control unit for each of the at least one charge reference values. In a preferred embodiment two charge reference values are provided, a minimum …