US 9,813,110 B2
Data transmission using an electrical machine
Rainer Glauning, Leinfelden-Echterdingen (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on May 9, 2014, as Appl. No. 14/274,394.
Claims priority of application No. 10 2013 208 834 (DE), filed on May 14, 2013.
Prior Publication US 2014/0339922 A1, Nov. 20, 2014
Int. Cl. H04B 3/02 (2006.01)
CPC H04B 3/02 (2013.01) 12 Claims
OG exemplary drawing
 
1. A battery pack, comprising:
an electrical energy store;
a data memory; and
an interface for selective alternative connection of the battery pack to a power tool and a battery charger connected through a data network to a central control unit, the battery pack powering the power tool when connected to the power tool, and the battery pack being charged by the battery charger when connected to the battery charger;
wherein the data memory is configured to (i) receive and store first data from the power tool while the interface is connected to the power tool, and provide the first data to the central control unit over the data network via the battery charger while the interface is connected to the battery charger, and (ii) store second data from the central control unit received over the data network via the battery charger when the interface is connected to the battery charger, and provide the second data to the power tool while the interface is connected to the power tool; and
wherein usage information regarding usage of the power tool is transmitted over the data network to the central control unit via the data memory of the battery pack, and wherein usage comments are transmitted, in response to the usage information, from the central control unit over the data network to the power tool over the data network via the data memory of the battery pack.