CONTROL METHOD FOR AN ACCUMULATOR BATTERY AND A HAND POWER TOOL

• US 20100176766A1
• Filed: 01/07/2010
• Published: 07/15/2010
• Est. Priority Date: 01/09/2009
• Status: Abandoned Application

• Current Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Original Assignee: Hilti Aktiengesellschaft (Hilti Martin Family Trust)
• Inventors: ZIEGLER, Bernd, BRANDNER, Michael, HAUSER, Klaus, MUELLER, Thomas, SCHWAB, Roland
• Application Number:
  US12/683,708
• Publication Number:
  US 20100176766A1
• Time in Patent Office: Days
• US Class Current: 320/136
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A control method for a system of a hand power tool and an accumulator battery is disclosed. The hand power tool is connectable to the accumulator battery via a current interface for supplying the hand power tool. The hand power tool features a data interface for communicating with the accumulator battery. Characterizing data of the hand power tool and/or data about an operating process of the hand power tool is transmitted to the accumulator battery via the interface.

Claims

1. A control method for an accumulator battery, which includes an interface for communicating with a hand power tool and for supplying the hand power tool, comprising the steps of:

receiving characterizing data of the hand power tool and/or data about an operating process of the hand power tool via the interface.

2. The control method according to claim 1, wherein the characterizing data include a load profile of the hand power tool.

3. The control method according to claim 1, wherein characterizing data about a maximum permissible duration for which a voltage limit of the accumulator battery and/or of individual cells of the accumulator battery may be fallen short of are received via the interface and if a total discharge protection of the accumulator battery determines that the voltage limit has been fallen short of longer than the maximum permissible duration, a warning signal is output via the interface and/or a power supply via the interface is interrupted.

4. A control method for a hand power tool, which includes an interface for communicating with an accumulator battery and for supplying from the accumulator battery, comprising the steps of:

outputting characterizing data of the hand power tool and/or data about an operating process of the hand power tool via the interface.

5. The control method according to claim 4, wherein characterizing data about a maximum permissible duration for which a voltage limit of the accumulator battery may be fallen short of are output via the interface and if a warning signal of a total discharge protection that the voltage limit has been fallen short of longer than the maximum permissible duration is received via the interface, a motor of the hand power tool is switched off.

6. The control method according to claim 5, wherein the characterizing data are read out of a permanent memory of the hand power tool.

7. The control method according to claim 4, wherein the characterizing data are output if a system switch of the hand power tool is not actuated for longer than a predetermined period of time.

8. The control method according to claim 4, wherein during a transmission of the characterizing data, a motor of the hand power tool is deactivated.

9. The control method according to claim 5, wherein the characterizing data contain a default for the voltage limit.

10. The control method according to claim 4, wherein a recording device of the hand power tool logs an operation of the hand power tool and transfers data of the logged operation to the accumulator battery for storage in the accumulator battery.

11. The control method according to claim 10, wherein the data are transmitted if a system switch is not actuated for longer than a predetermined period of time.

12. A control method for a system of a hand power tool and an accumulator battery, wherein the hand power tool is connectable to the accumulator battery via a current interface for supplying the hand power tool, and the hand power tool includes a data interface for communicating with the accumulator battery, comprising the steps of:

transmitting characterizing data of the hand power tool to the accumulator battery and/or data about an operating process of the hand power tool.

13. An accumulator battery for a hand power tool, which includes an interface for communicating with the hand power tool and for supplying the hand power tool, comprising:

a total discharge protection for monitoring a total discharge in response to characteristic data of the hand power tool transmitted by the hand power tool and/or a data memory for storing data about an operating process of the hand power tool which are transmitted by the hand power tool.

14. A power tool system, comprising:

a hand power tool;

an accumulator battery; and

an interface for communication between the hand power tool and the accumulator battery, wherein characterizing data of the hand power tool and/or data about an operating process of the hand power tool is communicable from the hand power tool to the accumulator battery via the interface.