METHOD AND APPARATUS FOR INCREASING SAFETY WHEN USING BATTERY SYSTEMS

• US 20150288200A1
• Filed: 04/03/2015
• Published: 10/08/2015
• Est. Priority Date: 04/04/2014
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Partes, Hans, Fink, Holger, Wolff, Hans-Joerg
• Application Number:
  US14/678,238
• Publication Number:
  US 20150288200A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/425 Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing printed circuits H05K1/00
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H01M 2010/4271 Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
• CPC Class Codes: H02J 7/0016 using shunting, discharge or bypass circuits
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A method for operating a battery system (EB). The battery system (EB) contains at least one battery apparatus. If a safe state of the at least one battery apparatus is brought about from an irregular operating state of the at least one battery apparatus, a present state of the at least one battery apparatus is continually checked and rated by at least one component (CSC) of the battery system and the safe state is brought about on the basis of the present state of the at least one battery apparatus or of an ambient state of the at least one battery apparatus. In that returning the at least one battery apparatus to a regular operating state utilization of at least one of a group including a key, a smartcard, a radio signal, and an input of a security code is required.

Claims

1. A method for operating a battery system (EB) containing at least one battery apparatus, wherein if a safe state of the at least one battery apparatus is brought about from an irregular operating state of the at least one battery apparatus, a present state of the at least one battery apparatus is continually checked and rated by at least one component (CSC) of the battery system and the safe state is brought about on the basis of the present state of the at least one battery apparatus or of an ambient state of the at least one battery apparatus, characterized in that returning the at least one battery apparatus to a regular operating state requires utilization of at least one of a group including a key, a smartcard, a radio signal, and an input of a security code.

2. The method according to claim 1, characterized in that, a hazard information item is transmitted to a battery management system (BMS) by at least one component (CSC) of the battery system (EB), said hazard information item being a hazard information item about the present state of the at least one battery apparatus and/or about the ambient state of the at least one battery apparatus and/or about the circumstance that the at least one battery apparatus is in the safe state.

3. The method according to claim 2, wherein the hazard information item is transmitted to the battery management system (BMS) by the at least one component (CSC) of the battery system (EB) after the safe state of the at least one battery apparatus is brought about.

4. The method according to claim 2, characterized in that the battery management system (BMS) takes the hazard information item as a basis for monitoring at least one other battery apparatus and, obtains a check information item about the at least one other battery apparatus and/or the at least one battery apparatus.

5. The method according to claim 4, wherein the at least one battery apparatus is monitored by a sensor system.

6. The method according to claim 4, characterized in that the battery management system (BMS) takes the hazard information item and/or the check information item as a basis for bringing about the safe state of the at least one other battery apparatus, wherein returning the at least one other battery apparatus to its regular operating state requires utilization of at least one of a group including a key, a smartcard, a radio signal, and an input of a security code, or the battery management system (BMS) takes the check information item as a basis for returning the at least one battery apparatus to the regular operating state.

7. The method according to claim 1, wherein the battery system (EB) is a lithium ion battery system,

8. The method according to claim 1, wherein returning the at least one battery apparatus to a regular operating state requires utilization the input of a security code into the at least one component (CSC) of the battery system (EB).

9. A controller for a battery system (EB), suitable for operation of the battery system (EB), wherein if a safe state of the at least one battery apparatus is brought about from an irregular operating state of the at least one battery apparatus, a present state of the at least one battery apparatus is continually checked and rated by at least one component (CSC) of the battery system (EB) and the safe state is brought about on the basis of the present state of the at least one battery apparatus or an ambient state of the at least one battery apparatus, characterized in that returning the at least one battery apparatus to a regular operating state is performed using a method according to claim 1.

10. A battery system (EB), characterized in that a controller according to claim 9 is provided.

11. The battery system (EB) according to claim 10, characterized in that the controller contains at least one battery apparatus and said at least one battery apparatus is a battery module or a battery cell (Z).