# US 2014/0152445 A1 · Warning system for monitoring a vehicle battery > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0152445 A1 - Document ID: US20140152445A1 - Status: Published application - Kind: A1 - Application number: 14/094,914 - Filed: 2013-12-03 - Published: 2014-06-05 - Earliest claimed: 2012-12-03 - Assignees: Samsung SDI Co., Ltd.; Robert Bosch GmbH - Applicants: Samsung SDI Co., Ltd.; Robert Bosch GmbH - Inventors: Berengar Krieg; Andreas Heyl - Web page: https://patentgrep.com/patent/US20140152445A1 ## CPC - B60L 53/14: Conductive energy transfer - B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors} - B60L 3/12: Recording operating variables {; Monitoring of operating variables} - B60L 15/40: Adaptation of control equipment on vehicle for remote actuation from a stationary place (devices along the route for controlling devices on rail vehicles B61L3/00; central rail-traffic control systems B61L27/00) - B60L 53/30: Constructional details of charging stations - B60L 53/65: involving identification of vehicles or their battery types - B60L 58/10: for monitoring or controlling batteries - B60L 58/21: having the same nominal voltage - B60W 20/00: Control systems specially adapted for hybrid vehicles {(hybrid vehicle design, B60K6/00; electric vehicles B60L)} - G08B 17/00: Fire alarms; Alarms responsive to explosion - A62C 3/07: in vehicles, e.g. in road vehicles - A62C 3/16: in electrical installations, e.g. cableways - B60L 2240/545: Temperature - B60L 2240/547: Voltage - B60L 2240/549: Current - B60L 2240/70: Interactions with external data bases, e.g. traffic centres - B60L 2240/80: Time limits - B60L 2250/10: by alarm - B60Y 2400/214: by power from domestic supply, e.g. plug in supplies - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors - Y02T 10/72: Electric energy management in electromobility - Y02T 90/12: Electric charging stations - Y02T 90/14: Plug-in electric vehicles - Y02T 90/16: Information or communication technologies improving the operation of electric vehicles - Y02T 90/167: Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV] - Y04S 30/14: Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS ## Abstract A warning system for detecting a battery fire in a battery of an electric or hybrid vehicle includes a battery management system. The electric or hybrid vehicle is parked at or in a building to carry out a battery charging operation. The battery management system is connected to a building network installed in the building during the charging operation either via a direct connection or via a wireless connection. The battery management system triggers or activates protective measures if a fire is detected. ## Claims ### Claim 1 A warning system for detecting a battery fire in a battery of an electric or hybrid vehicle parked at or in a building for carrying out a battery charging operation, comprising: a battery management system connected to a building network installed in the building during the charging operation via a direct connection or via a wireless connection, the battery management system being configured to activate protective measures if a fire is detected. ### Claim 2 (depends on 1) The warning system according to claim 1, wherein the battery management system is configured to detect a battery fire by measuring and checking the plausibility of battery characteristic variables. ### Claim 3 (depends on 1) The warning system according to claim 1, wherein the battery management system comprises temperature sensors configured to detect the rise in a temperature of the battery above a temperature threshold. ### Claim 4 (depends on 1) The warning system according to claim 1, wherein the direct connection between the battery management system and the building network is a charging cable. ### Claim 5 (depends on 1) The warning system according to claim 1, wherein the wireless connection between the battery management system and the building network is a WLAN connection, a radio connection, or a Bluetooth connection. ### Claim 6 (depends on 1) The warning system according to claim 1, wherein the warning system comprises an extinguishing system connected to the building network and configured to be triggered via the building network. ### Claim 7 (depends on 1) The warning system according to claim 1, wherein the warning system comprises a building alarm system configured to be triggered via the building network. ### Claim 8 (depends on 1) The warning system according to claim 1, wherein the building network is connected to an external notification office via an external connection. ### Claim 9 (depends on 1) The warning system according to claim 1, wherein the battery management system configured to activate a vehicle alarm system of the electric or hybrid vehicle if the direct connection or the wireless connection to the building network is interrupted. ### Claim 10 (depends on 1) The warning system according to claim 1, wherein a fire in the electric vehicle is activated via a vehicle-external control device assigned to the building charging connection. ### Claim 11 (depends on 1) The warning system according to claim 1, further comprising an additional vehicle-internal monitoring unit configured to detect when a critical temperature threshold is exceeded when the battery management system is switched off and activate the building network or alarm systems. ### Claim 12 (depends on 11) The warning system according to claim 11, wherein the additional monitoring unit comprises at least one temperature sensor and an evaluation unit provided either at a charging station or on the electric vehicle. ### Claim 13 (depends on 1) The warning system according to claim 1, wherein the building network comprises one or more of at least one smoke sensor and at least one gas sensor. ### Claim 14 (depends on 2) The warning system according to claim 2, wherein the battery characteristic variables include one or more of voltage, temperature, and current. ### Claim 15 (depends on 8) The warning system according to claim 8, wherein the external notification office is a fire station or the German agency for technical relief.