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US 12,614,773 B2Granted
Fire suppression system
AssigneeDafo Vehicle AB
InventorAnders Gulliksson
Life of this patent
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Abstract
A fire suppression system including a gas detector device associated with an electrochemical unit and configured for detecting at least one gas character; a control unit coupled to the gas detector device and configured to, in a first comparison execution, compare said at least one gas character with at least one pre-set indicative gas character; wherein the control unit is configured to command an outlet device to discharge a fire extinguishing fluid over the electrochemical unit if the first comparison execution signifies that the detected gas character corresponds with the pre-set indicative gas character.
Claims18
A method of reducing heat output of an electrochemical unit by an automotive fire suppression system of a vehicle and comprising:
- a fire extinguishing fluid container arranged adjacent to and/or in contact with the automotive electrochemical unit, the fire extinguishing fluid container adapted to hold a fire extinguishing fluid for reducing heat output of the automotive electrochemical unit, the fire extinguishing fluid being a liquid;
- and
- a secondary fire suppression system adapted to be coupled to an automotive computer system of the vehicle, the secondary fire suppression system comprising:
- an outlet device coupled to the fire extinguishing fluid container and configured to discharge the fire extinguishing fluid upon command;
- a gas detector associated with the automotive electrochemical unit and configured for detecting at least one gas character;
- a control unit coupled to the gas detector and configured to, in a first comparison execution, compare said at least one gas character with at least one pre-set indicative gas character;
- wherein the control unit is configured to command the outlet device to discharge the fire extinguishing fluid on and/or into and/or fully around and/or partly around the automotive electrochemical unit if the first comparison execution signifies that the detected gas character corresponds with the pre-set indicative gas character;
- the method comprising the steps of:
- positioning the automotive electrochemical unit in a protective housing;
- arranging the fire extinguishing fluid container adjacent or in contact with the automotive electrochemical unit;
- filling the fire extinguishing fluid container with the extinguishing fluid prior or after said arranging step;
- detecting a gas leakage from the automotive electrochemical unit via the gas detector;
- performing said first comparison execution;
- commanding the outlet device to discharge the fire extinguishing fluid if the detected gas character corresponds with the pre-set indicative gas character;
- detecting a temperature change and/or temperature of the automotive electrochemical unit by a temperature detector coupled to the control unit;
- comparing, in a second comparison execution, the temperature change and/or temperature of the automotive electrochemical unit with a pre-determined temperature change and/or a temperature;
- commanding the outlet device to discharge the fire extinguishing fluid if the detected temperature change and/or temperature corresponds with a pre-set indicative temperature change and/or temperature;
- wherein the first comparison execution is configured to prevail over the second comparison execution;
- and
- the step of discharging the fire extinguishing fluid comprises discharge of the fire extinguishing fluid into the protective housing.
17 more elements
An automotive fire suppression system of a vehicle, the automotive fire suppression system comprising:
- an automotive electrochemical unit;
- a fire extinguishing fluid container arranged adjacent to and/or in contact with the automotive electrochemical unit, the fire extinguishing fluid container adapted to hold a fire extinguishing fluid for reducing heat output of the automotive electrochemical unit, the fire extinguishing fluid being a liquid;
- and
- a secondary fire suppression system adapted to be coupled to an automotive computer system of the vehicle, the secondary fire suppression system comprising:
- an outlet device coupled to the fire extinguishing fluid container and configured to discharge the fire extinguishing fluid upon command;
- a gas detector associated with the automotive electrochemical unit and configured for detecting at least one gas character;
- a control unit coupled to the gas detector and configured to, in a first comparison execution, compare said at least one gas character with at least one pre-set indicative gas character;
- wherein the control unit is further configured to command the outlet device to discharge the fire extinguishing fluid on and/or into and/or fully around and/or partly around the automotive electrochemical unit, if the first comparison execution signifies that the detected gas character corresponds with the pre-set indicative gas character;
- and
- a temperature detector coupled to the control unit and configured for detecting a real-time temperature change and/or temperature of the automotive electrochemical unit;
- wherein the control unit is configured to, in a second comparison execution, compare the real time temperature change and/or temperature of the automotive electrochemical unit with a pre-determined temperature change;
- wherein the control unit is configured to command the outlet device to discharge the fire extinguishing fluid if the detected temperature change and/or temperature corresponds with a pre-set indicative temperature change and/or temperature;
- and
- wherein the first comparison execution is configured to prevail over the second comparison execution.
11 more elements
A method of reducing heat output of an automotive electrochemical unit by an automotive fire suppression system of a vehicle, the automotive fire suppression system comprising:
- a fire extinguishing fluid container adapted to be arranged remote and/or adjacent to and/or in contact with the automotive electrochemical unit, the fire extinguishing fluid container adapted to hold a fire extinguishing fluid for reducing the heat output of the automotive electrochemical unit, the fire extinguishing fluid being a liquid;
- and
- a secondary fire suppression system adapted to be coupled to an automotive computer system of the vehicle, the secondary fire suppression system comprising a control unit and at least one fire extinguishing fluid outlet device coupled to the fire extinguishing fluid container and configured to discharge the fire extinguishing fluid over the automotive electrochemical unit upon command from the automotive computer system of the automotive fire suppression system and/or from the control unit of the secondary fire suppression system, the method comprising the steps of:
- arranging the fire extinguishing fluid container in the vehicle;
- filling the fire extinguishing fluid container with the extinguishing fluid prior or after said arranging step;
- coupling the automotive computer system of the automotive fire suppression system to the control unit of the secondary fire suppression system via a communication protocol;
- comparing, in an automotive comparison execution, a real time temperature change and/or temperature of the automotive electrochemical unit detected by the automotive fire suppression system, with an indicative temperature change and/or indicative temperature of the automotive electrochemical unit;
- and
- comparing, in a first comparison execution, at least one gas character, generated by the automotive electrochemical unit and detected by the secondary fire suppression system, with at least one indicative gas character pre-set in the control unit of the secondary fire suppression system;
- and
- commanding discharge of the fire extinguishing fluid, if either of the automotive comparison execution or the first comparison execution or both comparison executions implies that an indicative limit is exceeded.
8 more elements
An automotive fire suppression system for a vehicle configured to reduce heat output of an automotive electrochemical unit of the vehicle, the automotive fire suppression system comprising:
- a fire extinguishing fluid container adapted to be arranged remote and/or adjacent to and/or in contact with the automotive electrochemical unit, the fire extinguishing fluid container adapted to hold a fire extinguishing fluid for reducing the heat output of the automotive electrochemical unit, the fire extinguishing fluid being a liquid;
- and
- a secondary fire suppression system adapted to be coupled to an automotive computer system of the vehicle, the secondary fire suppression system comprising:
- a control unit adapted to couple to the automotive computer system via a communication protocol;
- and
- at least one fire extinguishing fluid outlet device coupled to the fire extinguishing fluid container and configured to discharge the fire extinguishing fluid over the automotive electrochemical unit upon command from the automotive computer system and/or command from the control unit of the secondary fire suppression system,
- wherein the control unit is configured to
- compare, in an automotive comparison execution, a real time temperature change and/or temperature of the automotive electrochemical unit detected by the automotive fire suppression system, with an indicative temperature change and/or indicative temperature of the automotive electrochemical unit;
- compare, in a first comparison execution, at least one gas character, generated by the automotive electrochemical unit and detected by the secondary fire suppression system, with at least one indicative gas character pre-set in the control unit of the secondary fire suppression system;
- and
- command discharge of the fire extinguishing fluid, if either of the automotive comparison execution or the first comparison execution or both comparison executions implies that an indicative limit is exceeded.
8 more elements
Dependencies are inferred from the claim text.