Circuit-triggered fault mitigation for battery electric system and motor vehicle having the same

A battery electric system for a motor vehicle or another electrified system includes a battery pack connected to a direct current voltage bus, and having positive and negative battery terminals, a main pyrotechnic fuse ("pyro fuse"), a high-voltage (HV) component connected to the bus via a...

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Bibliographische Detailangaben
Hauptverfasser:	Prasad, Rashmi, Chandler, Andrew K, Shedge, Shubham V, Pitses, Eleni C, Heydel, Robert J, Namuduri, Chandra S
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRIC SWITCHES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS EMERGENCY PROTECTIVE DEVICES GENERATION MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS RELAYS SELECTORS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A battery electric system for a motor vehicle or another electrified system includes a battery pack connected to a direct current voltage bus, and having positive and negative battery terminals, a main pyrotechnic fuse ("pyro fuse"), a high-voltage (HV) component connected to the bus via an HV channel, a current sensing element connected to the HV component on the HV channel, and a control system configured to selectively disconnect the battery pack from the bus by transmitting a voltage signal to the main pyro fuse when a measured current value from the current sensor is indicative of a short-circuit fault. A channel switch may be connected to or integral with the current sensing element, and configured to disconnect the HV component from the bus by opening in response to the measured current value.