An electrical system for a vehicle includes a main battery system configured to provide power for starting/cranking an engine of the vehicle, an auxiliary battery system configured to provide power for powering a set of accessory loads of the vehicle during starting/cranking of the engine, and a solid-state device disposed therebetween and including a solid-state switch configured to close/open to connect/disconnect the main and auxiliary battery systems to/from each other and intelligence circuity configured to monitor voltages in the main and auxiliary battery systems or current flowing therethrough and, based on the monitoring, commanding the solid-state switch to open to isolate the other of the main and auxiliary battery systems, wherein the isolated one of the main and auxiliary battery systems is configured to provide a degraded but operational operation of an L2+ autonomous driving feature of the vehicle.
TECHNIQUES FOR ADAPTING DUAL-BATTERY START-STOP ARCHITECTURES INTO ADAS REDUNDANT POWER SUPPLIES
2022-11-10
Patent
Electronic Resource
English
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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