Techniques for adapting dual-battery start-stop architectures into ADAS redundant power supplies
US11840159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 10, 2021 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Oct 21, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W30/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.