Cold-crank event management
US9644593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2014 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Feb 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02N2250/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for managing cold-crank events. In an embodiment, a method may include detecting a cold-crank event and setting a switching circuit to a non-conductive state, where the switching circuit is configured to couple a first regulator to a memory circuit such that setting the switching circuit to the non-conductive state de-couples the memory circuit from the first regulator. The method may also include setting the switching circuit to a conductive state in current limitation mode during a recovery period following the cold-crank event to re-couple the memory circuit to the first regulator. In another embodiment, an electronic device include a switching circuit, a first regulator coupled to a first terminal of the switching circuit, a second regulator coupled to a second terminal of the switching circuit, a logic circuit coupled to the switching circuit, and a memory circuit coupled to the second terminal of the switching circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.