Emergency center high mounted stop lamp (CHMSL) controller
US11203289B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2019 |
| Grant date | Dec 21, 2021 |
| Priority date | — |
| Expiry date | Nov 21, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Y2400/114
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved Center High Mounted Stop Lamp (CHMSL) harvests electrical power while providing additional features when the CHMSL is not powered during a brake application. Electronic circuitry determines if the different sources of electrical power have sufficient energy to activate the light-emitting device; senses a vehicle braking or emergency event to activate the light-emitting device upon sensing the event; and switches from one source of electrical power to a different source of electrical power if it is determined that a particular source of electrical power has become depleted or incapable of activating the light-emitting device. The different sources of electrical power may include a supercapacitor, a rechargeable battery, or a primary battery. The electronic circuitry operative to sense a braking or emergency event may include a brake signal input or an inertial measurement unit (IMU).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.