Warning method and system for vehicles
US4438422A · kind A · utility
25Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1981 |
| Grant date | Mar 20, 1984 |
| Priority date | — |
| Expiry date | Aug 26, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R16/0373
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A warning system for vehicles monitors malfunctions in various items of a vehicle which are to be detected, such as, the failure of the tail lamps, headlamps, etc., whereby when a malfunction is detected in any one of the items, a visual indication corresponding to the malfunction of the item is given inside the vehicle compartment and then the indicated malfunction is indicated by voice inside the vehicle compartment when it is determined that a predetermined time has expired from the time of beginning the visual indication. The magnitude of the voice is controlled by the ambient sound level detected in the vehicle compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.