Signal light system for agricultural equipment
US6239696A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Mar 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60Q2800/20
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self propelled windrower having no brake pedal is provided with a signal light system conforming to standards for agricultural equipment traveling on public roads. The ground speed of the equipment is sensed and, after it exceeds a threshold speed, computation of equipment acceleration/deceleration begins. When the deceleration exceeds a deceleration threshold, the brake lamps are enabled according to the settings of left turn and right turn signal switches. The brake lamps are enabled as long as the deceleration exceeds the threshold and for a short interval (2 sec) thereafter. If the speed drops below the speed threshold during the short interval, the brake lamps are enabled for an extended period (2 min).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.