Method and apparatus for continuously determining a chronodrasic interval
US4454582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Mar 18, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G5/54
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and apparatus for determining the time remaining for maximum control action to be taken in order to achieve a desired objective (i.e., the chronodrasic interval) is disclosed. The method and apparatus continuously determines the amount of a parameter (e.g., runway distance) required to achieve a desired objective (e.g., stopping an aircraft before reaching the end of a runway on landing or accelerating an aircraft so that it reaches rotation speed before reaching the end of a runway on takeoff) if maximum control action is applied. The method and apparatus also continuously determines the total amount of the parameter remaining. The chronodrasic interval is then determined by deducting the amount of the parameter required to achieve the desired objective if maximum control action is taken from the total amount of the parameter remaining; and, dividing the result by a preselected (e.g., present or maximum) rate of change of the parameter. The value of the chronodrasic interval, if below a predetermined value, is applied to a display to provide interactive information adapted to apprise a human operator of the need to take control action and the effectiveness of the control …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.