Voltage control using engine speed
US6226998A · kind A · utility
37Cited by
19References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Mar 26, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/3208
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An process and method for monitoring and limiting high voltage conditions in a transport refrigeration unit is disclosed. The system provides a microprocessor control which monitors the load, generator temperature and engine speed and compares it to an algorithm or map programmed into a controller for the unit. The map or algorithm preferably predicts voltage based upon load (amperage), generator temperature and engine speed. If the result of the monitored features predicts a voltage above preselected acceptable levels which are programmed into the controller, then the controller will drop the engine into low speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.