Estimation method for a vehicle having an engine and a cycling accessory device
US6298675A · kind A · utility
3Cited by
14References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2000 |
| Grant date | Oct 9, 2001 |
| Priority date | — |
| Expiry date | Jan 12, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/3208
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method for controlling cycling of an air conditioning compressor coupled to an internal combustion engine interrupts normal cycling based on operation conditions. In addition, normal engaged and disengaged cycling durations are adaptively estimated in real-time. The method of the present invention achieves improved fuel economy and improved drive feel. As an example, improved fuel economy is achieved by engaging the compressor during braking or when the engine is being driven by the vehicle. As another example, improved drive feel is achieved by engaging the compressor during transient conditions when drive feel is unaffected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.