Power management systems and methods in a hybrid vehicle
US8190318B2 · kind B2 · utility
34Cited by
4References
25Claims
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Key dates
| Filing date | Apr 8, 2009 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Aug 10, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A system and method of determining and applying power split ratios to power sources within hybrid vehicles. The power split ratio is determined using a two-scale dynamic programming technique to achieve optimal state of charge depletion over the course of a trip. On the macro-scale level, a global state of charge profile is created for the entire trip. On the micro-scale level, the state of charge profile and accompanying power split ratio is recalculated at the end of each segment as the vehicle proceeds along the trip. Various trip modeling techniques are used to provide constraints for the dynamic programming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.