Electric vehicle and method for setting total allowable discharge electric energy in the electric vehicle
US8442727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2009 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Jun 5, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
When an accumulated charge amount of a first slave battery reaches a preset accumulated charge amount or less, the first slave battery is set as a used secondary battery, and when a master battery and a second slave battery are connected to sides of motors, accumulated charge amount differences of the master battery and the second slave battery are respectively set as allowable discharge electric energies E1 and E3, value 0 is set as an allowable discharge electric energy E2, and a sum of these allowable discharge electric energies is set as an EV priority allowable electric energy that is an electric energy that is allowed to be discharged as a whole of the master battery, and the two slave batteries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.