Patents
US 9132825 B2: Method and apparatus for preventing over-shifting on electric vehicles
- Granted
- 2015-09-15
- Filed
- 2014-01-21 application 14160027
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Methods and apparatus are provided for preventing over-shifting in electric vehicles having a multi-gear transmission and an electric motor operable in a drive mode and a regenerative braking mode. The method includes: (a) predicting the speed of the electric motor resulting from downshifting from a current gear being used to a next lower gear based on a current speed of the electric vehicle, a current speed of the electric motor, and a gear ratio of the next lower gear; (b) determining if the speed of the electric motor predicted in (a) will cause an overvoltage condition from regenerative braking or an overspin condition in the electric motor; (c) preventing downshifting to the next lower gear when it is determined that the downshifting will cause an overvoltage condition or an overspin condition in the electric motor; and (d) repeating steps (a), (b), and (c) a plurality of times.
Source: PVGPATDIS, file of 2026-04-10 (ipg150915.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Brammo, Inc. 5 patents | US company or organization | Talent, OR | BRAMMO INC Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Daniel M. Riegels | Ashland, OR | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B60W | Conjoint control of vehicle sub-units of different type or different function; control systems specially adapted for hybrid vehicles; road vehicle drive control systems for purposes not related to the control of a particular sub-unit | B60W10/08 | PVGPATDIS, file of 2026-04-10 |
| F16H | Gearing | F16H61/16 | PVGPATDIS, file of 2026-04-10 |
| B60Y | Indexing scheme relating to aspects cross-cutting vehicle technology | B60Y2200/91 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2018-08-31 | Name change Change of name | CEB HOLDCO, LLC signed 2018-06-28 | CUMMINS BATTERY SYSTEMS NORTH AMERICA LLC COLUMBUS, IN | 46994/38 | ECORSEXC, file of 2026-09-25 |
| 2018-04-19 | Assignment Assignment of assignor's interest | BRAMMO, INC. signed 2017-10-27 | CEB HOLDCO, LLC COLUMBUS, IN | 45583/156 | ECORSEXC, file of 2026-09-25 |
| 2016-10-19 | Security interest Security interest Security interest | BRAMMO, INC. signed 2016-10-19 | POLARIS INDUSTRIES INC., AS COLLATERAL AGENT MEDINA, MN | 40064/897 | ECORSEXC, file of 2026-09-25 |
| 2016-10-19 | Release of security interest Release of security interest | FLEXTRONICS INTERNATIONAL KFT. signed 2016-10-19 | BRAMMO, INC. TALENT, OR | 40064/344 | ECORSEXC, file of 2026-09-25 |
| 2014-12-31 | Security interest Security interest Transfer of security interest | FLEXTRONICS AUTOMOTIVE SALES AND MARKETING, LTD. signed 2014-11-18 | FLEXTRONICS INTERNATIONAL KFT. TAB | 34718/606 | ECORSEXC, file of 2026-09-25 |
| 2014-11-10 | Security interest Security interest Security interest | BRAMMO, INC. signed 2010-09-14 | FLEXTRONICS AUTOMOTIVE SALES AND MARKETING, LTD. EBENE | 34139/900 | ECORSEXC, file of 2026-09-25 |
| 2014-06-03 | Assignment Assignment of assignor's interest | RIEGELS, DANIEL M. signed 2014-05-12 | BRAMMO, INC. ASHLAND, OR | 33019/790 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.