Coordinated regenerative and engine retard braking for a hybrid vehicle
US7131708B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2004 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | May 14, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hybrid vehicle includes a powertrain having a retarded diesel engine, an electric machine and energy storage system. The engine and motor are operatively coupled through one or more planetary gearsets and selective coupling paths in accordance with application and release of various torque transfer devices to a drivetrain via an output. Regenerative and retarded engine braking are coordinated to provide priority to energy return to an energy storage system in accordance with predetermined power flow limits. Power flow in excess of the limits are handled by increased engine retard braking contributions via engine speed increases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.