System and method for controlling regenerative braking in a vehicle
US9630508B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2015 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Dec 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/72
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle and a method for controlling regenerative braking may utilize the maximum available regenerative braking torque for some time during a braking event. As the vehicle speed and/or powertrain torque decreases, the regenerative braking torque is controlled to deviate from the maximum. The point at which the regenerative braking torque deviates from the maximum is chosen based on the level of vehicle deceleration. The regenerative braking torque is then smoothly blended out until it reaches zero. The regenerative braking torque is brought to zero when the vehicle speed is very low, thereby eliminating the inefficiencies associated with operating a motor at a very low speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.