Closed-loop control algorithm for an eddy current braking system
US6619760B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 2002 |
| Grant date | Sep 16, 2003 |
| Priority date | — |
| Expiry date | Mar 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L7/28
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and system for controlling an eddy current braking system in a motor vehicle is provided. The motor vehicle includes a prime mover linked to the eddy current braking system to provide torque thereto, and the eddy current braking system has a retarder assembly including at least a rotor and a stator. The method includes the steps of detecting a feedback current from the retarder assembly, detecting a rotor speed of the rotor, providing a signal indicative of a desired retarding torque, and determining a command current for the retarder as a function of the feedback current, rotor speed and desired retarding torque using a closed-loop sliding-mode control algorithm. The command current is provided to the retarder to control application of torque to the prime mover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.