Methods and systems for reducing the speed of a vehicle
US8924105B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2013 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Jul 30, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T2260/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A controller can execute a method to reduce a speed of a vehicle by initiating a vehicle stop request in response to a vehicle signal received while the vehicle is in motion. The method includes: (a) applying a wheel brake in response to initiation of the vehicle stop request when the vehicle is moving at a vehicle speed less than or equal to a first vehicle speed threshold in order to reduce the vehicle speed; and (b) actuating a parking sprag assembly to stop rotation of an output member of a transmission when the vehicle speed is equal to or less than a second vehicle speed threshold. By example, the vehicle signal may be a park signal, an engine off signal, or a plurality of signals defining a condition set. The wheel brake may be at least one of an electronic park brake and a service brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.