Brake transmission shift interlock systems and control logic for motor vehicle powertrains
US11326690B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 1, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Nov 15, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/223
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Presented are Brake Transmission Shift Interlock (BTSI) systems for vehicle powertrains, methods for making/operating such BTSI systems, and vehicles equipped with a BTSI system. A BTSI system for a motor vehicle includes a shifter solenoid with a solenoid body that mounts to the vehicle body, and a solenoid armature that is movably attached to the solenoid body to transition back-and-forth between locked and unlocked positions. The shifter solenoid is selectively operable via a brake control module to move the solenoid armature between the locked and unlocked positions to thereby block and unblock movement of a gear shifter from the park position, respectively. A position switch mounts to the vehicle body adjacent the shifter solenoid and detects the vehicle transmission being in a park mode. The position switch selectively mechanically engages with the shifter solenoid such that the solenoid armature, upon moving to the locked position, pushes closed the position switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.