Gm Global Technolgoy Operations, Inc.

Michael A Van Camp

Fred W Huntzicker

Orson S Wang

Anthony P Tata

Steven Alan Kornburger

David A Provenza

Pratyush Kumar

Steven W Gornick

William A Arnold

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.

Brake transmission shift interlock systems and control logic for motor vehicle powertrains

A drive control system of a vehicle includes a vehicle speed module configured to determine whether the vehicle is moving and set a state of a signal based on the determination. A shift control module is configured to shift a transmission of the vehicle based on a signal from a range selector. Independently of the signal from the range selector, the shift control module is configured to selectively shift the transmission of the vehicle based on a signal from a combination park and ignition switch and the signal from the vehicle speed module. An ignition control module is configured to selectively shut down an engine of the vehicle based on the signal from the combination park and ignition switch and the signal from the vehicle speed module.

Systems and methods for controlling a transmission and an engine with a combination park and ignition switch

Methods and systems are provided for preventing vehicle roll. In one embodiment, a method includes: determining a first switch state; determining a second switch state; evaluating the first switch state and the second switch state to determine whether a condition of a mechanical linkage between a range selection device and a transmission has occurred; and selectively generating at least one of a control signal to control an electronic park brake and a notification message based on the determination.

Methods and systems for preventing vehicle roll

A shim carrier assembly for optionally retaining shims therein, wherein the carrier has at least three intercontiguated planar portions with holes or slots therein, such that a fastener may be inserted through the holes or slots for aiding in the shimming of fastened components.

Shim carrier assembly

A shift control assembly and method includes a shift linkage, a shift control rod, and a retainer member. The retainer member is secured to the shift control linkage in a manner such that a fastener integral with the linkage extends through a portion of the retainer clip. The shift control rod is secured to the retainer by clip portions formed thereon in a manner such that a final assembly threaded member can be secured on the fastener member of the shift linkage to complete the shift control assembly. The assembly method involves providing a shift link with a fastener secured thereto, assembling a retainer on the shift link, assembling a control rod on the retainer, and securing the assembly together with a fastener member securely engaging the fastener secured to the shift link.

Growing community of inventors

Swartz Creek, MI, United States of America

Michael A Van Camp