公开(公告)号：US20170146117A1

公开(公告)日：2017-05-25

申请号：US14950505

申请日：2015-11-24

Applicant: GM Global Technology Operations LLC

Inventor： Timothy P. PHILIPPART ,  Michael R. Grimes

IPC: F16H61/12 ,  F16H61/02

CPC classification number: F16H61/12 ,  F16H61/0204 ,  F16H63/48 ,  F16H2061/1208 ,  F16H2061/1224

Abstract: A system according to the principles of the present disclosure includes a first solenoid control module, a fault diagnostic module, and a second solenoid control module. The first solenoid control module controls a plurality of solenoids to shift gears in a transmission. The fault diagnostic module diagnosis a fault in a transmission control system based on an operating parameter of the transmission control system. The second solenoid control module selectively controls the plurality of solenoids to shift gears in the transmission when a fault in the transmission control system is diagnosed.

公开(公告)号：US09779247B2

公开(公告)日：2017-10-03

申请号：US14725387

申请日：2015-05-29

Applicant: GM Global Technology Operations LLC ,  Freescale Semiconductor, Inc.

Inventor： Michael R. Grimes ,  Richard Soja

IPC: G06F21/57 ,  G06F21/34 ,  G06F21/71

CPC classification number: G06F21/575 ,  G06F9/4401 ,  G06F21/34 ,  G06F21/71 ,  G06F2221/033

Abstract: A hardware security module (HSM) transitions a first signal from a first state to a second state and transitions a second signal from a first state to a second state when a request to change boot code is received. In response to receipt of a boot request, the HSM, when the first signal is in the first state and the second signal is in the first state: does not execute the hash function; and maintains the second signal in the first state. An actuator control module, in response to the receipt of the boot request: executes the boot code when the second signal is in the first state; and does not execute the boot code when the second signal is in the second state.

公开(公告)号：US20190264804A1

公开(公告)日：2019-08-29

申请号：US15903645

申请日：2018-02-23

Applicant: GM Global Technology Operations LLC

Inventor： Timothy P. Philippart ,  Robert J. Horner ,  Michael R. Grimes

IPC: F16H61/02 ,  F16H61/00

Abstract: A method for controlling a vehicle transmission includes electrically connecting a Transmission or Powertrain Control Unit (TCU or PCU) to the vehicle transmission, the TCU or PCU controlling operation of the transmission and having switchable power on a high side, and switchable ground on a low side of a plurality of solenoids in a shared functional grouping configuration, proportionally controlling an amount of current through a load such as a solenoid via controlling an amount of time current is being sunk through the solenoid to ground and controlling an amount of time current is provided via an adaptable recirculation path in the TCU or PCU, the recirculation path minimizing current decay when the solenoid is driven in an OFF state. The TCU or PCU having a single hardware layout, but being electronically adaptable to control a plurality of transmission types and solenoid architectures based on any desired functional solenoid grouping.

公开(公告)号：US09829096B2

公开(公告)日：2017-11-28

申请号：US14950505

申请日：2015-11-24

Applicant: GM Global Technology Operations LLC

Inventor： Timothy P. Philippart ,  Michael R. Grimes

IPC: F16H61/00 ,  F16H61/12 ,  F16H61/02

CPC classification number: F16H61/12 ,  F16H61/0204 ,  F16H63/48 ,  F16H2061/1208 ,  F16H2061/1224

Abstract: A system according to the principles of the present disclosure includes a first solenoid control module, a fault diagnostic module, and a second solenoid control module. The first solenoid control module controls a plurality of solenoids to shift gears in a transmission. The fault diagnostic module diagnosis a fault in a transmission control system based on an operating parameter of the transmission control system. The second solenoid control module selectively controls the plurality of solenoids to shift gears in the transmission when a fault in the transmission control system is diagnosed.