公开(公告)号：US20180194353A1

公开(公告)日：2018-07-12

申请号：US15402673

申请日：2017-01-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Paul A. Kilmurray ,  Alan J. Houtman ,  Christopher C. Chappell ,  Brandon C. Pennala

IPC: B60W30/18 ,  B60T7/04 ,  B60T8/171 ,  B60T8/172 ,  B60T17/22 ,  B60W10/06 ,  B60W10/18 ,  B60W50/04

CPC classification number: B60W30/18136 ,  B60T7/042 ,  B60T8/171 ,  B60T8/172 ,  B60T8/1755 ,  B60T8/885 ,  B60T17/22 ,  B60T2220/04 ,  B60T2260/04 ,  B60T2260/09 ,  B60T2270/402 ,  B60T2270/404 ,  B60T2270/82 ,  B60W10/06 ,  B60W10/18 ,  B60W50/045 ,  B60W2510/0638 ,  B60W2510/18 ,  B60W2520/12 ,  B60W2710/0644 ,  B60W2710/1005 ,  B60W2710/18 ,  B60W2720/12 ,  B60Y2306/13 ,  B60Y2400/81

Abstract: A vehicle includes a fault-tolerant braking system that controls a brake assembly which is configured to adjust a braking force applied to one or more wheels. The fault-tolerant braking system further includes a brake-by-wire (BBW) system and a vehicle control module (VCM). The BBW system is configured to control the brake assembly in response to a braking request. The VCM is configured to detect a fault of at least one of the brake assembly and the BBW system. In response to detecting the fault, the VCM selectively operates the vehicle between a normal operating mode and at least one degraded driving mode that limits operation of at least one of the vehicle engine and the vehicle transmission compared to the normal operating mode.

公开(公告)号：US20180001875A1

公开(公告)日：2018-01-04

申请号：US15198517

申请日：2016-06-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alan J. Houtman ,  Brandon C. Pennala ,  Paul A. Kilmurray ,  Eric E. Krueger

IPC: B60T7/04 ,  B60T8/40

CPC classification number: B60T7/042 ,  B60T8/3255 ,  B60T8/4081 ,  B60T11/18 ,  B60T2270/82

Abstract: A brake pedal assembly of a brake-by-wire system of a vehicle includes a support structure, a brake pedal pivotally engaged to the support structure at a first pivot axis, and a brake pedal emulator assembly. The brake pedal emulator assembly extends between and is pivotally engaged to the brake pedal and the support structure at respective second and third pivot axis. The brake pedal emulator assembly includes a brake pedal emulator and an adjustment mechanism aligned along a centerline intersecting the second and third pivot axis. The brake pedal emulator is constructed and arranged to displace axially when the brake pedal is actuated, and the adjustment mechanism is constructed and arranged to adjust axial displacement.

公开(公告)号：US10144402B2

公开(公告)日：2018-12-04

申请号：US15250346

申请日：2016-08-29

Applicant: GM Global Technology Operations LLC

Inventor： Brandon C. Pennala ,  Christopher C. Chappell ,  Paul A. Kilmurray ,  Patrick J. Monsere ,  Eric E. Krueger ,  Alan J. Houtman ,  Kevin S. Kidston ,  Michael C. Roberts ,  Steven J. Weber

IPC: B60T13/74 ,  B60T17/18 ,  B60T7/04 ,  B60T13/66

Abstract: A vehicle includes a plurality of brake assemblies and a plurality of electronic brake system (EBS) controllers. The brake assemblies each include an electro-mechanical actuator configured to adjust a torque force applied to a wheel of the vehicle. The EBS controllers are located remotely from one another. Each EBS controller has integrated therein an electronic actuator driver unit that includes an electronic power circuit configured to drive at least one of the electro-mechanical actuators. A first EBS controller is configured to drive a first group of electro-mechanical actuators, and a second EBS controller is configured to drive a second group of electro-mechanical actuators that exclude the electro-mechanical actuators of the first group.

公开(公告)号：US20180093648A1

公开(公告)日：2018-04-05

申请号：US15282145

申请日：2016-09-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brandon C. Pennala ,  Alan J. Houtman ,  Paul A. Kilmurray ,  Christopher C. Chappell ,  Grant A. Browning ,  Robert J. Payton, JR. ,  Jordan M. Krell

IPC: B60T7/06 ,  B60T7/04

CPC classification number: B60T7/06 ,  B60T7/042 ,  B60T2270/82

Abstract: A brake pedal emulator extends and is connected between a support structure and a brake pedal along a centerline. The emulator includes a hydraulic cylinder, a piston head, and a variable flow communicator. An outer casing of the cylinder engages one of the structure and the pedal. The piston head engages the other of the structure and the pedal, and the communicator is carried between the casing and the piston head. A first chamber is defined at least in-part by the casing and a first side of the piston head, and a second chamber is defined at least in-part by the casing and an opposite second side of the piston head. The piston head is in sealed and slides with respect to the casing, and the communicator is adapted to provide fluid communication between the first and second chambers that varies with axial displacement of the piston head.

公开(公告)号：US20180050672A1

公开(公告)日：2018-02-22

申请号：US15239335

申请日：2016-08-17

Applicant: GM Global Technology Operations LLC

Inventor： Brandon C. Pennala ,  Paul A. Kilmurray ,  Christopher C. Chappell

IPC: B60T7/12 ,  G07C5/08 ,  B60T8/17

CPC classification number: B60T7/12 ,  B60T7/042 ,  B60T8/17 ,  B60T13/662 ,  B60T2270/402 ,  B60T2270/403 ,  B60T2270/82 ,  G07C5/0808

Abstract: A vehicle is provided. The vehicle includes a vehicle system. The vehicle system includes a brake-by-wire portion, which also includes a controller. The controller can cause a forced coastdown of the vehicle. The forced coastdown includes performing analyzing conditions of the vehicle system to determine whether the vehicle is in a stable state and to determine an amount of energy available to the vehicle system and automatically applying the forced coastdown when the vehicle is not in the stable state and the amount of energy is less than or equal to a threshold for continued manual operation of the vehicle. The forced coastdown also includes utilizing brake pressure to reduce a speed of the vehicle.

公开(公告)号：US20180043865A1

公开(公告)日：2018-02-15

申请号：US15234164

申请日：2016-08-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Brandon C. Pennala ,  Eric E. Krueger ,  Paul A. Kilmurray

IPC: B60T7/06

CPC classification number: B60T7/06 ,  B60T7/042 ,  B60T8/3255 ,  F16H25/2204 ,  F16H2025/2043

Abstract: A brake pedal assembly of a braking system for a vehicle includes a brake pedal pivotally engaged to a support structure at a first pivot axis. A linkage of the brake pedal assembly is pivotally engaged to the brake pedal at a second pivot axis spaced from the first pivot access by a distance. An adjustment mechanism of the assembly is carried by the brake pedal and is constructed and arranged to alter the distance.

公开(公告)号：US20190300052A1

公开(公告)日：2019-10-03

申请号：US15938165

申请日：2018-03-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alexander M. Allan ,  Addney T. Biery, II ,  Paul A. Kilmurray

IPC: B62D15/02

Abstract: A method for performing operations onboard a vehicle is provided. The method obtains a steering calibration command, by a computing device communicatively coupled to a steering mechanism for the vehicle; initiates execution of the steering calibration command, by the computing device via the steering mechanism; determines at least one maximum steering angle of the vehicle, based on execution of the steering calibration command, the at least one maximum steering angle being associated with a maximum potential position of the steering mechanism; identifies a zero-position center of the steering mechanism, based on the at least one maximum steering angle of the vehicle; stores the zero-position center and the at least one maximum steering angle, by the computing device, for future use; and broadcasts the zero-position center and the at least one maximum steering angle, via a Controller Area Network (CAN) bus of the vehicle, by the communication device.

公开(公告)号：US10086806B2

公开(公告)日：2018-10-02

申请号：US15239335

申请日：2016-08-17

Applicant: GM Global Technology Operations LLC

Inventor： Brandon C. Pennala ,  Paul A. Kilmurray ,  Christopher C. Chappell

IPC: B60T7/12 ,  B60T8/17 ,  G07C5/08 ,  B60T7/04 ,  B60T13/66

Abstract: A vehicle is provided. The vehicle includes a vehicle system. The vehicle system includes a brake-by-wire portion, which also includes a controller. The controller can cause a forced coastdown of the vehicle. The forced coastdown includes performing analyzing conditions of the vehicle system to determine whether the vehicle is in a stable state and to determine an amount of energy available to the vehicle system and automatically applying the forced coastdown when the vehicle is not in the stable state and the amount of energy is less than or equal to a threshold for continued manual operation of the vehicle. The forced coastdown also includes utilizing brake pressure to reduce a speed of the vehicle.

公开(公告)号：US20180056965A1

公开(公告)日：2018-03-01

申请号：US15252749

申请日：2016-08-31

Applicant: GM Global Technology Operations LLC

Inventor： Alan J. Houtman ,  Christopher C. Chappell ,  Kevin S. Kidston ,  Paul A. Kilmurray ,  Eric E. Krueger ,  Patrick J. Monsere ,  Brandon C. Pennala ,  Michael C. Roberts ,  Steven J. Weber

IPC: B60T13/74 ,  B60T17/22 ,  B60T17/18

Abstract: A vehicle includes a plurality of brake assemblies configured to control braking of a respective wheel of the vehicle. The brake assemblies includes a first brake assembly integrated with a smart actuator unit including a first actuator controller and a first electro-mechanical actuator that is configured to adjust a brake force applied to a first wheel coupled to the first brake assembly. A second brake assembly excludes an actuator controller and has installed therein a second electro-mechanical actuator that is configured to adjust a brake force applied to a second wheel coupled to the second brake assembly. At least one electronic actuator driver unit is remotely located from the first and second brake assemblies, and is configured to output a high-power signal that drives the first and second electro-mechanical actuators in response to receiving a digital command signal from the first actuator controller.

公开(公告)号：US20180056961A1

公开(公告)日：2018-03-01

申请号：US15250488

申请日：2016-08-29

Applicant: GM Global Technology Operations LLC

Inventor： Eric E. Krueger ,  Brandon C. Pennala ,  Christopher C. Chappell ,  Alan J. Houtman ,  Kevin S. Kidston ,  Patrick J. Monsere ,  Michael C. Roberts ,  Paul A. Kilmurray ,  Steven J. Weber

IPC: B60T13/74 ,  B60T17/22 ,  B60T17/18

CPC classification number: B60T13/741 ,  B60T7/042 ,  B60T17/18 ,  B60T17/22 ,  B60T2270/40 ,  B60T2270/402 ,  B60T2270/403 ,  B60T2270/404 ,  B60T2270/414 ,  B60T2270/415

Abstract: A vehicle includes a plurality of electronic brake system (EBS) controllers configured to detect at least one braking event, and a plurality of brake assemblies. Each brake assembly is coupled to a respective wheel of the vehicle and includes an enhanced smart actuator. The enhanced smart actuator further includes an electro-mechanical actuator, and at least one power circuit. The electro-mechanical actuator is configured to adjust a torque force applied to the respective wheel. The at least one electronic power circuit is configured to output a high-frequency switched high-power current drive signal that drives the electro-mechanical actuator. The EBS controllers control a first group of enhanced smart actuators independently from a second group of enhanced smart actuators that exclude the enhanced smart actuators of the first group.