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公开(公告)号：US10239531B2
公开(公告)日：2019-03-26
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 , B60T8/1755 , B60T8/88
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.
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公开(公告)号：US10053061B2
公开(公告)日：2018-08-21
申请号：US15250041
申请日：2016-08-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brandon C. Pennala , Christopher A. Hammond
CPC classification number: B60T7/06 , B60T7/042 , B60T8/3255 , B60T8/4086 , G05G1/30
Abstract: A brake pedal emulator extends and connects between a support structure and a brake pedal pivotally engaged to the support structure at an axis. The brake pedal emulator includes a rotational damping device operatively connected to the brake pedal for driven rotation as the brake pedal moves about the axis.
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公开(公告)号：US20180217050A1
公开(公告)日：2018-08-02
申请号：US15420004
申请日：2017-01-30
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： EDWARD T. HEIL , ERIC E. KRUEGER , ROBERT L. NISONGER , JOSHUA R. AUDEN , PATRICK J. MONSERE , Brandon C. Pennala , Constandi J. Shami
CPC classification number: G01N19/02 , B60T8/172 , B60T2210/12
Abstract: A method for testing to determine a coefficient of friction between a vehicle wheel and a surface with which the vehicle wheel is in contact (“surface mu”) includes the steps of calculating a surface mu confidence level based upon an evaluation of a locale of interest, an evaluation of visual cues sensed by the vehicle at the locale of interest, and/or an evaluation of vehicle signals at the locale of interest and scheduling the vehicle to perform active dynamic testing at the locale of interest. The method further includes the steps of performing the active dynamic testing, wherein the testing comprises commanding the vehicle to perform one or more of propulsion torqueing, regenerative torqueing, or brake torqueing of at least one wheel of the vehicle, receiving a measured parameter from the at least one wheel during said testing, and calculating a surface mu value for the locale of interest.
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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
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.
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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
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.
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Patent Agency Ranking
公开(公告)号：US20200339134A1
公开(公告)日：2020-10-29
申请号：US16391455
申请日：2019-04-23
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brandon C. Pennala , Hualin Tan , Daryl A. Wilson
IPC: B60W40/114 , B60W40/13
Abstract: The present application generally relates to a method and apparatus for generating an action policy for controlling an autonomous vehicle. In particular, the method and apparatus include a memory operative to store a map data, a sensor operative to provide a location, a yaw rate sensor operative to measure a yaw rate, a processor for receiving the yaw rate, and a processor for determining a yaw rate calibration bias in response to the yaw rate, the location, and the map data, and a vehicle controller for controlling a vehicle in response to the yaw rate calibration bias.
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公开(公告)号：US10377358B2
公开(公告)日：2019-08-13
申请号：US15410598
申请日：2017-01-19
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Brandon C. Pennala , Eric E. Krueger , Patrick J. Monsere , Edward T. Heil , Robert L. Nisonger , Constandi J. Shami , Alan J. Houtman
Abstract: Systems and methods are provided for controlling a vehicle using a specific torque of a brake system. In one embodiment, a method of using a specific torque of a brake system for a vehicle includes: determining a brake pressure of the brake system during a braking operation; determining a deceleration of the vehicle during the braking operation; determining a vehicle mass and a wheel radius; estimating a specific torque of the brake system based on the brake pressure and the deceleration; and operating the vehicle based on the specific torque.
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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
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.
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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
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.
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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
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.
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