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公开(公告)号：US20180362022A1
公开(公告)日：2018-12-20
申请号：US15622599
申请日：2017-06-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SEYEDALIREZA KASAIEZADEH MAHABADI , SHIH-KEN CHEN , BAKHTIAR B. LITKOUHI , NIKOLAI K. MOSHCHUK , PATRICK J. MONSERE , EDWARD T. HEIL
IPC: B60W30/045 , B60W10/04 , B60W10/20 , B60W30/08 , B60W50/029 , B60W10/18 , B60W40/101 , B60W40/105 , B60W40/114
Abstract: A method and system for controlling a vehicle to improve vehicle dynamics are provided. The method includes receiving data from a plurality of sensors which monitor vehicle dynamics by monitoring at least wheel and steering movements associated with a vehicle system used in controlling vehicle dynamics by control outputs from a holistic vehicle control system. Then, estimating states of the vehicle from computations of longitudinal and latitudinal velocities, tire slip ratios, clutch torque, axle torque, brake torque, and slip angles derived from the data sensed by the sensors from the wheel and steering movements. Finally, formulating a model of vehicle dynamics by using estimations of vehicle states with a target function to provide analytical data to enable the model of vehicle dynamics to be optimized and for using the data associated with the model which has been optimized to change control outputs to improve in real-time the vehicle dynamics.
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公开(公告)号：US20180201243A1
公开(公告)日：2018-07-19
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
CPC classification number: B60T8/321 , B60T8/1701 , B60T8/172 , B60T8/18 , B60T13/66 , B60T17/22 , B60T2270/86
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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Patent Agency Ranking
公开(公告)号：US20180356819A1
公开(公告)日：2018-12-13
申请号：US15621221
申请日：2017-06-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： SEYEDALIREZA KASAIEZADEH MAHABADI , SAYYED ROUHOLLAH JAFARI TAFTI , EDWARD T. HEIL , NIKOLAI K. MOSHCHUK , BAKHTIAR B. LITKOUHI
Abstract: A method is provided for autonomously operating a vehicle. The method includes receiving, at a processor, at least vehicle state data and vehicle object environment data; generating, with the processor, an optimal path for the vehicle with a cost function based on the vehicle state data and the vehicle object environment data; identifying, with the processor, at least one critical condition constraint based on at least one of the vehicle or vehicle environment; modifying, with the processor, at least a first portion of the optimal path based on the at least one critical condition constraint to result in a short-range trajectory portion; generating a resulting trajectory with the short-range trajectory portion; and implementing the resulting trajectory on the vehicle.
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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：US20180265068A1
公开(公告)日：2018-09-20
申请号：US15463933
申请日：2017-03-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： EDWARD T. HEIL , ERIC E. KRUEGER , JOSHUA R. AUDEN , ROBERT L. NISONGER , PATRICK J. MONSERE , BRANDON C. PENNALA , CONSTANDI J. SHAMI
CPC classification number: B60T17/222 , B60T8/172 , B60T11/103 , B60T13/662 , B60T17/221 , B60T17/225
Abstract: Systems and methods are provided testing a vehicle braking system. The method includes determining a nominal brake system parameter of the brake system during a braking operation. A first testing brake operation is performed and a first brake system parameter is determined based on the first testing brake operation. A tested brake system parameter is determined based on the first testing system parameter and the tested brake system parameter is compared to the nominal brake system parameter. A brake system compliance suspicion value of the vehicle braking system is then set based on the comparison.
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公开(公告)号：US20180244271A1
公开(公告)日：2018-08-30
申请号：US15443995
申请日：2017-02-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： ERIC E. KRUEGER , ROBERT L. NISONGER , EDWARD T. HEIL , BRANDON C. PENNALA , PATRICK J. MONSERE
CPC classification number: B60W30/146 , B60W2520/12 , B60W2530/20 , B60W2720/10 , G05D1/0088
Abstract: Systems and method are provided for controlling a vehicle. In one embodiment, a method includes: receiving, by a processor, at least one of state health and performance information associated with at least one vehicle actuator; processing, by the processor, the state of health and performance information to determine an acceleration value; and controlling the vehicle based on the acceleration value.
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公开(公告)号：US20180022403A1
公开(公告)日：2018-01-25
申请号：US15215473
申请日：2016-07-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： JASON D. FAHLAND , JOSHUA R. AUDEN , EDWARD T. HEIL , DAVID DOMINGUEZ
CPC classification number: B62D37/02 , B60W40/12 , B60W40/13 , B60W2300/18 , B60W2300/28 , B60W2510/22 , B60W2530/20 , B60W2550/142 , B60Y2200/114 , B60Y2300/02 , B62D35/005 , B62D35/02 , Y02T10/82 , Y02T10/88
Abstract: Methods, systems, and vehicles are provided for controlling downforce for vehicles. In accordance with one embodiment, a vehicle includes one or more downforce elements, one or more sensors, and a processor. The one or more sensors are configured to measure one or more parameter values for the vehicle during operation of the vehicle. The processor is coupled to the downforce elements and to the one or more sensors. The processor is configured to at least facilitate adjusting a downforce for the vehicle, during operation of the vehicle, based on the one or more parameter values, by providing instructions for controlling the one or more downforce elements.
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