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公开(公告)号：US20230103248A1
公开(公告)日：2023-03-30
申请号：US17487261
申请日：2021-09-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Joseph R. Abrash , Paul A. Adam , Robert C. Baraszu , Dmitriy Feldman , Yadollah Sabri
Abstract: A method for controlling operation of a motor vehicle includes an electronic controller receiving, e.g., from a vehicle-mounted sensor array, sensor data with dynamics information for a target vehicle and, using the received sensor data, predicting a lane assignment for the target vehicle on a road segment proximate the host vehicle. The electronic controller also receives map data with roadway information for the road segment; the controller fuses the sensor and map data to construct a polynomial overlay for a host lane of the road segment across which travels the host vehicle. A piecewise linearized road map of the host lane is constructed and combined with the predicted lane assignment and polynomial overlay to calculate a lane assignment for the target vehicle. The controller then transmits one or more command signals to a resident vehicle system to execute one or more control operations using the target vehicle's calculated lane assignment.
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公开(公告)号：US10131360B2
公开(公告)日：2018-11-20
申请号：US15236106
申请日：2016-08-12
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Yadollah Sabri , Simon E. Zimmerman , Yingmei Si , Steven T. Schweitzer , Qingrong Zhao , Qi Zhang , Nikolai K. Moshchuk
IPC: B60W40/06 , B60W40/068 , B60W40/105 , B60W40/114 , B60W50/14 , G05D1/00
Abstract: Methods and systems are provided for determining a road surface friction coefficient and controlling a feature of the vehicle based thereon. In one embodiment, a method includes: receiving signals from an electronic power steering system and an inertial measurement unit; estimating parameters associated with an electronic power steering system model using an iterative optimization method; calculating an electronic power steering system variable using the electronic power steering system model, the estimated parameters and one or more of the received signals; determining whether the calculated electronic power steering system variable satisfies a fitness criterion; and when the calculated electronic power steering system variable does satisfy the fitness criterion, determining a road surface friction coefficient based on at least one of the estimated parameters.
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公开(公告)号：US12065170B2
公开(公告)日：2024-08-20
申请号：US17487261
申请日：2021-09-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Joseph R. Abrash , Paul A. Adam , Robert C. Baraszu , Dmitriy Feldman , Yadollah Sabri
CPC classification number: B60W60/0027 , B60W10/04 , B60W10/18 , B60W10/20 , B60W50/0098 , G01C21/32 , B60W2050/0052 , B60W2554/4041 , B60W2554/4042 , B60W2554/4043 , B60W2554/801 , B60W2554/802 , B60W2556/50 , B60W2710/18 , B60W2710/20 , B60W2720/106 , B60W2720/125
Abstract: A method for controlling operation of a motor vehicle includes an electronic controller receiving, e.g., from a vehicle-mounted sensor array, sensor data with dynamics information for a target vehicle and, using the received sensor data, predicting a lane assignment for the target vehicle on a road segment proximate the host vehicle. The electronic controller also receives map data with roadway information for the road segment; the controller fuses the sensor and map data to construct a polynomial overlay for a host lane of the road segment across which travels the host vehicle. A piecewise linearized road map of the host lane is constructed and combined with the predicted lane assignment and polynomial overlay to calculate a lane assignment for the target vehicle. The controller then transmits one or more command signals to a resident vehicle system to execute one or more control operations using the target vehicle's calculated lane assignment.
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公开(公告)号：US10046770B1
公开(公告)日：2018-08-14
申请号：US15482977
申请日：2017-04-10
Applicant: GM Global Technology Operations LLC
Inventor： Yadollah Sabri
IPC: A01B69/00 , B60W40/068 , B60W10/20 , B60W10/18 , B60W10/04 , B60W40/107 , B60W40/109 , B60W40/114
Abstract: Systems and methods for independently estimating a road surface friction coefficient value and a vehicular lateral velocity value are provided. In one example, the system includes: a self-aligning torque coefficient estimating module configured to obtain sensor signals from an electronic power steering (EPS) system and an inertial measurement unit and estimate a first self-aligning torque coefficient value based on the sensor signals using a recursive least square algorithm; a road surface friction coefficient value estimating module configured to obtain the estimated first self-aligning torque coefficient value and estimate a first road surface friction coefficient value based on the estimated first self-aligning torque coefficient value; and a feature control module configured to generate one or more control signals configured to control features of a vehicle based on the estimated first road surface friction coefficient value.
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