-
公开(公告)号：US20210284199A1
公开(公告)日：2021-09-16
申请号：US16814146
申请日：2020-03-10
Applicant: GM Global Technology Operations LLC
Inventor： Reza Zarringhalam , Mohammadali Shahriari , Amir Takhmar , Zhi Li
IPC: B60W60/00
Abstract: A system to enable an automobile vehicle automated driving control includes a quality index of an automated driving control system prior to enablement of an automated driving control function of an automobile vehicle. An adaptive forward propagation horizon and a prediction horizon for assessment of the quality index are computed. Vehicle states and road geometry are propagated over the adaptive forward propagation horizon, and the quality index is assessed based on forward propagated states over the prediction horizon. A first signal permits actuation of the automated driving control function of the automobile vehicle and a second signal precludes actuation of the automated driving control function. One of the first signal or the second signal is elected based on the results of assessing a quality control index trajectory over the adaptive forward propagation horizon.
-
2.发明授权公开(公告)号：US11858549B2
公开(公告)日：2024-01-02
申请号：US17093023
申请日：2020-11-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Amir Takhmar , Joshua M. Levin , Jimmy Zhong Yan Lu , Jayant Sachdev , Reza Zarringhalam
IPC: B62D15/02
CPC classification number: B62D15/025
Abstract: A method for generating a steering command for controlling a vehicle is provided. The method includes: generating a first vehicle steering control torque command by a steering controller in the vehicle while the vehicle is driven in a semi-autonomous mode; generating an impedance-adjusted vehicle steering angle command based on a first vehicle steering angle command that was generated to compensate for a trajectory error, and a measured driver steering torque command generated in response to navigation of the vehicle using a steering wheel; generating an impedance-adjusted vehicle steering control torque command by the steering controller in the vehicle based on a difference between the impedance-adjusted vehicle steering angle command and a measured vehicle steering angle command; generating a steering command by a power steering system in the vehicle based on the measured driver steering torque command and the impedance-adjusted vehicle steering control torque command; and operating the vehicle in accordance with the steering command.
-
公开(公告)号：US11814098B2
公开(公告)日：2023-11-14
申请号：US17198851
申请日：2021-03-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mohammadali Shahriari , Amir Takhmar , Reza Zarringhalam , Klaus Trangbaek
CPC classification number: B62D13/025 , B60D1/248 , B62D5/0463 , B62D15/025 , B60D1/62 , B60W30/12
Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for adaptive control of electronic power steering (EPS) including sending, a torque control to an EPS that is based on input control signals from a vehicle trajectory control unit and a steering assistive control unit when the vehicle is coupled to a trailer engaging in a trailering action; configuring the steering assistive control unit, to generate a control signal based on an algorithm using an adaptive factor that models steering dynamics impacted by the trailer while engaging in the trailering action and modeling by the steering assistive control unit, an adaptive damping factor modeled on a tongue weight of a trailer coupled to a hitch of the vehicle wherein the hitch reduces a force applied to a vehicle front axle.
-
公开(公告)号：US11634128B2
公开(公告)日：2023-04-25
申请号：US17195347
申请日：2021-03-08
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Reza Zarringhalam , Amir Takhmar , Carlos E. Arreaza , Shiv G. Patel , Mohammed Raju Hossain , Dorothy Lui , Kibrom Yohannes
Abstract: Methods and systems are provided for a vehicle towing a trailer within a lane of a roadway that include: reconstructing, via a processor onboard the vehicle, lane markings for the trailer using lane markers as sensed via camera data; transforming the reconstructed lane markings, using additional sensor data, to a perspective of the trailer; localizing the trailer within the transformed lane markers using historical camera lane marking information, articulated vehicle dynamics, hitch angle, and trailer dimensions, without needing to add additional trailer lane sensing cameras to the trailer; calculating a time to lane crossing (T-TTLC) value for the trailer and vehicle; generating candidate blended paths of the trailer and the vehicle with a centerline of the lane of the roadway; and controlling operation of the vehicle, the trailer, or both, via instructions provided by the processor to keep the vehicle, the trailer, or both within a lane of travel.
-
公开(公告)号：US11420638B2
公开(公告)日：2022-08-23
申请号：US16738453
申请日：2020-01-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mohammadali Shahriari , Amir Takhmar , Reza Zarringhalam
Abstract: A vehicle and a system and method of operating a vehicle. The system includes a processor. The processor learns a driver's behavior of a driver of the vehicle as the driver navigates a road segment, creates a behavior policy based on the driver's behavior and a threshold associated with the road segment, and controls the vehicle to navigate the road segment using the behavior policy.
-
Patent Agency Ranking
公开(公告)号：US20190389470A1
公开(公告)日：2019-12-26
申请号：US16015532
申请日：2018-06-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Reza Zarringhalam , Mohammadali Shahriari , Mohammed Raju Hossain , Jayant Sachdev , Amir Takhmar
IPC: B60W30/18
Abstract: An automotive vehicle includes at least one sensor configured to detect a lane marking proximate the vehicle, and to detect velocity, acceleration, and yaw rate of the vehicle. The vehicle also includes a controller in communication with the at least one sensor and configured to selectively control a steering intervention system in a first mode and a second mode. The controller is configured to calculate a plurality of lane departure estimations at a corresponding plurality of time instances, arbitrate among the plurality of lane departure estimations to calculate a predictive time to lane departure, calculate a lane departure confidence value associated with the predictive time to lane departure, and, in response to the confidence value exceeding a first threshold and the predictive time to lane departure being below a second threshold, control the steering intervention system in the second mode.
-
7.发明授权公开(公告)号：US11794751B2
公开(公告)日：2023-10-24
申请号：US17186649
申请日：2021-02-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Reza Zarringhalam , Yongkyun Shin , Mohammadali Shahriari , Avshalom Suissa , Kevin A. O'Dea , Amir Takhmar , Mohammed Raju Hossain
IPC: B60W40/076 , B60W50/00 , B60W40/072
CPC classification number: B60W40/076 , B60W40/072 , B60W50/0097 , B60W2420/42 , B60W2552/15 , B60W2556/40
Abstract: In exemplary embodiments, methods, systems, and vehicles are provided that include: one or more sensors disposed onboard a vehicle and configured to at least facilitate obtaining sensor data for the vehicle; one or more location systems configured to at least facilitate obtaining location data pertaining to a location of the vehicle; a computer memory configured to store map data pertaining to a path corresponding to the location; and a processor disposed onboard the vehicle and configured to at least facilitate: generating an elevation profile along the path using the sensor data and the map data; and providing instructions for controlling the vehicle using the elevation profile.
-
公开(公告)号：US11738806B2
公开(公告)日：2023-08-29
申请号：US17215524
申请日：2021-03-29
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Reza Zarringhalam , Mohammadali Shahriari , Amir Takhmar , Paul A. Adam , Namal P. Kumara
CPC classification number: B62D15/0255 , B60K35/00 , B60K2370/178
Abstract: Systems and methods for smoothing automated lane change (ALC) operations. A mission planner, upon receipt of an ALC request, sends a ALC heads up signal to a lateral control. The mission planner then begins confidence building operations, for a preprogrammed duration of time, and awaits an ALC ready signal from the lateral control. The lateral control, upon receipt of the ALC heads up, calculates an index of readiness, RALC, as a function of the requested ALC, a current trajectory, and a lane centering control path. When RALC is less than or equal to a readiness threshold, Rt, the lateral control sends the ALC ready signal. When RALC is greater than Rt, the lateral control generates a steering correction and applies the steering correction to reduce the RALC and thereby stabilize the vehicle and send the ALC ready signal. Upon receiving the ALC ready signal, the ALC operation is executed.
-
公开(公告)号：US11608089B2
公开(公告)日：2023-03-21
申请号：US17092790
申请日：2020-11-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Amir Takhmar , Jayant Sachdev , Mohammed Raju Hossain , Nathan Fujimoto , Joshua M. Levin
Abstract: The present application generally relates to a method and apparatus for controlling an autonomous vehicle. In particular, the method and apparatus are operative for detecting, by a sensor, an object within a first vehicle path, generating, by a processor, a second vehicle path in response to either the detection of the object such that the second vehicle path avoids the object, or a user initiated trajectory shift, generating, by the processor, an initial steering torque in response to the second vehicle path, performing, by the processor, an adaptation on the initial steering torque to generate an adapted steering torque in response to the initial steering torque exceeding a torque rate limit, and controlling, by a vehicle controller a host vehicle steering system to follow the second vehicle signal path in response to the adapted steering torque.
-
公开(公告)号：US20220289292A1
公开(公告)日：2022-09-15
申请号：US17198851
申请日：2021-03-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mohammadali Shahriari , Amir Takhmar , Reza Zarringhalam , Klaus Trangbaek
Abstract: In various embodiments, methods, systems, and vehicle apparatuses are provided. A method for adaptive control of electronic power steering (EPS) including sending, a torque control to an EPS that is based on input control signals from a vehicle trajectory control unit and a steering assistive control unit when the vehicle is coupled to a trailer engaging in a trailering action; configuring the steering assistive control unit, to generate a control signal based on an algorithm using an adaptive factor that models steering dynamics impacted by the trailer while engaging in the trailering action and modeling by the steering assistive control unit, an adaptive damping factor modeled on a tongue weight of a trailer coupled to a hitch of the vehicle wherein the hitch reduces a force applied to a vehicle front axle.
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.017 seconds)
