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21.发明授权公开(公告)号：US11491970B2
公开(公告)日：2022-11-08
申请号：US16787698
申请日：2020-02-11
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Seyedeh Asal Nahidi , SeyedAlireza Kasaiezadeh Mahabadi , James H. Holbrook , Hualin Tan , Bakhtiar B. Litkouhi
Abstract: A method of controlling stability of a vehicle and a stability control system for the vehicle. A driver command is determined based on driver input data. At least one output command is sent to one or more vehicle systems to control stability of the vehicle based on the driver command. A controller sends the output command based on a control hierarchy that provides an order in which the controller controls body motion of the vehicle, wheel slip of the vehicle, and standard stability of the vehicle to control stability of the vehicle. The order dictates that the controller controls the body motion of the vehicle and the wheel slip of the vehicle before the controller controls the standard stability of the vehicle. A state of one or more of the vehicle systems is controlled based on the sent output command as dictated via the control hierarchy.
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22.发明申请公开(公告)号：US20200317198A1
公开(公告)日：2020-10-08
申请号：US16374160
申请日：2019-04-03
Inventor： Ehsan Hashemi , SeyedAlireza Kasaiezadeh Mahabadi , Amir Khajepour , Xueying Kang , Jin-Jae Chen , Hualin Tan , James H. Holbrook , Bakhtiar B. Litkouhi
IPC: B60W30/18 , B60W40/068 , B60W50/00
Abstract: A method for estimation of a vehicle tire force includes: receiving, by a controller of a vehicle, a measured vehicle acceleration of the vehicle; receiving, by the controller, a measured wheel speed and a measured yaw rate of the vehicle; forming, by the controller, inertia matrices based on an inertia of rotating components of the vehicle; calculating torques at corners of the vehicle using the inertia matrices; estimating tire forces of the vehicle based on the measured vehicle acceleration, the measured wheel speed, and the inertia matrices; and controlling, by the controller, the vehicle, based on the plurality of estimated longitudinal and lateral tire forces.
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23.发明授权公开(公告)号：US10768074B2
公开(公告)日：2020-09-08
申请号：US16116133
申请日：2018-08-29
Applicant: GM Global Technology Operations LLC
Inventor： SeyedAlireza Kasaiezadeh Mahabadi , Seyedeh Asal Nahidi , James H. Holbrook , Jin-Jae Chen , Bakhtiar B. Litkouhi , Hualin Tan
Abstract: A method of controlling an active aerodynamic system of a vehicle includes calculating a first spring force estimated value from at least one sensed vehicle handling characteristic, and a second spring force estimated value from a nominal spring characteristic curve. When a difference between the first and second spring force estimated values is equal to or greater than a spring threshold value, a nominal spring characteristic curve is adjusted to define an adjusted spring characteristic curve, and the active aerodynamic system is controlled using the adjusted spring characteristic curve. When the difference between the first and second spring force estimated values is equal to or greater than the spring threshold value, a signal may also be engaged to provide a service recommendation.
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24.发明申请公开(公告)号：US20200072705A1
公开(公告)日：2020-03-05
申请号：US16116133
申请日：2018-08-29
Applicant: GM Global Technology Operations LLC
Inventor： SeyedAlireza Kasaiezadeh Mahabadi , Seyedeh Asal Nahidi , James H. Holbrook , Jin-Jae Chen , Bakhtiar B. Litkouhi , Hualin Tan
Abstract: A method of controlling an active aerodynamic system of a vehicle includes calculating a first spring force estimated value from at least one sensed vehicle handling characteristic, and a second spring force estimated value from a nominal spring characteristic curve. When a difference between the first and second spring force estimated values is equal to or greater than a spring threshold value, a nominal spring characteristic curve is adjusted to define an adjusted spring characteristic curve, and the active aerodynamic system is controlled using the adjusted spring characteristic curve. When the difference between the first and second spring force estimated values is equal to or greater than the spring threshold value, a signal may also be engaged to provide a service recommendation.
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公开(公告)号：US10071777B2
公开(公告)日：2018-09-11
申请号：US15334700
申请日：2016-10-26
Applicant: GM Global Technology Operations LLC
Inventor： Braden J. Swantick , Edward T. Heil , Kevin Irwin , Jeffrey A. Mosher , Hualin Tan
CPC classification number: B62D37/02 , B62D35/005 , B62D35/007 , B62D35/02 , Y02T10/82 , Y02T10/88
Abstract: An aerodynamic control system of a vehicle includes a utilization module that, based on a longitudinal force on a tire in a longitudinal direction and a latitudinal force on the tire in a latitudinal direction, determines a utilization force on the tire of the vehicle and a direction of the utilization force. A maximum module, based on the direction of the utilization force, determines a maximum force of the tire for maintaining traction between the tire and a road surface contacting the tire. A difference module determines a difference between the utilization force on the tire of the vehicle and the maximum force on the tire. An aerodynamic actuator control module selectively adjusts a position of an aerodynamic actuator of the vehicle based on the difference.
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Patent Agency Ranking
公开(公告)号：US09903945B2
公开(公告)日：2018-02-27
申请号：US14614164
申请日：2015-02-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Xiaofeng F. Song , Hualin Tan , Shuqing Zeng
IPC: G01S13/93 , G01S13/60 , G01S13/86 , G01S13/87 , B60W40/105
CPC classification number: G01S13/60 , B60W40/105 , B60W2050/0031 , B60W2420/52 , B60W2520/14 , B60W2520/28 , B60W2550/10 , G01S13/605 , G01S13/86 , G01S13/874 , G01S13/878 , G01S13/931 , G01S2013/9342 , G01S2013/9346 , G01S2013/9353 , G01S2013/9371
Abstract: Methods and systems for estimating motion of a vehicle are provided. Radar data pertaining to one or more stationary objects in proximity to the vehicle are obtained via one or more radar units of the vehicle. The motion of the vehicle is estimating using the radar data via a processor of the vehicle.
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公开(公告)号：US20170088201A1
公开(公告)日：2017-03-30
申请号：US15212929
申请日：2016-07-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Edward T. Heil , Jason S. Rhee , Hualin Tan , Joshua R. Auden , Jason D. Fahland , Kevin Irwin
CPC classification number: B62D37/02 , B62D35/005 , B62D35/007 , Y02T10/88
Abstract: A vehicle includes a motor for propelling the vehicle and at least one active aerodynamic element configured to generate a variable amount of aerodynamic downforce on the vehicle when the vehicle is in motion. The vehicle also includes at least one driver input sensor configured to detect a driver input and generate a feedforward signal indicative of a desired behavior of the vehicle. The vehicle additionally includes a controller in communication with the at least one driver input sensor and the at least one active aerodynamic element and configured to regulate the at least one active aerodynamic element at least partially in response to the feedforward signal. A method for controlling such an active aerodynamic element and a system for controlling an aerodynamic downforce on a vehicle are also disclosed.
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公开(公告)号：US20250065828A1
公开(公告)日：2025-02-27
申请号：US18455057
申请日：2023-08-24
Applicant: GM Global Technology Operations LLC
Inventor： Ali Reza Armiyoon , Yubiao Zhang , Hualin Tan , SeyedAlireza Kasaiezadeh Mahabadi , Jin-Jae Chen
IPC: B60R16/023 , G01M17/02
Abstract: A method for estimating lateral force includes receiving vehicle data. The vehicle includes a plurality of tires. The method further includes using a bicycle model to determine first lateral forces at each of the plurality of tires of the vehicle, using a double-track model to determine second lateral forces at each of the plurality of tires of the vehicle, fusing the first lateral forces determined using the bicycle model and the second lateral forces using the double-track model to determine third lateral forces at each of the plurality of tires of the vehicle, and controlling an actuator of the vehicle using the third lateral forces at each of the plurality of tires of the vehicle.
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公开(公告)号：US20240025393A1
公开(公告)日：2024-01-25
申请号：US17812818
申请日：2022-07-15
Applicant: GM Global Technology Operations LLC
Inventor： Naser Mehrabi , Nauman Sohani , Mustafa Hakan Turhan , Saurabh Kapoor , Sresht Gurumoorthi Annadevara , SeyedAlireza Kasaiezadeh Mahabadi , Hualin Tan , James H. Holbrook
CPC classification number: B60W30/02 , B60W30/18172 , B60W2720/403 , B60W2720/20 , B60W2510/207 , B60W2540/10
Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to: determine an occurrence of intentional drift event, and in response to determining the occurrence of the intentional drift event, determine a front torque target and a rear torque target.
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公开(公告)号：US11820437B2
公开(公告)日：2023-11-21
申请号：US17103764
申请日：2020-11-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Seyedeh Asal Nahidi , Saurabh Kapoor , SeyedAlireza Kasaiezadeh Mahabadi , Naser Mehrabi , James H. Holbrook , Hualin Tan , Bakhtiar B. Litkouhi
CPC classification number: B62D37/02 , B62D15/021 , B62D35/005 , B62D35/007
Abstract: An aerodynamic deflector on the vehicle is repositionable. An actuator is coupled with the aerodynamic deflector. A controller configured to: detect a performance mode of operation of the vehicle; determine a requested lateral acceleration; calculate a control adjustment of the aerodynamic deflector to generate a downforce to achieve the requested lateral acceleration and maximize lateral grip of the vehicle; and operate the actuator to effect the control adjustment of the aerodynamic deflector to generate the downforce on the vehicle.
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