公开(公告)号：US10370042B2

公开(公告)日：2019-08-06

申请号：US15666611

申请日：2017-08-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Samantha J. Bray ,  Joshua R. Auden ,  Jason D. Fahland ,  Timothy D. Demetrio ,  Caleb Potvin ,  Rebecca Tjoelker

IPC: B62D35/00 ,  B60T17/22 ,  B62D35/02 ,  G01D5/00 ,  B60T1/16

Abstract: An adjustable aerodynamic assembly includes a support structure and a blocking member supported by the support structure. The blocking member is movable between an extended position in which the blocking member is disposed transverse to the support structure to interact with an airflow and a retracted position in which the blocking member retracts to minimize interaction with the airflow. The adjustable aerodynamic assembly also includes an actuator coupled to the blocking member and configured to move the blocking member to the extended and retracted positions, and a detection member coupled to the blocking member and configured to determine whether a surface of the blocking member is detected. A method of monitoring the adjustable aerodynamic assembly includes determining whether the surface of the blocking member is detected via the detection member. The method also includes selectively activating the actuator to move the blocking member to the extended and retracted positions.

公开(公告)号：US10336317B2

公开(公告)日：2019-07-02

申请号：US15215463

申请日：2016-07-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Joshua R. Auden ,  David Dominguez ,  Samantha J. Bray ,  Eric E. Krueger

IPC: B60W10/04 ,  B60W10/18 ,  B60W10/30 ,  B60W30/02 ,  B62D37/02

Abstract: Methods, systems, and vehicles are provided for controlling lift for vehicles. In accordance with one embodiment, a vehicle includes a body, one or more sensors, and a processor. The one or more sensors are configured to measure values pertaining to one or more parameter values for a vehicle during operation of the vehicle. The processor is coupled to the one or more sensors, and is configured to at least facilitate determining whether an unplanned lift of the body of the vehicle is likely using the parameters, and implementing one or more control measures when it is determined that the unplanned lift of the body of the vehicle is likely.

公开(公告)号：US20190092403A1

公开(公告)日：2019-03-28

申请号：US15714072

申请日：2017-09-25

Applicant: GM Global Technology Operations LLC

Inventor： Samantha J. Bray ,  Timothy D. Demetrio ,  Philip C. Lundberg ,  Joshua R. Auden ,  Jason D. Fahland

IPC: B62D37/02 ,  B62D35/00 ,  F15D1/10 ,  G05B15/02

Abstract: Disclosed are downforce feedback systems for active aerodynamic devices, methods for making/using such systems, and vehicles equipped with a closed-loop downforce feedback system to govern operation of the vehicle's active aero device(s). A feedback control system for operating an active aerodynamic device of a motor vehicle includes one or more pressure sensors for detecting fluid pressures in one or more pneumatic or hydraulic actuators for moving the active aero device. A vehicle controller receives fluid pressure signals from these sensor(s), and calculates an actual downforce value from these signal(s). The controller retrieves a calibrated downforce value from mapped vehicle downforce data stored in memory, and determines if the actual downforce value differs from the calibrated value. If so, the controller determines a target position for a target downforce value for a current vehicle operating condition, and commands the actuator(s) to move the active aero device to the target position.

公开(公告)号：US20190061843A1

公开(公告)日：2019-02-28

申请号：US15685682

申请日：2017-08-24

Applicant: GM Global Technology Operations LLC

Inventor： Jason D. Fahland ,  Joshua R. Auden ,  Timothy D. Demetrio

IPC: B62D37/02 ,  B62D35/00 ,  G05D3/12

Abstract: A vehicle includes a vehicle body arranged along a longitudinal body axis in a body plane and having a first vehicle body end configured to face oncoming ambient airflow when the vehicle is in motion relative to a road surface. The vehicle also includes an active hybrid spoiler assembly mounted to the vehicle body and configured to control a movement of the ambient airflow along the longitudinal body axis. The spoiler assembly includes at least one stanchion mounted to the vehicle body, and first and second wing-shaped side-sections moveably connected to the stanchion(s). The spoiler assembly further includes a mechanism configured to selectively and individually shift each of the first wing-shaped side-section and the second wing-shaped side-section relative to the at least one stanchion to thereby adjust a magnitude of the aerodynamic downforce generated by each of the first wing-shaped side-section and the second wing-shaped side-section on the vehicle body.

公开(公告)号：US09902438B2

公开(公告)日：2018-02-27

申请号：US14954229

申请日：2015-11-30

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Samantha J. Bray ,  Joshua R. Auden ,  Jason D. Fahland ,  David Dominguez

IPC: B62D35/00 ,  B62D37/02

CPC classification number: B62D35/007 ,  B62D35/005 ,  B62D37/02

Abstract: A system is configured to control aerodynamics of a vehicle. The vehicle includes a vehicle body arranged along a longitudinal axis with a first vehicle body end configured to face incident ambient airflow. The system includes an aerodynamic-aid element mounted to the vehicle body and configured to generate a downforce thereon via controlling the incident ambient airflow. The system also includes an adjustable flap arranged at the aerodynamic-aid element. The adjustable flap is configured to shift relative to the aerodynamic-aid element and thereby control movement of the incident ambient airflow relative to the aerodynamic-aid element. The system additionally includes a mechanism configured to vary position of the adjustable flap relative to the aerodynamic-aid element and thereby vary a magnitude of downforce generated by the aerodynamic-aid element.

公开(公告)号：US09827957B2

公开(公告)日：2017-11-28

申请号：US15216230

申请日：2016-07-21

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Edward T. Heil ,  Joshua R. Auden ,  Hualin Tan ,  David Dominguez

IPC: B60T8/17 ,  B62D35/00 ,  B62D37/02 ,  B60T8/1755 ,  B60T8/175 ,  B60T8/1761 ,  B60T8/1766 ,  B60T8/26 ,  B60T1/16

CPC classification number: B60T8/17551 ,  B60T1/16 ,  B60T8/175 ,  B60T8/17554 ,  B60T8/17616 ,  B60T8/1766 ,  B60T8/26 ,  B60T2201/16 ,  B62D35/005 ,  B62D35/007 ,  B62D37/02 ,  Y02T10/88

Abstract: A vehicle employing an active aerodynamic control system is described. A method for controlling the active aerodynamic control system includes determining a target acceleration downforce associated with an acceleration request and vehicle speed, determining a target braking downforce associated with a braking request and vehicle speed, and determining a target cornering downforce associated with a cornering request and vehicle speed. A maximum downforce request and a second greatest downforce request of the target acceleration downforce, the target braking downforce, and the target cornering downforce are determined. A preferred front/rear distribution of downforce is determined based upon the maximum downforce request and the second greatest downforce request. The active aerodynamic control system is controlled based upon the preferred front/rear distribution of downforce and the maximum downforce request.

公开(公告)号：US09669885B1

公开(公告)日：2017-06-06

申请号：US14959917

申请日：2015-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Joshua R. Auden ,  David Dominguez

IPC: B62D35/00 ,  B62D37/02

CPC classification number: B62D37/02 ,  B62D35/005

Abstract: A system is disclosed for controlling an incident ambient airflow in a vehicle. The vehicle includes a vehicle body with a first vehicle body end configured to face the incident ambient airflow when the vehicle is in motion relative to a road surface. The system includes a duct providing a conduit for the incident airflow into the vehicle body. The system also includes a shutter assembly configured to control the airflow through the duct and thereby regulate a downforce acting on the first vehicle body end. The shutter assembly may include an adjustable louver, a mechanism configured to select the position for the louver between and inclusive of fully opened and fully closed, and a controller configured to regulate the mechanism. The vehicle may also have a heat-absorbing subassembly, and the duct can provide a conduit for the incident airflow to the heat-absorbing subassembly for cooling thereof.

公开(公告)号：US11447193B2

公开(公告)日：2022-09-20

申请号：US16436232

申请日：2019-06-10

Applicant: GM Global Technology Operations LLC

Inventor： Dale Cattell ,  Jason D. Fahland

IPC: B62D37/02 ,  B62D35/00 ,  B62D35/02 ,  B62D25/12

Abstract: A system is configured to mitigate hydroplaning of a vehicle having an adjustable aerodynamic-aid element configured to generate a selectable downforce on the vehicle body in response to a movement of ambient airflow relative thereto. The system includes a mechanism for varying a position of the adjustable aerodynamic-aid element relative to the body to regulate the downforce and sensor(s) configured to detect a vehicle dynamic parameter indicative of hydroplaning of the vehicle. The system additionally includes an electronic controller in communication with the sensor(s) and programmed to regulate the mechanism. The controller is configured to determine a target position for the adjustable aerodynamic-aid element in response to signal(s) from the sensor(s). The controller is also configured to set the adjustable aerodynamic-aid element to the target position via the mechanism to regulate the downforce on the vehicle body and mitigate the hydroplaning of the vehicle.

公开(公告)号：US10696336B2

公开(公告)日：2020-06-30

申请号：US15785559

申请日：2017-10-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Joshua R. Auden

IPC: B62D37/02 ,  B62D35/00 ,  F16F9/53 ,  F16F15/027

Abstract: An automotive vehicle includes a body having an exterior surface and an aerodynamic member movably coupled to the exterior surface. The aerodynamic member has a first position with respect to the exterior surface and a second position with respect to the exterior surface. The first position presents a distinct aerodynamic profile from the second position. The vehicle additionally includes an actuator coupled to the aerodynamic member and configured to actuate the aerodynamic member between the first position and the second position. The vehicle further includes a damper coupled to the aerodynamic member. The damper is provided with magnetorheological fluid.

公开(公告)号：US20190111981A1

公开(公告)日：2019-04-18

申请号：US15785559

申请日：2017-10-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Joshua R. Auden

IPC: B62D37/02 ,  B62D35/00 ,  F16F9/53 ,  F16F15/027

Abstract: An automotive vehicle includes a body having an exterior surface and an aerodynamic member movably coupled to the exterior surface. The aerodynamic member has a first position with respect to the exterior surface and a second position with respect to the exterior surface. The first position presents a distinct aerodynamic profile from the second position. The vehicle additionally includes an actuator coupled to the aerodynamic member and configured to actuate the aerodynamic member between the first position and the second position. The vehicle further includes a damper coupled to the aerodynamic member. The damper is provided with magnetorheological fluid.