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1.发明授权公开(公告)号：US10604197B2
公开(公告)日：2020-03-31
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: B60R22/00 , E05F15/00 , G05D1/00 , G05D3/00 , G06F7/00 , G06F17/00 , B62D37/02 , B62D35/00 , G05B15/02 , F15D1/10 , G05D7/01
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.
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公开(公告)号：US10421505B2
公开(公告)日：2019-09-24
申请号：US15665752
申请日：2017-08-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rebecca Tjoelker , Timothy D. Demetrio , Caleb Potvin
Abstract: An automotive vehicle according to the present disclosure includes a body having a lower surface with a plurality of vehicle wheels having respective contact surfaces for contacting a driving surface. An underbody space is thereby defined between the contact surfaces and the lower surface of the body. The vehicle additionally includes a movable air deflector coupled to the lower surface and projecting into the underbody space. The air deflector has a first position with a first blockage profile and a second position with a second blockage profile. The vehicle additionally includes an actuator coupled to the air deflector, which is configured to drive the air deflector between the first position and the second position. The vehicle further includes a controller configured to, in response to satisfaction of an operating condition, control the actuator to move the air deflector from the first position to the second position.
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公开(公告)号：US10457340B2
公开(公告)日：2019-10-29
申请号：US15710198
申请日：2017-09-20
Applicant: GM Global Technology Operations LLC
Inventor： Caleb Potvin , Timothy D. Demetrio
Abstract: An adjustable body skirting assembly and a vehicle that includes the assembly. The assembly includes a support structure and a skirt member. The support structure includes a side surface and a bottom surface, and the skirt member is supported by the support structure. The skirt member is movable between a deployed position in which the skirt member is disposed transverse to the bottom surface of the support structure such that the skirt member and the side surface cooperate with each other to define a wall configured to redirect an airflow away from the bottom surface, and a retracted position in which the skirt member retracts relative to the side surface such that the wall is removed which allows the airflow to interact with the bottom surface. The assembly includes an actuator coupled to the skirt member and configured to move the skirt member to the deployed and retracted positions.
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公开(公告)号：US20190039663A1
公开(公告)日：2019-02-07
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
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.
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公开(公告)号：US20200172058A1
公开(公告)日：2020-06-04
申请号：US16208992
申请日：2018-12-04
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Timothy D. Demetrio , Joshua R. Auden , John W. Pennala
IPC: B60T5/00 , F16D65/847 , B62D35/02
Abstract: An exemplary method for controlling a vehicle includes receiving, by a vehicle controller, sensor data representing a first operating condition of the vehicle from at least one sensor, determining, by the vehicle controller, a temperature of a vehicle braking system of the vehicle, determining, by the vehicle controller, if the temperature of the vehicle braking system exceeds a temperature threshold, and if the temperature of the vehicle braking system exceeds the temperature threshold, generating, by the vehicle controller, a control signal to move a moveable underbody feature from a first position to a second position.
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Patent Agency Ranking
公开(公告)号：US20190031252A1
公开(公告)日：2019-01-31
申请号：US15659245
申请日：2017-07-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Timothy D. Demetrio , Caleb Potvin , Rebecca Tjoelker
Abstract: A system is configured to control aerodynamics of a vehicle. The vehicle includes a vehicle body having a first end facing an ambient airflow when the vehicle is in motion relative to a road surface and a second end arranged opposite the first end. The system includes an air deflector moveably mounted to the vehicle body. The system also includes a mechanism configured to selectively vary a height of the deflector relative to the road surface and a position of the deflector relative to the vehicle body. The system additionally includes a controller configured to determine a ride-height of the vehicle and correlate the determined vehicle ride-height to a target height of the deflector relative to the road surface. The controller is further configured to regulate the mechanism to select the target height of the deflector relative to the road surface to thereby control the aerodynamics of the vehicle.
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公开(公告)号：US20190084630A1
公开(公告)日：2019-03-21
申请号：US15710198
申请日：2017-09-20
Applicant: GM Global Technology Operations LLC
Inventor： Caleb Potvin , Timothy D. Demetrio
CPC classification number: B62D35/008 , B62D25/02 , B62D35/02 , B62D37/02
Abstract: An adjustable body skirting assembly and a vehicle that includes the assembly. The assembly includes a support structure and a skirt member. The support structure includes a side surface and a bottom surface, and the skirt member is supported by the support structure. The skirt member is movable between a deployed position in which the skirt member is disposed transverse to the bottom surface of the support structure such that the skirt member and the side surface cooperate with each other to define a wall configured to redirect an airflow away from the bottom surface, and a retracted position in which the skirt member retracts relative to the side surface such that the wall is removed which allows the airflow to interact with the bottom surface. The assembly includes an actuator coupled to the skirt member and configured to move the skirt member to the deployed and retracted positions.
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公开(公告)号：US10220892B1
公开(公告)日：2019-03-05
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
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.
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公开(公告)号：US20190039664A1
公开(公告)日：2019-02-07
申请号：US15665752
申请日：2017-08-01
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Rebecca Tjoelker , Timothy D. Demetrio , Caleb Potvin
CPC classification number: B62D35/02 , B62D35/005 , B62D37/02
Abstract: An automotive vehicle according to the present disclosure includes a body having a lower surface with a plurality of vehicle wheels having respective contact surfaces for contacting a driving surface. An underbody space is thereby defined between the contact surfaces and the lower surface of the body. The vehicle additionally includes a movable air deflector coupled to the lower surface and projecting into the underbody space. The air deflector has a first position with a first blockage profile and a second position with a second blockage profile. The vehicle additionally includes an actuator coupled to the air deflector, which is configured to drive the air deflector between the first position and the second position. The vehicle further includes a controller configured to, in response to satisfaction of an operating condition, control the actuator to move the air deflector from the first position to the second position.
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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
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.
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