公开(公告)号：US09713947B2

公开(公告)日：2017-07-25

申请号：US15163116

申请日：2016-05-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kevin Irwin ,  Edward T. Heil ,  Jason D. Fahland ,  Joshua R. Auden ,  Steven A. Opiteck ,  David Dominguez ,  Chris Morgan

IPC: B60G17/0165 ,  B62D35/00 ,  B62D37/02

CPC classification number: B60G17/0165 ,  B60G2204/4308 ,  B60G2300/27 ,  B60G2401/15 ,  B60G2401/21 ,  B60G2500/30 ,  B62D35/00 ,  B62D35/005 ,  B62D37/02

Abstract: A system is configured to control aerodynamics of a vehicle. The vehicle includes a vehicle body having a front end facing an ambient airflow when the vehicle is in motion relative to a road surface. The system includes an adjustable aerodynamic-aid element mounted to the vehicle body. The system also includes a mechanism configured to vary a position of the adjustable aerodynamic-aid element relative to the vehicle body and thereby control movement of the airflow. The system additionally includes a sensor configured to detect a height of the vehicle body relative to a predetermined reference frame and a controller configured to receive a signal from the sensor indicative of the detected vehicle body height. The controller is also configured to determine a ride-height of the vehicle using the detected vehicle body height and to regulate the mechanism in response to the determined ride-height to control aerodynamics of the vehicle.

公开(公告)号：US10035549B2

公开(公告)日：2018-07-31

申请号：US15210203

申请日：2016-07-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chris Morgan

IPC: B60R22/00 ,  E05F15/00 ,  G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B62D37/02 ,  B62D35/00

CPC classification number: B62D37/02 ,  B62D35/005 ,  B62D35/007 ,  Y02T10/82

Abstract: A vehicle has first and second portions, with a front aerodynamic element located in the first portion and a rear aerodynamic element located in the second portion. The front and rear aerodynamic elements are each independently movable to respective deployment positions between respective stowed positions and respective fully-extended positions. A controller is operatively connected to each of the front and rear aerodynamic elements and has a processor and tangible, non-transitory memory. The controller is programmed to obtain a front target position (Tf,n) for the front aerodynamic element at a current time step (n) based at least partially on at least one vehicle state parameter at a previous time-step (n−1) and a detected position (Dr,n-1) of the rear aerodynamic element at the previous time-step (n−1).

公开(公告)号：US09937908B2

公开(公告)日：2018-04-10

申请号：US15235902

申请日：2016-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chris Morgan ,  James H Holbrook ,  Edmund F. Gaffney, III

IPC: B60R22/00 ,  E05F15/00 ,  G05D1/00 ,  G05D3/00 ,  G06F7/00 ,  G06F17/00 ,  B60T8/1755 ,  B62D35/00 ,  B60T1/16 ,  B60T8/171 ,  B62D37/02

CPC classification number: B60T8/17551 ,  B60T1/16 ,  B60T8/171 ,  B60T2210/12 ,  B60T2270/86 ,  B62D35/007 ,  B62D37/02 ,  Y02T10/88

Abstract: A method for controlling an active aerodynamic element in a vehicle having road wheels with tires in contact with a road surface includes receiving driver input signals and vehicle kinematics data. The driver input signals correspond to a requested aerodynamic performance operating point. Tire coefficients of friction in the longitudinal and lateral directions are provided to the controller. Desired longitudinal and lateral forces acting on the tires are determined using the input signals, kinematics data, and actual force data. Additionally, a desired total aerodynamic downforce for meeting the aerodynamic performance operating point is determined as a function of the tire forces and coefficients. A position of the aerodynamic element(s) is controlled such that the total aerodynamic downforce is achieved. A system includes the aerodynamic element(s), actuator(s), and controller. A vehicle includes the body, road wheels, active aerodynamic element(s), actuator(s), and controller.

公开(公告)号：US20170080987A1

公开(公告)日：2017-03-23

申请号：US15210203

申请日：2016-07-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chris Morgan

IPC: B62D37/02 ,  B62D35/00

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

Abstract: A vehicle has first and second portions, with a front aerodynamic element located in the first portion and a rear aerodynamic element located in the second portion. The front and rear aerodynamic elements are each independently movable to respective deployment positions between respective stowed positions and respective fully-extended positions. A controller is operatively connected to each of the front and rear aerodynamic elements and has a processor and tangible, non-transitory memory. The controller is programmed to obtain a front target position (Tf,n) for the front aerodynamic element at a current time step (n) based at least partially on at least one vehicle state parameter at a previous time-step (n−1) and a detected position (Dr,n−1) of the rear aerodynamic element at the previous time-step (n−1).

公开(公告)号：US20170080908A1

公开(公告)日：2017-03-23

申请号：US15235902

申请日：2016-08-12

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chris Morgan ,  James H. Holbrook ,  Edmund F. Gaffney, III

IPC: B60T8/1755 ,  B60T1/16 ,  B60T8/171 ,  B62D35/00

CPC classification number: B60T8/17551 ,  B60T1/16 ,  B60T8/171 ,  B60T2210/12 ,  B60T2270/86 ,  B62D35/007 ,  B62D37/02 ,  Y02T10/88

Abstract: A method for controlling an active aerodynamic element in a vehicle having road wheels with tires in contact with a road surface includes receiving driver input signals and vehicle kinematics data. The driver input signals correspond to a requested aerodynamic performance operating point. Tire coefficients of friction in the longitudinal and lateral directions are provided to the controller. Desired longitudinal and lateral forces acting on the tires are determined using the input signals, kinematics data, and actual force data. Additionally, a desired total aerodynamic downforce for meeting the aerodynamic performance operating point is determined as a function of the tire forces and coefficients. A position of the aerodynamic element(s) is controlled such that the total aerodynamic downforce is achieved. A system includes the aerodynamic element(s), actuator(s), and controller. A vehicle includes the body, road wheels, active aerodynamic element(s), actuator(s), and controller.

公开(公告)号：US10266028B2

公开(公告)日：2019-04-23

申请号：US15495247

申请日：2017-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Chris Morgan ,  Christopher Archambo ,  Aditya Muktidoot

IPC: B60G17/033 ,  B60G11/27 ,  B60G17/016

Abstract: A suspension system for a vehicle includes a plurality of air spring assemblies, each having an air spring, and a suspension position sensor; and a controller. The controller is programmed to determine corner forces associated with each air spring of the plurality of air spring assemblies based on a pressure provided by a pressure sensor and an effective area of each air spring of the plurality of air spring assemblies based on a total length provided by the suspension position sensor, according to a target total length of each air spring.

公开(公告)号：US20180304717A1

公开(公告)日：2018-10-25

申请号：US15495247

申请日：2017-04-24

Applicant: GM Global Technology Operations LLC

Inventor： Christopher J. Mettrick ,  Chris Morgan ,  Christopher Archambo ,  Aditya Muktidoot

IPC: B60G17/033 ,  B60G11/27

CPC classification number: B60G17/033 ,  B60G11/27 ,  B60G17/0162 ,  B60G17/0163 ,  B60G2400/10 ,  B60G2400/25 ,  B60G2400/41 ,  B60G2400/51222 ,  B60G2500/20 ,  B60G2500/201 ,  B60G2500/30 ,  B60G2800/18 ,  B60G2800/24

Abstract: A suspension system for a vehicle includes a plurality of air spring assemblies, each having an air spring, and a suspension position sensor; and a controller. The controller is programmed to determine corner forces associated with each air spring of the plurality of air spring assemblies based on a pressure provided by a pressure sensor and an effective area of each air spring of the plurality of air spring assemblies based on a total length provided by the suspension position sensor, according to a target total length of each air spring.

公开(公告)号：US20170080770A1

公开(公告)日：2017-03-23

申请号：US15163116

申请日：2016-05-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kevin Irwin ,  Edward T. Heil ,  Jason D. Fahland ,  Joshua R. Auden ,  Steven A. Opiteck ,  David Dominguez ,  Chris Morgan

IPC: B60G17/0165 ,  B62D37/02 ,  B62D35/00

CPC classification number: B60G17/0165 ,  B60G2204/4308 ,  B60G2300/27 ,  B60G2401/15 ,  B60G2401/21 ,  B60G2500/30 ,  B62D35/00 ,  B62D35/005 ,  B62D37/02

Abstract: A system is configured to control aerodynamics of a vehicle. The vehicle includes a vehicle body having a front end facing an ambient airflow when the vehicle is in motion relative to a road surface. The system includes an adjustable aerodynamic-aid element mounted to the vehicle body. The system also includes a mechanism configured to vary a position of the adjustable aerodynamic-aid element relative to the vehicle body and thereby control movement of the airflow. The system additionally includes a sensor configured to detect a height of the vehicle body relative to a predetermined reference frame and a controller configured to receive a signal from the sensor indicative of the detected vehicle body height. The controller is also configured to determine a ride-height of the vehicle using the detected vehicle body height and to regulate the mechanism in response to the determined ride-height to control aerodynamics of the vehicle.