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公开(公告)号:US20170088193A1
公开(公告)日:2017-03-30
申请号:US15229762
申请日:2016-08-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Edward T. Heil , Joshua R. Auden
CPC classification number: B62D35/00 , B62D35/005 , B62D35/007 , B62D37/02 , G01M9/06 , G01M9/08
Abstract: A method can be executed to diagnose an aerodynamic system and includes the following steps: (a) determining, via a controller, a first expected downforce acting on an aerodynamic element of a vehicle based, at least in part, on a current position of the aerodynamic element relative to a vehicle body of the vehicle, wherein an electric motor is operatively coupled to the aerodynamic element; (b) determining, via the controller, a second expected downforce acting on the aerodynamic element of the vehicle based, at least in part, on an electrical current used to move the electric motor in order to move the aerodynamic element from the current position to another position; (c) determining a deviation, via the controller, based on the first expected downforce and the second expected downforce; and (d) controlling, via the controller, the aerodynamic element based, at least in part, on the deviation.
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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.
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公开(公告)号:US10725470B2
公开(公告)日:2020-07-28
申请号:US15621221
申请日:2017-06-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Seyedalireza Kasaiezadeh Mahabadi , Sayyed Rouhollah Jafari Tafti , Edward T. Heil , Nikolai K. Moshchuk , Bakhtiar B. Litkouhi
Abstract: A method is provided for autonomously operating a vehicle. The method includes receiving, at a processor, at least vehicle state data and vehicle object environment data; generating, with the processor, an optimal path for the vehicle with a cost function based on the vehicle state data and the vehicle object environment data; identifying, with the processor, at least one critical condition constraint based on at least one of the vehicle or vehicle environment; modifying, with the processor, at least a first portion of the optimal path based on the at least one critical condition constraint to result in a short-range trajectory portion; generating a resulting trajectory with the short-range trajectory portion; and implementing the resulting trajectory on the vehicle.
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14.
公开(公告)号:US10670445B1
公开(公告)日:2020-06-02
申请号:US16423431
申请日:2019-05-28
Applicant: GM Global Technology Operations LLC
Inventor: Edward T. Heil , Kevin G. Weishuhn , Sean E. Zuzga , Eric E. Krueger , Steven J. Weber
IPC: G01F23/70 , F01M11/12 , B60G17/019 , B60K15/06 , B60K15/03
Abstract: System and method for controlling operation of a vehicle having a fluid reservoir. The system includes one or more fluid level indicators configured to respectively obtain a measured fluid level in the fluid reservoir. A plurality of sensors is operatively connected to the vehicle and configured to respectively obtain one or more parameters. A controller is configured to determine if a fluid level transition between the measured fluid level and a past fluid level is indicated, when there is exactly one fluid level indicator. The controller is configured to identify a reporting state from among a first state, a second state and a third state, based in part on a correlation to a dynamic event and an expected direction for the fluid level transition. A control action is executed by the controller based in part on the reporting state.
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公开(公告)号:US10166985B2
公开(公告)日:2019-01-01
申请号:US15443995
申请日:2017-02-27
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Eric E. Krueger , Robert L. Nisonger , Edward T. Heil , Brandon C. Pennala , Patrick J. Monsere
Abstract: Systems and method are provided for controlling a vehicle. In one embodiment, a method includes: receiving, by a processor, at least one of state health and performance information associated with at least one vehicle actuator; processing, by the processor, the state of health and performance information to determine an acceleration value; and controlling the vehicle based on the acceleration value.
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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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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.
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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:US20170088192A1
公开(公告)日:2017-03-30
申请号:US15216238
申请日:2016-07-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Joshua R. Auden , Jason D. Fahland , David Dominguez , Edward T. Heil
IPC: B62D35/00
CPC classification number: B62D35/00 , B62D35/005 , B62D35/007 , B62D37/02 , Y02T10/82 , Y02T10/88
Abstract: A multi-wheeled vehicle employing an active aerodynamic control system is described. A method for controlling the vehicle and the active aerodynamic control system includes determining states of parameters related to ride and handling of the vehicle, and determining a current tractive effort based upon the states of parameters related to ride and handling of the vehicle. A desired tractive effort is determined based upon an operator desired acceleration, and an available tractive effort is determined based upon an available downforce transferable to the wheels from the active aerodynamic control system and downforces of the wheels. The active aerodynamic control system controls the downforce on one of the wheels to control the current tractive effort responsive to the desired tractive effort.
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公开(公告)号:US11745705B2
公开(公告)日:2023-09-05
申请号:US17102983
申请日:2020-11-24
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor: Todd J. Brinkman , Edward T. Heil , Douglas J. Spry , Steven G. Reini
CPC classification number: B60T8/1708 , B60T8/323 , B60T8/885 , B60T13/662
Abstract: An anti-lock braking system for a triple axle trailer having three axles and six wheels is disclosed. The system includes a first wheel speed sensor coupled to the first wheel of the trailer, a second wheel speed sensor coupled to the third wheel of the trailer, a spring mount pivotably coupled to the body of the trailer, a first suspension member coupled to the first wheel and to the spring mount and a second suspension member coupled to the second wheel and to the spring mount. The system includes a hydraulic braking actuator having a first channel coupled to the first wheel and the second wheel and a second channel coupled to the third wheel. The spring mount pivots in response to an applied brake torque to increase a normal force applied to the second wheel as compared to a normal force applied to the first wheel.
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