公开(公告)号：US10107177B1

公开(公告)日：2018-10-23

申请号：US15653124

申请日：2017-07-18

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sami Ahmed ,  Luca Scavone

IPC: F01P7/16 ,  F01P3/02 ,  F01P3/20 ,  F01P5/10 ,  F01P11/16 ,  F02M26/22 ,  F02M35/10 ,  F02B39/00 ,  F01P7/14

Abstract: An active thermal management system for a vehicle and a method of operating the system are provided. The active thermal management system may include, but is not limited to, an exhaust gas temperature sensor, an engine metal temperature sensor, an engine coolant output temperature sensor, an engine oil temperature sensor, a cooling system, and a controller, the controller configured to determine when the vehicle is in a tow/haul mode, operate the cooling system when at least one of the temperature of the exhaust gas, the engine metal, the coolant output from the engine and the temperature of the engine oil is greater than a predetermined temperature, and operate the cooling system to bypass a radiator when all of the temperature of the exhaust gas, the engine metal, the temperature of the coolant, and the temperature of the engine oil is lower than a predetermined low temperature.

公开(公告)号：US20200172106A1

公开(公告)日：2020-06-04

申请号：US16208824

申请日：2018-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kevin A. O'Dea ,  Sami Ahmed ,  Shiv G. Patel

IPC: B60W30/18 ,  B60W30/12 ,  G06K9/00 ,  G05D1/00

Abstract: An automotive vehicle includes an actuator, a sensor, and a controller configured to selectively control the actuator in an autonomous driving mode. The controller is configured to identify an adjacent driving lane proximate a current driving lane based on signals from the sensor. The controller is configured to access a current lane preference value and an adjacent lane preference value from non-transient data memory. The controller is configured to calculate a relative position and relative velocity of a target object external to the vehicle. The controller is configured to calculate a current lane weight value for the current driving lane and an adjacent lane weight value for the adjacent driving lane. The controller is configured to, in response to the adjacent lane weight value exceeding the current lane weight value, automatically control the actuator to perform a lane change maneuver from the current driving lane to the adjacent driving lane.

公开(公告)号：US10272919B2

公开(公告)日：2019-04-30

申请号：US14510862

申请日：2014-10-09

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Youssef A. Ghoneim ,  Qingrong Zhao ,  Qi Zhang ,  Bakhtiar B. Litkouhi ,  Yingmei Si ,  David M. Sidlosky ,  Valarie V. Boatman ,  Sami Ahmed

IPC: B60W40/06 ,  B60W40/068

Abstract: Methods and systems for determining road surface information in a vehicle. In one embodiment, the method includes: determining at least one condition assessment value based on steering data; determining a feature set to include at least one of self-aligning torque (SAT), slip angle, SAT variance, steering rate, and lateral acceleration based on the condition assessment value; processing steering data obtained during a steering maneuver and associated with the feature set using a pattern classification technique; and determining a surface type based on the processing.

公开(公告)号：US11498619B2

公开(公告)日：2022-11-15

申请号：US16743407

申请日：2020-01-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kevin A. O'Dea ,  Sami Ahmed ,  Christopher M. Sketch

IPC: B62D15/02 ,  B62D6/00 ,  G05D1/02 ,  B62D5/00

Abstract: A method for controlling an autonomous vehicle includes: determining whether an autonomous control mode of the autonomous vehicle is active; determining a steering wheel angle bias in response to determining that the autonomous control mode of the autonomous vehicle is active; and controlling, via a steering controller of the autonomous vehicle, an electronic power steering system of the autonomous vehicle using the steering wheel angle bias.

公开(公告)号：US20220219728A1

公开(公告)日：2022-07-14

申请号：US17149461

申请日：2021-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sami Ahmed ,  Kevin A. O'Dea ,  Audrey D. Porter ,  Bakhtiar B. Litkouhi ,  Nikolai K. Moshchuk ,  Kausalya Singuru

IPC: B60W60/00 ,  B60W40/072

Abstract: Systems and methods for controlling an autonomous vehicle are described. A trajectory planner module provides a first trajectory to a trajectory control module. The trajectory control module determines parameters of the first trajectory. The trajectory control module compares the parameters to a respective threshold value. The trajectory control module obtains one or more alternative trajectories, determines parameters of each alternative trajectory, and compares the parameters of the alternative trajectory to a respective threshold value. The trajectory control module selects a trajectory for controlling the autonomous vehicle that has parameters which are within a range defined by the threshold values and controls the autonomous vehicle based on the selected trajectory. Thus, before handing back control to a driver, the trajectory control module selects from alternate trajectories for controlling the autonomous vehicle.

公开(公告)号：US20180320617A1

公开(公告)日：2018-11-08

申请号：US15585589

申请日：2017-05-03

Applicant: GM Global Technology Operations LLC

Inventor： Sami Ahmed ,  Michael A. Smith ,  Michelangelo Ardanese ,  Daniel J. Shepard

IPC: F02D41/02 ,  F01P3/02 ,  F01N3/20 ,  F01N3/035 ,  F01N11/00

CPC classification number: F02D41/0245 ,  F01N3/035 ,  F01N3/2066 ,  F01N11/002 ,  F01P3/02 ,  F01P2003/021 ,  F01P2037/00

Abstract: An automotive vehicle includes an internal combustion engine that outputs exhaust gas from a cylinder, and an active thermal management system. The active thermal management system flows coolant around the cylinder thereby varying an exhaust temperature of the exhaust gas. An electronic engine controller controls the internal combustion engine and the active thermal management system. The engine controller generates a control signal to selectively operate the active thermal management system in a normal mode, a thermal increase mode, and a thermal decrease mode. The normal mode flows the coolant at a first coolant temperature. The thermal increase mode flows the coolant at a second coolant temperature greater than the first coolant temperature thereby increasing the exhaust temperature of the exhaust gas. The thermal decrease mode flows the coolant at a third coolant temperature less than the first coolant temperature thereby decreasing the exhaust temperature of the exhaust gas.

公开(公告)号：US12208801B2

公开(公告)日：2025-01-28

申请号：US17954821

申请日：2022-09-28

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sean M. Welch ,  Michael A. Ryba ,  Sami Ahmed ,  Michael G. Petrucci ,  Brandon S. Vivian

IPC: B60W30/182 ,  B60W20/13 ,  B60W50/08 ,  B62D1/04

Abstract: A system for limiting performance inconsistences of an electric vehicle during a race or other circumstance when consistent, high performance output is desired, such as by enabling a driver to selectively engage endurance and qualify drive modes to control a supply of electrical power used for driving the electric vehicle.

公开(公告)号：US11807268B2

公开(公告)日：2023-11-07

申请号：US17149461

申请日：2021-01-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sami Ahmed ,  Kevin A. O'Dea ,  Audrey D. Porter ,  Bakhtiar B. Litkouhi ,  Nikolai K. Moshchuk ,  Kausalya Singuru

IPC: B60W60/00 ,  B60W40/072

CPC classification number: B60W60/0011 ,  B60W40/072 ,  B60W60/0053 ,  B60W2520/105 ,  B60W2520/125

Abstract: Systems and methods for controlling an autonomous vehicle are described. A trajectory planner module provides a first trajectory to a trajectory control module. The trajectory control module determines parameters of the first trajectory. The trajectory control module compares the parameters to a respective threshold value. The trajectory control module obtains one or more alternative trajectories, determines parameters of each alternative trajectory, and compares the parameters of the alternative trajectory to a respective threshold value. The trajectory control module selects a trajectory for controlling the autonomous vehicle that has parameters which are within a range defined by the threshold values and controls the autonomous vehicle based on the selected trajectory. Thus, before handing back control to a driver, the trajectory control module selects from alternate trajectories for controlling the autonomous vehicle.

公开(公告)号：US20210214005A1

公开(公告)日：2021-07-15

申请号：US16743407

申请日：2020-01-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Kevin A. O'Dea ,  Sami Ahmed ,  Christopher M. Sketch

IPC: B62D15/02 ,  B62D5/00 ,  G05D1/02 ,  B62D6/00

Abstract: A method for controlling an autonomous vehicle includes: determining whether an autonomous control mode of the autonomous vehicle is active; determining a steering wheel angle bias in response to determining that the autonomous control mode of the autonomous vehicle is active; and controlling, via a steering controller of the autonomous vehicle, an electronic power steering system of the autonomous vehicle using the steering wheel angle bias.

公开(公告)号：US20200172105A1

公开(公告)日：2020-06-04

申请号：US16208791

申请日：2018-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Sami Ahmed ,  Kevin A. O'Dea

IPC: B60W30/18 ,  G08G1/16 ,  G05D1/00

Abstract: The present application generally relates to a method and apparatus for lane changes performed by an assisted driving control system in a motor vehicle. In particular, the system is operative to determine a requirement for a lane change, to determine a first headway between a host vehicle and a lead vehicle and a second headway between the host vehicle and an adjacent vehicle occupying the desired lane. The velocity of the host vehicle is adjusted in response to the first headway and the second headway and the lane change is initiated in response to the second headway exceeding an adequate distance.