公开(公告)号：US11820437B2

公开(公告)日：2023-11-21

申请号：US17103764

申请日：2020-11-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Seyedeh Asal Nahidi ,  Saurabh Kapoor ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Naser Mehrabi ,  James H. Holbrook ,  Hualin Tan ,  Bakhtiar B. Litkouhi

IPC: B62D37/02 ,  B62D35/00 ,  B62D15/02

CPC classification number: B62D37/02 ,  B62D15/021 ,  B62D35/005 ,  B62D35/007

Abstract: An aerodynamic deflector on the vehicle is repositionable. An actuator is coupled with the aerodynamic deflector. A controller configured to: detect a performance mode of operation of the vehicle; determine a requested lateral acceleration; calculate a control adjustment of the aerodynamic deflector to generate a downforce to achieve the requested lateral acceleration and maximize lateral grip of the vehicle; and operate the actuator to effect the control adjustment of the aerodynamic deflector to generate the downforce on the vehicle.

公开(公告)号：US11651633B2

公开(公告)日：2023-05-16

申请号：US17325709

申请日：2021-05-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yubiao Zhang ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Seyedeh Asal Nahidi ,  Naser Mehrabi ,  Hualin Tan ,  Bakhtiar B. Litkouhi

IPC: G07C5/08

CPC classification number: G07C5/0808

Abstract: A system includes a clutch state module and a clutch torque module. The clutch state module is configured to determine whether a clutch of an electronic limited slip differential is locked or unlocked. The electronic limited slip differential couples an engine of a vehicle to left and right wheels of the vehicle. The clutch torque module is configured to estimate an actual torque transferred by the clutch using a first clutch torque model when the electronic limited slip differential is unlocked, and estimate the actual clutch torque using a second clutch torque model when the electronic limited slip differential is locked. The second clutch torque model is different than the first clutch torque model.

公开(公告)号：US20220161874A1

公开(公告)日：2022-05-26

申请号：US17103764

申请日：2020-11-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Seyedeh Asal Nahidi ,  Saurabh Kapoor ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Naser Mehrabi ,  James H. Holbrook ,  Hualin Tan ,  Bakhtiar B. Litkouhi

IPC: B62D37/02 ,  B62D15/02 ,  B62D35/00

Abstract: Systems and methods are provided for generating a downforce on a vehicle. An aerodynamic deflector on the vehicle is repositionable. An actuator is coupled with the aerodynamic deflector. A controller configured to: detect a performance mode of operation of the vehicle; determine a requested lateral acceleration; calculate a control adjustment of the aerodynamic deflector to generate a downforce to achieve the requested lateral acceleration and maximize lateral grip of the vehicle; and operate the actuator to effect the control adjustment of the aerodynamic deflector to generate the downforce on the vehicle.

公开(公告)号：US20250018956A1

公开(公告)日：2025-01-16

申请号：US18350508

申请日：2023-07-11

Applicant: GM Global Technology Operations LLC

Inventor： Mohammad Pournazeri ,  Reza Hajiloo ,  Naser Mehrabi ,  Ehsan Asadi ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Gianmarc Coppola

IPC: B60W40/13 ,  B62D37/02 ,  G06N3/04

Abstract: A method for downforce control includes receiving sensor data from sensors, using a feedforward control to determine a first requested normal force at the first axle of the vehicle and a second requested normal force at the second axle of the vehicle and the sensor data, using a feedback control to determine a first requested normal force adjustment at the first axle of the vehicle and a second requested normal force adjustment at the second axle of the vehicle using the sensor data, fusing the first requested normal force at the first axle of the vehicle with the first requested normal force adjustment to determine a first-adjusted normal force request at the first axle, and fusing the second requested normal force with the second requested normal force adjustment to determine a second-adjusted normal force request at the second axle.

公开(公告)号：US20240161556A1

公开(公告)日：2024-05-16

申请号：US18055479

申请日：2022-11-15

Applicant: GM Global Technology Operations LLC

Inventor： Saurabh Kapoor ,  Mustafa Hakan Turhan ,  Nauman Sohani ,  Hassan Askari ,  Naser Mehrabi ,  Ehsan Asadi ,  Sresht Gurumoorthi Annadevara ,  SeyedAlireza Kasaiezadeh Mahabadi

IPC: G07C5/08

CPC classification number: G07C5/0808

Abstract: A fault remediation system for a vehicle includes one or more controllers in electronic communication with one or more consumed interfaces and one or more provided interfaces. The one or more controllers execute instructions to receive, from the one or more consumed interfaces, a consumed signal and perform fault detection upon the consumed signal to determine the presence of an active fault within the consumed signal. In response to detecting an active fault with the consumed signal, the one or more controllers select a remediation state from a group of two or more prospective remediation states based on a significance analysis of the consumed signal. The one or more controllers evaluate a relevant subfunction that corresponds to the consumed signal that the remediation state addresses for the presence of remediation tolerance and generates arbitration instructions based on the remediation tolerance.

公开(公告)号：US11338796B1

公开(公告)日：2022-05-24

申请号：US17124664

申请日：2020-12-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Yubiao Zhang ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Ehsan Asadi ,  Naser Mehrabi ,  Hualin Tan

IPC: B60W30/02 ,  B60W30/18 ,  B60W10/10 ,  B60W10/06 ,  B60W10/08

Abstract: A traction control module includes a sensor/estimation module configured to output wheel stability data based on a plurality of wheel condition inputs and a wheel stability monitoring module configured to calculate a plurality of wheel stability predictors based on the wheel stability data. Each of the wheel stability predictors is independently indicative of a wheel slip condition. The traction control module further includes a wheel stability data fusion module configured to receive each of the plurality of wheel stability predictors, combine selected wheel stability predictors from the plurality of wheel stability predictors to generate combinations of the wheel stability predictors, and selectively output a torque reduction request based on the combinations of the wheel stability predictors.

公开(公告)号：US11318924B1

公开(公告)日：2022-05-03

申请号：US17145616

申请日：2021-01-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Saurabh Kapoor ,  Naser Mehrabi ,  Seyedeh Asal Nahidi ,  SeyedAlireza Kasaiezadeh Mahabadi ,  James H. Holbrook ,  Hualin Tan ,  Bakhtiar B. Litkouhi

IPC: B60W10/119 ,  B60K17/34 ,  B60K23/08 ,  B60W10/04

Abstract: An axle torque distribution system includes a memory and a control module. The memory stores a steering angle and a toque distribution algorithm. The control module executes the torque distribution algorithm to: obtain the steering angle; based on the steering angle, determine total lateral force requested for axles of a vehicle; based on the total lateral force requested, determine lateral forces requested for the axles while constraining lateral force distribution between the axles, where the constraining of the lateral force distribution includes, based on maximum lateral force capacities of tires of the vehicle, limiting the lateral forces requested for the axles; determine available longitudinal capacities for the axles based on the lateral forces requested respectively for the axles; determine torque capacities of the axles based on the lateral forces requested respectively for the axles; and control distribution of torque to the axles based on the torque capacities of the axles.

公开(公告)号：US20210253089A1

公开(公告)日：2021-08-19

申请号：US16791470

申请日：2020-02-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Seyedeh Asal Nahidi ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Naser Mehrabi ,  Saurabh Kapoor ,  James H. Holbrook ,  Hualin Tan ,  Bakhtiar B. Litkouhi

IPC: B60W30/045 ,  B60W30/04

Abstract: A vehicle, system and method of operating the vehicle. A sensor measures a dynamic parameter of the vehicle. A processor determines a lateral force on a first tire based on the dynamic parameter of the vehicle, determines a longitudinal force on the first tire that achieves a maximal grip of the first tire for the lateral force, and adjusts a first torque on the first tire in order to achieve the determined longitudinal force at the first tire.