公开(公告)号：US20230079933A1

公开(公告)日：2023-03-16

申请号：US17447192

申请日：2021-09-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

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

IPC: B60W40/101 ,  B62D15/02

Abstract: Systems and methods for determining whether a vehicle is in an understeer or oversteer situation. The system includes a controller circuit coupled to an IMU and an EPS, and programmed to: calculate, for a steered first axle, an axle-based pneumatic trail for using IMU measurements and EPS signals and estimate a saturation level as a function of a distance between the axle-based pneumatic trail and zero. The system estimates, for an unsteered second axle, an axle lateral force curve with respect to a slip angle of the second axle, and a saturation level as a function of when the axle lateral force curve with respect to the slip angle transitions from positive values to negative values. The saturation level of the first axle and the second axle are integrated. The system determines that the vehicle is in an understeer or oversteer situation as a function of the integrated saturation levels.

公开(公告)号：US20250091593A1

公开(公告)日：2025-03-20

申请号：US18468979

申请日：2023-09-18

Applicant: GM Global Technology Operations LLC

Inventor： SeyedAlireza Kasaiezadeh Mahabadi ,  Hassan Askari ,  Saurabh Kapoor ,  Reza Zarringhalam ,  Ehsan Asadi ,  Seyedeh Asal Nahidi

IPC: B60W50/029

Abstract: A method for controlling a steer-by-wire system, comprising receiving vehicle data and a steering request from a vehicle, determining whether a steering road wheel actuator of the vehicle has failed using the vehicle data, in response to determining that the steering road wheel actuator of the vehicle has failed, determining a target wheel slip of the vehicle based on the steering request, maintaining the target wheel slip of the vehicle while the vehicle is in motion; and adjusting a wheel speed of at least one wheel of the vehicle based on a feedback signal, wherein the feedback signal is indicative of a road wheel angle while the vehicle is in motion.

公开(公告)号：US20250065885A1

公开(公告)日：2025-02-27

申请号：US18454268

申请日：2023-08-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jason D. Fahland ,  Saurabh Kapoor ,  Kenneth William Lampert

IPC: B60W40/09 ,  B60W50/10

Abstract: Vehicles and related systems and methods are provided for assisting operation of a vehicle by enabling dynamic tuning of vehicle responsiveness. One method involves obtaining an auxiliary driver input indicative of an auxiliary driver command to influence responsiveness of the vehicle from an auxiliary human-machine interface device different from a primary human-machine interface device for receiving primary driver input indicative of a driver command to influence a trajectory of the vehicle. In response to the auxiliary driver input, a relationship between a vehicle state command and the driver input is adjusted based on the auxiliary driver input, wherein an actuator control system operates one or more actuators of the vehicle in accordance with the adjusted vehicle state command to influence the trajectory of the vehicle responsive to the primary driver input.

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：US20240051548A1

公开(公告)日：2024-02-15

申请号：US17818992

申请日：2022-08-11

Applicant: GM Global Technology Operations LLC

Inventor： Yubiao Zhang ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Nikolai K. Moshchuk ,  Saurabh Kapoor ,  Ruixing Long ,  Bharath Pattipati ,  David Perez-Chaparro

IPC: B60W40/105 ,  B60W40/114

CPC classification number: B60W40/105 ,  B60W40/114 ,  B60W2552/30 ,  B60W2510/20 ,  B60W2554/4041

Abstract: A system comprises a computer including a processor and a memory. The memory includes instructions such that the processor is programmed to generate vehicle-level commands based on received vehicle operation commands. The received vehicle operation commands can comprise input commands corresponding to at least one of an autonomous vehicle (AV) mode of operation or a manual mode of operation. The processor is also programmed to generate target actuator commands based on the vehicle-level commands and transmit the target actuator commands to at least one actuator.

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.

公开(公告)号：US20250083518A1

公开(公告)日：2025-03-13

申请号：US18466320

申请日：2023-09-13

Applicant: GM Global Technology Operations LLC

Inventor： Hassan Askari ,  Mustafa Hakan Turhan ,  Saurabh Kapoor ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Nauman Sohani

IPC: B60K28/16

Abstract: A method for powerhop identification and mitigation includes receiving sensor data of a vehicle, such as wheel speed; determining a wheel jerk characteristics of the vehicle based on the wheel speed; determining a ride height of the vehicle; determining whether the vehicle is experiencing powerhop based on the wheel jerk characteristics and the ride height of the vehicle; and in response to determining that the vehicle is experiencing powerhop, adjusting a torque of the vehicle to mitigate the powerhop.

公开(公告)号：US12217558B2

公开(公告)日：2025-02-04

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

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：US12128762B1

公开(公告)日：2024-10-29

申请号：US18381914

申请日：2023-10-19

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Saurabh Kapoor ,  SeyedAlireza Kasaiezadeh Mahabadi ,  Jason D. Fahland ,  Michael A. Ryba ,  Cody Wayne Bulkley

IPC: B60K28/16 ,  B60K23/08 ,  B60W50/00

CPC classification number: B60K23/0808 ,  B60K28/16 ,  B60L2260/20 ,  B60W2050/0008 ,  B60W2520/403 ,  B60W2720/403

Abstract: A chassis control system of a vehicle includes: a first torque source providing torque to a first axle of the vehicle; a second torque source providing torque to a second axle of the vehicle independently of the first torque source; and a vehicle control module controlling the first and second torque sources to transition between a torque redistribution and torque limit control modes based on a wheel torque redistribution threshold, a wheel torque limit of the first axle and/or second axle, and a torque limit of one of the first and second torque sources. The torque redistribution mode refers to when torque is being selectively provided to the first axle by the first torque source and to the second axle by the second torque source. The torque limit control mode refers to when torque to at least one of first axle and the second axle is limited.