Calculating vehicle states of a vehicle system for lane centering

    公开(公告)号:US11359919B2

    公开(公告)日:2022-06-14

    申请号:US16593552

    申请日:2019-10-04

    Inventor: Guoguang Zhang

    Abstract: A system includes an inertial navigation system module (INS module) that detects vehicle yaw rates and vehicle lateral speeds, a controller circuit communicatively coupled with the INS module. The controller circuit determines a tire cornering stiffness (Cf, Cr) based on vehicle physical parameters and vehicle dynamic parameters. The controller circuit determines a vehicle moment of inertia (Iz) based on the vehicle physical parameters, the vehicle dynamic parameters, and the tire cornering stiffness (Cf, Cr).

    Evasive Steering Assist Modification Based on Manual Steering Inputs

    公开(公告)号:US20230192191A1

    公开(公告)日:2023-06-22

    申请号:US17645716

    申请日:2021-12-22

    CPC classification number: B62D15/0265 B62D5/0463

    Abstract: The techniques and systems herein enable ESA modification based on manual steering inputs. Specifically, a score is determined for a manual steering input to a host vehicle while an ESA is actively applying an ESA steering input to the host vehicle. The score quantifies an amount of additional steering input relative to the ESA steering input (e.g. additional steering angle, steering wheel torque). The ESA steering input is maintained, modified, or canceled based on the score. By doing so, the system is able to effectively adapt the ESA to the manual steering inputs thereby allowing for effective collision mitigation while ensuring that the vehicles operate as intended by the drivers.

    SELF-LEARNING-BASED INTERPRETATION OF DRIVER'S INTENT FOR EVASIVE STEERING

    公开(公告)号:US20230099555A1

    公开(公告)日:2023-03-30

    申请号:US17487118

    申请日:2021-09-28

    Abstract: Evasive steering assist (ESA) systems and methods for a vehicle utilize a set of vehicle perception systems configured to detect an object in a path of the vehicle, a driver interface configured to receive steering input from a driver of the vehicle via a steering system of the vehicle, a set of steering sensors configured to measure a set of steering parameters, and a controller configured to determine a set of driver-specific threshold values for the set of steering parameters, compare the measured set of steering parameters and the set of driver-specific threshold values to determine whether to engage/enable an ESA feature of the vehicle, and in response to engaging/enabling the ESA feature of the vehicle, command the steering system to assist the driver in avoiding a collision with the detected object.

    Evasive steering assist with a pre-active phase

    公开(公告)号:US11427254B2

    公开(公告)日:2022-08-30

    申请号:US17127836

    申请日:2020-12-18

    Abstract: Techniques and systems are described that enable evasive steering assist (ESA) with a pre-active phase. An ESA system predicts that a collision with an object is imminent and enters a pre-active phase. The pre-active phase causes a required drop in steering force to occur prior to determining that the collision is imminent. At a later time, the ESA system determines that the collision is imminent and enacts an active phase. The active phase causes a steering force effective to avoid the collision. By enacting the pre-active phase prior to the determination of the imminent collision, the ESA system may provide the additional steering force needed to avoid the collision without delay while simultaneously shielding a driver of vehicle from feeling the drop in steering force.

    Calculating Vehicle States of a Vehicle System for Lane Centering

    公开(公告)号:US20220260374A1

    公开(公告)日:2022-08-18

    申请号:US17662585

    申请日:2022-05-09

    Inventor: Guoguang Zhang

    Abstract: A system includes an inertial navigation system module (INS module) that detects vehicle yaw rates and vehicle lateral speeds, a controller circuit communicatively coupled with the INS module. The controller circuit determines a tire cornering stiffness (Cf, Cr) based on vehicle physical parameters and vehicle dynamic parameters. The controller circuit determines a vehicle moment of inertia (Iz) based on the vehicle physical parameters, the vehicle dynamic parameters, and the tire cornering stiffness (Cf, Cr).

    VEHICLE CONTROL SYSTEM
    16.
    发明申请

    公开(公告)号:US20220009522A1

    公开(公告)日:2022-01-13

    申请号:US16924638

    申请日:2020-07-09

    Abstract: A vehicle control system includes a controller circuit in communication with a steering sensor and one or more perception sensors. The steering sensor is configured to detect a steering torque of a steering wheel of a host vehicle. The one or more perception sensors are configured to detect an environment proximate the host vehicle. The controller circuit is configured to determine when an operator of the host vehicle requests a take-over from fully automated control of the host vehicle based on the steering sensor. The controller circuit classifies the take-over request based on the steering sensor.

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