-
公开(公告)号：US10053143B2
公开(公告)日：2018-08-21
申请号：US15345047
申请日：2016-11-07
摘要： A controller for a power steering system estimates rack force and its derivative, such as based on lateral acceleration, yaw rate, vehicle speed, or other parameters. A control torque is calculated based on the rack force, its derivative, and the vehicle speed and is summed with an input torque from the driver to determine an amount of assist torque to provide. The control torque may be a shape function that has a sign determined by the sign of the derivative and a magnitude that decreases from a maximal value with increase in the magnitude of the rack force. The maximal value may be determined according to vehicle speed.
-
公开(公告)号：US11951792B2
公开(公告)日：2024-04-09
申请号：US16798795
申请日：2020-02-24
IPC分类号： B60G17/019 , B60G17/0185 , G01P3/38 , G05B13/02 , G07C5/08 , G06N3/04
CPC分类号： B60G17/0185 , B60G17/019 , G01P3/38 , G05B13/027 , G07C5/0808 , G06N3/04
摘要： A detected displacement of a marker on a vehicle is determined based on image data captured while the vehicle traverses a displacement object of a ground surface. Then a health status of a suspension component of the vehicle is determined to be unhealthy based on comparing the detected displacement of the marker to a target displacement of the marker. The target displacement specifies displacement of the marker that indicates the suspension component is healthy. The vehicle is operated based on the suspension component being unhealthy.
-
公开(公告)号：US20210260950A1
公开(公告)日：2021-08-26
申请号：US16798795
申请日：2020-02-24
IPC分类号： B60G17/0185 , G07C5/08 , B60G17/019 , G01P3/38 , G05B13/02
摘要： A detected displacement of a marker on a vehicle is determined based on image data captured while the vehicle traverses a displacement object of a ground surface. Then a health status of a suspension component of the vehicle is determined to be unhealthy based on comparing the detected displacement of the marker to a target displacement of the marker. The target displacement specifies displacement of the marker that indicates the suspension component is healthy. The vehicle is operated based on the suspension component being unhealthy.
-
公开(公告)号：US10150470B2
公开(公告)日：2018-12-11
申请号：US15245281
申请日：2016-08-24
发明人： Dexin Wang , Douglas Scott Rhode
IPC分类号： B62D5/04 , B60W30/18 , B60W30/045 , B60W40/105 , G05D1/02
摘要： A system includes a computing device that includes a processor and a memory. The memory stores instructions executable by the processor. One instruction is to determine a transition in performance of a steering system actuator of a vehicle to a diminished operating mode. Another instruction is to determine a maneuverable envelope of vehicle velocity and path curvature adapted to the diminished operating mode. Another instruction is to select a vehicle velocity within the envelope for a path curvature.
-
公开(公告)号：US20180127021A1
公开(公告)日：2018-05-10
申请号：US15345047
申请日：2016-11-07
发明人： Dexin Wang , Timothy Gerard Offerle , Doug Scott Rhode , Taehyun Shim , Yijun Li
摘要： A controller for a power steering system estimates rack force and its derivative, such as based on lateral acceleration, yaw rate, vehicle speed, or other parameters. A control torque is calculated based on the rack force, its derivative, and the vehicle speed and is summed with an input torque from the driver to determine an amount of assist torque to provide. The control torque may be a shape function that has a sign determined by the sign of the derivative and a magnitude that decreases from a maximal value with increase in the magnitude of the rack force. The maximal value may be determined according to vehicle speed.
-
公开(公告)号：US20180056986A1
公开(公告)日：2018-03-01
申请号：US15245281
申请日：2016-08-24
发明人： Dexin Wang , Douglas Scott Rhode
IPC分类号： B60W30/045 , B60W40/105 , G05D1/02 , B60W30/18 , B62D5/04
CPC分类号： B60W30/045 , B60W30/18145 , B60W40/105 , B60W2710/20 , B60W2720/125 , B60W2720/24 , B62D5/0421 , B62D5/0481 , B62D15/025 , G05D1/0223 , G05D2201/0213
摘要： A system includes a computing device that includes a processor and a memory. The memory stores instructions executable by the processor. One instruction is to determine a transition in performance of a steering system actuator of a vehicle to a diminished operating mode. Another instruction is to determine a maneuverable envelope of vehicle velocity and path curvature adapted to the diminished operating mode. Another instruction is to select a vehicle velocity within the envelope for a path curvature.
-
公开(公告)号：US11676429B2
公开(公告)日：2023-06-13
申请号：US16559909
申请日：2019-09-04
发明人： Smruti Panigrahi , Devon Eyerman , Colm Boran , Dexin Wang
CPC分类号： G07C5/0841 , G05D1/0055 , G06N3/08 , H04L12/40 , H04L2012/40215 , H04L2012/40273
摘要： A computer can be programmed to determine that an impact to a wheel of a vehicle exceeds an impact severity threshold and transmit a message describing the impact via a vehicle communications network. An electronic controller can be programmed to make an adjustment to monitoring the component based on receiving the message in the electronic controller.
-
公开(公告)号：US20210065482A1
公开(公告)日：2021-03-04
申请号：US16559909
申请日：2019-09-04
发明人： Smruti Panigrahi , Devon Eyerman , Colm Boran , Dexin Wang
摘要： A computer can be programmed to determine that an impact to a wheel of a vehicle exceeds an impact severity threshold and transmit a message describing the impact via a vehicle communications network. An electronic controller can be programmed to make an adjustment to monitoring the component based on receiving the message in the electronic controller.
-
公开(公告)号：US10916074B2
公开(公告)日：2021-02-09
申请号：US16036328
申请日：2018-07-16
发明人： Smruti Ranjan Panigrahi , Dawei Luo , Jianbo Lu , Dexin Wang
IPC分类号： G07C5/08 , G06N3/04 , G01L5/00 , G01M17/013 , G06N3/08
摘要： Data describing operation of a vehicle is provided to a deep neural network. A vehicle wheel impact event is determined based on output of the deep neural network. Alternatively or additionally, it is possible to determine the wheel impact event based on output of a threshold based algorithm that compares vehicle acceleration and the velocity to one or more thresholds.
-
公开(公告)号：US20180346021A1
公开(公告)日：2018-12-06
申请号：US15609804
申请日：2017-05-31
摘要： Methods and apparatus for virtual torsion bar steering controls are disclosed. A disclosed example apparatus includes a sensor associated with a steering system to measure an operational angle of the steering system, a virtual torsion bar operatively coupled to the steering system, the virtual torsion bar to calculate a control torque based on a request angle and the operational angle, and a torque compensator to control an output torque of the steering system based on the control torque.
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.018 秒)
