公开(公告)号：US20210079864A1

公开(公告)日：2021-03-18

申请号：US16573109

申请日：2019-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jin Shen ,  Jeffrey M. Hutmacher ,  Patricia M. Laskowsky ,  Dana J. Suttman ,  Iman Mohammadrezazadeh ,  Ruggero Scorcioni ,  Vincent DeSapio

IPC: F02D41/22 ,  F02M57/00 ,  G06N5/04

Abstract: Methods and systems are provided for monitoring a fuel injector of an internal combustion engine. In one embodiment, a method includes: receiving a set of feature data, the feature data sensed from a fuel injector during a fuel injection event; processing, by a processor, the set of feature data with a decision tree model to generate a prediction of a fault status; and selectively generating, by the processor, a notification signal based on the prediction.

公开(公告)号：US11236695B2

公开(公告)日：2022-02-01

申请号：US16573109

申请日：2019-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jin Shen ,  Jeffrey M. Hutmacher ,  Patricia M. Laskowsky ,  Dana J. Suttman ,  Iman Mohammadrezazadeh ,  Ruggero Scorcioni ,  Vincent DeSapio

IPC: F02D41/22 ,  F02M57/00 ,  G06N5/04

Abstract: Methods and systems are provided for monitoring a fuel injector of an internal combustion engine. In one embodiment, a method includes: receiving a set of feature data, the feature data sensed from a fuel injector during a fuel injection event; processing, by a processor, the set of feature data with a decision tree model to generate a prediction of a fault status; and selectively generating, by the processor, a notification signal based on the prediction.

公开(公告)号：US20220144309A1

公开(公告)日：2022-05-12

申请号：US17094255

申请日：2020-11-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tiffany J. Hwu ,  Iman Mohammadrezazadeh ,  Michael J. Daily ,  Rajan Bhattacharyya

IPC: B60W60/00 ,  G06N3/04 ,  B60W30/12

Abstract: An ego vehicle includes decider modules and a grader module coupled to a resolver module. The decider modules generate trajectory decisions at a current time, generate a current two-dimensional slice of a flat space around the ego vehicle, generate future two-dimensional slices of the flat space by projecting the current two-dimensional slice of the flat space forward in time, and generate a three-dimensional state space by stacking the current two-dimensional slice and the future two-dimensional slices. The grader module generates rewards for the trajectory decisions based on a recent behavior of an ego vehicle. The resolver module selects a final trajectory decision for the ego vehicle from the trajectory decisions based on the three-dimensional state space and the rewards. The current two-dimensional slice includes a current ego vehicle location and current neighboring vehicle locations. The future two-dimensional slices include future ego vehicle locations and future neighboring vehicle locations.

公开(公告)号：US11654933B2

公开(公告)日：2023-05-23

申请号：US17094255

申请日：2020-11-10

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Tiffany J. Hwu ,  Iman Mohammadrezazadeh ,  Michael J. Daily ,  Rajan Bhattacharyya

IPC: B60W60/00 ,  G06N3/04 ,  B60W30/12

CPC classification number: B60W60/0011 ,  B60W30/12 ,  G06N3/04 ,  B60W2552/10 ,  B60W2555/20 ,  B60W2556/40

Abstract: An ego vehicle includes decider modules and a grader module coupled to a resolver module. The decider modules generate trajectory decisions at a current time, generate a current two-dimensional slice of a flat space around the ego vehicle, generate future two-dimensional slices of the flat space by projecting the current two-dimensional slice of the flat space forward in time, and generate a three-dimensional state space by stacking the current two-dimensional slice and the future two-dimensional slices. The grader module generates rewards for the trajectory decisions based on a recent behavior of an ego vehicle. The resolver module selects a final trajectory decision for the ego vehicle from the trajectory decisions based on the three-dimensional state space and the rewards. The current two-dimensional slice includes a current ego vehicle location and current neighboring vehicle locations. The future two-dimensional slices include future ego vehicle locations and future neighboring vehicle locations.