Xiaowen Dai from Irvine, CA, age 60

Us Patents

Optimal Route Calculation Based Upon Cohort Analysis
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US Patent:

7356407, Apr 8, 2008
Filed:

Oct 6, 2005
Appl. No.:

11/244788
Inventors:

Richard A. Johnson - Rochester Hills MI, US
Xiaowen Dai - Shelby Township MI, US
Robert P. Roesser - Southfield MI, US
Assignee:

GM Global Technology Operations, Inc. - Detroit MI
International Classification:

G01C 21/30
US Classification:

701209, 701210, 34099519, 34099522
Abstract:

The invention includes cohort analysis as an element of an in-vehicle navigation system. As an operator makes trips from an origin to a destination, the navigation system records various route segments chosen. These choices are compared to route segments comprising a minimal time route calculated for the trip. Segments not part of the prescribed route are collected and periodically sent along with the origin and destination to a centralized server, wherein they are stored in a database. The central server also has an extensive map database that lists many attributes for each segment not generally included in an in-vehicle database. The attributes include variables pertaining to traffic flow, e. g. speed, number of lanes, lane width; topology, e. g. possible turns at endpoints; geometry, e. g.

Traffic Notification System For Reporting Traffic Anomalies Based On Historical Probe Vehicle Data
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US Patent:

7460948, Dec 2, 2008
Filed:

Mar 10, 2006
Appl. No.:

11/372721
Inventors:

Darrel J. Van Buer - Los Angeles CA, US
Son K. Dao - Northridge CA, US
Xiaowen Dai - Shelby Township MI, US
Richard A. Johnson - Rochester Hills MI, US
Assignee:

GM Global Technology Operations, Inc. - Detroit MI
International Classification:

G08G 1/00
US Classification:

701117, 701118
Abstract:

A system and method for determining and communicating a traffic anomaly at a point to at least one receiving vehicle includes a traffic information center and at least one probe device. Each probe device is configured to determine and store within an on-board database a current value of a condition at the point during each of a plurality of trips, so as to build a history of condition values. The probe device is further configured to compare the current value to the historic values during each trip, and selectively transmit notification of an anomalous value to the center.

Method And Apparatus To Monitor Vehicular Traffic
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US Patent:

7518260, Apr 14, 2009
Filed:

Oct 4, 2005
Appl. No.:

11/242742
Inventors:

Xiaowen Dai - Shelby Township MI, US
Robert P. Roesser - Southfield MI, US
Assignee:

GM Global Technology Operations, Inc. - Detroit MI
International Classification:

B60L 1/00
US Classification:

307 91
Abstract:

A vehicle traffic monitoring apparatus includes an imaging device; an image processing device; a global positioning device; and, a wireless communications system. The image processing device includes a computer program to process a data stream from the imaging device, to recognize individual vehicles substantially in view of the vehicle; and, quantify motion of the recognized individual vehicles. A second data stream is a signal output from the image processing device and includes code representing the recognized individual vehicles in view of the vehicle, quantified motion of the recognized vehicles; and vehicle position data from the global positioning system receiver. The wireless communications device receives the second data stream and communicates it a remote device. Localized traffic is monitored in metrics of traffic density, congestion, and, turbulence.

Method And Apparatus For Reporting Road Conditions
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US Patent:

7571029, Aug 4, 2009
Filed:

Oct 4, 2005
Appl. No.:

11/242743
Inventors:

Xiaowen Dai - Shelby Township MI, US
Robert P. Roesser - Southfield MI, US
Assignee:

GM Global Technology Operations, Inc. - Detroit MI
International Classification:

G06F 17/00
US Classification:

701 1, 701213
Abstract:

An on-vehicle system for identifying and reporting external conditions is presented. The system has an operator-selectable user interface to identify occurrence of an external condition, a global positioning system receiver; and, a wireless communications system. The unit may be used to assist in discovering localized roadway conditions that adversely affect safety and travel. The unit is placeable into a vehicle of a volunteer, is manually operated whenever a hazard is detected. Reportable hazards include potholes, obstacles or debris in the highway, snow or ice patches, fog, unusual traffic or pedestrian activity, and localized incidences, such as presence of disabled or emergency vehicles. Nature of the hazard is indicatable by manual activation of additional push buttons or other suitable devices. A GPS receiver is incorporated to estimate position, speed, and heading of the hazard.

System And Method For Aggregating Probe Vehicle Data
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US Patent:

8340889, Dec 25, 2012
Filed:

Mar 30, 2006
Appl. No.:

11/393320
Inventors:

Martin A. Ferman - Huntington Woods MI, US
Xiaowen Dai - Shelby Township MI, US
Robert P. Roesser - Southfield MI, US
Assignee:

GM Global Technology Operations LLC - Detroit MI
International Classification:

G06F 19/00
US Classification:

701117, 701414, 701423, 701437, 701454, 340907, 3409951, 34099515, 34099519
Abstract:

A system and method for combining sequential map segments to aggregate, analyze, and display traffic data collected from one or more probe vehicles located on one or more of the map segments.

Environmental Traffic Recognition Identification Prediction Strategies
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US Patent:

20020173903, Nov 21, 2002
Filed:

May 21, 2001
Appl. No.:

09/862222
Inventors:

Tam Phung - Ypsilanti MI, US
Ronald Allison - Clio MI, US
James Yurgil - Livonia MI, US
Xiaowen Dai - shelby Twp MI, US
Thomas Bolander - Flint MI, US
International Classification:

G06F019/00
US Classification:

701/117000, 340/905000
Abstract:

A method for continuously predicting the type of traffic in which a vehicle is traveling. The traffic pattern can be used in other vehicle control systems as an input to determine how to adjust system parameters, such as control loop proportional and integral gain calibrations. Vehicle speed is sampled over a variable number of sampling intervals, defining a prediction period. The prediction period varies as a function of distance traveled, and is limited for conditions where the distance interval is not reached within a particular time interval. When the prediction period is reached, average vehicle speed and speed variation over the period are determined. A lookup table incorporating average speed and speed variation is used to determine the traffic pattern. The prediction period can be shortened to quickly recognize transitions from city or highway traffic pattern.

Systems And Methods To Control Vehicle Braking Using Steering Wheel Mounted Brake Activation Mechanism
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US Patent:

20180170326, Jun 21, 2018
Filed:

Dec 16, 2016
Appl. No.:

15/381249
Inventors:

- Detroit MI, US
Chengwu Duan - Shanghai, CN
Jimmy Qi - Shanghai, CN
Xiaowen Dai - Shelby Township MI, US
International Classification:

B60T 7/08
B60T 8/171
Abstract:

Methods and systems for controlling vehicle braking using a steering wheel mounted brake activation mechanism are disclosed herein. In an exemplary embodiment, a method for braking a vehicle includes providing the vehicle with a steering system including a steering wheel having a brake activation mechanism, a braking system, and a controller in electronic communication with the braking system and the brake activation mechanism, receiving a user input from the brake activation mechanism, calculating an amount of vehicle braking to apply based on the user input, and automatically controlling the vehicle braking system based on the calculated amount of vehicle braking.

Systems And Methods For Assigning Responsibility During Traffic Incidents
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US Patent:

20180047283, Feb 15, 2018
Filed:

Mar 4, 2015
Appl. No.:

15/555798
Inventors:

Wende ZHANG - Troy MI, US
- DETORIT MI, US
Xiaowen DAI - Shelby Township MI, US
Peggy Wang - Shanghai, CN
International Classification:

G08G 1/01
G08G 1/056
Abstract:

Systems and methods analyze inputs () from one or more sources, internal or external to a vehicle, to allocate responsibility of a vehicle during a traffic incident. The system () includes a controller () for implementing a computer-readable storage device comprising a set of predetermined fault rules that cause a processor () of the storage device to perform operations. The system () analyzes the inputs (), using the processor (), according to the predetermined fault rules. In one embodiment, the system () includes a processor () and a computer-readable storage device comprising instructions that cause the processor () to perform operations for providing context-based assistance to a vehicle user. The operations include, in part, the system () parsing information received from the inputs () that can be processed to allocate responsibility among individuals operating vehicles () involved in the incident.