Matthew James Roelle

US Patent:

6871136, Mar 22, 2005

Filed:

Feb 5, 2004

Appl. No.:

10/772872

Inventors:

Wenbo Wang - Novi MI, US
Richard B. Jess - Haslett MI, US
Lyle E. Hamilton - Howell MI, US
Daniel G. Bolstrum - West Bloomfield MI, US
Matthew J. Roelle - Menlo Park CA, US
John F. Van Gilder - Webberville MI, US
David N. Belton - Birmingham MI, US
Richard W. Amann - Bloomfield Hills MI, US
Fang-Cheng J. Fu - Brighton MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

G01M015/00

US Classification:

701114

Abstract:

A method and control system for verifying cold start emissions reduction control in a vehicle using an internal combustion engine utilizes measured engine speed and commanded ignition timing to calculate an estimated actual engine-out thermal energy flow. An expected thermal energy flow is calculated based on designed engine speed and ignition timing. A residual energy flow is calculated based on a difference between the estimated actual thermal energy flow and the expected thermal energy flow. Meanwhile, a system quality-weighting factor is calculated based on several measured engine parameters. A qualified energy flow residual is calculated based on the system quality weight and the residual energy flow. The qualified energy residual flow is accumulated, averaged based on the accumulated quality weight, and then filtered. Diagnostic control determines that if the cold start emissions reduction control is operating correctly based on the filtered averaged qualified energy flow residual comparing a predetermined range.

US Patent:

6983590, Jan 10, 2006

Filed:

Oct 22, 2002

Appl. No.:

10/277475

Inventors:

Matthew J. Roelle - Menlo Park CA, US
Martin L. Hall - Holly MI, US
Daniel H. Hooker - Livonia MI, US
Gary E. Johnston - Highland MI, US
Kevin E. Person - Highland MI, US
Jeffrey M. Polidan - Fenton MI, US

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01N 3/00

US Classification:

60289, 60274, 60277, 60290

Abstract:

A diagnostic system according to the present invention diagnoses system failure of a secondary air injection system. The secondary air injection system includes a pump that provides air to an exhaust system via a conduit and a valve that controls the flow of air through the conduit. A pressure sensor measures pressure in the conduit. A controller predicts pressure in the conduit during first, second and third operational phases of the secondary air injection system. The controller compares the measured pressure to the predicted pressure to evaluate operation of the secondary air injection system. During the first phase, the secondary air injection system is used to reduce vehicle emissions. During the second phase, the valve is shut while the pump is on. During the third phase, the pump is turned off while the valve is closed.

US Patent:

8460236, Jun 11, 2013

Filed:

Jun 24, 2010

Appl. No.:

12/822876

Inventors:

Matthew J. Roelle - Sunnyvale CA, US
Neal A. Tanner - Mountain View CA, US
Robert G. Younge - Portola Valley CA, US
Christopher Carlson - Menlo Park CA, US
Federico Barbagli - San Francisco CA, US
David Camarillo - San Francisco CA, US

Assignee:

Hansen Medical, Inc. - Mountain View CA

International Classification:

A61M 31/00

US Classification:

604 9501, 604523, 604528

Abstract:

Systems are described herein that improve control of a shapeable or steerable instrument using shape data. Additional systems use such shape data for improved mapping or adjusting models of the instrument. Such systems include robotic medical systems for controlling a shapeable instrument within an anatomical region having a controller, one or more actuators, and a localization system for guiding one or more shapeable instruments.

US Patent:

20040134186, Jul 15, 2004

Filed:

Jan 14, 2003

Appl. No.:

10/341616

Inventors:

Wenbo Wang - Novi MI, US
Matthew Roelle - Menlo Park CA, US
Guojun Shi - Canton MI, US

International Classification:

F01N003/00
F01N007/00

US Classification:

060/289000, 060/277000

Abstract:

Method and apparatus to monitor secondary air injection and catalyst conversion efficiency. The method includes operating an engine in a rich condition after detecting an engine steady state condition. The secondary air injector injects air into an exhaust stream to simulate a lean engine condition. The injection of the air into the exhaust stream is ceased after both inlet and outlet sensors detect the lean condition. After ceasing air injection, a lag time is determined between the inlet sensor detecting the rich condition and the outlet sensor detecting the rich operating condition. An oxygen storage capacity of the catalytic converter is calculated based on the lag time. An efficiency of the catalytic converter is determined as a function of the storage capacity. Additionally, performance of the secondary air injector is monitored. If the inlet sensor fails to detect the lean condition after the secondary air injector is active, a fault is signaled.

US Patent:

20110295247, Dec 1, 2011

Filed:

Jul 9, 2010

Appl. No.:

12/833929

Inventors:

Randall L. Schlesinger - San Mateo CA, US
Christopher R. Carlson - Menlo Park CA, US
Federico Barbagli - San Francisco CA, US
Bhaskar S. Ramamurthy - Los Altos CA, US
Matthew J. Roelle - Sunnyvale CA, US
Christopher M. Sewell - Sunnyvale CA, US
Daniel T. Wallace - Santa Cruz CA, US
Robert G. Younge - Portola Valley CA, US

Assignee:

Hansen Medical, Inc. - Mountain View CA

International Classification:

A61B 18/18
A61B 18/14

US Classification:

606 33, 606 41

Abstract:

Systems and methods are described for automating aspects of minimally invasive therapeutic treatment of patients. In one embodiment a robotic catheter system may comprise a controller including a master input device; and an electromechanically steerable elongate instrument having a proximal interface portion and a distal portion, the proximal interface portion being configured to be operatively coupled to an electromechanical instrument driver in communication with the controller, the distal portion being configured to be interactively navigated adjacent internal tissue structures of a patient's body in response to signals from the controller; wherein the distal portion of the elongate instrument comprises an antenna operatively coupled to the controller, and wherein the controller is configured to determine the temperature of structures adjacent to the distal portion of the elongate instrument utilizing radiometry analysis.

US Patent:

20110295268, Dec 1, 2011

Filed:

Jul 9, 2010

Appl. No.:

12/833935

Inventors:

Matthew J. Roelle - Sunnyvale CA, US
Federico Barbagli - San Francisco CA, US
Christopher R. Carlson - Menlo Park CA, US
Alex Goldenberg - San Francisco CA, US
Neal A. Tanner - Mountain View CA, US
Daniel T. Wallace - Santa Cruz CA, US

Assignee:

Hansen Medical, Inc. - Mountain View CA

International Classification:

A61B 19/00

US Classification:

606130

Abstract:

Embodiments are described for automating aspects of minimally invasive therapeutic treatment of patients. A robotic medical instrument system, comprising an elongate instrument having proximal and distal ends; a controller configured to selectively actuate one or more motors operably coupled to the instrument to thereby selectively move the instrument; a master input device in communication with the controller and configured to generate input commands in response to a directional movement of the master input device; and a load sensor operatively coupled to the elongate instrument and configured to sense magnitude and direction of loads applied to the distal end of the elongate instrument; wherein the controller is configured to compute an instrument movement command to selectively move the instrument based upon the input commands and an input command scaling factor applied to the input commands, the input command scaling factor being variable with the magnitude of sensed loads.

US Patent:

20110319714, Dec 29, 2011

Filed:

Jun 24, 2010

Appl. No.:

12/823032

Inventors:

Matthew J. ROELLE - Sunnyvale CA, US
Neal A. TANNER - Mountain View CA, US
Robert G. YOUNGE - Portola Valley CA, US
Chris CARLSON - Menlo Park CA, US
Federico BARBAGLI - San Francisco CA, US
David CAMARILLO - San Francisco CA, US

Assignee:

Hansen Medical, Inc. - Mountain View CA

International Classification:

A61B 1/00

US Classification:

600118

Abstract:

Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include preparing a robotic medical system for use with a shapeable instrument and controlling advancement of a shapeable medical device within an anatomic path. Also described herein are methods for altering a data model of an anatomical region.

US Patent:

20110319910, Dec 29, 2011

Filed:

Jun 24, 2010

Appl. No.:

12/823012

Inventors:

Matthew J. ROELLE - Sunnyvale CA, US
Neal A. TANNER - Mountain View CA, US
Robert G. YOUNGE - Portola Valley CA, US
Chris CARLSON - Menlo Park CA, US
Federico BARBAGLI - San Francisco CA, US
David CAMARILLO - San Francisco CA, US

Assignee:

Hansen Medical, Inc. - Mountain View CA

International Classification:

A61B 19/00

US Classification:

606130, 901 1

Abstract:

Systems and methods are described herein that improve control of a shapeable or steerable instrument using shape data. Additional methods include of controlling a shapeable instrument within an anatomical region using a robotic medical system.