Paul S Lombardo

US Patent:

7395787, Jul 8, 2008

Filed:

Feb 13, 2007

Appl. No.:

11/674190

Inventors:

George M. Claypole - Fenton MI, US
Mark D. Nemesh - Troy MI, US
Lawrence P. Ziehr - Clarkston MI, US
Paul S. Lombardo - Shelby Township MI, US

Assignee:

GM Global Technology Operations, Inc. - Detroit MI

International Classification:

F01P 9/00

US Classification:

123 4101, 123 4131, 1231425 E, 237 123 B, 180 652, 165 41

Abstract:

An air separator for low flow rate coolant systems which removes air from the liquid coolant thereof. The air separator is a closed canister having a bottom wall, a top wall at a gravitationally high location with respect to the bottom wall, and a sidewall sealingly therebetween. A coolant inlet is at the sidewall, a pump outlet is at the bottom wall and a coolant reservoir outlet is at the top wall. The coolant reservoir outlet is connected to a coolant reservoir gravitationally elevated with respect to the canister. A much larger cross-sectional area per unit length of the canister relative to the piping results in a coolant dwell time in the canister that encourages coolant air bubbles to migrate toward the coolant reservoir.

US Patent:

8489267, Jul 16, 2013

Filed:

Aug 30, 2012

Appl. No.:

13/600059

Inventors:

Paul S. Lombardo - Commerce Township MI, US
Allen J. Lehmen - Howell MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G06F 17/00

US Classification:

701 22, 62173, 62179, 621964, 622283, 622284, 701102, 701105, 701113, 123 4115, 123 4131, 123435, 123436, 123299

Abstract:

In a hybrid-electric vehicle that includes a cabin, methods and systems are provided for modifying a first curve for engine coolant temperature (ECT) warm-up trajectory. The system includes a processor configured to execute software instructions, and a memory configured to store software instructions accessible by the processor. In one embodiment, the software instructions comprise an offset lookup table that is configured to generate, based on a calculated thermal power loss across a heater core and an ambient air temperature, an offset value for modifying the first curve for ECT warm-up trajectory to produce a desired curve for ECT warm-up trajectory that is offset from the first curve. The desired curve for ECT warm up trajectory is used to adjust temperature in the cabin so that fuel consumption can be reduced.

US Patent:

8565952, Oct 22, 2013

Filed:

May 20, 2011

Appl. No.:

13/112008

Inventors:

Daniel K. Mehr - Wixom MI, US
Matthew Simonini - Milford MI, US
Paul S. Lombardo - Commerce Township MI, US
Christopher M. Haliburton - Commerce Township MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

B60L 11/00
B60W 10/24

US Classification:

701 22, 180 6529, 180 65275, 180 65265

Abstract:

A vehicle includes an engine, a power source, and a motor. The power source outputs electrical energy in accordance with an actual state of charge, and the motor generates electrical energy when provided with torque from the engine. A position sensor generates a route signal representing drive cycle data between a present location of the vehicle and a selected destination. A controller determines a reference state of charge of the power source at the present location from the drive cycle data and commands the engine to charge the power source if the actual state of charge is below the reference state of charge determined for the present location. A method includes receiving the selected destination, generating the route signal, determining the reference state of charge from the drive cycle data, and commanding the engine to charge the power source in accordance with the reference state of charge.

US Patent:

20120082871, Apr 5, 2012

Filed:

Sep 30, 2010

Appl. No.:

12/894553

Inventors:

Matthew Simonini - Milford MI, US
Stephen L. Shen - Canton MI, US
Matthew J. Martinchick - Farmington MI, US
Lawrence P. Ziehr - Clarkston MI, US
Keith D. Buford - Southfield MI, US
Paul S. Lombardo - Shelby Township MI, US
Jonathan K. Williams - Belleville MI, US
Jason J. Nolte - Howell MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS, INC. - Detroit MI

International Classification:

B60K 11/00
H01M 10/50

US Classification:

429 50

Abstract:

A method of operating a RESS thermal system in a vehicle having a coolant loop for directing a coolant through a RESS and a refrigerant loop configured to selectively cool the coolant flowing through a chiller in the coolant loop, including: determining a current target temperature range for the RESS based on a current vehicle operating mode and ambient temperature; determining a temperature of the RESS; determining if the temperature of the RESS needs to increase or decrease to be within the current target temperature range; if the determination is made that the temperature of the RESS needs to increase, determining if an active heating or a passive heating of the coolant will be employed, the active heating using a greater amount of energy over a shorter time period than the passive heating; and activating the determined active heating or passive heating of the coolant.

US Patent:

20200355152, Nov 12, 2020

Filed:

May 8, 2019

Appl. No.:

16/406658

Inventors:

- Detroit MI, US
Paul S. Lombardo - Ferndale MI, US
David W. Walters - Sterling Heights MI, US
Chunhao J. Lee - Troy MI, US
Chandra S. Namuduri - Troy MI, US
Neeraj S. Shidore - Novi MI, US
Thomas W. Nehl - Shelby Township MI, US

International Classification:

F02N 19/00
F02N 11/00

Abstract:

A method of stopping an engine crankshaft includes selecting a target angular position at which the engine crankshaft is to be stopped and detecting an actual angular position of the engine crankshaft and a rotational speed of the engine crankshaft. A stopping torque in calculated based on the actual angular position of the engine crankshaft and the rotational speed of the engine crankshaft. The stopping torque is applied to the engine crankshaft via a motor/generator operably connected to the engine crankshaft. The engine crankshaft is stopped at the target angular position via the application of the stopping torque.

US Patent:

20190338742, Nov 7, 2019

Filed:

May 1, 2018

Appl. No.:

15/967961

Inventors:

- Detroit MI, US
Lei Hao - Troy MI, US
Chandra S. Namuduri - Troy MI, US
Paul S. Lombardo - Ferndale MI, US
Chunhao J. Lee - Troy MI, US
Alexandru Rajala - Farmington Hills MI, US
Neeraj S. Shidore - Novi MI, US
Farzad Samie - Franklin MI, US
Norman K. Bucknor - Troy MI, US
Dongxu Li - Troy MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F02N 11/08

Abstract:

A method of controlled stopping an internal combustion engine having a stop-start mode and starter assembly includes detecting when the stop-start mode is active. The method also includes monitoring current rotational speed and position of the engine. The method additionally includes determining when the current rotational position is within a predetermined range of a target stop rotational position and the current rotational speed is less than a threshold rotational speed, and afterward energizing the starter assembly to engage the engine. The method also includes establishing a time delay following energizing the starter assembly to confirm engagement of the starter assembly with the engine. Furthermore, the method includes applying a torque by the starter assembly to stop the engine at the target stop position. A vehicle powertrain employing the engine equipped with the stop-start mode, the starter assembly, and an electronic controller configured to execute the method is also provided.

US Patent:

20190338743, Nov 7, 2019

Filed:

May 1, 2018

Appl. No.:

15/967904

Inventors:

- Detroit MI, US
Lei Hao - Troy MI, US
Chandra S. Namuduri - Troy MI, US
Paul S. Lombardo - Ferndale MI, US
Jeffrey R. Aldrich - Davison Township MI, US
Chunhao J. Lee - Troy MI, US
Neeraj S. Shidore - Novi MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

F02N 11/08
H02P 6/08
H02P 6/17

Abstract:

An engine starter system includes a starter including a multi-phase brushless electric motor and an electronic commutator assembly. A controller includes an instruction set that is executable in response to a command to execute an engine starting event. Operation includes determining a desired starting profile, controlling the starter to engage a rotatable member of the engine, and monitoring the rotational speed of the electric motor via a rotor position sensing circuit. The starter inverter is dynamically controlled to control the electric motor to spin the rotatable member of the internal combustion engine responsive to the desired starting profile, including dynamically controlling the starter inverter to control the electric motor to control the spin of the engine responsive to the desired starting profile to prevent occurrence of an engine speed flare event during the engine starting event.

US Patent:

20190176799, Jun 13, 2019

Filed:

Dec 8, 2017

Appl. No.:

15/836163

Inventors:

- Detroit MI, US
Michael D. Potts - South Lyon MI, US
Paul S. Lombardo - Ferndale MI, US
Anthony Burt - Ferndale MI, US
Jeffrey R. Aldrich - Davison Township MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B60W 20/10
B60W 30/192
B60L 15/20
B60W 20/40
B60W 10/08
B60W 10/06

Abstract:

A hybrid electric powertrain includes an electric machine delivering torque to an engine in an engine start event having initial cranking and transition phases. In response to a request for an engine start event, a controller commands delivery of the motor torque to the crankshaft. In the initial cranking phase the controller regulates crankshaft acceleration from zero speed up to a target cranking speed in a closed-loop manner via a predetermined fixed profile. In the transition phase, the crankshaft accelerates from the target cranking speed to a target idle speed using a feed-forward torque value blended, using a calibration table, from a predetermined engine drag torque to a reported engine torque. In the transition phase the controller periodically adjusts a speed trajectory of the crankshaft, with the magnitude and frequency of adjustment based on combustion of the engine and calibration of the feed-forward torque.