Gm Global Technolgoy Operations, Inc.

Bayerische Motoren Werke Aktiengesellschaft

Daimler Ag

Chrysler Group LLC

Electronic Data Systems Corporation

Hewlett-packard Development, L.p.

Chrysler Corporation

Andrew M Zettel

Peter E Wu

Anthony H Heap

Ryan D Martini

Charles J Van Horn

Jy-Jen F Sah

Wei D Wang

Mark A Manickaraj

Norman Joseph Weigert

Hanne Buur

Osama Almasri

William R Cawthorne

John F Van Gilder

Daniel P Grenn

Aniket P Kothari

Richard A Marsh

Syed Naqi

Thomas E Mathews

Rick H Schroeder

Michael J Taljonick

Steven E Schulz

Michael R Colville

Kevin P Houle

Michael J Miller

Mary A Jeffers

Stanley D Sullivan

Rick W Szymczyk

Ammar A Atmeh

Jayanthi Padmanabhan

Goro Tamai

Brian James Koch

Paul A Adam

Larry T Nitz

Stephen T West

William Leonard Aldrich, Iii

Damon R Frisch

Curtis L Hay

Lawrence P Ziehr

Bon Ho Bae

Ali K Naqvi

Leonard G Wozniak

James C Gibbs

Andrew C Baughman

John G Noetzel

Crystal Nassouri

Todd P Lindemann

Chia-Hsiang Liu

Leah Dunbar

Robert Weiss

Marek L Wilmanowicz

Andrew J Farah

Nicholas Kokotovich

Michael J Prucka

James B Nicholson

Michael J Chappell

Eric D Piper

Kevin J Smith

Matthew S Stout

Henry R Wright

Gurhari Singh

Kevin A Dietrich

Richard B Weinberg

Michael William Roblin

Kathryn E Mulligan

Prakash Murugesan

Danielle A Cory

Kambiz Panahi

Terence L Meehan

Jackie L Cui

Vincent Rawls

Jeffrey David

Darren Crewes

Sam Almasri

Rezaul Karim

Jeffrey R Dec

Sailaja Paladugu

David S Park

Christopher J Dobies

Ramon A Alonso

Saul Scott

A system for emissions mitigation for a hybrid automobile vehicle includes an automobile vehicle provided with motive power from: a battery pack; an engine; and a controller in communication with the battery pack and the engine. A threshold battery pack state-of-charge (SOC) is predetermined. A minimum battery pack SOC is less than the threshold battery pack SOC. An engine-on charge depletion (EOCD) command is issued by the controller to start the engine in an engine-catalyst light-off operation condition when the vehicle is operating using power from the battery pack and when the threshold battery pack state-of-charge (SOC) is reached to mitigate against exceeding vehicle emissions standards.

Method and apparatus for emissions mitigation on a hybrid vehicle

A method of controlling a ground vehicle includes providing the vehicle with a first sensor configured to detect a vehicle position, a second sensor configured to detect a driven path of the vehicle, and a controller. The method also includes obtaining, via the first sensor, a plurality of vehicle position coordinates during a time interval of a drive cycle, and calculating, via the controller, a first path curvature parameter based on the plurality of vehicle position coordinates. The method additionally includes obtaining, via the second sensor, a second path curvature parameter based on the driven path during the time interval. The method further includes comparing, via the controller, the first path curvature parameter to the second path curvature parameter, and in response to a difference between the second path curvature and the first path curvature exceeding a threshold, automatically operating the controller according to a diagnostic mode.

System and method for sensor diagnostics

A vehicle includes drive wheels, an energy source having an available energy, a torque-generating device powered by the energy source to provide an input torque, a transmission configured to receive the input torque and deliver an output torque to the set of drive wheels, and a controller. The controller, as part of a programmed method, predicts consumption of the available energy along a predetermined travel route using onboard data, offboard data, and a first logic block, and also corrects the predicted energy consumption using the onboard data, offboard data, and an error correction loop between a second logic block and the first logic block. The controller also executes a control action with respect to the vehicle using the corrected energy consumption, including changing a logic state of the vehicle.

Vehicle with model-based route energy prediction, correction, and optimization

A vehicle including an energy storage device and a powertrain system configured to effect regenerative braking is described. A method for controlling the vehicle includes determining an expected increase in a state of charge of the energy storage device achieved through opportunity charging by employing regenerative braking during an anticipated next trip of the vehicle. A preferred setpoint for the state of charge of the energy storage device is determined based upon the expected increase in the state of charge achieved through opportunity charging, and charging of the energy storage device is controlled during a remote charging event based upon the preferred setpoint for the state of charge of the energy storage device.

Method and apparatus for recharging an energy storage device on a vehicle

A system for, and method of, providing e-assist on a route. A determination may be made of whether terrain data for the route is available. A rider effort level may be determined. The terrain data may be read when available. Whether a change in slope has occurred, or is anticipated to occur, corresponding to a need for an additional input to the rider effort level may be determined. The e-assist level may be adjusted to provide a level that offsets the need for the additional input, or the rider may be informed to provide an increased effort level.

Automated e-assist adjustment for an e-bike for elevation gains and loss

Method for detecting a fault condition in a vehicular hydraulic circuit during a drive cycle using an electric pump includes monitoring an actual pump torque and monitoring a desired pump torque. A current confidence factor is determined based on the actual pump torque and the desired pump torque. An average confidence factor is iteratively calculated based on the current confidence factor and previously determined confidence factors. The average confidence factor is compared to a fault condition threshold. An absence of the fault condition in the hydraulic circuit is detected when the average confidence factor is at least the fault condition threshold, and a presence of the fault condition in the hydraulic circuit is detected when the average confidence factor is less than the fault condition threshold.

Method to detect loss of fluid or blockage in a hydraulic circuit using exponentially weighted moving average filter

A method for monitoring an electrically-powered torque machine configured to generate torque in a hybrid powertrain system includes monitoring signal outputs of a resolver configured to monitor rotational position of the torque machine. Upon detecting a fault warning state associated with the signal outputs of the resolver, a motor torque capacity of the torque machine is derated. Upon a clearing of the fault warning state, a torque ramp-up state to increase the motor torque capacity of the torque machine is executed. Notice of an incidence of a fault associated with the signal outputs of the resolver is provided only when the motor torque capacity fails to achieve a threshold motor torque capacity within a threshold recovery time period while executing the torque ramp-up state.

Method and apparatus for monitoring a resolver in a torque machine

A vehicle system includes an electric motor, an internal combustion engine, and a heating system configured to transfer heat from the internal combustion engine to a passenger compartment of the vehicle. The system includes a controller configured to operate the electric motor and the internal combustion engine according to one of a plurality of drive cycle profiles. The controller selects the drive cycle profile based on an ambient temperature. The drive cycle profiles include a first drive cycle profile that commands power from the electric motor until the battery system reaches a predetermined state of charge and subsequently commands power from the internal combustion engine and a second drive cycle profile that commands power from the internal combustion engine and subsequently commands power from the electric motor.

Vehicle systems and methods with improved heating performance

A method of monitoring a performance level of a battery of a vehicle having an electronic control unit (ECU) includes enabling a charging diagnostic module (CDM) and determining, with the CDM, a charging status of the battery. The method also includes enabling a discharging diagnostic module (DDM) and determining, with the DDM, a discharging status of the battery. The charging status and the discharging status are recorded in a memory location of the ECU.

System and method of monitoring a performance level of a battery

A method for controlling a hybrid vehicle includes the following: (a) receiving route data regarding a desired trip; (b) determining a load distribution along the desired trip based on the route data; (c) determining a load threshold based on the load distribution along the desired trip; (d) determining a charge depleting operating threshold based on a state of charge of the energy storage device; (e) commanding the powertrain to shift from a charge-depleting mode to a charge-sustaining mode when a load of the hybrid vehicle is equal to or greater than the load threshold; and (f) commanding the powertrain to shift from the charge-sustaining mode to the charge-depleting mode when the hybrid vehicle has traveled a distance that is greater than or equal to the charge-depleting operating threshold since the powertrain shifted from the charge-depleting mode to the charge-sustaining mode.

Method and system for controlling a hybrid vehicle

A brake system for a vehicle having a hydraulic brake system and a regenerative brake system and a method of controlling the same is provided. The brake system may include a brake pedal having a range of motion and configured to control the application of the hydraulic brake system based upon a position of the brake pedal within the range of motion. The brake system may further include a brake controller configured to determine an inflection position of the brake pedal, the inflection position being a position of the brake pedal within the range of motion when the hydraulic brake system begins to apply a brake pressure over a predetermined threshold, wherein the brake controller applies the regenerative brake system based upon inflection position.

Regenerative braking system and method for controlling a regenerative braking system

Systems and methods are provided to allow for reliable consumption of GPS and Map information into a Control System, for such uses as improving off cycle fuel economy in a plug in hybrid vehicle with an electric motor, and an internal combustion engine using a global position system (GPS) is provided. The system comprises a global position system (GPS), a clock, and a processor containing a function executing therein that controls the internal combustion engine based on a GPS fix and its Accuracy Information (VDOP/HDOP/Satellite Quantity).

Method and systems for emissions compliant use of telematics inputs to a propulsion control system for function enablement

A method of rationalizing a plurality of temperature sensors associated with a plurality of electrical systems of a vehicle includes: maintaining each of the respective electrical systems of the vehicle in a non-operational state for a predetermined period of time; receiving a temperature reading from each of the plurality of temperature sensors following the predetermined period of time; computing a master-reference temperature value from the plurality of received temperature readings; determining a difference between each of the respectively received temperature readings and the computed master-reference temperature value; comparing each determined difference to a threshold; and providing an indicator if one or more of the determined differences exceeds the threshold.

Temperature sensor rationalization

A method includes detecting a first event and executing a first procedure to identify a sensor offset in response to detecting the first event. The method further includes determining, via a computing device, whether the sensor offset was measured during the execution of the first procedure, scheduling a second procedure to execute in response to detecting a second event if the sensor offset was not measured during the first procedure, and scheduling the first procedure to execute in response to detecting a subsequent occurrence of the first event if the sensor offset was measured during the first procedure.

System and method of measuring a sensor offset

A method and system used to identify an optimal hybrid vehicle operating mode based on a variety of potential factors, and then recommend the optimal operating mode to the driver so that they can make an informed decision regarding their operating mode selection. In one embodiment, the method uses geographic-, vehicle- and/or environmental-related factors to establish one or more operating zones, monitors the location of the hybrid vehicle and determines when it is within one of the operating zones, and then determines an operating mode that is optimal for that particular operating zone.

Method for operating hybrid vehicle

Growing community of inventors

Ann Arbor, MI, United States of America

Andrew M Zettel