Ford Global Technologies, LLC

Rajit Johri

Mark Steven Yamazaki

Ming Lang Kuang

Xiaoyong Wang

Wei Liang

Jeffrey Allen Doering

Jason Meyer

Ryan Abraham McGee

Fazal Urrahman Syed

Francis Thomas Connolly

Scott James Thompson

Bernard D Nefcy

Yanan Zhao

Maruthi Ravichandran

Jose Velazquez Alcantar

John Shutko

Devinder Singh Kochhar

Jeff Allen Greenberg

Christopher Attard

Shane Elwart

Daniel Scott Colvin

Chen Zhang

Douglas Scott Rhode

Hongtei Eric Tseng

Christopher John Teslak

Minku Lee

Justin Panhans

John Patrick Joyce

Kevin Ruybal

Naginder Gogna

Walter Joseph Ortmann

Joseph Jay Torres

Peter James Barrette

Maruthi Thiruninravur Ravichandran

Corwin Stout

Dennis C Reed

Felix Nedorezov

Akshay Bichkar

Judhajit Roy

Marin Assaliyski

Hao Wang

Zeng Qiu

Bhavesh Paradkar

Adam Nathan Banker

Roger Arnold Trombley

Mathew Alan Boesch

David Oshinsky

Tobias John Pallett

Louis Tijerina

Andrew Waldis

Richard David Bruns

Calvin Trescott

Ralph Wayne Cunningham

Thomas Edward Pilutti

Alexander O'Connor Gibson

Hai Yu

Eric Hongtei Tseng

Yixin Yao

Paul Stephen Bryan

Corey James Blue

Christopher Alan Lear

Nicholas Dashwood Crisp

Matt Y Rupp

Nicholas David Moore

Joshua Nicholas Dewalt

Manoharprasad K Rao

Bradley Dean Riedle

Mark Anthony Cuddihy

Dale Scott Crombez

Marvin Paul Kraska

Steven Anatole Frait

Jialiang Le

Shailesh Shrikant Kozarekar

Zhengyu Dai

Scott J Lauffer

Alex Maurice Miller

Shunsuke Okubo

Michael Edward Brewer

John Anthony Lockwood

Thomas Scott Gee

Todd Mccullough

Wilford Trent Yopp

David Crist Gabriel

Ravi Gopal

Scott Steadmon Thompson

Stanley Larue Bower

William Frederick Sanderson

Sassan Farahmand

Andrew Eugene Burt

Peter Francis Worrel

Andrew Arthur Brown

Sarra Awad Yako

Mary Catherine Farmer

Jonathan Sullivan

Robert Wright

Matthew Y Rupp

Hassan Farhat

James McBride

Craig Winfield Peterson

Paul Joseph Szuszman

Methods and systems are provided for an electric vehicle are provided. In one example, a method for an electric vehicle having a first prime mover for supplying a torque to a first axle and a second prime mover for supplying a torque to a second axle comprises transitioning the first prime mover and the second prime mover to cross a lash zone one before the other, where the lash zone of the second prime mover does not overlap with the lash zone of the first prime mover. In one example, the first prime mover is controlled with a first electronic controller and the second prime mover is controlled with a second electronic controller positioned separately in the vehicle from the first electronic controller. In one example, the method further comprises communicating information from the first electronic controller to the second electronic controller via a communication area network.

System and method to coordinate lash crossing transitions in multi-axle electrified drivetrains

A fuel cell and battery power management system for a fuel cell-powered vehicle includes an electric traction motor, a traction battery in electrical communication with the electric traction motor, a fuel cell stack in electrical communication with the traction battery and the electric traction motor, and a vehicle control system. The vehicle control system is configured to operate the vehicle with at a first discharge power level and a first charging power level if fuel cell power is sufficient alone to navigate the uphill grade and to build up battery state of charge by charging the traction battery at a second charging power level when the vehicle is approaching an uphill grade if fuel cell power is not sufficient alone to navigate the uphill grade. The vehicle control system is further configured to initiate proactive depletion of the battery SOC to enable powertrain braking and to provide regenerative power.

Predictive fuel cell and battery power management for high sustained load conditions

Methods and systems are provided for a drivetrain system comprising: a first prime mover for supplying a torque to a front axle; a second prime mover for supplying a torque to a rear axle; and a controller configured to, in response to a torque reversal, command the front axle and the rear axle to cross lash zones sequentially.

Clunk and shuffle management in multi-motor, multi-axle electrified drivetrains

Systems and methods for operating a hybrid vehicle are presented. In one example, an integrated starter/generator (ISG) is operated in a speed control mode after an engine stop request. The ISG is prevented from stopping while engine rotational speed is greater than a threshold engine rotational speed so that the engine may be restarted via the ISG.

System and method for restarting an engine

Systems and methods for operating a driveline of a hybrid vehicle are presented. In one example, an electrically driven transmission fluid pump may be deactivated in response to an engine pull-up request so that a driveline disconnect clutch may provide more consistent torque transfer capacity during closing of the driveline disconnect clutch.

System and method for starting an engine

A system, such as for a fuel cell electric vehicle, includes a fuel cell stack (FCS) and a controller. The FCS is configured to provide, such as for vehicle propulsion, a stack power commensurate with a stack power request. The stack power is a product of a stack current of the FCS and a stack voltage of the FCS. The controller is configured to, upon the stack voltage meeting a predetermined threshold, control the FCS to increase the stack current to cause the FCS to provide an increased stack power commensurate with an increased stack power request.

Fuel cell system having maximum cell voltage constraint

A system includes a fuel cell stack (FCS) and a controller. The controller adjusts a stack current of the FCS to a desired amount to cause the FCS to provide a power commensurate with a power request. The controller employs a stack power model of the FCS in adjusting the stack current.

Method and system employing fuel cell stack power model in controlling fuel cell system

Systems and methods for selecting which of a plurality of engine starting devices starts an internal combustion engine of a hybrid vehicle are presented. In one example, engine starting devices may be selected and operated while a vehicle is operating in a creep mode. The system and method may place a driveline disconnect clutch in a wait state or engage a flywheel starter to improve engine starting.

System and method for controlling engine starting devices

Systems and methods for managing starting of an internal combustion engine during shifting of a transmission of a hybrid vehicle are presented. In one example, torque converter impeller speed or a torque multiplication ratio may be indicative of an unintended transmission downshift during engine starting so that an engine starting device may be switched to improve vehicle operation.

System and method for controlling engine starting during a downshift

Methods and systems are provided for adjusting driver demand wheel torque of a vehicle. The driver demand wheel torque may be adjusted as a function of a minimum wheel torque. The minimum wheel torque may be determined according to a plurality of torques that may be evaluated in three different phases.

Method and system for adjusting a minimum driver demand wheel torque

A fuel cell electric vehicle is powered by a fuel cell that converts hydrogen gas into electricity to power the vehicle's electric motor. The fuel cell drivetrain includes the fuel cell, traction battery, vehicle controller, and other components. The vehicle controller, also known as an electronic control unit, manages and controls various functions of the vehicle, such as the fuel cell system, engine, and traction battery. It makes decisions based on data from sensors and inputs and optimizes fuel efficiency.

Predictive fuel cell restart during low speed operation

Systems and methods for starting an engine of a hybrid vehicle are described. In one example, the method starts an engine according to vehicle conditions that are within a range that is defined by one or more thresholds. The thresholds may be adjusted based on a history of individual driving patterns.

Methods and system to prepare a disconnect clutch for starting an engine

Systems and methods for starting an engine of a hybrid vehicle are described. In one example, the method selects one or more electric machines to start an engine. The method may reference a data structure, such as a matrix or table, and the matrix or table outputs which of the one or more electric machines is applied to start the engine.

Methods and system for starting an engine

A vehicle includes an all-wheel-drive powertrain having an electric machine configured to power wheels. A controller is programmed to output a first calculated vehicle speed derived from integrating a measured longitudinal acceleration of the vehicle and output a second calculated vehicle speed based on the measured longitudinal acceleration and a speed of one of the wheels. The controller is further programmed to, responsive to a flag being present, command a speed to the electric machine that is based on the first vehicle speed to reduce wheel slip, and responsive to a flag not being present, command a speed to the electric machine that is based on the second vehicle speed to reduce wheel slip.

Estimation of vehicle speed in all-wheel-drive vehicle

A vehicle operating method comprising generating a base torque reserve for an engine based on a position of an accelerator pedal and a position rate of change of the accelerator pedal, where the base torque reserve is an air reserve of the engine generated by the engine. The base torque reserve may further be generated based on one or more of a drive mode, a vehicle altitude, a battery state of charge (SOC), and a transmission gear, in at least one example.

Methods and systems for coordinated shaping of HEV base torque

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Canton, MI, United States of America

Rajit Johri