Ford Global Technologies, LLC

Ford Motor Company Limited

Other

Ford Global Technology, LLC

Dale Scott Crombez

Daniel A Gabor

Ryan J Skaff

Patrick Joseph Curran

Peter Francis Worrel

Steven Lee Napier

John Patrick Joyce

Kerem Bayar

Douglas Raymond Martin

Ming Lang Kuang

Yanan Zhao

Scott J Lauffer

Moses Alexander Fridman

John Phillip McCormick

Jinkoo Lee

Roger Arnold Trombley

Walter Joseph Ortmann

Hai Yu

Bryan Michael Bolger

Jonathan Andrew Butcher

Christopher Adam Ochocinski

Sergey Gennadievich Semenov

Michael John Schneider

Mark Alan Shehan

Mark Warren Muddiman

Alexander McCollough

Mark Steven Yamazaki

Xiaoyong Wang

Marvin Paul Kraska

William David Treharne

Francis Thomas Connolly

Derek Hartl

Jeffrey Allen Greenberg

Paul Aldighieri

Dale Gilman

David Leslie Watson

Walt Joseph Ortmann

John Czubay

Dan Colvin

Adil Khan

James McBride

Wayne Williams

Tim Jurkiw

Paul Joseph Szuszman

Brandon Jay Woodland

Steven Otis Pate

Jerome Charles Ivan

Barney D Nefcy

Clement Newman Sagan

Lewis Booth

Daniel Anthony Villar

Prashanth Kaparthi

Rajit Johri

Thomas Edward Pilutti

Angel Fernando Porras

Hongtei Eric Tseng

William Paul Perkins

Douglas Scott Rhode

Yonghua Li

Aaron Lewis Mills

Kenneth John Jackson

Thomas Svensson

John Shutko

Wilford Trent Yopp

Thomas Scott Gee

David Crist Gabriel

Joseph Jay Torres

Ashok E Rodrigues

Stanley Larue Bower

Andreas Evangelos Perakes

Vijay Garg

Kenneth Frederick

Matt Y Rupp

Brandon Beauvais

Chad Michael Korte

Devinder Singh Kochhar

David John Messih

Jack H Xu

Jeff Allen Greenberg

Charles K Evans

Filip Tomik

Andrew Waldis

Christopher Attard

Michael Paul Lindlbauer

Hans Gangwar

Ryan Hunt

Zachary Konchan

Kevin Michael Bullister

Kevin Sallee

Asi Perach

Devin James O'Donnell

Gunnar Robert Ross

Russell William Ferguson

Raj Prakash

Yifan Zhao

Andy Chuan Hsia

Timothy Joseph Jurkiw

Eric M Gamberg

Brad J Johnson

Deborah Sue Lienau

A vehicle includes a powertrain having an electric machine configured to power driven wheels, an accelerator pedal, and friction brakes. A vehicle controller is programmed to, with the vehicle being in a one-pedal driving mode: in response to a braking torque capacity of the powertrain exceeding a target braking torque that is based on a position of the accelerator pedal, command a torque, that is equal to the target braking torque, from the powertrain such that the vehicle is slowed using the powertrain without application of the friction brakes, and, in response to the braking torque capacity of the powertrain being less than the target braking torque, command torques from the powertrain and the friction brakes such that the target braking torque is satisfied and the vehicle is slowed using the powertrain and the friction brakes.

Vehicle braking controls and methods

A hybrid electric vehicle having one or more controllers, at least two independently driven electric machines (EMs) that are each coupled to separate drive wheels, and controllers configured to generate a torque split ratio responsive to lateral acceleration and/or unequal friction coefficients detected during braking, and to generate electric power with the motors by regeneratively braking each wheel with unequal torques adjusted by the ratio, such that combined wheel braking torques do not exceed a total braking torque limit for the vehicle. In some configurations, the controller(s) generate the torque split ratio by a predetermined lookup table that maps a plurality of torque split ratios to lateral accelerations, the coefficients, and other parameters. Further arrangements include the controller(s) coupled with sensors that detect wheel slip and yaw rate, and responsive to a braking signal, the controller(s) disengage regenerative braking when the wheel slip and/or vehicle yaw are detected.

Hybrid electric vehicle with torque split regenerative braking

Aggregating braking torque during one-pedal drive mode

A method for controlling a vehicle includes monitoring the vehicle speed for a first threshold in conjunction with a driver request for negative torque, after which the method comprises increasing a friction braking ratio. The method further comprises monitoring the speed of the vehicle for a second threshold, wherein the second threshold is lower than the first, after which the method comprises solely using the friction braking for braking holding torque.

Powertrain to friction brake standstill handoff for one pedal drive

A vehicle includes a power source configured to provide drive torque, a front axle, a rear axle, and a transfer case configured to distribute drive torque from the power source between the front axle and the rear axle. The vehicle additionally includes a clutch arranged between the front axle and the transfer case. The clutch has a disengaged state and an engaged state drivingly coupling the transfer case and the front axle. The vehicle also includes a regenerative braking system configured to, in response to a braking request, provide regenerative braking torque to the rear axle. The vehicle further includes a controller. The controller is configured to, in response to a braking request and the clutch being in the disengaged state, control the clutch to shift into the engaged state to couple the regenerative braking system to the front axle and provide regenerative braking torque to the front axle.

System and method for increasing regenerative braking in a rear-wheel-drive-based platform with four-wheel-drive capability

A regenerative braking control system includes at least one sensor adapted to sense a front tire impact event and transmit a sensor signal responsive to the front tire impact event during vehicle braking and a regenerative powertrain interfacing with the at least one sensor and adapted to reduce regenerative braking torque responsive to receiving the sensor signal from the at least one sensor. A regenerative braking control method is also disclosed.

Regenerative braking control system and method

A vehicle includes a user-actuatable switch and a controller. When the switch is actuated, the controller is adapted to effect a regenerative braking command to actuate a regenerative brake system when a vehicle speed is above a threshold speed, and to effect a parking brake command to actuate an electric park brake when the vehicle speed is less than or equal to the threshold speed.

Electric parking brake with regenerative braking control system and method

Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is allocated to vehicle wheels responsive to actual and estimated vehicle yaw. Additionally, friction braking torque is allocated to vehicle wheels responsive to requested braking torque and regenerative braking torques.

Regenerative vehicle braking with wheel slip control and yaw stability control

Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is allocated to vehicle axles responsive to wheel torques of respective vehicle axles in response to an anti-lock braking system being activated. Additionally, friction braking torque is allocated to vehicle axles responsive to the anti-lock braking system being activated.

Regenerative hybrid vehicle braking system and methods

Systems and methods for cancelling brake torque variation in a motor vehicle are disclosed. Signals indicative of brake torque variation are received at a controller. Based on the signals, a frequency associated with the indicated brake torque variation is determined. At least one of an output time and output volume of pressurized brake fluid is adjusted based on the frequency to cancel the indicated brake torque variation.

Active cancellation of brake torque variation

Methods and systems are provided for operating a hybrid vehicle during operating conditions where vehicle braking is requested. In one example, regenerative braking is permitted during conditions of wheel slip so that a greater portion of a vehicle's kinetic energy may be recovered and stored as electrical energy. Additionally, in some examples, the amount of regenerative braking is adjusted responsive to a torque of a differential clutch during wheel slip conditions.

Methods and system for regenerative hybrid vehicle braking

A controller and a control strategy minimizes shift shock in a hybrid electric vehicle during a downshift conducted while the vehicle is in a regenerative braking mode by maintaining total powertrain torque at a desired target during the downshift. The controller has three preferable modes including modulating just engine torque, modulating just electric motor torque or simultaneously modulating both motor and engine torque.

Torque modulation in a hybrid vehicle downshift during regenerative braking

A brake system for a vehicle may include a primary braking system, a backup braking system, and a braking system controller. The primary braking system may apply braking energy to wheels of the vehicle. The backup braking system may include a master cylinder configured to supply braking energy to one or more of the wheels of the vehicle. The braking system controller may be configured to select a mode of backup braking based on a functional state of the primary braking system. The braking system controller may control the master cylinder to supply braking energy to less than all of the wheels of the vehicle in a first mode of backup braking and supply the braking energy to all of the wheels of the vehicle in a second mode of backup braking. A parking brake may assist the backup braking system by utilizing proportional braking in a backup braking mode.

Braking system with selective braking backup system

A method for improving operating a vehicle that includes an accelerator pedal is disclosed. In one example, the method assesses a vehicle for accelerator pedal degradation and applies control actions to the vehicle is accelerator pedal degradation is determined. The control actions may include adjusting a throttle position and adjusting vehicle brakes.

Method and system for controlling a vehicle

Methods for controlling vacuum within a brake booster by modifying powertrain operation include determining an intake manifold vacuum in response to actuation of a brake pedal. Increasing the intake manifold vacuum if the brake booster vacuum is less than a desired brake booster vacuum. In some embodiments, the transmission is downshifted to increase engine speed and intake manifold vacuum.

Vacuum boost for vehicle braking

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Livonia, MI, United States of America

Dale Scott Crombez