Ford Global Technolgoies, LLC

Robert Boschgmbh

Thomas Svensson

Rudolf Daniels

Ian Moore

Harold John Felch

Ashrit Das

Tim Jurkiw

Chad Michael Korte

John Patrick Joyce

Roberto Villegas Muriel

Lowell Kubik

Dale Scott Crombez

Herbert Vollert

Daniel A Gabor

David Patterson

Charles K Evans

Timo Jahnz

Karl-Peter Hesseler

Marc Suermann

Christian Schmaler

Matthias Baumann

Harbind S Chahal

Eugen Weber

Timothy Joseph Jurkiw

Joerg Riethmueller

Thomas Wilwers

Kenneth Mchugh

Andrew Stoscup

Marie Preusser

Jill Trappe

Thomas Eichhorn

Bradley J Johnson

Rob Eaton

Erik Wickop

A method of adaptively canceling brake system noise in a vehicle may include monitoring for an occurrence of brake torque stick slip and determining, based on a table of critical parameters associated with brake noise production, when vehicle status information indicates the vehicle is in a critical region for brake noise production. The method may further include, responsive to the occurrence of the brake torque stick slip or the vehicle status information indicating the vehicle is in the critical region for brake noise production, initiating a change to brake force distribution between a front axle and a rear axle of the vehicle, and adaptively updating the table of critical parameters.

Adaptive noise cancellation in a brake system

A control system includes a braking system operably coupled to a wheel assembly to apply braking force when actuated responsive to operation of a brake pedal, a propulsion system to apply positive torque for propulsion responsive to operation of an accelerator pedal, and a gear selector to select an operating state of the vehicle when the gear selector is in an unfaulted state. The operating state is a selected one of park and drive states. The braking system applies a holding force in the park state and the propulsion system enables application of the positive torque in the drive state. The control system further includes a park status backup controller that detects actuation of the brake pedal, and receives information indicative of a fault state of the gear selector. In response to receiving an activation pattern during the fault state, the park status backup controller generates an operating state change instruction.

Architecture for alternative means to shift in and out of park

A vehicle braking system may include a first EMB assembly associated with a first wheel, a second EMB assembly associated with a second wheel, a third EMB assembly associated with a third wheel, a fourth EMB assembly associated with a fourth wheel, a control module to control application of signaling and power for operation of the first, second, third and fourth EMB assemblies where the power is provided from a first power network and a second power network, a first temporary power supply to backup the first power network, and a second temporary power supply to backup the second power network.

Brake architecture for a full, four corner electromechanical braking system

A vehicle includes a brake-by-wire system having a brake pedal and first and second sensors. The first sensor is configured to output a first signal indicative of a position of the brake pedal and the second sensor is configured to output a second signal indicative of the position. A controller is programmed to command a braking torque based on only the first signal when a travel of the brake pedal is limited to a first range.

Methods for providing correct brake request with a stuck e-pedal

Motor vehicles and methods for operating motor vehicles are disclosed herein. An example motor vehicle includes an electric drive, an electrical brake including one or more braking actuators, a drive controller communicatively coupled to the electric drive and the electrical brake, and a brake controller communicatively coupled to the electrical brake. The drive controller is to cause the one or more braking actuators to actuate in response to a signal indicating a failure of the brake controller.

Motor vehicles and methods for operating motor vehicles

Methods, apparatus, systems, and articles of manufacture to extend brake life cycle are disclosed herein. An example vehicle includes a first brake associated with a first wheel of the vehicle, a second brake associated with a second wheel of the vehicle, memory, and a brake controller to execute instructions to detect a first parking event, determine, via a first sensor, a condition of the vehicle, access, from the memory, a record of a second parking event including an activation of the first brake, the second parking event preceding the first parking event, and in response to determining the condition satisfies a threshold, engage the second brake without engaging the first brake.

Methods and apparatus to extend brake life cycle

A vehicle includes a brake-by-wire system having a brake pedal and a first sensor configured to output a signal indicative of a position of the brake pedal. A controller is in communication with the sensor and is programmed to enable and disable a one-pedal driving mode based on a user-selected setting. The controller is further programmed to, in response to the signal of the first sensor being valid and the one-pedal driving mode being disabled, enable the one-pedal driving mode regardless of the user-selected setting.

Vehicle brake-by-wire control system

A vehicle control system may include a brake pedal position sensor, a braking torque module, an accelerator pedal position sensor, and a brake augmenter. The brake pedal position sensor is operably coupled to a brake pedal to determine a brake pedal position responsive to actuation of the brake pedal by an operator. The braking torque module is operably coupled to wheels of the vehicle to provide negative torque to the wheels based on the brake pedal position when an EBB system is in an operable state. The accelerator pedal position sensor is operably coupled to an accelerator pedal to determine accelerator pedal position for generation of positive torque to the wheels based on the accelerator pedal position when the EBB system is in the operable state. The brake augmenter is operably coupled to the accelerator pedal position sensor to provide a negative torque input to the wheels responsive to the accelerator pedal position sensor indicating a first range of pedal positions and a positive torque input to the wheels responsive to the accelerator pedal position sensor indicating a second range of pedal positions when the EBB system is in an inoperable state.

Brake assist for an inoperable electronic booster brake system

A vehicle control system for controlling braking in a vehicle may include a braking system operably coupled to one or more wheels of the vehicle to provide brake inputs to the one or more wheels responsive to a torque request generated based on pedal position. The system may further include a pedal position sensor operably coupled to a brake pedal to determine the pedal position responsive to actuation of the brake pedal by a driver of the vehicle, a pedal feel simulator operably coupled to the brake pedal to provide tactile feedback to the driver via a pedal force applied to the brake pedal, an accelerometer for determining a rate of velocity reduction of the vehicle during the actuation of the brake pedal, and a feedback augmenter operably coupled to the pedal feel simulator to provide a pedal force offset to increase the pedal force provided to the brake pedal based on the rate of velocity reduction.

System and method for providing a brake fade indication

A method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in a service-brake system of a vehicle includes capturing and evaluating a plurality of demand indications for a startup of the braking-torque assistance system. If the evaluation of the captured plurality of demand indications reveals a demand for the startup of the braking-torque assistance system, a plurality of operating conditions of the service-brake system are captures and evaluated over a monitoring period. If, in turn, the evaluation of the captured plurality of operating conditions reveals that an overheating of the service-brake system is imminent, the braking-torque assistance system is actuated and one or more deactivation conditions of the braking-torque assistance system are checked. If the deactivation conditions are satisfied, the braking-torque assistance system is deactivated.

Control system and method for controlling an activation state of a braking-torque assistance system for reducing intake of braking energy in a service-brake system of a vehicle

A method for the automated control of the longitudinal movement of a motor vehicle having an automated positive acceleration process in a longitudinal direction of the vehicle and an automated deceleration in the longitudinal direction of the vehicle. An acceleration variable is determined based on a jerk value and limited in terms of absolute value. And the jerk value is in turn determined in a driving mode in which, starting from a vehicle actual longitudinal speed and a vehicle actual longitudinal acceleration, the motor vehicle is adjusted to a predeterminable vehicle longitudinal speed taking into account a predeterminable maximum positive driving mode vehicle longitudinal acceleration, a predeterminable maximum driving mode vehicle longitudinal deceleration and at least one predeterminable driving operating mode jerk absolute value which limits the jerk.

Method and system for control of motor vehicle longitudinal movement

A method for operating a hydraulic brake system of a motor vehicle having a brake booster and a hydraulic brake boost wherein a brake pressure is detected and an underpressure, prevailing in an underpressure chamber of the brake booster is estimated on the basis of the detected brake pressure. The hydraulic brake boost controlled based on the estimated underpressure, with the estimated underpressure taking into account an actuation of the hydraulic brake boost.

Method for operating a motor vehicle hydraulic brake system

A method for operating a hydraulic motor vehicle brake system with an anti-lock brake system having a plurality of brake cylinders associated with the wheels to be braked. A central pressure generating device generates a hydraulic brake pressure, wherein the hydraulic brake pressure is distributed to the brake cylinders and may be selectively modified for individual brake cylinders or a group of brake cylinders. The hydraulic brake pressure maintained at a level exceeding an estimated brake pressure limit of each wheel.

Method for operating a vehicle brake system

The invention relates to a method for longitudinal control of a motor vehicle, the motor vehicle having an engine and a braking system. The method including receiving a torque demand from a controller for controlling the speed of the vehicle, and providing a torque on the basis of this torque demand, whereby, depending on the value of the torque demand, a brake torque counteracts the torque demand to control longitudinal vehicle movement.

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Leichlingen, Germany

Thomas Svensson