B60T8/3255

Method for controlling an electromechanical braking system and electromechanical braking system

A method for operating an electromechanical braking system for a transportation vehicle having a brake pedal, a brake master cylinder, and an electromechanical brake booster. The electromechanical brake booster includes an actuator motor for increasing or decreasing the pedal force on the brake master cylinder to boost or reduce the braking power accordingly. A change in the boosting force of the electromechanical brake booster is limited to avoid uncontrolled changes of the brake boosting.

BRAKE-BY-WIRE SYSTEM FOR A VEHICLE WITH AN ADJUSTABLE BRAKE PEDAL EMULATOR ASSEMBLY

A brake pedal assembly of a brake-by-wire system of a vehicle includes a support structure, a brake pedal pivotally engaged to the support structure at a first pivot axis, and a brake pedal emulator assembly. The brake pedal emulator assembly extends between and is pivotally engaged to the brake pedal and the support structure at respective second and third pivot axis. The brake pedal emulator assembly includes a brake pedal emulator and an adjustment mechanism aligned along a centerline intersecting the second and third pivot axis. The brake pedal emulator is constructed and arranged to displace axially when the brake pedal is actuated, and the adjustment mechanism is constructed and arranged to adjust axial displacement.

BRAKING SYSTEM AND VEHICLE HAVING THE BRAKING SYSTEM

A braking system for a vehicle, having a brake pedal, a position sensor unit for determining position data regarding an actuation distance and/or a pivot angle of the brake pedal of the vehicle, a force sensor unit for determining force data regarding an operating force with which the brake pedal is operated, a control unit, and an additional control unit. The position sensor unit has a signal connection to the control unit and to the additional control unit for transmitting the position data to the control unit as well as to the additional control unit. The force sensor unit has a signal connection to the control unit and to the additional control unit for transmitting the force data to the control unit as well as to the additional control unit.

METHODS AND SYSTEMS FOR AUTOMATED BRAKE FEEL OPTIMIZATION FOR TRAILERING

Methods and systems are provided for a vehicle towing a trailer. In an embodiments, a method includes: storing, in a data storage device, target deceleration values associated with the vehicle not towing the trailer; when the vehicle towing the trailer is determined to be braking, determining, by a processor, that a target deceleration value of the target deceleration values is not met, adjusting a brake sensitivity value associated with trailer braking based on the target deceleration value; and controlling deceleration of the towing vehicle based on the brake sensitivity value.

Electric drive vehicle with low speed creep

Systems and methods to control the vehicle speed of a vehicle includes a motor and a controller coupled to the motor. The controller is structured to: determine that a speed of a vehicle is at or above a predetermined speed limit; activate a motor speed governor responsive to an input received by the controller, wherein the motor speed governor is structured to control a vehicle speed; and adjust an output torque based on the vehicle speed being at or above the predetermined speed limit.

VEHICLE BRAKING APPARATUS

According to an embodiment, a braking apparatus for a vehicle is advantageous in that this secures the reliability and backup brake performance of a pedal stroke sensor, so that it is possible to prevent a problem in which the brake performance of the vehicle has an error while the vehicle is driving.

Automatic break application for emergency stop
11518349 · 2022-12-06 · ·

An electronic control unit (ECU) is disclosed. The ECU may detect an emergency stopping event associated with a vehicle. The ECU may determine, based on detecting the emergency stopping event, that electro-hydraulic brakes of the vehicle are in a disabled mode. The ECU may determine, based on determining that the electro-hydraulic brakes are in the disabled mode, a position of a brake pedal of the vehicle. The ECU may override, based on the position of the brake pedal, the disabled mode to engage the electro-hydraulic brakes during the emergency stopping event.

ELECTRONIC BRAKE SYSTEM AND CONTROL METHOD THEREFOR
20220363230 · 2022-11-17 ·

Provided is an electronic brake system including: a reservoir in which a pressurizing medium is stored; a master cylinder configured to discharge the pressurizing medium according to a pedal effort of a brake pedal; a hydraulic pressure supply device configured to operate a hydraulic piston according to an electrical signal output in response to a displacement of the brake pedal to generate a hydraulic pressure; a hydraulic control unit connected to the hydraulic pressure supply device and configured to control a flow of the hydraulic pressure transferred to a wheel cylinder; a pedal simulator connected to the master cylinder and configured to provide a reaction force for the brake pedal; a simulator valve configured to open and close a flow path connecting the master cylinder and the pedal simulator; a cut valve configured to open and close a flow path connecting the master cylinder and the hydraulic control unit; a pedal displacement sensor configured to detect displacement information of the brake pedal; a pressure sensor configured to detect pressure information of the pedal simulator; and a controller configured to compensate for a target pressure according to the displacement of the brake pedal based on the displacement information of the brake pedal detected through the pedal displacement sensor and the pressure information of the pedal simulator detected through the pressure sensor when the cut valve is closed and the simulator valve is opened, and drive the hydraulic pressure supply device according to the compensated target pressure.

Force-feedback brake pedal system
11491960 · 2022-11-08 · ·

A force-feedback brake pedal system for cooperative braking of an electric or hybrid vehicle having jointly a regenerative braking system and a frictional braking system includes a brake pedal which is pivotally mounted around a shaft or a bearing, an electronic circuitry which is in electrical communication with the regenerative braking system and the frictional braking system of the vehicle, an actuator for providing force feedback in accordance with the regenerative breaking and friction breaking of the vehicle, the actuator is in mechanical communication with the brake pedal. The force-feedback brake pedal system further includes a compliant element arranged between the brake pedal and the actuator, and a position sensor which, during operation, measuring the deflections of the compliant element and transmitting data to the electronic circuitry.

Self-contained intelligent braking subsystem

An off-road vehicle includes a driveline, a control system, and a braking system. The driveline provides driveline power and driveline brake power to a first tractive assembly and/or a second tractive assembly. The control system stores vehicle information, determines driving instructions based on environment data, and determines speed references for tractive elements of the first and second tractive assemblies based on the driving instructions and the vehicle information. The braking system includes brakes and a braking subsystem. The brake subsystem operates the brakes to provide brake power to one or more components of the first and/or second tractive assemblies. The brake controller controls the brakes to selectively provide the brake power and the control system controls the driveline to selectively provide the driveline power and the driveline brake power based on current speeds of the tractive elements and the speed references to accommodate the driving instructions.