B60T8/326

Electric brake system and controlling method thereof
11565677 · 2023-01-31 · ·

Disclosed herein is an electric brake system including: a hydraulic feeder configured to move a piston forward or backward according to a pedal effort from a brake pedal to discharge oil; a motor position sensor configured to measure a position of the piston; and a controller configured to control, when an Anti-lock Brake System (ABS) control starts, a change in direction of the piston based on predicted displacement information of the piston while the ABS control is performed such that the piston is at a target position at target vehicle speed.

BRAKE SYSTEM WITH FLUID STORAGE SECONDARY BRAKE MODULE
20230227016 · 2023-07-20 ·

A brake system for actuating at least one wheel brake includes a reservoir and a master cylinder operable to provide a brake signal responsive to actuation of a brake pedal connected thereto. The master cylinder is selectively operable during a manual push-through mode to generate brake actuating pressure to at least one output for hydraulically actuating at least one wheel brake. A power transmission unit is configured for actuating at least one of the wheel brakes in a non-failure normal braking mode. A secondary braking module is configured for selectively providing hydraulic fluid to each of the wheel brakes in an enhanced braking mode. The secondary braking module includes a pump motor driving at least one pump unit. Each pump unit is operatively connected to a fluid accumulator associated with the correlated wheel brake for selectively varying an amount of hydraulic fluid provided to the wheel brake.

Device for a brake pedal force-travel emulator with force and displacement sensor and corresponding process

Device for a brake travel emulator with at least one integrated sensor, comprising a housing (5), a force sensor (18) both being connected to a middle part of a connection means (4). The force sensor (18) being arranged at a static unit (2), the housing (5) further comprising at least one conical compression spring (6), an axially sliding component (7), a connecting rod (9) comprising a varying diameter geometry, an oscillating means (48) capable of creating an electric field, and a displacement sensor (46), the force sensor (18) further comprising, a micro-controller (50), means for receiving applied force (41) and at least four coils (30, 31, 32, 33).

Aircraft brake system

A braking system is disclosed. In various embodiments, the braking system includes a brake stack; an actuator configured to apply a compressive load to the brake stack; a servo valve coupled to a power source and to the actuator; and a brake control unit configured to operate the servo valve at a current ramp rate in response to a pedal deflection signal, wherein the current ramp rate is determined via a relationship between the current ramp rate and a brake pressure command signal.

BRAKE APPARATUS FOR VEHICLE
20230001900 · 2023-01-05 · ·

The present disclosure in some embodiments provides a brake apparatus for a vehicle, comprising: a reservoir configured to store a working fluid; a master cylinder connected to the reservoir; a hydraulic circuit connected to a wheel brake; a primary brake unit configured to supply a hydraulic pressure to the wheel brake through the hydraulic circuit; and a secondary brake unit configured to supply a hydraulic pressure to the wheel brake through the hydraulic circuit, wherein the hydraulic circuit comprises: a first hydraulic circuit coupled to the reservoir, the master cylinder, and the secondary brake unit; a second hydraulic circuit coupled to the reservoir and the primary brake unit; and a third hydraulic circuit coupled to the primary brake unit, the secondary brake unit, and the wheel brake.

APPARATUS AND METHOD FOR CONTROL OF A HYDRAULIC BRAKE BY WIRE SYSTEM
20230001902 · 2023-01-05 · ·

A brake system for selectively actuating at least one of a pair of front wheel brakes and a pair of rear wheel brakes of a vehicle, one of which is hydraulically actuated and the other of which is electrically actuated, includes a reservoir. First and second integrated control units are in fluid communication with the reservoir and respective ones of the hydraulically actuated wheel brakes. The first and second integrated control units have first and second power transmission units connected to first and second electronic control unit, respectively. Each electronic control unit is configured to control a corresponding power transmission unit and a selected one of the electrically actuated wheel brakes on a contralateral side of the vehicle from the selected one of the hydraulically actuated wheel brakes which is actuated by the power transmission unit.

Vehicle braking control device

Provided is a vehicle braking control device applicable to a vehicle equipped with an electric-powered parking braking device, a hydraulic braking device and a regenerative braking device. The braking control device comprises a first braking control unit and a second braking control unit. When a parking braking operation is performed while the vehicle is travelling, the first braking control unit implements a first braking process which increases the braking force to the vehicle by operating the hydraulic braking device. When the braking force to the vehicle needs to be increased in a situation where the first braking process is being implemented, the second braking control unit implements a second braking process which increases the braking force to the vehicle by operating the regenerative braking device.

Brake by wire

An electrohydraulic actuator assembly for use in a brake-by-wire hydraulic brake system. The electrohydraulic actuator assembly includes a pair of electrohydraulic actuator EHA units. One EHA unit provides fluid to front brakes and the other EHA unit provides fluid to rear brakes. Each EHA unit includes an electric motor, a reduction gear unit, a pair of magnetorheological clutches, and a pair of fluid pumps. The system further including an ECU that actuates the electric motor and controls engagement of the clutches to cause the fluid pump to pump brake fluid to at least one of the front and rear brakes. The system further includes a regeneration system for providing supplemental electricity to the electric motors.

ELECTRONIC BRAKE SYSTEM AND OPERATION METHOD THEREFOR
20220396250 · 2022-12-15 ·

The present disclosure relates to an electronic brake system and an operation method thereof. The electronic brake system prepares various valves provided on flow paths, that connect components and a reservoir, in a closed state, and then switches the various valves to an open state after a hydraulic pressure of a pressure medium is formed by a hydraulic supply device.

System and Method for Providing a Brake Fade Indication
20220396248 · 2022-12-15 ·

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.