According to at least one aspect, the present disclosure provides a method of controlling an electro-hydraulic brake including an electronic brake-force distribution (EBD) control function, the method comprising: an emergency braking determination operation of determining whether emergency braking is required for a vehicle; a motor control operation of controlling a current flowing in a motor connected to a main master cylinder to increase hydraulic pressure supplied to wheel brakes when it is determined that the emergency braking is required; a rear wheel inlet valve closing operation of closing an inlet valve connected to a rear wheel brake for a predetermined time so that a pressure of the rear wheel brake is not increased earlier than a pressure of a front wheel brake; a closed time period calculation operation of calculating a time during which the inlet valve is maintained in a closed state; and a rear wheel inlet valve opening operation of determining whether a time during which the inlet valve is closed exceeds a closed time period (t), maintaining the inlet valve in the closed state until the time reaches the closed time period (t), and opening the inlet valve when the time exceeds the closed time period (t).

A braking arrangement for decelerating a heavy duty vehicle, the arrangement including a control unit, at least one electric machine arranged for regenerative braking, an electrical energy absorption device, an eddy current braking device, and a power distribution network arranged to connect the electric machine to the energy absorption device and to the eddy current braking device, wherein the control unit is configured to distribute regenerated electrical power from the electric machine between the energy absorption device and the eddy current braking device by the power distribution network in dependence of a target deceleration value of the heavy duty vehicle.

A method is for the emergency stopping of a commercial vehicle. The vehicle has a pneumatic brake system with a primary service brake system and a parking brake system. The primary service brake system has a primary electronic service brake control unit for controlling the primary service brake system and service brake actuators. The parking brake system has an electronic parking brake control unit for controlling the parking brake system and parking brake actuators on at least one vehicle axle. The pneumatic brake system can receive an emergency stopping signal. The method includes: receiving the emergency stopping signal at the primary electronic service brake control unit; braking the commercial vehicle via the primary service brake system; ascertaining a commercial vehicle speed and, if this speed is below a predetermined speed threshold value and/or after a predetermined emergency stopping time: actuating the parking brake actuators via the parking brake system.

A hydraulic braking apparatus includes a first hydraulic block; a master cylinder assembly, disposed in the first hydraulic block, where the master cylinder assembly includes a pushrod, a piston, a primary rubber cup of the piston, and a secondary rubber cup of the piston, and where the piston is connected to the pushrod; a permanent magnet is disposed inside the piston; and a stroke sensor is disposed between the primary rubber cup and the secondary rubber cup and configured to detect movement of the permanent magnet to determine an amount of movement of the piston.

A braking system for vehicles has a pilot pump with a manual actuation device, which is fluidically connected to an absorber device which simulates the driving resistance offered by at least one braking device. The system has at least one control unit operatively connected to at least one sensor and to the manual actuator device and is programmed to actuate the braking device via the actuator device when it receives from the sensors a braking action request signal. The control unit is programmed so as to correct the braking action requested by the user, actuating the manual actuator device so as to avoid blocking of one or more wheels or the occurrence of instability of the vehicle during braking. The control unit is programmed to induce on the manual actuation device at least one vibration when it corrects the braking action requested by the user.

A braking system for vehicles has a pilot pump with a manual actuation device, which is fluidically connected to an absorber device which simulates the driving resistance offered by at least one braking device. The system has at least one control unit operatively connected to at least one sensor and to the manual actuator device and is programmed to actuate the braking device via the actuator device when it receives from the sensors a braking action request signal. The control unit is programmed so as to correct the braking action requested by the user, actuating the manual actuator device so as to avoid blocking of one or more wheels or the occurrence of instability of the vehicle during braking. The control unit is programmed to induce on the manual actuation device at least one vibration when it corrects the braking action requested by the user.

Provided is an electric booster which can be downsized by enhancing space efficiency while reducing the effect of a magnetic field from outside on a magnetic sensor by means of a magnetic shield. The stroke amount of an input plunger 29 connected to a brake pedal 6 is detected by a stroke detection sensor. The operation of an electric motor is controlled by controller on the basis of the stroke amount of the input plunger to thrust a primary piston through a ball screw mechanism, and brake fluid pressure is thus generated by a master cylinder 4. The stroke detection device uses a Hall IC to detect magnetic flux densities from first and second magnet members mounted on the input plunger to obtain the stroke of the input plunger. The first and second magnet members and the Hall IC are disposed inside a linear-motion member formed of a cylindrical magnetic body of the ball screw mechanism to be magnetically shielded.

A method for measurement of contact maintaining control valve current for a hydraulic actuator may comprise sending, by a brake controller, a current signal to an electromechanical valve assembly, receiving, by the brake controller, a pressure feedback signal, increasing, by the brake controller, a value of the current signal, and determining, by the brake controller, a contact current value based upon the pressure feedback signal.

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.

Braking system for motor vehicles, with a primary brake control unit comprising at least one electrically actuable wheel valve for each wheel brake, for the purposes of setting wheel-specific brake pressures; a pressure medium storage tank which is at atmospheric pressure; and an electrically controllable pressure provision device for actuating the wheel brakes with a hydraulic pressure chamber, wherein the respective wheel brake is connected or can be connected hydraulically to the pressure chamber; wherein the braking system comprises a simulation unit with a simulator which can be actuated with the aid of a brake pedal, and an auxiliary module, wherein the auxiliary module comprises a hydraulic unit with an, in particular, electrically controllable, pressure provision device for active pressure build-up in at least two of the wheel brakes, and wherein the simulation unit is designed as a separate module.