A vehicle braking device includes: a brake fluid pressure generation device arranged in a storage chamber separated from a vehicle cabin; and a brake operation part mechanically connected to the brake fluid pressure generation device, the brake operation part being not provided in the vehicle cabin. The brake fluid pressure generation device includes a cylinder and pistons configured to slide inside the cylinder. The brake fluid pressure generation device is configured to generate brake fluid pressure in accordance with strokes of the pistons. The brake fluid pressure generation device is arranged such that a sliding direction of the pistons is along a direction different from the vehicle front-rear direction in a plan view.

A control device including a fluid pressure control unit for controlling a pressure in a wheel cylinder by driving an electric motor of a pump on the basis of a command value; a motor target calculation unit for calculating a motor speed target value in accordance with an amount of increase in a fluid pressure target value; and a difference calculation unit for deriving a calculated value representing a difference obtained by subtracting the actual value from the target value for either the electric motor rotation speed or the pressure. The fluid pressure control unit derives the command value such that when the motor speed target value is less than the previous actual value for the electric motor rotation speed, the previous actual value is made the upper-limit of the command value, and the command value increases in proportion to the motor speed target value and to the calculated value.

An emergency braking device including an actuator (2), a pressurizing circuit (3) supplying the actuator (2) via a control pressure and a discharge circuit (4). The discharge circuit (4) includes restrictors (13, 14) for controlling the pressure and/or flow rate of the supply fluid of the actuator (2) during a discharge of the actuator. The restrictors (13, 14) are configured to define an intermediate pressure between a low pressure level and the control pressure of the actuator (2).

A control device including a valve-opening control unit that reduces the current value below the holding current value and increases the opening degree of the differential pressure adjustment valve when an increase in a manipulated variable of a braking operation member has been detected while holding control is being performed; and a valve-closing control unit that, when a decrease in the manipulated variable of the braking operation member has been detected while the opening degree of the differential pressure adjustment valve has been increased by the valve-opening control unit, performs a pushing process of increasing the current value above the holding current value and closing the differential pressure adjustment valve, and a holding process of setting the current value to the holding current value after the pushing process has ended.

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 a vehicle, which includes both a primary brake system, and a secondary brake system. A plurality of braking units are controlled by the primary brake system when the primary brake system is active, and at least one of the plurality of braking units controlled by the secondary brake system when the primary brake system is inactive. An actuator is part of the primary brake system, and the actuator is controlled by a primary controller. The primary controller selectively actuates the actuator to control the fluid pressure in the primary brake system to selectively actuate the plurality of braking units when the primary brake system is active, and when the primary brake system is inactive, the secondary brake system generates a boost pressure in the at least one of the plurality of braking units controlled by the secondary brake system.

A pressure medium assembly, in particular for providing and regulating a pressure in a brake circuit of a slip-controllable brake system of a motor vehicle, includes a housing block and an electronic controller. The housing block includes a pump configured to be actuated by a drive motor and a valve, which are actuated by the controller. The controller is secured to an outer face of the housing block and has a device flange that is paired with a housing flange formed on the housing block. The flanges fix the housing block and the controller together. The housing flange protrudes radially outwards relative to a housing block peripheral side facing the housing flange such that the entire upper face of the housing block is available for a controller housing. This configuration additionally allows the use of a printed circuit board which is free of open recesses on the peripheral side.

A method is provided for operating a motor vehicle brake system that includes an actuatable brake master cylinder, a hydraulic brake booster, and at least one brake circuit that has at least one hydraulically actuatable wheel brake and at least one hydraulic-pressure generator driven by electric motor. The method includes monitoring a state of actuation of the brake master cylinder is monitored, and, upon detecting a maximum state of actuation, activating the hydraulic-pressure generator to increase the hydraulic pressure adjusted by the brake master cylinder in the brake circuit.

In the case of this brake control device, for example, a drive control unit is capable of executing, in a switching manner, drive control of a motor based on an operation amount and drive control of the motor based on a stored value in a storage unit. The drive control unit continues the drive control of the motor based on the operation amount until the operation amount reaches a state satisfying a predetermined convergence condition while the drive control of the motor based on the operation amount is being executed. The storage unit stores a parameter value, which is obtained in the state in which the operation amount satisfies the predetermined convergence condition, into the storage unit as the stored value.

The braking device is provided with an electromagnetic valve, which is an example of a device to be controlled, and a valve control unit for driving the electromagnetic valve by means of PWM control. When driving the electromagnetic valve by inputting a drive signal to the electromagnetic valve, the valve control unit changes the frequency of the drive signal within a frequency range. Note that the width of the frequency range is set on the basis of the minimum audible field among equal-loudness contours.