Abstract: Am electric braking system is disclosed. The electric braking system comprising: a cylinder unit having a first piston connected to a brake pedal, a cylinder chamber with the volume varying by displacement of the first piston, and a pressing chamber with the volume varying by a pressing member, and sending an intention of braking to an electronic control unit; a reservoir storing a working fluid, a pressure applier having a second piston operating by receiving power and a pump chamber with the volume varying by displacement of the second piston, and hydraulically coupled to wheel brakes, a reservoir line connecting the cylinder chamber and the reservoir and having a reservoir valve; and a pump reservoir line connecting the pump chamber and the reservoir and having a dump valve.

Abstract: The present application relates to a friction brake system (1) for a vehicle. The friction brake system (1) comprises a braking member (12) connectable to at least one brake pad and configured for pressing the brake pad against a friction surface. The system (1) further comprises a transmission unit (2) configured for converting a rotary motion generated by an electric motor (30) into a braking motion of the braking member (12). The transmission unit (2) comprises a ball-in-ramp assembly (3) having a first plate (9) with at least one groove (23), a second plate (10) with at least one groove (22) facing the groove (23) of the first plate (9), and at least one ball (11) arranged between the first plate (9) and the second plate (10). The ball (11) is retained by the groove (23) of the first plate (9) and the groove (22) of the second plate (10).

Abstract: An electronic brake system is disclosed. The electronic brake system includes a first housing having a first cylinder chamber hydraulically connected to a wheel brake unit, a first piston connected to a pedal unit so as to press an operating fluid stored in the first cylinder chamber toward the wheel brake unit, and a second cylinder chamber connected to a reservoir unit through a flow passage opened or closed by an electronic control valve. The electronic brake system includes the second cylinder chamber, a volume of which is decided by forward and backward movement of a second piston. The second piston is activated by at least one interlocking unit such that forward and backward movement of the first piston and forward and backward movement of the second piston are performed independently of each other.

Abstract: Disclosed herein is an electronic brake system.

Abstract: A safety system brake system comprises a hydraulic pressure-providing device having a pressure chamber connected to at least one brake circuit by a separating valve and into which pressure chamber a piston is moved to build up pressure. The pressure chamber is a two-stage pressure chamber having first and second sub-chambers. During pressure build-up the piston is moved into the first and then the second sub-chamber. The two sub-chamber are hydraulically closed off from each other when the piston is moved a specified distance into the second sub-chamber. A first check valve is connected to the first sub-chamber on a suction side and to a brake fluid reservoir on a blocking side. A second check valve is connected to the second sub-chamber on a suction side, and to the suction side of the first check valve on the blocking side.

Abstract: An electronic parking brake is disclosed. The electronic parking brake includes a spindle unit, a power transmission unit, a first brake unit, and a second brake unit. The spindle presses or releases a piston of a caliper device moving forward or backward toward a wheel disc, toward or from the disc. The power transmission unit transmits received power to the spindle unit. The first brake unit includes a first motor connected to the power transmission so as to generate power needed to brake wheels of a vehicle. The second brake unit includes a second motor connected to the power transmission unit so as to generate power needed to brake the wheels of the vehicle. The second brake unit and the first brake unit are operated independently from each other.

Abstract: An electrohydraulic motor vehicle control device, in particular for a motor vehicle brake system, including a hydraulic unit with electrically activated valves and a brake-pedal-activated master brake cylinder, an electronic control unit which comprises a first printed circuit board with electrical and/or electronic components for actuating the valves, and an electric motor for driving an electrically controllable, hydraulic pressure source which is arranged on a first side face of the hydraulic unit, wherein a second printed circuit board is provided which is arranged in a region of the first side face of the hydraulic unit, wherein a first sensor element for sensing activation of a brake pedal is arranged on the second printed circuit board.

Abstract: An electrohydraulic motor vehicle control device, in particular for a motor vehicle brake system, includes a hydraulic unit with electrically activated valves, an electronic control unit which includes a first printed circuit board with electric and/or electronic components for actuating the valves, and an electric motor for driving an electrically controllable, hydraulic pressure source, wherein electric and/or electronic components, in particular power electronics components for actuating the electric motor are arranged on a second printed circuit board which is arranged separately from the electronic control unit.

Abstract: A brake system for motor vehicles, having a brake master cylinder actuated by a brake pedal with at least one first pressure chamber. The brake master cylinder communicating with wheel brakes; and a hydraulic fluid storage container. A pressure balancing connection connects to the fluid storage container. A first electrically controllable pressure supply device communicating with the wheel brakes. A pressure regulating valve arrangement for regulated wheel brake pressure. A first electronic control and regulating unit actuated the first pressure supply device and the pressure regulating valve arrangement. A second electrically controllable pressure supply device connected to the brake master cylinder and having a pressure outlet connection paired with a second electronic control and regulating unit. The first and the second pressure supply device generate braking pressures independently of each other, and the pressure outlet connection is connected to the pressure balancing connection.

Abstract: Am electric braking system is disclosed. The electric braking system comprising: a cylinder unit having a first piston connected to a brake pedal, a cylinder chamber with the volume varying by displacement of the first piston, and a pressing chamber with the volume varying by a pressing member, and sending an intention of braking to an electronic control unit; a reservoir storing a working fluid, a pressure applier having a second piston operating by receiving power and a pump chamber with the volume varying by displacement of the second piston, and hydraulically coupled to wheel brakes, a reservoir line connecting the cylinder chamber and the reservoir and having a reservoir valve; and a pump reservoir line connecting the pump chamber and the reservoir and having a dump valve.

Abstract: Disclosed herein is an electronic brake system.

Abstract: Disclosed is an electronic control unit including a first printed circuit board (PCB) configured to receive power from a first terminal power supplier; and a second PCB configured to receive power from a second terminal power supplier, wherein the first PCB and the second PCB are electrically connected with at least one double winding coil, the first PCB is electrically connected to a first coil of a first double winding coil, and the second PCB is electrically connected to a second coil of the first double winding coil. According to embodiments of the present disclosure, a smaller ECU may be manufactured by connecting a plurality of PCBs with a double winding coil, and the stability of the ECU may be secured by having an extra double winding coil.

Abstract: An electronic brake system is disclosed. The electronic brake system includes a first housing having a first cylinder chamber hydraulically connected to a wheel brake unit, a first piston connected to a pedal unit so as to press an operating fluid stored in the first cylinder chamber toward the wheel brake unit, and a second cylinder chamber connected to a reservoir unit through a flow passage opened or closed by an electronic control valve. The electronic brake system includes the second cylinder chamber, a volume of which is decided by forward and backward movement of a second piston. The second piston is activated by at least one interlocking unit such that forward and backward movement of the first piston and forward and backward movement of the second piston are performed independently of each other.

Abstract: An electronic brake system is disclosed. The electronic brake system includes a pedal operation part connected to a brake pedal so as to provide better pedal feel to a driver of a vehicle; a first hydraulic circuit which includes two wheel brakes, a first hydraulic pressure supply part generating hydraulic pressure, and a plurality of valves, and is hydraulically connected to the pedal operation part; a second hydraulic circuit which includes the other two wheel brakes, a second hydraulic pressure supply part generating hydraulic pressure, and a plurality of valves, and is hydraulically connected to the pedal operation part; a first electric circuit configured to control the first hydraulic circuit; a second electric circuit configured to control the second hydraulic circuit; and a power-supply source configured to supply power to the first electric circuit and the second electric circuit. The first electric circuit and the second electric circuit are operated independently of each other.

Abstract: A brake actuation unit (1) having a master brake cylinder (2) and a pressure-medium reservoir (4); a pressure provision device (5), having a piston (51) actuated by an electric motor (35), wherein the piston delimits a pressure chamber (50); first and second groups of electrically actuatable valves (6a-6d, 7a-7d); and an electronic control unit (12, 12?). The electric motor has at least two independently operable drive units, each having at least one winding, for driving the electric motor. The electronic control unit has a first microcontroller (201) and a second microcontroller (301). The first microcontroller controls (205) one of the drive units and the second microcontroller controls (305) the other of the drive units. The first and second microcontrollers control (207, 307) the second group of valves.

Abstract: An electronic parking brake is disclosed. The electronic parking brake includes a spindle unit, a power transmission unit, a first brake unit, and a second brake unit. The spindle presses or releases a piston of a caliper device moving forward or backward toward a wheel disc, toward or from the disc. The power transmission unit transmits received power to the spindle unit. The first brake unit includes a first motor connected to the power transmission so as to generate power needed to brake wheels of a vehicle. The second brake unit includes a second motor connected to the power transmission unit so as to generate power needed to brake the wheels of the vehicle. The second brake unit and the first brake unit are operated independently from each other.

Abstract: The invention relates to an electrically controllable pressure provision device (5, 5?), particularly for a hydraulic motor-vehicle brake system, comprising a stepped bore (54), which is arranged in a housing (53,21), and a piston (51), which can be actuated by an electromechanical actuator (35, 36). The piston (51), together with the housing (53, 21), delimits a pressure chamber (50). The piston (51) is constructed as a stepped piston, the smaller-diameter piston step (51?) of which enters the smaller-diameter step (54?) of the stepped bore after a specified actuation of the stepped piston, such that the pressure chamber (50) is subdivided into a first pressure chamber (55) and a second pressure chamber (56). The invention further relates to a brake system for motor vehicles having such a pressure provision device.

Abstract: A hydraulic brake system includes a brake actuating element, a simulation device with a detector for detecting brake actuation by a driver. No mechanical and/or hydraulic operative connection between the brake actuating element and the wheel brakes is provided. A pressure medium reservoir, an electrically controllable pressure source for actuating the wheel brakes can be connected to each of the wheel brakes, electrically actuable wheel valves assigned to the wheel brakes for setting wheel brake pressures, and at least one electronic control and regulating unit for actuating the pressure source and wheel valves. The pressure source includes at least one piston which is sealed in a housing by a first sealing element and a second sealing element. In the case of a leak of the first sealing element, a pressure build-up is carried out at the wheel brakes by the pressure source with use of the second sealing element.

Abstract: A brake system for motor vehicles, which can be actuated in a “brake-by-wire” operating mode both by the vehicle driver and independently of the vehicle driver. In the “brake-by-wire” operating mode the system can be operated in at least one fallback operating mode, with a brake master cylinder, actuated by a brake pedal, having a housing and two pistons, which delimit two pressure chambers, are assigned to brake circuits with wheel brakes, a pressure medium reservoir, one electrically actuable inlet valve per wheel brake for setting wheel-individual brake pressures, a first electrically controllable pressure provision device for loading the wheel brakes with pressure, and a second electrically controllable pressure provision device with at least one vacuum connector and a pressure connector, the vacuum connector is connected to the pressure medium reservoir. The pressure connector is connected to at least one wheel brake without a valve being connected in between.

Abstract: A safety system brake system comprises a hydraulic pressure-providing device having a pressure chamber connected to at least one brake circuit by a separating valve and into which pressure chamber a piston is moved to build up pressure. The pressure chamber is a two-stage pressure chamber having first and second sub-chambers. During pressure build-up the piston is moved into the first and then the second sub-chamber. The two sub-chamber are hydraulically closed off from each other when the piston is moved a specified distance into the second sub-chamber. A first check valve is connected to the first sub-chamber on a suction side and to a brake fluid reservoir on a blocking side. A second check valve is connected to the second sub-chamber on a suction side, and to the suction side of the first check valve on the blocking side.