The present invention relates to an electronic control unit (ECU) structure of a brake system, and has an ECU board that is arranged, as an addition, in a symmetric or asymmetric structure in order to form redundancy in preparation for the breakdown of an ECU, and has sensors that are also arranged for implementation of the redundancy, and thus the brake system can be operated even if a part of the ECU breaks down.

The present invention relates to an electronic control unit (ECU) structure of a brake system. An ECU of a brake system, according to the present invention, has a redundancy configuration in which a first control unit, a first cover, and a second control unit are sequentially stacked so that the first control unit and the second control unit are spatially separated by means of the first cover, and thus the second control unit can perform the function of the first control unit without being influenced when the first control unit malfunctions.

A method for decelerating a trailer vehicle in a vehicle combination having a tractor vehicle and at least one trailer vehicle includes determining, by a wheel module at a respective wheel of the trailer vehicle, acceleration measurement values of the respective wheel, generating, by the wheel module, an information signal taking into account the acceleration measurement values of the respective wheel, and transmitting the information signal in a wireless fashion. The method further includes evaluating the acceleration measurement values and monitoring the acceleration measurement values with respect to a locking tendency of the respective wheel, and when an information signal of the wheel module is received, adjusting, by an electronic brake control unit, the trailer brake pressure taking into account the information signal.

A piston pump includes: a sleeve housing which is provided with a discharge hole and defines a bore; a piston which has an inlet flow passage for drawing oil into the bore and is reciprocally movably inserted into the bore; an inlet valve which is configured to open/close the inlet flow passage; an outlet valve cover which is coupled to the sleeve housing to surround a portion at which the discharge hole is formed; an outlet valve which is configured to open/close the discharge hole; and a sealing member which is interposed between the sleeve housing and the piston to provide a sealing therebetween. The sealing member is provided with a separation prevention protrusion against which the piston is blocked to prevent a separation of the piston.

A method for operating an antilock brake system of a vehicle, in which a braking torque at at least one wheel of the vehicle is cyclically controlled in at least build-up phases and reduction phases, in order to prevent locking of the wheel. In a build-up phase, the braking torque is increased until a maximum adhesion at the wheel is exceeded, and in a subsequent reduction phase, the braking torque is reduced by a differential braking torque, which is ascertained, using a wheel acceleration value of the wheel measured after the build-up phase and a target acceleration value for the wheel.

To obtain a hydraulic pressure control unit that can be downsized.

A hydraulic pressure control unit (1) for a brake system mounted to a straddle-type vehicle includes: a coil unit (60) used to open/close a channel of a brake fluid; a housing (40) that accommodates the coil unit (60); a placement table (90) held by the housing (40); and a base body (10) having an upper surface (18) to which the coil unit (60) and the housing (40) are connected. The placement table (90) is configured that at least a part thereof is arranged below a portion of a coil housing (65) of the coil unit (60) and that, in a state before the coil unit (60) and the housing (40) are connected to the base body (10), a support section (91) supports the portion of the coil housing (65) from below.

A hydraulic pressure control unit capable of suppressing application of an external force thereto in comparison with the related art at the time when mounted to a straddle-type vehicle is obtained.

A hydraulic pressure control unit (1) includes: a base body (10) formed with an internal channel through which a brake fluid flows; and a housing (40) that is connected to the base body (10) and accommodates a circuit board. A dimension in a width direction (Y) of the housing (40) is greater than a dimension in the width direction (Y) of the base body (10). In a state where the hydraulic pressure control unit (1) is seen in a connection direction (X), a center in the width direction (Y) of the base body (10) is located on a first side surface (45) side from a center in the width direction (Y) of the housing (40).

A hydraulic pressure control unit (1) for a brake system mounted to a straddle-type vehicle includes a housing (40) that accommodates a circuit board (31). The housing (40) includes: a main body (41) formed with an opening (43a) in a region opposing the circuit board (31); a lid (48) that covers the opening (43a) and adheres to the main body (41); and a lid fixing section (50) provided in a space surrounded by the main body (41) and the lid (48) and fixing the lid (48) to the main body (41). The lid fixing section (50) includes: an engaged section (51) held by one of the main body (41) and the lid (48); and an engaging section (55) that is held by the other of the main body (41) and the lid (48) and engages with the engaged section (51).

A rail train brake control system, comprising: a single vehicle brake control unit, a train brake control unit, a traction control unit and a communication control unit; the single vehicle brake control unit is provided in each vehicle of the rail train, the train brake control unit and the communication control unit are provided in the vehicles at both ends of the rail train, and the traction control unit is disposed in motor vehicles of a plurality of vehicles; and the single vehicle brake control unit, the train brake control unit, the traction control unit and the communication control unit implement communication by means of the gateway. The system can realize flexible marshalling of a train. Further disclosed is a train comprising the train brake control system.

A brake system includes an electromechanical brake having a friction surface, a lining support, an electric motor for moving the lining support, a spring acting on the lining support, and a control and monitoring unit. A control and monitoring unit ascertains from at least one first value ascertained during a first movement of the lining support by the electric motor, an operating behavior value for a real operating behavior of an operating parameter of the relevant brake, and ascertains, by a comparison of the at least one real operating behavior value to at least one stored operating behavior expectation, a correction factor. The brake control system corrects by the one correction factor and activates a regulator of the electric motor using the corrected brake control signal. The control and monitoring unit is performs a calibration by a spring force of the at least one spring during the first movement.