Abstract: A vehicle brake system (1) includes a first control device (10) and a second control device (11) that respectively include a master controller (30), a first sub-controller (40), and a second sub-controller (41) that are connected to one another. Each of the master controller (30), the first sub-controller (40), and the second sub-controller (41) includes a braking force calculation unit that calculates braking force of electric brakes (16a to 16d), and a determination unit that compares braking force calculation results of the controllers to determine whether itself is normal. The determination unit includes an output block section that blocks, when the determination unit determines that any one of the controllers is not normal, an output of the controller that is determined to be not normal.

Abstract: The present invention discloses an electric parking brake control device capable of accurately determining operation of an electric actuator. The electric parking brake control device is capable of performing an application process for controlling the electric actuator to move in the direction in which a friction member is pressed against a rotation body that rotates integrally with a wheel and a release process for controlling the electric actuator to move in the direction in which the friction member is moved away from the rotation body. Even upon receiving (time t12) a new operation request for operating the electric actuator during a period (time t1 to t5) from the start of the application process or the release process to the completion of the process, the electric parking brake control device does not change the operation of the electric actuator on the basis of the operation request.

Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).

Abstract: Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake system 1 is equipped with a mutually connected master controller 30 and first and second sub-controllers 40, 41, and an output cut-off control unit 200. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal.

Abstract: A highly reliable vehicle brake system including an electric brake is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) provided with motors (80 to 85), drivers (60 to 65) that drive the motors (80 to 85), and a control device that controls the drivers (60 to 65). The electric brake (16a) includes two motors (80 and 81), and the control device includes separate drivers (60 and 61) respectively corresponding to the two motors (80 and 81). The control device includes a first master controller (30) and a first sub-controller (40). The first master controller (30) controls the driver (61) corresponding to the motor (81), and the first sub-controller (40) controls the driver (60) corresponding to the motor 80.

Abstract: For a vehicle disc brake, a piston-side first friction pad is provided with at least one protrusion on a piston-contacting section that excludes the central axis line of the piston and the piston is provided with an engagement hole capable of engaging with the protrusion. Symmetric with the piston-side first friction pad with a brake disc therebetween, a reaction pawl-side second friction pad is provided with a protrusion. As a result, it is possible to provide a vehicle disc brake in which the first friction pad and the second friction pad are both made to have a protrusion, reducing the possibility of incorrect assembly, and the friction pads themselves are made to be used in common, facilitating product management.

Abstract: For a vehicle disc brake, a piston-side first friction pad is provided with at least one protrusion on a piston-contacting section that excludes the central axis line of the piston and the piston is provided with an engagement hole capable of engaging with the protrusion. Symmetric with the piston-side first friction pad with a brake disc therebetween, a reaction pawl-side second friction pad is provided with a protrusion. As a result, it is possible to provide a vehicle disc brake in which the first friction pad and the second friction pad are both made to have a protrusion, reducing the possibility of incorrect assembly, and the friction pads themselves are made to be used in common, facilitating product management.

Abstract: Provided is a vehicle brake system equipped with an electric brake and which has high reliability and enables redundancy at low cost. This vehicle brake system 1 is equipped with a mutually connected master controller 30 and first and second sub-controllers 40, 41, and an output cut-off control unit 200. Each of the controllers includes: a braking force calculation section for calculating the braking force of the electric brake; a self-determination section for determining whether or not the controller itself is normal; and an other-determination section for comparing the braking force calculation results of the controllers to determine whether the other two are normal.

Abstract: A highly reliable vehicle brake system including an electric brake is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) provided with motors (80 to 85), drivers (60 to 65) that drive the motors (80 to 85), and a control device that controls the drivers (60 to 65). The electric brake (16a) includes two motors (80 and 81), and the control device includes separate drivers (60 and 61) respectively corresponding to the two motors (80 and 81). The control device includes a first master controller (30) and a first sub-controller (40). The first master controller (30) controls the driver (61) corresponding to the motor (81), and the first sub-controller (40) controls the driver (60) corresponding to the motor 80.

Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) includes a first control device (10) and a second control device (11) that respectively include a master controller (30), a first sub-controller (40), and a second sub-controller (41) that are connected to one another. Each of the master controller (30), the first sub-controller (40), and the second sub-controller (41) includes a braking force calculation unit that calculates braking force of electric brakes (16a to 16d), and a determination unit that compares braking force calculation results of the controllers to determine whether itself is normal. The determination unit includes an output block section that blocks, when the determination unit determines that any one of the controllers is not normal, an output of the controller that is determined to be not normal.

Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) is provided to a wheel (Wa) of a vehicle (VB), and includes an electric brake (16a) provided with a motor (80), a driver (60) that drives the motor (80), and a first control device (10) provided with a master controller (30) and a first sub-controller (40) connected to each other. The electric brake (16a) is controllable by both the master controller (30) and the first sub-controller (40).

Abstract: A highly reliable vehicle brake system that includes an electric brake and achieves redundancy at low cost is provided. A vehicle brake system (1) includes electric brakes (16a to 16d) that include at least one unit of motors (80 and 81), and first and second control devices (10 and 11) that include a master controller (30) and a first sub-controller (40) that are connected to one another. The master controller (30) includes a driver control unit (301) that can control drivers (61 and 63), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The first sub-controller (40) includes a driver control unit that controls a driver (60), and a braking force calculation unit that calculates braking force of the electric brakes (16a to 16d). The master controller (30) and the first sub-controller (40) include a determination unit that compares braking force calculation results of other controllers to determine braking force.

Abstract: A disc brake device for a vehicle, the disc brake device is equipped with: a piston slidably fitted into a cylinder hole provided in one arm section of a brake caliper, and capable of pressing against one friction pad; a shim plate mounted on a back plate of the one friction pad and interposed between the back plate and the piston; and a pressing device that applies pressing force to the piston while causing rotational force to act on the piston. Multiple protrusions protruding toward the piston are provided, with intervals between the protrusions, on the back plate of the friction pad facing the piston with the shim plate therebetween, and multiple engaging holes, into which the multiple protrusions are fitted, are provided on the shim plate so as to prevent the shim plate from rotating together with the piston due to the rotational force.

Abstract: For a vehicle disc brake, a piston-side first friction pad is provided with at least one protrusion on a piston-contacting section that excludes the central axis line of the piston and the piston is provided with an engagement hole capable of engaging with the protrusion. Symmetric with the piston-side first friction pad with a brake disc therebetween, a reaction pawl-side second friction pad is provided with a protrusion. As a result, it is possible to provide a vehicle disc brake in which the first friction pad and the second friction pad are both made to have a protrusion, reducing the possibility of incorrect assembly, and the friction pads themselves are made to be used in common, facilitating product management.

Abstract: A disc brake device for a vehicle, the disc brake device is equipped with: a piston slidably fitted into a cylinder hole provided in one arm section of a brake caliper, and capable of pressing against one friction pad; a shim plate mounted on a back plate of the one friction pad and interposed between the back plate and the piston; and a pressing device that applies pressing force to the piston while causing rotational force to act on the piston. Multiple protrusions protruding toward the piston are provided, with intervals between the protrusions, on the back plate of the friction pad facing the piston with the shim plate therebetween, and multiple engaging holes, into which the multiple protrusions are fitted, are provided on the shim plate so as to prevent the shim plate from rotating together with the piston due to the rotational force.

Abstract: An impact rod is vertically guided within a guide cylinder to drop into a glass bottle to be tested which is held vertically below by a bottle gripper, the impact rod thereby striking the bottom of the bottle with preset impact force. A plurality of these guide cylinders with respective impact rods and corresponding bottle grippers are supported on structures revolving unitarily around a pole, the bottle grippers operating to grip successively bottles supplied from a production line and to carry the bottles around a partial circle as they are tested by the corresponding impact rods which are operated by adjustable cam action. The impact force is adjustably variable by adjusting the height of drop and/or weight of the impact rod.