Abstract: A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is present, the automatic brake control unit changes a manner of increasing braking forces of the front and rear brakes according to the brake operation by the driver.

Abstract: A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is absent, the automatic brake control unit first actuates only the rear brake to generate a rear wheel braking force, and also actuates the front brake 2 to generate a front wheel braking force.

Abstract: A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is present, the automatic brake control unit changes a manner of increasing braking forces of the front and rear brakes according to the brake operation by the driver.

Abstract: A brake modulator controls actuation of front and rear brakes, and includes a collision possibility determining unit, an automatic brake control unit, and a brake operation determining unit. When the collision possibility determining unit determines that there is a possibility of collision, and the brake operation determining unit determines that brake operation by a driver is absent, the automatic brake control unit first actuates only the rear brake to generate a rear wheel braking force, and also actuates the front brake 2 to generate a front wheel braking force.

Abstract: In a gear pump equipped with a pump assembly formed from a driving gear supported by a driving shaft, a driven gear supported by a driven shaft, a pair of side plates disposed at both sides in an axial direction of driving and driven shafts, and a seal block that seals tips of the gears and forms a first fluid chamber by installation onto the side plates, and a casing that houses the pump assembly and forms a second fluid chamber therein, ribs are provided for at least one member of the side plates or the seal block, and fluid tightness between the first and second fluid chambers is secured by exerting pressure between the side plates and seal block and additionally plastically deforming the ribs. By this, it is possible to provide the gear pump which is capable of achieving improvement of the seal integrity while reducing the parts count.

Abstract: An apparatus comprising a tandem pump which includes first and second pump sections driven by a rotation shaft, and a housing defining a pump receiving portion including a first pump chamber receiving the first pump section and a second pump chamber receiving the second pump section. The first and second pump chambers are separated by a partition. The partition is positioned by the housing at least in the axial direction of the rotation shaft.

Abstract: A brake control device includes: a braking-effort-sensing device for sensing braking efforts of vehicle wheels; an actuator for applying braking efforts to the vehicle wheels; and a control device for controlling the braking efforts of the vehicle wheels by controlling the actuator, wherein the control device: computes desired braking efforts of the vehicle wheels; and when the desired braking efforts of left and right wheels of the vehicle wheels are equal to each other. The brake control device performs a braking effort correction of allowing the braking effort of one of the left and right wheels to approach the braking effort of the other of the left and right wheels.

Abstract: A brake control apparatus of an automotive vehicle employs a pump incorporated in a hydraulic actuator, a separate pressure control valve disposed between the pump and each individual wheel-brake cylinder and having an orifice having a predetermined orifice-constriction flow passage area, and vehicle sensors including at least wheel cylinder pressure sensors. Also provided is a controller configured to be connected to the vehicle sensors and the hydraulic actuator, for calculating, based on a driver's manipulated variable, target wheel cylinder pressures, and for controlling the hydraulic actuator responsively to the target wheel cylinder pressures. The controller is further configured for calculating a fluid-pressure deviation between the target wheel cylinder pressure and the actual wheel cylinder pressure, and for stopping working-fluid supply from the pump to the abnormal wheel-brake cylinder having an abnormality in the fluid-pressure deviation exceeding a predetermined threshold value.

Abstract: A brake control apparatus including a reservoir tank, a housing, a pump within the housing, a suction port formed in the housing and communicated with a suction portion of the pump, a discharge port formed in the housing and communicating a discharge portion of the pump with wheel cylinders, a suction pipe connecting the suction port and the reservoir tank, and a reservoir chamber disposed within the housing between the suction portion of the pump and the suction port. The reservoir chamber has a volume capable of reserving at least a predetermined amount of the brake fluid which is required for one-time braking at a maximum fluid pressure.

Abstract: In a gear pump equipped with a pump assembly formed from a driving gear supported by a driving shaft, a driven gear supported by a driven shaft, a pair of side plates disposed at both sides in an axial direction of driving and driven shafts, and a seal block that seals tips of the gears and forms a first fluid chamber by installation onto the side plates, and a casing that houses the pump assembly and forms a second fluid chamber therein, ribs are provided for at least one member of the side plates or the seal block, and fluid tightness between the first and second fluid chambers is secured by exerting pressure between the side plates and seal block and additionally plastically deforming the ribs. By this, it is possible to provide the gear pump which is capable of achieving improvement of the seal integrity while reducing the parts count.

Abstract: In a brake control system for a vehicle employing a brake-by-wire (BBW) hydraulic control unit, a master cylinder serves as a first fluid pressure source and a pump serves as a second fluid pressure source operated during a BBW system normal brake operating mode. Also provided is a manual-brake hydraulic circuit capable of supplying hydraulic pressure from the master cylinder to the wheel-brake cylinder during a fail-safe operating mode. A back-flow prevention device is disposed in a pump outlet passage, intercommunicating the manual-brake hydraulic circuit and the pump outlet, for permitting free flow in one direction from the pump to the wheel cylinder. A normally-open inflow valve is disposed in the pump outlet passage downstream of the back-flow prevention device. A normally-open shutoff valve is disposed in the manual-brake hydraulic circuit upstream of the normally-open inflow valve, and unactuated and opened during the fail-safe operating mode.