Abstract: The present invention provides a vehicle locating system and a vehicle locating device capable of reducing a risk that, when it is attempted to identify a location of a vehicle as a detection target by using a device on the outside of the vehicle, the vehicle cannot be detected due to overlap of the vehicle and another vehicle or an obstacle located in front when seen from a detector. A vehicle locating system (1) includes: a portion (21) to be detected that is provided to a vehicle (20) and extends upward to a height at least exceeding a roof top; a detector (5) that detects the portion (21) to be detected; and a vehicle locating device (50) that identifies a location of the vehicle (20) on map data on the basis of detection information on the detected portion (21) to be detected.

Abstract: The invention relates to a pressure accumulator, especially for a hydraulic unit of a hydraulic vehicle braking system with electronic wheel slip regulation. Pressure accumulators having an accumulator piston acted on by a piston spring are known according to prior art. In order to save costs on parts for the piston spring and to save space in terms of the pressure accumulator, a piston spring having at least one first spring winding is used. According to the invention, the outer diameter of the first winding is smaller than the inner diameter of a second spring winding connected thereto.

Abstract: A stopper formed of a magnetic material and forming a portion of a magnetic circuit has a deformable portion that deforms in accordance with the pressure in a space within a sleeve. The deformable portion is provided with a pressure sensor that measures the amount of deformation of the deformable portion. The deformable portion, corresponding to a diaphragm, is formed in the stopper, which is a conventional electromagnetic valve component part. Therefore, it is no longer necessary to provide a diaphragm or a seal member.

Abstract: A vehicle brake device A is provided with a master cylinder 10 for generating a fluid pressure depending on the stepping state of a brake pedal 11 and a differential pressure control valve 43 constituted by a solenoid valve of the type that has two ports 43a, 43b and is capable of controlling the differential pressure between the both ports 43a and 43b. The differential pressure control valve 43 is connected at its port 43a to an outlet port 10a of the master cylinder 10. An ECU 70 controls the differential pressure control valve 43 to generate a controlled differential pressure corresponding to the pedal operation state of the brake pedal 11 between the both ports 43a and 43b. Thus, according to the vehicle brake device A, it can be realized to obtain a pedal feeling which is smooth without suffering any delay in response, to easily alter a reaction force property of the brake pedal for any of various vehicle models, and to decrease in cost as well as dimension.

Abstract: A vehicle brake device A is provided with a master cylinder 10, a reservoir tank 12, solenoid valves 46 and 48 for adjustably draining brake oil from outlet ports 10a, 10b of the master cylinder 10 to the reservoir tank 12, a collision detection sensor 68 for detecting a collision of the vehicle, a fluid pressure meter 61 for detecting the master cylinder pressure, and an ECU 70. The ECU 70 detects the pushing-up of the brake pedal 11 based on the occurrence of a collision and the master cylinder pressure, and upon detection of the pushing-up, controls the solenoid valves 46 and 48 to adjust the draining of the brake oil so that the brake pedal 11 is withdrawn. Thus, a time point when the brake pedal 11 begins to be pushed up by the cause of the vehicle collision can be detected accurately and reliably, and the brake pedal 11 can be withdrawn accurately in dependence on the pushing-up.

Abstract: A hydraulic pressure controller is provided which includes a hydraulic unit for controlling hydraulic pressure and an electronic control unit. The hydraulic unit includes a block in which are mounted electric actuators. The electronic control unit controls the electric actuators by applying electric signals thereto to control hydraulic pressure produced in the hydraulic unit to external elements in a controlled manner, thereby controlling the behavior of the vehicle. The electronic control unit includes a housing in which are mounted a circuit board and other electronic and electric parts, and a fitting portion provided on the housing so as to face one side of the block. At least one end portion of the block is received in the fitting portion and is engaged by a seal. The controller further includes a fastener for joining the block to the fitting portion.

Abstract: A brake hydraulic pressure control unit is proposed. It includes housing, a pump mounted in the housing, a reservoir for hydraulic fluid, and hydraulic pressure control valves. The pump is adapted to draw hydraulic fluid in the reservoir and return the thus drawn fluid into a hydraulic circuit. The hydraulic pressure valves are adapted to selectively discharge fluid in the hydraulic circuit into the reservoir, thereby controlling brake hydraulic pressure. The control unit may further include a pulsation damper for muffling noise produced from the pump. The reservoir and the pulsation damper are both separate members from the housing and are mounted to the housing. Thus, the volume of the housing and the capacities of the reservoir and the pulsation damper can be determined independently of each other.

Abstract: If a pressure sensor is increased in size and therefore the inside diameter of a yoke is increased, a stopper is provided with a large-diameter portion. The large-diameter portion makes it possible to reduce the air gap between the stopper and the yoke and therefore suppress an increase in magnetic resistance. Besides, a magnetic circuit member is provided at an outer peripheral side of a sleeve. The magnetic circuit member makes it possible to reduce the air gap between the yoke and an armature and therefore suppress an increase in magnetic resistance.

Abstract: If a pressure sensor is increased in size and therefore the inside diameter of a yoke is increased, a stopper is provided with a large-diameter portion. The large-diameter portion makes it possible to reduce the air gap between the stopper and the yoke and therefore suppress an increase in magnetic resistance. Besides, a magnetic circuit member is provided at an outer peripheral side of a sleeve. The magnetic circuit member makes it possible to reduce the air gap between the yoke and an armature and therefore suppress an increase in magnetic resistance.

Abstract: A stopper formed of a magnetic material and forming a portion of a magnetic circuit has a deformable portion that deforms in accordance with the pressure in a space within a sleeve. The deformable portion is provided with a pressure sensor that measures the amount of deformation of the deformable portion. The deformable portion, corresponding to a diaphragm, is formed in the stopper, which is a conventional electromagnetic valve component part. Therefore, it is no longer necessary to provide a diaphragm or a seal member.

Abstract: A vehicle brake device A is provided with a master cylinder 10, a reservoir tank 12, solenoid valves 46 and 48 for adjustably draining brake oil from outlet ports 10a, 10b of the master cylinder 10 to the reservoir tank 12, a collision detection sensor 68 for detecting a collision of the vehicle, a fluid pressure meter 61 for detecting the master cylinder pressure, and an ECU 70. The ECU 70 detects the pushing-up of the brake pedal 11 based on the occurrence of a collision and the master cylinder pressure, and upon detection of the pushing-up, controls the solenoid valves 46 and 48 to adjust the draining of the brake oil so that the brake pedal 11 is withdrawn. Thus, a time point when the brake pedal 11 begins to be pushed up by the cause of the vehicle collision can be detected accurately and reliably, and the brake pedal 11 can be withdrawn accurately in dependence on the pushing-up.

Abstract: A vehicle brake device A is provided with a master cylinder 10 for generating a fluid pressure depending on the stepping state of a brake pedal 11 and a differential pressure control valve 43 constituted by a solenoid valve of the type that has two ports 43a, 43b and is capable of controlling the differential pressure between the both ports 43a and 43b. The differential pressure control valve 43 is connected at its port 43a to an outlet port 10a of the master cylinder 10. An ECU 70 controls the differential pressure control valve 43 to generate a controlled differential pressure corresponding to the pedal operation state of the brake pedal 11 between the both ports 43a and 43b. Thus, according to the vehicle brake device A, it can be realized to obtain a pedal feeling which is smooth without suffering any delay in response, to easily alter a reaction force property of the brake pedal for any of various vehicle models, and to decrease in cost as well as dimension.

Abstract: A hydraulic pressure controller is provided which includes a hydraulic unit for controlling hydraulic pressure and an electronic control unit. The hydraulic unit includes a block in which are mounted electric actuators. The electronic control unit controls the electric actuators by applying electric signals thereto to control hydraulic pressure produced in the hydraulic unit to external elements in a controlled manner, thereby controlling the behavior of the vehicle. The electronic control unit includes a housing in which are mounted a circuit board and other electronic and electric parts, and a fitting portion provided on the housing so as to face one side of the block. The controller further includes a fastener for joining the block to the fitting portion.

Abstract: A hydraulic pressure controller for controlling the behavior of a vehicle on which the hydraulic pressure controller is mounted. It includes a hydraulic unit having a block in which are mounted hydraulic pumps and solenoid valves. A motor for driving the pumps and an electronic control unit for controlling the solenoid valves and the motor are joined to the block of the hydraulic unit. The motor is joined to the block of the hydraulic unit by threaded bolts. The threaded bolts are located radially inward of the radially outer surface of the motor. With this arrangement, the dimensions of the block can be determined independently of the outer diameter of the motor. It is thus possible to minimize the size and cost of the hydraulic pressure controller.

Abstract: A brake hydraulic pressure control unit is proposed. It includes housing, a pump mounted in the housing, a reservoir for hydraulic fluid, and hydraulic pressure control valves. The pump is adapted to draw hydraulic fluid in the reservoir and return the thus drawn fluid into a hydraulic circuit. The hydraulic pressure valves are adapted to selectively discharge fluid in the hydraulic circuit into the reservoir, thereby controlling brake hydraulic pressure. The control unit may further include a pulsation damper for muffling noise produced from the pump. The reservoir and the pulsation damper are both separate members from the housing and are mounted to the housing. Thus, the volume of the housing and the capacities of the reservoir and the pulsation damper can be determined independently of each other.

Abstract: An antilock modulator can maintain a short brake pedal stroke during normal braking operations, which improves the pedal feeling during antilock control, and can prevent unnecessary increases in the pump discharge pressure. The antilock modulator has a main fluid line connecting the wheel brake to the master cylinder and a line branching from the main fluid line and leading to the discharge end of the hydraulic pump. At the branching point is provided a differential pressure-responsive mechanism which shuts off fluid communication between the master cylinder and the discharge end of the pump when the pressure difference between the wheel brake and the master cylinder exceeds a predetermined value, and otherwise allows fluid communication therebetween.