| Patent Number |
Title Of Patent |
Date Issued |
| 6957871 |
Vehicle brake device |
October 25, 2005 |
| A more reliable hydraulic brake device is proposed which is capable of regenerative cooperative control and eliminates wasteful consumption of electric power. In a hydraulic brake device capable of regenerative cooperative control, a hydraulic pressure adjusting device is provided to |
| 6957669 |
Hydraulic accumulator |
October 25, 2005 |
| A hydraulic accumulator A to be removably attached to a support member includes a liquid chamber R2b having a predetermined volume even when no pressurized operating liquid is accumulated, and communicating with a liquid inflow port Pi and a liquid outflow port Po, which are disposed |
| 6955407 |
Negative pressure type brake hydraulic pressure generating device |
October 18, 2005 |
| A negative pressure type brake hydraulic pressure generating device is proposed in which the stroke on the operating side can be set independently of the stroke on the output side. A slide resistance imparting means is provided between the fixed shell and a piston having a built-in c |
| 6955047 |
Master cylinder |
October 18, 2005 |
| Disclosed is a master cylinder wherein a seal member is given plural seal functions to reduce the number of seal members for partitioning a drain portion of the master cylinder, a constant-pressure chamber of a booster and the atmosphere from one another, so that the master cylinder is |
| 6954690 |
Vehicle movement stabilizing device |
October 11, 2005 |
| A vehicle movement stabilizing device is provided which in effectively functioning braking, acceleration and turning movement during travel of the vehicle by activating the frictional force adding device, reliably controls the start and end of the operation of the frictional force adding |
| 6952635 |
Road condition estimation apparatus |
October 4, 2005 |
| The present invention is directed to a road condition estimation apparatus for estimating a road condition for use in a vehicle having a steering control unit for actuating a device mechanically independent of a manually operated steering member to steer at least a wheel of front and rea |
| 6951199 |
Vacuum generator in combustion engine |
October 4, 2005 |
| A vacuum generator is provided wherein the intake vacuum of a combustion engine is led to a negative pressure device such as a vacuum booster of a brake booster device through a check valve. An idling air passage is connected to a suction pipe of the combustion engine to bypass a throttl |
| 6941214 |
Vehicle lateral movement stabilizing device |
September 6, 2005 |
| The aim is to stably control the lateral movement of a vehicle even on a road where the frictional coefficient is extremely small, such as on a frozen road, thereby improving the turnability and travelling stability. The device includes a frictional force adding means for increasing the |
| 6941213 |
Road condition estimation apparatus |
September 6, 2005 |
| The present invention is directed to a road condition estimation apparatus for estimating a road condition for use in a vehicle having steering control unit for actuating a device mechanically independent of a manually operated steering member to steer each wheel. The apparatus includes |
| 6938471 |
Methods of measuring pressure of hydraulic fluid, methods of evaluating soundness and hydraulic |
September 6, 2005 |
| A method is provided for measuring a pressure of a hydraulic fluid that is supplied from a hydraulic fluid control device (1) to a operation device (6). The method includes measurement of a first pressure (Pm) and a second pressure (Pa). The first pressure is the pressure of the hydrauli |
| 6931313 |
Vehicular steering device |
August 16, 2005 |
| A first ECU 30 detects a steering torque applied to a steering system, estimates a self-aligning torque generated in a front wheel on the basis of the steering torque, and estimates a side force for the front wheel on the basis of lateral acceleration and a yaw rate. The first ECU 30 |
| 6928815 |
Master cylinder having a seal retainer |
August 16, 2005 |
| The present invention is directed to a master cylinder provided with an annular seal member (S1) having an annular groove of U-shaped cross section formed on its one end face, and a substantially annular seal retainer (30) for restricting at least axial movement of the seal member, a |
| 6928355 |
Vehicular antiskid control apparatus and antiskid control method |
August 9, 2005 |
| If a condition for starting a yaw control during an antiskid control is met while the antiskid control is being executed on one of right and left front wheels during braking on a uneven friction-coeffient road surface, the reference value for making the determination to start the antiski |
| 6927681 |
Mixed air amount alarm device |
August 9, 2005 |
| A mixed air amount alarm device is provided which determines the amount of air present in a hydraulic circuit between a hydraulic pressure source and an instrument driven by hydraulic pressure, and produces an alarm if the air amount is excessive, a situation is prevented in which an ala |
| 6926124 |
Floating disk brake |
August 9, 2005 |
| A floating disk brake having a caliper designed so as to be movable more freely in the radial direction of the rotor following any run-out or thermal expansion of the rotor and movable less freely in the tangential direction of the rotor to reduce uneven wear of the pads, thereby pro |
| 6925371 |
Vehicle motion control apparatus |
August 2, 2005 |
| The present invention is directed to a vehicle motion control apparatus, which includes a steering factor detection unit for detecting at least one of steering factors including a steering torque and steering effort applied to a steering system, an aligning torque estimation unit for |
| 6923513 |
Vehicle brake squeal control device |
August 2, 2005 |
| A brake squeal control device is proposed in which specific control for reducing brake squeals can be carried out to meet the will of a driver, and squeal control conditions for starting squeal reduction can be set individually to meet the requirements of drivers. Signals from wheel spee |
| 6910746 |
Motion control device of vehicle |
June 28, 2005 |
| A motion control device 10 for a vehicle exerts braking force only on the rear wheel at the inner side of the turning direction for generating a yawing moment on the vehicle only in the turning direction of the vehicle when an absolute value of an actual lateral acceleration Gy is not mo |
| 6910745 |
Check valve with vibration prevention function |
June 28, 2005 |
| In a check valve of the present invention, when a pressure action direction of a fluid on a valve body is assumed to be X, a spring receiving surface that abuts with a seat surface that is at one end in an axial direction of the helical compression spring is made to incline with respect |
| 6908160 |
Hydraulic brake apparatus for a vehicle |
June 21, 2005 |
| The present invention is directed to a hydraulic brake apparatus provided with a pressure source for generating hydraulic pressure, a hydraulic pressure boosting device having a pressure regulating valve for regulating the hydraulic pressure generated by the pressure source in response t |
| 6907731 |
Master cylinder apparatus |
June 21, 2005 |
| A master cylinder apparatus is provided with a master cylinder and a booster. The booster comprises a booster shell whose interior is divided into a variable and constant pressure chambers. The master cylinder comprises a master piston inserted in a cylinder body. The cylinder body i |
| 6905321 |
Rotary pump for braking apparatus |
June 14, 2005 |
| In a rotary pump for a braking apparatus, a discharge trench is formed on an axial direction end surface of a second side plate that forms a mechanical seal. As a result, rotors are pressed back toward a side of a first side plate by a discharge pressure of brake fluid channeled to the |
| 6898976 |
Brake noise detection device |
May 31, 2005 |
| An output signal that accords with a rotation speed of a brake rotor of a respective wheel is output by a vehicle wheel speed sensor. A noise frequency identification portion identifies a frequency component that corresponds to brake noise from this output signal. It is possible, for |
| 6895317 |
Wheel grip factor estimation apparatus |
May 17, 2005 |
| The present invention is directed to a wheel grip factor estimation apparatus, which includes a steering factor detection unit for detecting at least one of steering factors including a steering torque and steering effort applied to a steering system extending from a steering wheel to a |
| 6892758 |
Check valve with vibration prevention function for valve body |
May 17, 2005 |
| A transmission member that transmits urging force of a helical spring to a valve body is disposed between the valve body and the helical spring. The transmission member changes a direction of an urging force transmitted to the valve body such that the urging force is oblique to a pressur |
| 6883415 |
Brake booster device |
April 26, 2005 |
| A brake booster device for use in a brake system of vehicles is provided with a partition member dividing the interior of the booster shell into front and rear chambers and a piston movable bodily with the partition member within the booster shell. A control valve body is carried on the |
| 6877821 |
Vehicular motor-driven brake device |
April 12, 2005 |
| A vehicular motor-driven brake apparatus includes an open circuit in which reciprocation of a master cylinder generating a brake pressure is caused by an actuator that operates according to a pedal operation amount, and brake fluid discharged from a wheel cylinder during pressure decreas |
| 6871728 |
Vehicle brake device |
March 29, 2005 |
| A vehicle brake device having a hydraulic pressure generating source is proposed which can reliably prevent dragging and ensure the initial response of brakes during braking. In a brake fluid supply passage from the master cylinder to the wheel cylinder, a brake fluid circulating pas |
| 6871672 |
Bellows-type hydraulic accumulator |
March 29, 2005 |
| A bellows-type hydraulic accumulator includes a shell, a bellows unit, and a stay in order to accumulate pressurized liquid within a liquid chamber, divided into a fixed-volume liquid chamber and a variable-volume liquid chamber communicating with the fixed-volume liquid chamber via a |
| 6871670 |
Metal bellows accumulator |
March 29, 2005 |
| In a metal bellows accumulator, a metallic bellows unit is disposed within a pressure space defined in a main shell, and one end of the metallic bellows unit is fixedly secured to one end wall of the main shell. The metallic bellows unit sections the pressure space into an outer chamber |
| 6863354 |
Hydraulic brake pressure control device of load responsive type |
March 8, 2005 |
| In a hydraulic brake pressure control device of a load responsive type, a housing is attached to one of a rear wheel side member and a vehicle body side member which are connected with each other through a suspension mechanism and a lever is carried on the housing through a pivot axis to |
| 6851766 |
Traction control apparatus for vehicle |
February 8, 2005 |
| A traction control apparatus for a vehicle sets an allowable slip ratio to a constant value that is rather great, when the shift position of a sub-transmission is in "H4", or the shift position of the sub-transmission is in "L4" and the difference between the maximum value and the minimu |
| 6851720 |
Hydraulic joint structure |
February 8, 2005 |
| In a hydraulic joint structure for joining respective tubular joint portions of two members, opposed pressure-contact surfaces of the two members for preventing loosening form a downstream space on the downstream side of a seal member. A passage is formed on the pressure-contact surf |
| 6845852 |
Brake control apparatus obtaining braking force by pressing of friction member using motor |
January 25, 2005 |
| A vehicular brake apparatus, which is provided at a shaft of a motor that revolves due to depression of a brake pedal, has a variable gear mechanism including a non-circular spur gear that changes a reduction ratio from a high gear ratio to a low gear ratio along with revolution. Revolut |
| 6844812 |
Vehicular brake warning apparatus issuing warning when target deceleration differs from actual d |
January 18, 2005 |
| A brake operation amount detection device detects an operation amount of a brake pedal, and a target deceleration computation device computes a target deceleration corresponding to an operation amount that the driver intends to achieve. Further, an actual deceleration calculation device |
| 6808160 |
Solenoid valve |
October 26, 2004 |
| According to the present invention, a cylindrical member of a solenoid valve is provided with a protruding portion that protrudes in an axial direction of the cylindrical member. By fitting the protruding portion into a vertical groove of a plunger, it is possible to restrict the cyl |
| 6805166 |
Bellows-type hydraulic accumulator |
October 19, 2004 |
| A bellows-type hydraulic accumulator includes a main shell defining a pressure space, and a bellows unit sectioning the pressure space into a gas chamber and a liquid chamber. An auxiliary shell is disposed inside the liquid chamber and fixed to the main shell. The auxiliary shell has an |
| 6796125 |
Master cylinder |
September 28, 2004 |
| A master cylinder includes a cylinder housing having a cylinder bore, a seal cup disposed inside the cylinder bore, and a piston slidably disposed in the cylinder bore in sliding contact with the seal cup and defining a pressure chamber in cooperation with the housing and the seal cup. T |
| 6789857 |
Vehicle brake hydraulic pressure generator |
September 14, 2004 |
| An improved brake hydraulic pressure generating device is provided in which the hydraulic pressure supplied from a hydraulic pressure source is adjusted to a value corresponding to the brake operating force by means of a pressure adjusting valve which is activated according to displaceme |
| 6789389 |
Piston-cylinder mechanisms and pressure control units utilizing such piston-cylinder mechanisms |
September 14, 2004 |
| A piston-cylinder mechanism includes a cylinder (50) that defines a cylindrical bore (51). Two pistons (52, 53) are disposed within the cylindrical bore, so that a first pressure chamber (57), a second pressure chamber (58) and a third pressure chamber (59) are defined within the cyl |
| 6789038 |
Tire condition estimating apparatus and method |
September 7, 2004 |
| An apparatus and method to estimate the condition amount of a vehicle tire in a vehicle equipped with vehicle wheels formed with air enclosed under pressure in an inside portion of a tire mounted to a disc wheel. A plurality of wheel speed sensors detect the vehicle speed of each vehicle |
| 6789008 |
Vehicle control device with power steering device |
September 7, 2004 |
| A vehicle control device incorporating an electric power steering is provided, wherein an extraordinary yaw motion acting on a vehicle is detected and is suppressed or moderated, so that the stability of the vehicle in a straight-ahead steering is improved. The causes of the extraord |
| 6779990 |
Bearing mechanism and a pump |
August 24, 2004 |
| A bearing mechanism comprises a shaft rotatably supported by a bearing accommodated in a cylindrical bearing accommodating portion. The shaft is applied with varying load in response to a slidable movement of a pair of pistons so as to be displaced in a direction. The bearing is displace |
| 6719267 |
Magnet valve and fluid control apparatus using the same |
April 13, 2004 |
| A leaf spring for urging a spool toward a flange part of a yoke is provided between a guide fixed to a housing and the spool. Owing to the urging force of the leaf spring, the spool is pressed against the flange part of the yoke, and the yoke can be pressed against the cover through the |
| 6709072 |
Hydraulic brake system for vehicles |
March 23, 2004 |
| In a vehicle hydraulic brake system of a type adapted to release brake fluid discharged from the wheel cylinders into a reservoir for a master cylinder during pressure reduction phase of antilock brake control or vehicle stability control, the volume of the pressure chamber of the ma |
| 6652041 |
Hydraulic pressure control device for vehicle and vehicle brake system using the same |
November 25, 2003 |
| A hydraulic pressure control device is proposed in which using a proportional pressure control valve having a built-in spool valve, the hydraulic pressure for wheel brakes is adjusted to a value corresponding to the magnitude of an external force applied to the spool valve, non-elect |
