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7517027 |
Hydraulic brake device
A normally closed secondary solenoid opening/closing valve 36 is provided along a secondary branched fluid pipe 35 establishing a communication between an accumulator 11 and a reservoir 8 ...
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7393065 |
Redundant braking system
Disclosed is a redundant braking system for a vehicle. A controller may monitor a status of a hydraulic braking system, and during vehicle travel, automatically switch to a modulated electric...
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7374253 |
Method for monitoring the air bleeding quality of an electrohydraulic braking system
The invention discloses a method for determining the air content of the brake fluid in a hydraulic braking system. This method also permits determining the quality of the bleeding of the braking...
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6805415 |
Brake device
When the increasing gradient of the operating power is larger than a predetermined gradient, if a master pressure PM 2 corresponding to a second predetermined operating power F 2 is larger than a...
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6705683 |
Method for monitoring the emergency braking capability of an electrohydraulic braking system
To monitor the emergency braking capability of an electro-hydraulic braking system (EHBwherein, during normal operation, the brake pressure in the wheel brakes is generated by means of a pressure...
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6494545 |
Apparatus for diagnosing accumulator based on fluid pressure in its fluid-tightly sealed state
A diagnosing apparatus for diagnosing an accumulator operable to store under pressure a pressurized fluid delivered from a high-pressure source and to supply the pressurized fluid to a...
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6425644 |
Braking pressure control apparatus having device for diagnosing manually operated hydraulic system
A braking pressure control apparatus for a hydraulically operated brake, including a first hydraulic system having a first hydraulic pressure source power-operated to pressurize a working fluid and...
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6354672 |
Braking system wherein brake cylinder is communicated with pedal-operated pressure source upon failure of pump-operated pressure source
A braking system including a brake cylinder, a first hydraulic pressure source having a first pump device for pressurizing a working fluid, a second hydraulic pressure source operable in response...
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6244672 |
Method and apparatus for controlling a brake system
A method and an apparatus for controlling a brake system, the brake pressure of at least one wheel brake being controlled electrically as a function of at least the braking request of the driver....
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6155653 |
Method and apparatus for pump activation during ABS/TCS control
A method and apparatus for controlling activation of a brake pump during controlled braking conditions include a controller for determining pump activation conditions based on four empirically...
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6109879 |
Fluid pressure source apparatus
A fluid pressure source apparatus includes a pump, an accumulator for receiving pressure from the pump, a pressure switch for detecting the pressure in the accumulator, an electric motor for...
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6082830 |
Brake system having variable pump pressure control and method of pressure control
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6062657 |
Brake failure compensation system and method
A system and method for providing braking to a vehicle having at least two brake sets intended to deliver braking forces for a decelerating rate in response to a braking force request wherein each...
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5884986 |
Anti-lock brake control system for automotive vehicles
An anti-lock brake control system for an automotive vehicle, comprises a wheel-brake cylinder adapted to provide a braking action, a hydraulic pressure actuating unit adapted to be fluidly...
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5826953 |
Hydraulic braking system especially for motor vehicles
A braking system is disclosed that has a manually-actuatable master cylinder having two pressure chambers. A first pressure chamber hydraulically controls a flow control valve through which the...
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5743598 |
Anti-skid control apparatus
A pressure control apparatus is operated to connect a wheel cylinder to a reservoir via a return fluid passage so that brake fluid will be stored in the reservoir to reduce the pressure. In...
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5695260 |
Control apparatus for detecting malfunctioning of pressure sensors in an automotive fluid pressure circuit
A control apparatus is provided for a fluid pressure circuit in a motor vehicle. The control apparatus may include a first fluid pressure detector that detects a fluid pressure in an accumulator,...
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5683149 |
Hydraulic pressure control apparatus having device for estimating amount of fluid in reservoir to which the fluid is discharged to reduce cylinder pressure
A vehicle brake cylinder pressure control apparatus wherein an amount of fluid flow into a reservoir is estimated based on vehicle deceleration and a pressure reducing time of the brake cylinder,...
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5031968 |
Electronically controlled brake device
An electronically controlled brake device for controlling a brake pressure according to a manual input. While the dynamic pressure line is functioning normally, the dynamic pressure acts on one end...
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4964676 |
Brake unit
A fail safe control for a brake unit with an integral hydraulic brake booster for a road vehicle with a hydraulic dual-circuit braking system having a static front-axle brake circuit and a static...
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4929036 |
Hydraulic brake pressure control device for a vehicle
A hydraulic brake pressure control device for a vehicle including a casing having first and second cylinder portions in coaxial arrangement and a pillar-like cylinder projecting portion which...
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4900103 |
Brake system with anti-skid control for motor vehicles
A brake system having anti-skid control for motor vehicles has a brake booster having a brake valve and an emergency brake piston, and a master brake cylinder, combined in one housing with the...
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4858737 |
Hydraulic braking device for automobile vehicle
The device comprises a tandem master cylinder, a booster high pressure fluid distributor, 2, a valve mechanism 4 to interconnect the master cylinder and the distributor selectively to a braking...
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4812777 |
Manually/electrically operated brake system
A manually/electrically operated brake system for applying a brake to a wheel of a vehicle, including a master cylinder operated by a brake operating member, to generate a manually controlled...
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4810042 |
Brake pressure control apparatus
A brake pressure control apparatus comprises a master cylinder (2), an auxiliary hydraulic power source (10), a booster (3), a comparator member (30), an inlet valve (28), a pressure raising member...
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4776646 |
Hydraulic vehicle brake system
A hydraulic vehicle brake system having a brake booster integrated in a housing and having a master cylinder unit comprising at least two master cylinder pistons with corresponding pressure...
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4717210 |
Brake-slip-controlled brake system
A brake-slip-controlled brake system with a brake-pedal-operated master cylinder (2) assisted by auxiliary energy, with valves (42 through 45 and 66 through 69) in the pressure medium supply lines...
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4708404 |
Hydraulic brake system with hydraulic brake force boosting
A brake system with hydraulic brake force boosting comprises a master cylinder (1), to which the wheel brakes (36 to 39, 36' to 39') are connected, as well as of an auxiliary-pressure supply system...
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4641893 |
Hydraulic braking pressure control apparatus for vehicles
Hydraulic braking pressure control apparatus having a casing provided therein with an input hydraulic chamber for receiving a hydraulic pressure from a master cylinder, an output hydraulic chamber...
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4629258 |
Hydraulic dual circuit brake system for road vehicles
A hydraulically power-assisted dual circuit brake system for road vehicles combined with an anti-locking brake system has a stepped tandem master cylinder and a primary piston. The primary piston...
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4555144 |
Method and apparatus for controlling and monitoring hydraulic brake slip
In the braking system of a motor vehicle, a hydraulically or electromagnetically actuatable valve is inserted into the return line to control and monitor hydraulic brake slip control devices...
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4530209 |
Control arrangement for a vehicular brake system with hydraulic brake booster
An arrangement for controlling the admission of a hydraulic fluid to respective wheel brake actuating cylinders either from an auxiliary pressure source or from a master cylinder includes a...
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4492413 |
Control arrangement for an antiskid hydraulic braking system of a vehicle
A control arrangement for use in a hydraulic braking system equipped with an antiskid control device and an auxiliary energy source and including a master cylinder device which is operated in...
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4489989 |
Auxiliary power assisted master cylinder arrangement for a vehicle brake system
In an auxiliary power assisted master cylinder arrangement for a vehicle brake system to generate a controlled brake pressure in associated wheel brake cylinders, there is provided a brake valve...
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4462642 |
Vehicle brake system
A vehicle brake system is proposed, which has a wheel brake cylinder that can be placed under pressure either by a main cylinder or by a servopressure supply apparatus, and which is further...
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4415210 |
Arrangement for controlling the pressure in brake actuating cylinders of a vehicle
An arrangement for controlling the pressure in brake actuating cylinders incorporated in a hydraulic vehicle braking system which is supplied with auxiliary energy includes a master cylinder device...
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4405181 |
Brake valve
A brake valve useable in conjunction with a vehicle braking system is monitored by an anti-locking device and operable by a brake pedal through a trailing or simulating spring. The brake valve is...
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4395072 |
Vehicular hydraulic brake system
A hydraulic braking system, particularly for motor vehicles equipped with anti-skid devices, includes a housing having at least one chamber accommodating a pressure control unit controlling the...
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4305624 |
Hydraulic brake actuation device for motor vehicles equipped with an antiskid system
A multiple circuit master cylinder comprising a plurality of master cylinders arranged in tandem with the pressure in each individual master cylinder being hydraulically controlled independently of...
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4264111 |
Hydraulic anti-skid device
An anti-skid device is provided with valving which establishes a first normal pressure transmission path between the master cylinder and the wheel brake cylinders via which an anti-skid pressure...
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4205884 |
Anti-skid braking system for a vehicle
An anti-skid braking system for a vehicle comprising a brake unit actuated by pressure generated in a master cylinder by driver actuation and a hydraulic control circuit for hydraulically...
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4132451 |
Anti skid control valve
A check valve is integrally formed on one end of an expansion valve slidably disposed in a first stepped bore and arranged to cut communication between the master cylinder and the brake units upon...
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4112682 |
Master cylinder assemblies
A booster operated master cylinder piston for use in an anti-skid braking system includes a modulator piston located between the master cylinder piston and the booster valve assembly. In the event...
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4072366 |
Anti-skid control apparatus
A hydraulic braking system for vehicles having front and rear wheel brakes energized from a master cylinder and wherein energization of the rear wheel brakes is interrupted by a cut-off valve which...
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3999808 |
Brake system with antiskid control
The brake system includes a master cylinder having a master-cylinder piston slidable in a working chamber, a power source and a pressure-control valve disposed in axial alignment with the piston....
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3973806 |
Powered brake system for vehicles
A powered brake system for vehicles including wheel brake cylinders, a pump powered hydraulic pressure source, a reservoir hydraulically connected to the pump powered hydraulic pressure source, a...
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3942844 |
Anti-skid control systems including an emergency accumulator for braking and skid control operations
An actuator arranged between a hydraulic brake master cylinder and vehicle wheels for permitting the delivery therethrough of the braking pressure from the former to the latter includes solenoids...
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3927915 |
Vehicle anti-lock brake system with booster device
A vehicle brake system including at least one master cylinder, a power piston operatively connected with the master cylinder, a pressure chamber defined at a side of the power piston opposite to...
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3923344 |
Skid control arrangement of a automotive braking system
For the purpose of enabling a skid control arrangement of an automotive hydraulic braking system to be operable over an increased range of operating fluid pressure, the skid control arrangement is...
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3922023 |
Vehicle hydraulic braking system with independent brake circuits
A braking system includes a booster operated master cylinder assembly having three angularly spaced, parallel master cylinders each connected into an independent brake circuit. A pedal-operated...
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