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Class 303/11 - Pressure control


Subclass of Class 303 - Fluid-pressure and analogous brake systems
Definition: The action of the pump is controlled by the pressure of
No. of patents: 213
Last issue date: 05/29/2012


1            
NumberTitleIssue Date
8186770Electronically triggerable vehicle brake system operating on the return principle, and method for controlling or regulating the system
A method for controlling and/or regulating an electronically triggerable vehicle brake system, operating on the return principle, and to such a brake system in which by an adapted triggering of the drive motor for the pressure generator, the pumping quantity of the ...
05/29/2012
8172339Compressed air supply system for a utility vehicle
A compressed air supply system for a utility vehicle includes a compressor that can be driven by a drive by a pneumatic clutch, and a valve that can be actuated by an electrical signal for the selective supply of compressed air to a control input of the clutch. The ...
05/08/2012
8123307Brake boost control apparatus
A brake boost control apparatus has a brake operation member, a master cylinder, a wheel cylinder, a hydraulic pump, a master cylinder pressure detection section detecting a pressure of the brake fluid, a brake stroke amount detection section detecting a stroke amou...
02/28/2012
8066338Vehicle brake controller and vehicle brake control method
Each time a prescribed cycle comes to an end, an ECU estimates an average retaining amount of brake fluid in a reservoir of the current prescribed cycle on the assumption that a pump has sucked a constant amount of brake fluid in the current prescribed cycle. The EC...
11/29/2011
8052226Electronic control brake system having simulation function
Disclosed is an electronic control brake system capable of ensuing pedal force upon regenerative braking or brake-by-wire control. The electronic control brake system having a simulation function includes a master cylinder for forming oil pressure corresponding to d...
11/08/2011
8047618Brake system for a motor vehicle
A braking system for a motor vehicle includes a hydraulic circuit for producing a brake force, the hydraulic circuit having a pressure source for producing a hydraulic pressure and a pressure store, the pressure store of the hydraulic circuit being able to be suppli...
11/01/2011
7992946Method for operating a brake system of a motor vehicle
A method for operating a brake system of a motor vehicle, which has at least one operating mode (normal, sporty, etc.), includes prefilling, to at least partially overcome a clearance of one or a plurality of wheel brake(s) prior to an expected actuation of a brake ...
08/09/2011
7976108Vehicle brake hydraulic pressure control system
A controller which controls an electric motor in such a manner that a rotational speed detected in a motor rotational speed detecting module 29 becomes a target rotational speed set in a target rotational speed setting module 37 controls, when a deviat...
07/12/2011
7938493Brake control system and brake control method
A brake control system includes a wheel cylinder, a brake pedal, a master cylinder in which communication between it and an external master cylinder reservoir is cut off when the operating amount of the brake pedal is equal to or greater than a predetermined value, ...
05/10/2011
7871135Vehicle motion control apparatus
This apparatus is applied to a vehicle brake apparatus provided with a hydraulic booster operated by utilizing an accumulator hydraulic pressure that is adjusted to a predetermined high pressure (not less than a lower limit value) by a drive control of a hydraulic p...
01/18/2011
7857397Braking system
A braking system includes first and second electromagnetic opening valves and a bleeding mode setting unit. The first electromagnetic opening and closing valve is provided to a first brake fluid channel to communicate or block a first fluid pressure from a master cy...
12/28/2010
7753455Working machine
A working machine, such as an industrial truck, has working hydraulics, a hydraulic steering device, and a spring-loaded brake. The brake has a braking position and a release position and can be acted upon by a brake-release pressure, which is passed in a brake line...
07/13/2010
7654619Method for braking a vehicle by means of a fluidically triggered vehicle brake system, and vehicle brake system
In a method for braking a vehicle by means of a fluidically triggerable vehicle brake system, wherein the vehicle brake system comprises a respective fluidically triggerable brake unit that is assigned to a vehicle wheel and is fluidically coupled to a brake force g...
02/02/2010
7648212Vehicle motion control apparatus
This apparatus is applied to a vehicle brake apparatus provided with a hydraulic booster operated by utilizing an accumulator hydraulic pressure that is adjusted to a predetermined high pressure (not less than a lower limit value) by a drive control of a hydraulic p...
01/19/2010
7644995Motor speed control for thermal protection
The speed of an ABS pump motor is increased during an ABS braking cycle upon determining that an extended ABS braking cycle duration is required. ...
01/12/2010
7621603Vehicle brake control device
When the ABS control is executed by the ABS control portion, the vehicle brake control device calculates the first rotational speeds of the first and second motors necessary to achieve the corresponding pressure increase rates and calculates the second rotational sp...
11/24/2009
7621602Vehicle brake control device
A vehicle brake control device determines a first duty factor required to achieve a stable rotational speed of motors and a second duty factor required to achieve a change rate of a target wheel cylinder pressure. The vehicle brake control device selects the larger ...
11/24/2009
7527339Brake control system for a motor vehicle
A brake control system for a motor vehicle comprising a brake control unit which controls increasing and decreasing of a brake pressure of a wheel cylinder from a pressure source by driving plural solenoid valves without a brake operation by a driver. The system com...
05/05/2009
7469974Vehicle brake control device
During normal braking, a brake fluid supply route is used through which brake fluid is supplied from a master reservoir to wheel cylinders to using first to fourth pumps. When an abnormality occurs, a route is used through which a master cylinder pressure, which is ...
12/30/2008
7461906Method for changing the pressure medium in an electrohydraulic braking system
The invention solves the problem of supplying fresh fluid, in particular in electrohydraulic brake systems, to all areas of the conduit systems that are not reached in a conventional brake fluid change. Therefore, the invention provides that a change of the p...
12/09/2008
7445298Brake control apparatus for vehicle
A brake control apparatus for a vehicle includes: controlling means having timing means for timing an elapsed time from a brake operation starting time, and extended period of time calculating means obtaining an extended period of time based upon a target wheel cyli...
11/04/2008
7422294Vehicle brake system and vehicle control method
When an abnormality detection unit detects an abnormality in a vehicle brake system, a heat generation suppression unit operates the motor intermittently to suppress heat generation by the motor. A pressure increase determination unit determines whether there is a n...
09/09/2008
7416263Method and device for improving pressure build-up dynamics
The present invention relates to a device and method for controlling the braking system of a vehicle equipped with a wheel slip control system. In this context, the wheel slip control system is in a position, when certain conditions are met, to initiate the buildup ...
08/26/2008
7413263Modulator noise reduction via motor control
The invention provides a method for controlling a vehicle with a braking system including a modulator pump. A first fluid line can communicate brake fluid from the master cylinder to a brake caliper. An isolation valve including a pressure bypass can be disposed alo...
08/19/2008
7390174Piston pump
A piston pump (10) for a hydraulic consumer of an electronically controlled vehicle brake system, carries a stepped piston (50, 50′) and centers a sealing assembly (26, 26′) which is retained in an axial direction Ax by a step (52, 52′
06/24/2008
7383735Pressure transducer package for a manifold
A package designed for monitoring fluid pressure in a manifold includes one or more pressure transducers and a microprocessor incorporated into a package to form a single, modular fluid pressure sensing device. The transducers may be arranged on one or more substrat...
06/10/2008
7360848Parallel relay circuit for hydraulic braking device
In a parallel relay circuit, only one of a plurality of relays is turned on sequentially while turning the rest of the relays off. It is determined whether the motor is applied with voltage via a voltage detection resistor when each of the relays is turned on indivi...
04/22/2008
7347304System for control of brake actuator
A vehicle brake system includes a brake actuator, a brake controller operative to control the brake actuator, and at least one position sensor which senses a current position of at least one moveable brake component and provides a current position signal indicative ...
03/25/2008
7344201Vehicle air braking systems
An electronic control system for the compressor of a vehicle air braking system, the control system having one or more inputs indicative of a vehicle operating state, and an output for determining whether a compressor is on-load or off-load, the system further inclu...
03/18/2008
7325886Vehicular brake control system
In a vehicular brake control system in which pressure upstream of a plurality of pressure increase control valves is variable, a brake control ECU sets a value of a current supplied to a solenoid coil in each of the pressure increase control valves in accordance wit...
02/05/2008
7325883Hydraulic braking system featuring selectively-coupled pump suction circuits
An automotive braking system controls the flow of pressurized brake fluid from a tandem master cylinder to several wheel brakes via a pair of braking circuits. Each circuit features a pressure relief line having, in series, a normally-closed valve, low-pressure accu...
02/05/2008
7309112Braking system having valve device for delivering pressurized fluid to brake cylinder selectively from at least two pressurizing chambers or only one of them
Braking system including a master cylinder having at least two pressurizing pistons partially defining at least two mutually isolated pressurizing chambers, and wherein a working fluid in each pressurizing chamber is pressurized by an advancing movement of the corre...
12/18/2007
7306295Pump system for parking brakes for a rail vehicle
The present disclosure relates to a pump system for parking brakes for a rail vehicle. The pump system includes at least one actuator, at least one pump and a reservoir as a fluid source. Also included is a manifold in fluid communication with the reservoir and the ...
12/11/2007
7303241Pump drive motor control apparatus
A pump drive motor control apparatus controls a motor used for driving a hydraulic pump. Every time the supply of electricity to the motor is resumed (every time the motor control signal changes from a low level to a high level), the apparatus measures a time which ...
12/04/2007
7293841Hydraulic motor and brake control system and method of controlling the same
A hydraulic control system for operating at least one hydraulic motor and at least one hydraulic brake. In one specific embodiment of the invention, the hydraulic motor and brake are part of an industrial vehicle. ...
11/13/2007
7290841Hydraulic braking system including power-operated pressure source device, and device for controlling pressure output of the pressure source device
Braking system including a power-operated hydraulic pressure source operable to deliver a pressurized working fluid, a brake including a hydraulically operated brake cylinder, and a flow-rate changing device disposed between the power-operated hydraulic pressure sou...
11/06/2007
7290840Vehicle brake system
A brake system for a vehicle is comprised of a first brake system that mechanically applies a braking force to wheels according to a master cylinder hydraulic pressure outputted from a master cylinder which receives a brake manipulation force of a driver, and a seco...
11/06/2007
7264318Brake pressure control arrangement
In a method for joining at least two work pieces by friction stir welding wherein the work pieces are placed placed in overlapping relationship and are at least partially plasticized in the area where they are to be joined by a rotating friction tool provided with a...
09/04/2007
7249806Hydraulic motor and brake control system and method of controlling the same
A hydraulic control system for operating at least one hydraulic motor and at least one hydraulic brake. In one specific embodiment of the invention, the hydraulic motor and brake are part of an industrial vehicle. ...
07/31/2007
7234786Vehicular brake control apparatus and vehicular brake control method
A vehicular brake control apparatus detects risky occasions and locations that may be risky by using, for example, an infrastructure information input device or a navigation device, and, for such locations and the like, performs the pre-charge so that braking force ...
06/26/2007
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