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Fluid-pressure and analogous brake systems May archived by USPTO category 05/09

20090134697 - Combined service brake and stored-energy brake cylinder with internal ventilation: A combined service brake and the stored-energy brake cylinder is provided, in which a ventilation valve which forms or shuts off a flow connection between the spring chamber and the service brake chamber of the brake cylinder ensures that disruptive noise is avoided while also preventing loss of air volume... Agent: Crowell & Moring LLP Intellectual Property Group

20090134698 - Method for brake pressure distribution between the axles of a vehicle: A method is provided for brake pressure distribution between the axles of a vehicle with a pressure medium brake, which vehicle includes rotational speed sensors, which rotational speed sensors are assigned to wheels which can be braked and which rotational speed sensors serve as actual value sensors. The brake pressure... Agent: Crowell & Moring LLP Intellectual Property Group

20090127925 - Linear single channel hydraulic control unit: A hydraulic control unit for a motor vehicle having a motor providing a drive shaft driving a rotatable piston bearing surface at a proximal end of the motor, a hydraulic block providing cavities housing a pumping assembly and fluid control valves, and a control section providing solenoid coils receiving portions... Agent: Delphi Technologies, Inc.

20090127926 - Compressed 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 electrical... Agent: Crowell & Moring LLP Intellectual Property Group

20090127927 - Device for controlling hydraulic braking of a trailer hitched to a tractor: A hydraulic circuit having a brake pipe suitable for being connected to a pressurized fluid source or to a pressure-free reservoir, i.e. to a reservoir without excess pressure, via a proportional pressure reducer controlled by an electronic control unit (ECU). The circuit includes link solenoid-valve means suitable for connecting the... Agent: Ladas & Parry LLP

20090127928 - Travel control device for work vehicle and work vehicle: A travel control device for a work vehicle includes: a hydraulic pump; a plurality of hydraulic motors connected to the hydraulic pump in parallel through a closed-circuit connection, that drive different wheels with pressure oil delivered from the hydraulic pump; a slip detection device that detects a slip occurring at... Agent: Crowell & Moring LLP Intellectual Property Group

20090127929 - Brake control apparatus: A brake control apparatus includes a braking force applying apparatus for applying a braking force to each of a plurality of wheels adapted to a vehicle, a braking force testing device for testing the braking force of a predetermined malfunction test subject wheel by controlling the braking force applied thereto... Agent: Buchanan, Ingersoll & Rooney PC

20090121539 - Brake pipe vent valve for locomotive brake system: The present locomotive brake system includes a brake controller operable by an operator and a brake pipe vent valve. The brake controller includes an emergency output port which provides emergency pneumatic signal on the emergency output port when the brake controller is in an emergency position. The brake pipe vent... Agent: Barnes & Thornburg LLP

20090121540 - Hydraulic brake system: Embodiments of a hydraulic brake system are disclosed. In one embodiment, a priority flow control valve for supplying operating pressure has a first orientation in which operating pressure is provided at a controlled flow port and a second orientation in which operating pressure is provided at the controlled flow port... Agent: Westman Champlin & Kelly, P.A.

20090121541 - Solenoid valve for brake system: A solenoid valve for a brake system, which has a simple constitution and can be easily manufactured with reduced manufacturing costs, is disclosed. A valve core is formed in a cylindrical shape, and has a through-hole formed in a longitudinal direction of the valve core and a fluid passage formed... Agent: Ladas & Parry

20090115242 - Electrically actuated booster: A target displacement that makes variable the relative displacement relationship between an input piston and a booster piston is set according to a detection signal from a potentiometer (86) (input absolute displacement detecting means), and displacement control is performed so that the relative displacement between the two pistons becomes equal... Agent: Wenderoth, Lind & Ponack, L.L.P.

20090115243 - Method for regulating the pressure in an electronically controlled brake system, and electronic brake system: A method for regulating the brake pressure in an electronically controlled brake system for a motor vehicle. According to the method, an activation event results in an active pressure increase in a brake circuit. The activation event may result in no active pressure increase in a brake circuit in certain... Agent: Ratnerprestia

20090115244 - Brake power generator for a hydraulic vehicle braking system: In this brake force generator it is provided that the pedal counter-force simulation device can be or is fluidically coupled with the force input element and that the actuation force generating device has a control valve and a chamber arrangement, wherein the chamber arrangement is formed with a vacuum chamber... Agent: Macmillan, Sobanski & Todd, LLC

20090115245 - Motor vehicle rapid braking brake booster: The invention relates to a brake booster with a short operating travel, in which the three-way valve comprises a mobile valve seat borne by a sleeve (54). The movement of this sleeve is controlled by the piston. According to the invention, there is an elastic device (70) applying force to... Agent: Michael Best & Friedrich LLP

20090115246 - Traction control device for vehicle: An electric motor is coupled to driving wheels 2, 2. When a slippage of the driving wheels 2, 2 is detected, the electric motor 5 produces a regenerative torque to suppress the slippage of the driving wheels 2, 2. The regenerative torque is controlled in a variable manner according to... Agent: Lahive & Cockfield, LLP Floor 30, Suite 3000

20090115247 - Pressure modulator control: The invention relates to a brake system which comprises an actuating device (26), especially a brake pedal (30), and a control/regulation device (22). Said control/regulation device (22) controls at least one electromotive drive device (7a, 7b, 8) in response to the movement and/or position of the actuating device (26). The... Agent: Connolly Bove Lodge & Hutz LLP

20090115248 - System and method for adaptive brake application and initial skid detection: The adaptive brake application and initial skid detection system allows rapid brake application and prevents deep initial skids. Brake torque is compared with a predetermined threshold brake torque. Wheel velocity error signals are also generated to indicated the difference between the wheel velocity and a reference velocity signal. A torque... Agent: Fulwider Patton LLP