摘要:
A brake pressure control for use with automotive vehicles having an anti-locking control system (ABS) and/or a traction slip control system (ASR) is described. Provided in the wheel cylinder (16) is a pressure fluid circuit for pressure modulation, which contains, in addition to the wheel cylinder and the pressure fluid pump, an inlet valve disposed upstream of the wheel cylinder, an outlet valve disposed downstream of the wheel cylinder and a pressure fluid accumulator disposed between the outlet valve and the intake side of the pump, with the accumulator, during the anti-locking control mode (ABS-mode) acting as a pressure relief and, also, isolating the rest of the fluid circuit from the master cylinder and the pressure fluid accumulator. A closed circuit is attained in all phases of the anti-locking control mode and, during the phase of pressure decrease in the anti-locking mode, a very rapid pressure decrease in the wheel cylinder is achieved.
摘要:
A brake system is provided which includes a restoring unit by which a restoring force can be applied to the pedal. Since the pedal, at the same time, actuates a control valve 9 determining the booster force, during a restoring operation, the booster force also is reduced. The wall 40 accepting the restoring forces advantageously can be located in the booster housing 5 between the master cylinder 1 and the booster wall 6. Since the wall 40 covers relatively small distances only relative to the booster wall 6, the overall length of the booster housing 5 is not significantly increased.
摘要:
A hydraulic vehicle brake equipped with a parking brake device, in particular for motor vehicles, including a brake housing in which a hydraulic service pressure chamber is delimited by a brake piston, wherein the parking brake device acts on the brake piston and, in the applied condition, can be locked by a locking device, and an energy accumulator cooperating with the brake piston is equipped with at least one integrated spring element. In order to realize a simple and low-cost parking brake function that complies with legal requirements, according to the invention, the parking brake device is operable by a pressure that is introduced into the service pressure chamber and enables charging the energy accumulator.
摘要:
The present invention related to a piston pump, in particular for controllable brake systems such as ABS or ESP, wherein a working chamber of the pump in front of a piston is delimited by a pressure valve, and a resetting spring with its one end is supported on a valve seat carrier of the pressure valve and with its other end resets said piston into its bottom dead center position. An object is to render the assembly of the mass-produced pumps as inexpensive and simple as possible. To achieve this object, the present invention discloses that the resetting spring be adapted to be attached directly or indirectly to the valve seat carrier in addition.
摘要:
The present invention relates to a motor-pump aggregate with a motor and a piston pump , more particularly for electronically controlled brake systems of motor vehicles, wherein pistons of the pump are drivable by way of an eccentric that is connected to a shaft of the motor and are connected by means of a coupling ring, and wherein the motor has a holding plate. According to the present invention, a projection is provided on the holding plate and extends until into the range of motion of the coupling ring. This provides a stop for the coupling ring, on the one hand, and an improved outlet for leakage fluid of the pump, on the other hand.
摘要:
A method for operating a multi-cylinder internal combustion engine having gas exchange valves which are variably adjustable with respect to the valve opening characteristics either directly electromagnetically or by way of an electrohydraulic valve actuation system which includes several electromagnetic valves. For adaptation of all gas exchange valves to a desired valve opening characteristics, the electromagnetic valves are operated cylinder-selectively in the operation of the internal combustion engine by means of variable actuating voltages and/or actuating currents.
摘要:
The present invention relates to an electromagnetic valve including a valve housing accommodating a magnet armature, a magnet core member, a valve closure member, and a valve seat to which a magnet coil can be fitted. The valve housing is composed of a first deep-drawn sleeve member and a second sleeve member that can be inserted telescopically into the first sleeve member. The second sleeve member has an open end remote from the first sleeve member which is preferably configured as a metal sealing seat with a valve accommodating member.
摘要:
The present invention discloses a sensor and a method of its manufacture. The sensor is used to sense position shifts, motional velocities or rotational speeds of an encoder and comprises a housing which accommodates electric components. The housing is made up of a first housing part of plastics which is at least in part enwrapped by a second injection-molded housing part that is also made of plastics. The first housing part is designed integrally with at least one positioning element molecularly interfaced with the second housing part.
摘要:
The present invention relates to an electromagnetic valve including a valve housing (2) in which a sleeve (13) housing a magnetic core (14) is inserted, including a magnetic armature (16) on which a valve closure member (7)is mounted which, in its electromagnetically non-energized initial position, under the action of a spring (15), closes a valve passage (1) between a first pressure fluid channel (11) in the valve housing (2) and at least one further pressure fluid channel (12) in the valve housing (2). The valve passage (1) is provided in a valve member (3) that is movably arranged in the valve housing (2).
摘要:
The present invention relates to a closing device for closing pressure fluid conveying channels in a housing by a closing member press fitted into a channel, the outside periphery of the closing member including at least one indentation into which, by press fitting the closing member into the channel, basic material of the housing is deformed to provide a form lock. The housing is made of a malleable aluminum alloy, and the closing member is made of steel.