摘要:
An electrohydraulic pressure control device consisting of one or several electromagnetically operable hydraulic valves arranged in a block-shaped manner on a valve accommodating body. In order to provide both a compact and operationally optimized pressure control device which makes manufacture, checking and assembly as easy as possible and where different thermal expansions of the components are to be received possibly without any tensions, this invention provides that the coils (1), flexibly held frictionally and/or positively by an elastic or plastic holding device (4) arranged on the carrier element (2) of the cover (3), are flexibly alignable with respect to the valve accommodating body (5).
摘要:
An electrohydraulic pressure control device consisting of one or several electromagnetically operable hydraulic valves arranged in a block-shaped manner on a valve accommodating body. In order to provide both a compact and operationally optimized pressure control device which makes manufacture, checking and assembly as easy as possible and where different thermal expansions of the components are to be received possibly without any tensions, this invention provides that the coils (1), flexibly held frictionally and/or positively by an elastic or plastic holding device (4) arranged on the carrier element (2) of the cover (3), are flexibly alignable with respect to the valve accommodating body (5).
摘要:
A shielded housing for accommodating electronic circuits or components which are sensitive to electromagnetic interference fields or radiate interference fields, is fitted with an electrical connection in the form of a connecting cable, connecting plug or the like. This housing includes a shielding in the form of a closed metallic coating (of a conductive material) and, moreover, includes filter devices which are active against interference fields in particular in the area where the connection enters or penetrates the housing. In accordance with this invention, at least in the area of entry or lead-in, filter devices with capacitors are provided which are embodied as integral components of the connecting elements and of the shielding and, possibly, of the housing walls, also.
摘要:
The invention discloses a system, preferably for influencing the performance of a motor vehicle, comprising a sensor unit with an electric-mechanical transducer and a mechanical-electric transducer with signal recording amplifier, wherein such sensor unit is connected to an A/D signal converter by way of an output and to a b/A signal converter of a digital signal processing unit by way of an input.
摘要:
A housing for installation in motor vehicles to accommodate SMD electronic components disposed on one side of a multi-layer circuit board or film. A metal plate serves as the carrier for the circuit board or film, with the planar expanse of the metal plate being the same as or greater than that of the board or film, with the board or film being disposed on, attached to and electrically insulated from the metal plate. When the area of the metal plate is greater than that of the board or film, power components are disposed on the surface of the metal plate in a region not covered by the board or film, whereas when the area of the metal plate is substantially the same as that of the board or film, power components are disposed on the board or film, with the metal plate serving as a heat sink for the power components. A connector is mounted on the metal plate in a region covered by the board or film such that the connection pins of the connector are brought into the board or film, with the coupling side of the connector being on the planar side of the metal plate which is opposite the side carrying the board or film. Finally, a mechanical cover arrangement is attached to the metal plate to form a flat housing, with the mechanical cover arrangement covering the surface side of the metal plate carrying the board or film.
摘要:
Multiple forces act upon a steering spindle. Further, the mounting support of the steering spindle and the steering spindle itself are affected by tolerances, as a result of which the steering spindle with its longitudinal axis is moved radially relative to the vehicle chassis. Control devices for controlling the vehicle dynamics require steering angle sensors which have to indicate the current steering angle and variations thereof with great precision. If the steering angle is invariably fixed with respect to the chassis frame, the measurement frequently becomes inaccurate due to the radial movement of the spindle axis. As a remedy, the present invention arranges for the steering angle sensor to be positioned in the area of a spindle bearing. Favorable improvements relate to linking the sensor housing to the housing of the spindle bearing.
摘要:
An anti-lock hydraulic brake system is described wherein a throttle valve has a restrictive flow condition which becomes effective in the brake line in the event of brake slip control. Pumps for reapply pressure deliver fluid to the wheel brake via this restriction and regulating the pressure in the wheel brake is performed by control of an outlet valve. The throttle valve is operated hydraulically by various arrangements including the application of pump pressure, or by wheel brake pressure applied upon opening of the outlet valve at the start of an anti-lock control cycle.
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 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.
摘要:
A brake pressure control apparatus for automotive vehicles with an anti-locking control system (ABS) and/or with a traction slip control system (TSS) is presented. In the inlet line to the wheel cylinder an inlet valve is provided which affords a change-over from an orifice function into a flow limiting valve function at a predetermined wheel cylinder pressure. Flow is initially through an orifice (6) in a control slide valve piston (20), held in its initial position by a prestressing spring (23) acting through an auxiliary piston in engagement with control slide valve piston (20). An increase in pressure in the wheel cylinder (13), also exerted in the wheel cylinder pressure chamber (9), to a predetermined level, causes the auxiliary piston (27) to disengage from the control slide valve piston (20), preventing the force of the prestressing spring (23) from acting on the control slide valve piston (20). As a result, the control slide valve piston (20) is free to reach an equilibrium position corresponding to the magnitude of the remaining forces acting upon the piston (20 ). A control edge (33) on the piston (20) establishes a flow cross-sectional area (34) which, upon the filling of the wheel cylinder (13), leads to a constant nominal flow rate within the lines (19, 11, 12) to the wheel cylinder (13). The invention is distinguished in that precisely defined pressure gradients, a better adaptation to the volume accommodating curve of the wheel circuit and a better exploitation of the pump characteristic are achieved.