Electromagnetically controllable adjusting device and method for the production thereof and/or rectification

Abstract

The security device comprises (i) a first connector ( 12 ) for connection to a telecommunications device ( 14; 15 ) such as a land-line telephone, mobile telephone or the modem of a computer, (ii) a second connector ( 16 ) connected to a telecommunications line ( 18 ), and (iii) a normally closed switch ( 20, 21 ) having a closed position in which a signal pathway ( 22, 23 ) within the security device between the first connector ( 12 ) and the second connector ( 16 ) is enabled and an open position in which the signal pathway ( 22, 23 ) is interrupted. A control device ( 24, 25 ) for controls the position of the switch ( 20, 21 ). A programmable memory ( 26, 27 ) stores allowed signal sequences and at least one authorised pass number. A comparator ( 30 ) is in operative connection with the control device ( 24, 25 ) and compares signals on the pathway ( 22, 23 ) with the allowed stored signal sequences. The control device ( 24, 25 ) opens the switch ( 20, 21 ) when a signal on the pathway ( 22, 23 ) does not match one of the stored signal sequences. A programmer ( 32 ) receives pass numbers and programming signals from a remote telecommunications device ( 52 ) via the telecommunications line ( 18 ). The programmer ( 32 ) includes an authorised pass number recognition device ( 34 ) for comparing a received pass number with the authorised pass numbers stored in the memory ( 26,27 ). The memory ( 26, 27 ) can be reprogrammed only when an authorised pass number is received.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 and an adjustment device according to the preamble of claim 8 . A regulating device of this type relates in particular to an analog-digital control valve (A / D valve) for use in a brake control system of a motor vehicle having at least an ABS function. Background technique [0002] It is known in the prior art to use electromagnetically controllable analog valves in ABS control units for motor vehicle braking systems, but also in so-called driving dynamics controllers with additional functions such as ESP, for improved control or Reduce noise. [0003] So-called analog switching valves are used in the new generation of hydraulic controls. Analog switching valves are solenoid valves that are mostly actuated by PWM current control. The solenoid valve itself is designed to be completely open or closed, but operates in this way through a purposeful current regulation, so that the solen...

AI Technical Summary

Problems solved by technology

However, complex measuring methods are required for the pressure loading of the control unit at the parts supplier or at the end of the assembly line at the plant of the motor vehicle manufacturer in order to establish individual characteristic curves for each valve.

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