摘要:
A method and a system exchange data between a program-controlled device, in particular a microcontroller, and a logic circuit. A control signal is transmitted from the program-controlled device to the logic circuit along a first line. A bidirectionally usable, second line is placed in the dominant state by the logic circuit if a data transmission is to be made by the logic circuit.
摘要:
An apparatus for activating and/or deactivating a security device, particularly an entry device for a motor vehicle, having a portable transmitter unit for wirelessly transmitting a coded information item which is received by a receiver apparatus and is compared with a prescribed coded information item, the receiver apparatus being capable of outputting an actuation signal to the security device if the two coded information items match, and wherein the codes of the transmitter unit and the receiver apparatus can be updated in terms of the currently coded information items to prevent unauthorized use of the motor vehicle.
摘要:
An invention relates to an apparatus for activating and/or deactivating a security device, particularly an entry device for a motor vehicle, having a portable transmitter unit for wirelessly transmitting a coded information item which is received by a receiver apparatus and is compared with a prescribed coded information item, the receiver apparatus being capable of outputting an actuation signal to the security device if the two information items match, and the receiver apparatus being connected to a mechanical device for operating the security device. In an apparatus in which unauthorized deactivation of the security device is reliably prevented, the receiver apparatus is disabled for the reception and/or evaluation of the coded information items and/or for the output of the actuation signal to the security device after the security device has been mechanically activated, the block being lifted after the security device has been mechanically deactivated.
摘要:
An improved receiver (5) of a remote control system, in particular for closing systems of a motor vehicle, and a method for operating such a remote control system are proposed. Modern motor vehicle closing systems are equipped with remote control systems which, in addition to the central locking of the doors, also perform so-called comfort functions such as the closing of the windows or of the sunroof. For safety reasons, such a comfort function must be terminated as soon as a signal fails to be received. If the remote control system is activated at the limit of its range, the response threshold of the receiver (5) may be undershot as a result of the transmitter (1) moving. This leads to undesired breaking off of the comfort function, or to jerky operation of the comfort function. According to the invention, it is therefore proposed to implement the response threshold of the receiver so that it is capable of being switched over. By virtue of the response threshold which is relatively high in the position of rest (status A) of the receiver, the remote control has a smaller range. After the detection of a signal, the comfort function is activated (status B) and the response threshold lowered (status C), so that the sensitivity and the range of the remote control system are then increased. The response threshold can be switched over, for example, by means of an attenuator (9).
摘要:
An electronic device, which for example includes a sensor element such as a rotational speed sensor, comprises a first network (4) having a first microcontroller (8) and a first supply voltage source (10). It also comprises a second network (4) having a second microcontroller (8) and a second supply voltage source (30). The electronic device is also provided with decoupling elements (42-50) which are adapted to decouple the networks (4, 6) form interferences.
摘要:
The invention relates to a method for monitoring a vibrating gyroscope which represents a resonator and forms part of at least one control loop that excites the vibrating gyroscope with its natural frequency by supplying an excitation signal. An output signal can be extracted from the vibrating gyroscope, the excitation signal being derived from said output signal by means of filtering and amplifying. According to the invention, the quality of the resonator is measured. If the measured quality is below a threshold value, an error message is generated.
摘要:
The invention relates to a method for monitoring a rotation rate sensor comprising a vibration gyroscope that represents a band-pass filter and that is part of at least one control circuit. Said control circuit is comprised of digital and analog components and excites the vibration gyroscope to vibrate with its natural frequency by supplying it with an excitation signal. An output signal can be gathered from the vibration gyroscope from which the excitation signal and the rotation rate signal can be derived by filtering and amplification. The inventive method is characterized in that redundant analog components and at least one analog to digital converter is used to measure analog signals and read characteristic values within the digital components and compare them with limiting values.
摘要:
The invention relates to a method and to an arrangement for eliminating false messages in monitoring systems for electronic devices, especially for sensor circuits in motor vehicles. According to the inventive method, error messages increment a counter and an alarm is triggered when a predetermined position on the counter is reached.
摘要:
A tube- or hose connector for the transport of a fluid has at least at one end a ring type nipple 2 with a cross hole 4, which serves to mount the connector at an aggregate for receiving a banjo bolt 12 having a head 13 and a threaded shank 14 as well as two gaskets 10, 11. It has a protecting cap 18 to hold together a premounted unit of ring type nipple 2, banjo bolt 12, and the two gaskets 10 and 11, and has an approximately U-shaped form with a clamp 19, at the one end of which a flank 20 overlaps the head 13 of the banjo bolt 12 and at the other end of which a protecting cover 20 for the threaded shank 15 of the banjo bolt 12 is provided. The protecting cap 18 has an extension 26 supporting itself at the threaded shank 15 of the banjo bolt 12, and the protecting cover 22 is borne pivotably at the clamp 19.
摘要:
The present invention pertains to a process and a system for controlling the movements of an axis on program-controlled machines, especially industrial robots, comprising a position control unit and/or a velocity control unit and/or a power control unit. The loads acting on the axis from the outside during the operation are measured by one or several sensors. The load signal is fed back regeneratively in the sense of an increase in the position control variance and sent to the summation point of the position and/or velocity control unit. To increase or decrease the mechanical flexibility of the axis, a controllable amplifying or attenuating device is provided. The sensors may have different designs, corresponding to the loads to be measured. They are preferably directly associated with the axes.