DE2902010A1 - OPERATING PARAMETERS OF MOTOR VEHICLES ON AN ELECTRONIC DISPLAY UNIT - Google Patents

Description

2902O1Ö

V / DO Adolf Schindling AG - 4 - "- 6G00 Frankfurt / Main

Graefstrasse 103

Operating parameters of motor vehicles on an electronic display unit

The invention relates to a device for displaying time-dependent monitorable and / or storable and / or operating parameters of Motor vehicles that are recorded by encoders permanently installed in the motor vehicle and, after actuation, by switching contacts on at least one electronic display unit, for example a so-called LCD or LED display device, appear.

Such a device can be found, for example, in the German publication 2G 11 ** 71, in which an arrangement for the monitoring and storage of vehicle operating parameters is described, which to a suitable Computer is connected. What is not resolved with this arrangement is an unequivocal assignment of the displayed value to the content and dimension of the operating parameter.

The invention was therefore based on the object of a simple and to create a device that can be manufactured inexpensively and can be identified quickly and reliably without difficulty is which operating parameters appear in each case on a display unit.

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In the case of a facility, this task is the one mentioned at the beginning Art solved in that the switching contacts around the centrally located display unit in a common Mounting plate are arranged and that in the display unit additionally electrically excitable light signals are provided, each assigned to a switching contact are. Instead of an elaborate lighting of the respective circuit symbol or an assigned label a light signal lights up in the display unit

depending on the operating condition of the facility due to the advantageous subdivision of labeling and light signs over a reference line fulfills the given task. A particularly advantageous one An embodiment of the invention is seen in the fact that the switching contacts are arranged so that they can be operated by pushbutton switches are whose actuation position, for example, by mechanically foldable light panels in the push button above the mounting plate is visible. With such an arrangement, on the one hand, the display unit lights up the light signal assigned to the respective button, and its switching status itself, on the other hand, as well is controllable.

Finally, there is another embodiment of the invention also seen in the fact that the display unit and the switching contacts are integrated into the control panel of a computer.

Further advantages of the invention will be demonstrated with reference to the in Drawing embodiments shown schematically explained in more detail. Show it:

Figure 1 is a plan view of a device with pushbuttons and Figure 2 is a plan view of another version of the invention with plug connection

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The device shown in Figure 1 shows a so-called on-board computer for motor vehicles, van the various Data, mainly operating parameters, can be calculated, stored and displayed for motor vehicles. Opposite to Normal computer units in a motor vehicle have the particular problem that the results of the display unit It should be clear and easy to read with reliable assignment to the desired parameter. The user might Be able to recognize unequivocally and immediately which parameter

1D he is currently calling. Therefore, at the same time as the display of the parameter on a numerical display known per se, it is necessary that a signal is available for recognizing the respective type of the displayed parameter. To simplify the representation of such a signal, the device 2, a liquid crystal display, has additional electrodes for light characters k, which are each assigned to a parameter by means of reference lines 5, which is attached to the pushbutton of a pushbutton switch. If necessary, the labeling of the pushbutton button is explained in more detail by means of characters in the immediate vicinity of the pushbutton buttonB.

The juxtaposition of light symbols and pushbuttons is made particularly clear by reference lines but can be made even more visible if pushbuttons are selected whose actuation is immediately visible. This would be the case with pushbutton switches in which a mechanically appearing when actuated in the pushbutton button Signal is provided.

3D The buttons of the device shown are provided with symbolic signs, which have the following meanings:

R = range

kl = distance covered

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V0 Average speed T Tank consumption 1-U = Rest area E. input Op Temperature display C / CE = deletion ZZ = arrival time AZ = Alarm or check time Z Switching time 1-Z = Stop time Z Time ZIiJ = Travel time T0 = Average consumption of the amount of fuel TZ = Current fuel consumption

In Figure 2 it is also shown that such an on-board computer by a connector strip with a prepared Socket is detachably arranged in the motor vehicle. This creates a direct connection between the donors and the energy ZG Supply of the motor vehicle made with the computer. It is also conceivable to uncomfortably transport parts of the Computer to move permanently in this way in the motor vehicle and the display unit interchangeable with different Use vehicles one at a time. 25th

A particularly cost-effective solution can result from the combination of the new display unit with one which is known per se and therefore keyboard not shown consist of foils. Such keyboards wear in the places where movable Contacts are provided, deep-drawn print lady opposite are permanently arranged on circuit boards arranged switching contacts. You can therefore like the pushbutton switches to the Display unit be attached in one plane after the pressure domes are provided with lettering and reference lines.

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Claims (7)

Expectations , 1., Device for displaying operating parameters of motor vehicles that can be monitored and / or stored as a function of time and / or processed with an arithmetic unit, recorded by encoders permanently mounted in the motor vehicle and by actuating switching contacts on at least one electronic display unit, for example so-called LCD or LED -Display devices appear, characterized in that the switching contacts (3) are arranged around the centrally arranged display unit (2) in a common mounting plate (1) and that additional electrically excitable light signals (4) are provided in the display unit (2), which are each assigned to a switching contact (3). 2. Device according to claim 1, characterized in that on or immediately next to a switch contact (3) an inscription on the mounting plate (1) is provided for an operating parameter to be displayed. 3. Device according to claim 1 or 2, characterized in that a reference line (5) is marked on the mounting plate (1) between the switching contact (3) and / or associated labeling and the corresponding light symbol (4) of the display unit (2). 4. Device according to one of the preceding claims, characterized in that the switching contacts can be actuated by the slide of push button switches, the actuating position of which is visible in the mounting plate (1). 0 3 0 0 3 0/0403 2902016 -Z- 5. Device according to one of the preceding claims, characterized in that the switching contacts (3) are encased in a printed circuit board which is opposite an elastic trap formed with pressure domes. 6. Device according to one of the preceding claims, characterized in that the display unit (2) and the switching contacts (3) are integrated into the control panel of a computer. 7. Device according to claim 6, characterized in that the display device (2) with keyboard via an electrical connector (8) with a connection fixedly arranged in the motor vehicle is designed to be pluggable and detachable. 0 3 OJ 3 0/0 L 0 ι '·