DE19906284C2 - Device arranged in a motor vehicle, in particular heating device - Google Patents

Description

The invention relates to an arranged in a motor vehicle t device - especially a fuel-operated one Heater - with an air pressure and / or air temperature comprehensive sensors for device control.

In such a known from dar DE 195 48 225 A1. The heater pressure is increased by means of a pressure sensor summarizes and in the fuel metering or control of Supply air for the combustion process is taken into account to enable optimized burning operation.

It also uses fuel-powered heaters designed where air pressure and air temperature at the. Operational control should be taken into account.

The object of the invention is now the use of such Ge advice to increase.  

This object is achieved in that the Sensor technology with a driver circuit for one in the field of vision the driver's arranged display is connected and the Trei Switching on the display sensed parameters and / or analog parameters and / or a graphic least one of these parameters depending on a pre allowed to generate given or predefinable parameters.

The invention is based on the general idea of Sensor technology recorded operating data of the associated device To inform drivers, especially in the form of graphical loading drive protocols. This gives the driver additional information mations about the respective driving conditions.

According to a preferred embodiment of the invention be provided to graphically show the temporal tem temperature profile and / or the time profile of the air pressure kes and / or the ge to the distance traveled low profile, which with high accuracy can be determined from the temperature of the air and air pressure.

Otherwise, the Erfin to the claims and the following explanation refer to the drawing, based on the particularly preferred Embodiments of the invention are explained.

It shows:  

Fig. 1 is a schematic block diagram of a heating device according to the Invention and

Fig. 2 is an associated display, different possibilities are shown graphical representations.

According to Fig. 1, a well-known principle, material with internal heating device operated control unit 1 has a 2, which with a fuel pump 3, and an output side connected to air blower 4, and accordingly controls the supply of the fuel and air to the heater 1. On the input side, the control unit 2 is connected to a temperature sensor 5 for the temperature of the ambient air or atmosphere and an air pressure meter 6 , the signals of which represent the air pressure of the atmosphere. Accordingly, the control unit 2 can optimize the ratio of supplied fuel and supply air, taking into account air temperature and air pressure.

Furthermore, the control unit 2 with a setpoint input 7 that can be activated by the driver for the desired interior temperature in the vehicle and - according to the invention - is connected to a display arrangement 8 with which the data that can be determined from the measurement data from the air pressure meter 6 and temperature sensor 5 can be displayed to the driver . Here, the control unit 2 also works as a driver circuit for the display arrangement.

Fig. 2 shows this display device 8 in an exemplary embodiment, the images A to D of Fig. 2 un different possibilities of data display.

In image A of FIG. 2, the air pressure curve for a distance traveled is shown in a display field 8 'of the display arrangement 8 , a large number of column-like fields 9 appearing on the display field 8 ', each of which symbolizes different air pressures under different vertical heights, wherein each field 9 represents an average value for a time interval of the air pressure measurement, and fields 9 appearing next to one another are associated with time intervals which follow one another in time.

Instead of the air pressure, a tempera can also be used, as shown in Figure B. door profile can be displayed.

According to Figure C, the temperature and air pressure can be used data also determines the respective altitude of the routes if the temperature and air pressure data correspond be evaluated and the altitude of at least one place, in particular the location of the start of the journey is known.

Each of the fields 9 is subdivided into subfields, the vertical height of each subfield standing for a predetermined or predeterminable measure of the air pressure, the temperature and / or the height. In a corresponding manner, the horizontal dimension or the width of the fields 9 or the subfields forming these fields 9 symbolize a predeterminable measure of time, for which an average value of air pressure, temperature or height is formed in each case.

The right on the display field 8 'field 9 relates to the most recent time interval of the graphically represented measurement protocol. The fields 9 adjoining on the left relate to time intervals lying before it.

With buttons 10 or other handling, the driver can switch between the different profiles as well as different scales in order to display a respective measurement profile over a more or less long period or with a more or less large resolution. In addition, the buttons 10 serve to the altitude of a place on the driving route, for. B. to enter the altitude of the place of departure.

According to the image D, various parameters can also be represented purely nu merically if the driver has actuated the keys 10 accordingly.

It is pointed out that ent held, independently protectable features despite the pre formal reference to the main claim, too  should have independent protection. Otherwise, all fall all inventions contained in the entire application derische features within the scope of the invention.

Claims (3)

1. In a motor vehicle device - in particular fuel-operated heater ( 1 ) - with an air pressure and air temperature sensing sensor ( 5 , 6 ) for Ge device control, the sensor system with a driver circuit ( 2 ) arranged in the driver's field of vision Display ( 8 ) is connected and the driver circuit on the display sensor-sensed parameters and / or analog parameters and / or a graphic ( 9 ) generates at least one of these parameters as a function of a predeterminable parameter. 2. Device according to claim 1, characterized, that the graph is a profile of temperature, air pressure and / or altitude for a distance traveled. 3. Apparatus according to claim 1 or 2, characterized in that handles ( 10 ) for switching to different Pa parameters and / or for changing the scale of the respective Dar position are available.