Display system for vehicle to display the extent of range

0001The invention relates to a display device for motor vehicles to display the range according to the preamble of claims 1 and second

0002Such a display device is, for example, in DE 196 12 062 described. In particular, this is the range in the form of a range area displayed. A further guidance on the possible Fueling of the vehicle is not evident from this application.

0003Further, for example, from DE 195 16 649 A1 describes a navigation system is known in which in the case of low contents of the tank, taking into account the data obtained through an onboard computer average consumption the yield estimate is determined and gas stations as additional information reflects that are within reach. Relying in particular stations to a defined radius the current location or travel locus are constantly reproduced. at this reproduction of the petrol stations is not a reference to the desired destination available. Furthermore, in this known navigation system is also the accessibility of the destination not verified.

0004The object of the invention to provide a display device of the initially mentioned to improve such kind that the driver in ensuring the accessibility the destination is as little as possible distracted from what is happening.

0005This object is achieved by the characterizing features of the claims 1 and 2 dissolved.

0006Preferably, the invention is directed to a display device according to the DE 196 12 062 from where the range in the form of a range area is shown. Also, the display of the range area, the through the evaluation of parameters influencing consumption over longer Time is determined in accordance with DE 196 12 062 an expected Range to be superimposed on the current driving style.

0007The means for determining the distance of the current driving situation to the desired Destination and means for determining the gas stations substantially preferably in the direction of the destination through an already existing Navigation system shown.

0008The essence according to claim 1, the combined representation the reach and the removal of the current driving situation to the desired Destination, whereby both pieces of information to the driver only by a single display unit are received. In this way, finds a reasonable combination of existing in a navigation system data having a display device for displaying the range instead.

0009The essence of the claim 2 is that the driver only then a warning at the gas station within the still possible Coverage will be given if a refueling of reaching is required destination. However, warnings amplified can on gas stations are made when a small station network or a reduced gas station offer, for. example, at night or by overloading at strong frequenting, present. Also, the warning on gas stations selectively with respect to the vehicle-specific fuels, eg. as gas, Hydrogen, electricity or gasoline, or based on vehicle-specific Tank technology (z. B. Robot refueling) are made.

0010By the display device according to the invention, the driver is on the one hand only distracted from what is happening when a refueling to achieve is the destination required and comprising on the other hand, however, if necessary informed about Nachtankmöglichkeiten.

0011The drawing shows an embodiment of the invention is shown. It show<dl tsize="18" compact="compact"><dt>Fig. 1 to Fig. 3</dt><dd>three different driving scenarios through which the present invention Display device different is used.</dd></dl>

0012In Figs. 1 to 3 are the same components with the same reference numerals provided. A display unit 1 is provided with means 2 for determining the distance the current driving situation to the desired destination and to determine Gas station substantially in the direction of the destination in the form of a navigation system, for example via a digital data bus 10, electrically connected. The display unit 1 is designed as a bar graph that a distance scale 3. The display of the range in the form of a Range area 4 by a preferably optically highlighted Bars shown. Highlighting for example, by a resulting lighting is available from the amount of energy Range area. The coverage area 4 is for a function of the current in the vehicle amount of energy and secondly, depending on consumption-influencing parameters determined in the vehicle over a long period. The coverage area 4 results for example from the minimum and maximum average consumption the motor, preferably with driver-specific consideration Special features, such as sporty or economical Control strategies, and / or track-dependent considering specifics, z. B. ascent or stop-and-go operation.

0013The display of the range in the form of range area 4 via a long-term monitoring of these parameters influencing consumption. Additionally or alternatively, as a coverage range value or smaller coverage area 5 indicated because of short-term observation be, of the expected range of the current driving style equivalent.

0014In the navigation system 2, the information 8 is about the current location or travel locus before that can be displayed when needed. Furthermore, is the Information 7 on the desired destination before commonly used in navigation systems is displayed on the screen. From the information 7 and 8 provides the navigation system 2 the basis of stored digital Maps the distance 6 of the current driving situation to the desired Destination, after this distance 6 via the data bus 10 to the display unit is submitted. 1 Distance 6 simultaneously with the reach 4 and / or 5 on the range scale 3 for easy comparison of Range displayed superimposed with the distance.

0015In the example of FIG. 1, the on-vehicle energy amount is sufficient Expected out to reach the destination without refueling. For this Case, the display 9 of the navigation system 2 does not indicate a Gas station appears.

0016In the example of FIG. 2, the on-vehicle energy amount is sufficient even at extremely consumption-optimized driving style probably not, to specify the destination to achieve without refueling. As a refueling required is, for example, all service stations with a maximum Deviation from a predetermined number of kilometers (z. B. 2 kilometers), are the most direct route to the destination exists on the display 9 (or 9.1, 9.2, etc.) displayed in sequence. However, it may also, in particular on request of the driver, only the next possible filling station essentially are displayed in the direction of the destination.

0017In the example of FIG. 3 may also independently of the display of the distance 6 or by entering the destination by the fact that in Vehicle existing amount of energy or the expected range only is still very low, automatically forcibly the next available gas station will appear on the display. 9

0018In addition it is pointed out that the invention also in vehicles is applicable, the use on roadways with automatic tracking control are.

0019Thus, the driver is best in energy-critical conditions to the pointed required refueling, with a sufficient amount of energy However, as little as possible distracted from what is happening.