DE102009007436B4 - Method and device for displaying at least one course of values for a vehicle and a vehicle - Google Patents

Abstract

Method for displaying at least one value curve for a vehicle, each point of the at least one value curve (2, 3) being defined by a first value on a first axis of a display (1) and a second value on a second axis of the display (1) , wherein the at least one value curve (2, 3) is shown on the display (1), a value range for the first value that can be displayed on the first axis is defined by means of a scale (4; 5) of the display (1), characterized in that that the scale (4; 5) is automatically adapted in such a way that a minimum value of the first values of a section of the at least one value curve (2, 3) to be shown on the display (1) is greater than or equal to a minimum value of the scale (4; 5 ), and • that a maximum value of the first values of the section of the at least one value curve (2; 3) to be shown on the display (1) is less than or equal to a maximum value of the scale (4; 5) Aben can be defined for the first axis, and that the scale (4; 5) is adapted by selecting a corresponding one of the predetermined scale settings for the first axis, and / or that several predetermined scale settings are defined for the second axis, and that the further scale (6) is adapted by selecting a corresponding one of the predetermined scale settings for the second axis is selected that the plurality of predetermined scale specifications for the first axis are defined for predetermined driving situations of the vehicle (10), and / or that the plurality of predetermined scale specifications for the second axis are defined for predetermined driving situations of the vehicle (10), and that the predetermined Driving situations include at least the following driving situations • a journey within a city, • a journey within a mountain range, and • a journey on a motorway.

Description

The present invention relates to a method and a device for a vehicle in order to display a value curve, as well as a vehicle with such a device.

The DE 10 2005 059 216 A1 describes an information device for the driver of a vehicle. Evaluation diagrams are obtained on the basis of stored measured values, which provide information about driving behavior.

The DE 33 32 311 A1 discloses an electronic curve drawing device. The largest scale value is determined from the data entered.

In the DE 199 63 156 B4 a display for a vehicle is shown, on which the dependence of the engine power on the speed of the vehicle at a current accelerator pedal position is shown for different gears.

In today's vehicles, the amount of information that can be presented to a driver or another occupant of the vehicle is very large. It is therefore all the more important to present this information in a way that is easily perceptible for the driver or occupant.

It is therefore the object of the present invention to present information in a space-efficient and easily perceivable manner.

According to the invention, this object is achieved by a method for displaying at least one value curve for a vehicle according to claim 1, a device with a display for a vehicle according to claim 11 and a vehicle according to claim 13. The dependent claims define preferred and advantageous embodiments of the present invention.

• • Ein Minimalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des oder der Werteverläufe ist größer oder gleich einem Minimalwert der entsprechenden Skala.
• • Ein Maximalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des oder der Werteverläufe ist kleiner oder gleich einem Maximalwert der entsprechenden Skala.

In the context of the present invention, a method for displaying one or more value curves for a vehicle is provided. For each of these value curves or for one value curve (if only one value curve is displayed), each point of a corresponding value curve is represented by a first value on a first axis (e.g. an ordinate) of a display and a second value on a second axis (e.g. an abscissa) of the display is defined. The value curve or the value curves are shown on the display, a value range for the first value that can be shown on the first axis being defined by means of a scale (or by means of several scales) of the display. This scale or these scales are automatically adapted to the section of the corresponding value curve (s) to be shown on the display, so that the following conditions are met:

• • A minimum value of the first values of the section of the value curve (s) to be shown on the display is greater than or equal to a minimum value of the corresponding scale.
• • A maximum value of the first values of the section of the value curve or values to be shown on the display is less than or equal to a maximum value of the corresponding scale.

This method according to the invention advantageously ensures that each first value of a point which belongs to a section of a value curve that is to be shown on the display can also be displayed, since the scale corresponding to the value curve is adapted accordingly.

The following should also be noted with regard to the relationship between the scale and the course of values. There can be one or more scales for an axis. It is possible that one or more scales apply or apply to a value curve, for some of the value curves or for all value curves. Of course, this means that each value curve can also have its own individual scale.

• • Eine Differenz zwischen dem Maximalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des entsprechenden Werteverlaufs und dem Minimalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des entsprechenden Werteverlaufs ist höchstens um einen vorbestimmten Schwellenwert kleiner als eine Differenz zwischen dem Maximalwert der Skala und dem Minimalwert der Skala.

In addition, the scale corresponding to a value curve can also be adjusted in such a way that the following condition is met:

• • A difference between the maximum value of the first values of the section of the corresponding value curve to be shown on the display and the minimum value of the first values of the section of the corresponding value curve to be shown on the display is at most a predetermined threshold less than a difference between the maximum value of the scale and the Minimum value on the scale.

This ensures that the scale or the value range displayed by the scale is also adapted to the section of a value curve to be displayed or the value range of the first values of this section if the difference between the maximum value and the minimum value of the value range of this section decreases. In other words, the value range of the scale is reduced if the value range of the section to be displayed is also reduced, so that the scale (in the form of the scale) changes in such a way that the section of the value profile shown on the display covers a sufficiently large area of the display in order to increase the readability of the display.

The predetermined threshold value is in particular a predetermined percentage of the difference between the maximum value and the minimum value of the scale.

If the predetermined threshold value is set, for example, to 90% of the difference between the maximum value and the minimum value of the scale, it is ensured that the corresponding scale for a value curve is set in such a way that at least 90% of the display is in the direction of the first axis from that on the The section of the value curve shown in the display is filled.

• • Ein Minimalwert der zweiten Werte des auf der Anzeige darzustellenden Abschnitts des entsprechenden Werteverlaufs ist immer größer oder gleich einem Minimalwert der weiteren Skala.
• • Ein Maximalwert der zweiten Werte des auf der Anzeige darzustellenden Abschnitts des entsprechenden Werteverlaufs ist immer kleiner oder gleich einem Maximalwert der weiteren Skala.

In a further embodiment according to the invention, a displayable value range on the second axis for the second value is also defined by a further scale of the display, this further scale also being automatically adapted so that the following conditions are met:

• • A minimum value of the second values of the section of the corresponding value curve to be shown on the display is always greater than or equal to a minimum value of the further scale.
• • A maximum value of the second values of the section of the corresponding value curve to be shown on the display is always less than or equal to a maximum value of the further scale.

The value range shown on the second axis can be a time range, for example, so that the second values each define points in time at which the corresponding first values are present. In other words, corresponding first values, for example consumption values of the vehicle, are shown on the display at respective points in time by means of a value curve.

The fact that the scales of both the first and the second axis are adjusted accordingly ensures that the section of a value curve to be displayed is shown completely and legibly on the display.

In one embodiment according to the invention, the corresponding scale is adapted if the maximum value of the first values of the section to be displayed is greater than the maximum value of the scale or if the minimum value of the first values of the section to be displayed on the display is less than the minimum value of the scale. In a similar way, the scale of the second axis can be adjusted if the maximum value of the second values of the section to be displayed is greater than the maximum value of the scale of the second axis or if the minimum value of the second values of the section to be displayed is less than the minimum value is the scale of the second axis.

In this embodiment, the corresponding scale is only adapted while the maximum value of the first values of the section to be displayed approaches the maximum value of the scale when the maximum value of the first values of the section to be displayed is greater than the maximum value of the scale. In the same way, the corresponding scale is only adapted while the minimum value of the first values of the section to be displayed approaches the minimum value of the scale when the minimum value of the first values of the section to be displayed becomes smaller than the minimum value of the scale. In other words, the scale is not changed in this embodiment when the maximum value or minimum value of the first values of the section to be displayed approaches the maximum value or minimum value of the scale, but does not become larger or smaller than the maximum value or minimum value of the scale. As a result, the scale is kept constant for as long as possible, which also advantageously increases the readability of the display.

gilt. Dabei ist Max(W₁) der Maximalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts, MaxSk₁ der Maximalwert der Skala und F₁ ein erster Faktor, für welchen $$\mathrm{0,5}<{\text{F}}_1<1$$

gilt.In a further embodiment according to the invention, the scale is adapted when $$\text{Max}\left({\text{W.}}_1\right)*{\text{F.}}_1<{\text{MaxSk}}_1$$

applies. Max (W ₁ ) is the maximum value of the first values of the section to be shown on the display, MaxSk _{1 is} the maximum value of the scale and F _{1 is} a first factor for which $$0.5<{\text{F.}}_1<1$$

applies.

In other words, the scale is adapted in this embodiment when the maximum value of the first values Max (W ₁ ) deviates too much (expressed by the first factor F ₁ ) from the maximum value of the scale MaxSk ₁ .

gilt. Dabei ist Max(W₂) der Maximalwert der zweiten Werte des auf der Anzeige darzustellenden Abschnitts, MaxSk₂ der Maximalwert der Skala und F₂ ein zweiter Faktor, für welchen $$\mathrm{0,5}<{\text{F}}_2<1$$

gilt. Damit wird auch die weitere Skala bei dieser Ausführungsform dann angepasst, wenn sich der Maximalwert der zweiten Werte Max(W₂) zu stark (ausgedrückt durch den zweiten Faktor F₂) von dem Maximalwert der weiteren Skala MaxSk₂ entfernt.In this embodiment, the further scale or the scale of the second axis can also be adapted if $$\text{Max}\left({\text{W.}}_2\right)*{\text{F.}}_2<{\text{MaxSk}}_2$$

applies. Max (W ₂ ) is the maximum value of the second values of the section to be shown on the display, MaxSk _{2 is} the maximum value of the scale and F _{2 is} a second factor for which $$0.5<{\text{F.}}_2<1$$

applies. In this embodiment, the further scale is also adapted if the maximum value of the second values Max (W ₂ ) deviates too much (expressed by the second factor F ₂ ) from the maximum value of the further scale MaxSk ₂ .

This ensures that - provided the minimum value of the corresponding value curve corresponds to the minimum value of the scale - the section of the corresponding value curve to be displayed always covers at least 50% (at F ₁ or F ₂ close to 0.5) of the scale range.

According to the invention, there are several predetermined scale specifications (value ranges of the scale) for the first axis. The scale is then adapted in such a way that in each case a corresponding one of the predetermined scale specifications is selected for the first axis. And / or according to the invention, several predetermined scale specifications are defined for the second axis, the further scale then being adapted in such a way that a corresponding one of the predetermined scale specifications is selected for the second axis.

In this embodiment, there is a predefined and thus deliberately restricted set of scale specifications, from which a scale specification is then selected. In other words, during an adjustment, the scale, or more precisely the range of values on the scale, is not calculated and adapted in any form, but a scale specification or scale that is better suited for the section of the value curve to be displayed is selected from the set of specified scale specifications.

• • Eine Fahrt des Fahrzeugs innerhalb einer Stadt, wodurch die Fahrt beispielsweise aufgrund von Ampeln oder Kreuzungen verhältnismäßig viele Brems- und Beschleunigungsvorgänge umfasst.
• • Eine Fahrt des Fahrzeugs innerhalb eines Gebirges, wodurch die Fahrt aufgrund eines Gefälles lang andauernde Abbremsvorgänge umfasst.
• • Eine Fahrt des Fahrzeugs auf einer Autobahn, wodurch die Fahrt (abhängig von dem Fahrstil des Fahrers) verhältnismäßig monoton sein kann und verhältnismäßig wenige Bremsvorgänge aufweisen kann.

The multiple predetermined scale specifications for the first axis and / or the multiple predetermined scale specifications for the second axis are defined for certain driving situations of the vehicle. These predetermined driving situations include the following driving situations:

• • A journey of the vehicle within a city, whereby the journey includes a relatively large number of braking and acceleration processes, for example due to traffic lights or intersections.
• • A journey of the vehicle within a mountain range, whereby the journey includes long braking processes due to a gradient.
• • A journey of the vehicle on a motorway, whereby the journey (depending on the driving style of the driver) can be relatively monotonous and can have relatively few braking processes.

By choosing a scale appropriate to the driving situation depending on a predetermined driving situation for the corresponding scale, the scale is adapted in advance to the section of the value curve to be displayed, so that the scale can usually be kept constant for the duration of the driving situation, which in turn results in the Readability is improved.

According to the present invention, the scale can also be adjusted manually. It is possible, for example, for a user, e.g. the driver of the vehicle, to specify one of several scale specifications for the first axis and / or one of several scale specifications for the second axis.

The manual adjustment of the scale advantageously ensures that the driver of the vehicle can adjust the corresponding display in such a way that it corresponds to his wishes.

In a further embodiment according to the invention, the scale and / or the further scale has several partial areas with different resolutions.

Several sub-areas with different resolutions advantageously enable good readability for a value range, the values of which occur frequently, while at the same time an overview of the entire mapped section of the depicted value curve is possible.

According to another embodiment of the invention, the scale for the first axis is not adapted if the maximum value of the first values is greater than the maximum value of the scale. If the maximum value of the first values is greater than the maximum value of the scale, an area of the section of the corresponding value curve to be displayed, for which all first values are greater than the maximum value of the scale, is displayed by means of a special display element (symbol).

Such an embodiment is advantageous when the maximum value of the first values is a type of slip that occurs rarely. By not adapting the scale in this case, the readability of the area of the value range shown on the display, the first values of which are below the maximum value of the scale, is improved.

According to a further embodiment according to the invention, two value profiles are shown on the display. A first of these value profiles is an energy recovered from the vehicle (for example a hybrid vehicle), which is the first value of the first axis is shown on the display as a function of time (as a second value). A second of the value curves is energy consumed by the vehicle, which is shown as the first value on the first axis over time on the display.

In this case, there can be two scales for the first axis, the first scale specifying a value range for the first values of the first value curve and the second scale specifying a value range for the first values of the second value curve.

• • Ein Minimalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des oder der Werteverläufe ist größer oder gleich einem Minimalwert der entsprechenden Skala.
• • Ein Maximalwert der ersten Werte des auf der Anzeige darzustellenden Abschnitts des oder der Werteverläufe ist kleiner oder gleich einem Maximalwert der entsprechenden Skala.

In the context of the present invention, a device with a display for a vehicle is also provided. This device is designed to show one or more value curves on the display. Each point of each of these value curves is defined by a first value on a first axis and by a second value on a second axis. With one or more scales of the display, a value range or several value ranges are defined for the first value with respect to the display. The device is designed in such a way that the device adapts the scale in such a way that the following conditions are met:

• • A minimum value of the first values of the section of the value curve (s) to be shown on the display is greater than or equal to a minimum value of the corresponding scale.
• • A maximum value of the first values of the section of the value curve or values to be shown on the display is less than or equal to a maximum value of the corresponding scale.

The advantages of the device according to the invention essentially correspond to the advantages of the method according to the invention, which have been explained in detail beforehand, so that a repetition is dispensed with.

Finally, within the scope of the present invention, a vehicle is provided which comprises a device according to the invention.

The present invention is particularly suitable for displaying value profiles for a vehicle in a space-efficient and legible form. Of course, the present invention is not limited to this preferred area of application, since the present invention is also used, for example, in rail-bound vehicles, aircraft or ships or even in areas of application that are independent of a means of transport, such as for displaying a range of values on any display, e.g. a computer can be.

• In 1 ist eine erfindungsgemäße Anpassung einer Skala dargestellt.
• In 2 ist eine erfindungsgemäße Darstellung von Werteverläufen mittels einer Skala mit Teilbereichen unterschiedlicher Auflösung dargestellt.
• 3 stellt schematisch ein erfindungsgemäßes Fahrzeug mit einer erfindungsgemäßen Vorrichtung dar.

The present invention is explained in detail below on the basis of preferred embodiments with reference to the figures.

• In 1 an adaptation of a scale according to the invention is shown.
• In 2 a representation according to the invention of course of values is shown by means of a scale with partial areas of different resolution.
• 3 shows schematically a vehicle according to the invention with a device according to the invention.

In an embodiment according to the invention, n value ranges (W ₁ to W _n ) with associated scale specifications (S ₁ to S _n ) are for an ordinate of a display 1 defined, where n> 1. A smaller range of values W _{i is} always a subset or subset of a larger range of values W _{i + 1} . All value ranges have zero as the lowest limit.

When the display is switched on 1 (Initial state) represents the display 1 as a scale 4th , 5 represents an initial scale specification S _i for the ordinate with an initial value range W _i . If this value range W _{i is} sufficient for the representation of the corresponding section of the value curve to be represented on the display 2 , 3 is not off, the range of values W _i can be enlarged to a corresponding range of values W _{i + h} , the scale specification S _{i being given} by the scale specification S _{i + h} as a scale 4th , 5 is exchanged. The points to be displayed of the corresponding section of the value curve to be displayed are then new on the display 1 drawn.

Adaptation or adaptation can also take place in the opposite direction. If the current value range W _{i is} clearly too large for the section of the value curve to be displayed, this value range W _i can be reduced to a value range W _ih , with the scale specification S _i then also being the scale specification S _ih as a scale 4th , 5 is replaced and the points to be displayed are redrawn on the display.

$$\text{i}+\text{h}\le \text{n}\text{,}$$

$$\text{i}-\text{h}\ge 1$$

gilt. Dabei sind beliebige Wechsel zwischen den verschiedenen Wertebereichen und damit Skalavorgaben möglich.The scale 4th , 5 and the diagram contents (on the display 1 depicted value curves 2 , 3 ) will be adjusted accordingly. Here, h can have any values as long as $$\text{H}>\mathrm{0,}$$

$$\text{i}+\text{H}\le \text{n}\text{,}$$

$$\text{i}-\text{H}\ge 1$$

applies. Any change between the different value ranges and thus scale specifications is possible.

• • Die Anpassung erfolgt automatisch abhängig von dem auf der Anzeige 1 darzustellenden Abschnitt des entsprechenden Werteverlaufs. Sobald innerhalb des darzustellenden Abschnitts ein Wert auftritt, welcher zu einem größeren Wertebereich W_i+h als dem aktuell dargestellten Wertebereich W_i gehört, wird der Wertebereich der Ordinate und damit die Skalavorgabe für die Skala 4, 5 entsprechend ausgetauscht. Eine Anpassung in der entgegengesetzten Richtung (Rückskalierung) erfolgt ebenfalls automatisch, wenn alle Werte des darzustellenden Abschnitts in einem kleineren Wertebereich W_i-h dargestellt werden können.
• • Die Anpassung wird manuell von einem Benutzer erzwungen. Dabei ermöglicht ein der Anzeige 1 oder dem Fahrwerte-Diagramm zugehöriges Auswahlmenü dem Benutzer eine situationsabhängige Anpassung des Diagramms oder der Anzeige 1. Dabei sind der Fahrsituation (z.B. Stadtfahrt, Bergfahrt) entsprechende Konfigurationen möglich, wobei zu jeder Konfiguration ein Wertebereich W_i und eine entsprechende Skalavorgabe S_i für die Skala 4, 5 abgelegt ist.

Adjusting the scale 4th , 5 for the ordinate can be done in two different ways:

• • The adjustment takes place automatically depending on what is shown on the display 1 section of the corresponding value curve to be displayed. As soon as a value occurs within the section to be displayed which belongs to a larger value range W _{i + h} than the currently displayed value range W _i , the value range becomes the ordinate and thus the scale specification for the scale 4th , 5 exchanged accordingly. An adjustment in the opposite direction (downscaling) also takes place automatically if all values of the section to be displayed can be _{displayed in a smaller value range W ih.}
• • The adjustment is forced manually by a user. One enables the display 1 or the selection menu associated with the driving values diagram provides the user with a situation-dependent adaptation of the diagram or the display 1 . Configurations corresponding to the driving situation (for example city driving, mountain driving) are possible, with a value range W _i and a corresponding scale specification S _i for the scale for each configuration 4th , 5 is filed.

The scale can be analogous 6th for the abscissa, which depicts the time axis, can be designed adaptively. You can choose between several time intervals or time ranges in order to have the best possible overview for the display 1 to enable. For this purpose, m time intervals Z _j with associated scale specifications S _{j are} defined. Here, too, a smaller range of values Z _{j is} always a subset or subset of a larger range of values Z _{j + 1} and all ranges of values Z _j begin at zero as the lowest limit.

When the display is switched on 1 a time interval Z _j is initially displayed. If the measurement of the diagram contents lasts longer than the currently selected time interval Z _j , i.e. if the corresponding time duration of the section of the value curve to be displayed is greater than the currently selected time interval Z _j , you can switch to the next larger time interval Z _{j + 1.} The time intervals Z _j and thus the corresponding scale specifications S _{j are called up} step by step according to their sequence. Downscaling is only possible when the diagram or display is completely reset 1 (Delete all content) makes sense. An exemplary implementation or adaptation is in 1 shown.

• • Die Anpassung erfolgt automatisch. Dabei sind mehrere Zeitintervalle Z_j und entsprechende Skalavorgaben S_j vordefiniert. Sobald ein Wert dargestellt werden soll, der nicht mehr im aktuellen Zeitintervall Z_j liegt, wird das nächst größere Zeitintervall und damit die nächst größere Skalavorgabe für die Abszisse gewählt und angezeigt.
• • Die Anpassung wird von einem Benutzer manuell erzwungen. Dabei ermöglicht ein dem Fahrwerte-Diagramm oder der Anzeige 1 zugehöriges Auswahlmenü dem Benutzer, das Zeitintervall Z_j und damit die Skalavorgabe S_j je nach voraussichtlich benötigter Fahrtzeit einzustellen.

The adaptation or adjustment of the scale 6th for the abscissa can be made in two different ways:

• • The adjustment takes place automatically. Several time intervals Z _j and corresponding scale specifications S _{j are} predefined. As soon as a value is to be displayed which is no longer in the current time interval Z _j , the next larger time interval and thus the next larger scale specification for the abscissa is selected and displayed.
• • The adjustment is forced manually by a user. This enables the driving values diagram or the display 1 associated selection menu allows the user to set the time interval Z _j and thus the scale specification S _j depending on the expected travel time.

In 1 is an advertisement on the left 1 in front of the adjustment and on the right a display 1 to adjust the scale 6th shown for the abscissa. The display represents 1 two value curves 2 , 3 over the time shown on the abscissa. The first course of values 2 represents the energy recovered (recuperated) by the vehicle over time, for example during braking, while the second value curve 3 represents the consumption of the vehicle over time. There is also on the left-hand side in every advertisement 1 a first scale 4th for the ordinate on which the recovered energy can be determined in the unit Wh. On the right side of every ad 1 there is a second scale 5 for the ordinate, on which the consumption required by the vehicle at the corresponding point in time is shown in the unit mpg (“miles per gallon”). In other words, exists for the first value curve 2 a scale 4th and for the second course of values 3 another scale 5 each for the ordinate.

You can see it on the display 1 left that the time interval for the on display 1 section to be displayed for both the first value curve 2 as well as for the second course of values 3 equal to (or greater) than the maximum value (30 min) on the scale 6th for the abscissa is. The scale is therefore automatically adjusted 6th , the result of which is in the 1 is shown on the right, with the scale 6th with a maximum value of 30 minutes on a scale 6th is replaced with a maximum value of 60 min.

According to the invention, large value ranges can also be achieved with the aid of multi-part scales 4th are shown, with below a multi-part scale 4th a scale is understood, which different subranges 11 , 12th with a different resolution. In the 2 first scale shown 4th for the ordinate has two sub-areas 11 , 12th with a different resolution. The lower part 11 covers a range of values from 0 to 100 Wh with a resolution of 20 Wh per scale range, while the upper part of the range 12th covers a range of values from 100 to 500 Wh with a resolution of 100 Wh per scale unit. The two sub-areas are separated from one another by graphic means (e.g. line parallel to the abscissa) so that the difference is visible to the user.

Such a multi-part scale 4th can be assigned to a value range in the form of a scale specification S _j , thus also a multi-part scale S _j for adapting the display according to the invention 1 can be used.

If a section of a value curve to be displayed 2 Has values which are greater than the maximum value of the corresponding scale 4th does not necessarily have to be an adjustment of the scale 4th respectively. In this case, it is also possible according to the invention that part of the section of the value curve to be displayed 2 whose values are greater than the maximum value on the scale 4th is displayed with a corresponding symbol (arrow symbol in the time interval 30-35 min).

In 3 is schematically a vehicle according to the invention 10 shown, which a device according to the invention 9 includes, which in turn is designed such that the device 9 an ad 1 the device 9 adapts according to the invention in such a way that one or more value curves 2 , 3 on the display 1 be presented in a legible form.

In order to better evaluate the present invention compared to the prior art, the following should be stated.

According to the prior art, a driver of a vehicle can have various driving values, such as the current fuel consumption, the average consumption since the vehicle was started or since the last refueling, displayed numerically in the display of his instrument cluster. In the case of hybrid vehicles, the amount of recuperated energy in Wh can be specified as a further variable. A similar display can also be implemented in the vehicle's radio navigation system.

The present inventors have recognized that, for example, a radio navigation system, due to its larger and more powerful display, offers the possibility of displaying information about consumption or recuperated energy in a graphical manner in the form of a bar chart over a defined period of time. In particular, the averaged current consumption can be used in a hybrid-specific submenu of the display 3 the amount of energy recovered 2 can be compared over time, as is the case, for example, in 2 is made clear.

The values of the recuperated energy can, however, fluctuate greatly as a function of the route profile of a route to be covered by the vehicle and the driving style of the driver of the vehicle. For example, when driving in a mountainous landscape, significantly more energy is recovered (recuperated) than when driving in a city or on the motorway. In contrast to the current fuel consumption, this results in a significantly larger range of values, which is a graphic display 1 must cover.

As a result of the present invention, the driver or user is now able, in all of the above-mentioned cases, to be able to read off all values to be displayed with regard to consumption or recuperated energy in a similarly good and rapid manner. The present invention reduces the available area of the display 1 used efficiently, even if, for example, only relatively small values are displayed. This avoids poor readability and prevents wasted space in the diagram when only relatively small values are displayed.

List of reference symbols

1

display

2

Value curve of the recovered energy

3

Development of values for the energy consumed

4th

Scale for the ordinate

5

Scale for the ordinate

6th

Scale for the abscissa

8th

Display element to show a value greater than the maximum

9

contraption

10

vehicle

11

Part of the scale

12th

Part of the scale

Claims (13)

Method for displaying at least one value curve for a vehicle, each point of the at least one value curve (2, 3) being defined by a first value on a first axis of a display (1) and a second value on a second axis of the display (1) , wherein the at least one value curve (2, 3) is shown on the display (1), a value range for the first value that can be displayed on the first axis is defined by means of a scale (4; 5) of the display (1), characterized that the scale (4; 5) is automatically adjusted in such a way that • that a minimum value of the first values of a section of the at least one value curve (2, 3) to be displayed on the display (1) is greater than or equal to a minimum value of the scale (4; 5), and • that a maximum value of the first values of the The display (1) to be displayed section of the at least one value curve (2; 3) less than or equal to a maximum value of the scale (4; 5) is that several predetermined scale specifications are defined for the first axis, and that the scale (4; 5) is adapted is by selecting a corresponding one of the predetermined scale settings for the first axis, and / or that several predetermined scale settings are defined for the second axis, and that the further scale (6) is adapted by selecting a corresponding one of the predetermined scale settings for the second axis it is selected that the plurality of predetermined scale specifications for the first axis are defined for predetermined driving situations of the vehicle (10), and / or that the plurality of predetermined immten scale specifications for the second axis for predetermined driving situations of the vehicle (10) are defined, and that the predetermined driving situations include at least the following driving situations • a trip within a city, • a trip within a mountain range, and • a trip on a motorway. Procedure according to Claim 1 , characterized in that a difference between the maximum value of the first values of the section to be displayed on the display (1) and the minimum value of the first values of the section to be displayed on the display is less than a difference between the maximum value of the scale (4 ; 5) and the minimum value on the scale (4; 5). Procedure according to Claim 2 , characterized in that the predetermined threshold value is a predetermined percentage of the difference between the maximum value and the minimum value of the scale (4; 5). Method according to one of the preceding claims, characterized in that a value range for the second value that can be displayed on the second axis is defined by means of a further scale (6) of the display (1) so that the further scale (6) is automatically adapted in such a way that that a minimum value of the second values of the section of the at least one value curve (2, 3) to be shown on the display (1) is greater than or equal to a minimum value of the further scale (6), and that a maximum value of the second values of the on the display (1 ) to be displayed section of the at least one value curve (2, 3) is less than or equal to a maximum value of the further scale (6). Method according to one of the preceding claims, characterized in that a time range is defined on the second axis, so that the second values define points in time at which the respective first values are present. Method according to one of the preceding claims, characterized in that the scale (4; 5) is adapted when the maximum value of the first values of the section to be displayed on the display (1) is greater than the maximum value of the scale (4; 5) or when the minimum value of the first values of the section to be shown on the display (1) is smaller than the minimum value of the scale (4; 5), and / or that the further scale (6) is then adapted when the maximum value of the second values of the the section to be displayed on the display (1) is greater than the maximum value of the further scale (6) or if the minimum value of the second values of the section to be displayed on the display (1) is less than the minimum value of the further scale (6). Method according to one of the preceding claims, characterized in that the scale (4; 5) is adapted when Max (W ₁ ) * F ₁ <MaxSk ₁ applies, where Max (W ₁ ) is the maximum value of the first values on the Display (1) section to be displayed, MaxSk _{1 is} the maximum value of the scale (4; 5) and F _{1 is} a first factor for which 0.5 <F ₁ <1 applies, and / or that the further scale (6) then is adjusted if Max (W ₂ ) * F ₂ <MaxSk ₂ applies, where Max (W ₂ ) is the maximum value of the second values of the section to be shown on the display (1), MaxSk _{2 is} the maximum value of the further scale (6) and F _{2 is} a second factor for which 0.5 <F ₂ <1 applies. Method according to one of the preceding claims, characterized in that the scale (4; 5) is adapted in that a user specifies one of the plurality of scale specifications for the first axis, and / or that the further scale (6) is adapted by a user prescribes one of the several scale specifications for the second axis. Method according to one of the preceding claims, characterized in that that the scale (4) has several sub-areas (11, 12) with different resolutions, and / or that the further scale has several sub-areas with different resolutions. Method according to one of the preceding claims, characterized in that the at least one value curve comprises a first value curve (2) and a second value curve (3), that the first value curve (2) shows an energy recovered from the vehicle (10) on the first Axis over time on the display (1), and that the second value curve (3) shows an energy consumed by the vehicle (10) on the first axis over a time shown on the second axis on the display (1). Device with a display for a vehicle, the device (9) being designed to display at least one value curve (2, 3) on the display (1), each point of the at least one value curve (2, 3) being indicated by a first value a first axis and a second value is defined on a second axis, and wherein a range of values for the first value that can be displayed on the first axis is defined by means of a scale (4; 5) of the display (1), characterized in that the device ( 9) is designed in such a way that the device (9) adapts the scale (4; 5) in such a way that a minimum value of the first values of a section of the at least one value curve (2, 3) to be shown on the display (1) is greater than or equal to a minimum value of the scale (4; 5), and • that a maximum value of the first values of the section of the at least one value curve (2, 3) to be shown on the display (1) is less than or equal to a maximum value of the scale (4; 5) , d As the device (9) is designed that several predetermined scale specifications are defined for the first axis, and that the scale (4; 5) is adapted by selecting a corresponding one of the predetermined scale specifications for the first axis, and / or that the device (9) is designed so that several predetermined scale specifications are defined for the second axis, and that the further scale (6) is adapted is by selecting a corresponding one of the predetermined scale settings for the second axis, that the plurality of predetermined scale settings for the first axis are defined for predetermined driving situations of the vehicle (10), and / or that the plurality of predetermined scale settings for the second axis for predetermined driving situations of the vehicle (10) are defined, and that the predetermined driving situations include at least the following driving situations • a trip within a city, • a trip within a mountain range, and • a trip on a motorway. Device according to Claim 11 , characterized in that the device (9) for performing the method according to one of the Claims 2 - 10 is designed. Vehicle with a device according to Claim 11 or 12th .

Images