CA2221768C - Display unit for data dependent on a vehicle's energy consumption - Google Patents
Display unit for data dependent on a vehicle's energy consumption Download PDFInfo
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- CA2221768C CA2221768C CA002221768A CA2221768A CA2221768C CA 2221768 C CA2221768 C CA 2221768C CA 002221768 A CA002221768 A CA 002221768A CA 2221768 A CA2221768 A CA 2221768A CA 2221768 C CA2221768 C CA 2221768C
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- display unit
- energy
- energy consumption
- driving distance
- range
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 27
- 230000001419 dependent effect Effects 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims description 17
- 238000004146 energy storage Methods 0.000 claims description 4
- 239000000446 fuel Substances 0.000 abstract description 8
- 238000001228 spectrum Methods 0.000 abstract description 3
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0236—Circuits relating to the driving or the functioning of the vehicle for economical driving
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
- G01D1/02—Measuring arrangements giving results other than momentary value of variable, of general application giving mean values, e.g. root means square values
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F9/00—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine
- G01F9/008—Measuring volume flow relative to another variable, e.g. of liquid fuel for an engine where the other variable is the flight or running time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/174—Economic driving
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Instrument Panels (AREA)
- Indicating Measured Values (AREA)
Abstract
The invention concerns a display unit for data dependent on a vehicle's energy consumption. DE-PS-3 046 076 discloses a fuel-display device in which the instantaneous tank limit is displayed and the driver can see at a glance whether the fuel consumption falls within a predetermined range. The object of the invention is to provide a display unit for data dependent on a vehicle's energy consumption which clearly displays the most important data dependent on energy consumption and the contents of the energy store. This object is achieved in that the display device displays a tank limit range in dependence on the instantaneous amount of energy available in the storage system and on a vehicle-specific consumption spectrum, the tank limit range resulting from the minimum and maximum average consumption of the engine.
Description
~~/
DISPLAY UNIT FOR DATA DEPENDENT ON A VEHICLE'S ENERGY
CONSUMPTION
The invention relates to a display unit for data dependent on the energy consumption of a vehicle according to the preamble of Claim 1.
From German Patent Document DE-PS 30 46 076, a fuel display unit is known which has devices for measuring, analyzing and displaying the instantaneous fuel consumption and the resulting data. The following is specifically indicated: the tank limit in the case of the instantaneous driving condition on the basis ~.of constant circumstances in the form of a display of figures;
the fuel quantity contained in the fuel tank in the form of figures; the flashing of a colored light when a minimum quantity of fuel is reached; and the display of the instantaneous fuel consumption,by lights of three different colors, in which case the lights indicate during the flashing whether the fuel consumption is within, below or above a predetermined,range. In the case of this tank limit display, it is a disadvantage that the indicated numbers change constantly because of changing driving conditions and thus may irritate the driver and divert his attention. It is another disadvantage that these so-called vehicle computers, as a rule, are offered only in the case of higher-priced vehicles or as optional equipment.
It is an object of the invention to provide a display unit for data dependent on a vehicle's energy consumption which, in a clear manner, displays the most important data dependent on the energy consumption and the contents of the energy storage device.
According to the invention, this object is achieved by the characteristics of Claim 1.
The display unit according to the invention has a tank limit display which indicates to the driver the tank limit range still to be expected, for example, in kilometers. In a first embodiment of a display unit, this tank limit range is obtained _T as a function of the amount of energy instantaneously situated in the energy storage system and the minimal and maximal average consumption of the vehicle engine in conjunction with the vehicle-specific parameters.
In a second embodiment of a display unit according to the invention, in the case of the indicated tank limit range, the driver-specific peculiarities are also taken into account. These driver-specific peculiarities may, for example, be sporty or economical driving methods. For example, from an empirically determined range of an average consumption, which covers a predetermined percentage, for example, between 50 -75%, of a driver's vehicle handling, the tank limit range is limited resulting from the vehicle-specific average consumption. A
further limitation of this resulting tank limit range is can achieved in that, over certain time period, the vehicle handling is measured and analyzed of a driver fixedly assigned to the vehicle. From these data, a minimal and maximal average consumption is determined and is used for calculating the tank limit range. The indicated tank limit range will then become even narrower.
In the case of both embodiments, it is advantageous that, because of the display of the tank limit of the vehicle, the indication of the instantaneous energy amount in the storage system or in the energy tank can be eliminated and the driver knows directly from the indicated tank limit range how far he can still drive with the still existing stored energy as a function of the vehicle's consumption and under various operating conditions.
It is another advantage that a display of tank limit jumps in the case of a changed driving method or changed driving conditions is eliminated because the indication of a range contains these variable parameters. If a vehicle is, for example, driven by different drivers, as occurs in the case of a rented car, the respective driver can immediately see which tank limit can still be maximally expected without knowing the consumption of the engine and the total content of the fuel tank.
In an advantageous embodiment, the display of the minimal or maximal tank limit takes place by means of an indicator instrument with two arms which can be controlled independently of one another. In another advantageous embodiment, the display of the tank limit range takes place by way of a bar display with a highlighted area, in which case the highlighting can take place in color and/or in an illuminated manner. In a third advantageous embodiment, the indication of the tank limit range takes place by way of a digital display in the form of mutually spaced numbers.
In an advantageous embodiment, the tank limit scale is divided in an enlarged manner starting from the range of the reserve quantity so that the driver can precisely estimate the possible tank limit. It is also advantageous for the range scale in the upper range, in which a relatively large amount of energy is still contained in the energy tank, to have a smaller or narrower graduation. The energy reserve quantity can be displayed in that the display color is changed. As a result, a separate reserve light can be eliminated.
In an advantageous embodiment, the tank limit range to be expected with the instantaneous or current driving method is visually displayed within the highlighted or displayed tank limit range.
Another advantageous embodiment of the display unit is characterized in that the indicated tank limit range is limited or shortened by a constant or variable percentage. In a space-saving embodiment, the upper range of the tank limit scale is cut off, which in particular relates to the tank limit in the case of a particularly economical driving method; that is, the maximal tank limit starts with an average or median value.
It is advantageous that, in the case of the display unit according to the invention, the limit values of the average consumptions used as the basis can be varied automatically by way of a corresponding software during the driving operation. If the analysis device of the display unit according to the invention determines that there is an exceeding of or falling below the empirically determined limit values, the limited tank limit range is expanded and adapted to these limit values.
In a further embodiment, in addition to the tank limit, the amount of energy instantaneously contained in the energy tank is also displayed or can be queried.
In the following, embodiments of the invention are described as examples in the drawings.
Figures la, b and c are each views of an indicator instrument having a double arm and a linear tank limit scale, the double arm in each case indicating different tank limit ranges, specifically the tank limit range in the case of an energy reserve quantity, in the case of a half-filled energy tank, and in the case of a completely filled energy tank;
Figures 2a, b and c are each views of a bar display having a linear tank limit scale with a highlighted tank limit range, specifically the tank limit range in the case of an energy reserve quantity, in the case of a half-filled energy tank, and in the case of a completely filled energy tank;
Figure 3 is a view of a bar display corresponding to Figure 2b, in which case the highlighted tank limit range is divided into two parts by a cutout or a window and in which case this window indicates the tank limit to be expected in the case of the current driving method;
Figure 4 is a view of a bar display combined with a display of the energy amount situated in the storage system;
Figure 5, is a view of a bar display with a non-linear tank limit scale; and Figure 6 is a view of a digital display with the minimal and the maximal tank limit as well as the tank limit to be expected in the case of the current driving method.
Figures la, lb and lc each show a display device 1 constructed as an indicator instrument 2 having two arms 3 and 4.
The indicator instrument 2 is provided with a linear tank limit scale 5. The indicator instrument 2 is constructed as a round instrument. The arms 3 and 4 are controlled separately from one another and can be moved separately from one another.
Figure la relates to a tank limit range in the case of an energy reserve quantity. As illustrated in Figure la, the two arms 3 and 4 are relatively close together because of the small tank limit range.
Figure lb indicates a tank limit range when the storage system or the energy tank is half filled. Because of the relatively high energy reserve, the two arms 3 and 4 are relatively far apart in comparison to the position in Figure la.
The tank limit range shown in Figure lc is limited. As in the other Figures la and lb, the arm 3 indicates the minimal tank limit. However, in contrast to Figures la and lb, the arm 4 does not indicate the maximal tank limit but a tank limit below it.
This tank limit can be determined as an average value, for example, from experimental values.
Figures 2a, 2b and 2c relate to a display device 1 which is constructed as a bar display 6. The bar display 6 also has a linear tank limit scale 7. The tank limit range is illustrated by a visually highlighted bar 8. The highlighting takes place, for example, by an illumination of the tank limit range resulting from the existing amount of energy. As in the case of the indicator instrument 2, the tank limit scale 7 ends at a tank limit which is below the maximally possible tank limit. Like the arm 3, the bar 8 also shows the minimal tank limit by means of its left boundary line 9. In Figures 2a and 2b, the right boundary line 10 represents the maximal tank limit. Only in Figure 2c, the right boundary line 10 is displaced toward the left boundary line 9. When the bar of Figure 2b is compared with the bar of Figure 2a, it is found that, in the case of a half-filled energy tank, the bar 8 is correspondingly long, while, in the case of a small amount of energy, the bar 8 is correspondingly short. This leads in a simple manner to a larger limitation of the possible tank limit.
Figure 3 shows a bar display 11 similar to the bar display 6 of Figure 2a to 2c, but with the difference that one bar 12 of the bar display 11 which indicates the tank limit range is provided with a window 13 which indicates the tank limit to be expected in the case of the current driving method. In addition, the bar 12 has a left and a right boundary line 14 and 15 which represents the minimal and the maximal tank limit.
Figure 4 illustrates a bar display 26 in the case of which the tank limit scale 27 in its lower range 28, for example, between 0 and 300 kilometers, is non-linearly divided. By the expansion of this lower range 28 and the narrowing of the bar 30 indicating the tank limit range 29, the remaining tank limit is relatively precisely bounded. In contrast to the bar display of Figure 3, the tank limit scale 27 is provided on its end 32 bounding the upper range 31 with a point which symbolizes that, in the case of a correspondingly economical method of driving, the tank limit is larger than the indicated numerical value of 600. Directly below the bar display 26, a display device 33 is illustrated for the amount of energy instantaneously situated in the storage system or in a tank. The scale 34 of the tank content display device 33 is non-linearly divided corresponding to the tank limit scale 27 in that a lower range 35, for example, between 0 to 50% of the tank content, is shown at a larger scale.
The lower range 35 of the tank content display device 33 is adapted in its division to the lower range of the tank limit scale 27 of the bar display 26, which is also the case for the corresponding upper ranges.
Figure 5 shows a bar display 16 in the case of which the tank limit scale 17 has a non-linear construction. In Figure 5, the scale in the lower range 18 of the tank limit scale 17 is very enlarged. In the example illustrated in Figure 5, the tank limit for the remaining 100 kilometers is very spread. A bar 19 covers a tank limit range whose average value is at approximately 15 kilometers. In the upper range 20 of the tank limit scale 17, which extends approximately from scale division 300 to the end 21 of the tank limit scale 17 at a tank limit indication of >600, the scale is increasingly reduced.
Figure 6 shows a display device 1 which is constructed as a digital display 22. The two outer numerical values 23, 24 indicate the minimal and the maximal tank limit. The center numerical value 25 indicates the tank limit to be expected with the actual method of driving.
All display units have in common that in the upper range of a large tank limit, because of the high supply of energy or fuel, there is a large difference between a maximally possible tank limit and a minimally possible tank limit, this difference being caused, for example, by an economical driving method or by a sporty driving method. The indicated tank limit range is the narrower and thus the more limited, the lower the energy supply.
For determining the tank limit range, the respective level of the energy tank is required as the input signal; that is the instantaneously existent energy quantity and the vehicle-specific and possibly the driver-specific consumption spectrum. In the case of the limitation of the tank limit range by taking into account a general driver-specific consumption spectrum, as a rule, the tank limit range is laid out to a general value, for example, to 750 of all concerned drivers. In addition, a narrowed-down tank limit range can be optimized also by way of the calculation of the actual consumption during the driving operation. For displaying the tank limit range, an instantaneous display can be shown in the display unit which corresponds to the actual energy consumption.
As the result of the display unit, separate tank limit indicators, warning lights and/or instantaneous consumption indicators can be eliminated. The display unit can be used for all energy types which can be processed by an engine, irrespective of whether the energy is obtained from gasoline, diesel, electric current, solar energy or gas, etc.
CONSUMPTION
The invention relates to a display unit for data dependent on the energy consumption of a vehicle according to the preamble of Claim 1.
From German Patent Document DE-PS 30 46 076, a fuel display unit is known which has devices for measuring, analyzing and displaying the instantaneous fuel consumption and the resulting data. The following is specifically indicated: the tank limit in the case of the instantaneous driving condition on the basis ~.of constant circumstances in the form of a display of figures;
the fuel quantity contained in the fuel tank in the form of figures; the flashing of a colored light when a minimum quantity of fuel is reached; and the display of the instantaneous fuel consumption,by lights of three different colors, in which case the lights indicate during the flashing whether the fuel consumption is within, below or above a predetermined,range. In the case of this tank limit display, it is a disadvantage that the indicated numbers change constantly because of changing driving conditions and thus may irritate the driver and divert his attention. It is another disadvantage that these so-called vehicle computers, as a rule, are offered only in the case of higher-priced vehicles or as optional equipment.
It is an object of the invention to provide a display unit for data dependent on a vehicle's energy consumption which, in a clear manner, displays the most important data dependent on the energy consumption and the contents of the energy storage device.
According to the invention, this object is achieved by the characteristics of Claim 1.
The display unit according to the invention has a tank limit display which indicates to the driver the tank limit range still to be expected, for example, in kilometers. In a first embodiment of a display unit, this tank limit range is obtained _T as a function of the amount of energy instantaneously situated in the energy storage system and the minimal and maximal average consumption of the vehicle engine in conjunction with the vehicle-specific parameters.
In a second embodiment of a display unit according to the invention, in the case of the indicated tank limit range, the driver-specific peculiarities are also taken into account. These driver-specific peculiarities may, for example, be sporty or economical driving methods. For example, from an empirically determined range of an average consumption, which covers a predetermined percentage, for example, between 50 -75%, of a driver's vehicle handling, the tank limit range is limited resulting from the vehicle-specific average consumption. A
further limitation of this resulting tank limit range is can achieved in that, over certain time period, the vehicle handling is measured and analyzed of a driver fixedly assigned to the vehicle. From these data, a minimal and maximal average consumption is determined and is used for calculating the tank limit range. The indicated tank limit range will then become even narrower.
In the case of both embodiments, it is advantageous that, because of the display of the tank limit of the vehicle, the indication of the instantaneous energy amount in the storage system or in the energy tank can be eliminated and the driver knows directly from the indicated tank limit range how far he can still drive with the still existing stored energy as a function of the vehicle's consumption and under various operating conditions.
It is another advantage that a display of tank limit jumps in the case of a changed driving method or changed driving conditions is eliminated because the indication of a range contains these variable parameters. If a vehicle is, for example, driven by different drivers, as occurs in the case of a rented car, the respective driver can immediately see which tank limit can still be maximally expected without knowing the consumption of the engine and the total content of the fuel tank.
In an advantageous embodiment, the display of the minimal or maximal tank limit takes place by means of an indicator instrument with two arms which can be controlled independently of one another. In another advantageous embodiment, the display of the tank limit range takes place by way of a bar display with a highlighted area, in which case the highlighting can take place in color and/or in an illuminated manner. In a third advantageous embodiment, the indication of the tank limit range takes place by way of a digital display in the form of mutually spaced numbers.
In an advantageous embodiment, the tank limit scale is divided in an enlarged manner starting from the range of the reserve quantity so that the driver can precisely estimate the possible tank limit. It is also advantageous for the range scale in the upper range, in which a relatively large amount of energy is still contained in the energy tank, to have a smaller or narrower graduation. The energy reserve quantity can be displayed in that the display color is changed. As a result, a separate reserve light can be eliminated.
In an advantageous embodiment, the tank limit range to be expected with the instantaneous or current driving method is visually displayed within the highlighted or displayed tank limit range.
Another advantageous embodiment of the display unit is characterized in that the indicated tank limit range is limited or shortened by a constant or variable percentage. In a space-saving embodiment, the upper range of the tank limit scale is cut off, which in particular relates to the tank limit in the case of a particularly economical driving method; that is, the maximal tank limit starts with an average or median value.
It is advantageous that, in the case of the display unit according to the invention, the limit values of the average consumptions used as the basis can be varied automatically by way of a corresponding software during the driving operation. If the analysis device of the display unit according to the invention determines that there is an exceeding of or falling below the empirically determined limit values, the limited tank limit range is expanded and adapted to these limit values.
In a further embodiment, in addition to the tank limit, the amount of energy instantaneously contained in the energy tank is also displayed or can be queried.
In the following, embodiments of the invention are described as examples in the drawings.
Figures la, b and c are each views of an indicator instrument having a double arm and a linear tank limit scale, the double arm in each case indicating different tank limit ranges, specifically the tank limit range in the case of an energy reserve quantity, in the case of a half-filled energy tank, and in the case of a completely filled energy tank;
Figures 2a, b and c are each views of a bar display having a linear tank limit scale with a highlighted tank limit range, specifically the tank limit range in the case of an energy reserve quantity, in the case of a half-filled energy tank, and in the case of a completely filled energy tank;
Figure 3 is a view of a bar display corresponding to Figure 2b, in which case the highlighted tank limit range is divided into two parts by a cutout or a window and in which case this window indicates the tank limit to be expected in the case of the current driving method;
Figure 4 is a view of a bar display combined with a display of the energy amount situated in the storage system;
Figure 5, is a view of a bar display with a non-linear tank limit scale; and Figure 6 is a view of a digital display with the minimal and the maximal tank limit as well as the tank limit to be expected in the case of the current driving method.
Figures la, lb and lc each show a display device 1 constructed as an indicator instrument 2 having two arms 3 and 4.
The indicator instrument 2 is provided with a linear tank limit scale 5. The indicator instrument 2 is constructed as a round instrument. The arms 3 and 4 are controlled separately from one another and can be moved separately from one another.
Figure la relates to a tank limit range in the case of an energy reserve quantity. As illustrated in Figure la, the two arms 3 and 4 are relatively close together because of the small tank limit range.
Figure lb indicates a tank limit range when the storage system or the energy tank is half filled. Because of the relatively high energy reserve, the two arms 3 and 4 are relatively far apart in comparison to the position in Figure la.
The tank limit range shown in Figure lc is limited. As in the other Figures la and lb, the arm 3 indicates the minimal tank limit. However, in contrast to Figures la and lb, the arm 4 does not indicate the maximal tank limit but a tank limit below it.
This tank limit can be determined as an average value, for example, from experimental values.
Figures 2a, 2b and 2c relate to a display device 1 which is constructed as a bar display 6. The bar display 6 also has a linear tank limit scale 7. The tank limit range is illustrated by a visually highlighted bar 8. The highlighting takes place, for example, by an illumination of the tank limit range resulting from the existing amount of energy. As in the case of the indicator instrument 2, the tank limit scale 7 ends at a tank limit which is below the maximally possible tank limit. Like the arm 3, the bar 8 also shows the minimal tank limit by means of its left boundary line 9. In Figures 2a and 2b, the right boundary line 10 represents the maximal tank limit. Only in Figure 2c, the right boundary line 10 is displaced toward the left boundary line 9. When the bar of Figure 2b is compared with the bar of Figure 2a, it is found that, in the case of a half-filled energy tank, the bar 8 is correspondingly long, while, in the case of a small amount of energy, the bar 8 is correspondingly short. This leads in a simple manner to a larger limitation of the possible tank limit.
Figure 3 shows a bar display 11 similar to the bar display 6 of Figure 2a to 2c, but with the difference that one bar 12 of the bar display 11 which indicates the tank limit range is provided with a window 13 which indicates the tank limit to be expected in the case of the current driving method. In addition, the bar 12 has a left and a right boundary line 14 and 15 which represents the minimal and the maximal tank limit.
Figure 4 illustrates a bar display 26 in the case of which the tank limit scale 27 in its lower range 28, for example, between 0 and 300 kilometers, is non-linearly divided. By the expansion of this lower range 28 and the narrowing of the bar 30 indicating the tank limit range 29, the remaining tank limit is relatively precisely bounded. In contrast to the bar display of Figure 3, the tank limit scale 27 is provided on its end 32 bounding the upper range 31 with a point which symbolizes that, in the case of a correspondingly economical method of driving, the tank limit is larger than the indicated numerical value of 600. Directly below the bar display 26, a display device 33 is illustrated for the amount of energy instantaneously situated in the storage system or in a tank. The scale 34 of the tank content display device 33 is non-linearly divided corresponding to the tank limit scale 27 in that a lower range 35, for example, between 0 to 50% of the tank content, is shown at a larger scale.
The lower range 35 of the tank content display device 33 is adapted in its division to the lower range of the tank limit scale 27 of the bar display 26, which is also the case for the corresponding upper ranges.
Figure 5 shows a bar display 16 in the case of which the tank limit scale 17 has a non-linear construction. In Figure 5, the scale in the lower range 18 of the tank limit scale 17 is very enlarged. In the example illustrated in Figure 5, the tank limit for the remaining 100 kilometers is very spread. A bar 19 covers a tank limit range whose average value is at approximately 15 kilometers. In the upper range 20 of the tank limit scale 17, which extends approximately from scale division 300 to the end 21 of the tank limit scale 17 at a tank limit indication of >600, the scale is increasingly reduced.
Figure 6 shows a display device 1 which is constructed as a digital display 22. The two outer numerical values 23, 24 indicate the minimal and the maximal tank limit. The center numerical value 25 indicates the tank limit to be expected with the actual method of driving.
All display units have in common that in the upper range of a large tank limit, because of the high supply of energy or fuel, there is a large difference between a maximally possible tank limit and a minimally possible tank limit, this difference being caused, for example, by an economical driving method or by a sporty driving method. The indicated tank limit range is the narrower and thus the more limited, the lower the energy supply.
For determining the tank limit range, the respective level of the energy tank is required as the input signal; that is the instantaneously existent energy quantity and the vehicle-specific and possibly the driver-specific consumption spectrum. In the case of the limitation of the tank limit range by taking into account a general driver-specific consumption spectrum, as a rule, the tank limit range is laid out to a general value, for example, to 750 of all concerned drivers. In addition, a narrowed-down tank limit range can be optimized also by way of the calculation of the actual consumption during the driving operation. For displaying the tank limit range, an instantaneous display can be shown in the display unit which corresponds to the actual energy consumption.
As the result of the display unit, separate tank limit indicators, warning lights and/or instantaneous consumption indicators can be eliminated. The display unit can be used for all energy types which can be processed by an engine, irrespective of whether the energy is obtained from gasoline, diesel, electric current, solar energy or gas, etc.
Claims (18)
1. A display unit for data dependent on energy consumption of a vehicle, the vehicle having at least one motor and at least one storage system which can be filled with energy, having devices for determining a remaining amount of energy instantaneously situated in said storage system and energy consumption parameters of the vehicle, and having devices for calculating a driving distance which can be reached with said remaining amount of energy and said energy consumption parameters, wherein, as a function of said amount of remaining energy in the storage system and as a function of said energy consumption parameters, the display unit displays a range of said driving distances which is obtained from a minimal and a maximal average energy consumption of the motor.
2. A display unit according to claim 1, wherein at least one of said minimal and said maximal average energy consumptions are limited by a defined value.
3. A display unit according to claim 2, wherein said defined value is limited by driver-specific limit values.
4. A display unit according to claim 2, wherein said defined value by which said minimal and said maximal average energy consumptions and said displayed driving distance range is limited, is determined empirically.
5. A display unit according to claim 1, wherein said driving distance range is displayed on an indicator instrument having two arms which can be controlled and moved independently of one another.
6. A display unit according to claim 1, wherein said driving distance range is displayed on a bar display as a visually highlighted bar.
7. A display unit according to claim 1, wherein said driving distance range is displayed on a digital display.
8. A display unit according to claim 1, wherein the display unit is provided with a driving distance scale which is linearly divided.
9. A display unit according to claim 1, wherein the display unit is provided with a driving distance scale which is non-linear.
10. A display unit according to claim 1, wherein an expected driving distance based on an actual method of driving is displayed within said driving distance range.
11. A display unit according to claim 1, wherein said display unit compares said minimal and maximal average energy consumption values with actual limit values based on actual energy consumption, and, when said actual limit values fall outside of said minimal and said maximal average energy consumption values, uses the actual limit values for calculating said driving distance range.
12. A display unit according to claim 1, wherein, starting from a lower driving distance value, the display visually changes to heighten the driver's attention.
13. A display unit according to claim 1, wherein an upper range of the tank limit scale is cut off which, in particular, concerns a tank limit in the case of a particularly economical method of driving.
14. A display unit according to claim 1, wherein, in addition to a tank limit range, the amount of energy instantaneously situated in the storage system can also be displayed or queried in the display unit.
15. A method of displaying an expected range of driving distances for a vehicle having a driving unit and an energy storage unit, comprising:
sensing an amount of remaining energy in said energy storage unit;
determining an average minimum energy consumption rate and an average maximum energy consumption rate of said driving unit;
calculating a minimum expected driving distance based on said sensed amount of remaining energy and said average maximum energy consumption rate;
calculating a maximum expected driving distance based on said sensed amount of remaining energy and said average minimum energy consumption rate; and displaying said expected range of driving distances defined by said minimum expected driving distance and said maximum expected driving distance.
sensing an amount of remaining energy in said energy storage unit;
determining an average minimum energy consumption rate and an average maximum energy consumption rate of said driving unit;
calculating a minimum expected driving distance based on said sensed amount of remaining energy and said average maximum energy consumption rate;
calculating a maximum expected driving distance based on said sensed amount of remaining energy and said average minimum energy consumption rate; and displaying said expected range of driving distances defined by said minimum expected driving distance and said maximum expected driving distance.
16. A method according to claim 15, wherein said displaying step comprises displaying said expected range of driving distances on a display unit including a driving distance scale and two arms, further comprising:
controlling one of said arms to point to a value on said scale corresponding to said minimum expected driving distance; and controlling the other of said arms to point to a value on said scale corresponding to said maximum expected driving distance.
controlling one of said arms to point to a value on said scale corresponding to said minimum expected driving distance; and controlling the other of said arms to point to a value on said scale corresponding to said maximum expected driving distance.
17. A method according to claim 15, wherein said displaying step comprises displaying said expected range of driving distances on a display unit including a driving distance scale and a bar display adjacent or on said scale, further comprising:
controlling said bar display such that a bar displayed thereon has a first end adjacent or on a value on said scale corresponding to said minimum expected driving distance and such that said bar has a second end adjacent or on a value on said scale corresponding to said maximum expected driving distance.
controlling said bar display such that a bar displayed thereon has a first end adjacent or on a value on said scale corresponding to said minimum expected driving distance and such that said bar has a second end adjacent or on a value on said scale corresponding to said maximum expected driving distance.
18. A method according to claim 15, wherein said determining step comprises determining said average minimum energy consumption rate and said average maximum energy consumption rate of said driving unit based on at least one of:
(a) vehicle-specific energy consumption parameters;
and (b) driver-specific energy consumption parameters.
(a) vehicle-specific energy consumption parameters;
and (b) driver-specific energy consumption parameters.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19612062.4 | 1996-03-27 | ||
| DE19612062A DE19612062B4 (en) | 1996-03-27 | 1996-03-27 | Display unit for data dependent on the energy consumption of a vehicle |
| PCT/EP1997/000821 WO1997036152A1 (en) | 1996-03-27 | 1997-02-20 | Display unit for data dependent on a vehicle's energy consumption |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2221768A1 CA2221768A1 (en) | 1997-10-02 |
| CA2221768C true CA2221768C (en) | 2005-08-09 |
Family
ID=7789552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002221768A Expired - Fee Related CA2221768C (en) | 1996-03-27 | 1997-02-20 | Display unit for data dependent on a vehicle's energy consumption |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0828996A1 (en) |
| JP (1) | JPH11507134A (en) |
| KR (1) | KR100474796B1 (en) |
| CA (1) | CA2221768C (en) |
| DE (1) | DE19612062B4 (en) |
| WO (1) | WO1997036152A1 (en) |
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| DE29715340U1 (en) * | 1997-08-27 | 1998-02-12 | Pasligh, Josef, 26871 Papenburg | Double tachometer |
| DE19741316A1 (en) * | 1997-09-19 | 1999-03-25 | Bayerische Motoren Werke Ag | Display device for vehicles for displaying the range |
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| DE19941946C2 (en) * | 1999-09-03 | 2003-10-09 | Volkswagen Ag | Method and device for displaying fill level data of operating fluids |
| FR2898551B1 (en) * | 2006-03-15 | 2009-02-06 | Renault Sas | MOTOR VEHICLE COMPRISING MEANS FOR DISPLAYING THE AUTONOMY AND THE QUANTITY OF FUEL IN THE RESERVOIR |
| DE102007057548A1 (en) * | 2007-11-29 | 2009-06-04 | Volkswagen Ag | Indicator for being integrated into instrument panel of motor vehicle cockpit, visually and quantitatively represents characteristic of power train, where indicated characteristic is power transferred over set of propelled wheels |
| DE102008052061A1 (en) * | 2008-10-17 | 2010-04-22 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Method for correction of fuel consumption signal of control of internal combustion engine of motor vehicle, involves receiving correction factor as correction value in display such that corrected fuel consumption signal is obtained |
| DE102009011015B4 (en) * | 2009-02-28 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Method for displaying a remaining range of a motor vehicle |
| DE102009039092B4 (en) | 2009-08-27 | 2022-06-30 | Bayerische Motoren Werke Aktiengesellschaft | Method for determining a potential remaining range for a motor vehicle |
| DE102009060283B4 (en) * | 2009-12-23 | 2022-03-03 | Volkswagen Ag | Method for operating a motor vehicle |
| JP2011246034A (en) * | 2010-05-28 | 2011-12-08 | Nippon Seiki Co Ltd | Display control device, display device and program |
| JP5630356B2 (en) * | 2011-03-28 | 2014-11-26 | 株式会社デンソー | Display device |
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| JP5348257B2 (en) * | 2012-01-16 | 2013-11-20 | トヨタ自動車株式会社 | Power display device and power display method |
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| KR101936431B1 (en) * | 2012-03-20 | 2019-01-08 | 현대자동차주식회사 | DTE estimation method of electric vehicle |
| JP2014054099A (en) * | 2012-09-07 | 2014-03-20 | Toyota Motor Corp | Cruisible distance display device |
| DE102012019056A1 (en) | 2012-09-27 | 2013-03-14 | Daimler Ag | Method for determining remaining range of e.g. electric car, involves partially determining remaining range by central computer based on traffic state information, where communication apparatus is in communication with computer |
| DE102012022715A1 (en) | 2012-11-21 | 2013-05-29 | Daimler Ag | Method for creating or updating consumption profile of motor vehicle e.g. motor car, involves processing parameterized consumption for consumption profile and putting down consumption profile in memory in motor car |
| JP5845220B2 (en) * | 2013-08-21 | 2016-01-20 | 富士重工業株式会社 | In-vehicle display device |
| DE102015008098B4 (en) * | 2015-06-25 | 2023-03-30 | Wika Alexander Wiegand Se & Co. Kg | Measuring device with spread measured value output |
| DE102015222795A1 (en) | 2015-11-18 | 2017-05-18 | Bayerische Motoren Werke Aktiengesellschaft | Display unit for displaying a remaining range in a motor vehicle |
| DE102017207642A1 (en) | 2017-05-05 | 2018-11-08 | Bayerische Motoren Werke Aktiengesellschaft | Display unit for a hybrid vehicle |
| DE102019117390A1 (en) * | 2019-06-27 | 2020-12-31 | Bayerische Motoren Werke Aktiengesellschaft | Electrified motor vehicle with a display unit for displaying at least one remaining range |
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| DE102019216455A1 (en) * | 2019-10-25 | 2021-04-29 | Volkswagen Aktiengesellschaft | Method and system for performing an at least partially automated driving maneuver of a vehicle |
| DE102021102335A1 (en) | 2021-02-02 | 2022-08-04 | Bayerische Motoren Werke Aktiengesellschaft | Display unit for displaying a range in a motor vehicle |
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-
1996
- 1996-03-27 DE DE19612062A patent/DE19612062B4/en not_active Expired - Fee Related
-
1997
- 1997-02-20 KR KR1019970708188A patent/KR100474796B1/en not_active IP Right Cessation
- 1997-02-20 EP EP97903344A patent/EP0828996A1/en not_active Ceased
- 1997-02-20 WO PCT/EP1997/000821 patent/WO1997036152A1/en active IP Right Grant
- 1997-02-20 CA CA002221768A patent/CA2221768C/en not_active Expired - Fee Related
- 1997-02-20 JP JP9533970A patent/JPH11507134A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0828996A1 (en) | 1998-03-18 |
| JPH11507134A (en) | 1999-06-22 |
| DE19612062A1 (en) | 1997-10-02 |
| KR19990014844A (en) | 1999-02-25 |
| KR100474796B1 (en) | 2005-06-27 |
| CA2221768A1 (en) | 1997-10-02 |
| DE19612062B4 (en) | 2007-04-05 |
| WO1997036152A1 (en) | 1997-10-02 |
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| EEER | Examination request | ||
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