DE 197 55 470 AI
`
`{.19} Fifi‘ZDfiRAL REPUBLEC
`0F GERMANY
`
`(12} Published unexamined
`German patent documem
`(10) DE 19? 55 470 A}
`
`(51) Inn CL
`G {)1 D 13/10
`(3 (11 P 1/08
`G 08 G 1/0962
`B 60 D 35M)
`
`GERMAN PATENT OFFICE (21} Application number: 197 55 470.9
`{22) Filing date: Decamber 3. 1997
`{433132116 of publi‘eation; Ssptember 24, 1998
`
`(66} Domastic. priority:
`
`297 ()3 9132.4
`297 03 9113.2
`297 03 904.0
`297 ()4 844.9
`
`24 Feb 97
`24 Feb 9’?
`24 Feb 97
`7 Mar 97
`
`297 09 56313
`297 10 675.9
`
`25 May 97
`‘16 Jun 97
`
`(71) Applicant:
`Tegeflzoff, Marius, Dipl—Ingw 10559 Berlin, DE
`{‘74} Agent:
`PPENNING MEINEGE: PARTNER. 10707 Berlitz
`(72) inventcm
`Same as applicant
`(551Primefi pubiicatims m be taktzn into cunxideraliun far
`evaiuating patentability:
`DE 38 29 803 C1
`DE 37 14 (3172 C2
`DE 36 32 63?. CZ
`DE 34 21> 382 C3
`
`DE19755470A‘3
`
`DE—AS 22 41 427
`1313196 218% A1
`1313196 15 249 A1
`BE 195 07 360 A]
`D1344 09422 A1
`131343 ‘21 146 A]
`301343 ()7 367 A1
`D1342 40465 A1
`DIEA‘iZ 30299 A1
`D830 1517!? A1
`DEA“) 11 840 A1
`D1337 32144 AI
`D1336 22 £58 A]
`DE 35 37 364 A1
`DE 33 15 386 A1
`DE 311 41;) 525 A1
`131232 38 487 A]
`D1331 38154 A1
`913—03 15% 630
`D133 29? 11 094 U 1.
`DE 297 (15$ 844 U1
`DE ”296 ()7 905111
`GB 2317111 658 A
`US 54 37 £85 A
`EP ()3 '96 071 A2
`The mllmving infornmgion i3 taken from the documents pmvifled by the invenmr
`(54) Display system far $311161ch
`(5’?) A display system {3) for vehicies is;
`pmmmd, whiuh cantaim; a ficraea (3'?) and
`an image generating C(Jmputer {33) and is
`connected to, infonnatiQn-prmiciing
`elmmnm (31} of the vehicle anti which
`sham/s the Elimination on the screen {371
`with the aid 0f at least 0m": winter anti at
`3635:0118 96322316. At least we addititmal
`
`
`
`marking forshuwmg additimml
`in: displayed an the scale.
`
`informatiun
`
`DE19755470A1
`
`Garmin International, Inc.
`
`, Exhibit 1003 - 1
`
`

`

`DE 197 55 470 Al
`
`Specification
`
`The present invention relates to a display
`system for
`vehicles
`according
`to
`the
`preamble of the main claim.
`
`The advent of new teclmologics; infield of
`motor vehicles also covers a redesign of the
`automobile/driver interface, in particular the
`display
`technology
`with
`screens.
`Supplementing
`the
`hitherto conventional
`analog indicator
`inetrurnents. which are
`easily legible and generaliy accepted, for
`example, moot newly introdnced navigation
`systems require a screen as graphic output
`unit. While screens are still mostly used in
`the secondary instrumentation field (such as
`in the center coneole). a tendency towards
`the complete substitution of analog indicator
`instruments by a central screen can be
`observed. Herc chiefly display and operation
`concepts
`are
`adopted from information
`technology.
`I
`
`The use of menu structures known from the
`
`be
`should
`computers
`home
`of
`field
`in particular. The free
`referenced here
`programnabfiity of the screen has led to e
`representation of primary drive fibrillation,
`such as the speed of a vehicle, that is a
`marked change
`compared to traditional
`instruments.
`(cg.
`the
`superposition of
`digital numbers
`instead of analog pointer
`irisnnments to display sheen). However. the
`Superposition of digital numbers requires an
`increased abstraction ability of the part of
`the driver. which can keep the driver’s
`attention from other important
`things;
`(the
`converging of a
`digital number
`into a
`graphic value
`representing it
`requires
`a
`special cognitive power of the driver. which
`he
`consequently
`lacks
`for other more
`innitmant
`things).
`In addition.
`there is a
`danger
`that due
`to the superposition of
`unimportant additional hiformation. display
`surface on the screen for the representation
`of
`particularly
`lmmx’tnnt
`information
`is
`replaced. It is therefore denii‘nble to design
`display systems with screens
`such that.
`primary
`{loving
`information
`can
`be
`
`la)
`
`the
`understood clearly and furthermore
`driver can be provided with useful additional
`hlformntion.
`
`From EP 0 771 686 A2 a display system for
`vehicles is known. which contains a screen
`
`and an image generating computer and is
`connected
`to
`information-providing
`elements of the vehicle and which Shows the
`information on the screen with. among other
`things, the aid of at least one pointer and at
`least one scale. Thin display system shows
`respectively relevant
`information
`on a
`screen in a drive phase-dependent manner,
`for example,
`the
`image surface of the
`tachometer is larger at high speeds, etc. (the
`immrtnnce gradation of
`relevant driving
`information is:
`thus
`shown by its visual
`dominance,
`this is achieved with variable
`area
`rams of
`the
`image
`surfaces of
`individual driving information). This display
`system thus uses the variability of the screen
`representation to limit ntformation to the
`driver in a specific driving situation to the
`extent of analog pointer instruments. This
`display syntem according to the prior art,
`however, has the disadvantage that: useful
`additional
`information that could facilitate
`
`the safe and economical operation of the
`vehicle, in thus hidden. Moreover. the driver
`can he unsettled by the constant change of
`the size of the image surfaces for individual
`driving nlformation.
`
`to
`invention it;
`The object of the present
`create a dioplay system that has the good
`readability of analog pointer
`instruments
`and. moreover,
`in an easily understandable
`manner provides additional infonnation that
`facilitates the safe and economical operation
`of the vehicle. This object is; attained with a
`display system according to the main claim.
`
`Because in a display system according to the
`preamble at
`least one additional marking is.
`displayed on the scan to represent additional
`information. on the one hand the standards
`known to drivers can be maintained by the
`imitation of analog pointer instruments and,
`nmrcover.
`the
`pogsibility
`of
`showing
`
`Garmin international, Inc.
`
`Exhibit 1003 - 2
`
`

`

`DE 197 55 470 Al
`
`in screen
`information inherent
`additional
`can be
`used. Due
`to the
`technology
`provision of the additional
`information on
`the scale itself, this is in the driver’s direct
`field of view.
`In contrast
`to separate
`instruments
`for
`additional
`information,
`awareness it; thus considerably facilitated for
`the driver. Moreover, cormectiom: between
`different driving parameters can be clarified
`to the driver in a very clear and intuitively
`comprehensible manner {such as by the
`integration of a marking that displays a
`braking distance or stopping distance in a
`display
`for
`showing the vehicle
`speed.
`While a very high abstraction effort by the
`driver for recognizing SUCh connections is
`demanded
`in
`the
`case
`of
`separate
`monuments, the display cystem according to
`the invention makes it possible to clarify a
`connectirm of this type even to a driver
`without
`technical
`expertise.
`Thus
`a
`particularly safe and economical operation
`of his vehicle is nignificantly facilitated even
`for this; type of driver.
`
`Advantagcous further developments of the
`present invention are given in the dependent
`claims.
`
`An advantageous further development of the
`invention provides that the marking can be
`shown as a mark marking any desired ironic
`point within a range covered by the scale
`and is contrasted to the scale by shape
`and/or color. Accordingly, the representation
`of a display hand, either in the form of a bar,
`a circle sector or a circular ring sector iv also
`possible
`for marking a
`specific
`range.
`Depending on the required use,
`it
`is also
`porslhle
`for
`the marking to follow the
`movement of the pointer. Moreover,
`it
`is
`possible
`for
`the marking.
`retaining
`itn
`position and shape, to be shown in different
`colors andfor thicknesses.
`for instance.
`in.
`
`order to indicate the relevance of npecific
`additional
`information. This diversity of
`imaging possibilities ensures
`that
`in the
`range of the scale any additional minimization
`can be conveyed in a form particularly
`accessible for the driver.
`
`9-)
`
`further
`advantageous
`particularly
`A
`development of the invention provides that
`the
`information-providmg
`elements
`are
`respectively embodied at least as elements
`for measuring speed, for measuring rpm. for
`measuring the inlet manifoki pressure. for
`measuring fuel consumption. for measuring
`the fuel
`tank contents. for measuring,
`the
`power and the temperature of a drive engine
`of the vehicle. for measuring a distance. for
`receiving transmitters
`for
`traffic control
`external to the vehicle etc. This makes it
`possible
`to
`display
`known
`instruments
`composed of pointer and scale in comection
`with the
`embodiments of
`the markings
`described above. This also makes it possible
`to display connections between different
`parameters particularly easily. Moreover, it
`is
`advantageous
`to connect
`the display
`system to an omhoard computer. which in
`tum is
`connected to the
`information—
`
`it
`this makes
`since
`providing elements,
`possible to display calculated values. such as
`neat) values, for examph, with the aid of
`markings.
`
`advantageom embodiment
`further
`A
`resgnzctiveiy
`at
`least
`the
`provides;
`that
`shape or color of
`the
`position,
`extent,
`markings
`represent
`inlormntion on other
`physical values than the information shown
`with the aid of scale and pointer reprenents.
`This makes it possrhle to inform even the
`tcclmicnlly
`inexperienced
`driver of
`the
`connections between different basic driving
`parameters in an inmitively comprehensible
`manner,
`such
`35
`by means
`of
`the
`representation
`of markings
`for
`fuel
`consumption in a display composed of scale
`and poimer for the speed of the vehicle.
`
`embodiment
`A particularly advantageous
`provides that at leaat the representation of
`the scale. the pointer. the. marking or other
`information respectivehr can be changed by
`a control device switched by an operator
`and/or
`according
`to
`the
`information-
`providing elements. Thh‘; ensures that
`in
`certain
`driving
`situations
`in which the
`displays based on scale and pointer are not
`necessary or are necessary only to a limited
`
`Sarmin international, Inc.
`
`Exhibit 1003 - 3
`
`

`

`DE 197 55 470 Al
`
`extent, funhcr displays such 215,er example.
`a map according to a navigation Syxtem or a
`parking aid or the operation of a car radio
`can be shown, it is an advantage hereby {lint
`a base setting of the repreeentaticn of the
`scale,
`the pointer and the marking and/or
`further
`infnmiation
`can be
`shown
`by
`actuating a reset button. and/or
`that
`the
`markings can be faded nut. This ensures that
`in an emergency situation, for instance, an
`unsuitable display on the scrccn triggered by
`the operator or
`the infonnatinn—providing
`elements can be switched innnediatcly back
`to a presetbase setting. The entanglement in
`menu
`hierarchies
`pnssiblc with display
`systems according to the prior art under
`some
`circumstances
`and a
`traffic risk
`associated therewith is thus» prevented.
`
`A particularly advantageous embodiment of
`the
`display
`syetem according
`to
`the
`invention providcx that the connection to the
`arbitration-providing
`elements
`can
`be
`produced via a gtandafd interface and/or a
`display method of the goals. the pomtcr and
`thc marking as well as the output of any
`information-providing
`elements
`can
`be
`freely dcterttiincd by a free programing
`ability of the image generating computer,
`This
`ensures
`that
`the
`display
`system
`according [0 (hr; invgnfion can be; used far a
`plurality of different vehicle types, without a
`replacement of hardware being necensary,
`On the one hand, this has a cost~1cducing
`effect;
`on
`the
`ether
`hand,
`vehicle
`manufacturers who offer a wide range of
`different models
`depending
`on
`the
`equipment variant and destination country
`can freely program the image generating
`computer {no high costs ore incurred for
`purchasing or stocking different models).
`
`embodiments
`advantageous
`Further
`given in the miller depengfgnt Chafing.
`
`are
`
`the
`Several exemplary embodiments of
`present invention are explained below based
`on figures,
`~
`They show:
`
`a display system according to the
`1
`Fig.
`invention installed in a vehicle,
`
`a display according to the invention
`Fig. 2
`of the current speed of the vehicle and cf
`additional information
`
`a diSpiay acccrding 10 the invention
`Fig. 3
`019918 currcnt SW6d Of a drive engine 0f the
`vehicle and 01“ additional information,
`
`Fig. 4 a display according ‘0 the invention
`if 1116 current fuel consumption of a drive
`engine of the vehicle as well as additional
`information,
`
`Figs. 53,. 5b and SC 3 display according to
`the
`invention
`€01‘
`graphic
`illustration 0f
`distanccs.
`
`Fig. 1 $110955 21 dinplny 3335131“ 1 according ‘0
`the invention With 3 screen 37 and an mags
`generating cnmputcr 33, which is connected
`to
`information-prnviding elements
`3}
`as
`well 35 an cn~bnard computer 3?: T116“ if» a
`further connection between the infarmation-
`{350“de 313111911”
`31
`and the OH-boal'd
`computer 32, Depending on the cmbndiment
`0f the dismay system 1, ii 13 2‘30 possible {0
`cormect
`the infonnaticn-provicfing systems
`3] only via. the (in—board computer 32 ti) the
`image generating computer 33“ T115 Screen
`37 is attached in the direct field at vision of
`a driver cperating the Steering wheel 36-
`Naturally» it
`is also possible to project the
`ird'nrmation
`generated
`on
`the
`image
`generating computer 33 directly on the
`windscreen :30
`
`The representation cf the screen '37 covered
`in Fig.
`1 comprises a round instrument 34
`’
`_
`‘
`compcscd of a scab and pomter which 15
`dESEEWd
`based
`0“
`analog
`P0511151?
`instruments and ill llIS basic {:0le cannot be
`distinguished
`outwardly
`from purely
`mcchanical devices. However,in the present
`0356
`“round instrument” by no means
`indicates a limitation to a purely circular
`shape, any rounded nhapcs and also ellipsoid
`designs are 31in pmsiblc. Moreover, on the
`screen 37 21 bar instrument 35 is ShDWR
`
`Garmln International, Inc.
`
`Exhibit 1003 - 4
`
`

`

`DE 197 55 470 A1
`
`which likewise is composed of a scale and
`pointer. By means of a control device, not
`Shown in further detaii here, switched by an
`operator
`andfor
`according
`to
`the
`infonnation-providing
`instruments
`31,
`respectively at leaet the image of the Steele,
`of
`the pointer, of the marking or other
`information can be changed on the screen
`37, which is designed, for example, as a
`highn‘esoiution LCD display and renders
`possible multicolored images. Thus,
`for
`examnie, by superposition and masking of
`the shown round instrument 34 and of the
`bar instrument 35, further mfoi'mation can
`be shown, such as a scaie for showing a
`stylized image of a vehicle 23. Forthei’more,
`traffic control mfommtion can be displayed,
`which,
`for
`oxampie,
`is
`supplied
`by
`information-providing
`elements
`31
`embodied an elements for the reception of
`transmitters:
`for traffic controi outside the
`vehicie. Of course,
`information of further
`informnnon-providing eiements 31, such as
`camera devices or a car radio, can 21150 be
`dinpiayed.
`
`E Shows. a reset button 38.
`Moreover, Fig.
`By pressing this reset button 3 base setting
`of the image on the screen 37 can be
`generated. This is advantageoos in patticnlar
`in
`situations
`in which,
`for
`instance by
`manual influence of the information Shown
`
`on. the screen 37, an original image is to he
`quickiy
`reestablished,
`for
`example,
`in
`dangerous situations. An entanglement
`in
`hierarchies, such an;
`is ponsrbie
`in other
`diepiay systems that are strongiy based on
`user guidance in computers,
`is thus ruled
`Out.
`It
`is moreover provided that
`the
`connection
`to
`the
`infonnatiomproviding
`elements can he established Via a standard
`
`interface. This can take piece directly by
`connection
`to
`the
`image
`generating
`computer 33 as; well as
`indirectly,
`for
`example, by connection to the tin-board
`computer 32. This means that
`the image
`generating computer 33 as: well as the screen
`37 can he. used independently of a Specific
`vehicle
`type
`Forthemiore,
`the
`image
`generating computer 33 can be embodied
`such that the representatitni on the screen,
`
`such as of pointern, markingn and scales, can
`be programmed compietely freely. This
`ensures that a desired imaging method can
`be set for a plurality of vehicle types as weli
`as for vehicles of the same type that are
`intended for a different destination country,
`This requirement resuits, for exampie, from
`the fact
`that
`in the Federal Repuhiic of
`Gennany the Speed dispiay is usuaily in
`kilometers per hour,
`in the US., however,
`the speed is displayed in miiee per hour.
`
`information~providing
`the
`principle,
`in
`elementsfii can be embodied as any desired
`elements,
`for example, as elements
`for
`measuring speed, for rpm measurement, for
`measuring fuei consumption, for measuring
`the fuei
`tank contents, for measuring the
`power and the temperature of a drive engine
`of the vehicle, for measuring a distance, for
`the
`reception of transmitters outxide the
`vehicle for
`traffic contioi,
`for odometer
`measurement, as a database with traffic
`
`control information, as a database for giving
`the achievable maximum power depending
`on the rotational speed and the load situation
`of the drive engine of the vehicle, sensors
`for determining external
`influences, car
`radio, camera device or
`installation for
`speed reguintion.
`
`Fig. 2 ghows a display according to the
`invention for the current speed of the vehicle
`as well as
`additional
`infonnation. The
`
`pointer for speed measurement 2 shows a
`current speed 39 of the vehicle on the ecaie
`for speed measurement 29. The speed in
`given in kilometers per hour. Furthermore,
`an odometer 6 is provided. which counts in
`kilometer units. This can be
`embodied
`mechanically and be readable through a
`corresponding neonpnrent section of
`the
`screen 37, however,
`it
`is advantageous to
`dispiay the odometer o as a simulation of a
`mechanical odometer with the aid of the
`
`image generating computer 33 according to
`a
`corresponding
`intonnation—providing
`element (odometer element).
`
`a mark for
`as
`A marking embodied
`indicating an average speed 3 indicates the
`
`Sarmin International, Inc.
`
`Exhibit 1003 - 5
`
`

`

`DE l97 55 470 Al
`
`average speed of the vehicle calculated by
`an 0n~b0ard computer
`for
`a previously
`selected reference period or a reference
`distance. This marking. which is embodied
`as; a merit marking any acale point in a range
`covered by the Scale, stands out from the
`scale
`by
`its
`shape
`and
`additionally
`preferably by its color.
`
`currently
`a
`indicating
`for
`A mark.
`pennissihle maximum speed 5 shows
`a
`permissble maximum speed for the road
`section where the car is“ currently located.
`This maximum speed can either he set
`manually or according to an element for
`navigation and a database with ual‘fic
`control mfortnation or by an element for
`receiving transmitters outside the vehicle for
`traffic control. Nattu'ally.
`it
`is also possible
`to display a desired speed that can be set by
`the operator or a desired speed determined
`by a system for speed control, such as
`according to consumption targets, with a
`corresponding mark on the scale for speed
`measurement
`29. This
`is
`regardless of
`whether
`the
`syntem for weed control.
`contains the desired speed or the driver
`intervenes directiy in the speed control.
`
`In Fig, 2 a marl: embodied in a triangular
`manner
`for
`indicating a desired speed 4
`detennined by the system for speed control,
`in which a consumption of 7.5 lper lOQ km
`is achieved, is shown. A consumption limit
`of this type. such as 7.5 lfor lOO ion, can be
`set by the operator before the start of the
`trip.
`It
`is used for
`simply clarifying the
`connection between the fuel consumption
`and the CUITCIlt speed of the vehicle. it is;
`useful to couple these two values in a clearly
`visible and easily comprehensible manner
`on a common instrument, even if the two
`
`units. By
`dnta have different physical
`orientation to a mark of this type, the (hitter
`can adjust his way driving such that he does
`not exceed a consumption mark set by him.
`Furthermore. in the running operation of the
`vehicle without having to look at a separate
`coneumption display and thus
`tithing his;
`attention from other things, he can check
`whether he is currently above a consumption
`
`target set by him or is below it. Without
`being aware of it, the driver is hereby taught
`to maintain an economic driving style. It is
`likewise
`pousible
`to Show a moveablc
`display hand (not
`shown here),
`that
`is
`embodied as a consumption scale section,
`below the pointer for Speed measurement
`(the display band hereby changes its; position
`according to the pointer movement).
`
`Furthermore, Fig. 2 showy; a display band
`embodied an a
`circular
`ring sector
`for
`identifying a distance 7 that
`indicates the
`length, of the dintanee from a vehicle ahead.
`The display band 7 indicating;I the distance
`extends from the left start of the scale to a
`
`first end point 8. The distance from the
`vehicle ahead is hereby supplied by an
`information-providing
`clement
`(cg.
`an
`element
`for
`receiving
`traffic
`control
`transmitters
`outside
`the
`vehicle or an
`
`A
`for measuring a distance).
`element
`display bend embodied as a circular ring
`sector for indicating a braking distance or a
`stopping distance runs between the left end
`of the scale and a second end point 10. The
`braking diatance or Stopping distance
`is
`detennined by the on~boztrd computer
`in
`interaction
`with
`information-providing
`elements; tog, an element for measuring a
`distance or sensors for determining external
`influences. clemente of a system for traction
`control, anti—lock limiting system, system for
`temperature measuring etc. airettdy present
`in the vehicle can be used hereby}. if the
`distance determined.
`for example. by the
`element
`for measuring
`a
`distance
`is
`exceeded
`by
`the
`braking distance or
`stopping distance determined. in the present
`case the determined braking distance or
`stopping distance is shown such that a part
`showing how much in exceeded (between
`the first end point 8 and the second end
`point
`it)
`in a marking representing the
`braking distance or stopping distance)
`is
`shown in a different color and/or thickness
`than the other part (in this case the display
`band for indicating a distance 7). The above—
`mentioned distance
`information,
`ie.
`the
`distance or, the braking distance or stopping
`distance, is measured in a different physical
`
`Garmin international, Inc.
`
`Exhibit 1003 - 6
`
`

`

`DE 197 55 470 Al
`
`unit from the spoeds entered on the scale. To
`achieve a safe driving style that helps to
`maintain
`crucial
`dintances,
`it
`is
`not
`absolutely neccnsary to quantify the (fistance
`or
`the braking distance or
`the stopping
`distance exactly. The. statement of a physical
`unit (such as meters, ah the legend of the
`additional
`information 11
`in the present
`example shows) is not absolutely neceasary,
`Instead. the driver should be encouraged to
`drive
`so that
`the
`braking distance or
`stopping distance
`does
`not exceed the
`distance from the vehicle ahead, which is
`easily
`possible
`by
`display
`bands
`distinguished in different colors. In cases in
`which no distance is shown, the driver can
`be warned in that the marking indicating the
`braking
`distance
`or
`stopping
`distance
`changes color, thickness or also shape when
`a predetennined critical value is exceeded
`(also while- maintaining its position).
`
`A distance warning without marking for the
`braking distance or stopping distance can
`also be carded out in that the marking 5 for
`the maximum speed is tracked on that speed
`value at which the rcsolting braking distance
`or stopping distance: would remain mlow thc
`critical distance.
`
`In order to avoid confusing the driver by too
`many markings.
`it
`is posnible to superpose
`or mask certain markings by means; of a
`control devicc (not shown}. The situation
`presented above for a round instrument can
`also be
`applied
`analogously to a bar
`histimiimt or other types of instruments. In
`this case the shapes of the markings are to
`be adapted accordingly, out
`thc function
`ramming the same. With the markings; shown
`above in the. shape of marks or display bars,
`the
`coloring
`can
`also
`help
`quicker
`classification of information by the driver.
`Thus,
`for examplct warnings that require
`immediate
`action or
`represent a critical
`technical or legislative iimit. can appear in
`the color red (egg 2: maximum speed or the
`part of the braking distance or stopping
`cligtancc that exceeds the distance to the
`
`require
`that
`Indications
`ahead).
`vehicle
`special attention but do not Show a critical
`
`is exceeded can appear in the color
`limit
`yellow or orange (cg. braking distance or
`cropping dintance when a critical distance is
`not exceeded).
`lndicationn that have the
`nature of a recommendation of an action can
`
`appear in the color green. information that
`has the nature of optional neutral additional
`information appears in blue (cg. average
`speed).
`
`The shape of the marks in also designed so
`the displayed additionai information can be
`easily
`distinguished.
`Such
`additional
`information that has a quasi—static nature,
`appears for example as an additional partial
`line on the scale. A partial line of this type
`stands out only in color or thickness from
`the rest of the sonic leg” maximum or
`average speed). Marks that designate, for
`example,
`desired
`values
`for
`automatic
`control systems, however;
`(such as with
`round inatruments) are shown as a triangle
`pointing radially inwards (desired speed of
`the nystcm for speed regulation 5).
`
`Fig. 3 shows a scale for rpm indicator :2
`which together with a pointer for the rpm
`indicator 13 displays a current rpm 40. The
`mark for indicating a minimum dcsircd rpm
`15 extending from the center point of the
`scale to the edge of the scale shows a
`desired rpm at which a currently indicated
`power of the drive engine is available. A
`recommendation can bc herewith be made
`
`for setting a longer transmission ratio of a
`transmission connected to the drive engine,
`for histancc.
`in ordcr to have fun}. The
`dinplay
`of
`this; mhiimnni
`desired rpm,
`however, can also he carried out
`in a
`different way, for example, by means- of a
`display hand that
`is embodied as a curved
`arrow‘shapcd auxiliary pointcr 14.
`
`The display system l contains information»
`providing clementa that arc embodied as a
`database
`for
`showing
`the
`aclfievahle
`maximum power depending on the rpm and
`the load situation of the drive engine of the
`vehicle. Moreover. the current rpm and the
`corrent
`induction pipe, pressure are known
`from the elements for rpm Ineatiurcmcnt as
`
`Garmin international, Inc.
`
`Exhibit 1003 - 7
`
`

`

`DE 197 55 470 Al
`
`inlet manifold
`the
`as measm‘ing
`well
`pressure. With the aid of these current
`values as well as the engine map given in
`the database,
`for example,
`the on—board
`compnter or also the
`image generating
`computer
`can determine
`the
`currently
`provided power. Naturally, it is also possflfle
`to extrapolate the load situation instead of
`by direct measurement of the inlet manifold
`pressure,
`for histaueet by means; of the
`throtth valve position. Moreover, it
`is also
`possible to directly determine the current
`power
`by means of
`an element
`for
`measuring the power. Based on the known
`engine map the minimum desired rpm is
`now determined at which in the case of a
`
`fully opened throttle valve the currently
`provided power
`is
`achieved. Now the
`difference between the minimum desired
`
`1pm and the current rpm is determined, for
`example,
`by
`the
`onwboard
`computer.
`Moreover,
`the err—board computer knows
`which tranmnis‘xion ratio (that is, lower 1pm
`level with same current speed of the vehicle)
`of a transmission connected to the drive
`
`can be
`(this
`set.
`currently
`is
`engine
`determined either from the ratio of current
`
`rpm to current speed or also by suitable
`sensors. Such as on the shift lever). Now the
`computer can determine with the aid of the
`engine map stored in the database which
`rpm would result
`if a longer transmission
`ratio were set. If this rpm is above the
`minimum desired rpm,
`this is displayed by
`the display of a corresponding marking. for
`example a display band. which is embodied
`as a curved, arrowAshaped auxiliary pointer
`14.
`
`This shift recommendation for achieving a
`minimum rpm that
`in
`suffieient
`for an
`estimated desired power gives the driver a
`general
`visual
`report
`on whether
`his
`selection of the transmission is useful for the
`
`current driving maneuver ----- with the desired
`acceleration as indicator — or l’mthermore
`
`information on which
`gives: him gradual
`sensible.
`This
`shift
`gear
`is more
`recommendation for achieving a minimum
`defined rpm which is sufficient for achieving
`
`an estimated denired power, contributes to a
`lower rpm driving method.
`
`In
`
`the
`
`above-mentioned manner
`
`further
`
`for
`desired rpms can also be identified,
`example,
`those that
`identify an estimated
`power
`for
`achieving
`a
`predetermined
`acceleration state.
`
`pedal
`(gas
`setting
`throttle WINE}
`The
`position) is hereby determined, for example,
`by the computer and interpreted as a power
`demand by the driver from the drive engine
`in order to achieve a desired acceleration
`state. Then with the aid of the informathn—
`providing element. which is embodied as a
`database for giving the achievable maximum
`power depending on the rpm and the load
`conditirm of the drive engine of the vehicle?
`a minimum desired rpm is determined from
`the power
`full
`load curve with which a
`desired power corresponding to this poWer
`demand is achieved. An “rpm difference I"
`is thereupon formed from the current rpm
`minus
`this determined minimum desired
`
`err—board
`the
`example.
`for
`rpm. Since,
`computer also knows at which transmission
`ratio a transmirsuion linked to the drive
`engine
`is
`currently driven (such as by
`forming a ratio from current rpm and current
`speed or by sensors on the gear stick) the
`following
`case
`differentiation
`is
`now
`possible:
`
`is positive (the degired
`The 2pm ddferenee l
`rpm is below the current rpm): if the highent
`missihle
`transmission
`ratio
`is
`set,
`no
`marking
`is
`shown on the
`tachometer.
`Otherwise the computer establishes which
`rpm would result
`if a higher gear {for
`example,
`the next highest) were set. The
`difference from this calculated rpm and the
`entrant rpm is the “rpm difference 2.”
`
`The rpm difference is negative {the desired ‘
`rpm is above the current rpm): if the lowest
`posssible
`transmission
`ratio
`is
`set,
`no
`marking is
`shown on the
`tachometer.
`Otherwise.
`the computer establishes which
`rpm would result
`if a lower gear {for
`example,
`the next
`lowest} were set. The
`
`Garmin international, Inc.
`
`Exhibit 1003 ~ 8
`
`

`

`DE 197 55 470 Al
`
`difference from this calculated rpm and the
`current rpm in turn is referred to as “rpm
`difference 2.”
`
`If the rpm difference 2 is greater in teams of
`amount than the rpm difference 1, a marking
`appears in the tachometen which indicates
`the minimum desired rpm.
`If
`the
`rpm
`difference 1 was positive, a lower rpm is
`marked ireconnnendation to upshift). if it
`was negative 21 higher
`rpm is marked
`(recommendation to downshift).
`
`Ftnthermore, a display band embodied as a
`circular ring sector for identifying a critical
`rpm 16 is used in Fig. 3 to identify a critical
`1pm range. It is possible to vary the size of
`this display band. which extends from a
`limit
`rpm 43
`to the
`tight
`scale
`end,
`depending on other parameters, such as, for
`example;
`the
`temperature of
`the drive
`engine. This makes it possible in a simple
`manner to achieve a longer service life of
`the engine. The driver does not hereby need
`to make any abstraction effort {reading two
`separate insmnnents). The display band for
`d‘nplaying the critical rpm. of course. can
`also have other shapes, for example, that of
`a circle segment.
`
`in addition to the types of marking described
`above. netcrally others are possible,
`for
`example,
`shapes known from the above
`figures. With the display of markings for
`hidicatitig desired {pins it
`is advantageous.
`for example. that
`the superposition of the
`markings does not take place until an rpm
`difference between the current rpm of the
`drive engine and the desired rpm is at least
`so large as an rpm difference that would
`result
`from the selection of a different
`transmission
`ratio
`of
`a
`transmission
`
`connected to the drive enginegUnnecessary
`additional
`information is hereby kept away
`from the driver.
`
`In Fig, 4 a current fuel consumption all of
`the drive engine ie displayed with the aid of
`a scale for conemnption display 17 and the
`pointer for consumption display l8. A mark
`preferably displayed in blue indicates an
`
`average fuel consumption 19 dctcnnincd, for
`instance. by an on-board computer. A
`marking for
`indicating
`a
`possible
`fuel
`consumption 20 shows
`a possible
`fuel
`consumption that
`could be achieved by
`selecting a different trancmission ratio of a
`transmission connected to the drive engine.
`
`the
`displaying
`for
`band
`digplay
`The
`a
`achievable
`remaining distance
`shows
`remaining distance that can be achieved by
`the
`vehicle without
`refilling with fuel.
`wherein the display band increases from the
`right scale end and with increasing extent
`has an increased warning character. Gncc
`the display band has stretched over
`the
`entire
`scale range of the scale of the
`connumption display l7 tie. from the right
`to the left end of the scale), the remaining
`distance
`is equal
`to zero. The possible
`remaining
`dietance
`is
`determined.
`for
`example, by an cit—board computer 32
`according to meaSured values of the ele