WO1999045399A1 - Compte-tours pour vehicule a moteur - Google Patents

Compte-tours pour vehicule a moteur Download PDF

Info

Publication number
WO1999045399A1
WO1999045399A1 PCT/GB1999/000603 GB9900603W WO9945399A1 WO 1999045399 A1 WO1999045399 A1 WO 1999045399A1 GB 9900603 W GB9900603 W GB 9900603W WO 9945399 A1 WO9945399 A1 WO 9945399A1
Authority
WO
WIPO (PCT)
Prior art keywords
engine
tachometer
rpm
illuminating elements
engine speed
Prior art date
Application number
PCT/GB1999/000603
Other languages
English (en)
Inventor
Nicholas Philip Webb
Original Assignee
Rover Group Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rover Group Limited filed Critical Rover Group Limited
Priority to EP99937989A priority Critical patent/EP1064558A1/fr
Publication of WO1999045399A1 publication Critical patent/WO1999045399A1/fr

Links

Classifications

    • 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
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G01D13/02—Scales; Dials
    • G01D13/04—Construction
    • G01D13/10—Construction with adjustable scales; with auxiliary scales, e.g. vernier
    • 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
    • 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
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • G01P1/103—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the value of the measured signal with one or several reference values

Definitions

  • vehicle tachometer and more particularly, but not exclusively, a motor
  • vehicle tachometer used to provide the driver of such a vehicle with a
  • a modern motor vehicle will include an vehicle or engine
  • warning illustrates an engine speed, in terms of revolutions per minute
  • operating conditions may change from cold start up to sustained high speed
  • the red line is generally not a true indicator of the limit of
  • engine/gearbox combination and/or operation can be monitored in order to
  • illuminating elements being operated to indicate upon said scale of the
  • the interrogation means may monitor revolutions per minute (rpm)
  • coolant condition e.g. temperature/flow and/or lubrication conditions
  • the interrogation means may be incorporated within an existing engine management system of the motor vehicle. Alternatively, and possibly,
  • the interrogation means may simply determine the engine and
  • the interrogation means may predict future engine operation
  • interrogation means in order to appropriately operate the illuminating
  • a respective red line warning may be provided by one
  • green Une illuminating element may also indicate the desirability to change
  • a single tachometer including a plurality of
  • illuminating elements may be provided for a range of engine types and
  • gearbox combinations by providing that, dependent upon engine and
  • gearbox type combination identification only determined by the interrogation means, one illuminating element is actuated to define that
  • the illuminating elements may be light-emitting diodes (LED).
  • a red line warning is provided upon the
  • this red line limit was a
  • the vehicle may have exhaust emissions which would not be acceptable in
  • vehicles include vehicle management systems. These systems interrogate
  • operating conditions can be determined from the sensors used to determine
  • This information can be utilised in order to adapt the
  • these management systems also interrogate or know, as requested, identities for functional vehicle components such as the engine and gearbox
  • gearbox is clearly normally fixed for a vehicle model but nevertheless is
  • red hne warning within the tachometer scale This red line may vary
  • an independently operable illumination element such as a light
  • LED emitting diode
  • engine/gearbox combination types The engine operating conditions which typically may be monitored to
  • management system through the interrogation means can determine the
  • the interrogation means incorporated in the management system will be described in detail.
  • the interrogation means in order to operate or trigger the illuminating
  • gearbox combination will generally utilise either an appropriate algorithm
  • the interrogation means may simply identify a
  • condition profile may be adapted over the life of the engine in order to account for variations in the engine performance during that lifetime.
  • the operating condition profile could be stored in a read-only
  • ROM read only memory
  • present invention is that a single tachometer with several illuminating
  • illuminating element may ever be operated but the necessity of providing
  • This illuminating element may then be
  • the illuminating element will be reactivated and so triggered to
  • an illuminating element will remain lit during normal driving
  • a tachometer is used to display the engine speed of the vehicle in
  • Ignition position 0 (engine off) - the tachometer will point to 0 RPM.
  • Ignition position 1 (auxiliary equipment powered but engine still off) -
  • the tachometer pointer will respond at a rate allowing it to remain
  • the tachometer pointer response rate will be hmited to a tacho max
  • red hne illumination for example, there are for
  • threshold for the tachometer is set to 0 RPM then at least the first red line
  • illuminating element will be illuminated for the duration of ignition i.e.
  • the red line may be fixed for a particular
  • the interrogation means may also be arranged to predict future engine
  • vehicle management system through the interrogation means may also be able to predict the ideal engine speed or rpm level for the
  • range may incorporate a plurality of red illuminating elements to indicate
  • the preferred illuminating element is a hght-emitting diode (LED) due
  • hne or ideal operation rpm level may be illuminated for considerable periods
  • hne lamp check timer 1 and a red hne illumination qualification module 2.
  • the timer 1 checks the illuminating elements 3, 4, 5 i.e. LEDs are working
  • timer 1 operation generally only occurs at engine ignition
  • tachometer 6 has a red line provided by a respective illuminating element 3,
  • the module 2 may also determine which element 3,
  • each element 3, 4, 5 can be achieved. It will be appreciated that typically
  • threshold for operation i.e. Tl
  • hysteresis rpm a hysteresis rpm value
  • the engine speed threshold could be set at 0
  • tachometer 6 could be used for different engine and gearbox combinations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

La présente invention porte sur un compte-tours (6) dans lequel sont incorporés plusieurs éléments lumineux (3,4,5) dans la plage de régime du moteur (tours par minute ou tr/min). Ces éléments lumineux (3,4,5) sont disposés de manière à définir des avertissements sous forme de différentes lignes rouges correspondant au régime acceptable pour le moteur (tr/min) en fonction des conditions de fonctionnement surveillées ou simplement du type de combinaison moteur/boîte de vitesse. La plage du régime moteur acceptable (tr/min) peut être variée en fonction de la charge du moteur, ou bien un compte-tours unique peut être utilisé pour une gamme de moteur étendue, la limite de la ligne rouge pour chaque moteur respectif étant déterminée par un des éléments lumineux. Par conséquent, un compte-tours unique ou générique qui comprend les éléments lumineux mais qui est adapté par le système d'interrogation est utilisé pour chaque combinaison moteur/boîte de vitesse distincte plutôt que des compte-tours spécifiques destinés à chaque combinaison.
PCT/GB1999/000603 1998-03-05 1999-03-01 Compte-tours pour vehicule a moteur WO1999045399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99937989A EP1064558A1 (fr) 1998-03-05 1999-03-01 Compte-tours pour vehicule a moteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9804660.0A GB9804660D0 (en) 1998-03-05 1998-03-05 A motor vehicle tachometer
GB9804660.0 1998-03-05

Publications (1)

Publication Number Publication Date
WO1999045399A1 true WO1999045399A1 (fr) 1999-09-10

Family

ID=10828016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/000603 WO1999045399A1 (fr) 1998-03-05 1999-03-01 Compte-tours pour vehicule a moteur

Country Status (3)

Country Link
EP (1) EP1064558A1 (fr)
GB (1) GB9804660D0 (fr)
WO (1) WO1999045399A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014818A1 (de) * 2000-03-27 2001-10-18 Daimler Chrysler Ag Vorrichtung zur Bestimmung und Anzeige eines optimalen Drehzahlbereichs
EP1536209A1 (fr) * 2003-11-28 2005-06-01 Yamaha Marine Kabushiki Kaisha Dispositif d'indication de l'état de fonctionnement d'un moteur d'un vehicle
US7571032B2 (en) 2004-01-06 2009-08-04 Yamaha Hatsudoki Kabushiki Kaisha Display device for watercraft

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441359A (en) * 1981-03-04 1984-04-10 Nissan Motor Company, Limited Method and apparatus for inspecting vehicles
JPS60107109A (ja) * 1983-11-15 1985-06-12 Toshiba Corp 警報表示装置
EP0447580A1 (fr) * 1988-11-05 1991-09-25 Karl-Bernhard Nüchter Dispositif de mesure
DE4444702A1 (de) * 1994-12-15 1996-06-20 Vdo Schindling Anzeigeeinrichtung
DE29703904U1 (de) * 1997-02-24 1997-06-05 Tegethoff Marius Variable Skalenmarkierung eines analogen Anzeigeinstrumentes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4441359A (en) * 1981-03-04 1984-04-10 Nissan Motor Company, Limited Method and apparatus for inspecting vehicles
JPS60107109A (ja) * 1983-11-15 1985-06-12 Toshiba Corp 警報表示装置
EP0447580A1 (fr) * 1988-11-05 1991-09-25 Karl-Bernhard Nüchter Dispositif de mesure
DE4444702A1 (de) * 1994-12-15 1996-06-20 Vdo Schindling Anzeigeeinrichtung
DE29703904U1 (de) * 1997-02-24 1997-06-05 Tegethoff Marius Variable Skalenmarkierung eines analogen Anzeigeinstrumentes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 257 (P - 396) 15 October 1985 (1985-10-15) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10014818A1 (de) * 2000-03-27 2001-10-18 Daimler Chrysler Ag Vorrichtung zur Bestimmung und Anzeige eines optimalen Drehzahlbereichs
DE10014818B4 (de) * 2000-03-27 2004-04-15 Daimlerchrysler Ag Vorrichtung zur Bestimmung und Anzeige eines optimalen Drehzahlbereichs
EP1536209A1 (fr) * 2003-11-28 2005-06-01 Yamaha Marine Kabushiki Kaisha Dispositif d'indication de l'état de fonctionnement d'un moteur d'un vehicle
US7330133B2 (en) 2003-11-28 2008-02-12 Yamaha Marine Kabushiki Kaisha Engine condition indicating device for boat
US7571032B2 (en) 2004-01-06 2009-08-04 Yamaha Hatsudoki Kabushiki Kaisha Display device for watercraft

Also Published As

Publication number Publication date
GB9804660D0 (en) 1998-04-29
EP1064558A1 (fr) 2001-01-03

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