EP0900155A1 - Systeme pour produire un signal de freinage dans un vehicule a moteur - Google Patents

Systeme pour produire un signal de freinage dans un vehicule a moteur

Info

Publication number
EP0900155A1
EP0900155A1 EP98910600A EP98910600A EP0900155A1 EP 0900155 A1 EP0900155 A1 EP 0900155A1 EP 98910600 A EP98910600 A EP 98910600A EP 98910600 A EP98910600 A EP 98910600A EP 0900155 A1 EP0900155 A1 EP 0900155A1
Authority
EP
European Patent Office
Prior art keywords
data
control unit
motor
engine
signal
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
EP98910600A
Other languages
German (de)
English (en)
Inventor
Michael BÄUERLE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0900155A1 publication Critical patent/EP0900155A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
    • B60Q1/44—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating braking action or preparation for braking, e.g. by detection of the foot approaching the brake pedal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices

Definitions

  • the invention relates to a system for generating a signal representing a delay operation of a 'motor vehicle having an internal combustion engine, with the features of the preamble of claim 1.
  • the brake lights are generally controlled directly as a function of a brake pedal actuation.
  • DE-OS 20 40 337 points out that a reduction in the vehicle speed cannot be caused solely by the actuation of the foot brake, but also by other circumstances, for example by engine braking during gearshift downshifts or by the gas being removed alone.
  • the vehicle deceleration is determined by a special acceleration sensor; The brake lights are then activated depending on the delay.
  • Such a separate sensor is relatively complex, possibly prone to failure and expensive.
  • the DE utility model GM 91 08 827 shows a signal output device for controlling the brake light in a motor vehicle, in which the position of the accelerator pedal operated by the driver of the vehicle, the engine vacuum and / or the fuel throughput supplied to the engine are evaluated in order to determine a sudden decrease in vehicle acceleration becomes.
  • the disadvantage here is that all of these quantities cannot provide a reliable measure of the vehicle deceleration.
  • the object of the present invention is to generate a signal in a simple manner, which provides an accurate measure of the vehicle deceleration outside of braking operations.
  • the invention is based on a system for generating a signal that represents a deceleration process of a motor vehicle with an engine.
  • the signal is provided in particular for controlling the brake lights of the motor vehicle.
  • a tax device available that controls or regulates the engine depending on the data available in the control unit.
  • the signal is generated depending on the data available in the control unit.
  • the essence of the invention is that the data present in the control unit, which are used to generate the signal, represent at least the drag torque caused by the engine, the engine drag torque.
  • the data present in the control unit which are used to generate the signal, represent at least the drag torque caused by the engine, the engine drag torque.
  • a relatively precise measure of a vehicle deceleration is obtained from the data already present in the engine control unit, at least in newer or future engine control units. If, depending on the signal generated according to the invention, the brake lights are activated, the following traffic is also made aware of delays that are not directly attributable to a brake application. The brake lights can of course also be controlled depending on the brake application.
  • the engine is designed as internal combustion engines or an electric motor, in particular in the case of an electric motor it is provided that the batteries of the engine are charged in towing mode and in the case of an internal combustion engine that the control device at least controls the fuel supply of the Internal combustion engine controls or regulates.
  • the signal does not have to come directly from the engine control unit.
  • the signal can also be transmitted, quasi “indirectly”, via a data transmission system (eg CA bus system).
  • the drag torque caused by the engine, the wheel drag torque can also be determined in the control unit.
  • the data present in the control device which represent the engine drag torque and / or the wheel drag torque, are compared with at least one predefinable threshold value in order to generate the signal.
  • the brake lights should therefore only be activated when the deceleration is sufficiently high.
  • this threshold value is predefined in the case of an internal combustion engine as a function of the outside and / or intake air temperature.
  • the data representing the outside and / or intake air temperature is generally also available in the control unit.
  • the Ver- Deceleration threshold from which the brake lights are activated can thus be reduced in winter if there is a risk of slippery roads, which increases driving safety.
  • the data present in the control device represent at least the vehicle longitudinal speed or the vehicle longitudinal acceleration.
  • Such data is generally also available in more modern engine control units, for example for vehicle speed control or vehicle speed limitation.
  • the data representing the longitudinal vehicle speed are differentiated for generating the signal.
  • the differentiated vehicle longitudinal speed data or the vehicle longitudinal acceleration data can be compared in the control unit to generate the signal with at least one predefinable threshold value.
  • This threshold value can also be predefined here as a function of the outside and / or intake air temperature, it also being provided here in particular that data which represent the outside and / or intake air temperature are also present in the control unit.
  • FIGS. 1 and 2 show two embodiments of the invention using block diagrams.
  • Figures 1 and 2 show the reference numeral 10 sensors, which supply various data to the engine control unit 20 in a known manner via a data line I.
  • the engine control unit 20 determines control signals for the actuators of the internal combustion engine 30, which are fed to the internal combustion engine via the connecting line O.
  • the determination of the data fed into the data lines I and 0 is not the subject of this invention and is therefore not described further for this reason.
  • the reference symbols 40 denote the brake lights of the vehicle, which can be controlled by the engine control unit 20 by means of the signal S.
  • the engine control unit 20 in block 21 is formed in a known manner (see, for example, DE-OS 42 39 711 mentioned at the outset) from the input data the engine drag torque M s mo _.
  • mot w i r d in block 22 depends on the currently set total torque translation it ig (substantially from the current gear ratio) in a known manner the wheel drag torque M s ra (_ calculated.
  • This wheel drag torque M s racj is compared in block 23 with the threshold value SWl, the threshold value SWl, as already mentioned, either being predefined or dependent on the outside and / or intake air temperature. Data that represent the outside and / or intake air temperature are either present in the engine control unit or are supplied to it via the data line I.
  • the threshold SWl is reduced when there is a risk of slippery roads in winter at low temperatures, which increases driving safety.
  • the brake lights 40 are activated by the signal S.
  • the longitudinal vehicle speed V is formed in a known manner from the input data or is fed directly to the engine control unit.
  • the longitudinal vehicle speed V ] _ is differentiated in block 25 to the longitudinal vehicle acceleration a ⁇ .
  • the longitudinal vehicle acceleration a ⁇ is compared in block 26 with the threshold value SW2, the threshold value SW2, like the threshold value SW1, either being predefined or dependent on the outside and / or intake air temperature. Data that represent the outside and / or intake air temperature are either present in the engine control unit or are supplied to it via the data line I.
  • the threshold SW2 is also reduced when there is a risk of slippery roads in winter at low temperatures, which increases driving safety. If the vehicle longitudinal acceleration a ⁇ exceeds the threshold SW2, the brake lights 40 are activated by the signal S.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Regulating Braking Force (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

L'invention concerne un système pour produire un signal représentant une décélération d'un véhicule à moteur. Ce signal est prévu en particulier pour commander des feux de freinage du véhicule à moteur. Un dispositif de commande est en outre prévu pour commander ou réguler le moteur en fonction des données présentes dans ledit dispositif de commande. L'invention est caractérisée en ce que les données présentes dans ledit dispositif de commande et utilisées pour produire ledit signal, représentent au moins le couple de freinage provoqué par le moteur. Le système de l'invention permet d'obtenir facilement une mesure relativement précise d'une décélération du véhicule, à partir des données déjà présentes dans le dispositif de commande du moteur, au moins dans les dispositifs de commande de moteur récents ou futurs. Lorsque les feux de stop sont commandés en fonction du signal produit selon l'invention, les véhicules suivants sont alertés de la décélération même si celle-ci n'est pas provoquée directement par un actionnement des freins.
EP98910600A 1997-03-25 1998-02-11 Systeme pour produire un signal de freinage dans un vehicule a moteur Ceased EP0900155A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712457 1997-03-25
DE19712457A DE19712457A1 (de) 1997-03-25 1997-03-25 System zur Erzeugung eines Bremssignals bei einem Kraftfahrzeug
PCT/DE1998/000373 WO1998042535A1 (fr) 1997-03-25 1998-02-11 Systeme pour produire un signal de freinage dans un vehicule a moteur

Publications (1)

Publication Number Publication Date
EP0900155A1 true EP0900155A1 (fr) 1999-03-10

Family

ID=7824542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98910600A Ceased EP0900155A1 (fr) 1997-03-25 1998-02-11 Systeme pour produire un signal de freinage dans un vehicule a moteur

Country Status (6)

Country Link
US (1) US6185495B1 (fr)
EP (1) EP0900155A1 (fr)
JP (1) JP2000511850A (fr)
KR (1) KR20000015897A (fr)
DE (1) DE19712457A1 (fr)
WO (1) WO1998042535A1 (fr)

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DE19814482A1 (de) * 1998-04-01 1999-10-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Erzeugung eines Fehlersignals bei einem Kraftfahrzeug
DE19833306A1 (de) * 1998-07-24 2000-01-27 Man Nutzfahrzeuge Ag Verfahren zur Ansteuerung eines Bremslichtes in Fahrzeugen
DE19859602B4 (de) * 1998-12-23 2015-02-05 Continental Teves Ag & Co. Ohg Vorrichtung und Verfahren zur bremsbetätigungsunabhängigen Aktivierung eines Signalmittels eines Kraftfahrzeugs
DE10005008C2 (de) * 2000-02-04 2002-03-14 Daimler Chrysler Ag System zum Signalisieren des Bremsbetriebs eines Kraftfahrzeuges
GB2361816A (en) * 2000-04-25 2001-10-31 Alan John Crane Vehicle warning device
DE10024881A1 (de) * 2000-05-19 2002-01-31 Daimler Chrysler Ag Verfahren und Vorrichtung zur Bremslichtansteuerung in Kraftfahrzeugen
DE10116276B4 (de) * 2001-03-31 2019-07-04 Volkswagen Ag Fahrzeug mit Verzögerungswarnlicht
DE10118033A1 (de) * 2001-04-11 2002-10-24 Am3 Automotive Multimedia Ag Verfahren und Vorrichtung zur Ansteuerung der Bremsleuchten eines Kraftfahrzeuges
US6588860B2 (en) * 2001-05-09 2003-07-08 Ford Global Technologies, Llc Temperature compensated lift-throttle regenerative braking
DE102004024514A1 (de) * 2004-05-18 2005-12-15 Adam Opel Ag Signalisierungseinrichtung und Signalisierungsverfahren für ein Kraftfahrzeug
US7301478B1 (en) 2006-03-03 2007-11-27 Overland Safety Technologies Corporation Vehicle safety warning device
DE102006021458A1 (de) * 2006-05-09 2007-11-15 Bayerische Motoren Werke Ag Kraftfahrzeug mit einer Bremsvorgangsanzeigeeinrichtung
CN100488809C (zh) * 2006-11-16 2009-05-20 东风汽车有限公司 汽车制动灯控制方法及装置
DE102007026714A1 (de) * 2007-06-06 2008-12-11 Continental Teves Ag & Co. Ohg Bremslicht-Steuereinrichtung
DE102008055898A1 (de) * 2008-11-05 2010-05-06 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Ansteuerung von zumindest einer Bremsleuchte eines Fahrzeugs
CL2012000933A1 (es) * 2011-04-14 2014-07-25 Harnischfeger Tech Inc Un metodo y una pala de cable para la generacion de un trayecto ideal, comprende: un motor de oscilacion, un motor de izaje, un motor de avance, un cucharon para excavar y vaciar materiales y, posicionar la pala por medio de la operacion del motor de izaje, el motor de avance y el motor de oscilacion y; un controlador que incluye un modulo generador de un trayecto ideal.
SI3363685T1 (sl) * 2017-02-21 2022-04-29 Odelo Gmbh Luč za vozilo in postopek za njeno delovanje
CN108791262B (zh) * 2017-05-05 2022-04-01 罗伯特·博世有限公司 车辆制动系统的制动灯控制

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Also Published As

Publication number Publication date
DE19712457A1 (de) 1998-10-01
JP2000511850A (ja) 2000-09-12
WO1998042535A1 (fr) 1998-10-01
US6185495B1 (en) 2001-02-06
KR20000015897A (ko) 2000-03-15

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