DE19716987A1 - Reducing braking distance of motor vehicle - Google Patents

Reducing braking distance of motor vehicle

Info

Publication number
DE19716987A1
DE19716987A1 DE1997116987 DE19716987A DE19716987A1 DE 19716987 A1 DE19716987 A1 DE 19716987A1 DE 1997116987 DE1997116987 DE 1997116987 DE 19716987 A DE19716987 A DE 19716987A DE 19716987 A1 DE19716987 A1 DE 19716987A1
Authority
DE
Germany
Prior art keywords
steering
vehicle
superimposed
arrangement according
control
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.)
Withdrawn
Application number
DE1997116987
Other languages
German (de)
Inventor
Klaus Gehring
Mile Jokic
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.)
Continental Teves AG and Co OHG
Original Assignee
ITT Manufacturing Enterprises LLC
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 ITT Manufacturing Enterprises LLC filed Critical ITT Manufacturing Enterprises LLC
Priority to DE1997116987 priority Critical patent/DE19716987A1/en
Publication of DE19716987A1 publication Critical patent/DE19716987A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
    • 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
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • 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
    • B60T2260/00—Interaction of vehicle brake system with other systems
    • B60T2260/02—Active Steering, Steer-by-Wire

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Regulating Braking Force (AREA)

Abstract

The equipment on board a motor vehicle gives a controlled braking procedure. An alternating, approximately periodic steering movement is superimposed on the steering actions of the driver. The equipment intervenes in the steering mechanism of the vehicle and there is an electronic control or closed loop control system. The vehicle follows a snake-like path in its further travel. Preferably, the amplitude or period of the superimposed steering motion can be varied as a function of the speed or deceleration of the vehicle.

Description

Die Erfindung bezieht sich auf eine Anordnung zur Verkürzung des Bremsweges eines Kraftfahrzeuges während eines geregelten, blockiergeschützten Bremsvorgangs.The invention relates to an arrangement for shortening the braking distance of a motor vehicle during a regulated, anti-lock braking.

Bei allen Verbesserungen, Änderungen und Eingriffen in gere­ gelte oder ungeregelte Bremssysteme steht die Forderung nach Erhalt oder Verkürzung des Bremsweges ohne Beeinträchtigung der Fahrstabilität an erster Stelle. Alle Optimierungswünsche führen schließlich zu einer Erhöhung des Herstellungsaufwandes für das Bremssystem, die Reifen, das Fahrwerk etc. und stoßen sehr bald auf physikalische Grenzen.With all improvements, changes and interventions in general valid or unregulated brake systems is the demand Preservation or shortening of the braking distance without impairment driving stability in the first place. All optimization requests eventually lead to an increase in manufacturing costs for the brake system, the tires, the chassis etc. and bump very soon to physical limits.

Der Erfindung liegt daher die Aufgabe zugrunde, einen neuen, von den konventionellen Maßnahmen unabhängigen Weg zur Verkür­ zung des Bremsweges eines Kraftfahrzeuges aufzufinden.The object of the invention is therefore to develop a new way of making independent of the conventional measures finding the braking distance of a motor vehicle.

Es hat sich gezeigt, daß diese Aufgabe durch die im Anspruch 1 beschriebene Anordnung gelöst wird. Das Besondere dieser An­ ordnung besteht darin, daß eine Einrichtung zum Eingriff in das Lenksystem des Kraftfahrzeugs sowie ein elektronisches Steuerungs- und/oder Regelungssystem vorgesehen sind und daß während eines geregelten Bremsvorgangs mit Hilfe dieses Steuerungs- und/oder Regelungssystem den vom Fahrzeugführer ausgeübten Lenkbewegungen eine alternierende, periodische Lenkbewegung überlagert wird, die eine schlangenlinienförmige Bewegung des Fahrzeugs in Fahrtrichtung hervorruft.It has been shown that this task by the in claim 1 described arrangement is solved. The specialty of this type order is that a device for engaging in the steering system of the motor vehicle and an electronic one Control and / or regulation system are provided and that during a controlled braking process using this Control and / or regulation system by the driver exerted steering movements an alternating, periodic Steering movement is superimposed on a serpentine Movement of the vehicle in the direction of travel.

Durch dieses schlangenlinienförmige Fahren wird die tatsäch­ lich von dem Fahrzeug zurückgelegte Fahrtstrecke erhöht und dadurch der Bremsweg, nämlich die Entfernung des Fahrzeugs zu Beginn des Bremsvorgangs bis zum Endpunkt des betrachteten Bremsmanövers, entsprechend verkürzt.Through this serpentine driving the actual Lich distance traveled by the vehicle increased and  thereby the braking distance, namely the distance of the vehicle Beginning of the braking process to the end point of the considered Braking maneuvers, shortened accordingly.

Normalerweise steht bei einem Bremsvorgang eine für die schlangenlinienförmige Bewegung ausreichende Fahrbahnbreite zur Verfügung, die erfindungsgemäß für die Bremswegverkürzung genutzt wird.Usually, when braking, one stands for serpentine movement sufficient lane width available, the invention for the braking distance reduction is being used.

Nach einem vorteilhaften Ausführungsbeispiel der Erfindung ist die Amplitude und/oder die Periodendauer der über lagerten Lenkbewegung in Abhängigkeit von der Geschwindigkeit des Fahr­ zeugs variierbar. Eine Abhängigkeit dieser Größen von dem Lenkwinkel, den der Fahrer vorgibt, dürfte ebenfalls zweck­ mäßig sein.According to an advantageous embodiment of the invention the amplitude and / or the period of the overlaid Steering movement depending on the speed of the driving stuff variable. A dependence of these sizes on that Steering angle, which the driver specifies, should also be useful be moderate.

Ein weiteres Ausführungsbeispiel besteht darin, daß der Len­ kungseingriff oder die über lagerte Lenkbewegung in Abhängig­ keit von dem momentanen Reibbeiwert, von der Fahrstabilität und von anderen Größen steuerbar und/oder regelbar ist.Another embodiment is that the Len intervention or the superimposed steering movement depending speed of the current coefficient of friction, of driving stability and can be controlled and / or regulated by other sizes.

Schließlich ist erfindungsgemäß noch vorgesehen, die Eingangs­ größen des elektronischen Steuerungs- und/oder Regelungssystem aus den Eingangsdaten oder den Regelsignalen eines im Fahrzeug vorhandenen Regelungssystems, wie ABS, ASR, ASMS oder derglei­ chen, abzuleiten. Der für den erfindungsgemäßen Lenkeingriff erforderliche Zusatzaufwand wird dadurch minimal.Finally, according to the invention, the input is also provided sizes of the electronic control and / or regulation system from the input data or the control signals of one in the vehicle existing control system, such as ABS, ASR, ASMS or the like chen to derive. The one for the steering intervention according to the invention the additional effort required is minimal.

Die erfindungsgemäße Anordnung ist unabhängig von dem jeweili­ gen Fahrzeugtyp, der Bremsanlage und dem Regelungssystem ein­ setzbar und führt in jedem Falle zu einer zusätzlichen Ver­ besserung bzw. Bremswegverkürzung. Die ohnehin im Fahrzeug vorhandenen Sensoren, manche elektronischen Schaltkreise und hydraulische Komponenten lassen sich für die erfindungsgemäße Anordnung nutzen.The arrangement according to the invention is independent of the respective vehicle type, the brake system and the control system settable and in any case leads to an additional Ver improvement or braking distance reduction. The one in the vehicle anyway existing sensors, some electronic circuits and  Hydraulic components can be used for the invention Use arrangement.

Werden Detektoren oder Abstandssensoren zur Erkennung der seitlichen Begrenzung oder seitlich vorhandener Hindernisse eingesetzt, kann die Anordnung auch zum automatischen Auswei­ chen oder Umfahren der Hindernisse verwendet werden. Mit Hilfe solcher Sensoren, die den seitlich zur Verfügung stehenden Raum erfassen, läßt sich die optimale oder zulässige Amplitude der seitlichen Bewegung des Fahrzeugs den Erfordernissen an­ passen.Are detectors or distance sensors to detect the lateral limitation or obstacles on the side used, the arrangement can also for automatic identification or avoiding obstacles. With help such sensors that are available on the side The optimal or permissible amplitude can be captured in space the lateral movement of the vehicle according to the requirements fit.

Claims (5)

1. Anordnung zur Verkürzung des Bremsweges eines Kraftfahr­ zeugs bei einem geregelten, blockiergeschützten Bremsvor­ gang, dadurch gekennzeichnet, daß eine Einrichtung zum Ein­ griff in das Lenksystem des Fahrzeugs sowie ein elektro­ nisches Steuerungs- und/oder Regelungssystem vorgesehen sind, und daß während eines geregelten Bremsvorgangs mit Hilfe dieses Steuerungs- und/oder Regelungssystems den von dem Fahrzeugführer ausgeübten Lenkbewegungen eine alternie­ rende, annähernd periodische Lenkbewegung überlagert wird, die eine schlangenförmige Fortbewegung des Fahrzeugs in Fahrtrichtung hervorruft.1. Arrangement for shortening the braking distance of a motor vehicle in a regulated, anti-lock braking operation, characterized in that a device for a handle in the steering system of the vehicle and an electronic control and / or regulating system are provided, and that during a regulated Braking with the help of this control and / or regulating system is superimposed on the steering movements exercised by the driver an alternating, approximately periodic steering movement which causes a serpentine movement of the vehicle in the direction of travel. 2. Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß die Amplitude und/oder die Periodendauer der über lagerten Lenk­ bewegung in Abhängigkeit von der Geschwindigkeit und/oder der Verzögerung des Fahrzeugs variierbar sind.2. Arrangement according to claim 1, characterized in that the Amplitude and / or the period of the superimposed steering movement depending on the speed and / or the deceleration of the vehicle can be varied. 3. Anordnung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die über lagerte Lenkbewegung in Abhängigkeit von dem von dem Fahrer vorgegebenen Lenkwinkel oder Lenkeinschlag variierbar ist.3. Arrangement according to claim 1 or 2, characterized in that the superimposed steering movement depending on the steering angle or steering angle specified by the driver is variable. 4. Anordnung nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Lenkeingriff oder die über­ lagerte Lenkbewegung in Abhängigkeit von der momentanen Fahrsituation, von dem Reibwert, von der Fahrstabilität des Fahrzeugs etc. steuerbar und/oder regelbar ist.4. Arrangement according to one or more of claims 1 to 3, characterized in that the steering intervention or the over stored steering movement depending on the current Driving situation, from the coefficient of friction, from the driving stability of the Vehicle etc. is controllable and / or adjustable. 5. Anordnung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Eingangsgrößen des elek­ trischen Steuerungs- und/oder Regelungssystems aus den Ein­ gangsdaten oder den Regelungssignalen eines im Fahrzeug vorhandenen Regelungssystems, wie eines ABS, ASR, ASMS etc., abgeleitet werden.5. Arrangement according to one or more of claims 1 to 4, characterized in that the input variables of the elec trical control and / or regulation system from the Ein  data or the control signals of a vehicle existing control system, such as an ABS, ASR, ASMS etc., can be derived.
DE1997116987 1997-04-23 1997-04-23 Reducing braking distance of motor vehicle Withdrawn DE19716987A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997116987 DE19716987A1 (en) 1997-04-23 1997-04-23 Reducing braking distance of motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997116987 DE19716987A1 (en) 1997-04-23 1997-04-23 Reducing braking distance of motor vehicle

Publications (1)

Publication Number Publication Date
DE19716987A1 true DE19716987A1 (en) 1998-10-29

Family

ID=7827396

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997116987 Withdrawn DE19716987A1 (en) 1997-04-23 1997-04-23 Reducing braking distance of motor vehicle

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Country Link
DE (1) DE19716987A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10100743A1 (en) * 2000-01-14 2001-07-19 Continental Teves Ag & Co Ohg Regulating braking and driving stability of moving vehicle involves controlling individually steerable wheels to wholly or partially generate computed braking torques or forces
DE10141274A1 (en) * 2001-08-23 2003-03-27 Bayerische Motoren Werke Ag Motor vehicle steering system with a yaw rate controller
DE102020207728A1 (en) 2020-06-22 2021-12-23 Volkswagen Aktiengesellschaft Method for setting a steering angle of a motor vehicle and steering system
DE102021212475B3 (en) 2021-11-05 2023-03-30 Volkswagen Aktiengesellschaft Method and device for temperature control of vehicle tires

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830790A1 (en) * 1988-09-09 1990-03-15 Freund Eckhard METHOD AND DEVICE FOR AUTOMATIC COLLISION AVOIDANCE FOR AUTOMATICALLY DRIVABLE VEHICLES
DE4000995A1 (en) * 1989-01-26 1990-08-02 Volkswagen Ag Active steering control for vehicle - has monitors for transverse acceleration and modulation of steering settings
DE4009400A1 (en) * 1990-03-23 1991-09-26 Porsche Ag ACTUATOR FOR A CYBERNETIC STEERING
DE4035547A1 (en) * 1990-11-08 1992-05-14 Eckhard Freund Automatically guided motor vehicle with enhanced ride comfort - employs supplementary controller to adjust damping of steering oscillations according to antenna point distance from centroid
DE4419131A1 (en) * 1993-06-11 1994-12-15 Volkswagen Ag Motor vehicle, preferably passenger vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830790A1 (en) * 1988-09-09 1990-03-15 Freund Eckhard METHOD AND DEVICE FOR AUTOMATIC COLLISION AVOIDANCE FOR AUTOMATICALLY DRIVABLE VEHICLES
DE4000995A1 (en) * 1989-01-26 1990-08-02 Volkswagen Ag Active steering control for vehicle - has monitors for transverse acceleration and modulation of steering settings
DE4009400A1 (en) * 1990-03-23 1991-09-26 Porsche Ag ACTUATOR FOR A CYBERNETIC STEERING
DE4035547A1 (en) * 1990-11-08 1992-05-14 Eckhard Freund Automatically guided motor vehicle with enhanced ride comfort - employs supplementary controller to adjust damping of steering oscillations according to antenna point distance from centroid
DE4419131A1 (en) * 1993-06-11 1994-12-15 Volkswagen Ag Motor vehicle, preferably passenger vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10100743A1 (en) * 2000-01-14 2001-07-19 Continental Teves Ag & Co Ohg Regulating braking and driving stability of moving vehicle involves controlling individually steerable wheels to wholly or partially generate computed braking torques or forces
DE10100743B4 (en) * 2000-01-14 2011-12-01 Continental Teves Ag & Co. Ohg Method and device for regulating the deceleration and driving stability of a moving vehicle
DE10141274A1 (en) * 2001-08-23 2003-03-27 Bayerische Motoren Werke Ag Motor vehicle steering system with a yaw rate controller
DE102020207728A1 (en) 2020-06-22 2021-12-23 Volkswagen Aktiengesellschaft Method for setting a steering angle of a motor vehicle and steering system
DE102021212475B3 (en) 2021-11-05 2023-03-30 Volkswagen Aktiengesellschaft Method and device for temperature control of vehicle tires

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8127 New person/name/address of the applicant

Owner name: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, D

8139 Disposal/non-payment of the annual fee