DE4020693A1 - Motor vehicle brake temp. monitoring system - Google Patents

Motor vehicle brake temp. monitoring system

Info

Publication number
DE4020693A1
DE4020693A1 DE19904020693 DE4020693A DE4020693A1 DE 4020693 A1 DE4020693 A1 DE 4020693A1 DE 19904020693 DE19904020693 DE 19904020693 DE 4020693 A DE4020693 A DE 4020693A DE 4020693 A1 DE4020693 A1 DE 4020693A1
Authority
DE
Germany
Prior art keywords
temperature
brake
vehicle
determined
asr
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Withdrawn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
DE19904020693
Other languages
German (de)
Inventor
Werner Ing Grad Konrad
Hermann Dipl Ing Bednarz
Norbert Dipl Ing Polzin
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
Priority to DE19904020693 priority Critical patent/DE4020693A1/en
Priority to PCT/EP1991/001173 priority patent/WO1992000212A1/en
Priority to DE59107156T priority patent/DE59107156D1/en
Priority to EP91912095A priority patent/EP0489887B1/en
Priority to JP51107391A priority patent/JP3437569B2/en
Publication of DE4020693A1 publication Critical patent/DE4020693A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • 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
    • 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
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/175—Brake regulation specially adapted to prevent excessive wheel spin during vehicle acceleration, e.g. for traction control
    • 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
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/20—ASR control systems
    • B60T2270/206—Monitoring, e.g. parameter monitoring, plausibility check
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
    • B60W50/0205—Diagnosing or detecting failures; Failure detection models
    • B60W2050/021—Means for detecting failure or malfunction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/001—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
    • F16D2066/006—Arrangements for monitoring working conditions, e.g. wear, temperature without direct measurement of the quantity monitored, e.g. wear or temperature calculated form force and duration of braking

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)
  • Regulating Braking Force (AREA)

Abstract

The temp. monitoring system allows a warning signal to be supplied and/or reduction of the torque delivered by the engine and/or switching out of the anti-skid braking regulation upon a max, threshold temp. being reached. The temp. increase during braking and anti-slip braking regulation and the temp. reduction during cooling phases are accounted for during the determination fo the brake temp.

Description

Stand der TechnikState of the art

Aus der DE-A1 33 31 297 ist es bekannt, das Motormoment zu reduzieren, wenn festgestellt wird, daß die Temperatur einer Bremse einen vorgegebenen Tempera­ turwert überschritten hat.From DE-A1 33 31 297 it is known to reduce the engine torque when it is determined that the temperature of a brake has a predetermined tempera value has exceeded.

Vorteile der ErfindungAdvantages of the invention

Bei der Erfindung wird die Bremsentemperatur nicht gemessen, sondern unter Be­ rücksichtigung der verschiedenen Möglichkeiten und unter Nutzung von vorhandenen Signalen errechnet. Das im Anspruch 1 erwähnte Merkmal, den ASR-Betrieb zu be­ rücksichtigen und die ASR gegebenenfalls abzuschalten, ist optional, d. h. bei Fahrzeugen ohne ASR gelten die Merkmale des Anspruchs 1 ohne das Merkmal c). Die Funktionen, denen die Temperatur in den verschiedenen Phasen gehorcht, sind von Fahrzeugtyp zu Fahrzeugtyp unterschiedlich und müssen vorab für den Fahrzeugtyp ermittelt werden.In the invention, the brake temperature is not measured, but under Be taking into account the various possibilities and using existing ones Signals calculated. The feature mentioned in claim 1 to be the ASR operation take into account and if necessary switch off the ASR is optional, d. H. at Vehicles without ASR apply the features of claim 1 without the feature c). The functions that the temperature obeys in the different phases, are different from vehicle type to vehicle type and must be approved in advance for the Vehicle type can be determined.

FigurenbeschreibungFigure description

Anhand der Zeichnung wird ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigenAn exemplary embodiment of the invention is explained in more detail with reference to the drawing. Show it

Fig. 1 ein Blockschaltbild eines Ausführungsbeispiels, Fig. 1 is a block diagram of an embodiment

Fig. 2 ein Flußdiagramm für das Ausführungsbeispiel der Fig. 1. FIG. 2 is a flow chart for the embodiment of FIG. 1.

In Fig. 1 sind mit 1 und 2 den Hinterrädern zugeordnete und mit 3 und 4 den Vorderrädern zugeordnete Meßwertgeber für die Radgeschwindigkeiten bezeichnet. Diese liefern ihre Signale an eine Auswerteschaltung 5, die sowohl ein ABS als auch eine ASR beinhaltet. Im ABS-Fall steuert die Auswerteschaltung 5 Magnet­ ventile 6, 7 und 8 zwecks Druckvariation an den Radbremsen. Diese Ventile 6 und 7 werden auch bei ASR zusammen mit einem Ventil 9 verwendet. Letzteres wird über die gesamte ASR-Phase angesteuert und stellt am Eingang der Ventile 6 und 7 Druck zur Verfügung.In Fig. 1 with 1 and 2 assigned to the rear wheels and with 3 and 4 assigned to the front wheels sensors for the wheel speeds. These deliver their signals to an evaluation circuit 5 , which contains both an ABS and an ASR. In the ABS case, the evaluation circuit controls 5 solenoid valves 6 , 7 and 8 for the purpose of pressure variation on the wheel brakes. These valves 6 and 7 are also used in ASR together with a valve 9 . The latter is controlled over the entire ASR phase and provides pressure at the inlet of valves 6 and 7 .

In einem Block 10, der auch Teil der Auswerteschaltung 5 sein könnte, wird die Bremstemperatur nachgebildet, wozu diesem Block 10 die Vorderradgeschwindig­ keitssignale, das an einer Klemme 11 anstehende Bremslichtschaltersignal, die in der Auswerteschaltung 5 gewonnene der Fahrzeuggeschwindigkeit angenäherte Referenzgeschwindigkeit (Ltg. 12), die bei ASR-Betrieb gebildeten Regelabwei­ chungen für die beiden angetriebenen Räder (Ltg. 13 und 14) und das Ansteuer­ signal des ASR-Ventils 9 zugeführt werden. In einem Vergleicher 15 werden die für die beiden angetriebenen Räder ermittelten Temperaturwerte mit einer Grenz­ temperatur verglichen und bei Überschreiten der Grenztemperatur wird ein Signal erzeugt, das einer Warnlampe 16 und auch der Auswerteschaltung 5 zur Abschaltung des ASR und einem Glied 17 zugeführt wird, das das Motormoment reduziert. Die Abschaltung der ASR und die Motormomentreduzierung wird man vorzugsweise alter­ nativ anwenden.In a block 10 , which could also be part of the evaluation circuit 5 , the braking temperature is simulated, for which purpose this block 10 receives the front wheel speed signals, the brake light switch signal present at a terminal 11 , and the reference speed obtained in the evaluation circuit 5 (line 12 ). The rule deviations formed during ASR operation for the two driven wheels (line 13 and 14 ) and the control signal of the ASR valve 9 are supplied. In a comparator 15 , the temperature values determined for the two driven wheels are compared with a limit temperature, and if the limit temperature is exceeded, a signal is generated which is fed to a warning lamp 16 and also to the evaluation circuit 5 for switching off the ASR and a member 17 which does so Motor torque reduced. Switching off the ASR and reducing the engine torque will preferably be used alternatively.

Die Ermittlung der Bremsentemperatur im Block 10 wird nun anhand des Flußdia­ gramms der Fig. 2 beschrieben.The determination of the brake temperature in block 10 will now be described with reference to the flow diagram of FIG. 2.

In einem ersten Block 20 wird ermittelt, ob gebremst wird. Ist ein Bremslicht­ schaltersignal vorhanden, so wird in einem Block 21 festgestellt, ob das Fahr­ zeug in Bewegung ist, die Referenzgeschwindigkeit z. B. 2,5 Km/h ist. Ist dies der Fall, dann wird ein gebremstes Fahrzeug unterstellt. Die Zykluszeit des Rechners in Block 10 ist 10 msec. Eine Änderung des Temperaturwerts soll jeweils erst nach 100 msec vorgenommen werden. Deshalb wird in einem Block 22 in jedem Zyklus eine Größe n um 1 erhöht. In a first block 20 , it is determined whether braking is taking place. Is a brake light switch signal available, it is determined in a block 21 whether the vehicle is in motion, the reference speed z. B. 2.5 km / h. If this is the case, a braked vehicle is assumed. The cycle time of the computer in block 10 is 10 msec. The temperature value should only be changed after 100 msec. Therefore, a size n is increased by 1 in a block 22 in each cycle.

Ist sie gleich 10, so gibt ein Block 23 ein Signal auf seinem linken (Nein-) Ausgang ab (n < 10) und ein Block 24 erhöht die vorher ermittelte Temperatur Talt um ΔT1 zum neuen Temperaturwert Tneu. Für ein spezielles Fahrzeug wurde die jeweilige Temperaturerhöhung nach folgender Beziehung ermitteltIf it is 10, a block 23 emits a signal on its left (no) output (n <10) and a block 24 increases the previously determined temperature T alt by ΔT 1 to the new temperature value T new . For a special vehicle, the respective temperature increase was determined according to the following relationship

Hierzu bedeuten: Δv die Geschwindigkeitsänderung seit der letzten Messung, Vref die Referenzgeschwindigkeit und a und b Konstante. Die obige Beziehung gilt auch für ABS-Bremsungen. ΔT1 und Tneu und Talt sind in °C angegeben. Nach der An­ passung beginnt n wieder mit 1. Bis zur nächsten Änderung bietet ein Block 25 die im Block 24 ermittelte Temperatur als den gültigen Temperaturwert an.To this mean: Δv the speed change since the last measurement, V ref the reference speed and a and b constant. The above relationship also applies to ABS braking. ΔT 1 and T new and T old are given in ° C. After the adaptation, n begins again with 1. Until the next change, a block 25 offers the temperature determined in block 24 as the valid temperature value.

Wird gebremst und steht das Fahrzeug (Vref < Vmin) oder wird nicht gebremst und ASR ist nicht in Betrieb (BLS nicht vorhanden; Ventil 9 nicht angesteuert d. h. Ansteuerspannung USV nicht vorhanden = ) so ist der mittlere Zweig, der Abkühlzweig wirksam. Hier soll nur jeweils nach einer Sekunde eine Korrektur durchgeführt werden. Blöcke 26 und 27 entsprechen den Blöcken 22 und 23 mit dem Unterschied, daß erst bei n = 100 in einem Block 28 ein neuer Temperatur­ wert Tneu ermittelt wird. Dieser wird bei dem gewählten Fahrzeugtyp wie folgt ermittelt:If the vehicle brakes and is stationary (V ref <V min ) or is not braked and ASR is not in operation (BLS not available; valve 9 not activated, ie control voltage UPS not available =), the middle branch, the cooling branch, is effective. A correction should only be carried out here after one second. Blocks 26 and 27 correspond to blocks 22 and 23 with the difference that a new temperature value T new is only determined when n = 100 in a block 28 . This is determined for the selected vehicle type as follows:

Tneu = Talt + ΔT₂ und ΔT₂ = c · Talt + d · Talt²T new = T old + ΔT₂ and ΔT₂ = c · T old + d · T old ²

wobei c = 0,005 und d = 0,25 · 10-4 sind. Zwischen zwei Temperaturermittlungen bietet der Block 29 die zuvor ermittelte Temperatur als gültigen Temperaturwert an.where c = 0.005 and d = 0.25 x 10 -4 . Between two temperature determinations, block 29 offers the previously determined temperature as a valid temperature value.

In ASR-Phasen mit Bremseneingriff ist der linke Zweig wirksam. Während die bis­ her behandelten Zweige für die Bremsen beider Fahrzeugseiten gültig waren, ist im ASR-Fall eine getrennte Ermittlung der Temperatur für beide angetriebenen Räder notwendig. Der ASR-Zweig ist deshalb doppelt vorhanden; die Fahrzeugseiten werden durch x und y unterschieden. The left branch is effective in ASR phases with brake intervention. While the up here treated branches were valid for the brakes of both sides of the vehicle in the ASR case, a separate determination of the temperature for both driven Wheels necessary. The ASR branch is therefore duplicated; the vehicle sides are distinguished by x and y.  

Ist das Ventil 9 angesteuert (USV ist vorhanden, d. h. ist nein), dann wird in Blöcken 30 geprüft, ob die Regelabweichung RA größer 0 ist. Dann wird durch die ASR das zugehörige Rad mit Druck beaufschlagt. In jedem Rechnerzyklus (alle 10 msec) wird hier in Blöcken 32 Tneu = Talt + ΔT3 gebildet, wobei für den ge­ wählten Fahrzeugtyp eine Erhöhung um ΔT3 = e, (e z. B. 0,1 · λ pro 10 msec) gewählt wurde. Dabei herrscht ein mittlerer Regeldruck von ca. 30 bar. Ist die Regelab­ weichung 0, dann wird durch die Blöcke 31 der vorher ermittelte Temperaturwert beibehalten. Ein Schlußblock 33 übernimmt schließlich den gerade gültigen Tempe­ raturwert bzw. das ihn darstellenden Signal und gibt dieses zum Vergleicher 15 weiter.If valve 9 is activated (UPS is present, ie is no), then blocks 30 are used to check whether the control deviation RA is greater than 0. Then the associated wheel is pressurized by the ASR. In each computer cycle (every 10 msec) 32 T new = T old + ΔT 3 is formed here in blocks, with an increase of ΔT 3 = e, (e e.g. 0.1 · λ per 10th for the selected vehicle type msec) was selected. There is an average control pressure of approx. 30 bar. If the control deviation is 0, then the previously determined temperature value is maintained by blocks 31 . A final block 33 finally takes over the currently valid temperature value or the signal representing it and passes this on to the comparator 15 .

Über eine Klemme 18 wird dem Block 10 der Fig. 1 die Umgebungstemperatur zuge­ führt, die bei Start des Fahrzeugs und kalter Bremse als Ausgangstemperatur Talt1 benutzt wird. Während der Fahrt wird jeweils die zuletzt ermittelte Tem­ peratur als Ausgangstemperaturwert Talt1 benutzt.Via a terminal 18 , the block 10 of FIG. 1 is supplied with the ambient temperature which is used as the starting temperature T alt1 when the vehicle is started and the brake is cold. During the journey, the last temperature determined is used as the output temperature value T alt1 .

Bei Abschalten der Zündung darf der ermittelte Bremsentemperaturwert nicht ver­ loren gehen. Vielmehr muß die Temperatur auch in dieser Phase weiter gemäß dem mittleren Zweig der Fig. 2 ermittelt werden bis die Umgebungstemperatur erreicht ist. Erst nach Erreichen der Umgebungstemperatur kann der Block 10 abgeschaltet werden. Bei einem erneuten Anfahren bei noch nicht völlig abgekühlter Bremse muß von dem errechneten Temperaturwert ausgegangen werden.When the ignition is switched off, the determined brake temperature value must not be lost. Rather, the temperature must also be determined in this phase according to the middle branch of FIG. 2 until the ambient temperature is reached. Block 10 can only be switched off after the ambient temperature has been reached. When starting again with the brake not yet fully cooled, the calculated temperature value must be used.

Wird das Motormoment reduziert, so kann dies so erfolgen, daß die Fahrzeugge­ schwindigkeit auf einen Wert reduziert wird, bei der noch ein Abbremsen zum Stillstand möglich ist, ohne daß die Bremse überhitzt wird. Dieser Grenztempe­ raturwert kann für jeden Fahrzeugtyp ermittelt werden.If the engine torque is reduced, this can be done so that the vehicle speed is reduced to a value at which there is still a deceleration to Standstill is possible without the brake overheating. This limit temp The temperature value can be determined for each vehicle type.

Claims (2)

1. Fahrzeug mit Überwachung der Bremsentemperatur und einer Fahrerwarnung und/oder Motormomentreduzierung und/oder einer Abschaltung einer vor­ handenen Antriebsschlupfregelung (ASR) bei Erreichen einer vorgegebenen Grenztemperatur an der Bremse,
  • a) wobei bei Bremsbetätigung ausgehend von der Temperatur bei Brems­ beginn in vorgegebenen kleinen Zeitabständen Temperaturerhöhungen ΔT₁ in Abhängigkeit von der Fahrzeugverzögerung (-v˙) und der Fahrzeuggeschwindigkeit (VF) und fahrzeugspezifischen Konstanten K₁ (Tneu = Talt + ΔT₁; ΔT₁ = f(-v˙, VF, K₁)ermittelt werden,
  • b) wobei ohne Bremsbetätigung und bei Fahrzeughalt ausgehend von einer Anfangstemperatur größer als die Umgebungstemperatur in vorgegebenen kleinen Zeitabständen eine Temperaturerniedrigungen ΔT2 in Abhängig­ keit von der vorhandenen Temperatur, fahrzeugspezifischen Konstan­ ten und gegebenenfalls der Fahrzeuggeschwindigkeit bis zum Erreichen der Umgebungstemperatur TU(Tneu = Talt-ΔT₂; ΔT₂ = f(Talt, K₂))ermittelt werden,
  • c) wobei bei Vorhandensein einer ASR mit Bremseneingriff jeweils während der Bremsphasen ausgehend von der Anfangstemperatur in vorgegebenen kleinen Zeitabständen Temperaturerhöhungen ΔT3 in Abhängigkeit von wenigstens fahrzeugspezifischen Konstanten K3 (Tneu = Talt + ΔT3, ΔT3 = K3) ermittelt werden,
  • d) wobei bei Fahrtbeginn und abgekühlter Bremse als Anfangstemperatur die Umgebungstemperatur und bei Wiederanfahrt bei noch nicht abge­ kühlter Bremse als Anfangstemperatur der gerade gemäß b bestimmte Temperaturwert berücksichtigt wird
  • e) und wobei die so ermittelte Temperatur als Bremsentemperatur benutzt wird.
1. Vehicle with monitoring of the brake temperature and a driver warning and / or engine torque reduction and / or a shutdown of an existing traction control system (ASR) when a predetermined limit temperature is reached on the brake,
  • a) where, starting from the temperature when braking starts at predetermined small intervals, temperature increases ΔT₁ depending on the vehicle deceleration (-v˙) and the vehicle speed (V F ) and vehicle-specific constants K₁ (T new = T old + ΔT₁; ΔT₁ = f (-v˙, V F , K₁) can be determined,
  • b) whereby without brake actuation and when the vehicle stops, starting from an initial temperature greater than the ambient temperature, a temperature decrease ΔT 2 depending on the existing temperature, vehicle-specific constants and, if applicable, the vehicle speed until the ambient temperature T U (T new = T alt -ΔT₂; ΔT₂ = f (T alt , K₂)) are determined,
  • c) where, in the presence of an ASR with brake intervention, temperature increases ΔT 3 are determined in each case during the braking phases based on the starting temperature at predetermined small time intervals as a function of at least vehicle-specific constants K 3 (T new = T old + ΔT 3 , ΔT 3 = K 3 ) ,
  • d) the ambient temperature being taken into account as the initial temperature at the start of the journey and with the brake cooled, and the temperature value just determined in accordance with b when the brake is not yet cooled down is taken as the initial temperature
  • e) and the temperature determined in this way is used as the brake temperature.
2. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Ermittlung der Bremsentemperatur für mehrere Bremsen getrennt erfolgt und daß die Warnung bzw. die Reduzierung des Motormoments bzw. die Abschaltung der ASR erfolgt, wenn an einer Bremse die Grenztemperatur erreicht wird.2. Vehicle according to claim 1, characterized in that the determination the brake temperature for several brakes is done separately and that the Warning or the reduction of the engine torque or the shutdown of the ASR occurs when the limit temperature is reached on a brake.
DE19904020693 1990-06-29 1990-06-29 Motor vehicle brake temp. monitoring system Withdrawn DE4020693A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19904020693 DE4020693A1 (en) 1990-06-29 1990-06-29 Motor vehicle brake temp. monitoring system
PCT/EP1991/001173 WO1992000212A1 (en) 1990-06-29 1991-06-24 Vehicle with brake temperature monitoring
DE59107156T DE59107156D1 (en) 1990-06-29 1991-06-24 VEHICLE WITH BRAKE TEMPERATURE MONITORING
EP91912095A EP0489887B1 (en) 1990-06-29 1991-06-24 Vehicle with brake temperature monitoring
JP51107391A JP3437569B2 (en) 1990-06-29 1991-06-24 How to monitor brake temperature

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904020693 DE4020693A1 (en) 1990-06-29 1990-06-29 Motor vehicle brake temp. monitoring system

Publications (1)

Publication Number Publication Date
DE4020693A1 true DE4020693A1 (en) 1992-02-20

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DE19904020693 Withdrawn DE4020693A1 (en) 1990-06-29 1990-06-29 Motor vehicle brake temp. monitoring system

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DE (1) DE4020693A1 (en)

Cited By (18)

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DE4235364A1 (en) * 1992-10-20 1994-04-21 Knorr Bremse Ag Disc brake temperature detection method
DE4418768A1 (en) * 1994-05-28 1995-12-14 Daimler Benz Ag Method for determining the braking surface temperature for a motor vehicle wheel
DE19528553A1 (en) * 1994-08-05 1996-02-15 Toyota Motor Co Ltd Traction control system for motor vehicle
DE19726116A1 (en) * 1997-06-20 1999-01-21 Wabco Gmbh Method for braking a vehicle
DE10105638A1 (en) * 2001-02-08 2002-08-22 Volkswagen Ag Method for protecting vehicle brakes against thermal overload, involves reducing engine acceleration capability by intervening in engine management when a braking-critical driving state is detected
WO2002064408A1 (en) * 2001-02-12 2002-08-22 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Method for reducing the operating temperature in electromechanical brake tightening devices in a vehicle brake
DE10219039A1 (en) * 2002-04-29 2003-11-13 Wabco Gmbh & Co Ohg Method and arrangement for monitoring vehicle brakes of electronically controlled brake systems of vehicles and vehicle combinations for overload
US6804598B2 (en) 2002-04-29 2004-10-12 Wabco Gmbh & Co Ohg System and method for controlling brake actuation energy in electronically-controlled vehicle brake systems
US6913328B2 (en) 2002-04-29 2005-07-05 Wabco Gmbh & Co. Ohg System and method for controlling brake actuation energy in electronically-controlled brake systems of tractor and trailer vehicle combinations
DE10157449B4 (en) * 2001-11-23 2005-07-28 Lucas Automotive Gmbh Operation of a vehicle brake system as a function of brake surface temperatures
DE102005004576A1 (en) * 2005-02-01 2006-08-10 Fendt, Günter Brake system for e.g. passenger car, has brake booster with brake pedal and wheel brake actuator, temperature sensor for detection of heating of actuator, and evaluation device for determination of energy equivalents
US7152935B2 (en) 2001-11-23 2006-12-26 Lucas Automotive Gmbh Operation of a vehicle brake system in dependence upon brake surface temperatures
DE19752345B4 (en) * 1996-12-04 2007-04-12 Volkswagen Ag Method for influencing the operational management of a motor vehicle at high temperatures at the brakes
DE102007025926A1 (en) 2007-06-02 2008-12-04 Bayerische Motoren Werke Aktiengesellschaft Method for influence of operation management of motor vehicle brakes at high temperatures, involves determining reduced maximum drive moment as function of track longitudinal gradient
WO2013072001A1 (en) * 2011-11-16 2013-05-23 Audi Ag Motor vehicle
CN106122319A (en) * 2016-06-15 2016-11-16 陈昌志 Automobile intelligent thermometric alarm
EP1971511B1 (en) 2006-01-04 2019-03-06 Volvo Lastvagnar AB System for controlling a foundation brake of a vehicle
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DE19726116B4 (en) * 1997-06-20 2016-12-08 Wabco Gmbh Method for decelerating a vehicle
DE19726116A1 (en) * 1997-06-20 1999-01-21 Wabco Gmbh Method for braking a vehicle
DE10105638A1 (en) * 2001-02-08 2002-08-22 Volkswagen Ag Method for protecting vehicle brakes against thermal overload, involves reducing engine acceleration capability by intervening in engine management when a braking-critical driving state is detected
DE10105638B4 (en) * 2001-02-08 2011-04-21 Volkswagen Ag Method for protecting the brakes of a motor vehicle against thermal overload
WO2002064408A1 (en) * 2001-02-12 2002-08-22 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Method for reducing the operating temperature in electromechanical brake tightening devices in a vehicle brake
US7152935B2 (en) 2001-11-23 2006-12-26 Lucas Automotive Gmbh Operation of a vehicle brake system in dependence upon brake surface temperatures
DE10157449B4 (en) * 2001-11-23 2005-07-28 Lucas Automotive Gmbh Operation of a vehicle brake system as a function of brake surface temperatures
US6934618B2 (en) 2002-04-29 2005-08-23 Wabco Gmbh & Co. Ohg System and method for monitoring brake overload in electronically-controlled brake systems of vehicles and vehicle combinations
DE10219039A1 (en) * 2002-04-29 2003-11-13 Wabco Gmbh & Co Ohg Method and arrangement for monitoring vehicle brakes of electronically controlled brake systems of vehicles and vehicle combinations for overload
US6913328B2 (en) 2002-04-29 2005-07-05 Wabco Gmbh & Co. Ohg System and method for controlling brake actuation energy in electronically-controlled brake systems of tractor and trailer vehicle combinations
US6804598B2 (en) 2002-04-29 2004-10-12 Wabco Gmbh & Co Ohg System and method for controlling brake actuation energy in electronically-controlled vehicle brake systems
DE102005004576A1 (en) * 2005-02-01 2006-08-10 Fendt, Günter Brake system for e.g. passenger car, has brake booster with brake pedal and wheel brake actuator, temperature sensor for detection of heating of actuator, and evaluation device for determination of energy equivalents
DE102005004576B4 (en) * 2005-02-01 2010-10-21 Fendt, Günter Brake system with monitoring function for a motor vehicle
EP1971511B1 (en) 2006-01-04 2019-03-06 Volvo Lastvagnar AB System for controlling a foundation brake of a vehicle
DE102007025926A1 (en) 2007-06-02 2008-12-04 Bayerische Motoren Werke Aktiengesellschaft Method for influence of operation management of motor vehicle brakes at high temperatures, involves determining reduced maximum drive moment as function of track longitudinal gradient
DE102007025926B4 (en) 2007-06-02 2022-08-11 Bayerische Motoren Werke Aktiengesellschaft Method for influencing the operational management of a motor vehicle at high brake temperatures
WO2013072001A1 (en) * 2011-11-16 2013-05-23 Audi Ag Motor vehicle
US9738212B2 (en) 2011-11-16 2017-08-22 Audi Ag Motor vehicle
CN106122319A (en) * 2016-06-15 2016-11-16 陈昌志 Automobile intelligent thermometric alarm
DE102021106978A1 (en) 2021-03-22 2022-09-22 Zf Cv Systems Global Gmbh Method for controlling a vehicle, control device and vehicle
WO2022199991A1 (en) * 2021-03-22 2022-09-29 Zf Cv Systems Global Gmbh Method for controlling a vehicle, control device, and vehicle

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