DE102010041099A1 - Electrically actuated parking brake i.e. automatic parking brake, recalibrating method for vehicle, involves setting memory request such that parking brake is opened after temporary failure of control unit - Google Patents
Electrically actuated parking brake i.e. automatic parking brake, recalibrating method for vehicle, involves setting memory request such that parking brake is opened after temporary failure of control unit Download PDFInfo
- Publication number
- DE102010041099A1 DE102010041099A1 DE102010041099A DE102010041099A DE102010041099A1 DE 102010041099 A1 DE102010041099 A1 DE 102010041099A1 DE 102010041099 A DE102010041099 A DE 102010041099A DE 102010041099 A DE102010041099 A DE 102010041099A DE 102010041099 A1 DE102010041099 A1 DE 102010041099A1
- Authority
- DE
- Germany
- Prior art keywords
- parking brake
- control unit
- temporary failure
- recalibrating
- brake
- 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.)
- Pending
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Classifications
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- 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
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
- B60T13/741—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on an ultimate actuator
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
- B60T7/107—Disposition of hand control with electrical power assistance
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung betrifft ein Verfahren zum Rekalibrieren einer elektrisch betätigten Feststellbremse, die mittels eines Bedienelements betätigt wird.The invention relates to a method for recalibrating an electrically operated parking brake, which is actuated by means of an operating element.
Moderne Fahrzeuge sind häufig mit elektrisch betätigten Feststellbremsen ausgestattet, die auch als automatische Parkbremsen (APB) bezeichnet werden. Derartige Feststellbremsen umfassen in der Regel ein Bedienelement, wie z. B. einen Taster, mit dem die Feststellbremse verriegelt und/oder gelöst werden kann. Bei einer Betätigung des Tasters erkennt ein damit verbundenes Steuergerät den Feststellbremswunsch und steuert entsprechend einen Aktuator, wie z. B. einen Elektromotor, an, um die Feststellbremse zu verriegeln oder zu lösen. Bei elektromechanischen Systemen wird die Bremskraft z. B. von Elektromotoren (mit Getrieben) erzeugt, die sich z. B. direkt an der Radbremse („motor on caliper”) oder an anderer Stelle befinden.Modern vehicles are often equipped with electrically operated parking brakes, also referred to as automatic parking brakes (APB). Such parking brakes usually include a control element such. As a button with which the parking brake locked and / or can be solved. Upon actuation of the button, an associated control unit detects the parking brake request and accordingly controls an actuator, such. As an electric motor, to lock or unlock the parking brake. In electromechanical systems, the braking force z. B. generated by electric motors (with gears), the z. B. directly on the wheel brake ("motor on caliper") or elsewhere.
Um derartige Feststellbremsen zu lösen, werden die Aktuatoren üblicherweise eine vorgegebene Zeitdauer oder eine vorgegebene Anzahl von Umdrehungen in Löserichtung angetrieben. Um derartige Feststellbremsen zu verriegeln, werden die Aktuatoren üblicherweise bis zum Erreichen eines definierten Stromniveaus in Richtung der Bremsscheibe angetrieben. Das Stromniveau wird üblicherweise entsprechend den während dem Verriegeln ermittelten Motorparametern angepasst. Um beim Verriegeln die gewünschte Klemmkraft einzustellen, müssen die Aktuatoren aus einem geöffneten Zustand mit einem Mindestabstand zur Bremsscheibe gestartet werden. Dieser Mindestabstand ist erforderlich um das Ermitteln der relevanten Motorparameter zu ermöglichen. Wenn nun während der Vorwärts- oder Rückwärtsbewegung der Verriegelungseinrichtung das Steuergerät – z. B. wegen einer Unter- oder Überspannung – ausfällt, ist in der Regel nicht bekannt, in welcher Position sich die Verriegelungseinrichtung gerade befindet. Wenn das Steuergerät während des Lösens der Verriegelungseinrichtung ausfällt, würde bei einer erneuten Betätigung des Tasters zum Lösen, die Feststellbremse daher wiederum einen festen Standardweg rückwärts bewegt werden und möglicherweise gegen einen Anschlag laufen. Wenn das Steuergerät während des Zuspannens der Verriegelungseinrichtung ausfällt, ist es außerdem nicht immer möglich, die gewünschte Klemmkraft einzustellen, da die Anfangsposition und damit der notwendige Mindestabstand zur Bremsscheibe nicht bekannt sind.To solve such parking brakes, the actuators are usually driven a predetermined time or a predetermined number of revolutions in the release direction. To lock such parking brakes, the actuators are usually driven until reaching a defined current level in the direction of the brake disc. The current level is usually adjusted according to the motor parameters determined during locking. To set the desired clamping force during locking, the actuators must be started from an open state with a minimum distance to the brake disc. This minimum distance is required to enable the determination of the relevant motor parameters. If now during the forward or backward movement of the locking device, the control unit -. B. due to under- or overvoltage - fails, is not known in which position the locking device is currently in the rule. If the control unit fails during the release of the locking device, a renewed actuation of the button to release the parking brake, therefore, again a fixed standard path would be moved backwards and possibly run against a stop. In addition, if the control unit fails during the application of the locking device, it is not always possible to set the desired clamping force, since the initial position and thus the necessary minimum distance to the brake disc are not known.
Offenbarung der ErfindungDisclosure of the invention
Es ist daher Aufgabe der vorliegenden Erfindung, die Funktionsfähigkeit einer Feststellbremse nach einem Steuergeräteausfall sicherzustellen und eine automatische oder durch den Fahrer eingeleitete Rekalibrierung der Feststellbremse in eine geöffnete Ausgangslage zu ermöglichen.It is therefore an object of the present invention to ensure the functionality of a parking brake after a controller failure and to allow an automatic or initiated by the driver recalibration of the parking brake in an open starting position.
Gelöst wird diese Aufgabe gemäß der Erfindung durch die im Patentanspruch 1 angegebenen Merkmale. Weitere Ausgestaltungen der Erfindung sind Gegenstand von Unteransprüchen.This object is achieved according to the invention by the features specified in
Gemäß der Erfindung wird vorgeschlagen, nach einer Betätigung des Bedienelements der Feststellbremse einen Speichereintrag zu erzeugen, der einen Übergangszustand der Feststellbremse kennzeichnet. Die Bedingung für das Erzeugen des Speichereintrags kann z. B. das Einschalten des Aktuators in Verriegelungs- oder Löserichtung, die Tasterbetätigung selbst, oder eine andere Bedingung sein. Wenn das Steuergerät der Feststellbremse während einer Aktion der Verriegelungseinrichtung – z. B. wegen einer Unter- bzw. Überspannung – ausfällt, wird, nachdem sich das Steuergerät wieder initialisiert hat, überprüft, ob der genannte Speichereintrag gesetzt ist. Sofern der Speichereintrag gesetzt ist, wird die Feststellbremse vollautomatisch oder nach erneuter Betätigung des Bedienelements in eine definierte, geöffnete Ausgangslage gebracht. Ein Verriegeln der Feststellbremse durch Tasterbetätigung soll nicht möglich sein. Der Öffnungsvorgang wird von einem Steuergerät gesteuert. Ist der Speichereintrag dagegen nicht gesetzt, kann die Feststellbremse in der gewohnten Weise nach Wunsch verriegelt oder geöffnet werden.According to the invention it is proposed to generate a memory entry after an actuation of the operating element of the parking brake, which characterizes a transition state of the parking brake. The condition for generating the memory entry may, for. Example, the switching on of the actuator in the locking or release direction, the button operation itself, or another condition. If the parking brake control unit during an action of the locking device -. B. due to under- or overvoltage - fails, after the controller has reinitialized, checked whether the said memory entry is set. If the memory entry is set, the parking brake is brought fully automatically or after re-actuation of the control element in a defined, opened starting position. A locking of the parking brake by pressing the button should not be possible. The opening process is controlled by a control unit. However, if the memory entry is not set, the parking brake can be locked or opened in the usual way as desired.
Gemäß einer bevorzugten Ausführungsform der Erfindung wird die Feststellbremse nach einem vorübergehenden Ausfall des Steuergeräts in die geöffnete Endposition zurück gefahren und somit neu kalibriert. Dies kann automatisch oder durch erneute Betätigung eines Bedienelements erfolgen.According to a preferred embodiment of the invention, the parking brake is driven back after a temporary failure of the controller in the open end position and thus recalibrated. This can be done automatically or by re-pressing a control.
Zur Rekalibrierung wird die Feststellbremse vorzugsweise einen bestimmten, festen Weg zurück gefahren. Wenn sie dabei einen Endanschlag erreicht, wird sie danach vorzugsweise in Vorwärts- bzw. Zuspannrichtung bis auf ein definiertes Stromniveau bewegt und anschließend wieder, z. B. weggesteuert, in die geöffnete Ausgangslage gebracht. Das Auflaufen der Verriegelungseinrichtung auf einen Endanschlag kann beispielsweise über die Stromaufnahme des Elektromotors erkannt werden.For recalibration, the parking brake is preferably driven back a certain, fixed path. If it reaches an end stop, it is then preferably moved in the forward or application direction to a defined current level and then again, z. B. away, brought into the open starting position. The emergence of the locking device on an end stop can be detected for example via the current consumption of the electric motor.
Im Falle eines Steuergeräteausfalls wird vorzugsweise eine Fehlermeldung generiert, wenn ein entsprechender Speichereintrag gesetzt ist. Die Fehlermeldung kann beispielsweise eine optische und/oder akustische Meldung sein, die den Fahrer dazu auffordern soll, die Feststellbremse nochmals zu lösen und zu rekalibrieren.In the case of a controller failure, an error message is preferably generated when a corresponding memory entry is set. The error message can be, for example, a visual and / or audible message, which is to ask the driver to solve the parking brake again and to recalibrate.
Zur Anzeige des Fehlerzustandes kann beispielsweise eine Kontrollleuchte eingeschaltet und/oder ein Text im Fahrerinformationssystem angezeigt werden.For example, a warning light can be switched on and / or a text can be displayed in the driver information system to indicate the fault condition.
Eine erfindungsgemäße Feststellbremse umfasst ein Steuergerät mit einem speziellen Algorithmus, mittels dessen die Feststellbremse in der vorstehend beschriebenen Weise gesteuert wird.A parking brake according to the invention comprises a control unit with a special algorithm, by means of which the parking brake is controlled in the manner described above.
Die Erfindung wird nachstehend anhand der beigefügten Zeichnungen beispielhaft näher erläutert. Es zeigen:The invention will now be described by way of example with reference to the accompanying drawings. Show it:
Wenn während eines Verriegelungs- oder Lösevorgangs das Steuergerät
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041099A DE102010041099A1 (en) | 2010-09-21 | 2010-09-21 | Electrically actuated parking brake i.e. automatic parking brake, recalibrating method for vehicle, involves setting memory request such that parking brake is opened after temporary failure of control unit |
FR1158283A FR2964927A1 (en) | 2010-09-21 | 2011-09-19 | AUTOMATIC RECALIBRATION METHOD OF AN ELECTRIC PARKING BRAKE |
CN201110279398.3A CN102407842B (en) | 2010-09-21 | 2011-09-20 | There is the parking brake of recalibration function automatically after controller is out of service |
JP2011204923A JP5911247B2 (en) | 2010-09-21 | 2011-09-20 | Parking brake with automatic recalibration after controller failure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010041099A DE102010041099A1 (en) | 2010-09-21 | 2010-09-21 | Electrically actuated parking brake i.e. automatic parking brake, recalibrating method for vehicle, involves setting memory request such that parking brake is opened after temporary failure of control unit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010041099A1 true DE102010041099A1 (en) | 2012-03-22 |
Family
ID=45768785
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010041099A Pending DE102010041099A1 (en) | 2010-09-21 | 2010-09-21 | Electrically actuated parking brake i.e. automatic parking brake, recalibrating method for vehicle, involves setting memory request such that parking brake is opened after temporary failure of control unit |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP5911247B2 (en) |
CN (1) | CN102407842B (en) |
DE (1) | DE102010041099A1 (en) |
FR (1) | FR2964927A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5989530B2 (en) * | 2012-12-04 | 2016-09-07 | オムロンオートモーティブエレクトロニクス株式会社 | Electric parking brake control device |
DE102014202152A1 (en) * | 2014-02-06 | 2015-08-06 | Robert Bosch Gmbh | A method for determining a triggering condition for recalibrating an automatic parking brake |
JP6237662B2 (en) * | 2015-01-30 | 2017-11-29 | 株式会社アドヴィックス | Brake control device |
MX2019013972A (en) | 2017-05-22 | 2020-01-23 | Nissan Motor | Automatic parking control method and automatic parking control apparatus for vehicles. |
DE102017215291A1 (en) * | 2017-08-31 | 2019-02-28 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Electro-mechanical brake actuator with make-up for a parking brake of a rail vehicle |
CN107554513B (en) * | 2017-09-07 | 2019-06-14 | 中车青岛四方车辆研究所有限公司 | Calibration module, control system, calibration method and control method |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3837195B2 (en) * | 1996-12-26 | 2006-10-25 | 曙ブレーキ工業株式会社 | Electric brake with pad clearance adjustment mechanism and pad clearance adjustment method |
JPH11278250A (en) * | 1998-03-26 | 1999-10-12 | Toyota Motor Corp | Motor-driven parking brake device |
JP4570751B2 (en) * | 2000-08-30 | 2010-10-27 | 日立オートモティブシステムズ株式会社 | Electric brake system |
US20050258681A1 (en) * | 2004-05-20 | 2005-11-24 | Delphi Technologies, Inc. | Brake with calibration and diagnostics and method and program product related thereto |
JP4466582B2 (en) * | 2006-02-17 | 2010-05-26 | トヨタ自動車株式会社 | Electric parking brake device |
JP4656068B2 (en) * | 2006-03-24 | 2011-03-23 | アイシン・エィ・ダブリュ株式会社 | Vehicle parking control system |
DE102006024011A1 (en) * | 2006-05-23 | 2007-11-29 | Zf Friedrichshafen Ag | Method and device for setting and controlling a hydrodynamic retarder of a motor vehicle |
US7400961B2 (en) * | 2006-06-30 | 2008-07-15 | General Motors Corporation | Powertrain and method for controlling a driveline retarder |
JP4640372B2 (en) * | 2007-04-24 | 2011-03-02 | トヨタ自動車株式会社 | Electric parking brake system |
JP4640389B2 (en) * | 2007-07-30 | 2011-03-02 | トヨタ自動車株式会社 | Pump control device and brake control device |
-
2010
- 2010-09-21 DE DE102010041099A patent/DE102010041099A1/en active Pending
-
2011
- 2011-09-19 FR FR1158283A patent/FR2964927A1/en not_active Withdrawn
- 2011-09-20 JP JP2011204923A patent/JP5911247B2/en active Active
- 2011-09-20 CN CN201110279398.3A patent/CN102407842B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN102407842A (en) | 2012-04-11 |
CN102407842B (en) | 2016-07-06 |
FR2964927A1 (en) | 2012-03-23 |
JP5911247B2 (en) | 2016-04-27 |
JP2012066814A (en) | 2012-04-05 |
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