WO2006056501A1 - Procede permettant d'empecher le recul de vehicules a moteur pourvus d'une boite automatique - Google Patents

Procede permettant d'empecher le recul de vehicules a moteur pourvus d'une boite automatique Download PDF

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Publication number
WO2006056501A1
WO2006056501A1 PCT/EP2005/054784 EP2005054784W WO2006056501A1 WO 2006056501 A1 WO2006056501 A1 WO 2006056501A1 EP 2005054784 W EP2005054784 W EP 2005054784W WO 2006056501 A1 WO2006056501 A1 WO 2006056501A1
Authority
WO
WIPO (PCT)
Prior art keywords
driver
inclination
intensity
parking
release
Prior art date
Application number
PCT/EP2005/054784
Other languages
German (de)
English (en)
Inventor
Toni Braeuer
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 WO2006056501A1 publication Critical patent/WO2006056501A1/fr

Links

Classifications

    • 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
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
    • B60T7/122—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger for locking of reverse movement
    • 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
    • B60T13/746—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 and mechanical transmission of the braking action

Definitions

  • the invention relates to a method and a device for avoiding the rollback of a vehicle equipped with an automatic transmission, and to a method and a device for warning the driver of a possibly upcoming rolling-back operation.
  • Such an operating state is present when the road gradient points in the direction of the future direction of travel of the vehicle and / or when the parking brake is actuated.
  • the invention relates to a method for preventing the rolling back of a vehicle equipped with an automatic transmission after releasing the parking stage in a (eg uphill) starting on a longitudinally inclined roadway, in which - the inclination of the roadway is determined and depending on the determined inclination of at least one Wheel brake of the vehicle driver independently a brake pressure is built up.
  • the driver-independent structure of the brake pressure is triggered by the release of the parking level and is independent of a present, for example by Wheel speed sensors detected rolling back of the vehicle.
  • the brake pressure is available even before the onset of the rolling motion.
  • An advantageous embodiment of the invention is characterized in that the structure of the driver-independent brake pressure takes place immediately after the release of the parking level of the automatic transmission by the driver.
  • the brake pressure can be reduced, for example via a ramp function, without significantly influencing the vehicle's rearward travel behavior, because of the vehicle
  • Transducer torque of the automatic transmission has exceeded a predetermined limit. This ensures that the brake pressure does not hinder the starting process after provision of a sufficiently large torque converter.
  • An advantageous embodiment of the invention is characterized in that the brake pressure built independently driver is degraded immediately after its construction or immediately after expiration of a time interval of predetermined length.
  • An advantageous embodiment of the invention is characterized in that the brake pressure is reduced in a ramp.
  • An advantageous embodiment of the invention is characterized in that the structure of the driver-independent brake pressure after a required to release the parking position brake pedal actuation by the driver and parallel or subsequent to the brake pedal actuation release the parking stage. Because only after the
  • An advantageous embodiment of the invention is characterized in that a warning information is output to the driver when the intensity of Brake pedal operation by the driver falls below a predetermined intensity limit.
  • a warning information is output to the driver when the intensity of Brake pedal operation by the driver falls below a predetermined intensity limit.
  • the driver can be warned visually, acoustically or haptically, for example, if the intensity of his brake pedal actuation (for example the operating angle of the brake pedal or the pre-pressure generated by the brake pedal actuation) is too weak for roll-back prevention after the parking level has been released.
  • An advantageous embodiment of the invention is characterized in that the intensity limit value is dependent on the determined inclination.
  • the invention comprises a method for warning the driver in one with a
  • a warning lamp or an audible warning signal can be switched on when the driver has engaged the parking stage P and actuates the brake.
  • the warning information is then turned off when the driver is out of the parking stage
  • the invention comprises a device for preventing the rewinding of a vehicle equipped with an automatic transmission after releasing the parking level at - A -
  • Detection means for detecting the released parking level, inclination determination means for determining the inclination of the roadway and - brake means with those depending on the determined by the inclination determination means inclination and detected by the detection means dissolved park immediately after releasing the parking level at least one wheel brake of the vehicle driver independently a brake pressure is built.
  • the brake pressure is built up when leaving the parking level. It is also one
  • Embodiment conceivable in which a constant pressure control of the vehicle brakes when the brake pedal is actuated (for example, on the state of the brake light switch recognizable) and parked parking stage takes place.
  • the invention comprises a driver warning device in a vehicle equipped with an automatic transmission with an engaged parking stage in a (for example, uphill) starting operation on a longitudinally inclined roadway, containing
  • Inclination determination means for determining the inclination of the roadway, - Intensticiansreskar, with which the intensity of a brake pedal operation carried out for releasing the parking level by the driver is determined and driver warning means, depending on which determined by the inclination determination inclination before releasing the parking level warning information to the driver is discharged when the determined by the intensity determining means intensity of the brake pedal operation by the driver a predetermined
  • FIG. 1 shows an active pressure build-up when shifting out of the drive stage P. If the converter torque is above a (in particular slope-dependent) threshold value, the driver-independent brake pressure is reduced again.
  • Fig. 2 shows a warning regarding the possible rolling back at a
  • FIG. 3 shows a first embodiment of the method according to the invention.
  • FIG. 4 shows a second embodiment of the method according to the invention.
  • FIG. 5 shows the structure of the device according to the invention.
  • the driver must depress the brake pedal, which is controlled by polling the status of the brake light switch. Since the brake light switch is activated even when the brake pedal is pressed down minimally, a minimum actuation of the brake pedal is sufficient.
  • the driver must perform a shift from P, e.g. to D.
  • the built-up brake pressure corresponds to the pressure required for holding the vehicle on the slope or is even greater.
  • print resolution can be done in the following two ways:
  • the pressure is released slowly (eg via a ramp function) after the end of the active pressure build-up, immediately or after a predetermined time lapse.
  • Fig. 1 three diagrams are shown.
  • the brake pressure required for the respective gradient can be determined, for example, from the output signal of an inclination sensor or longitudinal acceleration sensor present in the vehicle.
  • a warning against possible rewinding can take place. If the vehicle is on a slope, the gear P is engaged and the driver presses the brake pedal too weak, then a warning element to the driver, for example. visually or acoustically signaled that the vehicle could roll back after releasing the parking level.
  • the required brake pressure for the respective gradient can also be determined from the output signal of an inclination sensor present in the vehicle or
  • Longitudinal acceleration sensor can be determined.
  • the brake pedal is actuated by the driver when the parking stage P is engaged and a pre-pressure pvor is established.
  • warning information is sent to the
  • FIG. 3 The sequence of an embodiment of the method according to the invention is shown in FIG. After the start in block 300, the roadway inclination is determined in block 301. Subsequently, a query is made in block 302 as to whether the parking level has been released. If the answer is "no" (always marked “n” in FIGS. 3 and 4), then the input to block 302 branches back. If the answer is, yes "(in Fig. 3 and Fig. 4 always marked with "y"), the brake pressure p is then increased independently of the driver in block 303. Subsequently, a request is made in block 304 as to whether a brake pressure reduction condition is fulfilled If the brake pressure drop condition is not met, the system returns to the input of block 304. If the brake pressure drop condition is met, however, then in block 305 the brake pressure is released. In block 306, the process ends.
  • FIG. 4 Another embodiment of the method according to the invention is shown in FIG. 4.
  • the inclination of the roadway is determined in block 401.
  • the intensity of the brake pedal operation performed by the driver to release the parking level is determined in block 402.
  • the determined intensity of the brake pedal operation is compared with an intensity threshold.
  • warning information is output to the driver in block 404 and then branched back to the input of block 402. However, if the intensity of the brake pedal operation exceeds the intensity limit, then in block 405, for example, the change from the gear P to another gear can be released.
  • 501 detection means for detecting a released parking stage
  • 502 inclination determination means for determining the longitudinal inclination of the roadway
  • Intensity determination means for determining the intensity of the driver to
  • the output signals of the blocks 501, 502 and 503 are fed to a control unit 504 which, depending on this, performs a driver-independent actuation of the wheel brakes in block 505 or triggers a driver warning or driver information in block 506.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Control Of Transmission Device (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

Procédé permettant d'empêcher le recul d'un véhicule à moteur pourvu d'une boîte automatique après libération de la position de stationnement lors d'un processus de démarrage sur une voie de circulation longitudinalement en pente. Selon ledit procédé, la pente de la voie de circulation est déterminée et en fonction de la pente déterminée, une pression de freinage est produite, indépendamment du conducteur, dans au moins un frein de roue du véhicule.
PCT/EP2005/054784 2004-11-23 2005-09-23 Procede permettant d'empecher le recul de vehicules a moteur pourvus d'une boite automatique WO2006056501A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004056413.2 2004-11-23
DE102004056413.2A DE102004056413B4 (de) 2004-11-23 2004-11-23 Rückrollvermeidung von Fahrzeugen mit Automatikgetrieben

Publications (1)

Publication Number Publication Date
WO2006056501A1 true WO2006056501A1 (fr) 2006-06-01

Family

ID=35695677

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/054784 WO2006056501A1 (fr) 2004-11-23 2005-09-23 Procede permettant d'empecher le recul de vehicules a moteur pourvus d'une boite automatique

Country Status (2)

Country Link
DE (1) DE102004056413B4 (fr)
WO (1) WO2006056501A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007714A1 (de) * 2007-03-13 2008-09-18 Continental Teves Ag & Co. Ohg Verfahren zur Regelung des Druckes in einem elektronisch gesteuerten Bremssystem und elektronisches Bremssystem
US8556776B2 (en) 2010-04-22 2013-10-15 Zf Friedrichshafen Ag Method for providing assistance to a driver of a vehicle during a starting process
CN111434541A (zh) * 2019-01-11 2020-07-21 丰田自动车株式会社 驾驶支援系统

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017528A1 (de) 2011-04-26 2012-10-31 Robert Bosch Gmbh Verfahren zum automatischen Halten eines Kraftfahrzuegs im Stillstand
DE102011080775A1 (de) * 2011-08-10 2013-02-14 Robert Bosch Gmbh Verfahren und Vorrichtung zum automatischen Halten eines Kraftfahrzeugs im Stillstand
US20150323069A1 (en) * 2014-05-09 2015-11-12 Caterpillar Sarl Braking System

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827024A (en) * 1972-06-12 1974-07-30 Caterpillar Tractor Co Motion alarm for vehicles
DE4332459A1 (de) * 1993-09-23 1995-03-30 Bayerische Motoren Werke Ag Steuervorrichtung für eine Hydraulikbremsanlage für ein Kraftfahrzeug mit Brennkraftmaschine und Automatikgetriebe
DE19711515A1 (de) * 1996-03-27 1997-10-02 Aisin Aw Co Steuersystem für Automatikgetriebe
DE10041444A1 (de) * 2000-08-23 2002-03-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung von Radbremsen eines Fahrzeugs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507330A1 (de) 1985-03-01 1986-09-04 Lucas Industries P.L.C., Birmingham, West Midlands Hydraulische bremsanlage mit anfahrhilfe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3827024A (en) * 1972-06-12 1974-07-30 Caterpillar Tractor Co Motion alarm for vehicles
DE4332459A1 (de) * 1993-09-23 1995-03-30 Bayerische Motoren Werke Ag Steuervorrichtung für eine Hydraulikbremsanlage für ein Kraftfahrzeug mit Brennkraftmaschine und Automatikgetriebe
DE19711515A1 (de) * 1996-03-27 1997-10-02 Aisin Aw Co Steuersystem für Automatikgetriebe
DE10041444A1 (de) * 2000-08-23 2002-03-07 Bosch Gmbh Robert Verfahren und Vorrichtung zur Steuerung von Radbremsen eines Fahrzeugs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007714A1 (de) * 2007-03-13 2008-09-18 Continental Teves Ag & Co. Ohg Verfahren zur Regelung des Druckes in einem elektronisch gesteuerten Bremssystem und elektronisches Bremssystem
DE102008007714B4 (de) * 2007-03-13 2021-01-28 Continental Teves Ag & Co. Ohg Verfahren zur Regelung des Druckes in einem elektronisch gesteuerten Bremssystem und elektronisches Bremssystem
US8556776B2 (en) 2010-04-22 2013-10-15 Zf Friedrichshafen Ag Method for providing assistance to a driver of a vehicle during a starting process
CN111434541A (zh) * 2019-01-11 2020-07-21 丰田自动车株式会社 驾驶支援系统

Also Published As

Publication number Publication date
DE102004056413B4 (de) 2019-01-10
DE102004056413A1 (de) 2006-05-24

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