WO2002042137A1 - Verfahren zum betreiben eines elektronisch regelbaren bremsbetätigungssystems - Google Patents
Verfahren zum betreiben eines elektronisch regelbaren bremsbetätigungssystems Download PDFInfo
- Publication number
- WO2002042137A1 WO2002042137A1 PCT/EP2001/012383 EP0112383W WO0242137A1 WO 2002042137 A1 WO2002042137 A1 WO 2002042137A1 EP 0112383 W EP0112383 W EP 0112383W WO 0242137 A1 WO0242137 A1 WO 0242137A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wheel brakes
- pressure
- wheel
- brake
- hydraulic
- Prior art date
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
- 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
- B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
- B60T8/40—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 having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4072—Systems in which a driver input signal is used as a control signal for the additional fluid circuit which is normally used for braking
- B60T8/4081—Systems with stroke simulating devices for driver input
-
- 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
- B60T8/34—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 having a fluid pressure regulator responsive to a speed condition
- B60T8/343—Systems characterised by their lay-out
- B60T8/344—Hydraulic systems
- B60T8/348—4 Channel 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
- 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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- 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
- B60T8/88—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/92—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action
- B60T8/94—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 with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means automatically taking corrective action on a fluid pressure regulator
-
- 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
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/404—Brake-by-wire or X-by-wire failsafe
-
- 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
- B60T2270/82—Brake-by-Wire, EHB
Definitions
- the invention relates to a method for operating an electronically controllable brake actuation system for motor vehicles, with a pressureless pressure medium reservoir, with at least one pressure source that can be controlled by means of an electronic control unit, the pressure of which can be applied to the vehicle's wheel brakes, with a device for detecting a driver's deceleration request and with means for detection a fault condition, as well as with valve devices upstream of the wheel brakes, which connect the wheel brakes either to the pressure source or to the pressure medium reservoir, an electrohydraulic normal actuation mode and a hydraulic fallback level being provided for a fault condition.
- An electronically controllable brake actuation system is known, for example, from the specialist article "Electrohydraulic Brake System - The First Approach to Brake-By -ire Technology", SAE Paper 960991. Because a vehicle driver in electrohydraulic brake actuation systems (EMS) is decoupled from the generation of the braking force and the braking request is implemented to a certain extent “by wire ⁇ ”, a setpoint generator with a simulator is used, which simulates the pedal feel as a result of actuation, comparable to the reaction of a conventional braking system.
- the setpoint device also has a master cylinder, which allows hydraulic emergency braking operation in the event of defective electronics by means of direct actuation of the wheel brakes (so-called hydraulic fallback level).
- isolation valves are closed to block direct hydraulic grip of the master cylinder in the direction of the wheel brakes. While the brake pressure build-up is initiated electrohydraulically, the driver of the vehicle experiences a reaction force as a result of a volume shift into the simulator that corresponds to the actuation movement.
- a method for controlling an electrohydraulic brake system with different, individually coordinated emergency brake operating states is evident from DE 198 07 366 AI. After detection and localization of certain faults, a system part shutdown takes place, which is individually matched to the detected fault condition. If the EMS function of a particular one If the wheel is disturbed, 3-wheel EMS operation takes place, with only the malfunctioning vehicle wheel being braked hydraulically in muscle power mode. In order to counter a tendency to skid of a vehicle braked in this way, an additional yaw torque limitation is proposed. Depending on the fault and system status, the brake actuation system changes into different fallback levels and brings about a gradual adjustment of the system functionalities.
- This object is achieved according to the invention in that when a driver deceleration request is recognized and when an error state is detected, a first, predetermined fallback level with a paired actuation of wheel brakes on different axles is provided.
- the invention is associated with the advantage that the hardware expenditure required for data processing can be reduced because a predetermined default fallback level is provided. An error localization or individually tailored fallback level is not brought about. The amount of data to be processed per unit of time is reduced.
- a first pair of wheel brakes is actuated electro-hydraulically, drastically, and that a second pair of wheel brakes is actuated exclusively hydraulically, in the first fallback level, a direct connection between a master cylinder and the wheel brakes, and by a hydraulic The wheel brakes of one axle are separated.
- This hybrid actuation methodology compared to a complete system shutdown (hydraulic fallback level on all four wheels), enables the vehicle to improve its deceleration behavior. This is because, in addition to servo support, the electrohydraulic actuation mode enables, for example, better compensation of imported gas components.
- the pressure medium volume in the master cylinder is fully available in the fault state for the pressure increase in the two other, purely hydraulically actuated, wheel brakes and can be used to generate correspondingly increased braking forces. Because the hydraulic behavior of two wheel brakes changes the pedal behavior in the sense of increased actuation forces, the driver experiences a motivation to repair the braking system, which is not the case with a 3-wheel EMS.
- a right wheel brake of a front axle is bundled electrohydraulically actuated with a left wheel brake of a rear axle
- a left wheel brake of a front axle is hydraulically actuated bundled with a right wheel brake of a rear axle.
- a reverse assignment is also conceivable.
- a second fallback level with only hydraulic actuation of all wheel brakes is provided, the wheel brakes for the hydraulic actuation being bundled by axles, a direct connection being made between the master cylinder and the wheel brakes, and hydraulic pressure compensation between the wheel brakes of one axle is present.
- the second fallback level always occurs when the first fallback level is insufficient, for example in the event of a complete breakdown of the electrical system.
- a pressure compensation valve is provided for the pressure compensation between the wheel brakes of an axle, which is controlled in the second fall-back level in an electroless open position.
- the pressure compensation valve thus automatically falls, as it were, into the state of the second hydraulic fallback level.
- Fig. 1 shows a brake actuation system in the second fallback level (currentless switching positions of all valve devices),
- Fig. 2 shows a brake actuation system as in Fig. 1 but in the first fallback level.
- An electronically controllable brake actuation system u - includes a two-circuit master cylinder or tandem master cylinder 2 which can be actuated by means of an actuation pedal 1, which cooperates with a simulator 3 and has two separate pressure chambers which are connected to a pressureless pressure medium reservoir 4.
- Wheel brakes 6, 7 assigned to the front axle, for example, are connected to a first pressure chamber by means of a lockable first hydraulic line 5, into which a pressure sensor Si is inserted.
- the wheel brakes of the front axle and the wheel brakes of the rear axle are in the second fall level shown in ;
- a separate brake circuit can be operated in bundles.
- the line 5 is shut off for an electrohydraulic normal braking process by means of a first isolating valve 8, while an electromagnetically actuated, preferably normally open (SO) pressure compensating valve 10 is inserted in a line section 9 connected between the wheel brakes 6, 7, which, when closed, has a wheel-specific brake pressure control allows.
- the second pressure chamber of the master brake cylinder 2 can be connected via a second hydraulic line 12, which can be shut off by means of a second separating valve 11, to a pair of wheel brakes 13, 14 assigned to the rear axle.
- An electromagnetically operable, preferably normally open (SO) pressure compensation valve 16 is inserted in a line section 15 connected between the wheel brakes 13, 14.
- the circuit structure and the function of the rear axle brake circuit is identical to that of the front axle circuit explained in the above description.
- a motor-pump unit serving as a pressure source 20 is provided with a high-pressure accumulator 21, which in turn consists of a pump 23 driven by an electric motor 22, preferably with a plurality of conveying devices connected in parallel, and one of the pump 23 parallel pressure relief valve 24 exists.
- the suction side of the pump 23 is connected to the pressure medium reservoir 4 mentioned via a check valve.
- the hydraulic pressure applied by the pump 23 can be monitored by a pressure sensor S 2 .
- a third hydraulic line 25 connects the high-pressure accumulator 21 to the input connections of two electromagnetically controllable, normally closed 2/2-way valves 17, 18, which are connected upstream of the wheel brakes 6 and 7 as inlet valves.
- the wheel brakes 6, 7 are each connected via an electromagnetically controllable, normally closed 2/2-way valve or outlet valve 26, 27 to a fourth hydraulic line 28, which on the other hand is connected to the unpressurized pressure medium reservoir 4.
- the in The hydraulic pressure prevailing in the wheel brakes 6, 7 is determined with the aid of one pressure sensor 29, 30 each.
- For the wheel brakes 13, 14 of the rear axle, four 2/2 way valves 19, 35; 36, 37 are provided as inlet and outlet valves, which need not be explained in more detail.
- ECU electronice control unit 31
- actuation travel sensor 32 which interacts with the actuation pedal 1 and the pressure sensor Si mentioned are supplied and enable driver deceleration request detection.
- other means for example a force sensor that senses the actuating force on the actuating pedal 1, can also be used to detect the driver's deceleration request.
- the output signals of the pressure sensors 29, 30 and the output signals of wheel sensors 33, 34 which are only indicated schematically, are supplied to the electronic control unit 31 as further input variables.
- a fault condition of the brake actuation system can be recognized in the ECU.
- the error conditions and the methodology for recognizing them can be of a wide variety of types. As an example, reference is made to the disclosure content of DE 100 60 225 AI at this point.
- a first drop-down level that is logically arranged in front of the second fall-back level is provided, which allows a paired actuation of wheel brakes 6, 7, 13, 14 of different axles without precise error localization is required.
- the wheel brakes 6, 7, 13, 14 are actuated in pairs, in different ways, in that one pair of wheel brakes 7, 14 is still operated electro-hydraulically and the other pair of wheel brakes 6, 13 is actuated directly hydraulically. This is done by controlling the isolating valves 8, 11 in the open state and the pressure compensation valves 10, 16 in the closed state.
- the wheel brakes 6, 13 arranged diagonally to one another in the direction of travel front left wheel with right rear wheel brake
- Regulated actuation of the other pair of wheel brakes 7.14 takes place in an electro-hydraulic way by controlled opening and closing of 2/2 directional valves 18, 19, 27, 37 and a pressurization as a result of high-pressure accumulator 21 or pump 23.
- hybrid brake actuation takes place through the use of purely hydraulic means and through the simultaneous use of electro-hydraulic means, these means being evenly distributed over the number of wheel brakes, so that the effort for operating the brake actuation system is reduced.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002544290A JP2004514582A (ja) | 2000-11-21 | 2001-10-26 | 電子制御可能なブレーキ操作装置の運転方法 |
EP01997429A EP1339581A1 (de) | 2000-11-21 | 2001-10-26 | Verfahren zum betreiben eines elektronisch regelbaren bremsbetätigungssystems |
US10/432,342 US20040100146A1 (en) | 2000-11-21 | 2001-10-26 | Method for operating an electronically adjustable brake actuation system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10057815.2 | 2000-11-21 | ||
DE10057815 | 2000-11-21 | ||
DE10147194.7 | 2001-09-25 | ||
DE10147194A DE10147194A1 (de) | 2000-11-21 | 2001-09-25 | Verfahren zum Betreiben eines elektronisch regelbaren Bremsbetätigungssystems |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002042137A1 true WO2002042137A1 (de) | 2002-05-30 |
Family
ID=26007733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/012383 WO2002042137A1 (de) | 2000-11-21 | 2001-10-26 | Verfahren zum betreiben eines elektronisch regelbaren bremsbetätigungssystems |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1339581A1 (de) |
JP (1) | JP2004514582A (de) |
WO (1) | WO2002042137A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1339582A1 (de) * | 2000-11-27 | 2003-09-03 | Continental Teves AG & Co. oHG | Verfahren zur steuerung einer elektrohydraulischen bremsanlage |
WO2004005096A1 (de) * | 2002-07-05 | 2004-01-15 | Continental Teves Ag & Co. Ohg | Verfahren zum sicherstellen oder aufrechterhalten der funktion eines komplexen sicherheitskritischen gesamtsystems |
JP2006522708A (ja) * | 2003-04-10 | 2006-10-05 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 油圧車両ブレーキシステム |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486281A1 (de) * | 1990-11-13 | 1992-05-20 | Honda Giken Kogyo Kabushiki Kaisha | Kraftfahrzeugbremssystem mit Ausfallsicherung |
DE19835881A1 (de) * | 1997-08-07 | 1999-04-15 | Nissan Motor | Fahrzeugbrems-Steuerverfahren und Steuergerät |
EP0937620A2 (de) * | 1998-02-21 | 1999-08-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Bremsanlage |
DE19807366A1 (de) | 1998-02-21 | 1999-08-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Bremsanlage |
EP0995655A1 (de) * | 1997-07-10 | 2000-04-26 | Toyota Jidosha Kabushiki Kaisha | Bremssystem für fahrzeuge |
EP1004494A2 (de) * | 1998-11-27 | 2000-05-31 | LUCAS INDUSTRIES public limited company | Erkennung und Identifizierung von Drucksensorfehlern in elektrohydraulischen Bremsanlagen |
WO2001072568A1 (de) * | 2000-03-27 | 2001-10-04 | Continental Teves Ag & Co. Ohg | Verfahren zur überwachung der notbremsfähigkeit einer elektrohydraulischen bremsanlage |
DE10060225A1 (de) * | 2000-03-27 | 2001-10-31 | Continental Teves Ag & Co Ohg | Verfahren zur Überwachung der Notbremsfähigkeit einer elektrohydraulischen Bremsanlage |
-
2001
- 2001-10-26 WO PCT/EP2001/012383 patent/WO2002042137A1/de not_active Application Discontinuation
- 2001-10-26 EP EP01997429A patent/EP1339581A1/de not_active Withdrawn
- 2001-10-26 JP JP2002544290A patent/JP2004514582A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0486281A1 (de) * | 1990-11-13 | 1992-05-20 | Honda Giken Kogyo Kabushiki Kaisha | Kraftfahrzeugbremssystem mit Ausfallsicherung |
EP0995655A1 (de) * | 1997-07-10 | 2000-04-26 | Toyota Jidosha Kabushiki Kaisha | Bremssystem für fahrzeuge |
DE19835881A1 (de) * | 1997-08-07 | 1999-04-15 | Nissan Motor | Fahrzeugbrems-Steuerverfahren und Steuergerät |
EP0937620A2 (de) * | 1998-02-21 | 1999-08-25 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Steuerung einer Bremsanlage |
DE19807366A1 (de) | 1998-02-21 | 1999-08-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Steuerung einer Bremsanlage |
EP1004494A2 (de) * | 1998-11-27 | 2000-05-31 | LUCAS INDUSTRIES public limited company | Erkennung und Identifizierung von Drucksensorfehlern in elektrohydraulischen Bremsanlagen |
WO2001072568A1 (de) * | 2000-03-27 | 2001-10-04 | Continental Teves Ag & Co. Ohg | Verfahren zur überwachung der notbremsfähigkeit einer elektrohydraulischen bremsanlage |
DE10060225A1 (de) * | 2000-03-27 | 2001-10-31 | Continental Teves Ag & Co Ohg | Verfahren zur Überwachung der Notbremsfähigkeit einer elektrohydraulischen Bremsanlage |
Non-Patent Citations (1)
Title |
---|
JONNER WOLF-DIETER ET AL: "Electrohydraulic Brake System - The First Approach to Brake-By-Wire Technology", SAE TRANSACTIONS, SOCIETY OF AUTOMOTIVE ENGINEERS, INC., WARRENDALE, PA, US, vol. 105, no. 6, 1996, pages 1368 - 1375, XP002103413, ISSN: 0096-736X * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1339582A1 (de) * | 2000-11-27 | 2003-09-03 | Continental Teves AG & Co. oHG | Verfahren zur steuerung einer elektrohydraulischen bremsanlage |
WO2004005096A1 (de) * | 2002-07-05 | 2004-01-15 | Continental Teves Ag & Co. Ohg | Verfahren zum sicherstellen oder aufrechterhalten der funktion eines komplexen sicherheitskritischen gesamtsystems |
JP2006522708A (ja) * | 2003-04-10 | 2006-10-05 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 油圧車両ブレーキシステム |
JP4660468B2 (ja) * | 2003-04-10 | 2011-03-30 | コンティネンタル・テーベス・アクチエンゲゼルシヤフト・ウント・コンパニー・オッフェネ・ハンデルスゲゼルシヤフト | 油圧車両ブレーキシステム |
Also Published As
Publication number | Publication date |
---|---|
JP2004514582A (ja) | 2004-05-20 |
EP1339581A1 (de) | 2003-09-03 |
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