DE102005022917A1 - automotive brake system has two circuits linked by CS-valve triggered by electronic skid detector - Google Patents
automotive brake system has two circuits linked by CS-valve triggered by electronic skid detector Download PDFInfo
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- DE102005022917A1 DE102005022917A1 DE102005022917A DE102005022917A DE102005022917A1 DE 102005022917 A1 DE102005022917 A1 DE 102005022917A1 DE 102005022917 A DE102005022917 A DE 102005022917A DE 102005022917 A DE102005022917 A DE 102005022917A DE 102005022917 A1 DE102005022917 A1 DE 102005022917A1
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- 230000002123 temporal effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
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- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- 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
- B60T8/44—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
- B60T8/441—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems using hydraulic boosters
- B60T8/442—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 co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems using hydraulic boosters the booster being a fluid return pump, e.g. in combination with a brake pedal force booster
-
- 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
-
- 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
-
- 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
- B60T8/48—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 connecting the brake actuator to an alternative or additional source of fluid pressure, e.g. traction control systems
- B60T8/4809—Traction control, stability control, using both the wheel brakes and other automatic braking 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
- B60T8/92—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Verbesserung einer Bremsenregelung einer Fahrzeugbremsanlage mit zwei Bremskreisen, die ein zwischen den Bremskreisen angeordnetes sog. "CS-Ventil" aufweist, über welches CS-Ventil beide Bremskreise miteinander verbindbar sind.The The invention relates to a method for improving brake control a vehicle brake system with two brake circuits, one between The brake circuits arranged so-called. "CS-valve" has, via which CS-valve both brake circuits can be connected to each other.
Bei Fahrzeugen mit aktiven Geschwindigkeitsregelsystemen und/oder bei Fahrzeugen mit einem Bremssystem mit hydraulischer Bremskraftverstärkung (OHB-V-Systemen) wird in den Bremskreisen volumenkonstant aktiv ein hydraulischer Druck (Druck oder Bremsdruck) aufgebaut.at Vehicles with active cruise control systems and / or at Vehicles with a brake system with hydraulic brake boosters (OHB-V systems) In the brake circuits volume constant active is a hydraulic Pressure (pressure or brake pressure) built up.
Erfolgt der Druckaufbau nur über einen Tabndemhauptbremszyliunder (THZ), d.h. durch den Fahrer, ist dieser Druck für beide Bremskreise in der Regel näherungsweise gleich. Denn über den Schwimmkolben im THZ erfolgt ein Ausgleich des Drucks in den beiden Bremskreisen.He follows the pressure build up only over a Tabndemhauptbremszyliunder (THZ), i. by the driver, is this pressure for both brake circuits usually approximate equal. Because about the floating piston in the THZ is a compensation of the pressure in the two brake circuits.
Bedingt durch unterschiedliche Volumenaufnahmen, welche z.B. durch "Rollback" (d.h. durch die Fahrweise bedingte unterschiedlich weit zurückgeschobene Bremskolben, wie durch eine dynamische Kurvenfahrt), "Schrägverschleiß" (d.h. nicht parallel zur Trägerplatte der Bremsbeläge verschliessene Bremsbeläge) oder eine "schwarz/weiß Aufteilung" der Bremsanlage verursacht sind können, können durch den volumenkonstanten Druckaufbau über die Pumpe verschiedene Druckniveaus in den Bremskreisen entstehen.conditioned by different volume scans, e.g. by "rollback" (i.e. conditional differently pushed back brake pistons, such as by dynamic cornering), "oblique wear" (i.e., not parallel to support plate the brake pads closed brake pads) or a "black and white split" of the brake system can be caused can through the volume constant pressure build-up via the pump different Pressure levels in the brake circuits arise.
Bei Fahrzeugen mit diagonal aufgeteilten Bremskreisen kann die unterschiedliche Volumenaufnahme zum Schief ziehen und bei Fahrzeugen mit schwarz/weiß aufgeteilten Bremskreisen kann die unterschiedliche Volumenaufnahme zu einer ungewollten Bremskraftverlagerung auf die Hinterachse führen.at Vehicles with diagonally split brake circuits may be the different Volume intake to skew and divided on vehicles with black and white Brake circuits can change the volume of volume to one unintentional braking force displacement lead to the rear axle.
Aktive Geschwindigkeitsregelsysteme sind insbesondere Abstands- und Folgeregelungssysteme, hier und im folgenden auch mit der Abkürzung "ACC-Systeme" bzw. "ACC-Regelung" bezeichnet. Sie werden zunehmend an Bedeutung gewinnen, da sie entscheidend zum Fahrkomfort beitragen.active Speed control systems are in particular distance and sequence control systems, here and below also referred to by the abbreviation "ACC systems" or "ACC control". They are increasingly on Gain importance because they contribute significantly to ride comfort.
Bei den ACC-Systemen bzw, der ACC-Regelung wird eine vom Fahrer vorgegebene Wunschgeschwindigkeit automatisch eingeregelt, wobei das Fahrzeug automatisch beschleunigt oder abgebremst wird unter Berücksichtigung eines erforderlichen Mindestabstands zu einem voraus fahrenden Fahrzeug, das durch ein Sensorsystem, meist ein Radarsystem, erfasst wird.at the ACC systems or, the ACC control is given by the driver Desired speed automatically adjusted, the vehicle automatically accelerated or decelerated taking into account a required minimum distance to a vehicle in front, which is detected by a sensor system, usually a radar system.
Da diese System im Sinne einer Assistenzfunktion eine Komfortverbesserung für den Fahrer bezwecken, wird hier ein hoher Regelkomfort angestrebt.There these systems in terms of an assistance function a comfort improvement for the The aim of drivers is to achieve a high level of control comfort.
Bei den Bremssystemen mit aktiver hydraulischer Bremskraftunterstützung wird eine mangelnde Unterdruckversorgung eines Boosters zumindest ausgeglichen durch Erzeugung hydraulischen Drucks. Bekannte Systeme sind z.B. Systeme, bei denen ein zusätzlicher Bremsdruck mittels einer hydraulischen ABS-Rückförderpumpe (OHB-V-System) erzeugt wird.at the brake systems with active hydraulic brake assist a lack of negative pressure supply of a booster at least balanced by generating hydraulic pressure. Known systems are e.g. Systems where an additional Brake pressure generated by means of a hydraulic ABS return pump (OHB-V system) becomes.
Ferner sind bei diesen Bremssystemen meist analogisierte Ventile (TV's) vorgesehen, um den Bremsdruck zu regeln.Further In these brake systems usually analogized valves (TV's) are provided to the To regulate brake pressure.
Auch durch Ungenauigkeiten in der Drucksregelung über diese Ventile können verschiedene Druckniveaus in den Bremskreisen entstehen. Dies ist insbesondere dann denkbar, wenn nicht sämtliche Drücke im Bremssystem mittels Sensoren überwacht werden.Also Due to inaccuracies in the pressure control via these valves can be different pressure levels arise in the brake circuits. This is especially conceivable if not all pressures in the brake system be monitored by sensors.
Aufgabe der Erfindung ist es, die bekannten Systeme zu verbessern und zu verhindern, dass verschiedene Druckniveaus in den Bremskreisen entstehen.task The invention is to improve the known systems and to prevent different pressure levels from being created in the brake circuits.
Die Aufgabe wird dadurch gelöst, dass es bei einem Verfahren zur Verbesserung einer Bremsenregelung einer Fahrzeugbremsanlage mit zwei Bremskreisen, die ein zwischen den Bremskreisen angeordnetes sog. "CS-Ventil" (Circuit-Separation-Ventil) aufweist, über welches CS-Ventil beide Bremskreise miteinander verbindbar sind, vorgesehen ist, das CS-Ventil bei aktiven Druckaufbauten in beiden Bremskreisen zwecks Verbindung der beiden Bremskreise zumindest zeitweise geöffnet wird, wenn ein Schief ziehen des Fahrzeugs erkannt wird oder als erkannt gilt und/oder bei dem das CS-Ventil bei jedem aktivem Druckaufbau, wie ein Druckaufbau nach Maßgabe eines OHB-V-Systems oder ein Druckaufbau bei einem ACC-Eingriff, zwecks Verbindung der beiden Bremskreise zumindest zeitweise geöffnet wird.The Task is solved by that it is in a method of improving brake control a vehicle brake system with two brake circuits, one between the brake circuits arranged so-called. "CS-valve" (Circuit Separation valve) has, over which CS valve both brake circuits are connected to each other, provided is, the CS valve with active pressure buildups in both brake circuits is opened at least temporarily to connect the two brake circuits, if a crooked pull of the vehicle is detected or detected applies and / or in which the CS valve with each active pressure build-up, like a pressure build-up according to specification an OHB-V system or a pressure build-up in an ACC intervention, for the purpose of connecting the two brake circuits is opened at least temporarily.
Nach der Erfindung ist es vorgesehen, dass eine Ansteuerung des CS-Ventils während einem gesamten aktiven Druckaufbauzeitraum (Aufbaumodulation) vorgenommen wird und/oder dass eine Ansteuerung des CS-Ventils aber in gepulsten Form vorgenommen wird, wobei die Regelungspulse in ihrer zeitlichen Abfolge so erzeugt werden, dass nur eine geringe Druckdifferenz zwischen den beiden Bremskreisen entsteht.To The invention provides that a control of the CS valve while an entire active pressure build-up period (build-up modulation) is and / or that a control of the CS valve but in pulsed Form is made, the control pulses in their temporal Sequence can be generated so that only a small pressure difference arises between the two brake circuits.
Nach der Erfindung ist es vorgesehen, dass die Ansteuerung des CS-Ventils auch bei einem Druckabbau durchgeführt wird.To The invention provides that the control of the CS valve also carried out at a pressure reduction.
Nach der Erfindung ist es vorgesehen, dass das CS-Ventil ein analogisiertes oder analoges Ventil ist, bei dem zwischen den Stellungen "auf" und "zu" des Ventils sehr viele Zwischenstellungen einstellbar sind, die eine analoge oder quasi analoge ("analogisierte") Regelung des Druckunterschieds zwischen den beiden Seiten des Ventils ermöglichen.To The invention provides that the CS valve is an analogized or analogue valve is, in which between the positions "on" and "to" the valve very Many intermediate positions are adjustable, which are analog or quasi analog ("analogized") regulation of the pressure difference between the two sides of the valve.
Die Erfindung wird nun anhand eines Ausführungsbeispiels näher erläutet.The Invention will now be explained in more detail with reference to an embodiment.
Ein Kraftfahrzeug mit zwei Bremskreisen weist ein zwischen den Bremskreisen angeordnetes sog. "CS-Ventil" auf. Über das CS-Ventil sind beide Bremskreise miteinander verbindbar. Mit diesem Ventil ist daher ein Druckausgleich zwischen den Bremskreisen möglich.One Motor vehicle with two brake circuits points between the brake circuits arranged so-called. "CS valve" on. About the CS valve, both brake circuits can be connected together. With this valve Therefore, a pressure equalization between the brake circuits is possible.
Erfindungsgemäß wird das CS-Ventil bei aktiven Druckaufbauten in beiden Bremskreisen geöffnet, wenn die aus Bremsenregelungssystem, insbesondere ESP, bekannten Algorithmen ein Schief ziehen detektieren.According to the invention CS valve open with active pressure assemblies in both brake circuits when the algorithms known from brake control system, in particular ESP detect a crooked draw.
Dies hat den Vorteil, dass der Fahrer den Eingriff über das CS-Ventil nicht bemerken kann. Denn der Druckausgleich geschieht nicht auf der THZ-Seite eines Trennventils (TV), welches zwischen dem THZ und den Radbremsen angeordnet ist.This has the advantage that the driver does not notice the intervention via the CS valve can. Because the pressure equalization does not happen on the THZ side a separating valve (TV), which between the THZ and the wheel brakes is arranged.
Es erfordert auch keinen Lauf der ABS-Rückförderpumpe.It also does not require a run of the ABS return pump.
Ein weiterer Vorteil ist, dass ein Schief ziehen in dieser Situation, wenn es von unterschiedlichen Bremsdrücken hervorgerufen wurde, nicht durch Öffnen des Auslassventils kompensiert wird. Es wird somit keine einseitige Befüllung eines Niederdruckspeichers (NDS) vorgenommen.One another advantage is that a crooked draw in this situation, if it was caused by different brake pressures, not by opening the Exhaust valve is compensated. It will not be one-sided filling a low-pressure accumulator (NDS) made.
Um dem Schief ziehen entgegenzuwirken, kann das CS-Ventil aber auch bei jedem aktiven Druckaufbau, wie ein Druckaufbau nach Maßgabe eines OHB-V-Systems oder nach Maßgabe eines ACC-Systems, geöffnet werden.Around to counteract the skew, but the CS valve can also at any active pressure build-up, such as pressure build-up according to a OHB-V-Systems or as required an ACC system, opened become.
Die Ansteuerung kann während der gesamten aktiven Aufbaumodulation vorgenommen werden, oder aber in "gepulstem Betrieb", wobei die Pulse von der zeitlichen Abfolge so generiert werden, dass nur geringe Druckdifferenzen entstehen können.The Control can be during the entire active construction modulation are made, or in "pulsed mode", where the pulses be generated by the time sequence so that only small Pressure differences can arise.
Um ggf. vorliegende Schalttoleranzen, die durch Fertigung, Temperatur und Alterung bedingt sein können, bei ggf. vorhandenen analogisiert betriebenen Trennventilen (TVs) ebenfalls auszugleichen, wird das beschriebene Verfahren bei einem Abbau des Drucks ebenfalls ausgeführt.Around possibly existing switching tolerances due to manufacturing, temperature and aging may be conditional in the case of existing analogised isolation valves (TVs) also compensate, the method described in a degradation the pressure also executed.
Als besonders komfortable Ausführungsvariante ist eine Ausführung des Bremssystems mit einem analogisiert zu betreibenden CS-Ventil vorgesehen. Dann kann ein ggf. durchzuführender Druckausgleich nicht sprunghaft (gepulst), sondern vielmehr kontinuierlich durchgeführt werden.When particularly comfortable design variant is an execution of the brake system with an analogized to be operated CS valve intended. Then, if necessary, can not be performed pressure equalization jumpy (pulsed), but rather be carried out continuously.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005022917.4A DE102005022917B4 (en) | 2004-05-25 | 2005-05-19 | Method for improving a brake control |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004025584.9 | 2004-05-25 | ||
| DE102004025584 | 2004-05-25 | ||
| DE102005022917.4A DE102005022917B4 (en) | 2004-05-25 | 2005-05-19 | Method for improving a brake control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE102005022917A1 true DE102005022917A1 (en) | 2005-12-22 |
| DE102005022917B4 DE102005022917B4 (en) | 2021-05-12 |
Family
ID=35433347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102005022917.4A Expired - Fee Related DE102005022917B4 (en) | 2004-05-25 | 2005-05-19 | Method for improving a brake control |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102005022917B4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006051261A1 (en) * | 2006-05-17 | 2007-11-22 | Continental Teves Ag & Co. Ohg | Method for determining braking force differences in braking control system of motor vehicle, requires examining wheel speeds via wheel revs sensors for discrete wheels |
| DE102011007510A1 (en) | 2011-04-15 | 2012-10-18 | Continental Teves Ag & Co. Ohg | Method for automatic speed control of motor vehicle, involves adjusting brake pressure in one of brake circuits by adjusting valve characteristic of brake pressure-regulating valve, to correct deviation from desired driving course |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3810446A1 (en) * | 1988-03-26 | 1989-10-12 | Bosch Gmbh Robert | BRAKE SYSTEM |
| DE10028092A1 (en) * | 2000-06-07 | 2001-12-13 | Lucas Varity Gmbh | Vehicle braking system with 1st and 2nd brake circuit which respectively have separate operable pressure source and at least 1 wheel brake and pressure equalising unit with which 1st and 2nd brake circuits are connected |
| DE10028094A1 (en) * | 2000-06-07 | 2001-12-13 | Lucas Varity Gmbh | Vehicle braking system with 1st and 2nd brake circuit which respectively have separately operated pressure source and wheel brake and pressure equalizing unit which connects both circuits |
-
2005
- 2005-05-19 DE DE102005022917.4A patent/DE102005022917B4/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006051261A1 (en) * | 2006-05-17 | 2007-11-22 | Continental Teves Ag & Co. Ohg | Method for determining braking force differences in braking control system of motor vehicle, requires examining wheel speeds via wheel revs sensors for discrete wheels |
| DE102011007510A1 (en) | 2011-04-15 | 2012-10-18 | Continental Teves Ag & Co. Ohg | Method for automatic speed control of motor vehicle, involves adjusting brake pressure in one of brake circuits by adjusting valve characteristic of brake pressure-regulating valve, to correct deviation from desired driving course |
| DE102011007510B4 (en) | 2011-04-15 | 2022-11-03 | Continental Automotive Technologies GmbH | Automatic cruise control method for a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005022917B4 (en) | 2021-05-12 |
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