CN100482505C - Method for operation of a braking system for a motor vehicle - Google Patents
Method for operation of a braking system for a motor vehicle Download PDFInfo
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- CN100482505C CN100482505C CNB2005800262041A CN200580026204A CN100482505C CN 100482505 C CN100482505 C CN 100482505C CN B2005800262041 A CNB2005800262041 A CN B2005800262041A CN 200580026204 A CN200580026204 A CN 200580026204A CN 100482505 C CN100482505 C CN 100482505C
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- 238000000034 method Methods 0.000 title claims abstract description 82
- 230000008569 process Effects 0.000 claims abstract description 27
- 230000001419 dependent effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 230000001133 acceleration Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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Abstract
The invention relates to a method for operation of an electromechanically-operated parking brake for motor vehicles with a drive motor provided with a mechanical manual gearbox, essentially comprising an operating element, an electronic controller, provided with wheel rotational speed values from wheel rotational speed sensors, at least one unit for generation of an application force and braking devices applied by the unit on at least one axle, whereby the electronic controller operates the unit, after recognition of a starting procedure for the motor vehicle, in the manner of a release process for the parking brake. According to the invention, a release process for the parking brake, after recognition of a starting process, may be configured to be as convenient as possible, whereby, on recognition of a starting process and before carrying out the release process for the parking brake, the electronic controller 6a operates the unit 1 such as to reduce the application force to a slope-dependent holding force.
Description
Technical field
The present invention relates to a kind of method that operating motor vehicle is used Parking Brake that can be Electromechanically operated that is used for, described self-propelled vehicle has the driving driving engine, this driving driving engine is provided with the mechanical gear shift change-speed box, described Parking Brake is basically by operating element, electronic control unit, at least one is used to produce the unit of thrust and is in can constitute by the brake equipment that this unit compresses at least one vehicle bridge, the vehicle wheel rotational speed value flows to this electronic control unit from wheel speed sensor, wherein, after recognizing the starting-up process of described self-propelled vehicle the described unit of this electronic control unit controls to carry out the dispose procedure of this Parking Brake.
Background technology
DE 103 24 446 B3 disclose a kind of method that is used to control the brake system that is equipped with electric parking brake.This in preceding disclosed method, determine from joint action begin up to the power-transfer clutch response very first time constantly at interval, this power-transfer clutch response constantly corresponding to so-called clutch linkage point (clutch engagement point, Kupplungsschleifpunkt).Then, the release of electric parking brake is chosen as with second time gap in this power-transfer clutch response constantly in advance constantly.Should describe control in preceding disclosed method, and should make the release of electric parking brake and clutch's jointing process and coordinate more accurately with the starting-up process of vehicle thus the time that places one's entire reliance upon of Parking Brake.But not too sufficiently consider just that at this electric parking brake needs long time gap to come the dispose procedure of complete usually.Therefore, may exist to have reached power-transfer clutch response constantly but the problem that electric parking brake discharges not yet fully under the situation of fast starting process, this is disadvantageous.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of method, this method reduces to be used to discharge the time gap of Parking Brake, so that obtain higher traveling comfort when guaranteeing maximum reliability.
According to this method, this purpose realizes like this: when recognizing starting-up process and before carrying out the dispose procedure of Parking Brake, the aforementioned unit of electronic control unit controls is so that be reduced to the confining force relevant with degree of dip with thrust.
Propose at this, confining force that should be relevant with degree of dip is by means of the sensor determination that is used to discern degree of dip.
In a particularly advantageous improvement project, when the lock torque that is somebody's turn to do confining force relevant with degree of dip or generation that calculates and adjust when institute was not enough to maintain self-propelled vehicle, the aforementioned unit of this electronic control unit controls was to improve thrust.Propose in the case, control this unit like this, the feasible thrust that produces maximum possible.
Propose in addition, whether the value that detects this confining force relevant with degree of dip by means of wheel speed sensor is enough for maintaining self-propelled vehicle.
In a particularly advantageous improvement project of the method according to this invention, the position of the pedal of clutch of the described self-propelled vehicle of clutch-pedal travel sensor, and when this pedal of clutch reaches position before the clutch linkage point, dispose procedure is controlled.
Propose at this, this position is variable and determines according to the travel direction of the desired described self-propelled vehicle of the operating speed of slope degree of dip, described pedal of clutch and vehicle driver.
This slope degree of dip is by the sensor that is used to discern degree of dip.The operating speed of this pedal of clutch is by means of this clutch-pedal travel sensor, and the travel direction of described self-propelled vehicle is by means of the gear information sensor.
Description of drawings
Describe the present invention in detail by means of an embodiment below with reference to the accompanying drawings.In the accompanying drawing:
Fig. 1 illustrates the schematic loop diagram of hydraulic brake system, and this hydraulic brake system has and is used to carry out the electromechanical units of braking during standstill process and can carries out the method according to this invention to this electromechanical units;
Fig. 2 illustrates and is used to discern starting-up process and the diagram of circuit that is used for subsequently the dispose procedure of Parking Brake being controlled;
Fig. 3 illustrates the figure of the stroke that pedal of clutch schematically is described;
Fig. 4 illustrates the diagram of circuit that is used for determining according to the travel direction of the expectation of the operating speed of slope degree of dip, pedal of clutch and self-propelled vehicle the position before the clutch linkage point.
The specific embodiment
Schematically show the loop diagram of hydraulic brake system among Fig. 1.This hydraulic brake system is to have car side brake 2 on the propons in first vehicle bridge, and these car side brakes can be loaded with pressure by hydraulic tubing 9 during service brake.For the braking deceleration of controlling expectation with in order to realize that anti-lock regulates (ABS), be configured to wheel speed sensor 12 for the wheel of propons, the output signal of these wheel speed sensors is fed to electron steering and regulon (ECU) 5.Service braking system is given in this electron steering and regulon 5 configurations.In second vehicle bridge is also to be provided with car side brake 3 on the back axle, and these car side brakes can be loaded with pressure by second hydraulic tubing 10 during service brake.Aforementioned electronic control and regulon 5 are measured and be fed to the rotating speed of the wheel of back axle by wheel speed sensor 13.In addition, the wheel of back axle except having the car side brake 3 that is used for service brake, also have can be Electromechanically operated Parking Brake.This can Electromechanically operated Parking Brake comprise two can mechanical locking brake equipment 4, these brake equipments are designed to drum brake mechanism 4, these drum brake mechanisms respectively have a unshowned expansion lock (Spreizschloss).Described expansion lock can be by means of cable 11 by 1 operation of electro-mechanical adjustment unit, and drum brake mechanism 4 is compacted thus.The braking during standstill process is performed after vehicle driver's manipulation element 7.At this, the output signal of operating element 7 is fed to the electronic control unit (ECU) 6 that dynamo-electric Parking Brake is given in a configuration, and this electronic control unit is correspondingly controlled aforementioned electro-mechanical adjustment unit 1.Described electronic control unit 6 and configuration intercom for the electron steering of service braking system mutually by data line 8 with regulon 5, this data line is designed to the CAN connecting device.
Also schematically shown pedal of clutch 14 among Fig. 1, this pedal of clutch has the clutch-pedal travel sensor 18 of measuring clutch-pedal travel.In addition, the output signal of sensor 16 that is used to discern degree of dip of the output signal of gear information sensor 15 and definite slope degree of dip is fed to the control unit 6 that Parking Brake is given in described configuration.Hereinafter will describe the purposes of described sensor in detail.
Fig. 2 shows the diagram of circuit of the starting-up process that is used for the cognitron motor-car, and wherein, configuration controls to adjust unit 1 to carry out the dispose procedure of Parking Brake for the control unit 6 of Parking Brake after recognizing starting-up process.In order to discern starting-up process, at first whether the ignition system of the signal wire (SW) (not shown) inspection machine motor-car of the ignition lock (not shown) by leading to self-propelled vehicle is activated in method step 21.If ignition system is activated, then under the condition of subsequently method step, think that self-propelled vehicle will move.For this purpose, check in method step 22 additionally whether drive driving engine is in mode of operation.Then check Parking Brake whether compacted (method step 23).Determine by means of the wheel speed sensor 12,13 that reference Fig. 1 describes whether self-propelled vehiclees remain static at the method step 24 that next is used for discerning starting-up process.Then detect the position of throttle control or acceleration pedal, in order to discern starting-up process, this throttle control or acceleration pedal must be operated above predetermined first threshold (method step 25) by the vehicle driver.In ensuing method step 28, whether selected a gear by means of aforementioned gear information sensor 15 chaufeur that checks vehicles.Whether then trying to achieve the vehicle driver by the signal of analyzing and processing clutch-pedal travel sensor 18 has stepped on pedal of clutch (method step 29).In case the vehicle driver discharges pedal of clutch 14 from the above-mentioned position that is operated, just recognize the starting-up process of self-propelled vehicle and control unit 6 dispose procedures (method step 30,31) of control and regulation unit 1 of describing by means of Fig. 1 to carry out Parking Brake with aforementioned condition with interrelating.
If self-propelled vehicle is on the slope that has greater than the degree of dip of the 3rd predetermined threshold value, then between aforementioned method steps 25 and 28, additionally estimate the drive torque of the driving driving engine of self-propelled vehicle.The drive torque of this estimation must be greater than predetermined second threshold value ( method step 26,27).The degree of dip on slope is in these sensor 16 mensuration that are used to discern degree of dip by describing by means of Fig. 1, and this sensor is determined the degree of dip of self-propelled vehicle.
In order to be illustrated more clearly in the method according to this invention, the figure of the stroke that schematically shows pedal of clutch 14 has been shown among Fig. 3.Left side S among Fig. 3
100%Vehicle driver's clutch pedal position of let slip the clutch 14 is fully represented in the position of mark.If the vehicle driver with pedal of clutch 14 from position S that this is stepped on fully
100%Middle release, then pedal of clutch 14 is through clutch linkage point S
Interlock, at this clutch linkage point, the engine moment that drives driving engine passes to drive axle, and pedal of clutch is directed into dead position S at last
0%In, in this dead position, the vehicle driver removes its pin from pedal of clutch 14.The method according to this invention proposes, if pedal of clutch 14 has arrived clutch linkage point S
InterlockPosition S before
0, then be used for the control of the dispose procedure of Parking Brake.Position S
0Be operated position and clutch linkage point S herein at 80% o'clock in pedal of clutch 14
InterlockBetween the zone in.
The known various clutch linkage point S that is used for determining
InterlockMethod.On the one hand, for example can measure the variation of the self-propelled vehicle acceleration/accel of the position that characterizes pedal of clutch 14 by means of right sensors.Perhaps, also can try to achieve clutch linkage point S indirectly
Interlock, its mode is the relation between the torque of determining to drive the rotating speed of driving engine and drive driving engine, as pedal of clutch 14 process clutch linkage point S
InterlockThe time, this relation also has significant variation.Because clutch linkage point S
InterlockRelevant with the temperature of power-transfer clutch with wearing and tearing, so what meet purpose is to carry out clutch linkage point S
InterlockRegular detection.Especially can in each starting-up process, detect.
Aforementioned clutch interlock point S
InterlockPosition S before
0---this position is extremely important for the dispose procedure of Parking Brake---is variable and determines according to the starting situation.Describe position S in detail by means of Fig. 4
0Determine.At first in method step 33, measure the degree of dip of self-propelled vehiclees by the aforementioned sensor 16 that is used to discern degree of dip.In addition, determine the operating speed V of pedal of clutch 14 by means of clutch-pedal travel sensor 18
Power-transfer clutchAnd use aforementioned gear information sensor 15 to determine the travel direction (method step 34,35) of self-propelled vehicle.In order to determine travel direction, use gear information sensor 15 preferably to measure: the vehicle driver has inserted advance gear or backing car gear.
Than the situation of reverse travel, at situation upper/lower positions S to overtake
0Can put S further from clutch linkage
Interlock, because this is normal and usual travel direction.
According to the travel direction of slope degree of dip and self-propelled vehicle, under the situation of for example " descending " and " forward ", expectation discharges Parking Brake as soon as possible, so that offset the bound sensation of chaufeur.This means position S
0Be chosen as with respect to clutch linkage point S
InterlockFar away.But if up-hill journey, then must avoid self-propelled vehicle undesirably against the travel direction of expectation to returning the slide car.This means, under this situation, reaching clutch linkage point S
InterlockThe time just allow to discharge Parking Brake.In this case, position S
0With clutch linkage point S
InterlockThe position roughly superimposed.
If chaufeur is with the pedal of clutch 14 position S from being operated fully very lentamente
100%Discharge, then position S
0Also with clutch linkage point S
InterlockThe position roughly superimposed.If but chaufeur discharges pedal of clutch 14 very apace, then know and in the very short time, to reach clutch linkage point S
InterlockBased on this understanding and in order as far as possible cosily to implement starting-up process, also carry out position S in conjunction with this parameter
0Adaptive.
In addition, because regulon 1 is regulated the thrust of maximum possible all the time, so, method of the present invention also proposes, when recognizing starting-up process, before carrying out the dispose procedure of Parking Brake, just thrust is reduced to the confining force relevant, so that quicken also as far as possible cosily to be implemented in the starting-up process dispose procedure of Parking Brake afterwards that recognizes self-propelled vehicle with degree of dip.Like this, Parking Brake is by " pre-release ".For this purpose, the electronic control unit of describing by means of Fig. 16 controls to adjust unit 1 like this, makes that the confining force relevant with degree of dip is conditioned.This confining force is by means of sensor 16 mensuration that are used to discern degree of dip.Being adjusted in the complete let slip the clutch 14 of vehicle driver and having selected gear and carried out afterwards of confining force that should be relevant with degree of dip.This also measures by means of clutch-pedal travel sensor 18 and gear information sensor 15.After the confining force relevant with degree of dip has been conditioned, as long as the vehicle driver continues starting-up process and with the pedal of clutch 14 aforementioned location S that steps on
0%, just discharge Parking Brake according to preceding method.
If the above-mentioned confining force relevant with degree of dip had error ground to regulate or because other rim condition is not enough to maintain self-propelled vehicle and self-propelled vehicle undesirably against the travel direction motion of expectation, then controlled to adjust unit 1 with the raising thrust.Preferably regulate the thrust of maximum possible again at this.Against detecting by means of providing at this of the travel direction of expectation about the signal of the gear information sensor 15 of the information of the travel direction of expectation and by means of wheel speed sensor 12,13 to returning the slide car.But the travel direction whether vehicle is expected against chaufeur only just can carry out when wheel speed sensor 12,13 is gone back the rotation direction of machines motor vehicle wheels except that the inspection vehicle wheel speed to the detection of returning the slide car.If situation is not like this, when not exporting the releasing order fully of Parking Brake in advance, then under the situation that the rotational motion of the wheel of self-propelled vehicle is measured by wheel speed sensor 12,13, promptly under self-propelled vehicle slipped the situation of car, control and regulation unit 1 was to improve thrust.
Claims (10)
1. one kind is used for the method that operating motor vehicle is used Parking Brake that can be Electromechanically operated, described self-propelled vehicle has the driving driving engine, this driving driving engine is provided with the mechanical gear shift change-speed box, described Parking Brake is basically by operating element (7), electronic control unit (6), at least one is used to produce the unit (1) of thrust and the brake equipment (4) that this unit (1) compresses that passes through that is at least one vehicle bridge constitutes, the vehicle wheel rotational speed value is from wheel speed sensor (12,13) flow to this electronic control unit, wherein, this electronic control unit (6) is controlled this unit (1) to carry out the dispose procedure of this Parking Brake after recognizing the starting-up process of described self-propelled vehicle, it is characterized in that: when recognizing starting-up process and before the dispose procedure of carrying out described Parking Brake, described electronic control unit (6) is controlled described unit (1), so that thrust is reduced to the confining force relevant with degree of dip.
2. method according to claim 1 is characterized in that: the described confining force relevant with degree of dip measured by means of the sensor that is used to discern degree of dip (16).
3. method according to claim 1 and 2 is characterized in that: when the described confining force relevant with degree of dip was not enough to maintain described self-propelled vehicle, described electronic control unit (6) was controlled described unit (1) to improve thrust.
4. method according to claim 3 is characterized in that: control described unit (1), the feasible thrust that produces maximum possible.
5. method according to claim 3 is characterized in that: whether the value that detects the described confining force relevant with degree of dip by means of described wheel speed sensor (12,13) is enough for maintaining described self-propelled vehicle.
6. method according to claim 1 is characterized in that: clutch-pedal travel sensor (18) detects the position of the pedal of clutch (14) of described self-propelled vehicle, and reaches clutch linkage point (S when this pedal of clutch (14)
Interlock) before position (S
0) time carry out control to dispose procedure.
7. method according to claim 6 is characterized in that: described position (S
0) be variable and according to the operating speed (V of slope degree of dip (α), described pedal of clutch (14)
Power-transfer clutch) and the travel direction of the desired described self-propelled vehicle of vehicle driver determine.
8. method according to claim 7 is characterized in that: described slope degree of dip (α) is detected by the described sensor (16) that is used to discern degree of dip.
9. method according to claim 7 is characterized in that: the operating speed (V of described pedal of clutch (14)
Power-transfer clutch) detect by means of described clutch-pedal travel sensor (18).
10. method according to claim 7 is characterized in that: the travel direction of the described self-propelled vehicle that the vehicle driver is desired detects by means of gear information sensor (15).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004037621.2 | 2004-08-02 | ||
| DE102004037621 | 2004-08-02 | ||
| DE102005006229.6 | 2005-02-10 | ||
| DE102005031155.5 | 2005-07-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1993257A CN1993257A (en) | 2007-07-04 |
| CN100482505C true CN100482505C (en) | 2009-04-29 |
Family
ID=38214899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800262041A Expired - Fee Related CN100482505C (en) | 2004-08-02 | 2005-07-26 | Method for operation of a braking system for a motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100482505C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2920376B1 (en) * | 2007-08-31 | 2009-12-18 | Renault Sas | SYSTEM FOR CONTROLLING THE LOOSENING OF AN AUTOMATIC PARKING BRAKE DEVICE ON BOARD A MOTOR VEHICLE |
| GB2470386A (en) * | 2009-05-21 | 2010-11-24 | Gm Global Tech Operations Inc | Electromechanically operable parking brake |
| CN101987578A (en) * | 2009-07-31 | 2011-03-23 | 北京京西重工有限公司 | Distributed electric/electronic structure with line control brake system |
| GB2483719B (en) | 2010-09-20 | 2013-06-19 | Land Rover Uk Ltd | Improvements relating to brake control |
| CN102050116B (en) * | 2010-12-17 | 2013-07-17 | 西安正昌电子有限责任公司 | Electronic parking braking method |
| CN102923110B (en) * | 2012-11-02 | 2015-04-22 | 芜湖伯特利汽车安全系统有限公司 | Electronic parking brake system capable of achieving sectional releasing for vehicles and control method thereof |
| CN104742886B (en) * | 2013-12-30 | 2017-10-31 | 比亚迪股份有限公司 | For the electronic parking system of vehicle and the vehicle with it |
| CN112124282A (en) * | 2018-08-25 | 2020-12-25 | 常州爱上学教育科技有限公司 | Linkage control device for gear and parking brake of vehicle |
| CN109733352A (en) * | 2018-12-28 | 2019-05-10 | 联创汽车电子有限公司 | Electric brake system and braking method |
| CN110748642B (en) * | 2019-10-31 | 2021-11-19 | 威马智慧出行科技（上海）有限公司 | Automobile P-gear parking control method, electronic equipment and automobile |
| CN114248746B (en) * | 2020-09-25 | 2023-04-11 | 芜湖伯特利电子控制系统有限公司 | Control method for redundant control of motor vehicle braking |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19814657A1 (en) * | 1998-04-01 | 1999-10-07 | Kuester & Co Gmbh | Open-closed loop control device for electrical parking brake device of cars |
| US6679810B1 (en) * | 1998-10-14 | 2004-01-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hill holder device for a motor vehicle |
| CN1479681A (en) * | 2000-12-18 | 2004-03-03 | 3 | Method and system for controlling a brake device that can be actuated when a motor vehicle is parked |
| CN2606034Y (en) * | 2003-03-03 | 2004-03-10 | 江仕富 | Brake sustaining devices |
| WO2004106131A1 (en) * | 2003-05-28 | 2004-12-09 | Lucas Automotive Gmbh | Method and system for controlling a braking system equipped with an electric parking brake |
-
2005
- 2005-07-26 CN CNB2005800262041A patent/CN100482505C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19814657A1 (en) * | 1998-04-01 | 1999-10-07 | Kuester & Co Gmbh | Open-closed loop control device for electrical parking brake device of cars |
| US6679810B1 (en) * | 1998-10-14 | 2004-01-20 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Hill holder device for a motor vehicle |
| CN1479681A (en) * | 2000-12-18 | 2004-03-03 | 3 | Method and system for controlling a brake device that can be actuated when a motor vehicle is parked |
| CN2606034Y (en) * | 2003-03-03 | 2004-03-10 | 江仕富 | Brake sustaining devices |
| WO2004106131A1 (en) * | 2003-05-28 | 2004-12-09 | Lucas Automotive Gmbh | Method and system for controlling a braking system equipped with an electric parking brake |
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| Publication number | Publication date |
|---|---|
| CN1993257A (en) | 2007-07-04 |
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