CN102371986B - For controlling method and the brake system of brake system - Google Patents
For controlling method and the brake system of brake system Download PDFInfo
- Publication number
- CN102371986B CN102371986B CN201110215750.7A CN201110215750A CN102371986B CN 102371986 B CN102371986 B CN 102371986B CN 201110215750 A CN201110215750 A CN 201110215750A CN 102371986 B CN102371986 B CN 102371986B
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- China
- Prior art keywords
- pressure
- brake
- primary pressure
- moment
- brake cylinder
- Prior art date
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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
- B60T8/404—Control of the pump unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- 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
-
- 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
- B60T2270/30—ESP control system
- B60T2270/304—ESP control system during driver brake actuation
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
The present invention relates to a kind of method of the brake system for controlling to be particularly useful for self-propelled vehicle.The method comprises the following steps: preset specified brake-pressure, provide at least one in time continuously especially periodically variable primary pressure, by means of in time continuously especially periodically variable described primary pressure at least one brake cylinder, provide actual brake pressure according to described specified brake-pressure.And the present invention relates to a kind of corresponding brake system and the corresponding service condition of one.
Description
Technical field
The present invention relates to a kind of method of the brake system for controlling to be particularly useful for self-propelled vehicle and a kind of corresponding brake system.
Background technology
Using the brake system comprising brake booster at present in a motor vehicle, that is when making automobile braking, pedal effort being converted to the corresponding lock torque amplified.Same described brake system has brake-power regulator by means of that open wide or closed regulating loop and control loop.In order to pedal effort is passed to corresponding wheel brake cylinder by means of pedal by the chaufeur by self-propelled vehicle, in car field, usually use hydraulic tubing.
A kind of brake equipment with operating control has been disclosed from document DE 10 2,005 055 751 A1.This brake equipment comprises the hydraulic actuating cylinder at the center with motor operation, and the hydraulic actuating cylinder at this center regulates in order and correspondingly carrys out brake-pressure given in advance by brake activation pedal in described wheel brake cylinder.For pressure initiation pressure drop in other words, between wheel brake cylinder and the hydraulic actuating cylinder at center, arrange corresponding magnet valve.The hydraulic actuating cylinder at described center and motor thereof just run when improving pressure or reduce pressure in corresponding wheel brake cylinder in this case.This for described center hydraulic actuating cylinder cause the higher power of motor.Equally, such operating cost of motor higher and cause equally comparatively ring noise.
Summary of the invention
Method for controlling the brake system being particularly useful for self-propelled vehicle according to the present invention comprises the following steps: preset specified brake-pressure by means of adjusting means, at least one especially periodically variable primary pressure continuously is in time provided, by means of in time continuously especially periodically variable described primary pressure at least one brake cylinder, provide actual brake pressure.
The brake system being particularly useful for self-propelled vehicle according to the present invention comprises adjusting means and control device, wherein said adjusting means is for presetting the specified brake-pressure at least one wheel brake cylinder, wherein said wheel brake cylinder especially with hydraulic way with for providing the device of primary pressure to be connected, wherein said control device is used for the actual brake pressure controlled according to described specified brake-pressure by means of described adjusting means in described brake cylinder, and it is wherein said for providing the device of primary pressure so to form, thus especially periodically can change by means of the continuous print in time of described primary pressure at least one brake cylinder described, provide actual brake pressure according to the specified brake-pressure preset by adjusting means in time range.
The invention still further relates to by brake system of the present invention for by means of in time continuously especially periodically variable primary pressure the application of actual brake pressure is especially provided at least one wheel brake cylinder by means of adjusting means according to the specified brake-pressure preset.
There is provided at least one especially periodically variable primary pressure continuously in time, this preferably should be interpreted as the temporal change curve at least temporarily presetting primary pressure in the present invention.
By method of the present invention, by brake system of the present invention and by application of the present invention, there is such advantage, namely by the continuous print of primary pressure especially periodically change can realize described for such as providing the continuous print of the device of primary pressure to run to main brake cylinder.Therefore, only need a unique actuating device such as electro-motor for finally changing the brake-pressure in brake cylinder.In addition, do not need to feed back pump, which greatly reduces the cost for the manufacture of brake system.Meanwhile, it also avoid the very loud noise such as occurred because continuous print runs when pressure initiation or pressure reduce.The last service life that improve brake system thus equally, because can realize described for providing the uniform operation of the device of brake-pressure.
In order to higher service life can also be realized, the form that the change of brake-pressure can not only continue with continuous print is in other words carried out, but also namely can carry out according to the level and smooth curve of the change being used for brake-pressure by means of the form level and smooth in mathematical meaning of described change.
According to the improvement project that another kind of the present invention is favourable, described primary pressure is amplified according to the type of described adjusting means and/or is regulated in time.Advantage is in this case, such as when being carried out the adjusting means of machinery of form of brake activation pedal by chaufeur and/or such as be especially configured to electronic stability program form automatic adjusting means amplify according to described adjusting means the primary pressure preset, wherein for described electronics stability program then according in time continuously especially periodically variable primary pressure the brake-pressure preset is provided on brake cylinder.
According to the improvement project that another kind of the present invention is favourable, especially periodically variable described primary pressure has continuously is in time the change curve of the shape of sine, triangle, sawtooth and/or exponential function at least partly.Advantage is in this case, significantly improves the alerting ability of described method, because time-varying described primary pressure completely or also can have some different curves in piecewise.By simple mode, the situation that provides of the brake-pressure preset can be made thus to match with outside condition or desired characteristic.
According to the improvement project that another kind of the present invention is favourable, provide two kinds of especially periodically variable primary pressure especially with anti-phase change curve continuously in time.Advantage is in this case, the brake-pressure preset can be mated in each moment, that is each moment may occur in brake cylinder especially described in the just change of brake-pressure that presets and negative change because positive rise and falling edge can be formed for carrying out pressure match in brake cylinder simultaneously.
Alternatively favourable improvement project, the actual brake pressure improving the actual brake pressure on brake cylinder and/or reduce in the process of the described primary pressure of continually varying in time decline on brake cylinder in the process that the described primary pressure of continually varying in time rises.Advantage is in this case, in this way with simple and failure-free mode improves or reduces actual brake pressure.
Alternatively favourable improvement project, the actual brake pressure improving the actual brake pressure on brake cylinder and/or reduce in the process of the described primary pressure of continually varying in time rising on brake cylinder in the process that described time-varying primary pressure declines.Advantage is in this case, also can change the brake-pressure on brake cylinder thus extraly when primary pressure inverse change.Improve the alerting ability of described method in this way further, the brake-pressure on brake cylinder can be mated simultaneously quickly.
According to the improvement project that the another kind of described brake system is favourable, described for providing the device of primary pressure to be configured to extraly amplify brake-pressure.Advantage is in this case, can save independent brake booster thus, and described brake system can on the whole with comparatively cheap cost structure like this.
The especially described control device of described brake system and/or described for providing the device of primary pressure can comprise one or more valve.Mode simple and with low cost can provide the brake-pressure regulating in other words and preset thus.
Accompanying drawing explanation
Embodiments of the invention are shown in the drawings and be explained in detail in the following description.Wherein:
Fig. 1 is the schematic diagram of the brake system by the first embodiment of the present invention;
Fig. 2 a, b are the pressure curves of the method by the first embodiment of the present invention;
Fig. 3 a, b are the pressure curves of the method by the second embodiment of the present invention.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the brake system by the first embodiment of the present invention.Reference numeral 1 represents the pressure regulator 1 being used for presetting the specified brake-pressure for wheel brake cylinder R by means of pedal 3 in FIG, among described brake pedal 3 is in and is acted on by pedal-rod 3a and described pressure regulator 1 and being connected.In addition, described pressure regulator 1 is by pipeline L
1be connected with valve 2, described valve 2 is again by pipeline L
2be connected with wheel brake cylinder R respectively, for handling wheel brake cylinder R.According to the pressure changed continuously in time in pressure regulator 1, by to be connected with described pressure regulator 1 on the one hand and in order to control described valve 2, described valve 2 is opened or closed to coupled control device 2 ', for providing the specified brake-pressure preset by described pedal 3 (actual brake pressure) on corresponding wheel brake cylinder R on the other hand.
Fig. 2 shows the curve of the method by the first embodiment of the present invention.
Show primary pressure p in fig. 2 a
vcurve, this primary pressure p
vtime curve there is sinusoidal shape.In the p-t-chart illustrated there in fig. 2 a, primary pressure p is shown
vensuing pressure curve: at moment t
1this primary pressure p
vbe zero and then ensuing until moment t
3curve in rise to maxim p always
maxand then anotherly directly drop to zero, subsequently from moment t
6 'rise again at moment t
3 'rise to maxim p
maxand then anotherly directly drop to zero.Described primary pressure p
vcurve at this at value of zero and maxim p
maxbetween change.
The primary pressure p changed continuously in time described in thus illustrating in fig. 2 a
vtwo of sinusoidal change curve complete cycle.In addition show and the pressure curve p by Fig. 2 b
1, p '
1, p
2, p '
2corresponding moment t of corresponding moment
1-t
14.Reference numeral p in figure 2b
1represent the curve of the actual brake pressure in the wheel brake cylinder of off front wheel, Reference numeral p
2corresponding to the actual brake pressure curve of the wheel brake cylinder of the near front wheel.The corresponding pressure curve p ' interruptedly illustrated
1, p '
2then have pressure to be regulated corresponding on corresponding front-wheel, namely such as by means of brake pedal 3(see Fig. 1) the specified brake-pressure that presets.
In the present invention, thus the current brake-pressure on corresponding brake cylinder especially wheel brake cylinder R being called actual brake pressure, being called specified brake-pressure by there being brake-pressure to be regulated on corresponding brake cylinder especially wheel brake cylinder R.
In order to the method by the first embodiment is described, now by means of Fig. 2 a and Fig. 2 b and moment t
1-t
14the method is described.
Actual brake pressure p on off front wheel
1curve as follows: for moment t<t
1p
1=0, at moment t
1with t
2between actual brake pressure p
1according to the primary pressure p pressing Fig. 2 a
vcurve rise.At moment t
2to t
5between, described actual brake pressure p
1with numerical value c
1keep constant.At moment t
5with t
6between, actual brake pressure p
1according to the primary pressure p of Fig. 2 a
vdecline situation decline.At moment t
6with t
7between, actual pressure p
1with numerical value c
2<c
1keep constant.At moment t
7, actual pressure p
1according to the primary pressure p of Fig. 2 a
vcorresponding rising situation and rise until moment t
9.Actual pressure p subsequently
1to be not equal to the numerical value c of zero
3>c
1>c
2keep again constant until moment t
14.
The actual brake pressure p of the brake cylinder R of the near front wheel
2as follows in this change: at moment t
1before and from moment t
1rise until moment t
5, described actual brake pressure p
2curve corresponding to actual brake pressure p
1curve.At moment t
5described actual brake pressure p
2until moment t
8with the actual brake pressure p of the wheel brake cylinder of described off front wheel
1contrary to numerical value c
1keep constant, at moment t
8with t
9between described actual brake pressure p
2pressure curve corresponding to described actual brake pressure p
1curve.But at moment t
9, with the actual brake pressure p of the wheel brake cylinder of described off front wheel
1curve contrary, described actual brake pressure p
2continue to rise until moment t
10.At moment t
10with t
11between, pressure curve p
2with than described actual brake pressure p
1corresponding constant numerical value c
3large numerical value c
4keep constant.At moment t
11described actual brake pressure p
2decline until moment t
13and at this at moment t
12lower than described actual brake pressure p
1.At moment t
13afterwards until moment t
14, described actual brake pressure p
2pressure curve with numerical value c
1keep constant.
Described have brake-pressure to be regulated i.e. specified brake-pressure p ' on off front wheel
1there is following change curve: until moment t
1described specified brake-pressure p '
1be zero.At moment t
1preset the constant pressure c being not equal to zero
1until moment t
4.At moment t
4described specified brake-pressure p '
1be again zero until moment t
6.At moment t
6with numerical value c
3>c
1preset the second constant specified brake-pressure p '
1 ', until moment t
14.From moment t
14rise, preset again null specified brake-pressure p '
1.
The brake-pressure p ' that the wheel brake cylinder R of the near front wheel presets
2corresponding pressure curve as follows at this: until moment t
3described specified brake-pressure p '
2curve corresponding to described specified brake-pressure p '
1curve.At moment t
3, described specified brake-pressure p '
2rise to numerical value c
4.This numerical value c
4from moment t
3until moment t
11be redefined for specified brake-pressure p ' consistently
2.At moment t
11described specified brake-pressure p '
2drop to again numerical value c
1and until moment t
14keep constant.
The same as explained above, at moment t
1the specific specified brake-pressure p ' on the wheel brake cylinder R of described off front wheel is preset as by electronic stability program
1.In order to regulate this specified brake-pressure p '
1, now at moment t
1open the corresponding valve 2 between pressure regulator 1 and corresponding wheel brake cylinder R.Due to described primary pressure p
vmoment t
1with t
2between the change curve of rising, now according to the curve p pressing Fig. 2 b
1form actual brake pressure.At moment t
2that is at described specified brake-pressure p '
1be equivalent to actual brake pressure p
1time, again corresponding valve 2 cuts out and p
1=p '
1.But described pressure regulator 1 continues to provide the primary pressure p of continually varying in time by Fig. 2 a in ensuing time variations
v.Because present valve 2 cuts out, do not load the primary pressure p continuing to rise to corresponding wheel brake cylinder R
v.
At moment t
4, now should according to the specified brake-pressure p ' pressing Fig. 2 b
1change curve actual brake pressure is reduced to zero.The primary pressure p of described pressure regulator 1
vat moment t
4although decline, its numerical value is only at moment t
5just reach the actual brake pressure p on the wheel brake cylinder R of described off front wheel
1.Correspondingly, at moment t
4with t
5between can not reduce pressure, because described primary pressure p
vbe greater than actual brake pressure p
1.At moment t
5that is at actual brake pressure p
1be equivalent to primary pressure p
vtime, valve 2 is opened and actual brake pressure p
1according to the primary pressure p of pressure regulator 1
vdecline.At moment t
6preset and wheel brake cylinder R has numerical value c
3specified brake-pressure p '
1.But at moment t
6, described primary pressure p
valso decline, if that is open now corresponding valve 2, the actual brake pressure p in so corresponding wheel brake cylinder R
1can continue to decline.For this reason, at moment t
6corresponding valve 2 cuts out, makes the actual brake pressure p on the wheel brake cylinder R on the right
1do not continue to decline.At moment t
7, described primary pressure p
vrise to again numerical value c
2.Open corresponding valve 2 until moment t
9, at this moment t
9described specified brake-pressure p '
1be equivalent to that there is numerical value c
3actual brake pressure p
1.Shutoff valve 2, that is p ' subsequently
1=p
1=c
3.The primary pressure p of described pressure regulator 1
vcontinue again to rise.
Until moment t
3, described actual brake pressure p
2curve be correspondingly equivalent to corresponding actual brake pressure p
1and pressure curve p '
2be equivalent to pressure curve p '
1.If at moment t on the wheel brake cylinder R of present on the left side
3regulate specified brake-pressure p '
2=c
4, so only at moment t
8just load this specified brake-pressure p ' by opening of corresponding valve 2
2.At moment t
8, described primary pressure p
vcurve be rise and there is the actual brake pressure p of the wheel brake cylinder on the described left side
2.At moment t
10, again the valve 2 of the wheel brake cylinder R leading to the near front wheel accordingly cuts out and described specified brake-pressure p '
2be equivalent to actual brake pressure p
2.Primary pressure p
valso according to Fig. 2 a with t
10<t
3 '<t
11rise until moment t
3 '.If now by described specified brake-pressure p '
2be reduced to numerical value c
1, that is just at moment t
11open corresponding valve 2 and actual brake pressure p
2according to the primary pressure p pressing Fig. 2 a
vthe change curve of decline reduce.If press the primary pressure p of Fig. 2 a
vat moment t
13reach desired numerical value c
1, the valve 2 of the wheel brake cylinder R leading to revolver accordingly cuts out again by that, and the actual brake pressure p in the wheel brake cylinder on the left side
2keep constant.Contrary described primary pressure p
valso continue to decline.
In a word, the pressure match therefore in corresponding wheel brake cylinder R is based on following principle: if should improve the brake-pressure on wheel brake cylinder R, that just utilizes the primary pressure p of described pressure regulator 1
vthe positive rise of curve, method is the corresponding valve 2 opened between pressure regulator 1 and corresponding wheel brake cylinder R.If reach desired brake-pressure on wheel brake cylinder R, that is with regard to shutoff valve 2.If should reduce pressure namely reduce brake-pressure on wheel brake cylinder R, that just utilizes the primary pressure p of described pressure regulator 1 for this reason
vthe edge of corresponding decline, method then opens again pressure regulator 1 and the corresponding valve 2 between wheel brake cylinder R.Pressure when only the primary pressure of described pressure regulator 1 is greater than in corresponding wheel brake cylinder R pressure when expecting to improve the pressure in wheel brake cylinder for this and when expecting to reduce pressure in wheel brake cylinder is higher than the primary pressure p of described pressure regulator 1
vin time, just correspondingly improves pressure and reduces pressure in other words and just open valve 2 in other words.
Fig. 3 shows the pressure curve of the method by the second embodiment of the present invention.Show in fig. 3 a at moment t
1-t
14, t
3 'and t
6 'primary pressure p
vto the corresponding primary pressure p pressing Fig. 2 a
vthe identical curve of curve.The maxim p of same primary pressure
maxidentical in Fig. 2 a and 3a.
Below present to the left side in other words the right front-wheel on actual brake pressure p
1, p
2curve and the brake-pressure p ' that presets
1, p '
2curve be described.
By the actual brake pressure p of Fig. 3 b
1curve at this until the moment t of Fig. 3 b
14be equivalent to the actual brake pressure p by Fig. 2 b
1curve.With the actual brake pressure p of Fig. 2 b
1curve unlike, pressure is at moment t
14until at moment t>t
14drop to zero.By the specified brake-pressure p ' of Fig. 3 b
1curve be correspondingly equivalent to by Fig. 2 b specified brake-pressure p '
1corresponding curve.Equally, by the specified brake-pressure p ' of Fig. 3 b
2curve be correspondingly equivalent to by Fig. 2 b specified brake-pressure p '
2corresponding curve.
With the method for pressing Fig. 2 a, 2b unlike, resemble primary pressure p now
vpositive rise the same also by primary pressure p for reducing the pressure in wheel brake cylinder R
vfalling edge for improving the pressure in wheel brake cylinder R.At moment t
3carry out the pressure p preset on the near front wheel
2positive pressure change, that is specified brake-pressure p '
2there is numerical value c
4>c
1.But, at moment t
3the primary pressure p of described pressure regulator 1
vdecline.However corresponding valve 2 is opened now, because described primary pressure p
vbe greater than the actual brake pressure p in the wheel brake cylinder R of the near front wheel
2.Correspondingly at moment t
3with t
4between, the actual brake pressure p in corresponding wheel brake cylinder R
2rise, although there is described primary pressure p
vfalling edge.At moment t
4actual brake pressure p in described wheel brake cylinder R
2substantially with the primary pressure p of pressure regulator 1
vequally large.Correspondingly, now valve 2 cuts out, for avoiding the primary pressure p owing to declining further
vand Pressure Drop is there is in wheel brake cylinder R.Because primary pressure p
vdrop to moment t always
6 ', so described valve 2 is kept closed condition and actual brake pressure p on the wheel brake cylinder R on the described left side
2keep constant.Because primary pressure p
vat moment t
4drop to and there is numerical value c
4specified brake-pressure p '
2under, so the actual brake pressure p of described wheel brake cylinder R
2numerical value c '
4although be greater than described numerical value c
1but be less than and there is numerical value c
4specified brake-pressure.From moment t
6 'rise, by the primary pressure p of Fig. 3 a
valthough rise again, only at moment t
9adescribed primary pressure p
vjust be greater than, in the wheel brake cylinder R on the left side, there is numerical value c '
4actual brake pressure p
2.Correspondingly open valve 2 now, thus due to described primary pressure p
vpositive rise described in the left side wheel brake cylinder in actual brake pressure p
2rise, until described actual brake pressure p
2numerical value be equivalent to that there is numerical value c
4specified brake-pressure p '
2.Subsequently at moment t
10valve 2 cuts out.Described primary pressure p
vcontinue to rise until at moment t
3 'reach maxim and then again decline in ensuing curve.Described actual brake pressure is specified brake-pressure p in other words
2p ' in other words
2ensuing curve from moment t
11play the p be equivalent to again by Fig. 2 b
2p ' in other words
2curve.
By the pressure match of the method for Fig. 3 a, 3b therefore based on such principle, namely extraly by described primary pressure p
vfalling edge and/or positive rise be used in wheel brake cylinder R actual pressure p
1, p
2pressure increase/pressure reduce.
In addition, situation can be provided by means of the time length opened of corresponding valve 2 to what change actual brake pressure on wheel brake cylinder R.
In addition, can provide equally and correspondingly there are two respectively for the pressure regulator 1 of the mouth of a wheel brake cylinder R.Described pressure regulator 1 is then so formed, thus on described mouth, provide the pressure curve pv differently changed
1and pv
2, described pressure history pv
1and pv
2especially relative to each other anti-phase or reverse: the primary pressure pv that sinusoidal shape is such as provided on a mouth of described pressure regulator 1
1and on second mouth, provide cosine shape pv
2the second primary pressure.Can be engraved in when each thus in corresponding wheel brake cylinder R and formed or reduce pressure.Be necessary to provide two to have two pipelines for the valve of described wheel brake cylinder R, described two pipelines are connected with corresponding mouth for this reason.
In a word, the present invention has such advantage, and the brake-pressure in namely single wheel brake cylinder need not regulate in order, but each wheel brake cylinder can employ in the arbitrary moment primary pressure p provided by described pressure regulator 1
vfor changing the brake-pressure in wheel brake cylinder.Multiple wheel brake pressure can be changed thus simultaneously.Certainly, corresponding controller, pump and pressure sensor can be set within the scope of the invention.
Although by means of preferred embodiment, invention has been described above, the present invention is not limited to this, but can be changed in diversified mode.
Claims (10)
1., for controlling the method for brake system, comprise the following steps:
By means of adjusting means (3,3a) preset specified brake-pressure (p '
1, p '
2),
Primary pressure (the p providing at least one to change continuously in time
v),
By means of the described primary pressure (p changed continuously in time
v) according to described specified brake-pressure (p '
1, p '
2) at least one brake cylinder (R), provide actual brake pressure.
2. by method according to claim 1, wherein
Type according to described adjusting means (3,3a) is amplified and/or modulates described primary pressure (p in time
v).
3. by method according to claim 1, wherein
Described primary pressure (the p changed continuously in time
v) to have be the curve of shape of sine, triangle, sawtooth and/or exponential function at least in part.
4. by method according to claim 1, wherein
Primary pressure (the p that two kinds change in time is continuously provided
v).
5. by method according to claim 1, wherein
At the described primary pressure (p changed continuously in time
v) improve actual brake pressure (p on brake cylinder (R) in the process that raises
1, p
2) and/or at the described primary pressure (p changed continuously in time
v) reduce actual brake pressure (p on brake cylinder (R) in the process that declines
1, p
2).
6. by the method described in claim 1 or 5, wherein
At the described primary pressure (p changed continuously in time
v) improve actual brake pressure (p on brake cylinder (R) in the process that declines
1, p
2) and/or at the described primary pressure (p changed continuously in time
v) reduce actual brake pressure (p on brake cylinder (R) in the process that raises
1, p
2).
7. by method according to claim 4, wherein
Described two kinds of primary pressure (p
v) there is relative to each other anti-phase curve.
8. brake system (S), comprise for preset specified brake-pressure at least one wheel brake cylinder (R) (p '
1, p '
2) adjusting means (3,3a), wherein said wheel brake cylinder (R) with for providing primary pressure (p
v) device (1, L
1, L
2) connect, and
According to described specified brake-pressure (p '
1, p '
2) control the control device (2,2 ') of the actual brake pressure in described brake cylinder (R) by means of described adjusting means (3,3a), wherein said for provide primary pressure device (1, L
1, L
2) so form, thus by means of described primary pressure (p
v) the change of continuous print in time in time range, actual brake pressure can be provided according to the specified brake-pressure preset by described adjusting means (3,3a) at least one brake cylinder (R).
9. by brake system according to claim 8, wherein
Described for providing primary pressure (p
v) device (1, L
1, L
2) be configured to extraly amplify described primary pressure (p
v).
10. by by the brake system (S) described in claim 8 or 9 for by means of the primary pressure (p changed continuously in time
v) according to preset specified brake-pressure (p '
1, p '
2) at least one brake cylinder (R), provide actual brake pressure (p
1, p
2) application.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010038709.6 | 2010-07-30 | ||
| DE102010038709.6A DE102010038709B4 (en) | 2010-07-30 | 2010-07-30 | Method for controlling a braking system and braking system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102371986A CN102371986A (en) | 2012-03-14 |
| CN102371986B true CN102371986B (en) | 2015-08-12 |
Family
ID=45471154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110215750.7A Expired - Fee Related CN102371986B (en) | 2010-07-30 | 2011-07-29 | For controlling method and the brake system of brake system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102371986B (en) |
| DE (1) | DE102010038709B4 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066993A1 (en) * | 2004-12-22 | 2006-06-29 | Robert Bosch Gmbh | Pressure system comprising at least two pressure circuits |
| DE102005055751A1 (en) * | 2005-04-21 | 2006-11-16 | Gerber, Wolfram | Pressure modulator control |
| CN101253086A (en) * | 2005-09-01 | 2008-08-27 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method of determining an initial pressure in a motor vehicle brake system |
| CN101600610A (en) * | 2007-02-07 | 2009-12-09 | 丰田自动车株式会社 | Brake control apparatus and brake control method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19635693A1 (en) | 1996-09-03 | 1998-03-05 | Bosch Gmbh Robert | Solenoid valve for a slip-controlled, hydraulic vehicle brake system |
| JP2000185636A (en) | 1998-12-24 | 2000-07-04 | Aisin Seiki Co Ltd | Brake control device for vehicle |
| JP3969169B2 (en) * | 2002-04-24 | 2007-09-05 | 株式会社アドヴィックス | Electric brake device for vehicle |
| DE102006055831A1 (en) | 2006-11-27 | 2008-05-29 | Robert Bosch Gmbh | magnetic valve |
-
2010
- 2010-07-30 DE DE102010038709.6A patent/DE102010038709B4/en not_active Expired - Fee Related
-
2011
- 2011-07-29 CN CN201110215750.7A patent/CN102371986B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006066993A1 (en) * | 2004-12-22 | 2006-06-29 | Robert Bosch Gmbh | Pressure system comprising at least two pressure circuits |
| DE102005055751A1 (en) * | 2005-04-21 | 2006-11-16 | Gerber, Wolfram | Pressure modulator control |
| CN101253086A (en) * | 2005-09-01 | 2008-08-27 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Method of determining an initial pressure in a motor vehicle brake system |
| CN101600610A (en) * | 2007-02-07 | 2009-12-09 | 丰田自动车株式会社 | Brake control apparatus and brake control method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010038709A1 (en) | 2012-02-02 |
| DE102010038709B4 (en) | 2023-10-05 |
| CN102371986A (en) | 2012-03-14 |
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