CN104417513A - Method for monitoring revolution speed transducer - Google Patents
Method for monitoring revolution speed transducer Download PDFInfo
- Publication number
- CN104417513A CN104417513A CN201410452778.6A CN201410452778A CN104417513A CN 104417513 A CN104417513 A CN 104417513A CN 201410452778 A CN201410452778 A CN 201410452778A CN 104417513 A CN104417513 A CN 104417513A
- Authority
- CN
- China
- Prior art keywords
- pulse
- tachogen
- confidence level
- speed sensor
- level inspection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012544 monitoring process Methods 0.000 title claims abstract description 6
- 230000000737 periodic effect Effects 0.000 claims abstract description 17
- 238000007689 inspection Methods 0.000 claims description 13
- 230000015556 catabolic process Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 description 16
- 230000006872 improvement Effects 0.000 description 11
- 238000005259 measurement Methods 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000002950 deficient Effects 0.000 description 6
- 238000004590 computer program Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
-
- 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
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/1755—Brake regulation specially adapted to control the stability of the vehicle, e.g. taking into account yaw rate or transverse acceleration in a curve
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/488—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by variable reluctance detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention relates to a method for monitoring a revolution speed transducer (10). The revolution speed transducer is arranged to output a revolving speed in a modulated manner by detecting revolving speed (12) and outputting pulse (64,66) of signals (39,39') periodically. The method comprises: detecting periodic output signals (39,39') of the revolution speed transducer (10), and based on the comparison of sizes of at least three joined pulses (64,66), checking the reliability of the output signals (39,39').
Description
Technical field
The present invention relates to a kind of method for monitoring rotation speed sensor, a kind of control setup for performing this method and a kind of sensor with this control setup.
Background technology
By the known vehicle of DE 10 2,011 080 789 A1, wheel speed sensor is installed wherein, for detecting the wheel speed of each wheel.
Summary of the invention
The object of the invention is, improve the detection to wheel speed.
This object is achieved by the feature of independent claims.Preferred improvement project is the theme of dependent claims.
A kind of method for monitoring rotation speed sensor according to one aspect of the present invention, this tachogen is arranged to, detect rotating speed and export described rotating speed with the modulation of the form of the pulse of periodic output signal, the method comprises the steps: the periodic output signal of detection tachogen and carries out confidence level inspection based on comparing the size of at least three mutual pulses be connected to output signal.
Described method is considered based on following: tachogen, such as, start described wheel speed sensor and can export its rotating speed detected with modulating with the form of the pulse of periodic signal.That is, in order to send rotating speed, each pulse of periodic signal is out of shape according to rotating speed, such as, in duration of pulse and/or amplitude.Then this rotating speed can be read according to the knowledge of used transformation rule by the periodic signal be out of shape at receiver side, i.e. demodulation.
But can occur when detecting rotating speed, when modulating or when transmitting the periodic signal of modulation, when not inserting additional redundant information, receptor can not identify, the rotating speed inside the periodic signal of modulation is correct or mistake.If detected rotating speed inherently mistake, then here insert redundant information do not help at all.
In the scope of described method, suggested another approach here, the size wherein based on each pulse of periodic signal compares and checks the confidence level of received rotating speed.This suggestion is based on this thought, that is: detected rotating speed can not suddenly change arbitrary numerical value.Therefore the shape of pulse also can not suddenly change.
The background of observing at least three pulses be mutually connected is that two pulses (positive pulse and a negative going pulse) form one-period in periodic signal.In this cycle inside because modulation may cause unexpected change in pulse shape.But next pulse i.e. the 3rd pulse then must depend on the first pulse based on the restriction of rotation speed change.
If do not consider the shape of pulse itself and by periodic signal demodulation rotating speed, then described method is useful especially.This is exactly such as the situation in the wheel speed sensor described in beginning, wherein such as only counts the zero-bit in specified time section, in order to infer the wheel speed that will detect.Such as when wheel speed sensor spring (Flippen), namely when when wheel speed sensor read head mistakenly orientation with the addition of mistake induced voltage component time, the pulse of mistake may be there is, the pulse of mistake here will cause the wheel speed obtaining many times high, and it may cause the state of criticality safety in the traveling dynamic regulator described in beginning.
In a particularly preferred improvement project of described method, described tachogen is linearizing magnetoresistive transducer.Reluctance speed sensor refers to following such sensor, that is: this sensor has measurement end instr, and this measurement end instr has when time under the magnetic field of magnetic radiated element being in motion the resistance changed according to applied magnetic field.Described reluctance speed sensor can pass through either type linearization.Such as described magnetoresistive transducer can construct with the form of known Barber electrode structure.Alternatively also can, make described magnetic resistance measure end instr and have the shape that non-rectilinear extends, wherein electric current is measured end instr by magnetic resistance and is measured the easy axle of end instr around magnetic resistance and have rotated an angle.
This improvement project of the present invention is considered based on following, that is: above-mentioned spring is difficult to process especially in linearizing reluctance speed sensor.The background of linearizing reluctance speed sensor exports sinusoidal signal, wherein only needs to observe the switching edge of the above-mentioned pulse of measurement end instr to evaluate rotating speed.But linearizing prerequisite is magnetic resistance measurement, and end instr accurately aims at radiated element.Otherwise in the linearizing reluctance speed sensor with the magnetic resistance measurement end instr that non-precision is aimed at, less desirable magnetic-field component will cause the pulse increasing measured rotating speed in an undesired manner.But this less desirable pulse is at it, and pulse significant from reality is different and therefore can be identified by described method in shape.
In an improvement project of described method, in order to carry out confidence level inspection, the distance between the pulse be mutually connected and each intersection point of given amplitude threshold is compared.This improvement project is considered based on following, that is: in periodic signal, cause more high-revolving component of signal should have corresponding shorter Cycle Length.This shorter Cycle Length can obtain by comparing the distance of intersection point.
Described amplitude threshold can be arbitrary numerical value, such as also can be zero, considers that zero-bit is as intersection point thus.Particularly preferably, select non-vanishing numerical value as amplitude threshold, because the noise component when detecting rotating speed can be shielded thus.
In an alternative or additional improvement project of described method, in order to carry out confidence level inspection, the amplitude of the pulse be relatively mutually connected.Described Amplitude Comparison provides substitute an or additional information generator, for checking the confidence level of output signal, can improve the reliability that confidence level checks thus.
In a special adaptations scheme of described method, if the fluctuation of the distance of described intersection point and/or the fluctuation of amplitude are beyond given degree, then described confidence level inspection failure.This distance such as can be placed in a value by the way, and the degree of cyclic irregularity provided by the periodic signal modulated for this value will be irrational physically.
In another improvement project of described method, each pulse has duration of pulse and amplitude in the output signal, based at least three pulses be mutually connected each duration of pulse between and correspondence between each amplitude and carry out the confidence level inspection of described output signal.Realize dual confidence level inspection in this way, obtain confidence level check result more reliably thus and the false judgment within the scope of described method can be avoided.
In another improvement project, described method comprises the step exporting breakdown signal when described confidence level inspection failure.In this way, rearmounted evaluating apparatus, traveling dynamic apparatus such as described in beginning can the information of notified " not using the exported periodic signal containing rotary speed information ", because this rotary speed information is obviously wrong.
Alternatively or additionally in the scope of a preferred improvement project, based on breakdown signal, described tachogen can be transformed into clear and definite faulty condition.This faulty condition such as can remain to it always and safeguard next time, to contribute to service personnel finding fault.
According to another aspect of the present invention, a control setup is configured to perform one of described method.
In an improvement project of described control setup, described control setup has memory device and treater.Said method to be stored in the form of a computer program inside memory device and described treater for performing described method when computer program is loaded into treater from memory device.
According to another aspect of the present invention, computer program comprises program code mechanism, with box lunch on computers or one of described control setup is upper implement described computer program time perform the institute of described method in steps.
According to another aspect of the present invention, computer program contains program code, and this program code is stored in can in the data carrier that reads of computing machine, and when in data processing equipment during operational procedure code, this data carrier performs described method.
According to another aspect of the present invention, sensor comprises described control setup.
In a special improvement project, described sensor is wheel speed sensor.
According to another aspect of the present invention, vehicle comprises described wheel speed sensor.
Accompanying drawing explanation
More clearly understand in order to more clear, in conjunction with below the description of the embodiment shown in is in the accompanying drawings explained to above-mentioned characteristic of the present invention, feature and advantage in detail and how to be realized their mode and method, wherein:
Fig. 1 illustrates the schematic diagram with the vehicle travelling dynamic regulator,
Fig. 2 illustrates the schematic diagram of the tachogen in the traveling dynamic regulator of Fig. 1,
Fig. 3 illustrates the time dependent curve of the signals of rotational speed sensor of the tachogen of Fig. 2,
Fig. 4 illustrates the time dependent curve of the output signal of the tachogen of Fig. 2.
Technical parts identical is in the accompanying drawings furnished with identical Reference numeral and only describes once.
Detailed description of the invention
The schematic diagram of the vehicle 2 with known traveling dynamic regulator is shown with reference to Fig. 1, Fig. 1.Such as can obtain by DE 10 2,011 080 789 A1 the details that this travels dynamic regulator.
Vehicle 2 comprises vehicle body 4 and four wheels 6.The drg 8 that each wheel 6 can be fixed on vehicle body 4 regularly by position slows down relative to vehicle body 4, slows down to make the motion of vehicle 2 on the road be not shown specifically.
May occur in the manner known to persons skilled in the art at this: the wheel 6 of vehicle 2 loses the attachment of its ground, and vehicle 2 is even due to understeer or turn to excessive and leave track such as given in advance by the bearing circle be not shown specifically.This point by known regulating loop as ABS (antiblock device) and ESP (electronic stability program) avoids.
Vehicle 2 has tachogen 10 on wheel 6 in the present example for this reason, and these tachogens detect the rotating speed 12 of wheel 6.In addition, vehicle 2 also has inertial sensor 14, this inertial sensor detects the traveling dynamic data 16 of vehicle 2, can provide pitch rate, roll rate, yaw-rate, transverse acceleration, longitudinal acceleration and/or normal acceleration in the manner known to persons skilled in the art by these data.
Based on measured rotating speed 12 and traveling dynamic data 16, the evaluating apparatus of regulating control 18 form is determined in the manner known to persons skilled in the art, vehicle 2 whether slippage or even depart from above-mentioned track given in advance on road surface, and correspondingly by known regulator output signal 20, this is reacted.Then regulator output signal 20 can be utilized by setting device 22, and drive control for utilizing adjustment signal 24 and perform link, such as drg 8, described execution link is reacted for slippage with from departing from of track given in advance in known manner.
Regulating control 18 such as can be combined to inside the known engine controller of vehicle 2.Regulating control 18 and setting device 22 also can be designed to a common control apparatus, and are combined to alternatively inside above-mentioned engine controller.
The present invention will explain, although the present invention can be converted on arbitrary sensor, such as inertial sensor 14 in detail by means of tachogen 10 shown in FIG.
The schematic diagram of the tachogen 10 inside the traveling dynamic regulator of Fig. 1 is shown with reference to Fig. 2, Fig. 2.
Tachogen 10 is active tachogen in the present example, and this tachogen comprises the coding disk 26 that can not be fixed in relative rotation on wheel 6 and the read head 28 fixed regularly relative to vehicle body 4 position.
Coding disk 26 is made up of the north magnetic pole 30 of connecting and south magnetic pole 32 in the present example, and they jointly motivate the transmitting magnetic field be not shown specifically.If the coding disk be fixed on wheel 6 rotates along hand of rotation 34 with wheel, then launch magnetic field along with rotating together.
Read head 28 comprises magnetoresistive element 35 and auxiliary magnet 36 in the present example.Magnetoresistive element 35 changes its resistance according to the Angle Position in the transmitting magnetic field of being encouraged by coding disk 26.This change of resistance non-linearly depends on the Angle Position of coding disk 26 in known manner.If coding disk 26 rotates, the resistance of magnetoresistive element 35 is with the characteristic variations of Sine-squared, but this will bring certain evaluation complexity.
In order to the nonlinear relationship linearization of the Angle Position of the resistance and coding disk 26 that make magnetoresistive element 35, magnetoresistive element 35 is provided with auxiliary magnet 36.The auxiliary field encouraged by auxiliary magnet 36 is orthogonal to the magnetic pole 30,32 of coding disk 26.The auxiliary field of auxiliary magnet 36 has radial component 37 and tangential component 38 at hand of rotation 34.The term with the wheel speed sensor of this linearization element is Barber electrode structure, and such as describes in detail in document DE 10 2,006 036 197 A1.
When coding disk 26 rotates along hand of rotation 34, tangential component 38 causes the above-mentioned linearization of magnetostriction element 35 resistance, and and then cause the sinusoidal change curve of resistance, and radial component 37 disturbs this sinusoidal change curve.Therefore must pass through make read head 28 and and then magnetostriction element 35 center aim at the magnetic pole 30,32 of coding disk 26 to eliminate the impact of radial component 37.As long as meet this prerequisite, the sinusoidal relation between the resistance of magnetoresistive element 35 and the Angle Position of coding disk 26 on hand of rotation 34 just can be obtained.
So only also need to detect the change of coding disk Angle Position to detect rotating speed 12, and and then the change of detection magnetoresistive element 35 resistance.Magnetoresistive element 35 can be connected in known manner on the measurement of resistance loop be not shown specifically, routine bridge circuit as is known for this reason.According to the resistance of magnetostriction element 35, inside measurement of resistance loop, produce periodic output signal (hereinafter referred to signals of rotational speed sensor 39), it is shown specifically in figure 3.Impulse singla 42 relevant with rotating speed 12 and shown in Figure 4 can be produced in known manner in the signal processing circuit 40 being placed on read head 28 based on signals of rotational speed sensor 39, and by this output of pulse signal on regulating control 18.To this and other background information about active wheel speed sensor refer to relevant prior art, such as DE 101 46949 A1.
Referring now to the signals of rotational speed sensor 39 of the tachogen 12 of Fig. 3, Fig. 3 Fig. 2 shown in broken lines signal amplitude 44 in time 46 change curve.
Signals of rotational speed sensor 39 depends on the above-mentioned sine-shaped change curve of the resistance of magnetoresistive element 35.When introducing suitable amplitude threshold 48, such as by counting in figure 3 shown in signals of rotational speed sensor 39 intersection point 50 quantity on specified time section crossing with amplitude threshold 48 determine the rotating speed 12 that will detect.This counting is realized by the pulse 52 in output pulse signal 42 in regulating control 18, and these pulses produce based on above-mentioned intersection point 50.Produce like this in this pulse 52, make amplitude threshold 48 and the positive switching in signals of rotational speed sensor 39 intersection point 50 along 54 start a pulse 52, and lower amplitude threshold 48 and the negative switching in signals of rotational speed sensor 39 intersection point along 56 terminate this pulse 52.
Pulse 52 in the impulse singla 42 of such generation is shown specifically in the diagram, the signal amplitude 44 that Fig. 4 illustrates the impulse singla 42 of the tachogen 12 of Fig. 2 in time 46 change curve.
If but magnetoresistive element 35 radial direction contrary to above-mentioned prerequisite inaccurately aims at the magnetic pole 30,32 of coding disk 26, then the radial component 37 of the above-mentioned auxiliary field of auxiliary magnet 36 is equally also exerted one's influence on the resistance of magnetoresistive element 35.This impact can identify in signals of rotational speed sensor 39, should signals of rotational speed sensor under the impact of radial component 37 hereinafter referred to defective signals of rotational speed sensor 39 ', and to be represented by solid line in figure 3.Radial component 37 can be felt by additional pure oscillation 58 in this defective signals of rotational speed sensor 39 ', they are additional positive switchings when evaluating rotating speed 12 along 54 and negative switching along 56, and the rotating speed 12 caused is the twices when magnetostriction element 35 accurately aims at magnetic pole 30,32 of coding disk 28.These additional pure oscillations 58 are not all furnished with Reference numeral for clarity in figure 3.The rotating speed 12 (it is only recorded on individual wheel 6) that this twice is high in the traveling dynamic adjustments (device) described in beginning will cause the state of criticality safety.
Therefore in the scope of the present embodiment, the position of each intersection point 50 above-mentioned is examined its confidence level, and they are furnished with Reference numeral 50 ' below similarly for defective signals of rotational speed sensor 39 '.
This confidence level inspection can be carried out based on following hypothesis: the distance of intersection point 50 is spaced apart for constant rotating speed 12 equally also required basic formed objects ground.Even if rotating speed 12 increases or reduces, the distance of intersection point 50 also can not suddenly change, because rotating speed 12 neither suddenly change.For clarity, in the zero defect signals of rotational speed sensor 39 in Fig. 3, these distances are not by continuation mark.
And suddenly change at defective signals of rotational speed sensor 39 ' middle distance 60.This sudden change such as can identify and correspondingly represent by exporting special pulse condition 62 inside impulse singla 42 in signal processing circuit 40, makes regulating control 18 correspondingly react to defective signals of rotational speed sensor 39 ' thus.
Alternatively or additionally, in order to identify defective signals of rotational speed sensor 39 ', the figure of signals of rotational speed sensor 39 can also be analyzed.As can be seen in figure 3, two tachogen pulses 64 with little amplitude are connected the large tachogen pulse 66 that has large amplitude.These tachogen pulses 64,66 are not all furnished with Reference numeral in figure 3.If recognize this figure, then can judge above-mentioned in the defect of magnetoresistive element 35 not accurately in aligning.
Also alternatively or additionally extreme value can be evaluated in the same way, i.e. the amplitude of tachogen pulse 64,66.
Claims (10)
1. the method for monitoring rotation speed sensor (10), this tachogen is configured to, detect rotating speed (12) and with periodic output signal (39,39 ') pulse (64,66) form modulation ground exports described rotating speed, and the method comprises:
The periodic output signal (39,39 ') of-detection tachogen (10), and
-compare based on the size of the pulse (64,66) be mutually connected at least three and confidence level inspection is carried out to described output signal (39,39 ').
2. method according to claim 1, is characterized in that, described tachogen (10) is linearizing magnetoresistive transducer.
3. method according to claim 1 and 2, it is characterized in that, in order to carry out confidence level inspection, to the pulse (64 be mutually connected, 66) distance (60) and between each intersection point (50,50 ') of given amplitude threshold (48) compares.
4. method according to claim 3, is characterized in that, described amplitude threshold (48) is non-vanishing value.
5. the method according to any one of the claims, is characterized in that, in order to carry out confidence level inspection, compares the amplitude of the pulse (64,66) be mutually connected.
6. the method according to any one of the claims 3 to 5, it is characterized in that, if the fluctuation of distance (60) of described intersection point (50,50 ') and/or the fluctuation of described amplitude exceed given degree, then described confidence level inspection failure.
7. the method according to any one of the claims, is characterized in that, described method comprises: export breakdown signal when described confidence level inspection failure.
8. method according to claim 7, is characterized in that, described method comprises: based on breakdown signal, tachogen (10) is transformed into clear and definite faulty condition (62).
9. a control setup (40), this control setup is configured to perform the method according to any one of the claims.
10. sensor (10), especially a wheel speed sensor, this sensor comprises a control setup according to claim 9 (40).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013217883.2A DE102013217883A1 (en) | 2013-09-06 | 2013-09-06 | Method for monitoring a speed sensor |
| DE102013217883.2 | 2013-09-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104417513A true CN104417513A (en) | 2015-03-18 |
| CN104417513B CN104417513B (en) | 2017-04-12 |
Family
ID=52478441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410452778.6A Active CN104417513B (en) | 2013-09-06 | 2014-09-05 | Method for monitoring revolution speed transducer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104417513B (en) |
| DE (1) | DE102013217883A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771324A (en) * | 2017-01-19 | 2017-05-31 | 中国第汽车股份有限公司 | A kind of anti-interference hall-effect speed sensor detection of magnetic field structure and signal processing method |
| CN110809682A (en) * | 2017-06-28 | 2020-02-18 | 加特可株式会社 | Control device for automatic transmission and control method for automatic transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893897A (en) * | 1996-10-11 | 1999-04-13 | Robert Bosch Gmbh | Method of detecting combustion misfires by evaluating RPM fluctuations |
| US6087826A (en) * | 1996-04-18 | 2000-07-11 | Robert Bosch Gmbh | Device for detecting electromagnetic stray effects in systems with at least two inductive sensors providing periodic output signal |
| US6204658B1 (en) * | 1997-11-11 | 2001-03-20 | Wabco Gmbh | Method for evaluating an output signal of a rotational sensing device |
| EP1357364A2 (en) * | 2002-04-23 | 2003-10-29 | Siemens Aktiengesellschaft | Method for reducing errors in a position detecting apparatus |
| US20090326860A1 (en) * | 2008-06-26 | 2009-12-31 | Infineon Technologies Ag | Rotation sensing method and system |
| CN101809414A (en) * | 2007-09-28 | 2010-08-18 | 大陆汽车有限责任公司 | Pulse generator for a device, in particular for a tachograph and method for operating said pulse generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10146949A1 (en) | 2000-11-22 | 2002-06-06 | Continental Teves Ag & Co Ohg | Active magnetic sensor for electronic brake systems |
| DE102006036197A1 (en) | 2005-08-01 | 2007-02-15 | Continental Teves Ag & Co. Ohg | Device for recording wheel speed with increased intrinsic safety has primary measurement signal path(s) whose signal normally reproduces encoder movement frequency and/or has patterns representing sensor/encoder pole pairs relative speed |
| WO2012020069A1 (en) | 2010-08-10 | 2012-02-16 | Continental Teves Ag & Co. Ohg | Method and system for regulating driving stability |
-
2013
- 2013-09-06 DE DE102013217883.2A patent/DE102013217883A1/en not_active Withdrawn
-
2014
- 2014-09-05 CN CN201410452778.6A patent/CN104417513B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6087826A (en) * | 1996-04-18 | 2000-07-11 | Robert Bosch Gmbh | Device for detecting electromagnetic stray effects in systems with at least two inductive sensors providing periodic output signal |
| US5893897A (en) * | 1996-10-11 | 1999-04-13 | Robert Bosch Gmbh | Method of detecting combustion misfires by evaluating RPM fluctuations |
| US6204658B1 (en) * | 1997-11-11 | 2001-03-20 | Wabco Gmbh | Method for evaluating an output signal of a rotational sensing device |
| EP1357364A2 (en) * | 2002-04-23 | 2003-10-29 | Siemens Aktiengesellschaft | Method for reducing errors in a position detecting apparatus |
| CN101809414A (en) * | 2007-09-28 | 2010-08-18 | 大陆汽车有限责任公司 | Pulse generator for a device, in particular for a tachograph and method for operating said pulse generator |
| US20090326860A1 (en) * | 2008-06-26 | 2009-12-31 | Infineon Technologies Ag | Rotation sensing method and system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771324A (en) * | 2017-01-19 | 2017-05-31 | 中国第汽车股份有限公司 | A kind of anti-interference hall-effect speed sensor detection of magnetic field structure and signal processing method |
| CN106771324B (en) * | 2017-01-19 | 2023-08-11 | 中国第一汽车股份有限公司 | Anti-interference Hall type rotating speed sensor magnetic field detection structure and signal processing method |
| CN110809682A (en) * | 2017-06-28 | 2020-02-18 | 加特可株式会社 | Control device for automatic transmission and control method for automatic transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104417513B (en) | 2017-04-12 |
| DE102013217883A1 (en) | 2015-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11150261B2 (en) | Resolution increase in the rotational speed signal between rotational speed pulses | |
| US8751190B2 (en) | Method for ascertaining a rotational direction of a rotating body, and wheel sensor module | |
| CN105745127B (en) | Method for monitoring transmission link | |
| CN105674873B (en) | Rotary angle detecting device | |
| KR200483018Y1 (en) | Speed sensor device and electronic control unit | |
| AU2007291298A1 (en) | Speed detection for a tachograph system | |
| JP2015530065A (en) | Method and motor control apparatus for identifying an error occurrence in a motor device with an electric machine | |
| CN107402025B (en) | Status discriminator and method, physical quantity information generating means and angular transducer | |
| CN104417513A (en) | Method for monitoring revolution speed transducer | |
| CN103954799A (en) | Magnetic rotation speed sensor self-checking device and system and method thereof | |
| CN111433568B (en) | Sensor system for determining at least one rotation characteristic of a rotating element rotating about at least one axis of rotation | |
| CN104698215B (en) | Method and apparatus for the overturning trend for checking speed probe | |
| CN103097863A (en) | Method and device for detecting a deviation of a rotation rate signal of a rotation rate sensor | |
| US20140139208A1 (en) | Rotation detection device | |
| US10627422B2 (en) | Error reporting at a pulse level lying below the power supply level | |
| CN104714047A (en) | Direct measuring of a support field in a rotational speed sensor | |
| CN111102913A (en) | Online detection system for motor stator and rotor spacing change | |
| CN104417514B (en) | method for monitoring transmission path | |
| JP2019043463A (en) | Tire type determination device | |
| CN105518468B (en) | Erroneous transmissions in two-stage speed probe | |
| US11155127B2 (en) | Method for operating a tire pressure monitoring unit and tire pressure monitoring system | |
| CN113859307A (en) | Vehicle running state detection method and device and vehicle | |
| CN110412350A (en) | A kind of camshaft phase detection device, engine, motor vehicle and method | |
| JP7332794B2 (en) | Train speed control system and train speed control method | |
| JPS6116013B2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230202 Address after: Hannover Patentee after: Continental Automotive Technology Co.,Ltd. Address before: Frankfurt, Germany Patentee before: CONTINENTAL TEVES AG & Co. OHG |