CN104115026A - Driver assistance device having an ultrasonic sensor, motor vehicle and method for operating an ultrasonic sensor - Google Patents
Driver assistance device having an ultrasonic sensor, motor vehicle and method for operating an ultrasonic sensor Download PDFInfo
- Publication number
- CN104115026A CN104115026A CN201380009670.3A CN201380009670A CN104115026A CN 104115026 A CN104115026 A CN 104115026A CN 201380009670 A CN201380009670 A CN 201380009670A CN 104115026 A CN104115026 A CN 104115026A
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- Prior art keywords
- ultrasonic sensor
- signal
- sensor
- oscillator
- control device
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52004—Means for monitoring or calibrating
- G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2205/00—Application of thermometers in motors, e.g. of a vehicle
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2217/00—Temperature measurement using electric or magnetic components already present in the system to be measured
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/87—Combinations of sonar systems
- G01S15/876—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2015/932—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention relates to a driver assistance device (2) for a motor vehicle (1), having an ultrasonic sensor (3) which has a diaphragm (7) for emitting ultrasonic waves and an oscillator (10) for generating an oscillator signal (9) to excite the diaphragm (7), and having a control device (4) for actuating the ultrasonic sensor (3), wherein the oscillator (10) is a temperature-dependent oscillator (10), with the result that the frequency of the oscillator signal (9) is dependent on the ambient temperature of the ultrasonic sensor (3), and the control device (4) is designed to determine the ambient temperature on the basis of a sensor signal (12), generated on the basis of the oscillator signal (9), of the ultrasonic sensor (3).
Description
Technical field
The present invention relates to the driver assistance device for motor vehicles, this driver assistance device has ultrasonic sensor and for the control device of actuating ultrasonic sensor.Ultrasonic sensor comprise for transmit hyperacoustic diaphragm (diaphragm) and be designed to produce oscillator signal or clock signal with excitation diaphragm oscillator.In addition, the present invention relates to have the motor vehicles of such driver assistance device, and for the method for the ultrasonic sensor of operating motor vehicle.
Background technology
In motor vehicles, using ultrasonic sensor has been prior art.Ultrasonic sensor on the one hand for measure and motor vehicles between spacing, on the other hand for measuring the spacing with the barrier of its surrounding environment.Ultrasonic sensor is normally known as a part for parking assisting system, and described parking assisting system is for driver assistance operating motor vehicle, and while specifically parking in parking position, driver assistance operates vehicle.The spacing of measuring is exported to driver by parking assisting system or driver assistance device, for example, and by means of the mode showing or additionally by means of the mode of loudspeaker.
For the object of the spacing between measuring machine motor vehicle and barrier, this relates to measures hyperacoustic time delay.Ultrasonic sensor transmits ultrasound wave, and then this ultrasound wave is reflected by barrier and be back to ultrasonic sensor.Whether hyperacoustic amplitude that the ultrasound wave of ultrasonic sensor thereby reception reflection and detection receive is higher than the threshold value of stipulating.If higher than the threshold value of regulation, determine hyperacoustic time delay, and this time delay is for inferring the spacing with barrier.Also be known as along with environment temperature and change this time delay, because the speed of sound depends on temperature.Therefore, the time delay that need to detect based on corresponding current environmental temperature compensation, thus spacing can be measuredly more accurate.In modern vehicle, environment temperature is by means of one or more temperature sensor senses, and then described temperature sensor passes to control device by the temperature value of measurement.Control device is by taking environment temperature and the time delay of compensating measure into account.In other words, the spacing of measurement thereby compensated.
In motor vehicles, there is no temperature sensor or additionally in the situation that do not provide communication chain to there will be problem between temperature sensor and the control device of ultrasonic sensor.Therefore, control device not can be used for the temperature value of the available measurement of time in corrective delay.For example, in this case, the variation of the oscillation behavior by the diaphragm from sensing determines that the method for environment temperature provides remedial measures.
Summary of the invention
The object of the invention is to be illustrated in the situation of the driver assistance device that starts the universal class quoted herein, how temperature compensation is in low technical sophistication degree, the solution of especially carrying out in the situation that not needing serviceability temperature sensor.
The present invention also also realizes by means of the method with the feature of basis independent claims separately by means of driver assistance device, motor vehicles.Advantageous embodiment of the present invention is the theme of dependent claims, instructions and accompanying drawing.
Creative driver assistance device for motor vehicles has ultrasonic sensor and the control device that is designed to activate described ultrasonic sensor.Ultrasonic sensor has the oscillator that encourages the oscillator signal of diaphragm for transmitting hyperacoustic diaphragm and being provided for.Oscillator signal because of but for encouraging the clock signal of diaphragm.Oscillator is the oscillator based on temperature, and in this case, the frequency of oscillator signal depends on the environment temperature of ultrasonic sensor or changes along with environment temperature.Control device can use sensor signal from ultrasonic sensor to determine environment temperature, and described sensor signal produces based on oscillator signal.
According to the present invention, therefore in particular for not working out measures by means of temperature sensor obtains the measurement of environment temperature, environment temperature obtains the oscillator signal from based on temperature or clock signal.The diaphragm that the present invention has used ultrasonic sensor is this fact based on temperature normally, the resonant frequency that this means diaphragm depends on environment temperature, and means that first the oscillator that can use based on temperature to mate the resonant frequency of the frequency of oscillator signal and diaphragm.Therefore, as usual in order to realize maximum transmitted sound levels, thereby transmission frequency tracked be the corresponding resonant frequency based on environment temperature of diaphragm.This can also by use make based on according to resonance signal, produce and from the sensor signal that ultrasonic sensor is passed to control device, determine environment temperature.Reason is that this frequency based on coming from the oscillator signal of oscillator or the sensor signal of clock signal changes along with environment temperature.This can be detected and for determining environment temperature by control device.Therefore, the invention enables environment temperature to determine with minimum technical sophistication degree, do not need especially independent temperature sensor.This is because environment temperature can be determined by calculating ad hoc.In this case, determining of temperature is also especially accurately, this means that also can be compensated with maximal accuracy based on environment temperature hyperacoustic time delay.
Preferably, sensor signal is message (message) signal or is known as the telegram that is passed to control device from ultrasonic sensor.Such message signal comprises the relevant information of sensor being stored in ultrasonic sensor.For example, a such information now can setting threshold, and hyperacoustic amplitude and this threshold value that ultrasonic sensor receives compare.In any case such message signal is passed to control device from ultrasonic sensor in motor vehicles.In any case this means that control device can determine environment temperature from the message signal conventionally existing, the bandwidth of the communication port between ultrasonic sensor and control device especially adversely do not affected by extra signal.
Yet sensor signal can be essentially any signal from ultrasonic sensor, this signal is produced and is passed to control device by oscillator signal.
As already explained, control device is particularly preferred by definite environment temperature as the basis that compensates the time delay of hyperacoustic measurement.This is because hyperacoustic velocity of propagation changes along with environment temperature.Thereby this compensation allows to obtain the spacing on the one hand and between motor vehicles, the extreme of the spacing on the other hand and between barrier is measured accurately.
Preferably, ultrasonic sensor is not the wish transmission of sensor signals according to oneself, but only depends on the request of self-control device.This means control device can transferring command to ultrasonic sensor, ultrasonic sensor sends sensor signal to control device based on this order.Therefore, sensor signal only, when its controlled device request, is for example transmitted when control device intention is determined current environmental temperature.
For example, control device can, with predetermined time interval, send a request to ultrasonic sensor especially and periodically.
If the frequency of oscillator signal depends on environment temperature, the duration of the bit of sensor signal is also along with variation of ambient temperature so.In one embodiment, therefore for definite environment temperature of the duration of at least one bit based on sensor signal, work out measures.This is the method for special low complex degree, the duration of the bit that it only asks to want measured, and environment temperature can from this duration for example by the table that stores or additionally mathematical formulae determine.
In order to improve definite precision of environment temperature, control device can be from duration separately of a plurality of bits (particularly all bits of sensor signal) of sensor signal and calculating prolongeding time mean value.Then control device can determine environment temperature based on duration mean value.In this case, environment temperature determined with high precision, because do not use individual bit but used a plurality of bits to determine environment temperature.
Alternatively, environment temperature that also can be definite for the duration based on whole sensor signal works out measures.For example, if the quantity of the bit of known specific message signal, the measurement of the duration of whole sensor signal is the simplest option for definite environment temperature.This only needs to determine the duration of sensor signal, and environment temperature can directly be determined based on this duration.
In addition, then, in order to increase precision, can work out measures to control device, with the duration calculating mean value separately of a plurality of sensor signals in succession from from ultrasonic sensor and determine environment temperature based on this mean value.
Control device always determines that from the sensor signal separately of at least two ultrasonic sensors of driver assistance device environment temperature is found to be very advantageously.Reason is, motor vehicles are provided with between four to eight conventionally, and sometimes even 12 ultrasonic sensors are therein.If mean value is formed by the ultrasonic sensor of all installations, precision can be increased to maximum.For example, this can show as: first, from the duration calculating mean value of the sensor signal separately of a plurality of ultrasonic sensors, then based on this common duration mean value, determine environment temperature.Yet, for definite environment temperature, can also make: first all the sensors signal from corresponding ultrasonic sensor is used for determining temperature value separately, and then environment temperature is confirmed as the mean value of independent temperature value.
Creative motor vehicles comprise creative driver assistance device.
The invention still further relates at the oscillator of ultrasonic sensor for the method that operates the ultrasonic sensor of motor vehicles under the situation of oscillator signal is provided, this oscillator signal for encourage ultrasonic sensor for transmitting hyperacoustic diaphragm.Oscillator based on temperature depends on the situation of the environment temperature of ultrasonic sensor for the frequency of oscillator signal wherein.Oscillator signal is for determining environment temperature.
The preferred embodiment representing with reference to creative driver assistance device and the advantage of described embodiment are correspondingly applicable to creative motor vehicles and creative method.
Other features of the present invention can be found in the description of claim, accompanying drawing and accompanying drawing.The feature of quoting in the description of all features of quoting in above description and the combination of feature and following accompanying drawing and/or independent accompanying drawing and Feature Combination not only can be for the combinations of pointing out respectively, can also be for other combinations or they self.
Accompanying drawing explanation
The present invention is referring now to accompanying drawing, and is described by preferred exemplary embodiment, in the accompanying drawings:
Fig. 1 shows has the indicative icon of the motor vehicles of driver assistance device according to an embodiment of the invention; And
Fig. 2 shows the indicative icon of the ultrasonic sensor of driver assistance device.
Embodiment
Motor vehicles 1 shown in Fig. 1 are the automobiles in exemplary embodiment.Motor vehicles 1 have driver assistance device 2, and this device is the form of parking assisting system.Driver assistance device 2 is for driver assistance operating motor vehicle 1.Motor vehicles have a plurality of ultrasonic sensors 3, and this sensor becomes distributed arrangement at the front bumper of motor vehicles 1 with on rear bumper.In Fig. 1, layout and the quantity of the ultrasonic sensor 3 on motor vehicles 1 only illustrate in the mode of example.Described quantity and layout can change based on embodiment.Therefore for example, ultrasonic sensor 3 is only arranged on front bumper or is only arranged on rear bumper is possible, or for example can use than the more or less ultrasonic sensor of ultrasonic sensor 3 shown in Fig. 1.
For actuating ultrasonic sensor 3, driver assistance device 2 comprises control device 4.Alternatively, can also be on the one hand for front ultrasonic sensor 3 provides independent control device 4, on the other hand for rear ultrasonic sensor 3 provides independent control device 4.Control device 4 is controllers and for actuating ultrasonic sensor 3.Control device 4 is electrically connected to ultrasonic sensor 3 by means of the communication bus 5 of independent signal wire or motor vehicles 1, makes the data communication between control device 4 and independent ultrasonic sensor 3 become possibility.
Ultrasonic sensor 3 can transmit ultrasound wave and again receive the ultrasound wave returning.Based on hyperacoustic time delay, control device 4 can calculate on the one hand and motor vehicles between spacing, calculate on the other hand and its surrounding environment in barrier between spacing.These spacing can by means of output unit 6, for example, be exported by means of loudspeaker and/or by means of display.
The Basic Design of the ultrasonic sensor 3 using is shown in the diagram that schematically also extreme is abstract of Fig. 2.Ultrasonic sensor 3 has for transmitting hyperacoustic diaphragm 7.For example, diaphragm 7 can be formed by aluminium.The resonant frequency of diaphragm 7 is known as and depends on the environment temperature of ultrasonic sensor 3 and therefore along with environment temperature, change.In order to communicate by letter with central control unit 4, ultrasonic sensor 3 comprises control module 8, microcontroller for example, and it is electrically coupled to central control unit 4 via communication bus 5.Control module 8 is by the clock signal producing by oscillator 10 or oscillator signal 9 and timing.Oscillator signal 9 is also for encouraging diaphragm 7, as schematically illustrated by arrow diagramming 11 in Fig. 2.
For in each case, at the resonant frequency place of diaphragm 7 excitation diaphragm 7, oscillator 10 is the oscillator based on temperature similarly, and the oscillator signal 9 that comes from this Vib. has the frequency that depends on temperature.Oscillator 10 mates with diaphragm 7, makes the frequency of oscillator signal 9 always identical with the resonant frequency of diaphragm 7.Because the frequency of oscillator signal 9 depends on environment temperature, so the frequency of the sensor signal 12 of control module 8 outputs also depends on temperature.According to sensor signal 12, then central control unit 4 determines environment temperature.Corresponding current environmental temperature is then for compensating the time delay of hyperacoustic measurement or the interval of measurement.
As already explained, control module 8 timing by means of oscillator signal 9.This means, particularly, the message that is delivered to control device 4 by control module 8 also has the frequency identical with oscillator signal 9 or produces based on oscillator signal 9.Therefore control module 8 can transmission of sensor signals 12 arrive central control unit 4, and this sensor signal produces based on oscillator signal 9.This sensor signal 12 can be the binary coded signal that comprises a plurality of bits.
Sensor signal 12 comprises in particular the information that sensor is relevant and from ultrasonic sensor 3, is passed to the message signal of control device 4.For example, such telegram can comprise the information about current threshold value in ultrasonic sensor 3, and the hyperacoustic amplitude receiving compares with it.The such message signal conventionally request based on coming from control device 4 is transmitted by ultrasonic sensor 3.For example, such message signal has the length of 64 bits.Control device 4 thereby can transmit the signal of request or order to ultrasonic sensor 3, makes the then basis using this order as transmission of sensor signals 12 to control device 4 of ultrasonic sensor 3.Yet in order to determine the object of environment temperature, sensor signal 12 or any sensor signal 12 with any information are enough for control device 4.Only requirement is that ultrasonic sensor 3 is passed to control device 4 by the signal producing based on oscillator signal 9.
Thereby control device 4 is determined current environment temperature based on sensor signal 12.For this reason, for example, length or the duration of individual bit that can survey sensor signal 12, and can determine environment temperature based on this duration.If mean value is the bit by a plurality of transmission, form, thermometric precision can be improved.
If the quantity of the bit of known sensor signal 12 in control device 4, can be used the duration of whole sensor signal 12 to determine environment temperature.The quantity of the bit of sensor signal 12 also can be measured in control device 4.
In order to maximize precision, from the sensor signal separately 12 of at least two ultrasonic sensors 3 (particularly from all ultrasonic sensors 3), be taken into account to determine environment temperature.
Oscillator 10 can be designed so that the frequency of oscillator signal 9 changes based on temperature.This frequency thereby corresponding to the resonant frequency of diaphragm 7.
Claims (11)
1. the driver assistance device for motor vehicles (1) (2), there is ultrasonic sensor (3) and there is the control device (4) for activating described ultrasonic sensor (3), described ultrasonic sensor has for transmitting hyperacoustic diaphragm (7) and for generation of the oscillator (10) of oscillator signal (9) of the described diaphragm of excitation (7)
It is characterized in that
Described oscillator (10) is the oscillator (10) based on temperature, the frequency that this means described oscillator signal (9) is the environment temperature that depends on described ultrasonic sensor (3), and described control device (4) is designed to use sensor signal (12) from described ultrasonic sensor (3) to determine described environment temperature, and described sensor signal produces based on described oscillator signal (9).
2. driver assistance device according to claim 1 (2),
It is characterized in that
Described sensor signal (12) is the message signal with sensor relevant information, and described message signal can be passed to described control device (4) from described ultrasonic sensor (3).
3. driver assistance device according to claim 1 and 2 (2),
It is characterized in that
Described control device (4) is designed to using definite environment temperature as for measuring the basis of the compensation of described hyperacoustic time delay.
4. according to the driver assistance device (2) described in aforementioned claim,
It is characterized in that
Described control device (4) is designed to transferring command to described ultrasonic sensor (3), and described ultrasonic sensor (3) is passed to described control device (4) based on described order by described sensor signal (12).
5. according to the driver assistance device (2) described in aforementioned claim,
It is characterized in that
Described environment temperature can be based on described sensor signal (12) at least one bit duration and determined.
6. driver assistance device according to claim 5 (2),
It is characterized in that
Described control device (4) is designed to the corresponding duration calculating prolongeding time mean value according to a plurality of bits, particularly all bits of described sensor signal (12), and determines described environment temperature based on described duration mean value.
7. according to the driver assistance device (2) described in claim 1 to 4,
It is characterized in that
Described environment temperature can be based on whole sensor signal (12) duration and determine.
8. driver assistance device according to claim 7 (2),
It is characterized in that
Described control device (4) is designed to according to the duration calculating mean value separately of a plurality of sensor signals in succession from described ultrasonic sensor (3) and determines described environment temperature based on this mean value.
9. according to the driver assistance device (2) described in aforementioned claim,
It is characterized in that
Described control device (4) is designed to according to determining described environment temperature from the sensor signal separately of at least two ultrasonic sensors (3).
10. motor vehicles (1), it has according to the driver assistance device (2) described in aforementioned claim.
11. 1 kinds of methods for the ultrasonic sensor (3) of operating motor vehicle (1), the oscillator (10) of wherein said ultrasonic sensor (3) is for generation of oscillator signal (9), this oscillator signal be used for encouraging described ultrasonic sensor (3) for transmitting hyperacoustic diaphragm (7)
It is characterized in that
The oscillator (10) using is the oscillator (10) based on temperature, in this case, the frequency of described oscillator signal (9) depends on the environment temperature of described ultrasonic sensor (3), and described oscillator signal (9) is for determining described environment temperature by means of control device (4).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012002979A DE102012002979A1 (en) | 2012-02-15 | 2012-02-15 | Driver assistance device with an ultrasonic sensor, motor vehicle and method for operating an ultrasonic sensor |
| DE102012002979.9 | 2012-02-15 | ||
| PCT/EP2013/052024 WO2013120706A1 (en) | 2012-02-15 | 2013-02-01 | Driver assistance device having an ultrasonic sensor, motor vehicle and method for operating an ultrasonic sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104115026A true CN104115026A (en) | 2014-10-22 |
| CN104115026B CN104115026B (en) | 2017-10-31 |
Family
ID=47633070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380009670.3A Expired - Fee Related CN104115026B (en) | 2012-02-15 | 2013-02-01 | Driver assistance device, motor vehicles with ultrasonic sensor and the method for operating ultrasonic sensor |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2815250A1 (en) |
| CN (1) | CN104115026B (en) |
| BR (1) | BR112014018840A8 (en) |
| DE (1) | DE102012002979A1 (en) |
| WO (1) | WO2013120706A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135677A (en) * | 2018-04-04 | 2020-12-25 | 乔迪·G·罗宾斯 | Separation of minerals by specific gravity |
| CN113272680A (en) * | 2018-11-19 | 2021-08-17 | 法雷奥开关和传感器有限责任公司 | Method for determining state of ultrasonic sensor diaphragm and analysis system |
| CN114236517A (en) * | 2021-12-21 | 2022-03-25 | 纵目科技（上海）股份有限公司 | Ambient temperature acquisition method and device for intelligent driving |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012215493B4 (en) * | 2012-08-31 | 2023-10-26 | Robert Bosch Gmbh | Increasing the robustness of ultrasound systems |
| DE102013015410A1 (en) * | 2013-09-17 | 2015-03-19 | Valeo Schalter Und Sensoren Gmbh | Method for detecting a blocked state of an ultrasonic sensor Ultrasonic sensor device and motor vehicle |
| DE102015106408A1 (en) | 2015-04-27 | 2016-10-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Sensor arrangement for detecting a state of a roadway with an ultrasonic sensor, driver assistance system, motor vehicle and associated method |
| DE102018124024A1 (en) | 2018-09-28 | 2020-04-02 | Valeo Schalter Und Sensoren Gmbh | Method for operating an ultrasonic sensor of a vehicle with reduced diagnosis in a measuring operation of the ultrasonic sensor, and ultrasonic sensor device |
| DE102021114988A1 (en) | 2021-06-10 | 2022-12-15 | Valeo Schalter Und Sensoren Gmbh | METHOD OF OPERATING AN ULTRASONIC SENSOR, COMPUTER PROGRAM PRODUCT, ULTRASONIC SENSOR SYSTEM AND VEHICLE |
| DE102021114989A1 (en) | 2021-06-10 | 2022-12-15 | Valeo Schalter Und Sensoren Gmbh | METHOD OF DETERMINING A TEMPERATURE OF A MEMBRANE OF AN ULTRASONIC SENSOR, COMPUTER PROGRAM PRODUCT, ULTRASONIC SENSOR AND VEHICLE |
| DE102021214175A1 (en) | 2021-12-13 | 2023-06-15 | Robert Bosch Gesellschaft mit beschränkter Haftung | Ultrasound-based measurement of ambient temperatures |
| DE102023101519A1 (en) * | 2023-01-23 | 2024-07-25 | Valeo Schalter Und Sensoren Gmbh | METHOD AND DEVICE FOR MEASURING THE EXTERNAL ENVIRONMENT OF A VEHICLE USING ULTRASOUND |
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| DE1904853A1 (en) * | 1968-01-31 | 1969-09-11 | Anvar | Device for measuring temperatures from a distance |
| EP1150135A1 (en) * | 2000-04-28 | 2001-10-31 | Valeo Schalter und Sensoren GmbH | Parking assistance device with temperature compensation |
| EP2290343A2 (en) * | 2009-08-27 | 2011-03-02 | Valeo Schalter und Sensoren GmbH | Method and device for determining the ambient temperature of an ultrasound sensor |
| CN102016635A (en) * | 2008-05-08 | 2011-04-13 | 罗伯特·博世有限公司 | Driver assistance method for moving a motor vehicle and driver assistance device |
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| JPS6333681A (en) * | 1986-07-29 | 1988-02-13 | Fuji Electric Co Ltd | Compensation of temperature characteristics |
| JPH1054872A (en) * | 1996-08-08 | 1998-02-24 | Tokico Ltd | Ultrasonic distance meter |
| JP2007183185A (en) * | 2006-01-06 | 2007-07-19 | Denso Corp | Ultrasonic sensor |
-
2012
- 2012-02-15 DE DE102012002979A patent/DE102012002979A1/en not_active Withdrawn
-
2013
- 2013-02-01 EP EP13702450.1A patent/EP2815250A1/en not_active Withdrawn
- 2013-02-01 BR BR112014018840A patent/BR112014018840A8/en not_active IP Right Cessation
- 2013-02-01 CN CN201380009670.3A patent/CN104115026B/en not_active Expired - Fee Related
- 2013-02-01 WO PCT/EP2013/052024 patent/WO2013120706A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1904853A1 (en) * | 1968-01-31 | 1969-09-11 | Anvar | Device for measuring temperatures from a distance |
| EP1150135A1 (en) * | 2000-04-28 | 2001-10-31 | Valeo Schalter und Sensoren GmbH | Parking assistance device with temperature compensation |
| CN102016635A (en) * | 2008-05-08 | 2011-04-13 | 罗伯特·博世有限公司 | Driver assistance method for moving a motor vehicle and driver assistance device |
| EP2290343A2 (en) * | 2009-08-27 | 2011-03-02 | Valeo Schalter und Sensoren GmbH | Method and device for determining the ambient temperature of an ultrasound sensor |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112135677A (en) * | 2018-04-04 | 2020-12-25 | 乔迪·G·罗宾斯 | Separation of minerals by specific gravity |
| US11267000B2 (en) | 2018-04-04 | 2022-03-08 | Jody G. Robbins | Separation of minerals by specific gravity |
| CN113272680A (en) * | 2018-11-19 | 2021-08-17 | 法雷奥开关和传感器有限责任公司 | Method for determining state of ultrasonic sensor diaphragm and analysis system |
| CN113272680B (en) * | 2018-11-19 | 2024-05-03 | 法雷奥开关和传感器有限责任公司 | Method for determining diaphragm state of ultrasonic sensor and analysis system |
| US12000966B2 (en) | 2018-11-19 | 2024-06-04 | Valeo Schalter Und Sensoren Gmbh | Method and analysis system for determining a state of a diaphragm of an ultrasound sensor |
| CN114236517A (en) * | 2021-12-21 | 2022-03-25 | 纵目科技（上海）股份有限公司 | Ambient temperature acquisition method and device for intelligent driving |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2815250A1 (en) | 2014-12-24 |
| BR112014018840A2 (en) | 2017-06-20 |
| BR112014018840A8 (en) | 2017-07-11 |
| CN104115026B (en) | 2017-10-31 |
| WO2013120706A1 (en) | 2013-08-22 |
| DE102012002979A1 (en) | 2013-08-22 |
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