EP1751728A1 - Assistenzsystem für kraftfahrzeuge - Google Patents
Assistenzsystem für kraftfahrzeugeInfo
- Publication number
- EP1751728A1 EP1751728A1 EP05747888A EP05747888A EP1751728A1 EP 1751728 A1 EP1751728 A1 EP 1751728A1 EP 05747888 A EP05747888 A EP 05747888A EP 05747888 A EP05747888 A EP 05747888A EP 1751728 A1 EP1751728 A1 EP 1751728A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- warning
- assistance system
- driver
- threshold
- warning threshold
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
Definitions
- the invention relates to an assistance system for motor vehicles with at least one monitoring unit that records the exterior, in particular in the direction of travel of the motor vehicle.
- the Intelligent ADAS (Advanced Driver Assistance Systems) driver assistance systems will take on an increasingly important position in modern motor vehicles of the future.
- the first known system applications are based on lane detection. These are: an LD (lane depature warning) lane departure warning, in particular acoustically, visually and / or haved; and a K (lane keep) steering intervention, which keeps the vehicle on track.
- a warning zone 10 If the wheels of the vehicle are within a defined warning zone 10, the so-called “warning zone”, a warning must be issued, otherwise no warning may be issued (cf. FIG. 1).
- the defined warning zone 10 is delimited by an earliest warning line 11, the so-called “earliest warning line”, and a latest warning line 12, the so-called “latest warning line”.
- the exact time of the warning within zone 10 is determined by a definable warning threshold 13, the so-called "warning threshold”.
- the warning-free zone of a lane 14, the so-called “no warning zone” lies between the defined warning zones.
- the latest warning line 12 is 0.3 m outside the lane marking 20 in passenger vehicles (passenger cars), the so-called "lane boundary".
- the position of the earliest warning line 11 depends on the speed of approach ("rate of dependency") V of the vehicle 1 to the lane boundary 20.
- FIGS. 2 and 3 show the respective position in detail. These are 0.75 m at V less than 0.5 m / s, a linear increase from 0.75 to 1.5 m at V between 0.5 to 1 m / s and 1.5 m at V greater 1 m / s.
- the draft of the ISO standard specifies conditions under which the position of the warning threshold can be shifted within the defined warning zone or the warning can be suppressed entirely.
- the position or location of the warning threshold 13 can according to the ISO
- Draft can be moved within the defined warning zone 10 in the following cases: once due to a manual setting by the driver; and / or in a curve to the outside to avoid warnings during curve cutting.
- the driver can activate and deactivate the system as a whole.
- the object of the present invention is to provide an improved assistance system which avoids the aforementioned disadvantages.
- measures must be specified which increase the sensitivity of the system and in this respect the acceptance of such systems.
- the invention lies in generic assistance systems for motor vehicles with at least one exterior, in particular their monitoring unit in the direction of travel of the motor vehicle.
- a warning zone is defined in the monitored outside area to the side of the lane, which is delimited by an earliest warning line and a latest warning line that includes the respective lane marking or boundary.
- An evaluation unit for the data transmitted by the monitoring unit generates a warning signal for an acoustic, visual and / or hasty warning and / or a steering intervention when the evaluation unit detects that a defined warning threshold lying within the warning zone has been passed.
- the assistance system builds on the generic one in that the warning signal for a warning and / or an intervention in the steering system is only issued as a function of further scheduled, adaptive conditions.
- a range that can be set by the driver after driving off.
- the first signs of fatigue also only start after an hour or more.
- the assistance system warns from 5:00 p.m. to 7:00 a.m. preferably immediately; during 7:00 a.m. to 5:00 p.m. the warning is given only one hour after the start of the journey.
- time periods can also be made adaptable by the user, which is not only advantageous for shift workers, for example.
- the position of the warning threshold is shifted over time from a defined starting position towards the earliest warning line.
- the warning threshold can either be started after an adjustable period of time, and / or the warning threshold is continuously shifted over the set period of time from an external position within the permitted warning zone towards the earliest warning line.
- the end position of the position of the warning threshold would then advantageously be a defined threshold position ("default position") that can be set by the driver or vehicle manufacturer.
- the time period for suppressing the warning or shifting the position of the warning threshold is preferably also dependent on the weather and the lighting conditions.
- the weather can preferably be assessed on the basis of the time of day and / or - insofar as the monitoring unit comprises a camera system - on the basis of the camera parameters set by the exposure control, such as exposure time, amplification, shape of the characteristic curve, etc.
- the assessment can, for example, be stored in the device in the form of a table. If the viewing tents can be classified as long in relation to the time of day, ie there are "dark" lighting conditions, the warning threshold can be shifted towards the earliest warning line, which is equivalent to an increase in sensitivity. The starting position and / or the change in position of the warning threshold can expediently also be shifted depending on the calendar date.
- the position of the warning threshold is shifted depending on the activation of a windshield wiper lever or the signal of a rain sensor.
- these settings or values are available, for example, on the vehicle's CAN bus, which advantageously further increases the sensitivity of the assistance system.
- the number of times the warning threshold is exceeded is measured, for example, per minute or in another defined time unit, and the warning signal is only output when a further threshold, for example 2 injuries per minute, is exceeded.
- the position of the warning threshold is shifted in the direction of the earliest first warning line, which advantageously leads to a more sensitive warning threshold.
- the starting position and / or the change in position of the warning threshold can be individually adapted to a defined driver.
- the position of the vehicle in the lane is measured and statistically evaluated over an adjustable period of time.
- the behavior of the driver can advantageously be derived from this.
- the warning threshold increases set to "sensitive” or "insensitive". For drivers who usually drive near the center of the lane, this leads to a more sensitive setting than for drivers who commute more in the lane.
- the described adaptation can basically take place within certain limits in order to detect different states of the same driver. Example: in the morning the driver is still fresh and drives precisely on the lane. In the evening, the driver is tired and only reacts after larger deposits from the middle of the lane.
- the described adaptation can be carried out individually for each driver. The individual data values are then saved in the system. After a driver identification (eg by the key used, the fingerprint and / or by means of a face recognition), the driver-specific parameterization is carried out.
- the warning threshold is set depending on the width of the lane. In narrow lanes the warning threshold is placed further out (“less sensitive”), in wide lanes further inside (“more sensitive”).
- the area next to the Vehicle monitored eg only left, only right or left and right.
- the range can be approx. 9 (blind spot) or even more (up to 150 m), if at least one vehicle is detected next to your own vehicle or at least one vehicle that is quickly in another lane or in your own lane from behind approximates, the warning threshold can be set more sensitively, which advantageously equates to risk-adaptive parameterization.
- a camera or another system recognizes vehicles in front, determines the distance and the relative speed to them, and thus recognizes overtaking processes to suppress warnings.
- Another similar scenario is the cut-in process, for example following an overtaking process.
- signs of driver fatigue that other sensors provide are evaluated. If the driver shows signs of tiredness, the system can be set to be "more sensitive".
- Known sensors / methods for the detection of fatigue are: interior camera for recognizing the blink of an eye, frequency of movement of the gas, clutch, brake and steering wheel or the like.
- the system is deactivated in particular for acoustic warnings (since the driver is not sleeping) or only warning signals for visual warnings are output (since the driver may be in a conversation nevertheless inattentive).
- the warning in bends can in principle be deactivated and / or modified in order to avoid false warnings (curve cutting), especially since cornering generally demands increased attention from the driver anyway.
- the radius of the curve ahead can be recognized and vehicle dynamics models can be used to estimate whether the vehicle could drive through the curve at the current speed.
- a warning could also be issued before the warning threshold was reached and / or the steering, brakes, etc. of the motor vehicle could be intervened.
- the present invention advantageously makes an important improvement in that taking driver-adaptive conditions into account advantageously increases the acceptance of such systems and leads to economically interesting products.
- FIG. 1 shows a motor vehicle equipped with an assistance system according to the invention in its vehicle surroundings
- FIG. 3 shows the sizes corresponding to FIG. 2 in a table.
- the motor vehicle is equipped with an assistance system according to the invention.
- the assistance system comprises at least one monitoring unit 4, which detects the exterior 3, in particular in the direction of travel 2 of the motor vehicle 1.
- the monitoring units 4 are preferably units with 2D or 3D image detection sensors, such as in mono, stereo and / or long-term cameras, ultrasonic sensors, Radar sensors, lidar sensors and / or the like.
- a warning zone 10 is defined to the side of the road 14, which is delimited by an earliest warning line 11 and a latest warning line 12 comprising the respective lane marking or boundary 20.
- the BV computer is connected to the vehicle, for example, via CAN bus and, according to the invention, can preferably read out values such as speed, brake signal, turn signal, steering angle and, if available, evaluations of other sensors, such as a "blind spot" camera, ACC radar and the like.
- the evaluation unit 5 When the motor vehicle 1 detects a defined warning threshold 13 lying within the warning zone 10 and which can be changed by the evaluation unit 5, the evaluation unit 5 generates a warning signal for the data transmitted by the monitoring unit 4.
- FIG. 2 shows the varying distance of the earliest warning line 11 from the lane limitation 20 as a function of the approach speed V of the motor vehicle 1.
- FIG. 3 shows the corresponding quantities plotted in FIG. 2 in a table.
- the warning signal for a warning and / or an intervention in the steering system is only output as a function of further planned driver-adaptive conditions, as a result of which assistance systems according to the invention advantageously take into account the needs of the driver and are therefore perceived as more pleasant.
- the present invention makes an important improvement in that the consideration of driver-adaptive conditions advantageously increases the acceptance of such systems and leads to economically interesting products for the first time.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Control Of Multiple Motors (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004026590A DE102004026590A1 (de) | 2004-06-01 | 2004-06-01 | Assistenzsystem für Kraftfahrzeuge |
| PCT/EP2005/052224 WO2005119624A1 (de) | 2004-06-01 | 2005-05-13 | Assistenzsystem für kraftfahrzeuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1751728A1 true EP1751728A1 (de) | 2007-02-14 |
| EP1751728B1 EP1751728B1 (de) | 2008-01-02 |
Family
ID=34968861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP05747888A Expired - Lifetime EP1751728B1 (de) | 2004-06-01 | 2005-05-13 | Assistenzsystem für kraftfahrzeuge |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7737832B2 (de) |
| EP (1) | EP1751728B1 (de) |
| JP (1) | JP4320045B2 (de) |
| AT (1) | ATE382927T1 (de) |
| DE (2) | DE102004026590A1 (de) |
| ES (1) | ES2300026T3 (de) |
| WO (1) | WO2005119624A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009050941A1 (de) | 2009-10-28 | 2011-05-05 | Man Nutzfahrzeuge Ag | Fahrerassistenzsystem für ein Nutzfahrzeug |
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| DE102005026479B4 (de) * | 2005-06-09 | 2017-04-20 | Daimler Ag | Verfahren zur Unaufmerksamkeitserkennung in Abhängigkeit von mindestens einem fahrerindividuellen Parameter |
| DE102005058130A1 (de) * | 2005-11-30 | 2007-06-06 | Valeo Schalter Und Sensoren Gmbh | Warnsystem für ein Kraftfahrzeug |
| DE102005057267A1 (de) * | 2005-12-01 | 2007-06-06 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Fahrerzustandserkennung |
| CN100403332C (zh) * | 2006-11-02 | 2008-07-16 | 东南大学 | 用于车道偏离报警的车道线鲁棒识别方法 |
| KR101063711B1 (ko) * | 2007-07-16 | 2011-09-07 | 기아자동차주식회사 | 차량 경보 시스템 |
| US9268401B2 (en) | 2007-07-30 | 2016-02-23 | University Of Utah Research Foundation | Multidirectional controller with shear feedback |
| EP2183660B1 (de) * | 2007-07-30 | 2019-06-26 | University of Utah Research Foundation | Scherberührungsanzeigesystem für die kommunikationsrichtung und andere berührungshinweise |
| WO2009030420A1 (de) * | 2007-08-29 | 2009-03-12 | Valeo Schalter Und Sensoren Gmbh | Verfahren und anordnung zur auswertung von sensorbildern bei bildauswertenden umfelderkennungssystemen und einer auswertung von bahnkurven |
| US8326462B1 (en) | 2008-03-12 | 2012-12-04 | University Of Utah Research Foundation | Tactile contact and impact displays and associated methods |
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2004
- 2004-06-01 DE DE102004026590A patent/DE102004026590A1/de not_active Ceased
-
2005
- 2005-05-13 WO PCT/EP2005/052224 patent/WO2005119624A1/de not_active Ceased
- 2005-05-13 AT AT05747888T patent/ATE382927T1/de not_active IP Right Cessation
- 2005-05-13 DE DE502005002421T patent/DE502005002421D1/de not_active Expired - Lifetime
- 2005-05-13 ES ES05747888T patent/ES2300026T3/es not_active Expired - Lifetime
- 2005-05-13 US US11/628,208 patent/US7737832B2/en not_active Expired - Fee Related
- 2005-05-13 EP EP05747888A patent/EP1751728B1/de not_active Expired - Lifetime
- 2005-05-13 JP JP2007513908A patent/JP4320045B2/ja not_active Expired - Lifetime
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009050941A1 (de) | 2009-10-28 | 2011-05-05 | Man Nutzfahrzeuge Ag | Fahrerassistenzsystem für ein Nutzfahrzeug |
| DE102009050941B4 (de) | 2009-10-28 | 2020-06-04 | Man Truck & Bus Se | Fahrerassistenzsystem für ein Nutzfahrzeug |
Also Published As
| Publication number | Publication date |
|---|---|
| US7737832B2 (en) | 2010-06-15 |
| DE502005002421D1 (de) | 2008-02-14 |
| JP2008501167A (ja) | 2008-01-17 |
| WO2005119624A1 (de) | 2005-12-15 |
| US20080024284A1 (en) | 2008-01-31 |
| ES2300026T3 (es) | 2008-06-01 |
| ATE382927T1 (de) | 2008-01-15 |
| DE102004026590A1 (de) | 2006-01-12 |
| EP1751728B1 (de) | 2008-01-02 |
| JP4320045B2 (ja) | 2009-08-26 |
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