EP0862146A2 - Procédé pour enregistrer les évènements d'accident - Google Patents
Procédé pour enregistrer les évènements d'accident Download PDFInfo
- Publication number
- EP0862146A2 EP0862146A2 EP98102997A EP98102997A EP0862146A2 EP 0862146 A2 EP0862146 A2 EP 0862146A2 EP 98102997 A EP98102997 A EP 98102997A EP 98102997 A EP98102997 A EP 98102997A EP 0862146 A2 EP0862146 A2 EP 0862146A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- accident
- event
- weighting factor
- accident event
- 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
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Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
Definitions
- the invention relates to a method for registering accident events, in particular for use in a vehicle Data registration device which is designed as an accident data memory or the Function of an accident data memory includes.
- an accident data store The purpose of an accident data store is to provide accident-related data register and thereby make it available for later evaluation, so that a The course of the accident can be reconstructed.
- Data related to the same accident situation belong and thus have a temporal connection an accident event, hereinafter referred to as an event.
- the concept of accident is to be interpreted broadly because an accident event also includes data from situations should include that suggest a material-damaging driving style to let.
- An accident in the sense of this invention is therefore every situation that in the normal movement of the vehicle in a potentially harmful manner occurs suddenly and interrupts it if necessary.
- An accident data memory detects driving dynamics signals and binary status signals, both of which are referred to below for the sake of simplicity Data "are subsumed.
- the vehicle dynamics data include the accelerations of the vehicle in the direction of its longitudinal axis and transverse axis and possibly also its vertical axis. Furthermore, variables derived from the accelerations such as the speed transfer, the jerk, the power or the power rate can be added Current vehicle speed is often determined independently of the accelerations from the signal of a pulse generator, which detects a wheel revolution ..
- Status signals provide information about the operating state of various devices in the vehicle, for example whether the brakes, the hazard lights or other devices have been actuated.
- a Accident data storage usually has a large number of Data channels through which data from various data sources flow to him.
- the individual data channels are controlled by the control unit of the Accident data storage, usually as a microprocessor or microcontroller is trained, queried at a time interval adapted to practice, whereby the clock rates for the individual data channels are quite different can be different.
- Driving dynamics data are usually in one faster clock - and therefore more often - in the memory of the Accident data memory read in as status signals.
- Conventional accident data storage such as in EP 0118 818 B1, only evaluate incoming vehicle dynamics data in the With regard to rigid, predetermined limit values. If these are exceeded, the accident data memory evaluates what is characterized by the recorded data Event as an accident. Then all belonging to this event Data is written to a dedicated memory area that this data as a whole remains unchanged until it is evaluated remain. This is precisely when the market demands that a Accident data storage must be able to handle multiple accident events record a relatively large amount of data for which considerable storage means must be made available in the accident data memory. This is however expensive and for the purpose of an accident data storage of only low effectiveness.
- the solution is characterized by a procedure that involves every event evaluated by a weighting factor and then controlled by evaluation saved.
- devaluation then no longer takes place relevant events based on defined criteria, as it is in the claims 8 to 12 is shown.
- the procedure is as follows: As already described, are the data of all from the control unit of the accident data memory data channels are queried cyclically. Surrender to the Movement data, especially significant with the acceleration data Changes from one to the next data acquisition, these and also other data that is particularly meaningful in relation to an accident situation the occurrence of this change for a predetermined period of time ⁇ t one subjected to close scrutiny. This time period ⁇ t is in the range of Seconds, preferably between 1 and 20 seconds. In addition to Observation of the course of the acceleration data can, for example check whether the brake or the hazard lights have been activated or whether the vehicle has come to a standstill.
- the weighting factor assigned to the event consists of a number ⁇ whose Value is between zero and one. One means that an event is greatest It is important, but zero is minor or unimportant Event.
- the assignment criteria for the number ⁇ to an event can for example in an evaluation of the presence, the intensity, the The duration and the time behavior of data of certain data channels exist.
- the weighting evaluation of established events in the above Way is the first step in the proposed according to the invention Method.
- the second step involves the procedure for Storage of the evaluated events, which are now described below becomes.
- the data belonging to a certain event is stored in a Event memory belonging to the accident data memory is stored.
- To this Data is usually added to data immediately before or after the event period ⁇ t were recorded. Because the recording of data from the pre and post event period improves the reconstructibility of the Accident event. It has proven to be practical and useful Data of a continuous period of about 30 to 60 seconds to record if a driving situation as from the accident data memory potential accident event was recognized.
- the data of the event with the weighting factor ⁇ min is overwritten by the data of the current event with the weighting factor ⁇ 0 . If, on the other hand, the weighting factor ⁇ of the current event is smaller than the weighting factor ⁇ min of the least significant event that has already been saved, that is to say ⁇ 0 ⁇ min , its data are not stored in the event memory.
- the statistics memory can also be used in such a way that in principle of each event ascertained in its scope reduced record is stored there, regardless of how this event is handled in the event log.
- This approach has the advantage that a transfer of data from the event memory in the Statistics memory is never required. Then also lie the data records in the statistics memory always in chronological order, which simplifies their evaluation.
- the further, advantageous step of the proposed solution consists in one Devaluation of events in the event log.
- the one in the event log stored events are continuously checked for their relevance. This check can be carried out by evaluating data channels that are used for a weighting of the value of the events can be considered relevant.
- the relevance of an event can be determined by evaluating the Length of the route s to be assessed since the occurrence of the event or by evaluating the residence time ⁇ T of the individual events in the Event log.
- the dependencies mentioned can also are taken into account together, with each also the original weighting factor ⁇ of the event are taken into account can. Which dependencies are appropriate can be determined by practical Considerations are set, with those in the accident data memory Available computing power will certainly be decisive.
- the parameters s min and s max can be selected as a function of the original weighting factor, if necessary.
- the means of the fuzzy logic can then be used to calculate and apply the overall devaluation from all parameters of the devaluation criteria used.
- FIG. 1 The first two process steps are illustrated in the schematic illustration in FIG. 1 .
- a reduced data set of all events is stored in a statistical memory belonging to the data registration device.
- the control unit (not shown) of the accident data memory checks whether this event can be stored in the event memory due to its weighting and what effect the storage of this event has on the order of priority of the events already stored there.
- FIG. 2 shows an example of the procedure for the third method step, which relates to the devaluation of events stored in the event memory.
- the step-by-step procedure for the registration of accident events described here has the particular advantage that the sensitivity of the accident data memory adapts itself adaptively to its particular operating conditions. Due to the devaluation of events in the event memory and the addition of new, current events in connection with the overwriting of old, no longer relevant events, a so-called flow balance is established in the event memory, since after a certain time one of the special operating conditions of the vehicle changes in the event memory dependent evaluation ⁇ min without factory setting or manual setting on the accident data memory, because only new events with a weighting factor of ⁇ ⁇ ⁇ min are saved, while events with a weighting factor ⁇ ⁇ min are not recorded in the event memory.
- This procedure also helps to register accident events the memory means implemented in the accident data memory are used very effectively. Data of low significance are either immediately discarded or saved only to a limited extent. This means that despite one relatively low total capacity of the storage means nevertheless considerable number of accident events are recorded in good quality. If a statistical memory is implemented, many data records are above one available for a longer period of time, especially when using the Accident data storage in vehicle fleets a certain control and Allow monitoring of the handling of the vehicle. An evaluative Place can take valuable clues from the data in the statistics memory, too if the data records stored there are reduced in scope.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Time Recorders, Dirve Recorders, Access Control (AREA)
- Traffic Control Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707847A DE19707847A1 (de) | 1997-02-27 | 1997-02-27 | Verfahren zur Registrierung von Unfallereignissen |
| DE19707847 | 1997-02-27 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0862146A2 true EP0862146A2 (fr) | 1998-09-02 |
| EP0862146A3 EP0862146A3 (fr) | 2001-10-04 |
| EP0862146B1 EP0862146B1 (fr) | 2011-11-02 |
Family
ID=7821641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98102997A Expired - Lifetime EP0862146B1 (fr) | 1997-02-27 | 1998-02-20 | Procédé pour enregistrer les évènements d'accident |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0862146B1 (fr) |
| AT (1) | ATE532157T1 (fr) |
| DE (1) | DE19707847A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096447A3 (fr) * | 2005-08-05 | 2012-05-09 | Toyota Jidosha Kabushiki Kaisha | Appareil d'enregistrement de données véhiculaires |
| ITMI20130959A1 (it) * | 2013-06-11 | 2014-12-12 | Semplicemente S R L | Rilevatore da usare in un veicolo a motore, e procedimento per stabilire se un veicolo o i suoi occupanti hanno subito un incidente |
| CN119964271A (zh) * | 2025-02-06 | 2025-05-09 | 岚图汽车科技有限公司 | 事件数据记录器的数据记录方法、装置、设备及存储介质 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10050243B4 (de) * | 2000-10-11 | 2010-01-14 | Volkswagen Ag | System zur Diagnose- und/oder Unfallhergangsdokumentation für Fahrzeuge, insbesondere Kraftfahrzeuge |
| JP6252344B2 (ja) * | 2014-05-07 | 2017-12-27 | 株式会社デンソー | データ記録装置およびデータ記録プログラム |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3405757A1 (de) * | 1983-02-26 | 1984-10-04 | Edmund 7016 Gerlingen Zottnik | Unfalldatenschreiber |
| DE3637165A1 (de) * | 1986-10-31 | 1988-05-05 | Rainer Ashauer | Verfahren und einrichtung zum verhindern von zusammenstoessen, insbesondere fuer kraftfahrzeuge im strassenverkehr |
| US5189621A (en) * | 1987-05-06 | 1993-02-23 | Hitachi, Ltd. | Electronic engine control apparatus |
| US4992943A (en) * | 1989-02-13 | 1991-02-12 | Mccracken Jack J | Apparatus for detecting and storing motor vehicle impact data |
| DE4132981A1 (de) * | 1991-01-23 | 1992-08-06 | Schimmelpfennig Karl Heinz | Verfahren zur rekonstruktion der bewegungstrajektorie eines strassenfahrzeugs |
| DE4218397A1 (de) * | 1992-06-04 | 1993-12-09 | Mannesmann Kienzle Gmbh | Einrichtung zur Kurzwegregistrierung für Kraftfahrzeuge |
-
1997
- 1997-02-27 DE DE19707847A patent/DE19707847A1/de not_active Ceased
-
1998
- 1998-02-20 AT AT98102997T patent/ATE532157T1/de active
- 1998-02-20 EP EP98102997A patent/EP0862146B1/fr not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096447A3 (fr) * | 2005-08-05 | 2012-05-09 | Toyota Jidosha Kabushiki Kaisha | Appareil d'enregistrement de données véhiculaires |
| ITMI20130959A1 (it) * | 2013-06-11 | 2014-12-12 | Semplicemente S R L | Rilevatore da usare in un veicolo a motore, e procedimento per stabilire se un veicolo o i suoi occupanti hanno subito un incidente |
| CN119964271A (zh) * | 2025-02-06 | 2025-05-09 | 岚图汽车科技有限公司 | 事件数据记录器的数据记录方法、装置、设备及存储介质 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19707847A1 (de) | 1998-09-10 |
| ATE532157T1 (de) | 2011-11-15 |
| EP0862146A3 (fr) | 2001-10-04 |
| EP0862146B1 (fr) | 2011-11-02 |
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