System, Device and Method for Functional Plausibility Checking of Sensor Data

Patent metadata

Field	Value
Publication number	US-2016110932-A1
Application number	US-201514883768-A
Country	US
Kind code	A1
Filing date	Oct 15, 2015
Priority date	Oct 15, 2014
Publication date	Apr 21, 2016
Grant date	—

Abstract

A device, a sensor arrangement, a system and a method are provided for checking the plausibility of sensor data. The plausibility of the results of processing of sensor data is checked with an independent module by an alternative verification method at each stage, and quality indicators are calculated for the reliability of the calculated data from this plausibility check, which can be taken into account during further processing.

First claim

What is claimed is:

1 . A system for checking the plausibility of sensor data which is supplied by sensors of a vehicle, comprising a processing module, a plausibility checking module and a monitoring module, wherein the processing module ( 11 ) is configured to execute a processing algorithm to process the sensor data ( 1 ), the plausibility checking module ( 21 ) is arranged and configured to check the plausibility of the processed sensor data, and the monitoring module ( 30 ) is arranged and configured to calculate quality indicators for the sensors that supply the sensor data ( 1 ) on the basis of results of the plausibility check.

2 . The system for checking the plausibility of sensor data according to claim 1 , wherein the system comprises:
at least one first module ( 11 ) for processing sensor data, having a first input (SE 11 ), a first output (SA 11 ) and a second output (PA 11 ), at least one second module ( 21 ) for checking the plausibility of sensor data, having a second input (PE 21 ) and a third output (GA 21 ), a third module ( 30 ) for monitoring the plausibility check of sensor data, having a third input (GE 30 ) and a fourth output (GA 30 ), wherein the sensor data ( 1 ) is input into the first input (SE 11 ) of the first module ( 11 ) for processing sensor data, the first module ( 11 ) for processing sensor data processes the input sensor data ( 1 ) by executing an algorithm, and the processed sensor data ( 112 ) is output at the first output (SA 11 ) of the first module ( 11 ) for processing sensor data, data for checking plausibility ( 1121 ) is output at the second output (PA 11 ) of the first module ( 11 ) for processing sensor data and input into the second input (PE 21 ) of the second module ( 21 ) for checking the plausibility of sensor data, the second module ( 21 ) for checking the plausibility of sensor data checks the plausibility of the sensor data ( 1 ) by executing an alternative verification method, and the plausibility check results ( 211 ) are output at the third output (GA 21 ) of the second module ( 21 ) for checking the plausibility of sensor data and input into the third input (GE 301 ) of the third module ( 30 ) for monitoring the plausibility check, the third module ( 30 ) for monitoring the plausibility check weights the plausibility check results ( 211 ) and calculates quality indicators (GD) from these, wherein the calculated quality indicators (GD) for the sensors supplying the sensor data ( 1 ) are output at the fourth output (GA 30 ) of the third module ( 30 ) for monitoring the plausibility check of sensor data.

3 . The system according to claim 2 , characterized in that a plurality of first modules ( 11 , 12 , 13 , 14 ) for processing sensor data ( 1 , 112 , 123 , 133 ) are connected in serial and/or parallel to associated second modules ( 21 , 22 , 23 , 24 ) for checking the plausibility of sensor data ( 1 , 112 , 123 , 133 ), wherein the processed sensor data ( 112 , 123 , 133 ) of the preceding module in series is input into the sensor inputs (SE 12 , SE 13 , SE 14 ) of the following module ( 12 , 13 , 14 ) in series.

4 . The system according to claim 2 , characterized in that the data for checking the plausibility ( 1121 , 1222 , 1323 , 1424 ) is identical to the processed sensor data ( 112 , 123 , 133 , 143 ).

5 . The system according to claim 2 , characterized in that the plausibility check results ( 211 , 221 , 231 , 241 ) are input again as plausibility check result feedback data ( 2111 , 2212 , 2313 , 2414 ) into the corresponding first module ( 11 ) for processing sensor data ( 1 , 112 , 123 , 133 ) into a further input (PE 11 , PE 12 , PE 13 , PE 14 ).

6 . The system according to claim 2 , characterized in that all of the data of the first modules ( 11 , 12 , 13 , 14 ) for processing sensor data input into the first inputs (SE 11 , SE 12 , SE 13 , SE 14 ) and all of the data output at their first outputs (SA 11 , SA 12 , SA 13 , SA 14 ) is verified by the second modules ( 21 , 22 , 23 , 24 ) for checking the plausibility of sensor data ( 1 , 112 , 123 , 133 ) with an alternative verification method, and the plausibility check results ( 211 , 221 , 231 , 241 ) are output at the respective outputs (GA 21 , GA 22 , GA 23 , GA 24 ) of the second module ( 21 , 22 , 23 , 24 ) for checking the plausibility of sensor data and are input into respective inputs (GE 301 , GE 302 , GE 303 , GE 304 ) of the third module ( 30 ) for monitoring the plausibility check of sensor data.

7 . The system according to claim 6 , characterized in that the alternative verification method for checking plausibility includes the use of a second source of information to verify the plausibility of sensor data ( 1 , 112 , 123 , 133 ).

8 . The system according to claim 6 , characterized in that the second modules ( 21 , 22 , 23 , 24 ) for checking the plausibility of sensor data ( 1 , 112 , 123 , 133 ) store the plausibility check results of previous calculation steps, and use this data for checking the plausibility of the current sensor data ( 1 , 112 , 123 , 133 ).

9 . The system according to claim 2 , characterized in that the plausibility check results ( 211 , 221 , 231 , 241 ) are weighted by the third module ( 30 ) for monitoring the plausibility check of sensor data.

10 . The system according to claim 1 , characterized in that the plausibility check of the sensor data is carried out periodically, in particular every 60 ms.

11 . The system according to claim 1 , further comprising a sensor arrangement comprising at least one sensor configured to generate the sensor data.

12 . The system according to claim 11 , wherein the sensor arrangement includes no redundant sensors.

13 . A vehicle having a system for checking the plausibility of sensor data according to claim 11 .

14 . A device for checking the plausibility of sensor data comprising:
at least one first module ( 11 ) for processing sensor data, having a first input (SE 11 ), a first output (SA 11 ) and a second output (PA 11 ), at least one second module ( 21 ) for checking the plausibility of sensor data, having a second input (PE 21 ) and a third output (GA 21 ), a third module ( 30 ) for monitoring the plausibility check of sensor data, having a third input (GE 30 ) and a fourth output (GA 30 ), wherein the device is configured and adapted: to input sensor data ( 1 ), which is received from at least one sensor, into the first input (SE 11 ) of the first module ( 11 ) for processing sensor data, and to output the processed sensor data ( 112 ) at the first output (SA 11 ) of the first module ( 11 ) for processing sensor data, to output data for checking the plausibility ( 1121 ) at the second output (PA 11 ) of the first module ( 11 ) for processing sensor data and to input said data into the second input (PE 21 ) of the second module ( 21 ) for checking the plausibility of sensor data, to output plausibility check results ( 211 ) at the third output (GA 21 ) of the second module ( 21 ) for checking the plausibility of sensor data and to input said data into the third input (GE 301 ) of the third module ( 30 ) for monitoring the plausibility check of sensor data, and to output quality indicators (GD) calculated by the third module ( 30 ) for the sensors supplying the sensor data ( 1 ) at the fourth output (GA 30 ) of the third module ( 30 ) for monitoring the plausibility check of sensor data.

15 . A method of checking the plausibility of sensor data ( 1 ) supplied by sensors of a vehicle, comprising processing the sensor data by execut

Assignees

• Conti Temic Microelectronic

Inventors

• Klein Wladimir
• Meis Urban

Classifications

• G07C5/08 Primary

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• B60W50/0205 Primary

  Diagnosing or detecting failures; Failure detection models · CPC title

• B60W2520/16

  Pitch · CPC title

• B60W50/00 Primary

  Details of control systems for road vehicle drive control not related to the control of a particular sub-unit {, e.g. process diagnostic or vehicle driver interfaces} · CPC title

• B60W2050/0215

  Sensor drifts or sensor failures · CPC title