DE102020205210A1 - Plausibility check of vehicle data - Google Patents

Abstract

The present invention relates to a plausibility check device (10) for checking vehicle data of a vehicle, having: an input interface (12) for receiving vehicle data of the vehicle (20) with information on a behavior and state of the vehicle (20); a memory unit (14) with stored vehicle data of the vehicle (20) at an earlier point in time and / or of stored vehicle data of other vehicles (20) of the same or the same type; an evaluation unit (16) for performing a plausibility assessment of the vehicle data based on the vehicle data and the stored vehicle data and for generating plausibility data based on the vehicle data, the plausibility data indicating whether the vehicle data reflect plausible behavior of the vehicle; an output interface (18) for sending the plausibility data to the vehicle (20). The present invention also relates to a processing device for processing vehicle data of a vehicle, having: a sensor interface (24, 24 ', 24 ", 24"') for receiving vehicle data; a processing unit (32) for generating a data record based on the vehicle data; a communication interface (34) for sending the data record to an external plausibility check device (10) and for receiving plausibility check data and an output interface (36). The invention further relates to a system and a method for plausibility checking and checking of vehicle data and a method for processing vehicle data.

Description

The present invention relates to a plausibility check device for checking vehicle data of a vehicle, a processing device and a system with such devices. The invention also relates to a method for plausibility checking and checking vehicle data of a vehicle and a method for processing vehicle data of the vehicle.

In modern vehicles (cars, vans, trucks, motorcycles, etc.), a large number of vehicle data is determined, which is made available to a large number of systems within the vehicle. At the same time, this data is also made available to the driver in order to provide him with information about his vehicle and the operation of his vehicle. These data of the vehicle can also include general environmental data of the vehicle, for example of objects in the immediate vicinity of the vehicle, data on points of interest (POI) or climate data at the location of the vehicle or at the location of a destination of a planned trip. In some cases, the data determined in a vehicle are used to model the vehicle environment in order to be able to react to changes. The data can be used for advanced driver assistance systems (ADAS) in order to control individual functions of a motor vehicle completely or partially without the intervention of a driver. It is also known to transmit some of the determined data to external computing units, for example for statistical evaluation or comparison within vehicle groups.

the DE 10 2013 203 943 A1 therefore proposes collecting vehicle data in a vehicle and transmitting it to an external computer, for example a computer in the cloud. In this way, a large number of vehicle data from a large number of vehicles could be collected and compared with one another. By comparing vehicle data from several vehicles, it should be possible to diagnose errors and detect the wear of components in order to reduce the wear of components through corrective interventions in control devices of the vehicle.

The vehicle data determined in a vehicle can also be used to determine the quality or the value of the vehicle. For example, determined mileage or workshop inspections carried out can enable a statement to be made about the value of a vehicle. As a rule, the driver or user of a vehicle has only very little data available to get an idea of the value of a vehicle. To evaluate a vehicle, not only the maintenance of the vehicle or the inspections carried out but also the driving behavior of the driver can provide information. Likewise, the data such as the mileage or the vehicle's acceleration behavior allow predictions about the expected wear of individual parts or components.

However, it sometimes happens that individual vehicle data is manipulated. For example, information on mileage is reduced in order to suggest a lower mileage of a vehicle. This is intended, for example, to achieve a higher sales price in the event that a used vehicle is sold. However, it is difficult for a buyer to assess the data that can be called up directly in the vehicle and not to check whether, for example, the mileage is true.

The problem to be solved is to make an improved assessment of the data available in a vehicle in order, for example, to better determine the value of a vehicle or to be able to make a better prediction of the failure of components.

• einer Eingangsschnittstelle zum Empfangen von Fahrzeugdaten des Fahrzeugs mit Informationen zu einem Verhalten und Zustand des Fahrzeugs;
• einer Speichereinheit mit gespeicherten Fahrzeugdaten des Fahrzeugs zu einem früheren Zeitpunkt und/oder von gespeicherten Fahrzeugdaten von anderen Fahrzeugen ähnlichen oder gleichen Typs;
• einer Auswerteeinheit zum Durchführen einer Plausibilisierungsbewertung der Fahrzeugdaten basierend auf den Fahrzeugdaten und den gespeicherten Fahrzeugdaten und zum Erzeugen von Plausibilisierungsdaten basierend auf den Fahrzeugdaten, wobei die Plausibilisierungsdaten angeben, ob die Fahrzeugdaten ein plausibles Verhalten des Fahrzeugs widerspiegeln; und
• einer Ausgangsschnittstelle zum Versenden der Plausibilisierungsdaten an das Fahrzeug.

To achieve this object, the present invention relates in a first aspect to a plausibility checking device for checking vehicle data of a vehicle with:

• an input interface for receiving vehicle data of the vehicle with information on a behavior and condition of the vehicle;
• a storage unit with stored vehicle data of the vehicle at an earlier point in time and / or of stored vehicle data from other vehicles of the same or the same type;
• an evaluation unit for performing a plausibility assessment of the vehicle data based on the vehicle data and the stored vehicle data and for generating plausibility data based on the vehicle data, the plausibility data indicating whether the vehicle data reflect a plausible behavior of the vehicle; and
• an output interface for sending the plausibility data to the vehicle.

• einer Sensorschnittstelle zum Empfangen von Fahrzeugdaten des Fahrzeugs mit Informationen zu einem Verhalten und Zustand des Fahrzeugs;
• einer Verarbeitungseinheit zum Erzeugen eines Datensatzes basierend auf den Fahrzeugdaten;
• einer Kommunikationsschnittstelle zum Senden des Datensatzes von Fahrzeugdaten an eine externe Plausibilisierungsvorrichtung zum Überprüfen von Fahrzeugdaten und zum Empfangen von Plausibilisierungsdaten von der externen Plausibilisierungsvorrichtung, wobei die Plausibilisierungsdaten angeben, ob die Fahrzeugdaten ein plausibles Verhalten des Fahrzeugs widerspiegeln; und
• einer Ausgabeschnittstelle zum Ausgeben der Plausibilisierungsdaten.

In a further aspect, the present invention relates to a processing device for processing vehicle data of a vehicle, with:

• a sensor interface for receiving vehicle data of the vehicle with information on a behavior and condition of the vehicle;
• a processing unit for generating a data set based on the vehicle data;
• a communication interface for sending the data record of vehicle data to an external plausibility checking device for checking vehicle data and for receiving plausibility checking data from the external plausibility checking device, the plausibility checking data indicating whether the vehicle data reflect a plausible behavior of the vehicle; and
• an output interface for outputting the plausibility data.

Further aspects of the invention relate to a system with a plausibility check device and a processing device as well as methods designed according to the devices and a computer program product with program code for performing the steps of the method when the program code is executed on a computer, and a storage medium on which a computer program is stored which, when executed on a computer, causes the methods described therein to be carried out.

Preferred embodiments of the invention are described in the dependent claims. It goes without saying that the method as well as the system and the computer program product can be implemented in accordance with the configurations defined for the devices.

Provision is made for vehicle data from the vehicle to be received in the plausibility check device by means of the input interface. The vehicle data include information on a behavior and condition of the vehicle. The vehicle data represent the vehicle, for example by including the vehicle identification number, mileage and identification numbers of parts and components as well as other data collected in the vehicle. In addition to the received (current) vehicle data, stored vehicle data of the vehicle that were determined at an earlier point in time are available. These data are stored in a memory unit. Vehicle data from other vehicles of the same or the same type can also be stored in the memory unit. For example, vehicle data can be stored here that were determined and received from vehicles of the same series from the same manufacturer or with the same or similar engine.

In an execution unit, the received vehicle data is assessed for plausibility based on the vehicle data and on the stored vehicle data. The plausibility assessment determines whether the vehicle data allow conclusions to be drawn about plausible behavior of the vehicle. This is reflected in plausibility data based on the vehicle data and generated in the evaluation unit. For example, a mileage of the vehicle would be plausible if all the mileage stored by the vehicle at earlier points in time are less than the current mileage. If there is a mileage at an earlier point in time that is greater than the current mileage, the current mileage does not appear plausible. This contradiction in plausibility can be stored in the plausibility data. There are different ways in which the plausibility check data reflect such a situation. By means of an output interface, the plausibility check data are transmitted to the vehicle after they have been generated so that they are available in the vehicle.

The plausibility assessment carried out thus allows a conclusion to be drawn as to whether the vehicle data transmitted to the plausibility device appear plausible, consistent and logical. Since the current data is not only compared with vehicle data from other vehicles of the same or the same type, but is also related to vehicle data from the same vehicle that were determined at earlier points in time, a comprehensive and very precise picture can be determined to ensure consistency to judge the data. For example, if a vehicle has an average mileage of 2,000 km per month and the current vehicle data shows a mileage that is three times the monthly mileage, for example, further data and data from similar vehicles can be used for the plausibility assessment. For example, the mileage could be correlated with the fuel consumption, the wear of the brakes, the change in the contamination of the catalytic converter and / or soot particle filter in diesel vehicles. This can be done not only on the basis of the vehicle's own data, but also on the basis of other similar vehicles. Since several different data from different sensors of a vehicle can be related, an assessment and plausibility assessment is easy and reliable. Using the available data, vehicle profiles and / or driver profiles can also be created, which can be taken into account when selecting the data or the comparison data.

In a preferred embodiment of the plausibility checking device, vehicle data are selected for the plausibility checking of the vehicle data in order to carry out the evaluation based on the selected vehicle data. This selection can be made, for example, as described above, in order to be able to carry out an improved and more robust assessment of the plausibility of the vehicle data or individual vehicle data. A selection of the vehicle data for evaluation therefore only takes place in the plausibility checking device. No selection is made in the vehicle itself. Rather, all relevant data are preferably transmitted from the vehicle to the plausibility checking device. This has the advantage that the high computing power that the selection and evaluation requires can be made available by the plausibility checking device, in particular since the plausibility checking device is not included in the vehicle.

For example, the plausibility check device could be an external server that is present, for example, in a network or in a cloud. The vehicle data of the vehicle is preferably received by means of the input interface of the plausibility check device via a network, in particular a wireless network, via a WLAN or a GSM or other radio connection.

In a preferred embodiment, the evaluation unit is designed to carry out the plausibility assessment of the plausibility device based on an artificial intelligence and / or an artificial neural network. By using artificial intelligence or an artificial neural network, the processing of the resulting vehicle data can be improved and accelerated; in particular, the quality of the plausibility assessment can be increased. In particular in connection with a high computing power, for example in a data center or on a server, the artificial intelligence can carry out fast and high-quality processing of the data. The amount of data can be increased. The plausibility check data can be generated quickly from the received vehicle data, so that a user in a vehicle does not have to wait long for the plausibility check of the data. This can be done in real time, so to speak. In addition, the use of artificial intelligence is particularly suitable for making a suitable selection of the vehicle data so that a robust and effective assessment can be made.

In a preferred embodiment, the evaluation unit is designed to create a vehicle profile for the vehicle. The vehicle profile is created based on selected vehicle data, the vehicle profile including information relating to the behavior of the vehicle. Information on the condition of the vehicle can also be included in the vehicle profile. For example, the vehicle profile could include information about when the vehicle is primarily used. For example, the vehicle could be a pure summer vehicle, for example a convertible that is only moved and driven in the summer months. Such a vehicle is never exposed to the typical winter weather conditions, for example salt that is thrown up from the road and adheres to the body or vehicle parts. In the plausibility assessment, the vehicle profile could be taken into account to the extent that only comparative values from earlier times or from other vehicles that are also only moved in summer or whose data were only determined in summer are taken into account.

However, the vehicle profile can also enable conclusions to be drawn about the driving behavior of the user. For example, it could be recognized from the vehicle profile how many different users a vehicle has. The vehicle profile could provide information about how a vehicle is serviced. For example, it could be stored and shown in the vehicle profile whether a vehicle was regularly serviced and inspections were carried out in accordance with regulations and within a predetermined period of time. It could also be determined and taken into account whether the maintenance was carried out in specialist workshops or licensed manufacturer workshops. For this purpose, entries for maintenance and inspections carried out as well as for the replacement of certain parts or wear parts or components or control units of the vehicle could be taken into account. These data could be stored in the vehicle.

Provision is made for the vehicle data of a vehicle to be processed in a processing device which is part of the vehicle. A sensor interface of the processing device is designed to receive vehicle data of the vehicle, the vehicle data including information on a behavior or state of the vehicle. The sensor interface can be designed multiple times. Different vehicle data can be received via the sensor interface. This not only includes sensor data, but also other data stored in a memory or a database, such as the vehicle identification number, unique identification or article numbers of parts or components, such as control units, information on climate data or the like. A processing unit is for generating a data set based on formed the vehicle data. The data record preferably includes all vehicle data made available by the vehicle. A selection is preferably not made in the vehicle. Nevertheless, it is possible to compress the data before or after they are combined into a data record in order to optimize the transmission to an external plausibility check device. If the data record is not selected or reduced, the vehicle data can quickly be combined in a data record. The data record is sent by means of a communication interface to an external plausibility check device which is set up to check vehicle data. The communication interface is also designed to receive plausibility data from the external plausibility device. The plausibility check data indicate whether the vehicle data reflect a plausible behavior of the vehicle, i.e. whether the vehicle data are internally plausible, logical and consistent. Deviating, incorrect or possibly manipulated vehicle data can be recognized in this way, since such momentum is reflected in the plausibility check data.

An output interface is designed to output the plausibility check data. In this way, the plausibility check data can be further processed by other units or devices. It is also possible for the output interface to be connected to a display unit, for example a display inside the vehicle, so that the plausibility check data can be displayed and visually reproduced in the display unit. Acoustic reproduction is also conceivable, for example by reading aloud using an electronic voice.

In a preferred embodiment, the processing unit is designed to assign the vehicle data to received plausibility check data. The plausibility check data do not have to contain the vehicle data itself. Rather, the plausibility check data can be assigned to the vehicle data so that the vehicle data can be categorized or assessed. For example, for each value of the vehicle data, a suitable identification corresponding to the existing plausibility check data can be carried out. For example, warnings or other signals could be implemented when displaying the individual vehicle data. For example, the values, such as a mileage, could be displayed in color. It would also be possible for the value to be shown flashing or in bold or with underlining or the like. An exclamation mark or a warning mark could also be assigned to the individual value. In this case, the output interface is designed to output the assigned vehicle data. These could be output instead of the vehicle data or together with plausibility data or other signal data. For example, a corresponding indication on a display could be realized in this way.

The output interface is therefore preferably designed to output the plausibility check data and / or the associated vehicle data to an output unit. The vehicle data and the plausibility check data could also be output together. The display unit then takes on a display that preferably reflects the content and the evaluation contained in the plausibility check data.

In a preferred embodiment, the processing unit is designed to generate a coded information value based on the plausibility check data and / or the associated vehicle data. The coded information value can represent the information from the plausibility check data and / or the associated vehicle data. For example, it is possible for the information value to reproduce the data in the form of a code which is preferably output via the output interface designed to output the encoded information value. The coded information value could then be transmitted to a display unit by means of the output interface and displayed there. The coded information value could allow access to the plausibility check data and / or the assigned vehicle data. For example, it would be possible for the coded information value to be a QR code that is shown on a display. This coded information value can contain a link to a database or to a data server in which the plausibility check data and assigned vehicle data are themselves stored. For example, by reading out the code, such as a QR code or another graphic code, using a smartphone or another mobile device and an application or program installed and running on it, the plausibility check data and / or associated vehicle data could be accessed directly. This would make it possible to access the relevant data at a later point in time and independently of the vehicle.

• Sensordaten von Fahrzeugsensoren, Zustandsdaten von Sensoren und Komponenten, wie etwa Steuergeräten oder ähnlichen aktiven oder passiven Bauteilen, fest Fahrzeugkennwerte und Parameter sowie Daten wie etwa Kilometerstand, Temperatur, Fahrzeiten, Verbrauch, Beschleunigung, Füllstand des Kraftstofftanks, Zustände von Filtern, Abgasreinigungsanlagen, Einspritzzeitpunkte, Motorsteuerdaten, hinterlegte Steuerkurven, Batteriedaten, Stromflüsse, Spannungen, Ladespannungen, Zeitstempel, wie Datum, Uhrzeit, Daten zu Positionen des Fahrzeugs, beispielsweise Standortdaten des Fahrzeugs, GPS-Daten, Klimadaten und/oder Wetterdaten, beispielsweise am Standort des Fahrzeugs, Hardware spezifische Daten und Gerätedaten oder Komponentendaten einschließlich einer eindeutigen physischen Identifikationsnummer eines Gerätes oder einer Komponente, Teilenummern, Fahrzeugidentifikationsnummern, sowie Service relevante Daten wie Informationen bzgl. Ölwechsel, Bremsflüssigkeit, Status der Bremsen, u.ä., Informationen zu erfolgten oder zukünftigen Kundendiensten, zu Werkstätten, zu Wartungen oder Inspektionen. Ebenso können Störcodes (etwa „Ölstand niedrig“, „Batterieladung niedrig“, etc.) und andere (Fahrzeug-)interne Codes zu den Fahrzeugdaten gehören.

In a preferred embodiment, the vehicle-specific data or vehicle data on which the plausibility assessment is based comprise data from a group of the following data:

• Sensor data from vehicle sensors, status data from sensors and components, such as control units or similar active or passive components, fixed vehicle parameters and parameters as well as data such as mileage, temperature, driving times, consumption, acceleration, level of the fuel tank, status of filters, exhaust gas cleaning systems, injection times, engine control data, stored control curves, battery data, current flows, voltages, charging voltages, time stamps such as date, time, data on Positions of the vehicle, for example location data of the vehicle, GPS data, climate data and / or weather data, for example at the location of the vehicle, hardware-specific data and device data or component data including a unique physical identification number of a device or a component, part numbers, vehicle identification numbers, and service-relevant Data such as information on oil changes, brake fluid, status of the brakes, etc., information on past or future customer services, workshops, maintenance or inspections. Fault codes (such as “oil level low”, “battery charge low”, etc.) and other (vehicle) internal codes can also belong to the vehicle data.

The above data are not conclusive, but only exemplary. Vehicle data can consequently be all data from sensors of a vehicle as well as relevant data belonging to the vehicle. It would also be possible for the owners stored in the vehicle documents to be part of the vehicle data. Vehicle profiles or driver profiles can also be part of the data.

The plausibility checking device described above and the processing device are part of a system for checking plausibility and checking vehicle data of a vehicle.

In a preferred embodiment, a display unit for displaying the plausibility check data and / or the vehicle data or assigned vehicle data can be part of the system.

Vehicle data can be in different forms. They can be coded, in plain text, as alphanumeric characters or in encrypted forms. The vehicle data and / or plausibility check data can be transmitted in encrypted and / or compressed form. The data can be transmitted at predetermined times, for example cyclically or periodically. An initiation of the transmission by a user or the vehicle manufacturer or an authorized specialist workshop can also be provided. For the plausibility assessment of the vehicle data, certain vehicle data can be used at certain earlier times. A selection can be made here. The selection can include specific points in time and / or specific vehicle data. For the plausibility assessment, thresholds or limit values can be provided that enable the plausibility or consistency of the data to be classified or categorized. The limit values or thresholds can be possible as a function of the value, for example the level of a value, or as a function of the individual date of the vehicle data. The age of the stored data could also be taken into account. The age of the vehicle could also play a role in the assessment.

The plausibility assessment of the vehicle data not only makes it possible to assess the vehicle data and its stored data value. It is also possible to uncover tampering with individual values or components. A simple example is the manipulation of the mileage in a vehicle. Based on the evaluation of the data and the plausibility assessment, it is also possible to make meaningful and valid predictions for the replacement of parts or components. It can be provided that a prediction is made for a point in time or the kilometers still to be driven until the next replacement and / or maintenance or inspection. Based on the stored data, in particular if these include data on workshops, the driver of a vehicle could also be informed of the repair costs to be expected for replacing a component or for an inspection. The vehicle data could also include data entered by a workshop on processing times or hourly rates or flat-rate costs, which can be displayed to the user in connection with the prediction of the replacement of individual vehicle parts. The costs predicted here are particularly valid because not only current vehicle data of the vehicle determined at an earlier point in time are taken into account, but also data from other vehicles of the same type and / or the same or similar vehicle profile or driver profile. In this way, the forecast can be significantly improved.

• 1 eine schematische Darstellung einer Plausibilisierungsvorrichtung gemäß einem Aspekt der vorliegenden Erfindung;
• 2 eine schematische Darstellung einer Verarbeitungsvorrichtung gemäß einem Aspekt der vorliegenden Erfindung;
• 3 eine schematische Darstellung eines Systems gemäß einem Aspekt der vorliegenden Erfindung;
• 4 eine schematische Darstellung eines erfindungsgemäßen Verfahrens zum Plausibilisieren und Überprüfen von Fahrzeugdaten; und
• 5 eine schematische Darstellung eines erfindungsgemäßen Verfahrens zum Verarbeiten von Fahrzeugdaten eines Fahrzeugs.

The invention is described and explained in more detail below with the aid of a few selected exemplary embodiments in connection with the accompanying drawings. Show it:

• 1 a schematic representation of a plausibility checking device according to one aspect of the present invention;
• 2 a schematic representation of a processing device according to an aspect of the present invention;
• 3 a schematic representation of a system according to an aspect of the present invention;
• 4th a schematic representation of a method according to the invention for plausibility checking and checking vehicle data; and
• 5 a schematic representation of a method according to the invention for processing vehicle data of a vehicle.

1 shows a plausibility checking device according to the invention 10 for checking vehicle data of a vehicle. The plausibility device 10 includes an input interface 12th used to receive the vehicle's vehicle data. The input interface is preferably a wireless interface so that the vehicle data can be received via a network such as WLAN, a broadcast network or a network for mobile data such as GSM or the like. The one at the input interface 12th received vehicle data include information on a behavior and a condition of the vehicle. On the basis of the vehicle data, a statement can be made about the vehicle status or also about a vehicle profile or driver profile. A storage unit 14th the plausibility device 10 includes stored vehicle data of the vehicle that was received at an earlier point in time. Additionally or alternatively, in the storage unit 14th Vehicle data that originate from other vehicles of the same or the same type can also be stored. For example, if the vehicle is a BMW 530D, the memory unit 14th Vehicle data from vehicles of the type 520D, 525D or 535D can also be saved.

In one evaluation unit 16 the plausibility device 10 a plausibility assessment of the current vehicle data, i.e. the data that was last received via the input interface 12th received. The plausibility assessment is based on the current vehicle data and the stored vehicle data, with the vehicle data that is used for the plausibility assessment being selected in the evaluation unit. The stored vehicle data can be selected according to predetermined or predetermined rules. It is preferably carried out by an artificial neural network or another algorithm that includes artificial intelligence. The artificial neural network can be pre-trained with corresponding data in order to carry out a reliable, fast and efficient plausibility assessment of the current vehicle data.

The evaluation unit 16 generates plausibility data based on the vehicle data as the result of the plausibility assessment. The plausibility check data indicate whether the vehicle data reflect a plausible behavior of the vehicle or a plausible condition of the vehicle.

The current vehicle data received are preferably also in the memory unit 14th or stored in an external database in order to be available for later plausibility assessments. The vehicle data that have already been checked for plausibility are preferably stored, very preferably together with the generated plausibility check data.

The plausibility check data can be available in different forms. For example, it could be an assessment or categorization of the individual data in the vehicle data. The plausibility check data could also include the vehicle data itself, so that the vehicle data itself is assessed for plausibility. In the case of a mileage, for example, an OK, a note or a flag could be set if the mileage is plausible. If, for example, a mileage is categorized as questionable, for example because it suggests a monthly mileage of only a few kilometers, although the average monthly mileage of the vehicle is several thousand kilometers, it could be classified as critical. This can be achieved, for example, by means of a rating number. A corresponding note or flag with the date of the mileage could also be set.

An exit interface 18th the plausibility device 10 is designed to send the determined plausibility check data. Using the output interface 18th the data is transmitted to the vehicle. This is preferably done wirelessly via the Internet, a mobile network or other networks.

In the 2 is schematically a vehicle 20th shown in which a processing device according to the invention 22nd for processing vehicle data of the vehicle 20th is included. The processing device 22nd includes a sensor interface 24 for receiving vehicle data of the vehicle, wherein the vehicle data information on the behavior or the condition of the vehicle 20th include. A sensor interface 24 ' is for receiving data from a wheel sensor 26th educated. Another sensor interface 24 " is for receiving sensor data from a catalytic converter sensor 28 in the vehicle's exhaust system 20th educated. Another sensor interface 24 '''receives sensor data from a control device 30th .

Sensor data as understood by this invention cannot only include measurement data. The term sensor data also includes data such as static and unique identification numbers, article numbers, processing values, logic values from control units or control devices, position data, climate data or similar data that occur and are available in a vehicle, including the age of the vehicle, vehicle identification number and the like . The “sensor data” can also be received by an on-board computer in the vehicle.

A processing unit 32 the processing device 22nd generates a data set based on the vehicle data. The data record preferably includes all determined or determinable vehicle data. This data record is made using a communication interface 34 to an external plausibility device, such as the plausibility device 10 , sent to check vehicle data. The bidirectional communication interface 34 is also set up to receive plausibility data from the external plausibility device 10 , the plausibility check data indicating whether the vehicle data previously sent to the plausibility check device 10 were transmitted to a plausible behavior of the vehicle 20th let inferences. In other words, the plausibility check data indicate whether the determined vehicle data of the vehicle 20th are plausible and logical. By means of an output interface 36 the plausibility data are output. For example, they can be connected to a display unit 38 of the vehicle 20th be transmitted. The display unit 38 is usually not part of the processing device 22nd , but can also serve as a display for other devices in the vehicle, for example as a display for a navigation system or a car entertainment system.

In 3 is a system according to the invention 40 shown schematically that the plausibility device 10 and the processing device 22nd includes that in the vehicle 20th is installed. The vehicle data and plausibility check data are transmitted via a wireless network such as the cloud or a broadcast network or a similar network. The exchange of data can be encrypted and / or compressed.

In the embodiment shown according to 3 is in the processing device 22nd based on the plausibility data by means of the processing unit 32 an encoded information value 44 generated. This coded information value 44 is made using the output interface 36 to a display unit 38 transmitted. In the display unit 38 becomes the encoded information value 44 for example shown in the form of an optical pattern. The pattern can include the plausibility check data.

Alternatively, the pattern can also include a reference to a database or a website on which the plausibility check data and / or the vehicle data or vehicle data assigned to the plausibility check data can be called up. In the example shown, the information value 44 using a mobile handheld device 42 in the form of a smartphone 46 read out. For example, in the hand-held device 42 the plausibility check data and / or vehicle data can be accessed by means of a program or an installed app. This has the advantage that the vehicle data and plausibility data can be displayed in a standardized form, regardless of the vehicle manufacturer. The shape can be specified by the app or application or the program independently of the vehicle manufacturer. The presentation can be personalized; the user can also make a selection of the displayed data. For example, the relevant vehicle data can also be displayed in a uniform manner for different vehicle types or vehicles from different manufacturers. Interested parties can receive the data that are relevant for assessing the value, age and / or condition of a vehicle displayed in a standardized form and thus determine the value quickly and easily. The user can be sure that the vehicle data displayed is correct and not manipulated. Alternatively, vehicle data that do not appear plausible are shown to the user in a highlighted manner, so that he can take the evaluation of this data into account in his assessment.

It is possible in the vehicle 20th or with the mobile handheld device 42 access the current and previous vehicle data and receive a value history.

Of course, it is also possible if the displayed coded information value 44 a reference or link that includes the smartphone 46 or mobile handheld device 42 the data can be read directly from a website or from a database, wherein the link can include access to the database and the data. The coded information value 44 can include an access authorization for querying the data and for authorizing the query. Alternatively, access information such as user name and password could be requested from the user for authentication.

4th shows schematically a method according to the invention for plausibility checking and checking vehicle data of a vehicle 20th . The method comprises steps of receiving S10 a Record of vehicle data for a vehicle 20th , the storage S12 of the received data set of vehicle data of the vehicle 20th , the retrieval S14 of stored vehicle data of the vehicle at an earlier point in time and / or of stored vehicle data from other vehicles of a similar or the same type at other times and the execution S16 of plausibility assessments of the vehicle data based on the received vehicle data and the stored vehicle data. The method comprises the steps of generating S18 plausibility data based on the vehicle data and sending S19 the plausibility data to the vehicle 20th . Instead of the plausibility check data, a coded information value could also be sent to the vehicle 20th which includes a reference to the plausibility data, for example to a website with the plausibility data. The process runs as software on a server or external computer, for example in the cloud.

5 shows schematically the sequence of a method according to the invention for processing vehicle data of a vehicle 20th . The method comprises the steps of receiving S20 vehicle data with information on a behavior or a state of the vehicle, generating S22 a data record based on the vehicle data, sending S24 the data record of vehicle data to an external plausibility check device 10 for checking vehicle data, receiving S26 plausibility data from the external plausibility device 10 and the output S28 of the plausibility check data by means of an output interface 36 . The procedure according to 5 can in particular be implemented in software that runs on a vehicle control unit of a vehicle 20th is performed. In particular, it can be software that is implemented in a vehicle control system.

The invention has been comprehensively described and explained with reference to the drawings and the description. The description and explanation are to be understood as an example and not restrictive. The invention is not limited to the disclosed embodiments. Other embodiments or variations will become apparent to those skilled in the art using the present invention and a careful analysis of the drawings, the disclosure, and the following claims.

In the claims, the words “comprising” and “having” do not exclude the presence of further elements or steps. The undefined article “a” or “an” does not exclude the presence of a plural. A single element or a single unit can perform the functions of several of the units mentioned in the patent claims. An element, a unit, an interface, a device and a system can be implemented partially or completely in hardware and / or in software. The mere mention of some measures in several different dependent patent claims should not be understood to mean that a combination of these measures cannot also be used advantageously. A computer program can be stored / distributed on a non-volatile data carrier, for example on an optical memory or on a semiconductor drive (SSD). A computer program can be distributed together with hardware and / or as part of hardware, for example by means of the Internet or by means of wired or wireless communication systems. Reference signs in the patent claims are not to be understood as restrictive.

List of reference symbols

10

Plausibility device

12th

Input interface

14th

Storage unit

16

Evaluation unit

18th

Output interface

20th

vehicle

22nd

Processing device

24, 24 ', 24' ', 24' ''

Sensor interface

26th

Wheel sensor

28

Catalyst sensor

30th

Control unit

32

Processing unit

34

Communication interface

36

Output interface

38

Display unit

40

system

42

Hand-held device

44

coded information value

46

Smartphone

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102013203943 A1 [0003]

Claims (14)

Plausibility checking device (10) for checking vehicle data of a vehicle (20), with: an input interface (12) for receiving vehicle data of the vehicle (20) with information on a behavior and state of the vehicle (20); a storage unit (14) with stored vehicle data of the vehicle (20) at an earlier point in time and / or of stored vehicle data of other vehicles (20) of the same or the same type; an evaluation unit (16) for performing a plausibility assessment of the vehicle data based on the vehicle data and the stored vehicle data and for generating plausibility data based on the vehicle data, the plausibility data indicating whether the vehicle data reflect plausible behavior of the vehicle; an output interface (18) for sending the plausibility data to the vehicle (20). Plausibility device (10) Claim 1 , wherein the evaluation unit (16) is designed to carry out the plausibility assessment based on an artificial intelligence and / or an artificial neural network. Plausibility checking device (10) according to one of the preceding claims, wherein, for the plausibility checking of the vehicle data, a selection of vehicle data takes place in order to carry out the evaluation based on the selected vehicle data. The plausibility check device (10) according to any one of the preceding claims, wherein the evaluation unit (16) is designed to create a vehicle profile for the vehicle (20) based on selected vehicle data, the vehicle profile including information regarding the behavior of the vehicle. Processing device (22) for processing vehicle data of a vehicle (20), having: a sensor interface (24, 24 ', 24 ", 24"') for receiving vehicle data of the vehicle (20) with information on a behavior and state of the vehicle (20); a processing unit (32) for generating a data set based on the vehicle data; a communication interface (34) for sending the data set of vehicle data to an external plausibility checking device (10), which is set up to check vehicle data, and for receiving plausibility checking data from the external plausibility checking device (10), the plausibility checking data indicating whether the vehicle data is plausible Reflect behavior of the vehicle (20); an output interface (36) for outputting the plausibility check data. Processing device (22) after Claim 5 , wherein the processing unit (32) is designed to assign the vehicle data to received plausibility check data and the output interface (36) is designed to output the assigned vehicle data. Processing device (22) according to one of the Claims 5 or 6th , the output interface (36) being designed to output the plausibility check data and / or the assigned vehicle data to a display unit (38). Processing device (22) according to one of the Claims 6 or 7th wherein the processing unit (32) is designed to generate a coded information value based on the plausibility check data and / or the assigned vehicle data; and the output interface (36) is designed to output the coded information value, the coded information value enabling access to the plausibility check data and / or assigned vehicle data. Plausibility checking device (10) or processing device (22) according to one of the preceding claims, wherein the vehicle data comprises data from a group of the following data: Sensor data from vehicle sensors, status data from sensors, mileage, consumption, acceleration Date, time, time stamp Position, location of the vehicle, GPS data Climate data and weather data at the location of the vehicle Device data and component data including an identification number of a device or a component, part numbers, vehicle identification number Information on past or future customer services and workshops. System (40) comprising a plausibility checking device (10) according to one of the Claims 1 until 4th and processing device (22) according to one of Claims 5 until 9 . System (40) according to Claim 9 , comprising a display unit (38) for displaying the plausibility data and / or the vehicle data. Method for plausibility checking and checking vehicle data of a vehicle (20) with the following steps: Receiving a data set of vehicle data of a vehicle (20) with information on a behavior and condition of the vehicle (20); Storing the received data set of vehicle data of the vehicle (20); - Retrieval of stored vehicle data of the vehicle (20) at an earlier point in time and / or of stored vehicle data of other vehicles of the same or the same type; Carrying out plausibility assessments of the vehicle data based on the received vehicle data and the stored vehicle data; Generating plausibility data based on the vehicle data, the plausibility data indicating whether the vehicle data reflect plausible behavior of the vehicle (20); Sending the plausibility check data to the vehicle (20). Method for processing vehicle data of a vehicle (20), comprising the following steps: Receiving vehicle data with information on a behavior and condition of the vehicle (20) by means of a sensor interface; Generating a data set based on the vehicle data; Sending the data record of vehicle data to an external plausibility checking device (10) for checking vehicle data; Receiving plausibility data from the external plausibility device, the plausibility data indicating whether the vehicle data reflect plausible behavior of the vehicle (20); and Output of the plausibility check data by means of an output interface (36). Computer program product with program code for performing the steps of the method according to Claim 12 or 13th when the program code is executed on a computer.

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