WO2020207521A1

WO2020207521A1 - Functional unit having a raw data memory

Info

Publication number: WO2020207521A1
Application number: PCT/DE2020/100092
Authority: WO
Inventors: Holger Witt; Martin Vornehm
Original assignee: Schaeffler Technologies AG & Co. KG
Priority date: 2019-04-12
Filing date: 2020-02-12
Publication date: 2020-10-15
Also published as: DE102019109766A1

Abstract

The invention relates to a functional unit (10), having at least one functional component (12) for effecting a technical function, a data capture unit (14), a data processing unit (22) which is connected via a first interface (36) to the data capture unit (14) and has a first data processing module (24), a preparation data memory (28), and a second data processing module (32), wherein the preparation data memory (38) is arranged effectively between the first data processing module (24) and the second data processing module (32), and the data processing unit (22) has a raw data memory (38) that is configured to store the generated data (16) as raw data (40) starting from a first point in time and for a first time period and is arranged effectively between the data capture unit (14) and the first data processing module (24), the first data processing module (24) being configured to process the raw data (40) as processed data (26) by applying algorithms and the raw data (40) being designed to map at least the operating behaviour of the functional component (12) in such a way that a subsequent reconstruction of the operating behaviour can be effected.

Description

Function module with a raw data memory

Description introduction

The invention relates to a functional assembly according to the preamble of claim 1.

DE 10 2010 046 322 A1 describes a functional assembly which is designed as a motor vehicle with a manual transmission. The gearbox has a control unit for controlling the gearbox and the control unit has an error memory for storing error entries.

The detection of errors and also of various measurement data and setpoint values in motor vehicles is generally known. This data can be used in an evaluation and further processing in order to intervene in the function of the motor vehicle in a regulating and optimizing manner, in order to form key figures from the data, which are important, for example, for determining wear or for determining maintenance intervals and to detect functional errors. These functional errors are saved as compressed data so that they can be read out in a workshop. This compressed data can also be saved in a cloud and made available for analysis.

However, these compressed data can only provide a limited insight into past processes of the functional module due to their combination and size restriction.

The object of the present invention is to improve a functional assembly. Data security and the amount of information are to be increased. The operational safety of the functional assembly is to be improved. The technical function of the function module is to be optimized.

At least one of these objects is achieved by a functional assembly having the features of claim 1. As a result, a more reliable evaluation of the operational behavior of the functional component can be effected and the amount of information and data security can be increased. The raw data can be used for subsequent Algorithms offer a retrospectively usable information basis even if the algorithms are changed subsequently. The algorithms can access a very large amount of data for a previous period of time. The accuracy of the data processing is increased. The technical function can be improved. Furthermore, contrary to current efforts to keep data available only in a cloud as far as possible, local storage of raw data that map the operating behavior of the functional component in such a way that a subsequent reconstruction of the operating behavior can be made possible.

The performance of the functional component can be improved. Due to the availability of detailed raw data, the specific properties of the functional assembly can be determined by means of correlation analyzes and other evaluations. Exact knowledge of the specific properties enables the mode of operation, for example the operating points, to be fine-tuned to specific target variables, for example consumption or emissions

Function module to optimize. Furthermore, the changes in the specific properties of the functional module can be observed and the

Operating mode can be adapted, for example the wear is determined and maintenance of the functional assembly planned and carried out depending on this.

Precise maintenance can be carried out by determining, for example, precise characteristic values for the wear of various components of the functional assembly. For example, the frictional power of a functional component designed as a brake lining in a functional module designed as a vehicle can be evaluated more precisely.

For example, a brake actuator of the functional assembly can use the raw data to analyze the behavior over time, for example wear and tear or impairments, and carry out appropriate optimizations. The previous operating behavior of the function module can be mapped as completely as possible through the raw data.

The data sovereignty can remain with the owner or owner of the functional assembly, so that the customer's confidence in cloud storage can be increased. Furthermore, the bandwidth requirements for the output of the transmission data are reduced. The cost of the functional assembly can be reduced and reliability increased. The cost of the

Raw data memories are particularly small, since both the storage capacity and the required computing power can be implemented cost-effectively with products from mass production.

A module can be a hardware unit, a component and / or software.

The functional assembly can be a vehicle, in particular a motor vehicle, a truck, in particular a truck, a wind turbine, an electrical one

Be a charging station, a production facility or part of the aforementioned facilities.

The data acquisition unit can comprise at least one data generation device, for example a sensor and / or a control device, or as a

Data generation device, for example, be designed as a sensor and / or a control device. The data acquisition unit can additionally or alternatively form an interface for a data generation device, for example for sensors and / or control devices which are arranged outside the data acquisition unit.

The data generated can be a physical measured variable or characterize it. The data generated can be a time course of a

be a physical measurand. The physical measured variable can be a pressure, a force, a torque, a vibration, a temperature, a distance, a time, an electrical measured variable, for example an electrical voltage, a quantity, a power, a mass or the like. As an alternative or in addition, the generated data can also be setpoint values or identify these.

The raw data can arise directly or through preprocessing from the generated data. The preprocessing can be arranged in the raw data memory, the data acquisition unit or one in between

Run preprocessing module. The raw data memory can have a database. The preparation data memory can have a database. The raw data memory and / or processing data memory can be a permanent memory. The raw data and / or the processing data can be processed with a The time of storage. Apart from saving the raw data, the raw data memory can only be accessed for reading. The raw data can contain a serial number and / or changes to the serial number when a respective component is replaced or from a data generating device connected to it, for example from a sensor or control device. The raw data can contain information about service calls, for example about replaced components or firmware updates.

The raw data and / or processing data can be encrypted and / or stored using a blockchain process. The data processing unit can have a security module, in particular a blockchain module, which is set up to protect the respective data and / or the respective algorithms from a subsequent and in particular unnoticed change using an encryption method, in particular a blockchain method. The

Transmission data can have blockchain values from the blockchain module. In this way, the raw data and / or processing data can be protected from subsequent changes.

The first data processing module can generate the processed data from the raw data by using algorithms. The second data processing module can generate the transmission data from the preparation data by using further algorithms. The respective algorithms can be changed, for example in order to implement new developments, new findings and improvements. The respective changed algorithms can be transmitted encrypted or unencrypted. The change in the respective algorithms can be recognized and stored in the raw database with the change in time, for example as a hash value. For example, the frictional power of a brake lining can be evaluated as a functional component. If at a later point in time better algorithms for wear detection or one is required

Maintenance are known, they can be changed in the respective data processing module, these new algorithms being able to output immediate results by being able to access the raw data.

The algorithms can be simplified as the continuous storage of the raw data enables simpler algorithms. Because the complexity of the algorithms lies mainly in the query logic. This can be subsequently optimized and / or corrected, in particular without loss of functionality, since the changed algorithms can access the raw data. It is therefore not necessary to estimate all the necessary evaluations in advance, but can be supplemented if necessary.

The selective memory can be a fault memory. The processing data can contain information on malfunctions, wear data or information on

Be functional restrictions. The transmission data can be read out in a workshop with a service device and / or transferred to a network memory, for example a cloud memory. The transmission data can be error identifications, error descriptions, a point in time and / or a duration of the error.

The second data processing module can transmit the data via a

Output interface. The output can be via CAN, USB, WLAN, Bluetooth,

UMTS, a network connection, an analog and / or digital data connection. The output of the transmission data can be event-controlled, time-controlled and / or command-controlled.

The second data processing module can be set up to carry out access control. For example, depending on the affiliate

Connection unit and / or access rights are applied depending on the access intention. Possible access intentions can include a selection of the data that are visible to a connection unit or a user of the connection unit, a change or addition to algorithms, a selection of algorithms that can be changed by the connection unit, a selection of the data that an algorithm is allowed to access, an access to the results of algorithms, a maximum amount of data that can be retrieved per time interval, for example in kbytes / month and / or a specification for a maximum computing capacity and / or

Computing load for an algorithm, a connection unit and / or a user of the connection unit.

The data processing unit can be used for car sharing. The

Data processing unit can provide extensive recording and evaluation of various operating data of the functional module, data storage and Security of the stored data against manipulation, the suitability for communication with various sensors or control devices, for example with controls in the vehicle, in particular the engine control, the

Door locking system or other control devices, enable secure data transmission via interfaces including encryption and / or secure identification of communication partners. The data processing unit can provide a firewall.

The first point in time can be a point in time when the

Be a functional assembly. The first period can be longer than a maintenance interval of the functional unit or functional assembly.

The connection unit can be assigned to the functional assembly,

be built into this, for example, or with the functional assembly

be wired or wirelessly connected. The transmission data can be requested from the connection unit, in particular in pull mode or in

Push operation, for example depending on specified processes, to the

Connection unit are output.

In a preferred embodiment of the invention, the second

Data processing module a first connection to the first

Data processing module and is set up to change the algorithms on the first data processing module for processing the raw data as processed data via the second data processing module as required.

In a special embodiment of the invention, the second

Data processing module a second connection for direct access to the raw data memory.

In a further special embodiment of the invention, the data generated additionally comprise data transmitted from the connection unit via the second data processing module and the second connection to the raw data memory.

In particular by applying suitable restrictions to prevent undetected changes to the raw data, for example by including a blockchain process, an electronic service booklet and / or a

electronic vehicle registration and / or an electronic maintenance plan implemented will. Furthermore, the function of an electronic logbook or a tachograph can be implemented. In particular, the raw data

Information about the user, who can be identified by a reading unit, for example via his driver's license or ID card, is stored as raw data in the raw database. Transfer of ownership in the

Raw database can be saved, with which an electronic vehicle registration document can be implemented.

In a preferred embodiment of the invention, the second is

Data processing module set up to process the preparation data on request from the connection unit.

In a special embodiment of the invention, the second data processing module is set up as a central communication interface

Data processing unit and / or the functional assembly to the

Form connection unit. The data processing unit can thus act as a central interface between the functional assembly and the environment. This has the advantage that the number of connections to the environment is reduced. Furthermore, the data processing unit can increase the data security, for example via an included firewall, when the connection unit is accessed.

In a preferred embodiment of the invention, the preparation data that are processed in a second processing period are those from the beginning of, during or after a first processing period in the

Processing data storage additional processing data added, the second processing period is after the first processing period. As a result, the preparation data can be processed incrementally and the transmission data can be available more quickly.

In an advantageous embodiment of the invention, the processing of the raw data as processed data by the first data processing module is dependent on first specification data output via the first connection by the second data processing module. This enables the algorithms in the first

Data processing module, for example from outside, via the second

Data processing module are changed. Can also be an immediate

Connection from outside to the first data processing module for transmission of the first default data. The modified algorithms can be accessed by accessing the raw data memory on from the previous ones

Algorithms in the first data processing module access unchanged raw data. The changed algorithms can output processed data directly and also based on retroactive raw data.

In a special embodiment of the invention, the second

Data processing module record the partial or complete data exchange and / or access taking place via the interface.

In a preferred embodiment of the invention, the data processing unit also has a control module which is set up to control the functional assembly, in particular the data acquisition unit, and the control is dependent on second specification data output by the second data processing module to the control module. The control module can add the second specification data with the raw data and / or the processing data

Control data, in particular via an interface to the

Data acquisition unit are output, implement.

In a special embodiment of the invention, the data generated are stored as raw data in the raw data memory, starting from the first point in time.

In another specific embodiment of the invention, the first is

Set up data processing module to process the raw data at time intervals during respective processing periods. The time intervals and / or the processing time periods can be specified by an event and / or a command. Processing the raw data as processed data can be

take place time-controlled, batchwise and / or continuously. For example, the processing can take place during a break in operation of the functional assembly, for example when the vehicle is switched off.

In a special embodiment of the invention, the second data processing module is set up, the processing data at time intervals during respective

To process processing times. The time intervals and / or the processing time periods can be specified by an event and / or a command. The Processing of the preparation data as transmission data can be time-controlled, batch-wise and / or continuous. For example, the processing can take place during a break in operation of the functional assembly, for example when the vehicle is switched off. In a preferred embodiment of the invention, the second

Data processing module and / or the raw data memory via the first

Record all accesses to the raw data memory that take place during the connection.

Further advantages and advantageous embodiments of the invention emerge from the description of the figures and the illustrations.

Figure description

The invention is described in detail below with reference to the figures. They show in detail:

Figure 1: A block diagram of a functional assembly in a special

Embodiment of the invention.

Figure 2: A block diagram of a functional assembly in another

specific embodiment of the invention.

Figure 3: A block diagram of a functional assembly in another

specific embodiment of the invention.

Figure 4: A block diagram of a functional assembly in another

specific embodiment of the invention.

Figure 5: A block diagram of a functional assembly in another

specific embodiment of the invention.

FIG. 6: A method for using a functional assembly in a further special embodiment of the invention.

FIG. 1 shows a block diagram of a functional assembly 10 in a special embodiment of the invention. The functional assembly 10 can be a

Have functional component 12 for effecting a technical function.

For example, the functional assembly 10 can be an assembly of a Be a motor vehicle. The functional component 12 can for example be a clutch for torque transmission in a drive train of the motor vehicle. The technical function can be the controllable torque transmission between a drive element and an output element.

The functional assembly 10 has a data acquisition unit 14 which is set up to output data characterizing the technical function as generated data 16. The data acquisition unit 14 can comprise at least one sensor 18 and a control device 20. The sensor 18 can be a torque sensor in the clutch. The control device 20 can be a clutch control device. The data 16 generated can be a physical measured variable, for example a measured torque of the sensor 18. The data acquisition unit 14 can additionally or alternatively form an interface for sensors 18 or control devices 20 which are arranged outside the data acquisition unit 14.

The functional assembly 10 also has a data processing unit 22, with a first data processing module 24, which is set up to process the generated data 16 as processed data 26, with a

Processing data memory 28, which is used to store the processed data 26 as processing data 30 and for the selective or complete output of the

Preparation data 30 is set up and with a second

Data processing module 32, which is used to process and output the

Processing data 30 is set up as transmission data 34. Of the

Editing data store 38 operates between the first

Data processing module 24 and the second data processing module 32 are arranged. The data processing unit 22 is connected to the data acquisition unit 14 via an interface 36.

The data processing unit 14 has a raw data memory 38 which, starting from a first point in time and over a first period of time, is set up to store the generated data 16 as raw data 40 and for the selective or complete output of the raw data 40 and is effective between the data acquisition unit 14 and the first data processing module 24 is arranged. The first data processing module 24 is thus set up to process the raw data 40 as processed data 26. The first data processing module 24 can the processed data 26 by applying algorithms from the

Generate raw data 40. The second data processing module 32 has a second connection 42 for accessing the raw data memory 38. The raw data memory 38 and the processing data memory 28 can each be designed as a permanent memory and each have a database.

The selective memory 28 can be a fault memory. The processing data 30 contained in the selective memory 28 can, for example, contain information on operating faults, wear data or information on

Be functional restrictions. The transmission data 34 can be in a

Workshop can be read out with a service device and / or in on one

Network storage, for example cloud storage, can be transferred. The transmission data can be error identifications, error descriptions, a point in time and / or a duration of the error.

Through the raw data memory 38 and the access of the second

Data processing module 32 on the raw data memory 38 via the second

Connection 42, not only the preparation data 30 for checking a malfunction or a behavior of the functional component 12, but also the entire raw data 40 in the raw data memory 38 can be used, evaluated and processed. This enables a more reliable evaluation of the

Operating behavior of the functional component 12 can be brought about. Can also

Amount of information can be increased.

The second data processing module 32 can output the transmission data 34 via an interface 44, in particular to a connection unit 46, for example a readout device. The transmission data 34 can be output via CAN, USB, WLAN, Bluetooth, UMTS, a network connection, an analog and / or digital data connection. The output of the transmission data 34 can be event-controlled, time-controlled and / or command-controlled.

The first data processing module 24 is set up, the raw data 40 in

To process time intervals during respective processing periods. The time intervals and / or the processing time periods can be specified by an event and / or a command. The processing of the raw data 40 as processed data 26 can be time-controlled, batch-wise and / or continuous respectively. For example, the processing can take place during a break in operation

Functional assembly 10, for example, when the vehicle is switched off.

The second data processing module 32 is set up to process the editing data 30 at time intervals during respective processing periods. The time intervals and / or the processing time periods can be specified by an event and / or a command. The processing of the preparation data 30 as transmission data 34 can take place in a time-controlled manner, batchwise and / or continuously. For example, processing during a break in operation can

Functional assembly 10, for example, when the vehicle is switched off.

The editing data 30 that are processed in a second processing period can be the further editing data 30 added in the editing data memory 28 from the beginning of one, during or after a first processing period, the second processing period being after the first processing period. This allows a

incremental processing of the preparation data 30 take place and the

Transmission data 34 can be available more quickly.

The second data processing module 32 has a first connection 50 to the first data processing module 24 and the processing of the raw data 40 as processed data 26 by the first data processing module 24 can depend on the first output via the first connection 50 by the second data processing module 32 to the first data processing module 24 Default data 52 be. As a result, the algorithms in the first data processing module 24 can be changed, for example from outside via the interface 44 or a further interface and switching via the second data processing module 32. By accessing the raw data memory 38, the changed algorithms can access raw data 40 unchanged by the preceding algorithms that are executed in the first data processing module 24. The changed

As a result, algorithms can access processed data 26 building up retrospective raw data 40 directly and also. A learning time, estimating data for the past or an uncertainty due to poor availability

Data volumes for processing in the first data processing module 24 can be omitted. The second data processing module 32 and / or the raw data memory 38 can record the accesses to the raw data memory 38 taking place via the second connection 42. This allows logging of the accesses to the

Raw data storage 38 take place. The raw data memory 38 can have its own for this

Provide data channels. By storing them as separate data channels in

These accesses can be evaluated and queried in raw data storage, in particular without a special additional system being required for this.

The second data processing module 32 can also have a firewall by means of which the external accesses via the interface 44 are controlled and influenced. Only certain external accesses can be permitted, while all other accesses can be blocked.

FIG. 2 shows a block diagram of a functional assembly 10 in a further special embodiment of the invention. The data processing unit 22 has a control module 54 which is set up to control the data acquisition unit 14. The control is carried out depending on by the second

Second specification data 56 output by the data processing module 32 to the control module 54 and also from the raw data 40 contained in the raw data memory 38 and the raw data contained in the processing data memory 28

Editing data 30, which are based on the raw data 40 by processing in the first data processing module 24 as processed data 26.

The control module 54 processes the second specification data 56 with the raw data 40 and the preparation data 30 to form control data 58, which via a

Interface 60 are output to the data acquisition unit 14. The data acquisition unit 14 can be influenced by the control data 58.

For example, the function of control devices 20 can be changed, in particular optimized. The controller can optimize the processes in the

Data acquisition unit 14 or a change in the settings in the

Be data acquisition unit 14.

The data acquisition unit 14 can be an interface to the firmware or

Form software of the sensors 18 or control devices 20. Through the

Data acquisition unit 14, updates can be uploaded to the sensors 18 or control devices 20. The data acquisition unit 14 thus forms a central one Management for the firmware of the peripherals and control devices. A

Connection unit 46 can call up the current software version of the peripherals and control devices 20 from outside via the interface 44 and via the data processing unit 22 and, if necessary, import new software versions. With the inclusion of the data processing unit 22, the security of the queries and the control of the connection unit 46 by the firewall can be increased. Furthermore, the second specification data 56 can be replaced by the second

Data processing module 32 are recorded and stored. Via the second data processing module 32, for example, checksums of the software or firmware of the sensors 18 or control devices 20 can be regularly queried and logged, and unlawful changes can be identified and tracked.

FIG. 3 shows a block diagram of a functional assembly 10 in a further special embodiment of the invention. The data processing unit 22 has a blockchain module 62. The blockchain module 62 enables one

Improvement of the data integrity in the data processing unit 22 and forms a protection against undetected data changes or data manipulation by a connection unit 46 or other change influences. This security can be advantageous, for example, if the transmission data 34 from the

Connection unit 46 can be used for billing, agreements, contracts or as evidence.

With each new entry of raw data 40 in the raw data memory 38, a blockchain value 68, for example a flash value, is updated in the blockchain module 62 via a blockchain logic 64 which is connected to a blockchain memory 66. These blockchain values 68 are stored in the blockchain memory 66. The blockchain memory 66 can be a write-once memory (PROM). The storage takes place together with an identification for which raw data 40 the blockchain value 68 was calculated. The marking can be a

Be time indication. The blockchain memory 66 is preferably designed in such a way that the blockchain values 68 can only be written once and can then no longer be changed. If the raw data 40 are subsequently changed, the associated and all subsequent blockchain values 68 would also change. However, since the blockchain values 68 in the blockchain memory 66 can no longer be changed, such a subsequent data change is recognizable and traceable.

The first data processing module 24 can only have read access to the blockchain memory 66 for integrity checks. The second can also

Data processing module 32 can only read the blockchain memory 66 and add the blockchain values 68 to the transmission data 34, so that the connection unit 46, for example a vehicle manufacturer, a system operator, a workshop, TÜV or the Federal Motor Vehicle Office

can access this data. Furthermore, an additional or alternative external storage of the blockchain values 68 increases the security against data manipulation. For example, the blockchain value 68 could be logged by the connection unit 46 when a vehicle is sold, so that it is possible to understand which events occurred before and which after a vehicle was sold or rented.

The data processing unit 22 can be used in a vehicle rental service or in car sharing. When picking up and dropping off a vehicle, the current blockchain value 68 can be queried by the connection unit 46 together with an identifier of the driver and stored as a contractual basis. These values are preferably transmitted, for example, to a central computer center and / or to a mobile device of the current user. In the event of any subsequent warranty claims, it can be clearly demonstrated which events occurred during the period of use by a user. For example, via

Acceleration sensors and / or structure-borne noise sensors vehicle collisions are identified and stored in the data processing unit 22. An improper driving style of the user of the vehicle can also be detected.

Such traceability can increase the trust and acceptance of the participants in car sharing.

FIG. 4 shows a block diagram of a functional assembly 10 in a further special embodiment of the invention. The data processing unit 22 is connected to one or more connection units 46 via an interface 70, for example via the Internet. A connection unit 72 at an insurance company, a connection unit 74 at a vehicle manufacturer and a connection unit 75 at an authority can be connected to the data processing unit 22.

Access to the data processing unit 22 of the functional assembly 10 is monitored and influenced by a firewall in the data processing unit 22. The respective connection unit 46 sends an access request 76 to a

Authorization unit 78 which can be under the control of an owner or owner of the functional assembly 10. With the access request 76, the respective connection unit 46 transmits which data of the data processing unit 22 is to be accessed and identifies itself with an access identifier,

for example a digital key, especially a public one

Encryption password. The authorization unit 78 checks the

Access request 76 and, if authorization is available, transmits release data 80 to data processing unit 22 which release the respective connection unit 46's access to data processing unit 22.

The data retrieved from the data processing unit 22 by querying the connection unit 46 and the data retrieved by an evaluation algorithm

executed processing can in particular already in the

Data processing unit 22 can be stored in order to effect a quick and easy query of the connection unit 46. If authorized, the authorization unit 78 can transmit an encryption password 82 to the respective connection unit 46, the encryption password 82 being the public one

Encryption password can be connected.

If authorization has taken place, the respective connection unit 46 can have a

Perform communication 84 with data processing unit 22. For example, the connection unit 74 of the vehicle manufacturer can provide information on the

Inquire about wear and tear and operation of the functional assembly 10 and / or send new or improved functions to the functional assembly 10.

FIG. 5 shows a block diagram of a functional assembly in a further special embodiment of the invention. The data processing unit 22 of Functional assembly 10, for example a vehicle, is connected via interface 44 to a connection unit 46 which is under the control of the owner or owner of functional assembly 10. An access request 83 from a third party 84, for example an insurance company 86 or a vehicle manufacturer 88, reaches the data processing unit 22 via the connection unit 46. The third party 84 specifies in the access request 83 which data of the data processing unit 22 is being accessed and which processing is being requested by the data processing unit 22 shall be. The connection unit 46 checks the access request and executes the query 90 if authorization is available. The one from the

The transmission data 34 output by the data processing unit 22 are signed by the connection unit 46 and passed on as output data 92 to the third party 84, digitally signed. For example, the output data 92 can be sent to the insurance company 86, which verifies the authenticity of this output data 92 by a

Signature confirmation request 94 for checking the signature to the

Vehicle manufacturer 88 and a confirmation message 96 sent back to insurance company 86 depending on the authenticity of the signature.

FIG. 6 shows a method for using a functional assembly in a further special embodiment of the invention. The

Data processing unit can be used in car sharing. The

The data processing unit can have various functions that are suitable or necessary for car sharing either directly or with minor extensions.

For example, the data processing unit can comprehensively record and evaluate various operating data of the functional assembly, a

Data storage and security of the stored data, in particular the raw data and processing data against manipulation, the suitability for

Communication with various sensors or control devices, for example with controls in the vehicle, in particular the engine control, the

Door locking system or other control devices, enable secure data transmission via interfaces including encryption, secure identification of communication partners and provide a firewall.

A user 100 reports to a car sharing provider with a request for a vehicle, for example via a mobile device, in particular via a smartphone and receives the location of the vehicle and optionally an access code for the vehicle from the car sharing provider. With this information, the user 100 connects to the data processing unit, for example via his mobile device and a Bluetooth connection, and sends a request 102 for the use of the vehicle. The data processing unit performs a

Verification 104 in which the admissibility of the request 102, for example via access codes previously transmitted to the smartphone of the user 100 or via communication with the car sharing provider, in particular via a UMTS connection of the provider or via a UMTS connection via the

Smartphone of the user 100, can be checked. The

Data processing unit inputs information as a function of this

Check result 106 from. If authorization is not available, a termination 108 takes place and if authorization is present, the data processing unit outputs transmission data 34, which can contain a confirmation 110 including a blockchain value 68, to the mobile device of the user 100.

The blockchain value 68 can serve as proof of the vehicle condition when the vehicle is taken over. The information about the user 100, the blockchain value 68 and a time stamp are saved 112 in the

Data processing unit stored and the relevant data through a

Transmission 114 is sent to a data center, it also being possible for this to be offset in time, since all data are stored in the data processing unit in a forgery-proof manner and the user's smartphone has also stored this data.

The data processing unit then effects a release 116 of the

Vehicle, for example by releasing an engine control or a lock. During the use 118 of the vehicle by the user 100, the currently accrued charges for the use of the vehicle can be displayed as binding or non-binding. When the use of the vehicle is complete, the user sends a message 120 to the data processing unit via his mobile device. Subject to a renewed release request, the data processing unit causes the vehicle to be blocked 122 for the user and other users. After locking 122 the vehicle, for example by Interlock, a calculation 123 and output 124 of

Charge information by the data processing unit to the mobile device of the user 100 and the data processing unit stores an updated blockchain value 68 through a storage unit 126. The updated blockchain value 68 is then transmitted with a usage protocol through a transmission 128 to the user's smartphone and / or to the Car sharing provider sent. The blockchain value 68 serves as evidence of the condition of the vehicle at the end of its use by the user. With this information a

Usage logs are created and billing 130 takes place. The raw data stored in the raw data memory in the data processing unit can, for example, provide a more reliable traceability of past processes in the event of subsequent discrepancies due to misuse or an accident with the vehicle. For example, the raw data can identify measured values from acceleration sensors or structure-borne noise sensors. This can also increase user acceptance of car sharing. Since the blockchain values 68 make it possible to understand which data arose during the use of the vehicle, incorrect assignments, for example of vehicle damage, can be corrected using the raw data. Saving the raw data also makes it possible to use evaluations for this purpose, which were only created subsequently. For the car sharing provider, there is the possibility that the charges for the use of the vehicle can be adjusted depending on the driving behavior of the user 100 and thus the costs for car sharing should decrease.

List of reference symbols

10 function module

12 functional component

14 data acquisition unit

16 generated data

18 sensor

20 control unit

22 data processing unit

24 first data processing module

26 processed data

28 Processing data memory

30 preparation data

32 second data processing module

34 Transmission data

36 interface

38 raw data storage

40 raw data

42 second connection

44 interface

46 Link Unit

50 first connection

52 first default data

54 control module 56 second specification data 58 control data

60 interface

62 blockchain module

64 Blockchain Logic

66 Blockchain Storage 68 Blockchain Value

70 interface

72 Link Unit

74 Link Unit

75 Link Unit

76 Access request

78 authorization unit 80 release data

82 Encryption Password

83 Access request

84 Third

86 Insurance

88 vehicle manufacturers

90 query

92 Output dates

94 Signature confirmation request. 96 Confirmation message

100 users 102 Inquiry 104 Review

106 Check result 108 Abort

110 confirmation

112 Storage

114 Transfer

116 Release

118 Use

120 message

122 Blocking

123 calculation

124 edition

126 Storage

128 transmission

130 settlement

Claims

1. Function module (10), having

at least one functional component (12) for effecting a technical

Function,

a data acquisition unit (14) which is set up to output data characterizing the technical function as generated data (16), a data processing unit (22) connected to the data acquisition unit (14) via a first interface (36), with

a first data processing module (24) which is set up to process the generated data (16) as processed data (26), with a processing data memory (28) which is used to store the

processed data (26) is set up as editing data (30) and with a second data processing module (32), which is set up to process and output the editing data (30) as transmission data (34) via a second interface (44) to a connection unit (46) is, where

the editing data memory (38) effective between the first

Data processing module (24) and the second data processing module (32) is arranged,

characterized in that

the data processing unit (22) has a raw data memory (38) which is set up to store the generated data (16) as raw data (40) starting from a first point in time and over a first period of time and is effective between the data acquisition unit (14) and the first data processing module (24) is arranged, the first

The data processing module (24) is set up for processing the raw data (40) as processed data (26) by using algorithms and the raw data (40) are designed to map at least the operating behavior of the functional component (12) in such a way that a subsequent

Reconstruction of the operating behavior can be effected.

2. Functional assembly (10) according to claim 1, characterized in that the second data processing module (32) has a first connection (50) to the first data processing module (24) and is set up that

Algorithms on the first data processing module (24) for processing the raw data (40) as processed data (26) via the second

To change data processing module (32) as required.

3. Function module (10) according to claim 1 or 2, characterized in that the data processing unit (22) has a security module (62) which is set up to transmit the respective data (26, 30, 40) and / or the respective algorithms via a To protect the encryption process from subsequent and unnoticed change.

4. Functional assembly (10) according to one of the preceding claims,

characterized in that the generated data (16) additionally comprise data transmitted from the connection unit (46) via the second data processing module (32) and a second connection (42) to the raw data memory (38).

5. Functional assembly (10) according to one of the preceding claims,

characterized in that the second data processing module (32) is set up to receive the preparation data (30) on request from the

Process connection unit (46).

6. Functional assembly (10) according to one of the preceding claims,

characterized in that the second data processing module (32) is set up as a central communication interface of the

To form the data processing unit (22) and / or the functional assembly (10) to the connection unit (46).

7. Functional assembly (10) according to one of the preceding claims,

characterized in that the preparation data (30) that are processed in a second processing period are from the beginning of, during or after a first processing period in the Editing data memories (28) are additional editing data (30), the second processing period being after the first processing period.

8. Functional assembly (10) according to one of claims 2 to 7, characterized

characterized in that the processing of the raw data (40) as processed data (26) by the first data processing module (24) is dependent on first specification data (52) output via the first connection (50) by the second data processing module (32).

9. Function module (10) according to one of the preceding claims,

characterized in that the second data processing module (32) partially or completely takes over the interface (44)

Record data exchange and / or access.

10. Function module (10) according to one of the preceding claims,

characterized in that the data processing unit (22) furthermore has a control module (54) which is used to control the

Functional assembly (10), in particular the data acquisition unit (14), is set up and the control is dependent on by the second

Data processing module (32) to the control module (54) is outputted second specification data (56).