Method and system for data recording in a vehicle combination

1 . A method for data recording of a vehicle combination, where the vehicle combination includes a first vehicle and a second vehicle, the first vehicle including a first data recorder and the second vehicle including a second data recorder,

the method comprising:

collecting, by the first data recorder, first vehicle operational data of the first vehicle that is a towing vehicle of the vehicle combination; and

collecting, by the first data recorder, second vehicle operational data of the second vehicle that is a towed vehicle of the vehicle combination coupled to the towing vehicle.

2 . The method according to claim 1 , further comprising:

collecting, by the second data recorder, the second vehicle operational data of the second vehicle; and

collecting, by the second data recorder, the first vehicle operational data of the first vehicle.

3 . The method according to claim 2 , further comprising:

detecting a failure in one of the first and second data recorders; and

only when the failure has been detected in the second data recorder, collecting the second vehicle operation data in the first data recorder;

only when the failure has been detected in the first data recorder, collecting the first vehicle operation data in the second data recorder.

4 . The method according to claim 3 , wherein

the step of detecting the failure comprises ascertaining an absence of a keepalive signal or receiving of a failure signal.

5 . The method according to claim 2 , wherein

the first vehicle operational data are collected by a plurality of first data sources and/or the second vehicle operational data are collected by a plurality of second data sources,

and wherein

the steps of collecting vehicle operational data by the first data recorder and/or by the second data recorder comprise storing the collected vehicle operational data in a local storage device or at a remote storage device utilizing a wired data link or a wireless data communication.

6 . The method according to claim 1 , wherein the first vehicle includes a first domain controller for controlling a collection and forwarding of data, and/or wherein the second vehicle includes a second domain controller for controlling a collection and forwarding of further data,

the method further comprising:

exchanging the first vehicle operational data and/or the second vehicle operational data between the first domain controller and the second domain controller utilizing a wireless or wired connection.

7 . The method according to claim 1 , wherein the collecting is carried out during driving of the vehicle combination.

8 . A system for data recording of a first vehicle, comprising:

a first data recorder configured to collect first vehicle operational data of the first vehicle, wherein the first vehicle is a towing vehicle that forms a vehicle combination with a second vehicle that is a towed vehicle coupled to the towing vehicle; and

a first control unit configured to:

control collecting first vehicle operational data of the first vehicle in the first data recorder; and

control collecting second vehicle operational data of the second vehicle in the first data recorder.

9 . The system according to claim 8 , wherein the first control unit is further configured to:

detect a failure of a second data recorder in the second vehicle;

control collecting second vehicle operational data only upon detecting the failure,

wherein the second data recorder, when operating correctly, is configured to collect second vehicle operational data of the second vehicle.

10 . The system according to claim 9 , wherein

the first vehicle comprises a first domain controller and/or the second vehicle comprises a second domain controller, the first and second domain controllers being adapted to provide at least one function independent from collecting vehicle operational data,

the first data recorder and/or the first control unit are integrated in the first domain controller;

the second data recorder and/or the second control unit are integrated in the second domain controller.

11 . A vehicle combination, comprising:

at least two coupled vehicles; and

a system for data recording according to claim 8 ,

wherein the system is implemented in one or both of the at least two coupled vehicles of the vehicle combination.

12 . A vehicle combination according to claim 11 , further comprising:

a communication interface for exchanging vehicle operational data collected by respective data recorders between both of the two coupled vehicles.

13 . A computer product comprising a non-transitory computer-readable storage medium with stored program code which, when extended in one or more processors, carries out the acts of:

collecting, by a first data recorder, first vehicle operational data of a first vehicle that is a towing vehicle in a vehicle combination, where the vehicle combination includes the first vehicle and a second vehicle that is a towed vehicle coupled to the towing vehicle, the first vehicle including the first data recorder and the second vehicle including a second data recorder; and

collecting, by the first data recorder, second vehicle operational data of the second vehicle.