Method for transmitting measured data, and sensor device

1. A method for transmitting measured data from a sensor device to a control device, wherein synchronization messages sent by the control device are received in the sensor device and, on the basis of the reception of synchronization messages, the sensor device is put into a synchronous mode (SM) in which the sensor device sends data messages comprising the measured data to the control device in sync with the reception of the synchronization messages,

wherein a check is performed to determine when synchronization messages sent by the control device are received in the sensor device, and the sensor device is put into the synchronous mode (SM) if the result of the check is that synchronization messages sent by the control device are received in line with a first time pattern, and wherein the sensor device is put into an asynchronous mode (AM) if the result of the check is that the synchronization messages are not received in the sensor device in line with the first time pattern, wherein in the asynchronous mode (AM) the sensor device sends data messages comprising the measured data to the control device at a prescribed frequency.

2. The method as claimed in claim 1 wherein a check is performed to determine at what intervals of time synchronization messages sent by the control device are received in the sensor device.

3. The method as claimed in claim 1 , wherein the first time pattern comprises a minimum number of successive synchronization messages which are received at intervals of time which are respectively within a prescribed first range.

4. The method as claimed in claim 1 , wherein the sensor device is put into a first asynchronous mode if the result of the check is that the synchronization messages sent by the control device are received in the sensor device in line with a second time pattern, wherein in the first asynchronous mode data messages comprising the measured data are sent to the control device at a first frequency.

5. The method as claimed in claim 4 , wherein the second time pattern comprises a minimum number of successive synchronization messages which are received at intervals of time which are respectively within a prescribed second range, the second range comprising shorter intervals of time than the first range.

6. The method as claimed in claim 1 , wherein the sensor device is put into a second asynchronous mode if the result of the check is that the synchronization messages are not received in the sensor device in line with a prescribed time pattern, wherein in the second asynchronous mode data messages comprising the measured data are sent to the control device at a second frequency.

7. The method as claimed in claim 6 , wherein the sensor device is put into a second asynchronous mode if the result of the check is that the synchronization messages are not received in the sensor device in line the first or second prescribed pattern.

8. The method as claimed in claim 1 , wherein a time window is prescribed for the check to determine when the synchronization messages sent by the control device are received in the sensor device.

9. The method as claimed in claim 8 , wherein the time window is prescribed for the check to determine at what intervals of time the synchronization messages sent by the control device are received in the sensor device.

10. The method as claimed in claim 8 , wherein whenever a synchronization message is received in the sensor device the time window is reinitialized if the sensor device is in the synchronous mode (SM) or asynchronous mode.

11. The method as claimed in claim 1 , wherein the check to determine when synchronization messages sent by the control device are received in the sensor device is effected using a timestamp measurement method.

12. The method as claimed in claim 11 , wherein the check to determine at what intervals of time synchronization messages sent by the control device are received in the sensor device is effected using a timestamp measurement method particularly.

13. The method as claimed in claim 1 , wherein the sensor device and the control device are connected to one another by means of a data bus.

14. The method as claimed in claim 1 , wherein the sensor device is a sensor cluster in a motor vehicle which has at least one longitudinal acceleration sensor, at least one rotation rate sensor, or both at least one longitudinal acceleration sensor and at least one rotation rate sensor.

15. The method as claimed in claim 14 , wherein the at least one longitudinal acceleration sensor is a lateral acceleration sensor.

16. The method as claimed in claim 14 , wherein the at least one rotation rate sensor is a yaw rate sensor.

17. The method as claimed in claim 1 , wherein the control device is a control device in a motor vehicle for performing driving dynamics control.

18. A computer program product stored on Non-transitory computer readable medium comprising software code sections which are used to carry out a method in accordance with claim 1 when the software code sections are executed on a processor.

19. A sensor device comprising at least one sensor whose measured data are transmitted to a control device, wherein the sensor device is configured to receive synchronization messages sent by the control device, wherein, on the basis of the reception of synchronization messages, the sensor device is configured to be put into a synchronous mode (SM) in which the sensor device sends data messages comprising the measured data to the control device in sync with the reception of the synchronization messages,

wherein the sensor device is configured to perform a check to determine when synchronization messages sent by the control device are received in the sensor device, and the sensor device is put into the synchronous mode (SM) if the result of the check is that synchronization messages sent by the control device are received in line with a first time pattern, and wherein the sensor device is put into an asynchronous mode (AM) if the result of the check is that the synchronization messages are not received in the sensor device in line with the first time pattern, wherein in the asynchronous mode (AM) the sensor device sends data messages comprising the measured data to the control device at a prescribed frequency.

20. A method for transmitting measured data from a sensor device to a control device comprising the steps of:

transmitting synchronization messages via the control device;

receiving the synchronization messages at the sensor device;

operating the sensor device in a synchronous mode (SM), on the basis of the reception of synchronization messages, wherein in the synchronous mode (SM) the sensor device transmits data messages comprising the measured data to the control device in sync with the reception of the synchronization messages that are transmitted by the control device, and

wherein a check is performed to determine when synchronization messages sent by the control device are received in the sensor device, and the sensor device is put into the synchronous mode (SM) if the result of the check is that synchronization messages sent by the control device are received in line with a first time pattern, and wherein the sensor device is put into an asynchronous mode (AM) if the result of the check is that the synchronization messages are not received in the sensor device in line with the first time pattern, wherein in the asynchronous mode (AM) the sensor device sends data messages comprising the measured data to the control device at a prescribed frequency.