Device for detecting the impact of an object on a vehicle

摘要

The invention relates to a device for detecting the impact of an object on a vehicle, which comprises a hose filled with a filling medium. The device also comprises a first pressure sensor which is connected with a first end of the hose and a second pressure sensor connected with a second end of the hose. An electronic control unit is connected with the first and the second pressure sensor and is designed for the processing of the signals received by the first and the second pressure sensor. The hose is sealed off with respect to the environment and the first and the second pressure sensor, so that the internal pressure of the filling medium is independent of an ambient pressure. The electronic control unit is designed for processing temperature-caused changes of the internal pressure as a criterion for the diagnosis of the operability of the device.

主权项

1. A device for detecting the impact of an object on a vehicle, comprising:
a hose filled with a filling medium, wherein the hose has a first end and a second end situated opposite the first end; a first pressure sensor connected with the first end of the hose, and a second pressure sensor connected with the second end of the hose, wherein the first and the second pressure sensors each provide a signal representing an internal pressure of the filling medium in the hose, including temperature-caused changes to the internal pressure during vehicle operation; an electronic control unit connected by way of connection lines with the first and the second pressure sensor for the exchange of data, wherein the electronic control unit is configured to process the signals received from the first and the second pressure sensor, wherein the hose is sealed off with respect to the environment and the first and the second pressure sensors such that the internal pressure of the filling medium in the hose is independent of an ambient pressure and thereby fluctuates depending on temperature, and wherein the electronic control unit is configured to process the sensor detected temperature-caused changes to the internal pressure during vehicle operation as a criterion for a diagnosis of operability of the device.