Abstract: 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.

Abstract: 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.