Method, device and system for checking a device for a vehicle for detecting an impact
First Claim
1. A method for checking an impact detection device for a vehicle comprising:
- detecting, with a pressure sensor, a first pressure level of fluid in a hose of the impact detection device at a first time;
operating a valve to place the hose in fluid communication with a volume that is external to the hose;
detecting, with the pressure sensor, a second pressure level of the fluid in the hose at a second time after operation of the valve, the second time being later than the first time; and
identifying, with a processing device, a blockage in the hose in response to a difference between the first pressure level and the second pressure level exceeding a predetermined threshold.
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Accused Products
Abstract
Method for checking a device for a vehicle for detecting an impact, in particular an impact with a pedestrian, by means of at least one impact-sensing means which is based on at least a first volume, in particular by means of an impact-sensing means which is based on at least one hose, a device having means for carrying out such a method and a corresponding system, in which at least one first variable is acquired, wherein the at least one first variable represents a pressure and/or a volume and/or a change in pressure and/or a change in volume in the first volume, and a result of the checking of the device is determined as a function of a profile of the at least one first variable.
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Citations
8 Claims
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1. A method for checking an impact detection device for a vehicle comprising:
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detecting, with a pressure sensor, a first pressure level of fluid in a hose of the impact detection device at a first time; operating a valve to place the hose in fluid communication with a volume that is external to the hose; detecting, with the pressure sensor, a second pressure level of the fluid in the hose at a second time after operation of the valve, the second time being later than the first time; and identifying, with a processing device, a blockage in the hose in response to a difference between the first pressure level and the second pressure level exceeding a predetermined threshold. - View Dependent Claims (2, 3, 4)
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5. An impact detection device for a vehicle comprising:
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a hose; a valve connected to the hose; a pressure sensor configured to detect a pressure level of a fluid in the hose; and a processing device connected to the valve and the pressure sensor, the processing device being configured to; detect a first pressure level of fluid in a hose of the impact detection device at a first time with the pressure sensor; operate the valve to place the hose in fluid communication with a volume that is external to the hose; detect a second pressure level of the fluid in the hose with the pressure sensor at a second time after operation of the valve, the second time being later than the first time; and identify a blockage in the hose in response to a difference between the first pressure level and the second pressure level exceeding a predetermined threshold. - View Dependent Claims (6, 7, 8)
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Specification