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Patexia Research
Patent No. US 11110899
Issue Date Sep 7, 2021
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Patent 11110899 - Vehicle and cleaning method of detection sensor mounted on vehicle > Claims

  • 1. A vehicle, comprising: a detection sensor used to detect a surrounding condition of the vehicle;a vehicle controller configured to perform drive control of the vehicle by using a signal output from the detection sensor;a fuel cell configured to generate electric power while generating water;an accumulating portion configured to accumulate the generated water discharged from the fuel cell therein as liquid water;a cleaning portion connected with the accumulating portion, provided with a nozzle that is open to the detection sensor, and configured to eject the liquid water accumulated in the accumulating portion through the nozzle and thereby clean the detection sensor under control of the vehicle controller;a compressor configured to feed a compressed gas that is supplied to the fuel cell and that is used for power generation;a gas piping connected with the fuel cell and arranged such that the compressed gas flows in; anda pressure piping connected with the gas piping, whereinthe cleaning portion causes the liquid water to be ejected from the nozzle by a pressure of the compressed gas that is transmitted from the gas piping through the pressure piping.
    • 2. The vehicle according to claim 1, wherein the vehicle controller detects adhesion of a foreign substance to the detection sensor by using the signal output from the detection sensor and causes the liquid water to be ejected from the nozzle toward the detection sensor when adhesion of the foreign substance is detected.
    • 3. The vehicle according to claim 1, wherein the vehicle controller repeatedly performs cleaning of the detection sensor by using the liquid water at predetermined cycles during power generation of the fuel cell and causes the liquid water that is not yet decreased to ordinary temperature to be discharged from the accumulating portion.
    • 4. The vehicle according to claim 1, wherein the accumulating portion includes a heat retaining portion configured to keep the liquid water warm.
    • 5. The vehicle according to claim 1, wherein the cleaning portion causes the compressed gas supplied through the pressure piping to be ejected from the nozzle, after ejection of the liquid water from the nozzle.
    • 6. The vehicle according to claim 1, further comprising: a branch piping branched off from the pressure piping, whereinthe cleaning portion includes a gas nozzle that is connected with the branch piping and that is configured to eject the compressed gas flowing from the pressure piping into the branch piping, toward the detection sensor.
    • 7. The vehicle according to claim 1, wherein the cleaning portion further includes a window nozzle configured to eject the liquid water toward a window glass of the vehicle.
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