Device for cleaning a driver assistance sensor of a motor vehicle

A method for cleaning a driving assistance system for a motor vehicle, comprising:

• receiving an item of information relating to a demand for cleaning of a first angular sector of a detection module,
• wherein the detection module comprises one sensor unit with a plurality of angular sectors arranged around an exterior of the detection module, and
• wherein the detection module is configured to acquire images within a given field of view;
• checking that one or more other angular sectors of the plurality of angular sectors are operational;
• sending a first instruction, a second instruction, and a third instruction to a cleaning device configured to clean an optical surface of the detection module,
• wherein the cleaning device comprises at least two spray rails for spraying a cleaning fluid, the at least two spray rails being arranged around the detection module, each spray rail being configured to clean one angular sector of the plurality of angular sectors, and each spray rail configured to be activated independently of the other spray rails;
• moving a first spray rail of the at least two spray rails from a retracted position to a deployed position based, at least in part, on the first instruction;
• spraying a volume of cleaning fluid from the first spray rail based, at least in part, on the second instruction;
• cleaning the first angular sector of the plurality of angular sectors;
• and
• moving the first spray rail from the deployed position to the retracted position based, at least in part, on the third instruction.