Abstract: A vehicle sensor cleaning system that includes one or more vehicle sensors and a cleaning device. The system may further include an area to accommodate expansion of fluids due to freezing, such as a spring-loaded expansion valve, a floating barb expansion valve, or a three-way valve to a standpipe. The system may include systems and methods to evacuate the manifold such as purging with compressed or ambient air, or a syringe or drain valve mechanism. The system may be heated by a heating device such as a PTC heater, a resistive wire, or a low current coil. The system may provide a track or line to recirculate the fluid. These systems and methods may be incorporated into any portion of the system and in any combination. The systems and methods may be actuated by a mechanical or electrical switch that turns on based on direct pressure as a result of expanding or freezing fluid, in response to input by a temperature, pressure, or other sensor, or in response to automated or user input.

Abstract: A vehicle sensor cleaning system that includes one or more vehicle sensors and a cleaning device. The system determines parameters for a cleaning event based on sensed information, operating parameters of the vehicle, or environmental information. The system cleans the one or more sensors to allow for safe operation of the vehicle.