| 摘要 |
A system, controller, and method for detecting moisture on a windshield that uses an isolated electrode coupled to a windshield. The isolated electrode is configured to exhibit an electrical impedance indicative of moisture present on a surface the windshield. The controller is configured to determine an electrode impedance value corresponding to the electrical impedance exhibited by the isolated electrode for detecting moisture on the windshield. By using an isolated electrode, the system is simpler and less expensive than other systems that have at least one electrode providing a return path for another electrode. Also, a way to use the isolated electrode for both detecting moisture on the windshield, and heating the windshield is described.
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