Rain detection system and method of controlling the same
Patent 7098618 Issued on August 29, 2006. Estimated Expiration Date: June 24, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
318/444, Variable periods or intervals between controlling operations318/443, PERIODIC, REPETITIOUS OR SUCCESSIVE OPERATIONS CONTROL OF MOTOR, INCLUDING "JOG" AND "INCH" CONTROL318/440, HAVING PLURAL, DIVERSE OR DIVERSELY CONTROLLED SOURCES318/483, Moisture content or wetness324/665, By comparison or difference circuit250/222.2Particle detection
A rain detection system generates an operation signal for operating a wiper system on a window based on a detected window condition. The rain detection system includes a detection mechanism for intermittently detecting an amount of liquid on the window, a calculation mechanism for calculating an increase rate of the amount of the liquid detected in a detection operation by the detection mechanism and a determination mechanism for determining the window condition based on the increase rate calculated by the calculation mechanism. The determination mechanism distinguishes difference between condensation on the window and rain based on the detected liquid on the window.