Automotive washer system with a purge apparatus and a method therefore

摘要

A washer system and a method are provided for purging the washer liquids contained within a washer system. A first reservoir 21 containing a freezable washer liquid 40, a second reservoir 23 containing a freeze-resistant washer liquid 48, and an exit circuit 28 are fluidically coupled to a fluid distribution circuit 26. A fluid purge apparatus 61 is also coupled to the fluid distribution circuit 26. An electronic control module (ECM) 20 is electrically coupled to the fluid distribution circuit 26, the fluid purge apparatus 61 and a temperature sensor 86. The ECM 20 controls the fluid purge apparatus 61 upon receiving a temperature signal from the temperature sensor 86. The fluid purging apparatus 61 purges freezable washer liquid 40 from a portion of the fluid distribution circuit 26, during temperatures at or below a predetermined temperature, to prevent the washer liquid from freezing within the fluid distribution circuit.