Device and process for determining the freezing point of cleaning fluid
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Abstract
A device and a method for determining the freezing point of a washer fluid with a heater for heating the washer fluid. The invention provides a temperature sensor, which provides continuous electric signals, which represent the current temperature values of the washer fluid, and an analyzing and controlling unit, which ascertains the temperature behavior of the washer fluid from the signals and determines the characteristic values of the washer fluid from the ascertained temperature behavior.
5 Citations
23 Claims
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1-14. -14. (canceled)
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15. A device for determining the freezing point of a washer fluid with
a heater for heating the washer fluid characterized by a temperature sensor, which provides electric signals, which represent the current temperature values of the washer fluid, and an analyzing and controlling unit, which ascertains the temperature behavior of the washer fluid from the signals and determines the characteristic values of the washer fluid from the ascertained temperature behavior.
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23. A method for determining the freezing point of washer fluid, in which process the washer fluid is heated,
wherein the temperature behavior of the washer fluid is ascertained; - and
the characteristic values of the washer fluid are determined from the ascertained temperature behavior.
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Specification