Process for monitoring the coolant level in a cooling system

Details Process for monitoring the coolant level in a cooling system Process for monitoring the coolant level in a cooling system

1992-06-30

1993-08-31

Yasich, Daniel M.

Measuring and testing

Liquid level or depth gauge

With other measuring device

62129, 340585, 340622, 374143, G01K 1300, G01K 3168

Patent

active

052398650

ABSTRACT:
A process for monitoring the coolant level in a cooling system, in particular in a motor vehicle in which the relative pressure and the temperature of the coolant are measured on the high-pressure side of the coolant circuit, using the measured pressure value. A temperature assigned to the pressure value is established on the basis of a coolant specific function (temperature=f (pressure)) and the undercooling of the coolant is then determined by subtracting the measured temperature from the assigned temperature, which undercooling is analyzed as a measure for the coolant level.

REFERENCES:
patent: 3729949 (1973-05-01), Talbot
patent: 4510576 (1985-04-01), MacArthur et al.
patent: 4652854 (1987-03-01), Kelly
patent: 4672920 (1987-06-01), Duprez
patent: 4848096 (1989-07-01), Funahashi et al.
patent: 4856288 (1989-08-01), Weber
patent: 5044168 (1991-09-01), Wycoff

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