Water temperature correction device and method thereof for engine
AssigneeHyundai Motor Company
InventorJin-Tae Seok
Life of this patent
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Abstract
A water temperature correction device and method thereof controls operation of an internal combustion engine by determining when a water temperature sensed is higher than a predetermined reference value, to accurately perform control of an internal combustion engine regardless of external influences. A water temperature sensor detects a temperature of cooling water in an internal combustion engine. A microcomputer receives the water temperature value detected by the water temperature sensor to determine whether the received water temperature value is above a predetermined reference value, and outputs a corrected control signal when it is determined that the detected water temperature is above the predetermined reference value.
Claims4
A water temperature correction device for an engine comprising:
- a water temperature sensor for detecting a temperature of cooling water in an internal combustion engine;
- a microcomputer for receiving a water temperature value detected by the water temperature sensor to determine whether the received water temperature value is above a predetermined reference value, and for outputting a predetermined correction control signal when it is determined that the detected water temperature is above the predetermined reference value;
- and
- correction means combined with an interface circuit controlled by the predetermined correction control signal output from the microcomputer for correcting the water temperature value detected by the water temperature sensor and applying the corrected water temperature to the microcomputer.
A water temperature correction method for an engine, comprising the steps of:
- receiving a water temperature value detected by a water temperature sensor to determine whether the value is higher than a predetermined set-up reference temperature;
- outputting a predetermined correction control signal when the detected water temperature value is higher than the predetermined set-up reference temperature;
- and
- utilizing the water temperature value corrected by the predetermined correction control signal to establish voltage values stored by temperatures in a map table in a memory for generating a corrected control signal.
Dependencies are inferred from the claim text.