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Method of controlling a cooling circuit of an internal combustion engine

An internal combustion engine and cooling circuit technology, applied in the direction of engine cooling, engine components, machines/engines, etc., can solve the problems of large fuel consumption and uneven engine temperature, and achieve the effect of improving temperature control and temperature

Active Publication Date: 2016-08-17
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] One problem with these cooling systems is that due to the on / off switching of the pump, the temperature of the engine is not always optimal and excessive fuel consumption can occur

Method used

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  • Method of controlling a cooling circuit of an internal combustion engine
  • Method of controlling a cooling circuit of an internal combustion engine
  • Method of controlling a cooling circuit of an internal combustion engine

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Embodiment Construction

[0136] Exemplary embodiments will now be described with reference to the accompanying drawings, without the intention of limiting applications and uses.

[0137] Some embodiments may include figure 1 with figure 2 The illustrated automotive system has an internal combustion engine (ICE) 110 with an engine block 120 that defines at least one cylinder 125 and the cylinder has a piston 140 coupled to rotate a crankshaft 145. The engine head 130 cooperates with the piston 140 to define a combustion chamber 150. A fuel and air mixture (not shown) is placed in the combustion chamber 150 and ignited, resulting in thermally expanding exhaust gas that causes the reciprocating movement of the piston 140. Fuel is provided by at least one fuel injector 160 and air passes through at least one intake port 210. Fuel is provided to the fuel injector 160 from a fuel rail 170 in fluid communication with a high-pressure fuel pump 180 at high pressure, which increases the pressure of the fuel rece...

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PUM

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Abstract

A method of operating a cooling circuit (600) of an internal combustion engine (110) is disclosed. The engine (110) is equipped with an engine head (130), and the cooling circuit (600) includes a pump (610) configured to deliver a variable flow of coolant through the cooling circuit (600). A coolant flow rate (%_WP FF) to be delivered by the pump is calculated as a function of an engine load (Eload), an engine speed (Espeed) and a desired engine head temperature (MTS_des), and the pump (610) is operated to deliver the calculated coolant flow rate (%_WP FF).

Description

Technical field [0001] The technical field relates to a method of controlling a cooling circuit of an internal combustion engine. Background technique [0002] Internal combustion engines equipped with cooling systems are known. Cooling systems are generally provided for cooling internal combustion engines and other engine fluids, such as exhaust gas in an EGR cooler and / or lubricating oil in an oil cooler. [0003] The cooling system schematically includes a coolant pump that delivers coolant (typically a mixture of water and antifreeze) from the coolant tank to a plurality of cooling passages internally defined by the engine block and the engine head. [0004] The coolant pump is generally integrated in an internal combustion engine and is a fixed flow pump including moving parts (typically an impeller), which is housed in a seat implemented in the engine block, and directly delivers the coolant in the cooling channel. [0005] The coolant pump is also associated with the thermosta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/16
CPCF01P7/164F01P7/165F01P2025/30F01P2025/46F01P2025/50F01P2025/60F01P2025/62F01P2025/64F01P2050/22F01P7/167F01P2007/146F01P2025/66F01P5/10F01P7/14
Inventor M.比兰恰S.巴尔贝罗S.班巴乔尼S.马夫里西
Owner GM GLOBAL TECH OPERATIONS LLC