A kind of intercooler and thermal management method

Abstract

The invention relates to an intercooler, which comprises a heat exchange part, an air inlet located on one side of the heat exchange part for communicating with a supercharger, and an air inlet located on the other side of the heat exchange part for connecting with an engine intake manifold An open air outlet; it is characterized in that the interior of the heat exchange part is divided into an upper heat exchange area and a lower heat exchange area, and the two sides of the heat dissipation pipe in the upper heat exchange area are connected with the air inlet and the air outlet respectively , the inlet of each cooling pipe in the lower heat exchange area is correspondingly equipped with a solenoid valve. The inlet of the heat dissipation pipe is adapted to open and close, and the number and state of opening and closing of the solenoid valve are controlled by the engine ECU. The invention realizes the closed-loop adjustment of the opening and closing quantity and opening state of the electromagnetic valve, reduces the intake air volume and heat exchange area of ​​the intercooler, and ensures the exhaust gas temperature after the intercooler.

Description

technical field [0001] The invention relates to an automobile intercooler, in particular to an intercooler and a heat management method, belonging to the technical field of auto parts structures. Background technique [0002] The intercooler is a matching part of the turbocharger. Its function is to reduce the temperature of the high-temperature air after supercharging, so as to reduce the heat load of the engine, increase the intake air volume, and then increase the power of the engine. [0003] The heat exchange area of ​​the existing intercooler is set to meet the maximum allowable temperature of the heat balance. Because the heat exchange area is fixed, the heat dissipation area of ​​the intercooler has a surplus in winter when the ambient temperature is low and the load is low. Parameters such as the intake air temperature after the intercooler (maximum requirement of 55°C) are low, and the unfavorable ambient temperature brings great challenges to thermal management. ...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to provide a solution to the problems of low exhaust temperature, urea crystallization, low post-treatment conversion efficiency and the lighting of OBD fault lights caused by the intercooler under low temperature conditions. The solution can significantly Reduce the impact of harsh ambient temperature on the exhaust temperature and emissions of the intercooler, increase the intake air temperature after the intercooler, and increase the exhaust temperature of the engine by the same value

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