Double-circulation cooling system with electronic supercharger positioned in high temperature cooling system

Abstract

The invention relates to a double-circulation cooling system with an electronic supercharger positioned in a high temperature cooling system. The double-circulation cooling system comprises a high temperature circulating cooling system and a low temperature circulating cooling system, wherein the high temperature circulating cooling system comprises an expansion water tank, a high temperature radiator, an engine cooling water jacket, a first water pump, an electronic thermostat, an engine oil cooler, the electronic supercharger and an air heater; and the low temperature circulating cooling system comprises an expansion water tank, a low temperature radiator, a turbocharger, a second water pump, an intercooler and a BSG. According to the double-circulation cooling system, the two circulating cooling systems are arranged, and the high temperature radiator and the low temperature radiator are arranged, so that the requirements of different to-be-cooled parts on the cooling temperature are effectively guaranteed; besides, in the technical scheme, the volume of the cooling system is not increased; and in the low temperature circulating cooling system, the BSG, the turbocharger and the intercooler are arranged in parallel, so that the pressure difference of the parts is guaranteed to be stable.

Description

technical field [0001] The invention belongs to the field of automobile cooling systems, and specifically refers to a dual-cycle cooling system in which an electronic supercharger is located in a high-temperature cooling system. Background technique [0002] Governments of various countries have promulgated more and more stringent standards for engine fuel consumption. For example, it is stipulated that automobile OEMs will continue to reduce fuel consumption to 5.0L / 100km in 2020; One technology is the supercharged miniaturization of the engine + hybrid technology. [0003] In response to local government regulations, a more innovative engine matching system must be found to accomplish this goal. Because on the premise of not losing power, it is basically an impossible task to reduce fuel consumption by 30% on the current basis. Therefore, it is proposed to use a hybrid power system + electronic supercharging on the engine, and achieve the requirement of reducing fuel con...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to propose an improved technical solution to the existing engine cooling system. Through this technical solution, the flow direction of the coolant circulation between different components can be better adapted to solve the problems of intercooler, BSG, electronic supercharger, turbine, etc. The cooling problem of the supercharger and the oil cooler can solve the high heat dissipation demand of the BSG at low engine speed and the delayed cooling function after the turbocharger is shut down

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