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A cooling method and system device for a hybrid electric bus engine

A technology of engine cooling and hybrid power, applied in the direction of engine cooling, engine components, combustion engines, etc., can solve the problems affecting the comprehensive emission performance of the engine, the cooling efficiency of the engine technology is not high enough, and the fan cannot be controlled accurately and effectively, so as to improve Thermal aging resistance and service life, good heat dissipation performance, cost-saving effect

Active Publication Date: 2016-03-30
HUNAN CSR TIMES ELECTRIC VEHICLE
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AI Technical Summary

Problems solved by technology

[0011] The problem to be solved by the present invention is: the cooling efficiency of the existing engine technology is not high enough, and the fan cannot be accurately and effectively controlled according to the change of the engine water temperature or air temperature, and if no deicing measures are taken in winter, it will affect the Insufficient comprehensive emission performance of the engine, a hybrid bus engine cooling method and cooling system device with high cooling efficiency and effective prevention of cooling system freezing in winter are proposed

Method used

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  • A cooling method and system device for a hybrid electric bus engine
  • A cooling method and system device for a hybrid electric bus engine
  • A cooling method and system device for a hybrid electric bus engine

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Embodiment 1

[0055] look first Figure 1~3 A method and system device for cooling an engine of a hybrid electric vehicle, comprising two parts: an engine cooling system for cooling the engine and an aftertreatment heating system for providing auxiliary heating function for aftertreatment.

[0056] The engine cooling system includes an intercooler 4, which is connected to the engine 2 through an air pipeline; a radiator 6, which is arranged on the rear side of the intercooler 4, and is connected to the engine 2 through a water pipeline; The rear side of the radiator 6; the first group of electronic fans 5 and the second group of electronic fans 9 are arranged on the inside of the windshield ring 8, including a plurality of electronic fans F1, F2 for cooling the intercooler 4 and the radiator 6 , F3, F4, multiple electronic fans are suction fans.

[0057] The air inlet of intercooler 4 is connected with engine supercharger by intercooler intake pipeline 11, and the air outlet of intercooler...

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Abstract

Disclosed are an engine cooling method and an engine cooling system device for hybrid electric buses. According to the method, electronic fans are used to cool an engine; engine outgoing water temperature and engine incoming gas temperature are controlled precisely in real time through the hierarchical logic control of the electronic fans. In the hierarchical logic control of the electronic fans, two electronic fan sets, namely a first electronic fan set and a second electronic fan set, are used; a bus controller outputs a control signal group to control start and stop of the first electronic fan set; the bus controller outputs a second control signal group to control start and stop of the second electronic fan set. The hierarchical control of the electronic fans is characterized in that the first electronic fan set is started in a delayed manner and stopped with priority, and the second electronic fan set is started with priority and stopped in a delayed manner. The engine cooling method and the engine cooling system device for hybrid electric buses have the advantages that radiating performance of the engine can be optimized, the service lives of the electronic fans can be prolonged, the auxiliary heating function is provided for the stage IV postprocessing system and the emission of harmful gases such as nitric oxide from the engine is reduced.

Description

technical field [0001] The invention relates to an engine cooling method and a system device, in particular to an engine cooling method and a system device of a hybrid electric passenger car; it is mainly used for engine cooling of a hybrid electric passenger car. Background technique [0002] Engine cooling system is a very important part of traditional bus and hybrid bus, which directly affects the service performance and life of the engine. [0003] At present, the main technology of the engine cooling system is to use the fan transmission mechanism of the intermediate transition wheel, and use the belt drive to drive the fan to rotate to achieve the purpose of heat dissipation; Precise and effective control will waste 5% to 12% of the power of the engine, and the fan noise is relatively loud. Especially the electronic fan that adopts now is exposed in the engine compartment, under the situation that the ventilation effect of the engine compartment is not good, the high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/08F02B29/04F01P5/02F02B33/40F01N3/20
CPCY02T10/12
Inventor 唐明忠陈煌熙席力克常承英陈诗库刘善锷罗冲旷彪孙涛
Owner HUNAN CSR TIMES ELECTRIC VEHICLE
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