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Method for controlling cooling fans of internal combustion locomotive

A cooling fan and control method technology, applied in the control of coolant flow, engine cooling, pump control, etc., can solve the problems of high reliability and complicated control procedures, and achieve cost reduction, redundancy improvement, and large traction performance Effect

Inactive Publication Date: 2016-12-07
CRRC DALIAN CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This control method needs to add an auxiliary inverter, the cost is far more than that of the contactor, and the auxiliary inverter needs to be programmed, because it is stepless control, the control program is more complicated, and the reliability is not as high as that of the contactor.

Method used

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  • Method for controlling cooling fans of internal combustion locomotive

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Embodiment Construction

[0015] now attached figure 1 To further explain the invention, the normal diesel engine cooling water system is divided into high temperature water system and low temperature water system, these two water systems are independent circulation, do not interfere with each other, diesel engine high temperature cooling water system is for diesel engine cylinder liners, cylinder heads, etc. Cooling, the low-temperature water system only cools the intercooling water in the intercooler, and the radiator and cooling fan of the locomotive are also independent, divided into high-temperature and low-temperature radiators and cooling fans, of which the high-temperature radiator and high-temperature cooling fan are for diesel engines The high-temperature water dissipates heat, and the low-temperature radiator and low-temperature cooling fan dissipate heat for the low-temperature water of the diesel engine, such as figure 1 As shown, the gist of the present invention is that the increased hig...

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Abstract

The invention discloses a method for controlling cooling fans of an internal combustion locomotive. The method comprises a high-temperature radiator and a low-temperature radiator which are used for radiating of a diesel engine; the high-temperature cooling fan is used for radiating of the high-temperature radiator, the low-temperature cooling fan is used for radiating of the low-temperature radiator, and the high-low temperature cooling fan is used for radiating of the high-temperature radiator and the low-temperature radiator; a locomotive microcomputer detects temperature values of a high-temperature water temperature sensor, a low-temperature water temperature sensor and an environment temperature sensor and sends out a control command after the temperature values are compared with setting values; and the control command controls the rotating speed of the high-temperature cooling fan and the rotating speed of the low-temperature cooling fan through contactors, and controls the rotating speed of the high-low temperature cooling fan through an auxiliary inverter. The control method combining pole changing control and frequency converting control is adopted, the auxiliary power of the locomotive is reduced, and the wheel circumference power of the locomotive is improved.

Description

technical field [0001] The invention relates to the technical field of diesel locomotives, in particular to a method for controlling a cooling fan of a diesel locomotive. Background technique [0002] The cooling fan of diesel locomotive provides air source for the radiator, and cools the cooling water in the radiator by inhaling air from the outside of the vehicle, so as to meet the heat dissipation requirements of the diesel engine. There are generally two driving methods for cooling fans: 1) Hydrostatic motor drive (mechanical transmission): At the free end of the diesel engine, the hydrostatic gearbox is connected to the diesel engine through a transmission shaft, and two static hydraulic gearboxes are installed at the other end of the gearbox. The hydraulic pump, the hydrostatic pump converts the mechanical energy into the pressure energy of the lubricating oil, and then converts the pressure energy of the lubricating oil into mechanical energy through the hydrostatic m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/04F01P7/12F01P11/16F04D27/00
CPCF01P7/048F01P7/12F01P11/16F01P2025/13F01P2031/22F04D27/004
Inventor 李云龙李斌谷涛黄勇孙传庆刘鹏毕昱
Owner CRRC DALIAN CO LTD