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Control method for preventing engine oil emulsifying of oil electric air compressor used for automobile

A technology of electric air compressor and control method, which is applied in the direction of pump control, machine/engine, mechanical equipment, etc., can solve the problems of complex control, high use cost, and inability to effectively use electric energy, etc., and achieve simple control, high versatility, Ease of Upgrading

Active Publication Date: 2016-12-07
XIAMEN GOLDEN DRAGON BUS
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  • Abstract
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Problems solved by technology

However, the existing methods are often costly to use, complicated to control, and unable to effectively utilize electric energy.

Method used

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  • Control method for preventing engine oil emulsifying of oil electric air compressor used for automobile
  • Control method for preventing engine oil emulsifying of oil electric air compressor used for automobile
  • Control method for preventing engine oil emulsifying of oil electric air compressor used for automobile

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Embodiment Construction

[0016] In order to illustrate the technical solutions of the present invention more clearly, a brief introduction will be made below in conjunction with the drawings and embodiments. Obviously, the drawings in the following description only relate to some embodiments of the present invention, and do not limit the present invention.

[0017] Absolute humidity (D) is the unit volume (1m 3 ) contains the mass of water vapor (g), D=g / m 3 ; Relative humidity (rh) is the ratio of the water vapor pressure (e) in the gas to the saturated water vapor pressure (es) of the gas, rh=e / es×100%. It can be seen from the above that when the number of water vapor is constant under the same pressure, the higher the temperature, the lower the relative humidity. Therefore, increasing the air temperature in the electric air compressor can reduce the relative humidity in the electric air compressor.

[0018] see figure 1 As shown, the oily electric air compressor anti-oil emulsification control m...

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Abstract

The invention discloses a control method for preventing engine oil emulsifying of an oil electric air compressor used for an automobile. By being combined with the characteristics of the electric air compressor, the control method is used for dynamically controlling the electric air compressor to operate according to the relative environment humidity and the temperature and air pressure inside an electric air compressor body, so that engine oil emulsifying of the electric air compressor is prevented. The control method for preventing the engine oil emulsifying of the oil electric air compressor used for the automobile can conduct control easily, and is low in cost, high in operating reliability and high in engine oil emulsifying preventing capability.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a control method for preventing oil emulsification of an oil-filled electric air compressor for automobiles. Background technique [0002] The current environmental situation is getting worse and worse. In response to national policies, new energy buses are becoming more and more popular. As the product with the highest working efficiency among air compressors, oil-powered electric air compressors are widely used in new energy buses. However, the electric air compressor cannot meet the effective load rate under the condition that the vehicle starts and stops less, resulting in a continuous increase in the failure rate, which seriously affects the service life of the product and driving safety. At present, the load rate of the electric air compressor is increased and the emulsification of the lubricating oil is avoided mainly through regular maintenance, improving the ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06F04B49/00F04B39/02
CPCF04B39/02F04B49/00F04B49/06
Inventor 张建青张汝辉林剑健林必生
Owner XIAMEN GOLDEN DRAGON BUS
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