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Method for inhibiting engine oil emulsification of hybrid electric vehicle

A hybrid vehicle, oil technology, applied in the direction of engine lubrication, engine components, machines/engines, etc., can solve problems such as the decline of oil lubrication performance, the reduction of engine reliability and life, the decline of fuel economy and power performance, etc.

Active Publication Date: 2021-03-23
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of emulsification will reduce the lubricating performance of the engine oil, which in turn will lead to a decrease in fuel economy and power, and a decrease in engine reliability and life

Method used

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  • Method for inhibiting engine oil emulsification of hybrid electric vehicle
  • Method for inhibiting engine oil emulsification of hybrid electric vehicle

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Embodiment Construction

[0011] A method for inhibiting the emulsification of hybrid vehicle engine oil, comprising the following steps:

[0012] A) The car CAN bus collects information such as ambient temperature, time, engine working time, mileage and other information to calculate the oil emulsification level;

[0013] B) When the oil emulsification level reaches the limit value, notify the owner to decide whether to carry out the oil-water separation work after the next charge;

[0014] C) When the car owner decides to carry out the oil-water separation work, the car CAN bus capture charging ends and the car owner does not remove the charging gun, the oil-water separation work starts, and the on-board charging system is turned on at the same time to continue charging the vehicle.

[0015] Use the CAN bus information of the car to capture the working condition of the end of the car charging and the car owner has not removed the charging gun, combined with the time (preferably in the early morning, ...

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Abstract

The invention aims to provide a method for inhibiting engine oil emulsification of a hybrid electric vehicle capable of reducing an engine oil emulsification phenomenon. The method comprises the following steps of: A) collecting information such as environment temperature, time, engine working time and mileage by a vehicle CAN bus to calculate an engine oil emulsification grade; B) when the engineoil emulsification grade reaches a limit value, informing a vehicle owner to decide whether to perform engine oil-water separation work or not after the next charging is finished; and C) when the vehicle owner decides to perform engine oil-water separation work and the vehicle CAN bus captures the working conditions that charging is finished and the vehicle owner does not remove a charging gun, starting the oil-water separation work, and simultaneously starting a vehicle-mounted charging system to continue to charge the vehicle. According to the scheme, the electricity consumed in the whole engine oil emulsification process is replenished by the vehicle-mounted charging system, fuel oil is not additionally consumed, the electricity of a battery is not consumed in the driving state, and the continuation of the next trip is not influenced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a method for suppressing engine oil emulsification of a hybrid electric vehicle. Background technique [0002] During the compression stroke and expansion stroke of the engine, the pressure of the mixed gas in the cylinder is very high, and part of the mixed gas will enter the gap between the piston, piston ring, piston ring opening and cylinder liner into the crankcase, and mix with the oil in the crankcase Stroke oil mist. Usually this part of the oil mist needs to be introduced into the oil-gas separation system through the channels integrated in the cylinder block, cylinder head and crankcase to separate the oil-gas and water vapor; if the oil-gas and water vapor are not separated thoroughly, the mixture of the two will be It will gather in the cylinder head cover and other places to form white foam (occasionally light yellow), which we call oil emulsification. The engine o...

Claims

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Application Information

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IPC IPC(8): F01M13/04F01M13/00F01M5/00
CPCF01M13/04F01M13/00F01M5/001F01M2013/0477F01M2013/0472
Inventor 程建超卢生林
Owner CHERY AUTOMOBILE CO LTD
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