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Method and device for controlling exhaust gas recirculation valve, medium, electronic equipment and vehicle

An exhaust gas recirculation valve, vehicle technology, applied in the field of vehicles, can solve the problems of increased NOx, low EGR rate, etc.

Active Publication Date: 2022-06-24
BEIQI FOTON MOTOR CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0003] However, during the rapid acceleration of the vehicle, the engine of the vehicle needs more air volume, because the response of the supercharger will be delayed, in order to ensure the dynamic performance of the vehicle, the exhaust gas entering the engine of the vehicle will be reduced, so that the EGR rate lower, leading to an increase in NOx emitted by the vehicle

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  • Method and device for controlling exhaust gas recirculation valve, medium, electronic equipment and vehicle
  • Method and device for controlling exhaust gas recirculation valve, medium, electronic equipment and vehicle
  • Method and device for controlling exhaust gas recirculation valve, medium, electronic equipment and vehicle

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[0030] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, but not to limit the present disclosure.

[0031] In the following description, words such as "first" and "second" are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying order.

[0032] First, the application scenarios of the present disclosure will be described. The combustion process of the diesel engine belongs to the diffusion combustion of the spray. Due to the short mixing time of the fuel spray and the air, the mixture is not uniform, and a high temperature and excessive concentration area and a high temperature flame area are formed during the combustion process. In the h...

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Abstract

The invention provides a method and device for controlling an exhaust gas recirculation valve, a medium, electronic equipment and a vehicle, and relates to the technical field of vehicles. The method comprises the steps that the current rotating speed of an engine of the vehicle, the fuel quantity of a fuel injector of the vehicle in a target period and the maximum fresh air quantity allowed to enter by the engine in the target period are obtained; and the minimum fresh air amount required for the engine to normally operate in the target period; according to the fuel quantity of the fuel injector and the current rotating speed, the current transient working condition of the vehicle is determined; the target fresh air amount is determined according to the maximum fresh air amount, the minimum fresh air amount, the oil injector oil amount, the current rotating speed and the current transient working condition; and controlling an exhaust gas recirculation valve of the vehicle according to the target fresh air amount. In this way, the amount of waste gas entering the engine of the vehicle can be adjusted according to the target fresh air amount of the vehicle, and therefore NOx discharged by the vehicle is reduced by adjusting the EGR rate.

Description

technical field [0001] The present disclosure relates to the technical field of vehicles, and in particular, to a method, a device, a medium, an electronic device and a vehicle for controlling an exhaust gas recirculation valve. Background technique [0002] With the deteriorating global environment, emission regulations are becoming more and more stringent on the emission requirements of engines. In order to make the emission of the diesel engine meet the regulatory requirements, the harmful emission of NOx (nitrogen oxide) can be reduced by the EGR (Exhaust Gas Recirculation, exhaust gas recirculation) technology. [0003] However, in the process of rapid acceleration of the vehicle, the engine of the vehicle needs more air volume. Since the response of the supercharger will be delayed, in order to ensure the dynamic performance of the vehicle, the exhaust gas entering the engine of the vehicle will be reduced, so that the EGR rate will be reduced. lower, resulting in an ...

Claims

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Application Information

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IPC IPC(8): F02D41/00F02D29/02
CPCF02D41/0077F02D29/02F02D2200/101F02D2200/0614F02D2200/04F02D2250/36Y02T10/40
Inventor 黄力杨新春郑德生邓小龙邓燕红
Owner BEIQI FOTON MOTOR CO LTD
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