Altitude-based electrically-controlled diesel internal combustion engine fuel injection quantity acquisition method
A diesel internal combustion engine, altitude technology, applied in the direction of internal combustion piston engine, electrical control, combustion engine, etc., can solve the problems of low fuel consumption, poor emission characteristics, insufficient engine power, etc., to achieve high operating efficiency and improve the effect of emission performance
Active Publication Date: 2021-03-26
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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[0003] The purpose of the present invention is to solve the problems of insufficient power, low fuel consumption, and poor emission characteristics of existing engines in plateau conditions, and to provide a method for obtaining fuel injection volume of electronically controlled diesel internal combustion engines based on altitude
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[0045] The content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046]The invention provides a method for obtaining the fuel injection quantity of an electronically controlled diesel internal combustion engine based on the altitude, with the purpose of realizing the control of the fuel injection quantity of the engine at different altitudes. This method is a modular fuel injection control method, which adjusts the controlled quantity according to multiple input parameters, and calculates the corresponding fuel injection quantity according to different intake air density gradients, which not only improves the engine emission performance and protects the turbocharger And other equipment, but also enable the engine to give full play to the power of the plateau state. In addition, this method improves the combustion efficiency and emission of electronically controlled diesel engines wit...
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The invention provides an altitude-based electrically-controlled diesel internal combustion engine fuel injection quantity acquisition method. The problems of insufficient power, low fuel consumptionand poor emission characteristic of an existing engine in a plateau state are solved. The altitude-based electrically-controlled diesel internal combustion engine fuel injection quantity acquisition method comprises the following steps that 1, a query table is set; 2, parameter values are set, and engine information is read; 3, the expected fuel injection quantity is calculated; 4, the maximum fuel injection quantity is calculated; 5, the engine maximum fuel injection quantity is calculated; 6, the limited fuel injection quantity is calculated; and 7, the engine final expected fuel injection quantity is calculated. The altitude-based electrically-controlled diesel internal combustion engine fuel injection quantity acquisition method is a modular oil injection control method, the controlledquantity is adjusted according to multiple paths of input parameters, the corresponding oil injection quantity is calculated according to different air inlet density gradients, so that the emission performance of an engine is improved, equipment such as a turbocharger is protected, and the dynamic property of the engine in a plateau state can be fully exerted.
Description
technical field [0001] The invention belongs to the field of internal combustion engine power control, and in particular relates to a method for obtaining fuel injection quantity of an electronically controlled diesel internal combustion engine based on altitude. Background technique [0002] Due to the low air intake density of the engine in the plateau state, the engine intake air is insufficient, which in turn produces plateau reactions such as lack of power and black smoke. The traditional method adjusts the fuel injection quantity through the intake air density. However, this method only prevents the engine turbocharger from being damaged when the intake air density is low. The performance parameters have been fully adjusted, so that the engine still has problems such as insufficient power, low fuel consumption, and poor emission characteristics under plateau conditions. Contents of the invention [0003] The purpose of the present invention is to solve the problems ...
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Login to View More IPC IPC(8): F02D41/30F02D41/14
CPCF02D41/3005F02D41/1475F02D2200/101Y02T10/40
Inventor 于正同时培燕毛宁冯健朋林凯马振华
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA