Vehicle performance-based turbocharger matching model selection method
A technology of turbocharger and supercharger, which is used in instruments, special data processing applications, electrical digital data processing, etc. to achieve the effect of improving performance
Inactive Publication Date: 2017-05-31
凤城市合鑫机械制造有限公司
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Problems solved by technology
The traditional supercharger matching method only considers the matching between the supercharger and the engine, and performs matching work with a single design point. This matching method has certain limitations
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[0021] The present invention is illustrated below in conjunction with specific embodiments.
[0022] Supercharger-engine simulation platform, vehicle simulation platform
[0023] Establishment of one-dimensional model of original gasoline engine
[0024] Aiming at the research on the supercharging of a 1.5L gasoline engine, a turbocharger-engine simulation platform and a vehicle simulation platform are established based on GT-SUIT. In the turbocharger selection stage, the influence of the selected supercharger on the performance of the vehicle is considered, and the influence on the performance of the vehicle is taken as one of the indicators for evaluating the selected supercharger.
[0025] Taking a domestic 1.5L naturally aspirated four-cylinder four-stroke gasoline engine as the carrier, the basic parameters of the gasoline engine are shown in Table 1.
[0026] Table 1 Basic parameters of gasoline engine
[0027]
[0028] Apply GT-Power software to establish the nume...
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The invention discloses a vehicle performance-based turbocharger matching model selection method. The method is characterized in that turbocharger matching model selection is carried out by analyzing the requirements of a full vehicle on the performance of an engine and the requirements of the engine on the performance of a turbocharger. The method comprises the steps of (1) establishing a one-dimensional model of an original gasoline engine: establishing an original engine numerical value simulation model by applying GT-Power software according to basic parameters of the gasoline engine, and using a corresponding predefined module in a GT-Power software module library to establish an engine simulation model; (2) establishing a one-dimensional model of a turbocharged gasoline engine; (3) establishing a one-dimensional model of a full vehicle: establishing a full vehicle steady state calculation model, a kinematics calculation module and a dynamics computation module by using the GT-Power software; carrying out simulating calculation so as to select out the turbocharger conforming with multiple working condition requirements. The vehicle performance-based turbocharger matching model selection method has the advantage that the matching analysis of the turbocharger is carried out based on vehicle performance and according to supercharge matching demands of actual vehicle models, so that the performance of the engine is improved.
Description
technical field [0001] The invention relates to the technical field of automobile engines, in particular to a turbocharger matching method. Background technique [0002] Exhaust gas turbocharging has become a key technology for gasoline engines to save energy and reduce emissions. At the end of the 1970s, foreign gasoline engines began to gradually adopt supercharging technology, and developed rapidly. Moreover, some automobile companies in the United States, Europe, and Japan have launched their own mature products, which are in the stage of perfection and promotion. The traditional supercharger matching method only considers the matching between the supercharger and the engine, and performs matching work with a single design point. This matching method has certain limitations. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide a turbocharger matching selection method based on vehicle perfo...
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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 王琦玮刘杨侯伟
Owner 凤城市合鑫机械制造有限公司