Internal combustion engine cooling water flow intelligent control method based on RBF neutral network

Abstract

The invention discloses an internal combustion engine cooling water flow intelligent control method based on an RBF neutral network. According to the method, an RBF neutral network model suitable forpredicting the water temperature of an internal combustion engine is designed, and the designed RBF neutral network model is trained and tested through a temperature data set, acquired through measurement, of the internal combustion engine; and the water temperature predicted temperature of the internal combustion engine is calculated through the RBF neutral network model, the temperature difference between the predicted temperature and the target water temperature is calculated, the cooling water flow is adjusted and controlled according to the temperature difference, the operating temperature of the internal combustion engine is subjected to temperature compensation, and therefore the operating water temperature of the internal combustion engine is within a target water temperature interval in real time. The modern electronic information technology is applied to control over a cooling circulation system of the internal combustion engine, it is guaranteed that the internal combustionengine always keeps or approaches the optimal temperature interval in any climatic environment for work, thus, part abrasion aggravation is truly achieved, tail gas emission is reduced, the working manner of the internal combustion engine is improved, and then the purposes of saving energy and reducing emission are achieved.

Description

technical field [0001] The invention relates to an intelligent control method for cooling water flow of an internal combustion engine based on an RBF neural network. Background technique [0002] Energy saving and emission reduction is not only related to the country's energy security, but also can significantly reduce transportation costs and vehicle operation and maintenance costs, and affect the effectiveness of air pollution prevention and control. It is a major trend in the development of the domestic and foreign automobile industries. Energy conservation and emission reduction are closely related to the country's energy security. China is the second largest country in oil consumption. Effectively reducing the fuel consumption of internal combustion engines has become an important trend in the development of my country's internal combustion engine industry, and is directly related to my country's energy security strategy. Fuel oil accounts for 30-50% of the entire trans...

AI Technical Summary

Problems solved by technology

But in fact, most internal combustion engines work when the water temperature of the body is lower than 85°C, especially diesel engines generally work between 50°C and 75°C. Roughness, reduced power, increased fuel consumption

At present, domestic and international diesel vehicles mainly use thermostats to achieve temperature regulation, but thermostats have many shortcomings: 1) It cannot control the water temperature of the internal combustion engine within the optimum operating temperature range; 2) It cannot minimize the wear of the internal combustion engine ; 3) The water temperature of the internal combustion engine cannot be well controlled, resulting in poor fuel combustion, which will increase fuel consumption to varying degrees; 4) The working temperature of the internal combustion engine cannot be well controlled, and the fuel combustion is insufficient, resulting in more waste gas and toxic gases, pollution environment, endangering human health; 5) the water temperature of the internal combustion engine cannot be controlled within the optimum working range, the temperature inside the car is low in winter, and the driver and passengers feel unbearably cold

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