Engine knock detection method, device and equipment based on decision tree and storage medium thereof

Abstract

The invention relates to the field of automobiles, and discloses an engine knock detection method, device and equipment based on a decision tree and a storage medium thereof. The engine knock detection method based on the decision tree comprises the steps: acquiring the operation data of an engine, wherein the operation data comprises the type and operation conditions of the engine and knock sensor signals of all air cylinders when the engine operates under the operation conditions within a preset period; and inputting the operation data of the engine into a knock classification model to determine whether each cylinder of the engine knocks within a predetermined period or not, wherein the knock classification model is obtained by inputting a plurality of data samples of engines of variousmodels into a decision tree classifier. Knock detection of engines of various types can be achieved, a pressure sensor does not need to be installed in an engine air cylinder, and the detection cost is greatly reduced.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a decision tree-based engine knock detection method, device, equipment and storage medium thereof. Background technique [0002] With the improvement of people's awareness of environmental protection and the demand caused by the shortage of energy prices, as well as the support of the development of computer technology such as large-scale integrated circuits, the electronic engine control system has become an essential equipment for automobiles. The electronic control system of gasoline engine can be divided into open-loop control system and closed-loop control system according to the control mode. In the open-loop electronic control system, the electronic control unit (ECU) controls according to the pre-programmed program according to the parameters of each working condition. In the closed-loop electronic control system, a feedback sensor is added, which enables the ECU to perform fe...

AI Technical Summary

Problems solved by technology

Can be done under experimental conditions, but it will cause high cost for actual production mode

[0007] For the traditional knock detection method, the experimental environment is often for a single engine for multiple repeated parameter adjustment experiments, which is not conducive to the actual production environment

When a new engine type appears, it is necessary to carry out the detonation test on the engine again, and the cost and manpower are high

Moreover, the traditional knock detection method needs to install a pressure sensor in the cylinder. This type of sensor is often expensive and has a short life.

It is acceptable in the experimental environment, but the cost is relatively high if it is actually put into the production environment

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