CN-117028047-B - Diesel engine control method, device, equipment and storage medium

CN117028047BCN 117028047 BCN117028047 BCN 117028047BCN-117028047-B

Abstract

The embodiment of the application discloses a diesel engine control method, a device, equipment and a storage medium, and relates to the technical field of automatic control; and adjusting various control parameters of the diesel engine based on the operation condition data and the environmental temperature, and adjusting the working condition of the diesel engine based on the adjusted various control parameters. The diesel engine control device provided by the application further pertinently controls the preheating, starting and rotating speed of the diesel engine by collecting signals such as the rotating speed, the oil pressure and the oil temperature of the diesel engine and analyzing the collected information, so that the diesel engine control device can adapt to severe environments such as extremely cold, high heat and high humidity.

Inventors

ZHANG TIEJUN
WANG WENLONG
ZHOU HONGBING
FENG WEN
YAN LI

Assignees

湖北三江航天万峰科技发展有限公司

Dates

Publication Date: 20260505
Application Date: 20230825

Claims (7)

1. A diesel engine control method, characterized by comprising: collecting the operating condition data and the environmental temperature of the diesel engine in real time; Adjusting various control parameters of the diesel engine based on the operating condition data and the environmental temperature; Adjusting the working condition of the diesel engine based on the adjusted various control parameters; The operation condition data comprise diesel engine power, diesel engine rotating speed, combustion chamber temperature, fuel consumption and oil temperature; Calculating a thermal efficiency of the diesel engine based on the ambient temperature, the combustion chamber temperature, and the fuel consumption; the adjusting various control parameters of the diesel engine based on the operating condition data and the environmental temperature comprises the following steps: If the thermal efficiency is lower than a thermal efficiency threshold, calculating a difference value between the thermal efficiency and the thermal efficiency threshold, and generating a temperature adjustment coefficient based on a standard temperature corresponding to the thermal efficiency threshold and the environmental temperature; and adjusting a preheating device of the diesel engine based on the temperature adjustment coefficient, and adjusting the oil temperature and the air inlet temperature through the preheating device.
2. The method of claim 1, wherein said adjusting various control parameters of said diesel engine based on said operating condition data and said ambient temperature comprises: if the ambient temperature is lower than the temperature threshold value, acquiring the rotating speed of the diesel engine and the temperature of the combustion chamber in real time; And if the real-time diesel engine rotating speed is lower than a diesel engine starting rotating speed threshold value and the temperature of the combustion chamber is lower than the compression ignition temperature of diesel oil, adjusting a preheating device of the diesel engine, and adjusting the oil temperature and the air inlet temperature of the diesel engine through the preheating device.
3. The method of claim 1, wherein a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and a cooling water temperature, and if the first temperature coefficient is above an upper temperature limit, adjusting power to a cooling system of the diesel engine and emitting an alarm signal.
4. The method according to claim 1, characterized in that a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, the cooling water temperature, and if the first temperature coefficient is below a lower temperature limit, a preheating device of the diesel engine is adjusted, by which the oil temperature and the intake air temperature of the diesel engine are adjusted; and/or, prompting to increase the warm-up time of the diesel engine.
5. A diesel engine control device, characterized by comprising: The information acquisition unit is used for acquiring the operating condition data and the environment temperature of the diesel engine in real time; The control unit is used for adjusting various control parameters of the diesel engine based on the operation condition data and the environmental temperature; the execution unit is used for adjusting the working condition of the diesel engine based on the adjusted various control parameters; The operation condition data comprise diesel engine power, diesel engine rotating speed, combustion chamber temperature, fuel consumption and oil temperature; Calculating a thermal efficiency of the diesel engine based on the ambient temperature, the combustion chamber temperature, and the fuel consumption; the adjusting various control parameters of the diesel engine based on the operating condition data and the environmental temperature comprises the following steps: If the thermal efficiency is lower than a thermal efficiency threshold, calculating a difference value between the thermal efficiency and the thermal efficiency threshold, and generating a temperature adjustment coefficient based on a standard temperature corresponding to the thermal efficiency threshold and the environmental temperature; and adjusting a preheating device of the diesel engine based on the temperature adjustment coefficient, and adjusting the oil temperature and the air inlet temperature through the preheating device.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any one of claims 1 to 4 when the program is executed.
7. A non-transitory computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any of claims 1 to 4.

Description

Diesel engine control method, device, equipment and storage medium Technical Field The present application relates to the field of automatic control technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling a diesel engine. Background The diesel engine is characterized by that it uses closed space to compress air to produce high heat, and after atomized diesel oil is injected, the air is combusted and expanded to push piston to make downward movement along cylinder, and the linear movement of piston is changed into rotary movement of crank by means of crank-connecting rod mechanism formed from piston and crankshaft, and the inertia of flywheel can drive piston to make exhausting, sucking and compressing circulation movement so as to output mechanical work. Other component systems such as diesel engine fuel systems, cooling systems, lubrication systems, steering systems, crankshaft linkages, etc. are involved in converting fuel into mechanical energy. The system comprises a diesel engine fuel system, a cooling system, a lubricating system and other systems, wherein the systems all need an electric control system for monitoring and controlling, and people can intuitively know the actual working conditions of the diesel engine such as the running rotating speed of the diesel engine, the oil pressure and the cooling temperature of the diesel engine during running and the like through the system. The existing diesel engine control device is narrow in temperature range and cannot adapt to severe environments such as extremely cold, high heat, high humidity and the like. The high-power diesel engine has the problems of difficult compression ignition under the low-temperature environment because the temperature of the air intake in the cylinder is too low, thereby influencing the starting performance of the diesel engine under the low-temperature environment, and the engine damage such as carbon deposition and the like can be caused by easy deflagration under the high-temperature environment. Disclosure of Invention The embodiment of the application provides a diesel engine control method, a device, equipment and a storage medium, which are used for solving the defects of the related technology, and the technical scheme is as follows: In a first aspect, an embodiment of the present application provides a diesel engine control method, including: collecting the operating condition data and the environmental temperature of the diesel engine in real time; Adjusting various control parameters of the diesel engine based on the operating condition data and the environmental temperature; and adjusting the working condition of the diesel engine based on the adjusted various control parameters. In an alternative aspect of the first aspect, the operating condition data includes diesel power, diesel speed, combustion chamber temperature, fuel consumption, oil temperature. In an alternative of the first aspect, the thermal efficiency of the diesel engine is calculated from the ambient temperature, the combustion chamber temperature and the fuel consumption. In an alternative aspect of the first aspect, the adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes: If the thermal efficiency is lower than a thermal efficiency threshold, calculating a difference value between the thermal efficiency and the thermal efficiency threshold, and generating a temperature adjustment coefficient based on a standard temperature corresponding to the thermal efficiency threshold and the environmental temperature; and adjusting a preheating device of the diesel engine based on the temperature adjustment coefficient, and adjusting the oil temperature and the air inlet temperature through the preheating device. In an alternative aspect of the first aspect, the adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes: if the ambient temperature is lower than the temperature threshold value, acquiring the rotating speed of the diesel engine and the temperature of the combustion chamber in real time; And if the real-time diesel engine rotating speed is lower than a diesel engine starting rotating speed threshold value and the temperature of the combustion chamber is lower than the compression ignition temperature of diesel oil, adjusting a preheating device of the diesel engine, and adjusting the oil temperature and the air inlet temperature of the diesel engine through the preheating device. In an alternative of the first aspect, a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and a cooling water temperature, and if the first temperature coefficient is higher than an upper temperature limit, power of a cooling system of the diesel engine is adjusted, and an alarm