Intelligent control system and control method for fuel oil heating

A technology of intelligent control system and heating controller, applied in charging system, fuel heat treatment device, liquid fuel feeder, etc., can solve problems such as poor engine starting performance, improve starting performance, ensure normal starting, reduce The effect of running costs

CN106150779AActive Publication Date: 2016-11-23DONGFENG COMML VEHICLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-11-23

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Abstract

The invention relates to an intelligent control system for fuel oil heating. The intelligent control system comprises an engine, an engine controller, a main oil tank, an auxiliary oil tank, a fuel oil heating controller and a storage battery. The main oil tank is communicated with the engine through a main oil tank switch valve, the auxiliary oil tank is communicated with the engine through an auxiliary oil tank switch valve, the engine controller is in signal connection with the fuel oil heating controller, and the fuel oil heating controller is electrically connected with an ignition switch, the main and auxiliary oil tank switch valves, a relay coil, a fuel oil heating switch and a temperature controlled switch; the positive pole of the storage battery is grounded through a battery main switch, a relay contact and a main oil tank heater in sequence, and the negative pole of the storage battery is grounded; when the temperature of an oil sucking opening of the main oil tank is lower than 5 DEG C, an oil way is switched to an auxiliary oil tank loop so as to start the engine, when the rotating speed of the engine reaches 700 rpm, the main oil tank heater starts to heat, when the temperature of the oil sucking opening of the main oil tank reaches 25 DEG C, heating is stopped, and the oil way is switched to a main oil tank loop. By means of the intelligent control system, the starting performance of the engine is improved, and the safety and the reliability are high.
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Description

technical field

[0001] The invention relates to the field of automobile electrical systems, in particular to an intelligent fuel heating control system and a control method thereof, which are mainly suitable for avoiding the problem of battery feeding caused by excessive heating power during static heating, thereby improving the starting performance of the engine. Background technique

[0002] As the outside temperature decreases, the viscosity and density of diesel oil both increase. Increased viscosity and increased density of diesel oil lead to poor fluidity, which affects the starting of the diesel engine and the normal operation of the engine. To ensure the normal starting of the engine, it is necessary to use low-grade diesel oil. For normal cars, when the ambient temperature is 6 degrees lower than the diesel label, it will affect the normal start of the engine. Therefore, it is recommended to use 0﹟ diesel oil when the temperature is above 4°C; -10﹟ diesel oil when...

Examples

Embodiment 1

[0084] see Figure 1 to Figure 3 , an intelligent control system for fuel heating, comprising a fuel heater, a fuel heating controller 5, and a fuel heating switch 9, the fuel heater and the fuel heating switch 9 are respectively electrically connected to the fuel heating controller 5, and the fuel heating intelligent The control system also includes an engine 1, an engine controller 8, a main fuel tank 2, an auxiliary fuel tank 3, a main and auxiliary fuel tank switching valve 4, and an ignition switch 11; the fuel heating controller 5 is electrically connected to the ignition switch 11 and the main and auxiliary fuel tank switching valve 4 respectively, The engine 1 is electrically connected to the engine controller 8, and the engine controller 8 is connected to the fuel heating controller 5 for signals (the engine controller 8 performs signal transmission with the fuel heating controller 5 through the CAN bus 12); the main fuel tank 2 and the auxiliary fuel tank 3 The oil p...

Embodiment 2

[0087] Basic content is the same as embodiment 1, the difference is:

[0088] see Figure 1 to Figure 3 , the fuel heating intelligent control system also includes a storage battery 14, a main power switch 15, a No. 1 temperature control switch 13, and a No. 1 relay 17. The fuel heater includes a main fuel tank heater 19 for controlling the main fuel tank 2 The fuel is heated; the fuel heating controller 5 is grounded after the fuel heating switch 9, the fuel heating controller 5 is grounded after the No. 1 temperature control switch 13, and the fuel heating controller 5 is electrically connected with the coil of the No. 1 relay 17. The positive pole of the storage battery 14 is grounded successively through the main power switch 15, the first fuse 16, the contacts of the first relay 17, the second fuse 18, and the main oil tank heater 19, and the negative pole of the storage battery 14 is grounded;

[0089] The fuel heating intelligent control system also includes an oil-wat...