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Glow plug preheating control method

A preheating control and glow plug technology, applied in engine components, engine starting, machine/engine, etc., can solve problems such as poor preheating effect and difficult starting, and achieve quiet operation, reduced pollution, and good preheating effect. Effect

Active Publication Date: 2016-05-04
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a glow plug preheating control system and method to overcome the difficulty in starting the engine under the condition of low ambient temperature and preheating the engine in the prior art using the flame glow plug heating method. The problem of poor thermal effect

Method used

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  • Glow plug preheating control method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the glow plug preheating control system of this embodiment includes a power storage device 1, an ignition switch 2, an indicator light 3, a preheating control unit 4, a water temperature sensor 5, a glow plug relay 6, a glow plug connecting plate 7 and a glow plug 8. All components are connected by wires and connectors.

[0030] Wherein, the power storage device 1 is a storage battery, which is used to supply power to the entire system, and the storage battery is respectively connected with the ignition switch 2 and the glow plug relay 6; the preheating control unit 4 is respectively connected with the ignition switch 2, the indicator light 3, the water temperature sensor 5 and the The glow plug relay 6 is connected, and the preheating control unit 4 processes the engine coolant temperature value detected by the water temperature sensor 5 and the preset temperature value and time value to control the glow plug relay 6, thereby controlling the ...

Embodiment 2

[0040] The configuration of the glow plug preheating control system of this embodiment is the same as that of Embodiment 1.

[0041] The steps of the glow plug preheating control method in this embodiment include:

[0042] S1. Turn the ignition switch 2 to the ON gear, and detect the temperature of the engine coolant through the water temperature sensor 5;

[0043] S2. When the detected temperature of the engine coolant is lower than 10°C (preheating temperature), the preheating control unit 4 controls the glow plug 8 to start preheating the engine, the indicator light 3 is always on, and the preheating time is 30 seconds ;

[0044] When the glow plug 8 preheats the engine for 30 seconds, the indicator light 3 changes from constant light to flashing once per second, and the preheating is suspended, waiting for the engine to start;

[0045] S3. The waiting time after the preheating is suspended is 30 seconds. If the ignition switch 2 is not adjusted to the Start position with...

Embodiment 3

[0050] Compared with Embodiment 1, the composition of the glow plug preheating control system of this embodiment cancels the indicator light.

[0051] The steps of the glow plug preheating control method in this embodiment include:

[0052] S1. Turn the ignition switch 2 to the ON gear, and detect the temperature of the engine coolant through the water temperature sensor 5;

[0053] S2. When the detected temperature of the engine coolant is less than 15°C (starting warm-up temperature), the preheating control unit 4 controls the glow plug 8 to start preheating the engine, and the preheating time is 40 seconds;

[0054] When the glow plug 8 preheats the engine for 40 seconds, the preheating is suspended, waiting for the engine to start;

[0055] S3. The waiting time after the preheating is suspended is 40 seconds. If the ignition switch 2 is not adjusted to the Start position within 40 seconds after the preheating is suspended, the glow plug preheating control system will stop w...

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Abstract

The invention relates to the field of automobile manufacture, and particularly discloses a preheat control system and method for a glow plug. The preheat control system comprises an electrical storage device, an ignition switch, a preheat control unit, a water temperature sensor and a glow plug device. The preheat control method comprises the following steps of turning the ignition switch to an ON gear; detecting the temperature of engine coolant through the water temperature sensor; controlling the glow plug to preheat an engine through the preheat control unit when the temperature of the engine coolant is less than preset temperature; turning the ignition switch to a Start gear so as to start the engine; controlling the glow plug to start and then heat the engine through the preheat control unit; stopping the work of the preheat control system for the glow plug when the temperature of the engine coolant is greater than the preset temperature or the time of starting and then heating the engine by the glow plug reaches a preset time. According to the preheat control system and the preheat control method, the problem that a light diesel passenger car is difficultly started in a low-temperature environment is solved, a good preheat effect is achieved, and more than 40% of pollution discharge is reduced.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to a glow plug preheating control system and method for a light-duty diesel passenger car. Background technique [0002] When starting the engine of a light-duty diesel bus in cold regions and severe cold seasons, due to the high viscosity of the engine oil, the starting resistance increases, which may easily cause problems such as difficulty in starting the engine. In the prior art, the engines of Scenic 4D20 light-duty diesel buses and other models use the flame glow plug heating method to preheat the engine, but this preheating method can only meet the starting requirements when the ambient temperature is minus 20°C at the lowest. , Under the condition of low ambient temperature, it is difficult to start, the preheating effect is poor, the environmental pollution is serious, and the preheating process cannot be intelligently controlled. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02N19/06
Inventor 李洋肖薇李达基鲍建鹏李元华王焕秋
Owner BEIQI FOTON MOTOR CO LTD