Diesel automobile low-temperature starting preheating system

Abstract

The utility model discloses a preheating system for low-temperature starting of a diesel automobile. The preheating system comprises a sensing module, a preheating module and a control module, wherein the sensing modules are fixedly arranged inside and / or outside a diesel automobile body respectively; the preheating modules are respectively and fixedly arranged near and / or inside a diesel automobile cooling system, an intake manifold and a gearbox; the control module is fixedly arranged in a vehicle-mounted electronic system of the diesel automobile; the control module is used for receiving input signals such as temperature and pressure obtained by the sensing module, automatically controlling the preheating module to preheat intake air, an engine cylinder body and a gearbox of the diesel automobile, and automatically adjusting the preheating time and strength, so that the low-temperature starting performance is effectively improved, and meanwhile, the low-temperature starting performance of the diesel automobile is improved. Waste of fuel oil and electric quantity of a storage battery caused by excessive preheating is avoided, in addition, it is ensured that lubricating oil reaches proper viscosity before starting, mechanical abrasion at the moment of starting is reduced, and safe and rapid starting is achieved.

Description

Technical Field

[0001] The embodiment of the utility model belongs to the technical field of diesel vehicle starting preheating equipment, and more specifically, relates to a low-temperature starting preheating system for a diesel vehicle. Background Art

[0002] Diesel vehicles are widely used and have good economy. However, due to the compression ignition characteristics of diesel engines, it is difficult to fully lubricate the moving parts of the engine in low temperature environments, which is prone to dry wear. At the same time, due to metal contraction, the gaps between parts will decrease, increasing the risk of mutual wear. In addition, the working conditions of the intake system, fuel supply system, etc. will be affected at low temperatures, causing an imbalance in the ratio of the fuel-air mixture, which can cause engine idle vibration or flameout. At the same time, due to incomplete combustion at low temperatures, emissions of harmful substances such as carbon monoxide and hydrocarbons will increase. Secondly, the low temperature of the engine also causes the air temperature and pressure at the end of compression to decrease, thereby increasing the auto-ignition temperature of the diesel and increasing the ignition delay time. In severe cases, it may even fail to ignite and burn, making it difficult to start at low temperatures. In addition, repeated unsuccessful attempts to start the engine not only consume the energy of the battery, but may also cause damage to components such as bearings and crankshafts.

[0003] In order to improve the low-temperature starting of diesel vehicles, the intake air preheating method and the engine preheating method are generally used. Among the existing patents, the Chinese patent with the document number CN106468236A discloses a high-power diesel engine low-temperature automatic fast one-button starting system and starting method, which includes a one-button starting controller, an engine cylinder heating device, an engine intake air preheating device, a fuel heating system and a power supply. The engine cylinder heating device includes an engine fuel boiler preheating system and a thermistor heating plate on the surface and inside of the engine cylinder. The engine intake air preheating device includes a grid heater and a glow plug, both of which heat the air temperature inside the intake pipe at the same time, so that the intake temperature is fully preheated. The fuel heating system includes a fuel tank heating device, a filter heating device, and an oil suction pipe heating device, which are used to heat the fuel in the fuel tank, the filter, the oil suction pipe and the engine cylinder. Each heating device is equipped with a self-checking control circuit, which can independently control the temperature of the fuel and heat it automatically, so that the engine always maintains a good fuel supply state.

[0004] The Chinese patent with document number CN106468236A preheats the engine, engine air intake and fuel, thereby alleviating the problem of difficulty in starting the car at low temperatures. However, in a low temperature environment, the gearbox, especially the automatic gearbox, has thickened oil and poor fluidity, which increases the starting resistance of the diesel car. The problem of unsuccessful starting still exists with the above preheating method alone. Secondly, the low temperature environment causes the charging and discharging capacity of the vehicle battery to drop significantly, and it may not be able to provide sufficient current. When the preheating device or system is unstable, repeated attempts to start the car will further cause the car to start weakly or difficultly. Utility Model Content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a low-temperature starting preheating system for a diesel vehicle, wherein the control module receives input signals such as temperature and pressure obtained by the sensor module, automatically controls the preheating module to preheat the intake, engine cylinder and gearbox of the diesel vehicle, and automatically adjusts the preheating time and intensity, thereby effectively improving the low-temperature starting performance, improving the driving comfort and convenience, reducing the preheating waiting time, and avoiding the waste of fuel and battery power caused by excessive preheating, while also reducing harmful emissions caused by engine overheating. In addition, automatic preheating ensures that the lubricating oil reaches an appropriate viscosity before the engine is started, reduces mechanical wear at the moment of starting, reduces the risk of accidents caused by insufficient lubrication, and achieves safe and rapid starting.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a diesel vehicle low-temperature starting preheating system, including: a sensor module, a preheating module and a control module, wherein:

[0007] The sensor module includes: a first sensor fixedly arranged in the air intake system of the vehicle, a second sensor fixedly arranged outside the vehicle body, a third sensor fixedly arranged in the engine cooling system, and a fourth sensor fixedly arranged on the oil pan and / or the oil pipe of the gearbox;

[0008] The preheating module includes: an intake air preheating component fixedly arranged inside and / or near the intake manifold, a coolant preheating component fixedly arranged in the cooling system of the diesel vehicle, and a gearbox preheating component fixedly arranged near and / or inside the gearbox;

[0009] The control module includes: a controller and a display component; the controller is fixedly arranged in the diesel vehicle onboard electronic system, which at least includes an input circuit, an output circuit, an A / D converter, a microcontroller and a memory; the display component is fixedly arranged inside and / or near the instrument panel.

[0010] Furthermore, the display component includes: a first display light, a second display light, a third display light and a buzzer; the first display light, the second display light, the third display light and the buzzer are respectively connected to the controller for communication.

[0011] Furthermore, the vehicle-mounted battery is connected in series with the preheating module and the control module respectively through wires.

[0012] Furthermore, the intake air preheating component includes: a first relay, a first fuse and a preheater; the first relay is communicatively connected to the control module; the first fuse is fixedly connected to the first relay via a wire; the preheater is fixedly connected to the first fuse via a wire and is fixedly arranged on the intake manifold.

[0013] Furthermore, the fusing current range of the first fuse is 5A to 30A, and the rated voltage range is 16V to 32V.

[0014] Furthermore, the coolant preheating component includes: a second relay, a manual switch and a second fuse; the second relay is communicatively connected to the control module; the manual switch is fixedly connected to the boiler device through a wire; the second fuse is fixedly connected to the second relay and the manual switch through a wire.

[0015] Furthermore, the fusing current range of the second fuse is 5A to 30A, and the rated voltage range is 16V to 32V.

[0016] Furthermore, the coolant preheating component includes a boiler device, which is fixedly installed in the cooling system of the diesel vehicle; the boiler device includes a heating and combustion device, a water pump and a fuel pump; the heating and combustion device is fixedly installed in the cooling system of the diesel vehicle; the water pump is fixedly installed in the cooling system of the diesel vehicle and is connected in series with the water circuit circulation of the engine; the fuel pump is fixedly installed on one side of the heating and combustion device and is fixedly connected to the heating and combustion device and the vehicle fuel tank respectively.

[0017] Furthermore, the gearbox preheating component includes: a third relay, a third fuse and a heating wire; the third relay is communicatively connected to the control module; the third fuse is fixedly connected to the third relay via a wire; the heating wire is fixedly connected to the third fuse via a wire and is fixedly arranged on the gearbox oil pan.

[0018] Furthermore, the fusing current range of the third fuse is 5A to 30A, and the rated voltage range is 16V to 32V.

[0019] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0020] (1) The preheating system of the utility model receives input signals such as temperature and pressure obtained by the sensor module through the control module, automatically controls the preheating module to preheat the intake, engine cylinder and gearbox of the diesel vehicle, and automatically adjusts the preheating time and intensity, effectively improving the low-temperature starting performance, improving the driving comfort and convenience, and reducing the preheating waiting time. At the same time, it avoids the waste of fuel and battery power caused by excessive preheating, and also reduces harmful emissions caused by engine overheating. In addition, automatic preheating ensures that the lubricating oil reaches an appropriate viscosity before the engine is started, reduces mechanical wear at the moment of starting, reduces the risk of accidents caused by insufficient lubrication, and achieves safe and rapid starting.

[0021] (2) The preheating system of the utility model collects data such as temperature and pressure through the first sensor, the second sensor, the third sensor and the fourth sensor and transmits them to the control module to adjust the preheating time and intensity, effectively heat the engine, coolant and lubricating oil to a suitable working temperature, improve the starting success rate, reduce wear and increase the life of the engine and transmission, and improve the reliability and economy of the vehicle.

[0022] (3) The preheating system of the utility model starts the boiler device through the second relay and the manual switch, thereby increasing the reliability and flexibility of the coolant preheating component.

[0023] (4) The preheating system of the utility model performs preheating of the vehicle at start-up through the air intake preheating component, the coolant preheating component and the gearbox preheating component, effectively reducing the viscosity of the engine and gearbox components and the working medium, reducing the torque load required for starting, thereby improving the starting ability of the vehicle, avoiding starting difficulties or failures due to low temperatures, and at the same time, improving the lubrication conditions between the engine and transmission system components, reducing the initial wear of the components, and reducing the workload of starting the vehicle, thereby saving the consumption of the battery power;

[0024] (5) The preheating system of the utility model performs gradual preheating through the control module, thereby avoiding thermal stress of metal materials caused by excessive temperature difference, reducing wear of internal parts of the engine cylinder block and gearbox, thereby extending the overhaul cycle, reducing maintenance costs, and effectively extending the service life of vehicle mechanical parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a preheating system according to an embodiment of the utility model.

[0026] In all the drawings, the same reference numerals represent the same technical features, specifically: 1-first sensor, 2-second sensor, 3-third sensor, 4-fourth sensor, 5-first relay, 6-first insurance, 7-preheater, 8-second relay, 9-manual switch, 10-second insurance, 11-boiler device, 11a-heating and combustion device, 11b water pump, 11c-fuel pump, 12-third relay, 13-third insurance, 14-heating wire, 15-controller, 16-first display light, 17-second display light, 18-third display light, 19-buzzer, 20-battery, 21-key. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] like Figure 1 As shown, the embodiment of the utility model provides a low-temperature starting preheating system for a diesel automobile, comprising: a sensing module, a preheating module and a control module; wherein the sensing modules are fixedly arranged inside and / or outside the diesel automobile body respectively; the preheating modules are fixedly arranged near and / or inside the cooling system, intake manifold and gearbox of the diesel automobile respectively; the control module is fixedly arranged in the on-board electronic system of the diesel automobile; the control module receives input signals such as temperature and pressure obtained by the sensing module, automatically controls the preheating module to preheat the intake, engine cylinder and gearbox of the diesel automobile, and automatically adjusts the preheating time and intensity, effectively improves the low-temperature starting performance, improves the driving comfort and convenience, reduces the preheating waiting time, and at the same time, avoids the waste of fuel and battery power caused by excessive preheating, and also reduces the harmful emissions caused by engine overheating. In addition, automatic preheating ensures that the lubricating oil reaches an appropriate viscosity before the engine is started, reduces mechanical wear at the start moment, reduces the risk of accidents caused by insufficient lubrication, and achieves safe and fast starting.

[0029] Specifically, Figure 1 As shown, the sensor modules are fixedly arranged inside and / or outside the diesel vehicle body, respectively, for obtaining signals such as temperature and pressure and transmitting them to the control module, and include: a first sensor 1, a second sensor 2, a third sensor 3 and a fourth sensor 4;

[0030] The first sensor 1 is fixedly arranged in the air intake system of the vehicle, including the air intake duct and / or the air intake filter, and is used to measure the atmospheric pressure of the surrounding environment and transmit the data to the on-board electronic system, including the control module, so as to adjust the fuel supply and air intake of the engine, as well as the preheating time and intensity;

[0031] The second sensor 2 is fixedly arranged outside the vehicle body, including near the front bumper and / or the side mirror, and is an ambient temperature sensor for measuring the temperature of the surrounding environment and transmitting data to the vehicle electronic system, including the control module, to adjust the preheating time and intensity;

[0032] The third sensor 3 is fixedly arranged in the engine cooling system, including the engine water tank and / or the coolant pipe. It is an engine coolant temperature sensor, which is used to measure the temperature of the engine coolant and transmit the data to the on-board electronic system, including the control module, to control the operating temperature and heat dissipation of the engine, as well as the preheating time and intensity.

[0033] The fourth sensor 4 is fixed on the oil pan and / or oil pipe of the gearbox. It is a gearbox oil temperature sensor, which is used to measure the temperature of the gearbox oil and transmit data to the on-board electronic system, including the control module, to help monitor the operating temperature of the gearbox and protect the normal operation of the gearbox, as well as adjust the preheating time and intensity.

[0034] In a low temperature environment, when a diesel vehicle is started, the first sensor 1, the second sensor 2, the third sensor 3 and the fourth sensor 4 collect data such as temperature and pressure and transmit them to the control module to adjust the preheating time and intensity, effectively heat the engine, coolant and lubricating oil to a suitable operating temperature, improve the starting success rate, reduce wear and tear, increase the life of the engine and gearbox, and improve the reliability and economy of the vehicle.

[0035] Specifically, Figure 1 As shown, the preheating module is respectively fixedly arranged near and / or inside the diesel vehicle cooling system, intake manifold and gearbox, and is used to heat the engine, coolant and lubricating oil to a suitable working temperature, and includes: an intake preheating component, a coolant preheating component and a gearbox preheating component:

[0036] The intake air preheating component is fixedly arranged inside and / or near the intake manifold, and is used to heat the intake air flowing through the manifold, and includes: a first relay 5, a first fuse 6 and a preheater 7;

[0037] The first relay 5 is in communication connection with the control module and is used to control the working state of the intake air preheating component;

[0038] The first fuse 6 is fixedly connected to the first relay 5 via a wire, and is used to protect the intake air preheating component;

[0039] The preheater 7 is fixedly arranged on the intake manifold, and is respectively fixedly connected to the first fuse 6 and the battery 20 through wires, and is used to heat the intake air flowing through the manifold;

[0040] The coolant preheating component is fixedly arranged in the cooling system of the diesel vehicle, and is used to heat the coolant and increase the temperature of the engine cylinder, and comprises: a second relay 8, a manual switch 9, a second fuse 10 and a boiler device 11;

[0041] The second relay 8 is in communication with the control module and is used to control the working state of the coolant preheating component;

[0042] The manual switch 9 is fixedly connected to the boiler device 11 through a wire and is used to manually control the working state of the coolant preheating component;

[0043] The second fuse 10 is fixedly connected to the second relay 8 and the manual switch 9 through a wire, and is used to protect the coolant preheating component;

[0044] The boiler device 11 is fixedly installed in the cooling system of the diesel vehicle, and is used to heat the coolant and increase the temperature of the engine cylinder, and includes: a heating combustion device 11a, a water pump 11b and a fuel pump 11c;

[0045] The heating and combustion device 11a is fixedly installed in the cooling system of the diesel vehicle and heats the coolant by burning diesel;

[0046] The water pump 11b is fixedly installed in the cooling system of the diesel vehicle and connected in series with the water circuit of the engine, so as to circulate the coolant in the cooling system;

[0047] The fuel pump 11c is fixedly arranged on one side of the heating and combustion device 11a and is respectively fixedly connected to the heating and combustion device 11a and the vehicle fuel tank, and is used to pump the fuel in the fuel tank to the heating and combustion device 11a;

[0048] Preferably, the boiler device 11 is controlled by the second relay 8 or the manual switch 9. The opening and closing of the second relay 8 is controlled by the control module. The manual switch 9 is manually controlled by the driver and is connected in series with a fuse. The boiler device 11 can be turned on by either the second relay 8 or the manual switch 9. This redundant design increases the reliability and flexibility of the coolant preheating component.

[0049] The gearbox preheating component is fixedly arranged near and / or inside the gearbox, and is used to heat the lubricating oil in the gearbox, and includes: a third relay 12, a third fuse 13 and a heating wire 14;

[0050] The third relay 12 is in communication with the control module and is used to control the working state of the gearbox preheating component;

[0051] The third fuse 13 is fixedly connected to the third relay 12 via a wire, and is used to protect the gearbox preheating component;

[0052] The heating wire 14 is fixedly connected to the third fuse 13 through a wire and is fixedly arranged on the gearbox oil pan, and is used to heat the lubricating oil in the gearbox;

[0053] In a low-temperature environment, when a diesel vehicle is started, the vehicle is preheated by the intake air preheating component, the coolant preheating component and the gearbox preheating component, which effectively reduces the viscosity of the engine and gearbox components and the working medium, and reduces the torque load required for starting, thereby improving the starting ability of the vehicle, avoiding starting difficulties or failures due to low temperatures, and at the same time, improving the lubrication between the engine and transmission system components, reducing the initial wear of the components, and reducing the workload of starting the vehicle, thereby saving the power consumption of the battery 20;

[0054] Preferably, the fusing current range of the first fuse 6, the second fuse 10 and the third fuse 13 is 5A to 30A, and the rated voltage range is 16V to 32V;

[0055] Preferably, the first relay 5, the second relay 8, the manual switch 9 and the third relay 12 are all provided with grounding protection;

[0056] Specifically, Figure 1 As shown, the control module is fixedly arranged in the diesel vehicle onboard electronic system, and is used to receive the input signals such as temperature and pressure obtained by the sensor module, automatically control the preheating module to preheat the intake, engine cylinder and gearbox of the diesel vehicle, and automatically adjust the preheating time and intensity, which includes: a controller 15 and a display component;

[0057] The controller 15 is fixedly installed in the diesel vehicle on-board electronic system, including an on-board ECU or a separate controller, which at least includes an input circuit, an output circuit, an A / D converter, a microcontroller and a memory, and is used to receive input signals such as temperature and pressure obtained by the sensor module, and automatically control the preheating module and the display component;

[0058] The display component is fixedly arranged inside and / or near the instrument panel, and is used to display the working information of the preheating system, and includes: a first display light 16, a second display light 17, a third display light 18 and a buzzer 19;

[0059] The first display light 16 is in communication with the controller 15 and is used to receive signals from the controller 15 and display the working status of the gearbox preheating component;

[0060] The second display light 17 is in communication with the controller 15 and is used to receive signals from the controller 15 and display the working status of the intake air preheating component;

[0061] The third display light 18 is in communication with the controller 15 and is used to receive signals from the controller 15 and display the working status of the coolant preheating component;

[0062] The buzzer 19 is in communication with the controller 15 and is used to receive a signal from the controller 15 and prompt the starter that the engine has the starting conditions;

[0063] Preferably, the vehicle-mounted battery 20 is connected in series with the preheating module and the control module through wires and is fixedly provided with grounding protection, so as to supply power to the above modules and ensure that the vehicle starts normally;

[0064] Preferably, the battery 20 comprises a low-temperature lead-acid battery having a starting current of 600 to 1000A and a rated voltage of 12 to 14V;

[0065] Preferably, the vehicle includes a key 21, and the key 21 includes at least positions such as OFF, ON and START;

[0066] The working principle of this new experimental model is as follows:

[0067] In low temperature conditions, the key 21 is switched from OFF to ON, and the controller 15 calculates the initial comprehensive temperature based on the ambient temperature, the engine coolant temperature, and the transmission oil temperature, and determines that the temperature is lower than the threshold value, and controls the closing of the second relay 8, the boiler device 11 starts to work, and the third display light 18 lights up, heating the coolant and sending the coolant to the engine. When the comprehensive temperature rises to the set value 1, the controller 15 closes the third relay 12, and the heating wire 14 heats the transmission. The first display light 16 lights up, and the comprehensive temperature rises to the set value 2. The controller 15 closes the first relay 5, and the The preheater 7 starts to work, the second display light 17 lights up, the preheater 7 works for a set time, the set time is calculated by the initial comprehensive temperature and the atmospheric pressure, the first display light 16 and the second display light 17 go out, the third relay 12 is disconnected, the buzzer 19 sounds for 5 seconds, prompting that the engine meets the starting conditions, the driver turns the key 21 to the START position, the time after starting reaches the threshold, the first relay 5 is disconnected, the preheater 7 stops working, the engine coolant temperature reaches the set threshold, the second relay 8 is disconnected, the boiler device 11 stops working, and the third display light 18 goes out;

[0068] In an optional embodiment, the working principle of the utility model is as follows: in low temperature conditions, when the key 21 is switched from OFF to ON, the controller 15 calculates the initial comprehensive temperature based on the ambient temperature, the engine coolant temperature, and the transmission oil temperature, and determines that the temperature is lower than the threshold value, the controller 15 does not start the boiler device 11, and directly closes the first relay 5, the preheater 7 works, and the second display light 17 is on. At this time, the driver closes the manual switch 9, the boiler device 11 starts working, the third display light 18 is on, the controller 15 disconnects the first relay 5, the preheater 7 stops working, and the second display light 17 goes out. When the comprehensive temperature reaches the set value 1, the controller 15 closes the third relay 1 2. The heating wire 14 heats the gearbox, the first display light 16 lights up, the comprehensive temperature rises to the set value 2, the controller 15 closes the first relay 5, the preheater 7 starts to work, the second display light 17 lights up, the preheater 7 works for a set time, and the set time is calculated by the initial comprehensive temperature and the atmospheric pressure. The first display light 16 and the second display light 17 go out, the third relay 12 is disconnected, and the buzzer 19 sounds for 5 seconds, prompting that the engine meets the starting conditions. The driver turns the key 21 to the START position, and the time after starting reaches the threshold, the first relay 5 is disconnected, the preheater 7 stops working, the driver disconnects the manual switch 9, the boiler device 11 stops working, and the third display light 18 goes out;

[0069] Preferably, the preheating system is gradually preheated through the control module, avoiding thermal stress of metal materials caused by excessive temperature difference, reducing the wear of internal parts of the engine cylinder and gearbox, thereby extending the overhaul cycle, reducing maintenance costs, and effectively extending the service life of vehicle mechanical parts.

[0070] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0071] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0072] In this patent, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; those skilled in the art will easily understand that the above are only preferred embodiments of the utility model and are not used to limit the utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A diesel vehicle low temperature start preheating system, characterized in that: include: Sensing module, preheating module and control module, wherein: The sensor module comprises: a first sensor (1) fixedly arranged in the air intake system of the vehicle, a second sensor (2) fixedly arranged outside the vehicle body, a third sensor (3) fixedly arranged in the engine cooling system, and a fourth sensor (4) fixedly arranged on the oil pan and / or the oil pipe of the gearbox; The preheating module includes: an intake air preheating component fixedly arranged inside and / or near the intake manifold, a coolant preheating component fixedly arranged in the cooling system of the diesel vehicle, and a gearbox preheating component fixedly arranged near and / or inside the gearbox; The control module comprises: a controller (15) and a display component; the controller (15) is fixedly arranged in an onboard electronic system of a diesel vehicle, and comprises at least an input circuit, an output circuit, an A / D converter, a microcontroller and a memory; the display component is fixedly arranged inside and / or near a dashboard.

2. The preheating system according to claim 1, characterized in that: The display component comprises: a first display light (16), a second display light (17), a third display light (18) and a buzzer (19); the first display light (16), the second display light (17), the third display light (18) and the buzzer (19) are respectively connected to the controller (15) for communication.

3. The preheating system according to claim 1, characterized in that: The vehicle-mounted storage battery (20) is connected in series with the preheating module and the control module respectively through wires.

4. The preheating system according to any one of claims 1 to 3, characterized in that: The intake air preheating component comprises: a first relay (5), a first fuse (6) and a preheater (7); the first relay (5) is communicatively connected to the control module; the first fuse (6) is fixedly connected to the first relay (5) via a wire; the preheater (7) is fixedly connected to the first fuse (6) via a wire and is fixedly arranged on the intake manifold.

5. The preheating system according to claim 4, characterized in that: The first fuse (6) has a fusing current range of 5A to 30A and a rated voltage range of 16V to 32V.

6. The preheating system according to any one of claims 1 to 3, characterized in that: The coolant preheating component comprises: a second relay (8), a manual switch (9) and a second fuse (10); the second relay (8) is communicatively connected to the control module; the manual switch (9) is fixedly connected to the boiler device (11) via a wire; and the second fuse (10) is fixedly connected to the second relay (8) and the manual switch (9) via a wire.

7. The preheating system according to claim 6, characterized in that: The second fuse (10) has a fusing current range of 5A to 30A and a rated voltage range of 16V to 32V.

8. The preheating system according to any one of claims 1 to 3, characterized in that: The coolant preheating component comprises a boiler device (11), and the boiler device (11) is fixedly arranged in the cooling system of the diesel vehicle; the boiler device (11) comprises a heating and combustion device (11a), a water pump (11b) and a fuel pump (11c); the heating and combustion device (11a) is fixedly arranged in the cooling system of the diesel vehicle; the water pump (11b) is fixedly arranged in the cooling system of the diesel vehicle and is connected in series with the water circuit of the engine; the fuel pump (11c) is fixedly arranged on one side of the heating and combustion device (11a) and is respectively fixedly connected to the heating and combustion device (11a) and the vehicle fuel tank.

9. The preheating system according to any one of claims 1 to 3, characterized in that: The gearbox preheating component comprises: a third relay (12), a third fuse (13) and a heating wire (14); the third relay (12) is communicatively connected to the control module; the third fuse (13) is fixedly connected to the third relay (12) via a wire; the heating wire (14) is fixedly connected to the third fuse (13) via a wire and is fixedly arranged on the gearbox oil pan.

10. The preheating system according to claim 9, characterized in that: The third fuse (13) has a fusing current range of 5A to 30A and a rated voltage range of 16V to 32V.

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