An engine oil preheating system and vehicle

Abstract

The application discloses a machine oil preheating system and a vehicle. The machine oil preheating system comprises a preheating tank, a heat preservation tank, a radiator, an on-off valve, a first pump, a second pump and a controller. The heat preservation tank is connected with the radiator through a first pipeline, and the on-off valve and the first pump are arranged in a loop corresponding to the first pipeline. The heat preservation tank is connected with the preheating tank through a second pipeline, and the second pump is arranged in a loop corresponding to the second pipeline. The controller is connected with control ends of the on-off valve, the first pump and the second pump. The controller is configured to control on-off of the on-off valve, and control start-stop of the first pump and the second pump. The preheating tank is arranged close to a machine oil tank. The preheating tank, the heat preservation tank and the radiator are used at least for containing cooling liquid.

Description

Technical Field

[0001] The embodiments of the present invention relate to vehicle engineering technology, and more particularly to an oil preheating system and a vehicle. Background Technology

[0002] Against the backdrop of the national dual-carbon strategy, the automotive industry has greatly accelerated the pace of product upgrading and replacement on the road to energy conservation and emission reduction, with hybrid and electric vehicles becoming the focus of automotive product development.

[0003] For hybrid vehicles, further reducing engine fuel consumption has undoubtedly become a primary focus for engine R&D engineers. To reduce overall vehicle fuel consumption, it's necessary to study the possibilities for fuel reduction throughout the entire vehicle's lifespan. Specifically, during engine start-up at low temperatures, more fuel needs to be injected into the cylinders than at normal temperatures to ensure successful ignition and operation. This results in higher fuel consumption during cold starts compared to normal temperature conditions. Therefore, shortening the engine warm-up time after a cold start, allowing the engine to quickly reach normal operating temperature, can further reduce overall vehicle fuel consumption, thereby achieving energy conservation and emission reduction. Summary of the Invention

[0004] This invention provides an oil preheating system and vehicle to achieve the purpose of preheating the oil simply and quickly.

[0005] In a first aspect, embodiments of the present invention provide an oil preheating system, comprising:

[0006] Preheating box, insulation box, radiator, switching valve, first pump, second pump and controller;

[0007] The insulation box is connected to the radiator through a first pipeline, and the switch valve and the first pump are located in the circuit corresponding to the first pipeline.

[0008] The insulation box is connected to the preheating box through a second pipeline, and the second pump is installed in the circuit corresponding to the second pipeline;

[0009] The controller is connected to the control terminals of the switching valve, the first pump, and the second pump, respectively.

[0010] The controller is configured to control the opening and closing of the switching valve, and to control the start and stop of the first pump and the second pump;

[0011] The preheating box is positioned close to the oil tank;

[0012] The preheating box, insulation box, and radiator are at least used to contain coolant.

[0013] Optionally, the insulated box is provided with a first opening and a second opening;

[0014] The first pipeline includes a first pipeline branch and a second pipeline branch;

[0015] The insulation box is connected to the radiator through the first port and the first pipeline branch, and the radiator is also connected to the insulation box through the second pipeline branch and the second port.

[0016] Optionally, the insulated box is provided with a third port and a fourth port;

[0017] The second pipeline includes a third pipeline branch and a fourth pipeline branch;

[0018] The insulation box is connected to the preheating box through the third port and the third pipeline branch, and the preheating box is also connected to the insulation box through the fourth pipeline branch and the fourth port.

[0019] Optionally, the radiator is also connected to the engine via a third pipe;

[0020] The radiator is also used to dissipate heat from the engine using the coolant.

[0021] Optionally, a temperature sensor is also included, which is connected to the controller;

[0022] The temperature sensor is used to measure the temperature of the vehicle engine, and the controller is configured to control the start and stop of the second pump based on the measurement value of the temperature sensor.

[0023] Optionally, the preheating chamber and the oil tank are integrated into one shell, and the internal space of the preheating chamber is independent of the oil tank.

[0024] Optionally, the insulation box is also equipped with a vent valve, which is used to vent air outward when the insulation box is filled with coolant.

[0025] Optionally, the insulation box is also equipped with a level gauge, which is used to measure the level of coolant entering the insulation box.

[0026] Optionally, the wall thickness of the preheating box is at least 3 mm.

[0027] Secondly, embodiments of the present invention also provide a vehicle including any of the oil preheating systems described in the embodiments of the present invention.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes an oil preheating system, which includes a preheating tank, a radiator, and an insulation tank. The coolant in the radiator can be pumped into the insulation tank, which stores coolant at a certain temperature. The coolant in the insulation tank can be pumped into the preheating tank, thereby preheating the oil in the oil pan. The system proposed in this embodiment can preheat the oil, allowing the oil temperature to rise rapidly, thereby increasing the engine warm-up speed, allowing the engine to quickly reach normal operating temperature, shortening the warm-up time, and achieving the effect of reducing fuel consumption. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the oil preheating system in the embodiment;

[0030] Figure 2 This is a schematic diagram of another oil preheating system structure in the embodiment;

[0031] Figure 3 This is a schematic diagram of another oil preheating system structure in the embodiment;

[0032] Figure 4 This is a schematic diagram of another oil preheating system structure in the embodiment;

[0033] Figure 5 This is a schematic diagram of another oil preheating system structure in the embodiment. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] Example 1

[0036] Figure 1 This is a schematic diagram of the oil preheating system in the embodiment, for reference. Figure 1 The engine oil preheating system includes:

[0037] Preheating box 100, insulation box 200, radiator 300, first pump 500, second pump 600 and controller 700;

[0038] The insulation box 200 is connected to the radiator 300 through the first pipe, and the first pump 500 is set in the circuit corresponding to the first pipe;

[0039] The insulation box 200 is connected to the preheating box 100 through a second pipeline, and the second pump 600 is installed in the corresponding circuit of the second pipeline;

[0040] The controller 700 is connected to the control terminals of the first pump 500 and the second pump 600 respectively;

[0041] The controller 700 is configured to control the start and stop of the first pump 500 and the second pump 600.

[0042] In this embodiment, the preheating box 100, the insulation box 200, and the radiator 300 are designed to hold at least the coolant.

[0043] For example, in this embodiment, the function of the radiator 300, that is, the device or component that uses the radiator 300 for heat dissipation, is not limited. For example, the radiator 300 can be configured to dissipate heat for the engine in a vehicle.

[0044] In this embodiment, the heat preservation box 200 is set to store coolant with a certain temperature (at least higher than the ambient temperature) and to keep the stored coolant warm.

[0045] In this embodiment, the preheating box 100 is set close to the oil tank 1, so that when there is coolant at a certain temperature in the preheating box 100, the oil in the oil tank 1 can be heated by the preheating box 100 (through heat transfer).

[0046] For example, in this embodiment, the first pump 500 is configured to input (part of) the coolant in the radiator 300 into the insulation box 200 when it is working, and the second pump 600 is configured to input the coolant in the insulation box 200 into the preheating box 100 when it is working.

[0047] For example, in this embodiment, the controller 700 is configured to control the start and stop of the first pump 500 and the second pump 600, wherein the control strategy configured for the controller 700 is not limited;

[0048] For example, the controller 700 can be configured to control the second pump 600 to work when the vehicle is started for the first time after a long period of inactivity, thereby inputting the coolant in the insulation box 200 into the preheating box 100, and then control the second pump 600 to stop working after a certain period of time.

[0049] After the vehicle has been running for a certain period of time, the first pump 500 is controlled to work, and the coolant in the radiator 300 is input into the insulation box 200. After the first pump 500 has been working for a certain period of time, the first pump 500 is controlled to stop working.

[0050] Alternatively, the controller 700 can be configured to control the second pump 600 to work when the ambient temperature is lower than the set value and the vehicle is started for the first time, and to control the second pump 600 to stop working after working for a certain period of time.

[0051] When the temperature of the coolant in the radiator 300 is higher than the set value, the first pump 500 is controlled to work. After the first pump 500 has been working for a certain period of time, the first pump 500 is controlled to stop working.

[0052] For example, in this embodiment, when the oil temperature in the oil tank 1 reaches the set value, the controller 700 controls the first pump 500 and the second pump 600 to stop working. That is, after the oil temperature reaches the set value, regardless of other conditions (ambient temperature, coolant temperature in the radiator 300, pump working time, etc.), the first pump 500 and the second pump 600 are always in a controlled stop state.

[0053] This embodiment proposes an engine oil preheating system, which includes a preheating chamber, a radiator, and an insulation chamber. Coolant from the radiator can be pumped into the insulation chamber, which stores coolant at a certain temperature. The coolant in the insulation chamber can then be pumped into the preheating chamber, which in turn preheats the engine oil in the oil pan. This system preheats the engine oil, allowing its temperature to rise rapidly, thereby increasing the engine's warm-up speed and enabling it to quickly reach normal operating temperature, shortening warm-up time and reducing fuel consumption.

[0054] Figure 2 This is a schematic diagram of the oil preheating system in the embodiment, for reference. Figure 2 ,exist Figure 1 Based on the scheme shown, in one possible implementation, the oil preheating system further includes a switching valve 400;

[0055] The insulation box 200 is connected to the radiator 300 through the first pipe, and the switch valve 400 and the first pump 500 are set in the corresponding circuit of the first pipe.

[0056] For example, in this solution, when it is necessary to input the coolant in the radiator 300 into the insulation box 200, the switch valve 400 is first opened, then the first pump 500 is started, and when the first pump 500 is stopped, the switch valve 400 is closed.

[0057] Specifically, in this solution, when the control switch valve 400 is opened and the first pump 500 is started, the coolant can circulate between the insulation box 200 and the heat dissipation box 300;

[0058] When the switch valve 400 is closed and the first pump 500 is started, the coolant is input into the insulation tank 200 and can remain in the insulation tank 200. Based on this, when the insulation tank 200 is initially empty and the coolant enters the insulation tank 200 for the first time, the coolant stored in the insulation tank 200 can reach any set value through the control of the switch valve 400.

[0059] In addition, by adding a switch valve 400, the coolant transmission path between the insulation box 200 and the radiator 300 can be effectively shut off, thereby avoiding unnecessary loss of coolant in the radiator 300.

[0060] Figure 3 This is a schematic diagram of another oil preheating system structure in the embodiments, for reference. Figure 3 ,exist Figure 1 Based on the scheme shown, the insulated box 200 is provided with a first port and a second port, and the first pipeline includes a first pipeline branch and a second pipeline branch;

[0061] The insulated box 200 is connected to the radiator 300 through the first port and the first pipeline branch. The radiator 300 is also connected to the insulated box 200 through the second pipeline branch and the second port.

[0062] For example, in this solution, the location of the first pump 500 is not limited; it can be installed on the first pipeline branch or the second pipeline branch.

[0063] For example, in this solution, the insulation box 200 and the radiator 300 are set in a coolant circuit through the first pipeline branch and the second pipeline branch, which can simplify the pipeline design in the oil preheating system and avoid setting too many openings in the insulation box 200 and / or the radiator 300 and corresponding redundant pipeline configurations.

[0064] Figure 3 This is a schematic diagram of another oil preheating system structure in the embodiments, for reference. Figure 3 ,exist Figure 1 Based on the scheme shown, the insulated box 200 is equipped with a third port and a fourth port, and the second pipeline includes a branch of the third pipeline and a branch of the fourth pipeline.

[0065] The insulation box 200 is connected to the preheating box 100 through the third port and the third pipeline branch. The preheating box 100 is also connected to the insulation box 200 through the fourth pipeline branch and the fourth port.

[0066] For example, in this solution, the location of the second pump 600 is not limited; it can be installed on the third or fourth pipeline.

[0067] For example, in this solution, the insulation box 200 and the preheating box 100 are set in a coolant circuit through the third and fourth pipeline branches. When the second pump 600 is working, the coolant can circulate between the insulation box 200 and the preheating box 100, thereby improving the preheating effect of the preheating box 100 on the oil in the oil tank 1.

[0068] In addition, it can simplify the piping design in the oil preheating system, avoiding the need for too many openings in the insulation box 200 and / or the radiator box 300, as well as redundant piping.

[0069] exist Figure 1 Based on the scheme shown, in one possible implementation, the radiator 300 is also connected to the engine via a third pipe, and the radiator 300 is also used to dissipate heat from the engine via coolant.

[0070] For example, in this solution, the main function of the radiator 300 is set to dissipate heat from the engine. That is, when the first pump 500 and the second pump 600 stop working, the coolant in the radiator 300 only participates in dissipating heat from the engine.

[0071] For example, in this solution, the heat dissipation control process of the radiator 300 on the engine is not limited, and the rest of the prior art is the same, and the specific details will not be described in detail.

[0072] Figure 4 This is a schematic diagram of another oil preheating system structure in the embodiments, for reference. Figure 4 ,exist Figure 2 Based on the scheme shown, the insulation box 200 is also equipped with an air release valve 201, which is used to release air when the insulation box 200 enters the coolant.

[0073] For example, in this solution, when the insulation box 200 is initially empty and the coolant enters the insulation box 200 for the first time, the switch valve 400 is disconnected, and the first pump 500 is started. Based on this, when the coolant enters the insulation box 200, air can be discharged outward through the vent valve 201, thereby ensuring the pressure inside the insulation box 200 is stable and preventing damage to the insulation box.

[0074] Figure 4 This is a schematic diagram of another oil preheating system structure in the embodiments, for reference. Figure 4 ,exist Figure 2 Based on the scheme shown, the insulation box 200 is also equipped with a level gauge 202, which is used to measure the level of coolant entering the insulation box 200.

[0075] For example, in this solution, the controller 700 is configured to control the switching valve 400 and / or the first pump 500 based on the measured value of the level gauge 202;

[0076] For example, the controller 700 can be configured to control the opening of the switch valve 400 and the start of the first pump 500, and then determine the level of coolant in the insulation tank 200 through the level gauge 202. When the level reaches the specified position, the controller controls the switch valve 400 to open and the first pump 500 to stop.

[0077] exist Figure 1Based on the scheme shown, in one possible implementation, the oil preheating system further includes a temperature sensor connected to the controller 700, the temperature sensor being used to measure the temperature of the vehicle engine.

[0078] For example, in this solution, the controller 700 is configured to control the start and stop of the second pump 600 based on the measured value of the temperature sensor;

[0079] Specifically, the controller 700 is configured to determine the engine temperature through the measurement value of the temperature sensor, and control the second pump 600 to start when the engine temperature is lower than the set temperature.

[0080] exist Figure 1 Based on the scheme shown, in one possible implementation, the preheating box 100 and the oil tank 1 are integrated into the shell, and the internal space of the preheating box 100 is independent of the oil tank 1.

[0081] For example, in this solution, the preheating box 100 and the oil tank 1 are designed as an integrated unit, which can make reasonable use of the vehicle interior space and reduce the installation difficulty of the oil preheating system.

[0082] In addition, the internal space of the preheating box 100 is independent of the oil tank 1, and the coolant in the preheating box 100 will not enter the oil tank 1, thus not affecting the normal operation of the oil tank 1.

[0083] exist Figure 1 Based on the scheme shown, in one possible implementation, the wall thickness of the preheating box 100 is at least 3 mm.

[0084] For example, in this solution, a wall thickness of 3mm can ensure that the preheating box 100 has sufficient strength and good thermal conductivity.

[0085] Figure 5 This is a schematic diagram of another oil preheating system structure in the embodiments, for reference. Figure 5 In one possible implementation, the oil preheating system includes:

[0086] Preheating box 100, insulation box 200, radiator 300, switch valve 400, first pump 500, second pump 600 and controller 700;

[0087] The insulated box 200 is equipped with a first port and a second port, and the first pipeline includes a first pipeline branch and a second pipeline branch;

[0088] The insulated box 200 is connected to the radiator 300 through the first port and the first pipe branch, and the radiator 300 is also connected to the insulated box 200 through the second pipe branch and the second port;

[0089] The insulated box 200 is equipped with a third port and a fourth port, and the second pipeline includes a branch of the third pipeline and a branch of the fourth pipeline;

[0090] The insulation box 200 is connected to the preheating box 100 through the third port and the third pipeline branch. The preheating box 100 is also connected to the insulation box 200 through the fourth pipeline branch and the fourth port.

[0091] The switching valve 400 and the first pump 500 are installed in the circuit corresponding to the first pipeline, and the second pump 600 is installed in the circuit corresponding to the second pipeline.

[0092] The insulated box 200 is also equipped with a vent valve 201 and a level gauge 202, and the radiator 300 is also equipped with a temperature sensor 301.

[0093] The controller 700 is connected to the switching valve 400, the first pump 500, the second pump 600, the level gauge 202, and the temperature sensor 301.

[0094] In this solution, the oil preheating system has two independently controllable channels. One channel consists of a radiator 300 and an insulation box 200. This channel also includes a switching valve 400 and a first pump 500. When this channel needs to work, the switching valve 400 is opened and the first pump 500 starts pumping coolant to achieve the purpose of pumping the coolant in the radiator 300 into the insulation box 200.

[0095] Another passage consists of a preheating box 100 and an insulation box 200. This passage includes a second pump 600, which can pump the coolant in the insulation box 200 into the preheating box 100 when the second pump 600 is working.

[0096] The insulation box 200 is equipped with a vent valve 201 and a liquid level gauge 202. When coolant is pumped into the insulation box 200, excess air in the insulation box 200 can be discharged through the vent valve 201 to ensure stable pressure in the vent valve 201.

[0097] The level gauge 202 can monitor the coolant level in the insulation box 200 in real time, and the controller 700 can stop the first pump 500 when the level in the insulation box 200 reaches a specified height.

[0098] In this solution, the working process of the oil preheating system includes:

[0099] When the engine oil temperature is normal and the engine is running normally, both passages of the engine oil heating system are closed (i.e., the first pump 500 and the second pump 600 are stopped, and the switching valve 400 is disconnected).

[0100] When the vehicle stops running, if (as determined by the temperature sensor) the temperature of the coolant in the radiator 300 is higher than the set temperature, the controller 700 controls the switch valve 400 to open and the first pump 500 to start, pumping the coolant in the radiator 300 into the insulation box 200.

[0101] When the liquid level in the insulation tank 200 reaches the specified height (as determined by the controller 700 through the measurement value of the liquid level gauge 202), the controller 700 controls the first pump 500 to stop, the switching valve 400 to close, and the coolant in the insulation tank 200 enters the insulation state until the next engine start.

[0102] If the engine is started at low temperature, the controller 700 controls the second pump 600 to start, pumping the coolant at a higher temperature in the insulation box 200 into the preheating box 100. After all the coolant in the passage has been circulated, the controller 700 controls the second pump 600 to stop.

[0103] At this time, the cavity of the preheating chamber 100 is already filled with coolant at a high temperature. The coolant can transfer the temperature to the oil in the oil tank 1 through the wall of the preheating chamber 100, thereby achieving the purpose of rapidly heating the oil.

[0104] The proposed oil preheating system has an independent preheating chamber on the oil tank shell. This preheating chamber can hold high-temperature coolant. When high-temperature coolant is injected, the heat of the coolant can be transferred to the oil through the oil tank shell, thereby achieving the effect of rapid oil heating.

[0105] The preheating box is equipped with an inlet and an outlet at both ends, which facilitates the flow of coolant from the outside.

[0106] The oil preheating system proposed in this solution can pump the high-temperature coolant in the radiator into the insulation box for storage, and then pump it into the preheating box at the appropriate time to heat the oil.

[0107] The proposed oil preheating system can control the flow of coolant from the radiator into the insulation box and from the insulation box into the preheating box according to the engine's operating status, so as to achieve rapid warming of the engine oil during cold start.

[0108] The proposed oil preheating system can solve the problem of deteriorating fuel consumption caused by prolonged engine operation at low temperatures. By rapidly increasing the engine oil temperature, it shortens the engine warm-up time, allowing the engine to reach the ideal operating temperature in a very short time, thereby reducing cold start fuel consumption.

[0109] Example 2

[0110] This embodiment proposes a vehicle including any of the oil preheating systems described in Embodiment 1. Its implementation process and beneficial effects are the same as the corresponding content described in Embodiment 1, and will not be repeated here.

[0111] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An oil preheating system, characterized in that, include: Preheating box, insulation box, radiator, switching valve, first pump, second pump and controller; The insulation box is connected to the radiator through a first pipeline, and the switch valve and the first pump are located in the circuit corresponding to the first pipeline. The insulation box is connected to the preheating box through a second pipeline, and the second pump is installed in the circuit corresponding to the second pipeline; The controller is connected to the control terminals of the switching valve, the first pump, and the second pump, respectively. The controller is configured to control the opening and closing of the switching valve, and to control the start and stop of the first pump and the second pump; The preheating box is positioned close to the oil tank; The preheating box, the insulation box, and the radiator are at least used to contain coolant; The insulated box is provided with a first opening and a second opening; The first pipeline includes a first pipeline branch and a second pipeline branch; The insulated box is connected to the radiator through the first port and the first pipeline branch, and the radiator is also connected to the insulated box through the second pipeline branch and the second port; The insulated box is equipped with a third and a fourth opening; The second pipeline includes a third pipeline branch and a fourth pipeline branch; The insulation box is connected to the preheating box through the third port and the third pipeline branch, and the preheating box is also connected to the insulation box through the fourth pipeline branch and the fourth port; The insulation box is also equipped with a vent valve, which is used to vent air outward when the insulation box is filled with coolant.

2. The oil preheating system as described in claim 1, characterized in that, The radiator is also connected to the engine via a third pipe; The radiator is also used to dissipate heat from the engine using the coolant.

3. The oil preheating system as described in claim 1, characterized in that, It also includes a temperature sensor, which is connected to the controller; The temperature sensor is used to measure the temperature of the vehicle engine, and the controller is configured to control the start and stop of the second pump based on the measurement value of the temperature sensor.

4. The oil preheating system as described in claim 1, characterized in that, The preheating chamber and the oil tank are integrated into one shell, and the internal space of the preheating chamber is independent of the oil tank.

5. The oil preheating system as described in claim 1, characterized in that, The insulation box is also equipped with a level gauge, which is used to measure the level of the coolant entering the insulation box.

6. The oil preheating system as described in claim 1, characterized in that, The wall thickness of the preheating box is at least 3 mm.

7. A vehicle, characterized in that, Includes the oil preheating system as described in any one of claims 1 to 6.

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