Starter cooling device, system and method

Abstract

The present invention provides a starter cooling device, system and method, the device comprises a high-pressure gas source, a high-pressure air solenoid valve, an air inlet of a starter motor and an air outlet of the starter motor; the air outlet end of the high-pressure gas source is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe, the air outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through the air pipe, and the control end of the high-pressure air solenoid valve is connected to a starter relay controlling the starter solenoid valve; the present invention controls the starter relay to be closed, so that the starter solenoid valve is opened and the high-pressure air solenoid valve is also opened, and the gas of the high-pressure gas source is blown into the starter motor through the air pipe, so as to dissipate heat and cool the starter motor, and the heat generated by the starter motor is taken away by the high-pressure gas, so as to achieve a good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a starter cooling device, system and method. Background Art

[0002] The starter can convert electrical energy into mechanical energy, and generates mechanical energy by driving the gears through a DC motor. The gears mesh with the flywheel to drive the engine flywheel to rotate to start the engine. The engine needs external force to rotate before it can move on its own. The process of the engine transitioning from a stationary state to self-operation with the help of external force is called engine starting. During the engine starting process, the motor will generate a lot of heat due to the large driving current. The heat cannot be dissipated quickly only through the outer casing, which will cause damage to the starter.

[0003] At present, water cooling and an external fan are usually used to dissipate heat from the starter to prevent the starter from being overheated, but the heat dissipation effect is not ideal. Therefore, it is urgent to propose a starter heat dissipation device with better heat dissipation effect. Summary of the invention

[0004] In view of this, it is necessary to provide a starter cooling device, system and method to solve the technical problem of unsatisfactory heat dissipation effect of the starter.

[0005] In order to solve the above problems, the present invention provides a starter cooling device, including a high-pressure air source, a high-pressure air solenoid valve, a starter motor air inlet and a starter motor air outlet;

[0006] The outlet end of the high-pressure air source is connected to the inlet end of the high-pressure air solenoid valve through an air pipe, the outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through an air pipe, and the control end of the high-pressure air solenoid valve is connected to the starter relay that controls the starter solenoid valve;

[0007] Among them, when the starter relay is closed, the high-pressure air solenoid valve and the starter solenoid valve are opened at the same time, and the gas of the high-pressure air source is blown into the starter motor from the air inlet of the starter motor through the air pipe, and the gas is discharged into the atmosphere from the air outlet of the starter motor after dissipating heat and cooling the starter motor.

[0008] Optionally, a water removal tank is also included;

[0009] Among them, the dewatering tank is arranged between the high-pressure air source and the high-pressure air solenoid valve, the air inlet end of the dewatering tank is connected to the air outlet end of the high-pressure air source through an air pipe, and the air outlet end of the dewatering tank is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe.

[0010] Optionally, pressure detection equipment is also included;

[0011] Among them, the pressure detection device is arranged in the dewatering tank, and the pressure detection device is electrically connected to the vehicle-mounted ECU, and is used to transmit the gas pressure value in the dewatering tank to the vehicle-mounted ECU, so that the vehicle-mounted ECU starts an alarm when the gas pressure value is lower than a preset pressure value.

[0012] Optionally, it also includes a starter solenoid valve air inlet and a starter solenoid valve air outlet;

[0013] Wherein, the air inlet of the starter solenoid valve is connected to the air outlet of the high-pressure air solenoid valve through an air pipe, and the air outlet of the starter solenoid valve is connected to the atmosphere through a pipeline.

[0014] Optionally, the starter motor air inlet is arranged at the bottom of the starter motor housing, the starter motor air outlet is arranged at the top of the starter motor housing, the starter solenoid valve air inlet is arranged at the bottom of the starter solenoid valve housing, and the starter solenoid valve air outlet is arranged at the top of the starter solenoid valve housing.

[0015] Optionally, the high-pressure gas source is a vehicle-mounted gas source or an external independent gas source.

[0016] Furthermore, the present invention also provides a starter cooling system, which includes a starter cooling device and an on-vehicle ECU;

[0017] Wherein, the on-vehicle ECU is used to control the on-off of the starter relay, and the starter cooling device is the above-mentioned starter cooling device.

[0018] Furthermore, the present invention also provides a starter cooling method, which is applied to the above-mentioned starter cooling system, comprising:

[0019] When receiving the start command from the user, the vehicle-mounted ECU controls the starter relay to energize and close;

[0020] After the starter relay is fully energized, the starter solenoid valve is turned on and the high-pressure air solenoid valve is opened at the same time, so that the starter motor starts to work and the gas in the high-pressure air source is blown into the starter motor and the starter solenoid valve for cooling and heat dissipation;

[0021] When receiving the start stop signal sent by the vehicle, the vehicle-mounted ECU controls the start relay to be de-energized, disconnects the starter solenoid valve and closes the high-pressure air solenoid valve, so that the starter motor stops working and disconnects the high-pressure air source.

[0022] Optionally, when receiving a start command issued by a user, controlling the start relay to be energized and attracted based on the vehicle-mounted ECU includes:

[0023] When receiving the start command from the user, the pressure in the water removal tank is detected to obtain the current gas pressure value;

[0024] When the current gas pressure value is greater than a preset pressure value, generating a start permission signal;

[0025] Based on the start permission signal, the vehicle-mounted ECU is used to control the start relay to be energized and attracted.

[0026] Optionally, upon receiving the start instruction from the user, after detecting the pressure in the water removal tank to obtain the current gas pressure value, the method further includes:

[0027] When the current gas pressure value is less than the preset pressure value, a gas source low pressure alarm signal is generated;

[0028] An alarm is issued to the user through the vehicle-mounted alarm device according to the gas source low pressure alarm signal, prompting the user that the gas pressure of the high-pressure gas source is insufficient.

[0029] The beneficial effects of the present invention are as follows: the starter cooling device provided by the present invention comprises a high-pressure air source, a high-pressure air solenoid valve, an air inlet of a starter motor and an air outlet of the starter motor; the air outlet end of the high-pressure air source is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe, the air outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through an air pipe, and the control end of the high-pressure air solenoid valve is connected to the starter relay controlling the starter solenoid valve; the present invention controls the starter relay to be closed so that the starter solenoid valve is opened and the high-pressure air solenoid valve is also opened at the same time, and the gas of the high-pressure air source is blown into the starter motor through the air pipe to dissipate heat and cool the starter motor, and the heat generated by the starter motor and the starter solenoid valve is taken away by the high-pressure gas, thereby achieving a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic structural diagram of an embodiment of a starter cooling device provided by the present invention;

[0032] Figure 2 A schematic flow chart of an embodiment of a starter cooling method provided by the present invention. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0034] It should be understood that the schematic drawings are not drawn to scale. The flow chart used in the present invention shows the operations implemented according to some embodiments of the present invention. It should be understood that the operations of the flow chart can be implemented out of order, and the steps without logical context can be reversed or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flow chart under the guidance of the content of the present invention, and can also remove one or more operations from the flow chart.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] The embodiments of the present invention provide a starter cooling device, system and method, which are described below respectively.

[0037] Figure 1 A schematic diagram of the structure of an embodiment of a starter cooling device provided by the present invention, as shown in FIG. Figure 1 As shown, the starter cooling device includes a high-pressure air source, a high-pressure air solenoid valve, an air inlet for the starter motor, and an air outlet for the starter motor;

[0038] The outlet end of the high-pressure air source is connected to the inlet end of the high-pressure air solenoid valve through an air pipe, the outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through an air pipe, and the control end of the high-pressure air solenoid valve is connected to the starter relay that controls the starter solenoid valve;

[0039] Among them, when the starter relay is closed, the high-pressure air solenoid valve and the starter solenoid valve are opened at the same time, and the gas from the high-pressure air source is blown into the starter motor from the air inlet of the starter motor through the air pipe, and the gas is discharged into the atmosphere from the air outlet of the starter motor after dissipating the heat and cooling the starter motor.

[0040] It should be noted that, in the embodiment of the present invention, the high-pressure gas source can be a high-pressure gas cylinder of the whole vehicle, or an air compressor of the whole vehicle, or an intercooler of the whole vehicle. The specific selection of the high-pressure gas source can be designed according to the actual needs of the vehicle. After selecting the high-pressure gas source, the high-pressure gas can be led out through a gas pipeline, and the connection between the high-pressure gas and the starter motor air inlet is controlled by a high-pressure air solenoid valve. The starter motor air inlet and the starter motor air outlet are obtained by opening holes in the outer shell of the starter DC motor. Therefore, compared with the whole vehicle, the starter cooling device provided by the present invention only introduces a high-pressure air solenoid valve and a gas pipeline, and the remaining components of the starter cooling device are all existing components of the vehicle. Therefore, the starter cooling device provided by the present invention only occupies a very small space in the vehicle and consumes very little energy, but has a good cooling and heat dissipation effect on the starter DC motor.

[0041] It can be understood that in the embodiment of the present invention, the high-pressure air solenoid valve is a pilot diaphragm type normally closed solenoid valve. When the coil is energized, the pilot valve core is attracted, the pilot hole is opened, the upper chamber of the valve is depressurized, and the piston is pushed by the pressure of the lower chamber medium (high-pressure gas), and the solenoid valve is opened. When the coil is de-energized, the pilot valve core is reset by the spring, the pilot hole is closed, and the upper chamber of the valve is pressurized by the piston throttle hole and the thrust of the reset spring, and the solenoid valve is closed. The coil of the high-pressure air solenoid valve is connected in parallel with the starter solenoid valve, and both are controlled by the starter relay. When the starter relay is attracted, the coils of the high-pressure air solenoid valve and the starter solenoid valve are energized at the same time. After the starter solenoid valve completes the opening action, the starter DC motor is energized and starts working, driving the engine to run and generating a large amount of heat; when the high-pressure air solenoid valve is opened, the high-pressure gas in the high-pressure gas source is blown into the starter DC motor from the starter motor air inlet through the gas pipeline to dissipate heat for the starter DC motor, and is discharged from the starter motor outlet with heat, thereby realizing rapid heat dissipation of the starter.

[0042] It should be understood that in the embodiment of the present invention, the high-pressure air solenoid valve is connected in parallel with the starter solenoid valve, and the high-pressure air solenoid valve is directly controlled by the starter relay. The starter cooling device provided by the present invention can be started at the same time at the moment the starter is started. There is no need to set additional control circuits and control programs for the starter cooling device, which simplifies the structure of the starter cooling device and facilitates installation and implementation. It also saves costs and has highly targeted cooling and heat dissipation.

[0043] Compared with the prior art, the starter cooling device provided by the present invention comprises a high-pressure air source, a high-pressure air solenoid valve, an air inlet of a starter motor and an air outlet of the starter motor; the air outlet end of the high-pressure air source is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe, the air outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through an air pipe, and the control end of the high-pressure air solenoid valve is connected to a starter relay controlling the starter solenoid valve; the present invention controls the starter relay to be closed so that the starter solenoid valve is opened and the high-pressure air solenoid valve is also opened at the same time, and the gas of the high-pressure air source is blown into the starter motor through the air pipe to dissipate heat and cool the starter motor, and the heat generated by the starter motor and the starter solenoid valve is taken away by the high-pressure gas, which has a good heat dissipation effect and solves the technical problem of unsatisfactory heat dissipation effect of the starter.

[0044] In some embodiments of the present invention, a water removal tank is further included;

[0045] Among them, the dewatering tank is arranged between the high-pressure air source and the high-pressure air solenoid valve, the air inlet end of the dewatering tank is connected to the air outlet end of the high-pressure air source through an air pipe, and the air outlet end of the dewatering tank is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe.

[0046] It should be noted that, in the embodiment of the present invention, the high-pressure gas output by the high-pressure gas source enters the purifier from the air inlet of the dewatering tank. When passing through the high-efficiency filter layer of the dewatering tank, the water, dust and oil in the high-pressure gas are blocked and retained and accumulated at the bottom of the dewatering tank through the interception, inertia, diffusion and adsorption effects of the high-efficiency filter layer. The high-pressure gas after dewatering is discharged from the exhaust hole of the dewatering tank to the gas pipeline, and then transported to the high-pressure air solenoid valve. The dewatering tank is equipped with a pressure gauge and a safety valve. When the internal pressure value of the dewatering tank is too large, the safety valve will automatically open for exhaust to ensure the safe use of the dewatering tank. At the same time, the water and other impurities accumulated in the dewatering tank need to be discharged regularly.

[0047] It can be understood that in the embodiment of the present invention, the water and impurities in the high-pressure gas are filtered out by the water removal tank to prevent the water and impurities from entering the starter DC motor or the starting solenoid valve, causing problems such as short circuit of the starter DC motor or the starting solenoid valve, rust of internal components, and emulsification of internal lubricating oil.

[0048] In some embodiments of the present invention, a pressure detection device is also included;

[0049] Among them, the pressure detection device is arranged in the dewatering tank, and the pressure detection device is electrically connected to the vehicle-mounted ECU, and is used to transmit the gas pressure value in the dewatering tank to the vehicle-mounted ECU, so that the vehicle-mounted ECU starts an alarm when the gas pressure value is lower than a preset pressure value.

[0050] It should be noted that, in the embodiment of the present invention, the pressure detection device can be a pressure gauge provided by the dewatering tank, or a pressure sensor can be reinstalled at the dewatering tank or the air outlet of the high-pressure gas source, or the air inlet of the high-pressure air solenoid valve, and then the pressure data detected by the pressure gauge or the pressure sensor is transmitted to the vehicle-mounted ECU in the form of an electrical signal. The vehicle-mounted ECU determines whether the high-pressure gas output by the high-pressure gas source is sufficient based on the pressure data. If the pressure value is low, it means that the high-pressure gas output by the high-pressure gas source is insufficient to dissipate the heat of the starter DC motor and the starter solenoid valve. If the starter is operated at this time, the starter may malfunction due to heat. Therefore, the vehicle-mounted ECU issues a starting alarm when the gas pressure value in the pressure data is lower than the preset pressure value, prompting the user that it is not appropriate to start at this time. When the problem of low pressure of the high-pressure gas source cannot be solved and the user must start the vehicle, the user can issue a forced start command through the vehicle-mounted ECU to control the start relay to be attracted to start the vehicle, but the number of forced starts should not be too many to avoid damage to the starter.

[0051] In some embodiments of the present invention, the device further includes a starter solenoid valve air inlet and a starter solenoid valve air outlet;

[0052] Among them, the air inlet of the starter solenoid valve is connected to the air outlet of the high-pressure air solenoid valve through an air pipe, and the air outlet of the engine solenoid valve is connected to the atmosphere through a pipeline.

[0053] It can be understood that in the embodiment of the present invention, when the starter relay is energized, the coils of the high-pressure air solenoid valve and the starter solenoid valve are energized at the same time, and the coils of the high-pressure air solenoid valve and the starter solenoid valve start to move at the same time. During this process, a large current will flow through the coil of the starter solenoid valve, generating a large amount of heat. After the starter solenoid valve completes the opening action, the starter DC motor is energized and starts working, driving the engine to run, which also generates a large amount of heat; when the high-pressure air solenoid valve is opened, the high-pressure gas in the high-pressure gas source is divided into two paths through the gas pipeline, one path is blown into the starter solenoid valve from the air inlet of the starter solenoid valve to dissipate the heat for the starter solenoid valve, and is discharged from the air outlet of the starter solenoid valve with the heat, and the other path is blown into the starter DC motor from the air inlet of the starter motor to dissipate the heat for the starter DC motor, and is discharged from the air outlet of the starter motor with the heat, thereby realizing rapid heat dissipation of the starter.

[0054] In some embodiments of the present invention, the starter motor air inlet is set at the bottom of the starter motor housing, the starter motor air outlet is set at the top of the starter motor housing, the starter solenoid valve air inlet is set at the bottom of the starter solenoid valve housing, and the starter solenoid valve air outlet is set at the top of the starter solenoid valve housing.

[0055] It should be noted that, in the embodiment of the present invention, the heat is taken away by blowing high-pressure gas, and the air inlet and outlet of the high-pressure gas are realized by respectively drilling holes in the outer shells of the starter motor and the starter solenoid valve. In the specific implementation, a hole is punched at the bottom of the outer shell of the starter motor as the air inlet of the starter motor, a hole is punched at the top of the outer shell of the starter motor as the air outlet of the starter motor, a hole is punched at the bottom of the outer shell of the starter solenoid valve as the air inlet of the starter solenoid valve, and a hole is punched at the top of the outer shell of the starter solenoid valve as the air outlet of the starter solenoid valve; according to the specific needs of heat dissipation, multiple holes can be punched in the outer shell of the starter motor and / or the outer shell of the starter solenoid valve to form multiple air inlets and multiple air outlets; and the air outlet of the starter motor and the air outlet of the starter solenoid valve are both connected to a gas pipeline, through which the high-pressure gas carrying heat can be discharged to the atmosphere, and the discharge pipe mouth of the gas pipeline of the air outlet faces the rear end of the engine, which can prevent water and impurities from entering the starter.

[0056] In some embodiments of the present invention, the high-pressure gas source is a vehicle-mounted gas source or an external independent gas source.

[0057] It can be understood that in the embodiment of the present invention, the high-pressure gas source can be a high-pressure gas source that comes with the whole vehicle, such as a high-pressure gas cylinder of the whole vehicle, intercooler gas or air compressor rear gas. The specific selection is based on the actual situation of the vehicle. When the gas of the intercooler of the whole vehicle can be drawn out, the heat dissipation effect of using low-temperature intercooler gas will be better, and the gas pressure in the air compressor and the high-pressure gas cylinder will be larger. It can be designed according to the heat dissipation requirements of the starter motor and the gas source of the whole vehicle.

[0058] It is understandable that in the embodiment of the present invention, the entire vehicle may not have a high-pressure air source or the built-in high-pressure air source cannot be externally referenced. Therefore, an independent high-pressure gas cylinder or other external independent air source can be added as a high-pressure air source to dissipate heat and cool the starter motor and the starter solenoid valve.

[0059] The present invention utilizes the high-pressure gas source of the whole vehicle to open holes in the starter DC motor and the starter solenoid valve, and leads the high-pressure gas in the high-pressure gas source to the starter DC motor and the starter solenoid valve by laying a gas pipeline, and uses the high-pressure gas to cool the starter DC motor and the starter DC motor. A high-pressure air solenoid valve is added, and the high-pressure gas is controlled by the high-pressure air solenoid valve to realize the start and stop control of cooling and heat dissipation. The high-pressure air solenoid valve is connected in parallel with the starter solenoid valve to realize synchronous control of starter cooling and heat dissipation and start and stop of the starter. The present invention also uses a dehydration tank to dehydrate the high-pressure gas output by the high-pressure gas source, so as to prevent the moisture in the high-pressure gas from causing short circuit to the starter motor, rusting of internal parts, emulsification of internal lubricating oil, and other problems.

[0060] Furthermore, an embodiment of the present invention also proposes a starter cooling system, which includes the above-mentioned starter cooling device and a vehicle-mounted ECU, wherein the vehicle-mounted ECU is used to control the on and off of the starter relay. The specific embodiment of the starter cooling system refers to the embodiment of the above-mentioned starter cooling device and will not be repeated here.

[0061] Reference Figure 2 , Figure 2 The present invention provides a flow chart of an embodiment of a starter cooling method; further, the present invention also provides a starter cooling method, which is applied to the above-mentioned starter cooling system, including:

[0062] Step S201: upon receiving a start command from a user, the vehicle-mounted ECU controls the starter relay to be energized and closed;

[0063] Step S202, after the starter relay is fully energized, the starter solenoid valve is turned on and the high-pressure air solenoid valve is opened at the same time, so that the starter motor starts to work and the gas in the high-pressure air source is blown into the starter motor and the starter solenoid valve for cooling and heat dissipation;

[0064] Step S203: When receiving the start stop signal sent by the vehicle, the vehicle-mounted ECU controls the starter relay to cut off the power, disconnects the starter solenoid valve and closes the high-pressure air solenoid valve to stop the starter motor and disconnect the high-pressure air source.

[0065] It should be noted that, in the embodiment of the present invention, the user can send a vehicle start command to the on-board ECU by inserting the key or the vehicle's one-touch start button. At this time, the on-board ECU will energize the starter relay coil. The starter relay is a normally closed relay. After its coil is energized, the two normally open contacts will be attracted, thereby energizing and opening the coil of the starter solenoid valve and the coil of the high-pressure air solenoid valve. The starter DC motor has electrical energy input to start driving the engine. The high-pressure gas that has been dehydrated by the dehydration tank will also be blown into the starter DC motor and the starter solenoid valve respectively, taking away the heat generated by the starter DC motor and the starter solenoid valve. , to cool the starter DC motor and the starter solenoid valve; when the engine speed reaches the preset speed, it means that the engine can run automatically without the starter, and the starter can stop working at this time. Therefore, when the engine speed reaches the preset speed, the vehicle generates a start stop signal. When the on-board ECU receives the start stop signal, it de-energizes the starter relay, so that the two contacts of the starter relay are separated, the starter solenoid valve and the high-pressure air solenoid valve are turned off, and the starter DC motor loses power and stops working. At the same time, the high-pressure gas is blocked by the high-pressure air solenoid valve and cannot be blown into the starter solenoid valve and the starter DC motor for heat dissipation.

[0066] In some embodiments of the present invention, step S201 includes:

[0067] When receiving the start command from the user, the pressure in the water removal tank is detected to obtain the current gas pressure value;

[0068] When the current gas pressure value is greater than the preset pressure value, a start permission signal is generated;

[0069] Based on the start permission signal, the vehicle-mounted ECU controls the start relay to be energized and closed.

[0070] It can be understood that in the embodiment of the present invention, if the high-pressure gas pressure provided by the high-pressure gas source is insufficient, the heat dissipation effect of the starter DC motor and the starter solenoid valve will be unsatisfactory or the heat cannot be taken away, which will cause the starter DC motor or the starter solenoid valve to be damaged due to overtemperature. Therefore, it is necessary to detect the gas pressure of the high-pressure gas source before starting the starter. In a specific implementation, the pressure of the high-pressure gas can be detected by a pressure detection device. The pressure detection device can be a pressure gauge provided by the dewatering tank, or a pressure sensor can be re-installed at the dewatering tank or the air outlet of the high-pressure gas source, or the air inlet of the high-pressure air solenoid valve. The pressure data detected by the pressure gauge or the pressure sensor is transmitted to the on-board ECU in the form of an electrical signal. The on-board ECU determines whether the high-pressure gas output by the high-pressure gas source is sufficient based on the pressure data. If the pressure is insufficient, the on-board ECU If the force value is low, it means that the high-pressure gas output by the high-pressure gas source is not enough to dissipate the heat of the starter DC motor and the starter solenoid valve. If the starter is working at this time, the starter may malfunction due to heat. Therefore, the on-board ECU will issue a starting alarm when the current gas pressure value in the pressure data is lower than the preset pressure value, prompting the user that it is not appropriate to start at this time; when the problem of low pressure of the high-pressure gas source cannot be solved, and the user must start the vehicle, the user can issue a forced start command through the on-board ECU to control the starter relay to close and start the vehicle, but the number of forced starts should not be too many to avoid damage to the starter; if the current gas pressure value in the pressure data is higher than the preset pressure value, a start permission signal is generated, and the on-board ECU is used to control the starter relay to energize and close, so that the starter is energized to start working and cool the starter at the same time.

[0071] In some embodiments of the present invention, after step S201, the method further includes:

[0072] When the current gas pressure value is lower than the preset pressure value, a gas source low pressure alarm signal is generated;

[0073] According to the low-pressure alarm signal of the gas source, an alarm is given to the user through the vehicle-mounted alarm device, prompting the user that the gas pressure of the high-pressure gas source is insufficient.

[0074] It can be understood that, in a specific implementation, the vehicle-mounted ECU can compare the pressure according to the current pressure value uploaded by the pressure gauge or pressure sensor. If the current pressure value is less than the preset pressure value, it means that the high-pressure gas pressure output by the high-pressure gas source is not large enough to serve as the heat dissipation high-pressure gas for the starter DC motor and the starter solenoid valve. There may be a high temperature risk when the starter is started, so a corresponding gas source low-pressure alarm signal is generated. The vehicle-mounted ECU can control the vehicle-mounted alarm device to alarm the user through the gas source low-pressure alarm signal. In a specific implementation, the vehicle-mounted alarm device can be the central control screen of the vehicle. Programming the on-board ECU and the on-board central control screen can enable the on-board ECU to output low-pressure alarm information of the gas source through the on-board central control screen, such as displaying alarm text on the central control screen, or flashing lights to alarm. At the same time, the on-board ECU can also upload the gas pressure value of the high-pressure gas source to the on-board central control screen in real time, and display the high-pressure gas pressure value to the user in real time through the on-board central control screen, so that the user can check the pressure of the high-pressure gas source at any time. When the high-pressure gas output by the high-pressure gas source is insufficient, the high-pressure gas source can be replenished in time to avoid the situation where the high-pressure gas pressure output by the high-pressure gas source is insufficient.

[0075] The starter cooling method provided by the present invention controls the starter relay to be energized and attracted based on the vehicle-mounted ECU when receiving the start command issued by the user, and opens the high-pressure air solenoid valve while turning on the starter solenoid valve after the starter relay is fully attracted, so that the starter motor starts to work and the gas in the high-pressure gas source is blown into the starter motor and the starter solenoid valve for cooling and heat dissipation; when receiving the start stop signal sent by the vehicle, the starter relay is controlled to be de-energized based on the vehicle-mounted ECU, the starter solenoid valve is disconnected and the high-pressure air solenoid valve is closed, so that the starter motor stops working and the high-pressure gas source is disconnected, and then the starter is cooled and dissipated by the high-pressure gas provided by the high-pressure gas source while the starter is working; the present invention also detects the pressure value of the high-pressure gas in the dewatering tank in real time through a pressure sensor or a pressure gauge, and feeds back the current pressure value obtained by the detection to the vehicle-mounted ECU, so that the vehicle-mounted ECU determines whether the high-pressure gas provided by the high-pressure gas source meets the cooling and heat dissipation requirements according to the vehicle-mounted ECU, completes the self-inspection work before cooling and heat dissipation of the starter, and when the high-pressure gas does not meet the cooling and heat dissipation requirements, a low-pressure gas source alarm is issued to the user through the vehicle-mounted central control screen, prompting the user to replenish gas for the high-pressure gas source.

[0076] It should be understood that other specific embodiments of the starter cooling method provided by the present invention may refer to the above-mentioned embodiments of the starter cooling device and the starter cooling system, which will not be described in detail here.

[0077] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A starter cooling device, characterized in that: including a high-pressure air source, a high-pressure air solenoid valve, an air inlet of a starter motor, and an air outlet of a starter motor; The outlet end of the high-pressure air source is connected to the inlet end of the high-pressure air solenoid valve through an air pipe, the outlet end of the high-pressure air solenoid valve is connected to the air inlet of the starter motor through an air pipe, and the control end of the high-pressure air solenoid valve is connected to the starter relay that controls the starter solenoid valve; Among them, when the starter relay is closed, the high-pressure air solenoid valve and the starter solenoid valve are opened at the same time, and the gas of the high-pressure air source is blown into the starter motor from the air inlet of the starter motor through the air pipe, and the gas is discharged into the atmosphere from the air outlet of the starter motor after dissipating heat and cooling the starter motor.

2. The starter cooling device according to claim 1, characterized in that: Also included is a dewatering tank; Among them, the dewatering tank is arranged between the high-pressure air source and the high-pressure air solenoid valve, the air inlet end of the dewatering tank is connected to the air outlet end of the high-pressure air source through an air pipe, and the air outlet end of the dewatering tank is connected to the air inlet end of the high-pressure air solenoid valve through an air pipe.

3. The starter cooling device according to claim 2, characterized in that: Also included are pressure testing equipment; Among them, the pressure detection device is arranged in the dewatering tank, and the pressure detection device is electrically connected to the vehicle-mounted ECU, and is used to transmit the gas pressure value in the dewatering tank to the vehicle-mounted ECU, so that the vehicle-mounted ECU starts an alarm when the gas pressure value is lower than a preset pressure value.

4. The starter cooling device according to claim 1, characterized in that: Also included is a starter solenoid valve air inlet and a starter solenoid valve air outlet; Wherein, the air inlet of the starter solenoid valve is connected to the air outlet of the high-pressure air solenoid valve through an air pipe, and the air outlet of the starter solenoid valve is connected to the atmosphere through a pipeline.

5. The starter cooling device according to claim 1, characterized in that: The starter motor air inlet is arranged at the bottom of the starter motor housing, the starter motor air outlet is arranged at the top of the starter motor housing, the starter solenoid valve air inlet is arranged at the bottom of the starter solenoid valve housing, and the starter solenoid valve air outlet is arranged at the top of the starter solenoid valve housing.

6. The starter cooling device according to claim 1, characterized in that: The high-pressure gas source is a vehicle-mounted gas source or an external independent gas source.

7. A starter cooling system, characterized in that: Including starter cooling device and on-board ECU; Wherein, the on-vehicle ECU is used to control the on and off of the starter relay, and the starter cooling device is the starter cooling device according to any one of claims 1-6.

8. A starter cooling method, applied to the starter cooling system as claimed in claim 7, characterized in that: include: When receiving the start command from the user, the vehicle-mounted ECU controls the starter relay to energize and close; After the starter relay is fully energized, the starter solenoid valve is turned on and the high-pressure air solenoid valve is opened at the same time, so that the starter motor starts to work and the gas in the high-pressure air source is blown into the starter motor and the starter solenoid valve for cooling and heat dissipation; When receiving the start stop signal sent by the vehicle, the vehicle-mounted ECU controls the start relay to be de-energized, disconnects the starter solenoid valve and closes the high-pressure air solenoid valve, so that the starter motor stops working and disconnects the high-pressure air source.

9. The starter cooling method according to claim 8, characterized in that: When receiving the start command issued by the user, controlling the start relay to be energized and attracted based on the vehicle-mounted ECU includes: When receiving the start command from the user, the pressure in the water removal tank is detected to obtain the current gas pressure value; When the current gas pressure value is greater than a preset pressure value, generating a start permission signal; Based on the start permission signal, the vehicle-mounted ECU is used to control the start relay to be energized and attracted.

10. The starter cooling method according to claim 9, characterized in that: When receiving the start command issued by the user, the pressure in the water removal tank is detected to obtain the current gas pressure value, and the method further includes: When the current gas pressure value is less than the preset pressure value, a gas source low pressure alarm signal is generated; An alarm is issued to the user through the vehicle-mounted alarm device according to the gas source low pressure alarm signal, prompting the user that the gas pressure of the high-pressure gas source is insufficient.

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