Heavy vehicle heat dissipation system and method

Abstract

This invention belongs to the field of heavy vehicle technology and discloses a heavy vehicle cooling system and method. The system includes a signal processing device, an engine, and a cooling device. The signal processing device acquires the current usage status of the retarder enable handle of the heavy vehicle. When the usage status is in the start state, it sends a preset signal to the engine. The engine interprets the preset signal to obtain a full-speed start signal, and edits the message according to the full-speed start signal to obtain a first preset message, which is then sent to the cooling device. The cooling device starts according to the first preset message. This invention connects the retarder enable handle and the cooling device through the engine. When the retarder starts, a full-speed start message is edited and sent to the cooling device, enabling the cooling device to work at full speed in a timely manner. This avoids engine overheating due to low working efficiency of the cooling device during engine warm-up, effectively cooling the engine and reducing damage to the engine caused by excessive temperature.

Description

Technical Field

[0001] This invention relates to the field of heavy vehicle technology, and in particular to a heavy vehicle cooling system and method. Background Technology

[0002] The service braking system is a braking system that enables a vehicle to gradually or rapidly decelerate, or even come to a complete stop. A brake is a component that directly generates braking force to stop the vehicle's movement. Service brakes are generally designed for non-continuous braking conditions and are not permitted for prolonged continuous use. As the tonnage of a vehicle increases, its deceleration and braking power also increases accordingly. Large buses operating in cities need to frequently decelerate and brake due to road conditions and frequent stops. Large and heavy passenger and freight vehicles traveling in mountainous areas often encounter long downhill slopes and need to use braking devices to maintain a certain speed. Without special measures, the wheel brakes will be overloaded, leading to heat fade, severe wear, shortened lifespan, and brake pad dust pollution. In severe cases, overheating of the brakes can lead to brake failure or tire blowouts, resulting in serious traffic accidents with fatalities.

[0003] When heavy-duty vehicles use hydraulic retarders, because the coolant lines of the hydraulic retarder are connected to the engine coolant lines, the hydraulic retarder will accelerate the rise in engine water temperature when it is working, and the cooling device will start slowly and cannot effectively cool the engine in time.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a heavy-duty vehicle cooling system that aims to solve the technical problem of excessively high engine temperatures caused by the inability of heavy-duty commercial vehicles to dissipate heat in a timely manner when going downhill.

[0006] To achieve the above objectives, the present invention provides a heavy-duty vehicle cooling system, which includes: a signal processing device, an engine, and a cooling device;

[0007] The signal processing device is used to obtain the current usage status of the heavy vehicle retarder enable handle, and when the usage status is the start state, it sends a preset signal to the engine.

[0008] The engine is configured to decode the preset signal to obtain a full-speed start signal, edit the message according to the full-speed start signal to obtain a first preset message, and send the first preset message to the cooling device.

[0009] The heat dissipation device is used to receive a first preset message and activate the heat dissipation device according to the first preset message.

[0010] Optionally, the signal processing apparatus includes: a signal compilation device;

[0011] The signal compilation device is used to acquire the actual torque of the retarder when the usage state is the start state, convert the actual torque of the retarder into a percentage signal, compile the percentage signal to obtain a compiled signal, and write the compiled signal into a second preset message to obtain a preset signal.

[0012] Optionally, the signal compilation device is further configured to acquire the air conditioner status when the usage state is the start state, and to use the air conditioner status as a preset signal when the air conditioner status is the off state.

[0013] Optionally, the engine is further configured to interpret a preset signal to obtain the actual torque of the retarder, and generate a full-speed start signal for the cooling device when the actual torque of the retarder is not equal to a preset threshold.

[0014] The engine is also used to generate a full-speed start signal for the cooling device when the preset signal indicates that the air conditioner is off.

[0015] Optionally, the engine further includes a message editing module;

[0016] The message editing module is used to convert the full-speed start signal of the heat dissipation device into start data, and write the start data into a preset position of a preset message to obtain a first preset message.

[0017] Optionally, the heat dissipation device further includes a feedback module;

[0018] The feedback module is used to feed back the heat dissipation mode to the engine according to the first preset message after the heat dissipation device is started, and the starting mode includes air conditioning control.

[0019] Furthermore, to achieve the above objectives, the present invention also proposes a method for heat dissipation of heavy-duty vehicles, the method comprising:

[0020] Obtain the current usage status of the heavy vehicle retarder enable handle, and when the usage status is the start state, send a preset signal to the engine;

[0021] The engine interprets the preset signal to obtain a full-speed start signal, edits the message according to the full-speed start signal to obtain a first preset message, and sends the first preset message to the cooling device.

[0022] The heat dissipation device receives a first preset message and activates the heat dissipation device according to the first preset message.

[0023] Optionally, before sending the preset signal to the engine, the method further includes:

[0024] When the usage state is the start state, the actual torque of the retarder is obtained, the actual torque of the retarder is converted into a percentage signal, the percentage signal is compiled to obtain a compiled signal, and the compiled signal is written into a second preset message to obtain a preset signal.

[0025] Optionally, before sending the preset signal to the engine, the method further includes:

[0026] When the usage state is the start state, the actual torque of the retarder is obtained, the actual torque of the retarder is converted into a percentage signal, the percentage signal is compiled to obtain a compiled signal, and the compiled signal is written into a second preset message to obtain a preset signal.

[0027] Optionally, before sending the preset signal to the engine, the method further includes:

[0028] When the usage state is the start state, the air conditioner status is obtained; when the air conditioner is the off state, the pressure switch status is used as a preset signal.

[0029] Optionally, the engine decodes the preset signal to obtain a full-speed start signal, including:

[0030] The actual torque of the retarder is obtained by interpreting the preset signal. When the actual torque of the retarder is not equal to the preset threshold, a full-speed start signal for the heat dissipation device is generated.

[0031] The engine is also used to generate a full-speed start signal for the cooling device when the preset signal indicates that the air conditioner is off.

[0032] This invention connects the retarder enable handle to the cooling device via the engine. When the retarder is activated, a full-speed start message is edited and sent to the cooling device, enabling the cooling device to work at full speed in a timely manner to dissipate heat. This avoids overheating of the engine during engine warm-up due to the low efficiency of the cooling device, which would otherwise cause the engine to overheat while the retarder is working. It can effectively cool the engine and reduce damage to the engine caused by excessive temperature. Attached Figure Description

[0033] Figure 1 This is a structural block diagram of the first embodiment of the heavy-duty vehicle cooling system of the present invention;

[0034] Figure 2 This is a vehicle architecture diagram of the first embodiment of the heavy-duty vehicle cooling system of the present invention;

[0035] Figure 3 This is a structural block diagram of a second embodiment of the heavy-duty vehicle cooling system of the present invention;

[0036] Figure 4This is a vehicle architecture diagram of the second embodiment of the heavy-duty vehicle cooling system of the present invention;

[0037] Figure 5 This is a structural block diagram of the third embodiment of the heavy-duty vehicle cooling system of the present invention;

[0038] Figure 6 This is a vehicle architecture diagram of the third embodiment of the heavy-duty vehicle cooling system of the present invention;

[0039] Figure 7 This is a flowchart illustrating the first embodiment of the heavy-duty vehicle cooling system of the present invention.

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0042] This invention provides a heavy-duty vehicle cooling system, referring to... Figure 1 , Figure 1 This is a structural block diagram of a first embodiment of a heavy-duty vehicle cooling system according to the present invention.

[0043] In this embodiment, the heavy vehicle cooling system includes: a signal processing device 10, an engine 20, and a cooling device 30;

[0044] The signal processing device 10 is used to obtain the current usage status of the heavy vehicle retarder enable handle, and when the usage status is the start state, it sends a preset signal to the engine 20.

[0045] It should be understood that when a vehicle needs to stop or slow down, the brakes or brakes of a heavy vehicle will be overloaded during braking, leading to problems such as heat fade, severe wear, and shortened vehicle life. In more serious cases, it may even cause a tire blowout, posing a risk of a traffic accident.

[0046] It should be noted that the current heavy-duty vehicle can be a heavy-duty vehicle equipped with an AMT automatic transmission, a hydraulic retarder, and an electronically controlled engine. The overall vehicle architecture can be referenced. Figure 2 .

[0047] Understandably, the retarder enable handle can be a handle located around the driver to facilitate the driver's deceleration / braking control according to driving needs. The driver can activate the vehicle's hydraulic retarder braking device by using the retarder enable handle.

[0048] It is easy to understand that the usage state of the retarder enable handle can include the start state and the stop state.

[0049] It should be further explained that the preset signal can be a signal obtained when the retarder enable lever of the current vehicle is detected to be in the activated state. This signal can be generated by the retarder gear controller or by the air conditioning switch.

[0050] The engine 20 is used to decode the preset signal to obtain a full-speed start signal, edit the message according to the full-speed start signal to obtain a first preset message, and send the first preset message to the heat dissipation device 30.

[0051] Understandably, the engine 20 receives signals every moment, but not all signals are valid and usable. After receiving a signal, it needs to be identified. The specific identification method can be to set special marks or special symbols in the preset signal and identify it according to the special marks or special symbols. After identification, the preset signal can be obtained.

[0052] It should be understood that a preset signal can be a string of characters or a string of data. The preset signal may contain useless data. Interpreting the preset signal can be the conversion of specific information in the preset signal. For ease of understanding, it can be a string of characters "hdjshfaaufuigrejbfgeurighaui". Interpreting this string can be understood as, according to the agreed rules, when the 8th character is 'a', it represents information A, and when the 8th character is 'b', it represents information B.

[0053] It should be noted that the full-speed start signal can be understood as a signal that controls the heat dissipation device to start at full speed for heat dissipation.

[0054] It should be further explained that the first preset message can be a message sent by the engine 20 to the cooling device 30, and the content of the message can be a request for the SPN975-EMS_EstimatedFanSpd of EMS_FD to output 100%.

[0055] It should be emphasized that the engine 20 can send the first preset message to the cooling device 30 via broadcast.

[0056] The heat dissipation device 30 is used to receive a first preset message and activate the heat dissipation device 30 according to the first preset message.

[0057] It is understood that the heat dissipation device 30 can be a cooling fan or other heat dissipation device, and the present invention does not limit it.

[0058] It should be understood that after receiving the first preset message broadcast by the engine 20, the cooling fan interprets the preset message and obtains a command to start at full speed. According to the command, the cooling device 30 directly starts to work at full speed to cool down.

[0059] It should be noted that by linking the retarder and the cooling device 30 through the engine 20, the cooling fan is activated immediately when the retarder is started in a heavy vehicle, without the need for additional modifications to the vehicle's wiring harness.

[0060] In this embodiment, the retarder enable handle is connected to the cooling device 30 via the engine 20. When the retarder is started, a full-speed start message is edited and sent to the cooling device 30, enabling the cooling device 30 to work at full speed in a timely manner to dissipate heat. This avoids overheating of the engine 20 during the engine warm-up process due to the low working efficiency of the cooling device 30, which would otherwise cause the engine 20 to overheat while the retarder is working. This effectively cools down the engine 20 and reduces damage to the engine 20 caused by excessive temperature.

[0061] This invention provides a heavy-duty vehicle cooling system, referring to... Figure 3 , Figure 3 This is a structural block diagram of a second embodiment of a heavy-duty vehicle cooling system according to the present invention.

[0062] In this embodiment, the heavy vehicle cooling system includes: a signal processing device 10, an engine 20, and a cooling device 30. The signal processing device 10 includes a signal compilation device 11, and the engine 20 also includes a message editing module 21.

[0063] The signal compilation device 11 is used to acquire the actual torque of the retarder when the usage state is the start state, convert the actual torque of the retarder into a percentage signal, compile the percentage signal to obtain a compiled signal, and write the compiled signal into a second preset message to obtain a preset signal.

[0064] Understandably, the actual torque of the retarder can be the torque requested by the vehicle instrument panel through RCU_TSC1_DR when the vehicle is going downhill and the hydraulic retarder enable handle is engaged, based on the gear position of the retarder enable handle.

[0065] It should be understood that when a heavy vehicle uses a retarder for braking, the retarder responds to the requested torque. Compressed air enters the oil reservoir through the proportional valve, and the oil in the oil reservoir is forced into the retarder through the oil circuit. The oil hinders the rotation of the internal rotor, which can reduce the speed of the drive shaft, thereby reducing the engine speed and the vehicle speed.

[0066] It should be noted that after obtaining the actual torque of the retarder, and with the retarder enable handle already turned on, the percentage signal of the actual retarder torque is decoded. The decoding process can be to divide the percentage signal by 1% / bit to obtain the percentage data, then convert the percentage data into hexadecimal data, and then write the hexadecimal data into the preset position of the RCU_ERC1(0x18F00010) message. Here, RCU_ERC1(0x18F00010) can be the second preset message, and the preset position can be Byte2, bits1 to 8 of RCU_ERC1(0x18F00010).

[0067] As is easily understood, a message is a data unit exchanged and transmitted in a network, that is, a data block that a station sends at one time. A message contains complete data information to be sent, and its length varies greatly, being unlimited and variable. RCU_ERC1 (0x18F00010) is a message that transmits information about the actual torque of the retarder; other messages can also be used to transmit information about the actual torque of the retarder, and this invention does not limit this.

[0068] It should be emphasized that the preset signal here can be the signal obtained by compiling based on the actual torque of the retarder and writing it into RCU_ERC1(0x18F00010).

[0069] The engine 20 is also used to interpret the preset signal to obtain the actual torque of the retarder, and when the actual torque of the retarder is not equal to the preset threshold, it generates a full-speed start signal for the cooling device 30.

[0070] Understandably, the step of interpreting the preset signal is the reverse of the step of generating the preset signal, and the actual torque of the retarder can be obtained by interpreting the preset signal.

[0071] It should be noted that when the engine 20 (ECU) detects that the actual torque of the retarder is a value other than the preset threshold, it generates a control signal to control the cooling device 30 to work at full speed. The preset threshold can be 0%. It is easy to understand that when the actual torque of the retarder obtained after interpretation is not 0%, a signal to start the cooling device 30 at full speed is generated.

[0072] It should be further explained that the actual torque of the retarder can be the torque of the vehicle after the driver activates the retarder enable handle during heavy vehicle driving.

[0073] It should be emphasized that the control signal in the control signal that generates the control signal for the heat dissipation device 30 to operate at full speed can be a request for the SPN975-EMS_EstimatedFanSpd of EMS_FD to output 100%. The SPN975-EMS_EstimatedFanSpd can be understood as the driving device of the heat dissipation device 30. It is easy to understand that the engine 20 and the heat dissipation device 30 have the function of receiving and sending messages.

[0074] The engine 20 also includes a message editing module 21; the message editing module 21 is used to convert the full-speed start signal of the heat dissipation device 30 into start data, and write the start data into a preset position of a preset message to obtain a first preset message.

[0075] It should be noted that the message editing module 21 is used to convert the full-speed start signal of the heat dissipation device 30 into start data, and write the start data into a preset position of a preset message to obtain a first preset message.

[0076] Understandably, the data conversion can be to divide the signal in the full-speed start signal of the heat dissipation device 30 that requires the SPN975-EMS_EstimatedFanSpd of EMS_FD to output 100% by 1% / bit, convert it into a hexadecimal start signal, and then write the start signal into the preset position of the EMS_FD (0x18FEBD00) message.

[0077] It should be noted that the EMS_FD(0x18FEBD00) message is the first preset message, and the preset position can be Byte0, bit0 of EMS_FD(0x18FEBD00).

[0078] In specific implementation, after receiving the EMS_FD (0x18FEBD00) message broadcast by the engine 20, the cooling device 30 decodes the EMS_FD (0x18FEBD00) message to obtain the full-speed start signal, and then controls the cooling device 30 to work at full speed. In this embodiment, the connection relationship of the cooling device 30 is activated by adding a retarder to the engine 20, and the full-speed start signal of the cooling device 30 is broadcast by the engine 20. In the specific implementation process, the implementation principle of this embodiment can be referred to Figure 4 .

[0079] It should be further explained that the diagram includes a retarder enable handle, a retarder gear controller, a retarder, a gateway PCAN, an engine 20, and a cooling device 30 (a cooling fan is used as an example here). PCAN, also known as PCAN-USB or CAN (bus) card, is a CAN to USB interface that can transmit messages on the CAN network to the client via the USB interface, and the CAN messages can be viewed through relevant software.

[0080] The retarder enable handle and the retarder gear controller are connected by hardwire. The retarder, the retarder gear controller and the gateway PCAN are connected to the engine 20 via CAN bus. The engine 20 is then connected to the cooling fan via CAN bus.

[0081] This implementation receives the retarder enable handle opening signal through the retarder gear position controller, converts the actual retarder torque into data, and edits it to obtain the preset signal of the cooling device 30. The preset signal is then sent to the engine 20. The engine 20 interprets the preset signal to obtain the actual retarder torque. If the requirements are met, it generates a full-speed start signal for the cooling device 30 and sends it to the cooling device 30. This allows the cooling device 30 to cool the engine 20 in a timely manner while performing hydraulic retarder braking, thus avoiding the problem of engine 20 overheating due to the low working efficiency of the cooling device 30 during the engine 20 heating process.

[0082] This invention provides a heavy-duty vehicle cooling system, referring to... Figure 5 , Figure 5 This is a structural block diagram of a third embodiment of a heavy-duty vehicle cooling system according to the present invention.

[0083] In this embodiment, the heavy vehicle cooling system includes: a signal processing device 10, an engine 20, and a cooling device 30. The signal processing device 10 includes a signal compilation device 11, the engine 20 includes a message editing module 21, and the cooling device 30 includes a feedback module 31.

[0084] The signal compilation device 11 is also used to obtain the air conditioning status when the current heavy vehicle retarder enable handle is in the start state, and to use the air conditioning status as a preset signal when the air conditioning status is in the off state.

[0085] Understandably, obtaining the air conditioning status can be achieved by adding a hardwire connection between the retarder gear controller and the air conditioning pressure switch. When the current heavy vehicle retarder enable handle is in the activated state, the air conditioning pressure switch can be disconnected, and the air conditioning status can be obtained through this hardwire connection.

[0086] It should be understood that the preset signal in this embodiment is set or generated according to the air conditioner status. For ease of understanding, it can be that signal A is generated when the air conditioner pressure switch is open and signal B is generated when the air conditioner pressure switch is connected. Signals A and B are used as preset signals.

[0087] The engine 20 is also used to generate a full-speed start signal for the cooling device 30 when the preset signal indicates that the air conditioner is off.

[0088] Understandably, when the preset signal is the signal that the air conditioning pressure switch is off, a full-speed start signal for the cooling device 30 is generated. This full-speed start signal for the cooling device 30 can be a request for the SPN975-EMS_EstimatedFanSpd of EMS_FD to output 100%.

[0089] The message editing module 21 is used to convert the full-speed start signal of the heat dissipation device 30 into start data, and write the start data into a preset position of a preset message to obtain a first preset message.

[0090] Understandably, the data conversion can be to divide the signal in the full-speed start signal of the heat dissipation device 30 that requires the SPN975-EMS_EstimatedFanSpd of EMS_FD to output 100% by 1% / bit, convert it into a hexadecimal start signal, and then write the start signal into the preset position of the EMS_FD (0x18FEBD00) message.

[0091] It should be noted that the EMS_FD(0x18FEBD00) message is the first preset message, and the preset position can be Byte0, bit0 of EMS_FD(0x18FEBD00).

[0092] The feedback module 31 is used to feed back the heat dissipation mode to the engine 20 according to the first preset message after the heat dissipation device 30 is started. The starting mode includes air conditioning control.

[0093] Understandably, after receiving the EMS_FD (0x18FEBD00) message broadcast by the engine 20, the cooling device 30 interprets the message to obtain a request for 100% fan speed percentage, and then controls the cooling fan to work at full speed.

[0094] It should be noted that at this time, the SPN977-EMS_FanDriveStatus of EMS_FD outputs the air conditioning control signal 0xB:A / Csystem and feeds this air conditioning control signal back to the engine 20. After the engine 20 obtains this signal, it knows that the operation status of the cooling device 30 is air conditioning pressure switch control.

[0095] In practical implementation, heavy vehicles activate the cooling device 30 by connecting the air conditioning pressure switch and the engine 20. The implementation principle of this embodiment can be referenced during actual vehicle driving. Figure 6 .

[0096] It should be further explained that the diagram includes a retarder enable handle, a retarder gear position controller, a retarder, a gateway PCAN, an engine 20, an air conditioning pressure switch, and a cooling device 30. The retarder enable handle and the retarder gear position controller are connected via hardwire. The retarder, the retarder gear position controller, and the gateway PCAN are all connected to the engine 20 via CAN bus. The retarder gear position controller is connected to the air conditioning pressure switch via hardwire, and the air conditioning pressure switch is also connected to the engine 20 via hardwire. Finally, the engine 20 is connected to the cooling fan via CAN bus.

[0097] This embodiment adds a hard wire connection between the retarder gear position controller and the air conditioning pressure switch. When the retarder enable handle is opened, the air conditioning pressure switch is simultaneously disconnected. The air conditioning pressure switch generates a full-speed start signal for the cooling device 30 and sends it to the cooling device 30. This allows the cooling device 30 to cool the engine 20 in a timely manner while performing hydraulic retarder braking, thus avoiding the problem of engine 20 overheating due to the low working efficiency of the cooling device 30 during the engine warm-up process.

[0098] Reference Figure 7 , Figure 7 This is a flowchart illustrating the first embodiment of the heavy-duty vehicle heat dissipation method of the present invention.

[0099] like Figure 7 As shown, the heavy-duty vehicle heat dissipation method proposed in this embodiment of the invention includes:

[0100] Obtain the current usage status of the heavy vehicle retarder enable handle, and when the usage status is the start state, send a preset signal to the engine 20;

[0101] The engine 20 interprets the preset signal to obtain a full-speed start signal, edits the message according to the full-speed start signal to obtain a first preset message, and sends the first preset message to the heat dissipation device 30.

[0102] The heat dissipation device 30 receives a first preset message and activates the heat dissipation device 30 according to the first preset message.

[0103] In this embodiment, the retarder enable handle is connected to the cooling device 30 via the engine 20. When the retarder is activated, a full-speed start message is edited and sent to the cooling device 30, enabling the cooling device 30 to work at full speed in a timely manner. This avoids overheating of the engine 20 due to the low working efficiency of the cooling device 30 during the engine warm-up process, effectively cooling the engine 20 and reducing damage to the engine 20 caused by excessive temperature.

[0104] In one embodiment, the heavy-duty vehicle heat dissipation method further includes: when the usage state is the start state, acquiring the actual torque of the retarder, converting the actual torque of the retarder into a percentage signal, compiling the percentage signal to obtain a compiled signal, and writing the compiled signal into a second preset message to obtain a preset signal.

[0105] In one embodiment, the heavy vehicle heat dissipation method further includes: when the usage state is the start state, acquiring the air conditioning state; and when the air conditioning is in the off state, using the pressure switch state as a preset signal.

[0106] In one embodiment, the heavy vehicle heat dissipation method further includes: interpreting a preset signal to obtain the actual torque of the retarder, and generating a full-speed start signal for the heat dissipation device 30 when the actual torque of the retarder is not equal to a preset threshold.

[0107] The engine 20 is also used to generate a full-speed start signal for the cooling device 30 when the preset signal is that the air conditioner is off.

[0108] It should be understood that the above are merely illustrative examples and do not constitute any limitation on the technical solutions of the present invention. In specific applications, those skilled in the art can make settings as needed, and the present invention does not impose any restrictions on this.

[0109] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0110] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0111] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0112] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as read-only memory (ROM) / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0113] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A heavy-duty vehicle cooling system, characterized in that, The heavy-duty vehicle cooling system includes: a signal processing device, an engine, and a cooling device; the signal processing device includes: a signal compilation device. The signal processing device is used to obtain the current usage status of the heavy vehicle retarder enable handle. When the usage status is the start state, it controls the air conditioning pressure switch to be disconnected and sends a preset signal to the engine. The signal compilation device is used to acquire the air conditioner status when the usage state is the start state, and to use the air conditioner status as a preset signal when the air conditioner status is the off state. The engine is configured to decode the preset signal to obtain a full-speed start signal, edit the message according to the full-speed start signal to obtain a first preset message, and send the first preset message to the cooling device. The heat dissipation device is used to receive a first preset message and activate the heat dissipation device according to the first preset message.

2. The heavy-duty vehicle cooling system as described in claim 1, characterized in that, The signal compilation device is further configured to, when the usage state is the start state, acquire the actual torque of the retarder, convert the actual torque of the retarder into a percentage signal, compile the percentage signal to obtain a compiled signal, and write the compiled signal into a second preset message to obtain a preset signal.

3. The heavy-duty vehicle cooling system as described in claim 1, characterized in that, The engine is also used to interpret a preset signal to obtain the actual torque of the retarder, and when the actual torque of the retarder is not equal to the preset threshold, it generates a full-speed start signal for the cooling device. The engine is also used to generate a full-speed start signal for the cooling device when the preset signal indicates that the air conditioner is off.

4. The heavy-duty vehicle cooling system as described in claim 3, characterized in that, The engine also includes a message editing module; The message editing module is used to convert the full-speed start signal of the heat dissipation device into start data, and write the start data into a preset position of a preset message to obtain a first preset message.

5. The heavy-duty vehicle cooling system as described in claim 3, characterized in that, The heat dissipation device also includes a feedback module; The feedback module is used to feed back the cooling mode to the engine according to the first preset message after the cooling device is started, and the cooling mode includes air conditioning control.

6. A method for heat dissipation in heavy-duty vehicles, characterized in that, The heavy-duty vehicle heat dissipation method includes: The system obtains the current usage status of the heavy vehicle retarder enable handle. When the usage status is in the start state, it controls the air conditioning pressure switch to be disconnected. The system also obtains the air conditioning status. When the air conditioning is in the off state, the pressure switch status is used as a preset signal and a preset signal is sent to the engine. The engine interprets the preset signal to obtain a full-speed start signal, edits the message according to the full-speed start signal to obtain a first preset message, and sends the first preset message to the cooling device. The heat dissipation device receives a first preset message and activates the heat dissipation device according to the first preset message.

7. The heavy-duty vehicle heat dissipation method as described in claim 6, characterized in that, Before sending the preset signal to the engine, the method further includes: When the usage state is the start state, the actual torque of the retarder is obtained, the actual torque of the retarder is converted into a percentage signal, the percentage signal is compiled to obtain a compiled signal, and the compiled signal is written into a second preset message to obtain a preset signal.

8. The heavy-duty vehicle heat dissipation method as described in claim 6, characterized in that, The engine decodes the preset signal to obtain a full-speed start signal, including: The actual torque of the retarder is obtained by interpreting the preset signal. When the actual torque of the retarder is not equal to the preset threshold, a full-speed start signal for the heat dissipation device is generated. The engine is also used to generate a full-speed start signal for the cooling device when the preset signal indicates that the air conditioner is off.

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