Engineering truck, auxiliary starting method and device thereof and storage medium

Abstract

The invention discloses an engineering vehicle, an auxiliary starting method and device thereof and a storage medium, and relates to the field of automobile performance adjustment. The method comprises the steps that a driving torque threshold value is set according to the driving torque borne by a driving shaft when the driving shaft is suspended and the driving force borne by a driving wheel when the driving shaft touches the ground; and when the auxiliary starting signal is received, the engine is controlled to generate driving torque and transmit the driving torque to the driving shaft, and when the driving torque borne by the driving shaft is smaller than the driving torque threshold value, the engine is started. According to the method, the driving torque generated by the engine is compared with the driving torque threshold value in a pseudo-starting mode of the engine, then the result that whether the vehicle leaks out when the engine is started in the non-neutral-gear state can be obtained, and if not, the engine is started. Therefore, under the condition that safety is guaranteed, the vehicle can be started in an auxiliary starting mode, then the working efficiency is greatly improved, and the user experience is remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of automobile performance adjustment, and in particular to an engineering vehicle and a secondary starting method, device and storage medium thereof. Background Art

[0002] After the engineering vehicle stops during the power taking process, the auxiliary start button on the frame cannot be used to start the engine. The only way to restart the vehicle is to go to the cab. The operation process is generally as follows:

[0003] 1. The driver goes to the cab to confirm that the gear is in neutral.

[0004] 2. Start the engine;

[0005] 3. Press the clutch pedal to the bottom and wait for 8 to 10 seconds;

[0006] 4. Press the power take-off switch;

[0007] 5. Gradually release the clutch;

[0008] 6. The clutch is fully released and the power output is in progress, and the driver leaves the cab.

[0009] It can be concluded that the above process takes at least 2 to 3 minutes even if operated skillfully, and its operating efficiency is low. Summary of the invention

[0010] In view of the defects existing in the prior art, the technical problem solved by the present invention is: after the engineering vehicle stops during the power taking process, how to start the vehicle through the auxiliary starting method while ensuring safety.

[0011] To achieve the above objectives, in the first aspect, an embodiment of the present application provides a secondary starting method for an engineering vehicle, the method comprising the following steps: setting a driving torque threshold according to the driving torque received by the driving shaft when it rotates in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when a secondary starting signal is received, controlling the engine to generate a driving torque and transmit it to the driving shaft, and starting the engine when the driving torque received by the driving shaft is less than the driving torque threshold.

[0012] In combination with the first aspect, in one embodiment, the range of the driving threshold is: above the driving torque received during normal rotation when the driving shaft is suspended in the air; below the driving force received by the driving wheels when the driving shaft is on the ground and the vehicle is started.

[0013] In combination with the first aspect, in one embodiment, when the auxiliary starting signal is received, the process of controlling the engine to generate driving torque and transmit it to the drive shaft includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0014] In combination with the first aspect, in one embodiment, when the driving torque applied to the drive shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0015] In combination with the first aspect, in one embodiment, after starting the engine, the following steps are also included: when it is monitored that the driving torque applied to the driving shaft is above a driving threshold, the engine is turned off.

[0016] In conjunction with the first aspect, in one implementation, the process of the method includes:

[0017] When receiving the auxiliary start signal and in the neutral position with the power take-off switch closed, the starter controls the crankshaft rotation of the engine to generate a driving torque, and transmits the driving torque to the drive shaft through the transmission system;

[0018] Determine whether the driving torque is above the driving torque threshold, if so, do not start the engine and end, otherwise start the engine;

[0019] During the process of starting the engine in a non-neutral state, the driving torque is monitored in real time, and when the driving torque is detected to be above the driving torque threshold, the engine is shut down.

[0020] In a second aspect, an embodiment of the present application provides a computer-readable storage medium, on which a secondary startup program for an engineering vehicle is stored, wherein when the secondary startup program for the engineering vehicle is executed, the steps of implementing the method provided in the first aspect are specifically:

[0021] The driving torque threshold is set according to the driving torque received by the driving shaft when it is suspended in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when the auxiliary start signal is received, the engine is controlled to generate driving torque and transmit it to the driving shaft. When the driving torque received by the driving shaft is less than the driving torque threshold, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0022] The range of the driving threshold is: above the driving torque received during normal rotation (the standard for normal rotation is the existing technology) when the driving shaft is suspended in the air; below the driving force received by the driving wheels when the driving shaft is on the ground and the vehicle is started.

[0023] When the auxiliary start signal is received, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary start signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0024] When the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0025] After starting the engine, the following steps are also included: when it is monitored that the driving torque on the drive shaft is above the driving threshold, the engine is turned off, thereby avoiding the vehicle from rushing out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0026] In a third aspect, an embodiment of the present application provides a secondary starting device for an engineering vehicle, characterized in that: the device is used to implement the steps of the method provided in the first aspect, specifically:

[0027] The driving torque threshold is set according to the driving torque received by the driving shaft when it is suspended in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when the auxiliary start signal is received, the engine is controlled to generate driving torque and transmit it to the driving shaft. When the driving torque received by the driving shaft is less than the driving torque threshold, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0028] The range of the driving threshold is: above the driving torque received during normal rotation (the standard for normal rotation is the existing technology) when the driving shaft is suspended in the air; below the driving force received by the driving wheels when the driving shaft is on the ground and the vehicle is started.

[0029] When the auxiliary start signal is received, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary start signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0030] When the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0031] After starting the engine, the following steps are also included: when it is monitored that the driving torque on the drive shaft is above the driving threshold, the engine is turned off, thereby avoiding the vehicle from rushing out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0032] In conjunction with the third aspect, in one implementation, the device includes an EECU, a BCM, and a drive shaft torque sensor;

[0033] The drive shaft torque sensor is used to: collect the drive torque;

[0034] The EECU and BCM are used to:

[0035] The BCM compares the driving torque with the driving torque threshold. When the driving torque is above the driving torque threshold, the comparison result is sent to the EECU. If the EECU does not receive the comparison result within a specified time, the engine is started.

[0036] or:

[0037] The BCM compares the driving torque with the driving torque threshold. When the driving torque is less than the driving torque threshold, the comparison result is sent to the EECU. When the EECU receives the comparison result within a specified time, the engine is started.

[0038] or:

[0039] The BCM sends the driving torque to the EECU; the EECU compares the driving torque with the driving torque threshold and starts the engine when the driving torque is less than the driving torque threshold.

[0040] In a fourth aspect, an embodiment of the present application provides an engineering vehicle, which includes the auxiliary starting device for an engineering vehicle provided in the third aspect.

[0041] Compared with the prior art, the advantages of the present invention are:

[0042] The present invention performs a "pseudo-start" on the engine (i.e., only allows the engine to generate driving torque, without actually starting it), and compares the driving torque generated by the engine with the driving torque threshold. The driving torque threshold is set according to the driving torque received by the drive shaft when it rotates in the air, and the driving force received by the drive wheel when the drive shaft touches the ground. It can then be determined whether the vehicle will jump out when the engine is started in a non-neutral state. If not, the engine is started. Therefore, the present invention can start the vehicle by means of a secondary start while ensuring safety, thereby greatly improving work efficiency and significantly improving user experience compared to starting the vehicle in the cab in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0044] Figure 1 A schematic diagram of a vehicle startup process in the prior art;

[0045] Figure 2 A schematic diagram of a vehicle startup process in an embodiment of the present invention;

[0046] Figure 3Schematic diagram of the flow of the secondary startup method in an embodiment of the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.

[0049] First, the research and development process of the present invention is briefly described.

[0050] The inventor has found that the reason why the vehicle can only be restarted in the cab after stopping during the power taking process in the prior art is:

[0051] Whether the electronically controlled engine can start normally is determined by various conditions of the EECU, such as whether the system voltage is appropriate, whether the throttle position is within the starting range, whether the intake air and pressure are normal, etc. The neutral signal is set as one of the necessary conditions for engine starting, which is related to the starting safety and prevents accidents caused by the vehicle jumping forward when the gear is engaged.

[0052] See also Figure 1 As shown, the transmission is in neutral, the low end of the starter relay is grounded, the signal relay contacts of the VECU (vehicle control unit) are connected, and the gear position signal input to the VECU is low, and the engine can be started (assuming that other starting conditions are met). In non-neutral situations, the neutral switch is disconnected, and the low end of the starter relay is suspended (i.e. the relay does not work). At this time, the VECU cannot recognize the neutral signal and the engine cannot be started.

[0053] Therefore, if auxiliary starting is desired when the vehicle is stopped during power take-off, auxiliary starting can be performed if it can be confirmed whether it is safe (i.e., whether the vehicle will run out when not started in neutral).

[0054] On this basis, in order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0055] In a first aspect, an embodiment of the present application provides a secondary starting method for an engineering vehicle, the steps of the method comprising: setting a driving torque threshold value according to the driving torque received by the driving shaft when it rotates in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; upon receiving a secondary starting signal, controlling the engine to generate a driving torque and transmitting it to the driving shaft, and when the driving torque received by the driving shaft is less than the driving torque threshold value, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0056] It can be seen that the present invention compares the driving torque generated by the engine with the driving torque threshold by "pseudo-starting" the engine (i.e., only allowing the engine to generate driving torque without actually starting it). The driving torque threshold is set according to the driving torque received by the drive shaft when it rotates in the air and the driving force received by the drive wheel when the drive shaft touches the ground. It can be concluded whether the vehicle will jump out when the engine is started in a non-neutral state. If not, the engine is started. Therefore, the present invention can start the vehicle by means of auxiliary starting while ensuring safety, thereby greatly improving work efficiency and significantly improving user experience compared to starting the vehicle in the cab in the prior art.

[0057] In one embodiment, the range of the driving threshold in the above method is: above the driving torque received during normal rotation when the drive shaft is suspended in the air (the standard for normal rotation is the existing technology); below the driving force received by the drive wheels when the drive shaft is on the ground and the vehicle is started.

[0058] In one embodiment, when the auxiliary starting signal is received in the above method, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0059] In one embodiment, when the driving torque applied to the driving shaft in the above method is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0060] See also Figure 2 As shown, the specific implementation method of the above embodiment can be: using BCM (Body Control Module) to compare the driving torque (obtained by the driving shaft torque sensor) and the driving torque threshold, and sending the specified result to EECU. For example, if it is sent only when it is above the driving torque threshold, the EECU is set to start the engine if no result is received within the specified time; or if it is sent only when it is less than the driving torque threshold, the EECU is set to start the engine if the result is received within the specified time.

[0061] It can also be: BCM is responsible for transmitting the driving torque, EECU compares the driving torque with the driving torque threshold, and decides whether to start the engine based on the comparison result.

[0062] The driving torque or the above comparison result can be transmitted through a CAN line or a hard line, and the transmission path can be forwarded from the BCM or VECU to the EECU, or directly sent to the EECU.

[0063] Furthermore, after starting the engine, the above method also includes the following steps: when it is monitored that the driving torque applied to the drive shaft is above a driving threshold, the engine is shut down, thereby avoiding the situation where the vehicle rushes out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0064] See below Figure 3 As shown, the method of the present invention is described in time sequence through a specific embodiment.

[0065] S1: The operator presses the auxiliary start button on the frame, and the auxiliary start signal will be transmitted to the EECU and go to S2.

[0066] S2: When the power take-off switch is closed, the EECU determines whether it is in neutral gear. If so, it starts the engine and ends. Otherwise, it goes to S3.

[0067] S3: The starter controls the rotation of the engine crankshaft to generate driving torque, which is then transmitted to the drive shaft through the transmission system, and then goes to S4.

[0068] S4: Determine whether the driving torque is above the driving torque threshold. If so, do not start the engine and end. Otherwise, start the engine and go to S5.

[0069] S5: During the process of starting the engine in a non-neutral state, the driving torque is monitored in real time, and when the driving torque is detected to be above a driving torque threshold, the engine is turned off.

[0070] In a second aspect, an embodiment of the present application further provides a secondary starting device for an engineering vehicle, which is used to implement the method described in the first aspect, and the method is specifically:

[0071] The driving torque threshold is set according to the driving torque received by the driving shaft when it is suspended in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when the auxiliary start signal is received, the engine is controlled to generate driving torque and transmit it to the driving shaft. When the driving torque received by the driving shaft is less than the driving torque threshold, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0072] It can be seen that the present invention compares the driving torque generated by the engine with the driving torque threshold by "pseudo-starting" the engine (i.e., only allowing the engine to generate driving torque without actually starting it). The driving torque threshold is set according to the driving torque received by the drive shaft when it rotates in the air and the driving force received by the drive wheel when the drive shaft touches the ground. It can be concluded whether the vehicle will jump out when the engine is started in a non-neutral state. If not, the engine is started. Therefore, the present invention can start the vehicle by means of auxiliary starting while ensuring safety, thereby greatly improving work efficiency and significantly improving user experience compared to starting the vehicle in the cab in the prior art.

[0073] In one embodiment, the range of the above-mentioned driving threshold is: above the driving torque received during normal rotation when the drive shaft is suspended in the air (the standard for normal rotation is the existing technology); below the driving force received by the driving wheels when the drive shaft is on the ground and the vehicle is started.

[0074] In one embodiment, when the auxiliary starting signal is received, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0075] In one embodiment, when the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0076] Furthermore, after starting the engine, the above method also includes the following steps: when it is monitored that the driving torque applied to the drive shaft is above a driving threshold, the engine is shut down, thereby avoiding the situation where the vehicle rushes out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0077] In one embodiment, see Figure 2 As shown, the device includes EECU, BCM and drive shaft torque sensor.

[0078] The drive shaft torque sensor is used to: collect the drive torque;

[0079] The usage of EECU and BCM can be any of the following 3 ways:

[0080] (1) The BCM is used to compare the driving torque with the driving torque threshold and send the comparison result to the EECU when the driving torque is above the driving torque threshold.

[0081] The EECU is used to start the engine when no comparison result is received within a specified time.

[0082] (2) The BCM is used to compare the driving torque with the driving torque threshold, and when the driving torque is less than the driving torque threshold, send the comparison result to the EECU;

[0083] The EECU is used to start the engine when the comparison result is received within the specified time.

[0084] (3) BCM is used to: send the driving torque to the EECU;

[0085] The EECU is used to compare the driving torque with a driving torque threshold and start the engine when the driving torque is less than the driving torque threshold.

[0086] In a third aspect, an embodiment of the present application further provides an engineering vehicle, which includes the auxiliary starting device mentioned in the third aspect, and the usage of the device is specifically as follows:

[0087] The driving torque threshold is set according to the driving torque received by the driving shaft when it is suspended in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when the auxiliary start signal is received, the engine is controlled to generate driving torque and transmit it to the driving shaft. When the driving torque received by the driving shaft is less than the driving torque threshold, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0088] It can be seen that the present invention compares the driving torque generated by the engine with the driving torque threshold by "pseudo-starting" the engine (i.e., only allowing the engine to generate driving torque without actually starting it). The driving torque threshold is set according to the driving torque received by the drive shaft when it rotates in the air and the driving force received by the drive wheel when the drive shaft touches the ground. It can be concluded whether the vehicle will jump out when the engine is started in a non-neutral state. If not, the engine is started. Therefore, the present invention can start the vehicle by means of auxiliary starting while ensuring safety, thereby greatly improving work efficiency and significantly improving user experience compared to starting the vehicle in the cab in the prior art.

[0089] In one embodiment, the range of the above-mentioned driving threshold is: above the driving torque received during normal rotation when the drive shaft is suspended in the air (the standard for normal rotation is the existing technology); below the driving force received by the driving wheels when the drive shaft is on the ground and the vehicle is started.

[0090] In one embodiment, when the auxiliary starting signal is received, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0091] In one embodiment, when the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0092] Furthermore, after starting the engine, the above method also includes the following steps: when it is monitored that the driving torque applied to the drive shaft is above a driving threshold, the engine is shut down, thereby avoiding the situation where the vehicle rushes out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0093] In a fourth aspect, an embodiment of the present application also provides a computer-readable storage medium.

[0094] The computer-readable storage medium of the present application stores a secondary starting program for an engineering vehicle, wherein when the secondary starting program for an engineering vehicle is executed by a processor, the steps of the secondary starting method for an engineering vehicle described above are implemented, specifically:

[0095] The driving torque threshold is set according to the driving torque received by the driving shaft when it is suspended in the air, and the driving force received by the driving wheel when the driving shaft is on the ground; when the auxiliary start signal is received, the engine is controlled to generate driving torque and transmit it to the driving shaft. When the driving torque received by the driving shaft is less than the driving torque threshold, it means that the torque received by the driving shaft will not cause the vehicle to rush out, and the engine is started at this time.

[0096] It can be seen that the present invention compares the driving torque generated by the engine with the driving torque threshold by "pseudo-starting" the engine (i.e., only allowing the engine to generate driving torque without actually starting it). The driving torque threshold is set according to the driving torque received by the drive shaft when it rotates in the air and the driving force received by the drive wheel when the drive shaft touches the ground. It can be concluded whether the vehicle will jump out when the engine is started in a non-neutral state. If not, the engine is started. Therefore, the present invention can start the vehicle by means of auxiliary starting while ensuring safety, thereby greatly improving work efficiency and significantly improving user experience compared to starting the vehicle in the cab in the prior art.

[0097] In one embodiment, the range of the above-mentioned driving threshold is: above the driving torque received during normal rotation when the drive shaft is suspended in the air (the standard for normal rotation is the existing technology); below the driving force received by the driving wheels when the drive shaft is on the ground and the vehicle is started.

[0098] In one embodiment, when the auxiliary starting signal is received, the process of controlling the engine to generate driving torque and transmitting it to the drive shaft includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled (dragged) to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

[0099] In one embodiment, when the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

[0100] Furthermore, after starting the engine, the above method also includes the following steps: when it is monitored that the driving torque applied to the drive shaft is above a driving threshold, the engine is shut down, thereby avoiding the situation where the vehicle rushes out due to the increase in driving torque when starting with gear, thereby further ensuring vehicle safety.

[0101] The computer-readable storage medium of the fourth aspect can be carried by a corresponding electronic device when in use, and the device may include a processor, a memory, a communication interface, and a communication bus.

[0102] The communication bus may be of any type and is used to interconnect the processor, the memory, and the communication interface.

[0103] The communication interface includes input / output (I / O) interfaces, physical interfaces, and logical interfaces, which are used to interconnect devices within the electronic device, and interfaces used to interconnect the electronic device with other devices (such as other computing devices or user devices). The physical interface can be an Ethernet interface, a fiber optic interface, an ATM interface, etc.; the user device can be a display, a keyboard, etc.

[0104] The memory is the computer-readable storage medium of the fourth aspect, which can specifically be various types of storage media, such as random access memory (RAM), read-only memory (ROM), non-volatile RAM (NVRAM), flash memory, optical storage, hard disk, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), etc.

[0105] The processor may be a general-purpose processor, and the general-purpose processor may call the secondary startup program for the engineering vehicle stored in the memory, and execute the secondary startup method for the engineering vehicle provided in the embodiment of the present application. For example, the general-purpose processor may be a central processing unit (CPU). The method executed when the secondary startup program for the engineering vehicle is called may refer to the various embodiments of the AAAA method of the present application, and will not be repeated here.

[0106] It should be noted that the serial numbers of the above-mentioned embodiments of the present application are only for description and do not represent the advantages or disadvantages of the embodiments.

[0107] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0108] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit "first", "second" and "third" to different types.

[0109] In the description of the embodiments of the present application, "exemplary", "for example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary", "for example" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary", "for example" or "for example" is intended to present related concepts in a specific way.

[0110] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; the “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, “multiple” refers to two or more than two.

[0111] In some processes described in the embodiments of the present application, multiple operations or steps that appear in a specific order are included, but it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of the present application or in parallel, and the sequence number of the operation is only used to distinguish the different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0112] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, disk, CD) as described above, and includes a number of instructions for a terminal device to execute the methods described in each embodiment of the present application.

[0113] The above are only specific implementations of the embodiments of the present invention, but the protection scope of the embodiments of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the embodiments of the present invention, and these modifications or replacements should be included in the protection scope of the embodiments of the present invention. Therefore, the protection scope of the embodiments of the present invention shall be based on the protection scope of the claims.

Claims

1. A secondary starting method for an engineering vehicle, characterized in that: The method includes the following steps: setting a driving torque threshold value according to the driving torque received by the driving shaft when it rotates in the air and the driving force received by the driving wheel when the driving shaft is on the ground; when receiving a secondary start signal, controlling the engine to generate a driving torque and transmitting it to the driving shaft, and starting the engine when the driving torque received by the driving shaft is less than the driving torque threshold value.

2. The auxiliary starting method for an engineering vehicle according to claim 1, characterized in that: The driving threshold value is within the range of: being greater than the driving torque received during normal rotation when the driving shaft is suspended in the air; and being less than the driving force received by the driving wheels when the driving shaft is on the ground and the vehicle is started.

3. The auxiliary starting method for an engineering vehicle according to claim 1, characterized in that: The process of controlling the engine to generate driving torque and transmit it to the drive shaft when the auxiliary starting signal is received includes: after receiving the auxiliary starting signal, the crankshaft of the engine is controlled to rotate by the starter on the engine to generate driving torque, and the driving torque is transmitted to the drive shaft through the transmission system.

4. The auxiliary starting method for an engineering vehicle according to claim 1, characterized in that: When the driving torque applied to the driving shaft is less than the driving torque threshold, the process of starting the engine includes: determining whether the driving torque is above the driving torque threshold, if so, not starting the engine, otherwise starting the engine.

5. The auxiliary starting method for an engineering vehicle according to claim 1, characterized in that: After starting the engine, the method further includes the following steps: when it is detected that the driving torque on the drive shaft is above a driving threshold, the engine is turned off.

6. The auxiliary starting method for an engineering vehicle according to any one of claims 1 to 5, characterized in that: The process of this method includes: When receiving the auxiliary start signal and in the neutral position with the power take-off switch closed, the starter controls the crankshaft rotation of the engine to generate a driving torque, and transmits the driving torque to the drive shaft through the transmission system; Determine whether the driving torque is above the driving torque threshold, if so, do not start the engine and end, otherwise start the engine; During the process of starting the engine in a non-neutral state, the driving torque is monitored in real time, and when the driving torque is detected to be above the driving torque threshold, the engine is shut down.

7. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a secondary starting program for an engineering vehicle, wherein when the secondary starting program for an engineering vehicle is executed, the steps of the secondary starting method for an engineering vehicle as claimed in any one of claims 1 to 6 are implemented.

8. An auxiliary starting device for an engineering vehicle, characterized in that: The device is used to implement the steps of the auxiliary starting method for an engineering vehicle described in any one of claims 1 to 6.

9. The auxiliary starting device for an engineering vehicle according to claim 8, characterized in that: The device includes an EECU, a BCM and a drive shaft torque sensor; The drive shaft torque sensor is used to: collect the drive torque; The EECU and BCM are used to: The BCM compares the driving torque with the driving torque threshold. When the driving torque is above the driving torque threshold, the comparison result is sent to the EECU. If the EECU does not receive the comparison result within a specified time, the engine is started. or: The BCM compares the driving torque with the driving torque threshold. When the driving torque is less than the driving torque threshold, the comparison result is sent to the EECU. When the EECU receives the comparison result within a specified time, the engine is started. or: The BCM sends the driving torque to the EECU; the EECU compares the driving torque with the driving torque threshold and starts the engine when the driving torque is less than the driving torque threshold.

10. An engineering vehicle, characterized in that: The engineering vehicle comprises the auxiliary starting device for an engineering vehicle as claimed in claim 8 or 9.

Images