Generator set low-temperature starting method and device, electronic equipment and storage medium

Abstract

The invention provides a low-temperature starting method and device for a generator set, electronic equipment and a storage medium, and the method comprises the steps: judging whether cooling water needs to be heated or not according to the temperature of the cooling water before the generator set is started, and if the cooling water needs to be heated, heating to a preset temperature or stopping heating after a preset duration; whether air inlet preheating needs to be carried out or not is judged according to the cooling water temperature before the generator set is started, if yes, the preheating duration is set according to the cooling water temperature before the generator set is started, and air inlet preheating is stopped after reaching the set preheating duration; starting the generator set, entering safety delay if the starting is successful, and repeating the three steps if the starting is failed; controlling the generator set to enter a starting idling stage, setting the starting idling duration, and skipping the stage in advance if the idling is judged to be stable during the period; and controlling the generator set to enter a high-speed warming-up stage, setting high-speed warming-up duration, and skipping the stage in advance if the high speed is judged to be stable during the period to finish starting of the generator set.

Description

Technical Field

[0001] The present invention relates to the technical field of generator set starting, and in particular to a generator set low-temperature starting method, device, electronic equipment and storage medium. Background Art

[0002] In the current generator industry, most of the startup methods in low temperature environments are manual intervention, that is, adding 60-80 degrees Celsius hot water and 40 degrees Celsius engine oil before starting; then remove the air filter on the intake pipe, use a blowtorch to heat the air intake to achieve the purpose of preheating the intake pipe; stay at the idle stage for 20-30 minutes, and then gradually increase the speed to the rated speed. After reaching the rated speed, increase the warm-up time appropriately, and gradually increase the load after all parameters reach normal. This manual intervention startup method is not only time-consuming and labor-intensive, but also prone to unsuccessful startup due to operational problems. Summary of the invention

[0003] In view of this, an embodiment of the present invention provides a method, device, electronic device and storage medium for low-temperature starting of a generator set, which effectively solves the problems of complex, time-consuming and labor-intensive manual intervention processes and easy starting failures, improves efficiency, reduces costs, and reduces the risk of starting failures.

[0004] According to one aspect of the present invention, a method for starting a generator set at low temperature is provided, which is applied to a generator set controller, and the method comprises:

[0005] Get the cooling water temperature before the generator set starts;

[0006] Determine whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, stop heating after heating to a preset temperature or a preset time;

[0007] Determine whether intake air preheating is required according to the cooling water temperature before the generator set is started; if intake air preheating is required, set the preheating time according to the cooling water temperature before the generator set is started, and stop the intake air preheating after the set preheating time;

[0008] Start the generator set. If the start is successful, it will enter the safety delay. If the start fails, repeat the above three steps;

[0009] Controlling the generator set to enter the start-up idle stage, setting the start-up idle duration according to the cooling water temperature before the generator set is started, and skipping the stage in advance if the idle speed is judged to be stable during the period;

[0010] The generator set is controlled to enter the high-speed warm-up stage, and the high-speed warm-up time is set according to the cooling water temperature before the generator set is started. If it is judged that the high speed is stable during this period, this stage is skipped in advance to complete the start-up of the generator set.

[0011] Further, obtaining the cooling water temperature before the generator set is started includes:

[0012] Power on the ECU to obtain the cooling water temperature before starting the generator set.

[0013] Further, judging whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, heating to a preset temperature or for a preset time and then stopping the heating, comprises:

[0014] When the cooling water temperature before the generator set is started is lower than the first temperature threshold, the heater output port of the generator set controller outputs a high level to control the heater connected to the generator set controller to heat the cooling water. When the water temperature reaches the preset temperature, the remaining time is skipped, the heater output port of the generator set controller returns to a low level, and heating is stopped. If the water temperature still does not reach the preset temperature at the end of the heating time, the heater output port of the generator set controller also returns to a low level and heating is stopped.

[0015] Further, judging whether intake air preheating is required according to the cooling water temperature before the generator set is started, and if intake air preheating is required, setting the preheating time according to the cooling water temperature before the generator set is started, and stopping the intake air preheating after the set preheating time, includes:

[0016] When the cooling water temperature before the generator set is started is lower than the second temperature threshold, the preheating output port of the generator set controller outputs a high level, and the output duration is set according to the cooling water temperature before the generator set is started, and the duration is 10 to 60s. After the intake air preheating reaches the duration, the preheating output port of the generator set controller returns to a low level and stops preheating.

[0017] Furthermore, the generator set is started, if the start-up is successful, then the safety delay is entered, if the start-up fails, then the above three steps are repeated, including:

[0018] Control the starter motor to drag the engine to the speed required for starting. If the required speed is reached, the start is successful and the safety delay is entered; if the start fails, repeat the above three steps. If the start is still not successful after repeating the preset number of times, an alarm is sounded.

[0019] Furthermore, the control of the generator set to enter the start-up idle stage, setting the start-up idle duration according to the cooling water temperature before the generator set is started, and skipping the stage in advance if the idle is judged to be stable during the period, includes:

[0020] Control the engine speed. During the startup idle time, if the engine speed fluctuation is stable within the preset fluctuation range and lasts for a preset time, skip this stage in advance.

[0021] Further, the control of the generator set to enter the high-speed warm-up stage, setting the high-speed warm-up time according to the cooling water temperature before the generator set is started, and skipping the stage in advance if it is judged that the high speed is stable during the period, and completing the start-up of the generator set, including:

[0022] Control the engine speed. During the high-speed warm-up period, if the engine speed fluctuation is stable within the preset fluctuation range and lasts for a preset period of time, skip this stage in advance and complete the start-up of the generator set.

[0023] According to another aspect of the present invention, there is provided a low temperature starting device for a generator set, comprising:

[0024] The water temperature acquisition module is used to obtain the cooling water temperature before the generator set is started;

[0025] A heating module, used to determine whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, heating to a preset temperature or for a preset time before stopping heating;

[0026] An intake air preheating module is used to determine whether intake air preheating is required according to the cooling water temperature before the generator set is started. If intake air preheating is required, the preheating time is set according to the cooling water temperature before the generator set is started, and the intake air preheating stops after the set preheating time is reached;

[0027] A safety delay module is used to start the generator set. If the start-up is successful, the safety delay is entered. If the start-up fails, the water temperature acquisition module, the heating module and the intake air preheating module are controlled to repeat the action;

[0028] The start idle module is used to control the generator set to enter the start idle stage, and the start idle duration is set according to the cooling water temperature before the generator set is started. If the idle speed is judged to be stable during this period, the stage is skipped in advance;

[0029] The high-speed warm-up module is used to control the generator set to enter the high-speed warm-up stage. The high-speed warm-up time is set according to the cooling water temperature before the generator set is started. If it is judged that the high speed is stable during this period, this stage is skipped in advance to complete the start-up of the generator set.

[0030] According to another aspect of the present invention, there is provided an electronic device, comprising:

[0031] Processor; and

[0032] Memory for storing programs,

[0033] Wherein, the program includes instructions, and when the instructions are executed by the processor, the processor executes the above-mentioned low-temperature starting method of the generator set.

[0034] According to another aspect of the present invention, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to execute the above-mentioned low-temperature starting method of a generator set.

[0035] One or more technical solutions provided in the embodiments of the present application can achieve the following technical effects:

[0036] It effectively solves the problems of complex, time-consuming, labor-intensive, and easy startup failures caused by manual intervention, improves efficiency, reduces costs, and reduces the risk of startup failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Further details, features and advantages of the invention are disclosed in the following description of exemplary embodiments in conjunction with the accompanying drawings, in which:

[0038] Figure 1 A flow chart of a method for starting a generator set at low temperature according to an exemplary embodiment of the present invention is shown;

[0039] Figure 2 A flow chart of low temperature start-up of a generator set according to a specific example of the present invention is shown;

[0040] Figure 3 A schematic block diagram of a low-temperature starting device for a generator set according to an exemplary embodiment of the present invention is shown;

[0041] Figure 4 A block diagram of an exemplary electronic device that can be used to implement an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0042] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0043] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. In addition, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0044] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0045] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0046] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0047] Aspects of the present invention are described below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, an exemplary embodiment of the present invention provides a method for starting a generator set at low temperature, which is applied to a generator set controller and includes the following steps:

[0049] S1. Obtain the cooling water temperature before the generator set is started.

[0050] Optionally, an ECU (Electronic Control Unit) is powered on to obtain the cooling water temperature before the generator set is started.

[0051] As a specific example, Figure 2 As shown, the ECU is electrically connected to the battery through a relay, and the battery is used to power the ECU. The generator set controller is electrically connected to the relay. The generator set controller powers on the ECU by controlling the relay to control the battery to power the ECU. After the ECU is powered on, it communicates with the ECU through the CAN interface to obtain the cooling water temperature before the generator set is started, and records the water temperature at this moment.

[0052] S2. Determine whether the cooling water needs to be heated based on the cooling water temperature before the generator set is started. If heating is required, stop heating after heating to a preset temperature or a preset time. If heating is not required, go directly to the next step.

[0053] Optionally, when the cooling water temperature before the generator set is started is lower than a first temperature threshold, the heater output port of the generator set controller outputs a high level to control the heater connected to the generator set controller to heat the cooling water. When the water temperature reaches a preset temperature, the remaining time is skipped, and the heater output port of the generator set controller returns to a low level to stop heating (that is, if the preset temperature is reached before the set heating time, heating is stopped in advance); if the water temperature still does not reach the preset temperature at the end of the heating time, the heater output port of the generator set controller also returns to a low level to stop heating.

[0054] Among them, the first temperature threshold is -10°C, the preset heating temperature is 15°C, and the preset heating time is set in advance by the user according to the performance of the generator set.

[0055] As a specific example, the heater is a water jacket heater, and the heater output port of the generator set controller is connected to the water jacket heater, and the water jacket heater is used to heat cooling water, such as Figure 2 As shown, step S2 is to determine whether the water jacket heater needs to work according to the cooling water temperature before the generator set is started.

[0056] S3. Determine whether intake air preheating is required based on the cooling water temperature before the generator set is started. If intake air preheating is required, set the preheating time based on the cooling water temperature before the generator set is started. Stop the intake air preheating after the set preheating time.

[0057] Optionally, when the cooling water temperature before the generator set is started is lower than the second temperature threshold, the preheating output port of the generator set controller outputs a high level, and the output duration is set according to the cooling water temperature before the generator set is started, and the duration is 10 to 60s. After the intake air preheating reaches the time, the preheating output port of the generator set controller returns to a low level and stops preheating.

[0058] Among them, the second temperature threshold is -10℃, and the preheating time is automatically set by the generator set controller according to the cooling water temperature obtained before the generator set is started. The time is controlled in the range of 10 to 60s. If the cooling water temperature before the generator set is started is low, the preheating time will be correspondingly longer; for example, the cooling water temperature before the generator set is started is slightly lower than the second temperature threshold, such as -11℃ to -15℃, the preset time is set to 10s.

[0059] As a specific example, the preheating output end of the generator set controller is connected to the intake preheater, which is a heating device arranged at the engine air intake. The intake preheater is used to heat the gas entering the engine air intake. Figure 2 As shown, step S3 is actually the controller judging whether the intake air preheater is working by judging whether the cooling water temperature before the generator set is started is lower than the second temperature threshold.

[0060] S4, start the generator set. If the start is successful, enter the safety delay. If the start fails, repeat the above three steps.

[0061] Optionally, the starter motor is controlled to drag the engine to the speed required for starting. The speed at this time is the starting speed. The speed at this time is less than the rated speed, usually 24% of the rated speed. As long as the engine can be started, if the required speed (starting speed) is reached, the start is successful and the safety delay is entered; if the start fails, the above three steps are repeated. If the start is still not successful after repeating the preset number of times, an alarm is sounded. The specific number of repetitions is set in advance by the user.

[0062] S5. Control the generator set to enter the start-up idle stage, and set the start-up idle time according to the cooling water temperature before the generator set is started. If the idle speed is judged to be stable during this period, this stage is skipped in advance.

[0063] Optionally, the engine speed is controlled, and within the startup idle time, if the engine speed fluctuation is stable within a preset fluctuation range and lasts for a preset time, this stage is skipped in advance.

[0064] After the safety delay, the idle start phase begins. The idle speed of the idle start phase is calibrated in advance by the user according to the specifications of the generator set. The idle speed is less than the rated speed but greater than the starting speed, such as 700rpm to 800rpm. The generator set controller automatically determines the time required for the idle start phase based on the cooling water temperature before the generator set is started and the specifications of the generator set, and sets the idle start duration accordingly. Specifically, if the cooling water temperature before the generator set is started is ≥+5℃, the start idle time is set to 30s; if the cooling water temperature before the generator set is in the range of [0℃, 5℃), the start idle time is set to 50s; if the cooling water temperature before the generator set is in the range of [-5℃, 0℃), the start idle time is set to 60s; if the cooling water temperature before the generator set is in the range of [-10℃, -5℃), the start idle time is set to 90s; if the cooling water temperature before the generator set is in the range of [-15℃, -10℃), the start idle time is set to 120s; if the cooling water temperature before the generator set is in the range of [-20℃, -15℃), the start idle time is set to 150s; the lower the temperature, the longer the start idle time.

[0065] Among them, the preset fluctuation range is 0~10rpm, and the preset duration is 10s. That is, in the starting idle stage, if the engine speed fluctuation is no more than 10rpm and can be maintained for 10s, there is no need to run all the starting idle time. The starting idle stage can be ended in advance and enter the next stage.

[0066] S6, control the generator set to enter the high-speed warm-up stage, set the high-speed warm-up time according to the cooling water temperature before the generator set is started, and if it is judged that the high speed is stable during this period, skip this stage in advance to complete the start-up of the generator set.

[0067] Optionally, the engine speed is controlled. During the high-speed warm-up period, if the engine speed fluctuation is stable within a preset fluctuation range and lasts for a preset period of time, this stage is skipped in advance and the start-up of the generator set is completed.

[0068] The speed of the high-speed warm-up stage is calibrated in advance by the user according to the specifications of the generator set, preferably the rated speed, which is greater than the idle speed, such as 1500rpm. The generator set controller can automatically determine the time required for the high-speed warm-up stage according to the cooling water temperature before the generator set is started and the specifications of the generator set, and thus set the high-speed warm-up time. Specifically, if the cooling water temperature before the generator set is started is ≥+5℃, the high-speed warm-up time is set to 40s; if the cooling water temperature before the generator set is started is within the range of [0℃, 5℃), the high-speed warm-up time is set to 50s; if the cooling water temperature before the generator set is started is within the range of [-5℃, 0℃), the high-speed warm-up time is set to 60s; if the cooling water temperature before the generator set is started is within the range of [-10℃, -5℃), the high-speed warm-up time is set to 90s; if the cooling water temperature before the generator set is started is within the range of [-15℃, -10℃), the high-speed warm-up time is set to 120s; if the cooling water temperature before the generator set is started is within the range of [-20℃, -15℃), the high-speed warm-up time is set to 150s; the lower the temperature, the longer the high-speed warm-up time is started.

[0069] Among them, the preset fluctuation range is 0-10rpm, and the preset duration is 10s, that is, in the high-speed warm-up stage, if the engine speed fluctuation is not greater than 10rpm and can be maintained for 10s, it is not necessary to run all the high-speed warm-up time, and the high-speed warm-up stage can be ended in advance, indicating that the generator set has been successfully started and can run steadily. Starting the generator set in step S4 means that the engine can rotate at a lower speed, but cannot rotate stably, and can only run at no load but not under load. After the safety delay, the start-up idle stage and the high-speed warm-up stage, the generator set can run stably and enter the ready-to-load stage and can run under load.

[0070] The low-temperature starting method of the generator set of the present application can realize that the generator set controller automatically controls the generator set starting process in a low-temperature environment, which solves the time-consuming and labor-intensive problems and saves labor costs. At the same time, the rigor of the starting process is improved through automatic control, which is linked together to reduce the risk of starting failure. It also has the advantages of simple logic, high speed, and high reliability, and has the advantages of scientificity, practicality, and strong adaptability.

[0071] The exemplary embodiment of the present invention further provides a low temperature starting device 1100 for a generator set, such as Figure 3 As shown, including:

[0072] The water temperature acquisition module 1101 is used to obtain the cooling water temperature before the generator set is started;

[0073] A heating module 1102 is used to determine whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, heating to a preset temperature or for a preset time and then stopping the heating;

[0074] The intake air preheating module 1103 is used to determine whether intake air preheating is required according to the cooling water temperature before the generator set is started. If intake air preheating is required, the preheating time is set according to the cooling water temperature before the generator set is started, and the intake air preheating stops after the set preheating time.

[0075] The safety delay module 1104 is used to start the generator set. If the start-up is successful, the safety delay is entered. If the start-up fails, the water temperature acquisition module, the heating module and the intake air preheating module are controlled to repeat the action;

[0076] The start idle module 1105 is used to control the generator set to enter the start idle stage, and set the start idle duration according to the cooling water temperature before the generator set is started. If the idle is judged to be stable during this period, the stage is skipped in advance;

[0077] The high-speed warm-up module 1106 is used to control the generator set to enter the high-speed warm-up stage. The high-speed warm-up time is set according to the cooling water temperature before the generator set is started. If it is judged that the high speed is stable during this period, this stage is skipped in advance to complete the start-up of the generator set.

[0078] For the convenience of description, the above devices are described in terms of functions and are divided into various modules. Of course, when implementing the embodiments of the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0079] It should be noted that: the generator controller history record reading device provided in the above embodiment only uses the division of the above functional modules as an example when reading the generator controller history record. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the generator controller history record reading device provided in the above embodiment and the generator set low temperature starting method embodiment belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0080] An exemplary embodiment of the present invention further provides an electronic device, comprising: at least one processor; and a memory connected to the at least one processor in communication. The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the electronic device executes a method for starting a generator set at low temperature according to an embodiment of the present invention.

[0081] An exemplary embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor of a computer, is used to cause the computer to perform a low-temperature starting method for a generator set according to an embodiment of the present invention.

[0082] An exemplary embodiment of the present invention further provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor of a computer, the computer is used to enable the computer to perform a method according to an embodiment of the present invention.

[0083] refer to Figure 4 , a block diagram of an electronic device 800 that can be used as a server or client of the present invention will now be described, which is an example of a hardware device that can be applied to various aspects of the present invention. The electronic device is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0084] like Figure 4 As shown, the electronic device 1200 includes a computing unit 1201, which can perform various appropriate actions and processes according to a computer program stored in a ROM (read-only memory) 1202 or a computer program loaded from a storage unit 1208 to a RAM (random access memory) 1203. In the RAM 1203, various programs and data required for the operation of the electronic device 1200 can also be stored. The computing unit 1201, the ROM 1202, and the RAM 1203 are connected to each other via a bus 1204. An I / O interface (input / output) 1205 is also connected to the bus 1204.

[0085] A plurality of components in the electronic device 1200 are connected to the I / O interface 1205, including: an input unit 1206, an output unit 1207, a storage unit 1208, and a communication unit 1209. The input unit 1206 may be any type of device capable of inputting information to the electronic device 1200, and the input unit 1206 may receive input digital or character information, and generate key signal inputs related to user settings and / or function control of the electronic device. The output unit 1207 may be any type of device capable of presenting information, and may include, but is not limited to, a display, a speaker, a video / audio output terminal, a vibrator, and / or a printer. The storage unit 1204 may include, but is not limited to, a disk, an optical disk. The communication unit 1209 allows the electronic device 1200 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks, and may include, but is not limited to, a modem, a network card, an infrared communication device, a wireless communication transceiver, and / or a chipset, such as a Bluetooth™ device, a WiFi device, a WiMax device, a cellular communication device, and / or the like.

[0086] The computing unit 1201 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 1201 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 1201 performs the various methods and processes described above. For example, in some embodiments, the low temperature starting method of the generator set may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 1208. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 1200 via the ROM 1202 and / or the communication unit 1209. In some embodiments, the computing unit 1201 may be configured to execute the low temperature starting method of the generator set by any other appropriate means (e.g., by means of firmware).

[0087] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0088] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0089] As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and / or device (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0090] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0091] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0092] A computer system may include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship to each other.

Claims

1. A method for starting a generator set at low temperature, characterized in that: Applied to a generator set controller, the method comprises: Get the cooling water temperature before the generator set starts; Determine whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, stop heating after heating to a preset temperature or a preset time; Determine whether intake air preheating is required according to the cooling water temperature before the generator set is started; if intake air preheating is required, set the preheating time according to the cooling water temperature before the generator set is started, and stop the intake air preheating after the set preheating time; Start the generator set. If the start is successful, it will enter the safety delay. If the start fails, repeat the above three steps; Controlling the generator set to enter the start-up idle stage, setting the start-up idle duration according to the cooling water temperature before the generator set is started, and skipping the stage in advance if the idle speed is judged to be stable during the period; The generator set is controlled to enter the high-speed warm-up stage, and the high-speed warm-up time is set according to the cooling water temperature before the generator set is started. If it is judged that the high speed is stable during this period, this stage is skipped in advance to complete the start-up of the generator set.

2. The low temperature starting method of a generator set according to claim 1, characterized in that: The step of obtaining the cooling water temperature before the generator set is started includes: Power on the ECU to obtain the cooling water temperature before starting the generator set.

3. The low temperature starting method of a generator set according to claim 1, characterized in that: The step of judging whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, heating to a preset temperature or for a preset time and then stopping the heating, comprises: When the cooling water temperature before the generator set is started is lower than the first temperature threshold, the heater output port of the generator set controller outputs a high level to control the heater connected to the generator set controller to heat the cooling water. When the water temperature reaches the preset temperature, the remaining time is skipped, the heater output port of the generator set controller returns to a low level, and heating is stopped. If the water temperature still does not reach the preset temperature at the end of the heating time, the heater output port of the generator set controller also returns to a low level and heating is stopped.

4. The low temperature starting method of a generator set according to claim 1, characterized in that: The method of judging whether intake air preheating is required according to the cooling water temperature before the generator set is started, and if intake air preheating is required, setting the preheating time according to the cooling water temperature before the generator set is started, and stopping the intake air preheating after the set preheating time is reached, includes: When the cooling water temperature before the generator set is started is lower than the second temperature threshold, the preheating output port of the generator set controller outputs a high level, and the output duration is set according to the cooling water temperature before the generator set is started, and the duration is 10 to 60s. After the intake air preheating reaches the duration, the preheating output port of the generator set controller returns to a low level and stops preheating.

5. The low temperature starting method of a generator set according to claim 1, characterized in that: The generator set is started, and if the start is successful, the safety delay is entered; if the start fails, the above three steps are repeated, including: Control the starter motor to drag the engine to the speed required for starting. If the required speed is reached, the start is successful and the safety delay is entered; if the start fails, repeat the above three steps. If the start is still not successful after repeating the preset number of times, an alarm is sounded.

6. The low temperature starting method of a generator set according to claim 1, characterized in that: The control of the generator set to enter the start-up idle stage, setting the start-up idle duration according to the cooling water temperature before the generator set is started, and skipping the stage in advance if the idle speed is judged to be stable during the period, includes: Control the engine speed. During the startup idle time, if the engine speed fluctuation is stable within the preset fluctuation range and lasts for a preset time, skip this stage in advance.

7. The low temperature starting method of a generator set according to claim 1, characterized in that: The control of the generator set to enter the high-speed warm-up stage, setting the high-speed warm-up time according to the cooling water temperature before the generator set is started, and skipping the stage in advance if it is judged that the high speed is stable during the period, and completing the start-up of the generator set, includes: Control the engine speed. During the high-speed warm-up period, if the engine speed fluctuation is stable within the preset fluctuation range and lasts for a preset period of time, skip this stage in advance and complete the start-up of the generator set.

8. A low temperature starting device for a generator set, characterized in that: include: The water temperature acquisition module is used to obtain the cooling water temperature before the generator set is started; A heating module, used to determine whether the cooling water needs to be heated according to the cooling water temperature before the generator set is started, and if heating is required, heating to a preset temperature or for a preset time before stopping heating; An intake air preheating module is used to determine whether intake air preheating is required according to the cooling water temperature before the generator set is started. If intake air preheating is required, the preheating time is set according to the cooling water temperature before the generator set is started, and the intake air preheating stops after the set preheating time is reached; A safety delay module is used to start the generator set. If the start-up is successful, the safety delay is entered. If the start-up fails, the water temperature acquisition module, the heating module and the intake air preheating module are controlled to repeat the action; The start idle module is used to control the generator set to enter the start idle stage, and the start idle duration is set according to the cooling water temperature before the generator set is started. If the idle speed is judged to be stable during this period, the stage is skipped in advance; The high-speed warm-up module is used to control the generator set to enter the high-speed warm-up stage. The high-speed warm-up time is set according to the cooling water temperature before the generator set is started. If it is judged that the high speed is stable during this period, this stage is skipped in advance to complete the start-up of the generator set.

9. An electronic device, characterized in that: include: processor; as well as Memory for storing programs, The program includes instructions, which, when executed by the processor, cause the processor to perform the method according to any one of claims 1 to 8.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to make a computer execute the method according to any one of claims 1-8.

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