Generator set control system for preventing power shortage of storage battery and generator set

Abstract

The utility model discloses a generator set control system and a generator set capable of preventing power shortage of a storage battery, the control system comprises an engine rotating speed detection module, a fuel supply solenoid valve, a timing module and a main control module, and the engine rotating speed detection module, the fuel supply solenoid valve and the timing module are respectively connected with the main control module; the engine rotating speed detection module is used for detecting a rotating speed signal of an engine and sending the detected rotating speed signal to the main control module; the main control module is used for receiving the rotating speed signal, outputting a corresponding control signal according to the rotating speed signal to control the power-on state of the fuel supply electromagnetic valve or the timing module, and outputting a corresponding control signal according to the rotating speed signal and the timing result of the timing module to control the power-on state of the fuel supply electromagnetic valve; the fuel supply electromagnetic valve is used for disconnecting or connecting the fuel supply pipeline according to the control signal output by the main control module. According to the utility model, the problem of power shortage of the storage battery caused by rapid consumption of the electric quantity of the storage battery of the generator set can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, in particular to a generator set control system and a generator set for preventing battery power failure. Background Art

[0002] Generator sets are complete sets of mechanical equipment that convert other forms of energy into electrical energy. Currently, generator sets using fuel engines as power mainly provide temporary power for hospitals, hotels, homes, urban construction, environmental protection and other fields.

[0003] Fuel engines include those that use fuel (such as gasoline, diesel, etc.) alone as energy, those that use gas (such as liquefied petroleum gas (LPG), natural gas (NG), etc.) alone as energy, and multi-fuel engines that use both fuel and gas. For multi-fuel engines, a fuel selection switch is generally set to switch between the various fuels used by the engine.

[0004] The generator set using a fuel engine as power mainly includes an engine, a generator and a battery. The crankshaft of the engine is connected to the power input end of the generator, so that the engine drives the generator to rotate to generate electricity, and the generator is connected to the battery to charge the battery. When in use, the engine drives the generator to rotate through the crankshaft to generate electricity. After the power output by the generator is converted into voltage, it charges the battery on the one hand and supplies power to the electrical load on the other.

[0005] At present, for generator sets that use fuel engines as power, when the power switch is turned on, the fuel supply solenoid valve in the engine's fuel supply system is always energized to keep the fuel supply pipeline in an open state. Since the power of the fuel supply solenoid valve is relatively large, if the user forgets to turn off the power switch after use, the battery power will be quickly consumed by the fuel supply solenoid valve, which may easily cause the battery to run low and cause the generator set to fail to start normally. Utility Model Content

[0006] The utility model aims to provide a generator set control system and a generator set for preventing battery power failure, so as to prevent the problem of battery power failure caused by rapid consumption of battery power of the generator set.

[0007] In order to achieve the above-mentioned purpose of the utility model, according to the first aspect of the utility model, the utility model provides a generator set control system for preventing battery power loss, the generator set includes an engine, a generator and a battery, the engine is connected to the generator for driving, the generator is connected to the battery for charging the battery, and the control system includes:

[0008] An engine speed detection module, a fuel supply solenoid valve, a timing module and a main control module, wherein the engine speed detection module, the fuel supply solenoid valve and the timing module are respectively connected to the main control module, wherein:

[0009] The engine speed detection module is used to detect the speed signal of the engine and send the detected speed signal to the main control module;

[0010] The main control module is used to receive the speed signal, and output a corresponding control signal according to the speed signal to control the power-on state of the fuel supply solenoid valve or the timing module, and also output a corresponding control signal according to the speed signal and the timing result of the timing module to control the power-on state of the fuel supply solenoid valve;

[0011] The fuel supply solenoid valve is installed on the fuel supply pipeline of the engine, and is used to disconnect or connect the fuel supply pipeline according to the control signal output by the main control module.

[0012] Preferably, the main control module includes a speed signal sampling circuit, a fuel solenoid valve switch and an MCU controller, wherein:

[0013] The engine speed detection module is connected to the speed signal sampling circuit, the fuel supply solenoid valve is connected to the fuel solenoid valve switch, and the speed signal sampling circuit and the fuel solenoid valve switch are respectively connected to the MCU controller.

[0014] Preferably, the engine speed detection module adopts an electromagnetic pulse speed sensor.

[0015] Preferably, the timing module adopts a 555 timer.

[0016] Preferably, the engine is a multi-fuel engine.

[0017] Preferably, the generator set control system for preventing battery power failure further includes a fuel selection switch.

[0018] Correspondingly, the main control module further includes a fuel identification circuit connected to the MCU controller, and the fuel selection switch is connected to the fuel identification circuit.

[0019] Preferably, the fuel supply solenoid valve includes a gas supply solenoid valve and a fuel supply solenoid valve.

[0020] Correspondingly, the fuel solenoid valve switch includes a gas solenoid valve switch and a fuel solenoid valve switch.

[0021] in,

[0022] The gas supply solenoid valve is installed on the gas supply pipeline of the engine, and the gas supply solenoid valve is connected to the gas solenoid valve switch;

[0023] The fuel supply solenoid valve is installed on the fuel supply pipeline of the engine, and the fuel supply solenoid valve is connected to the fuel solenoid valve switch.

[0024] Preferably, the gas supply solenoid valve and the fuel supply solenoid valve are both normally closed solenoid valves.

[0025] Preferably, the gas solenoid valve switch and the fuel solenoid valve switch are both transistor switches.

[0026] According to a second aspect of the utility model, the utility model provides a generator set, comprising a generator set control system for preventing battery power loss as described in any one of the first aspects above.

[0027] It can be seen from the above technical scheme that the utility model provides a generator set control system and a generator set for preventing battery depletion. The engine speed signal is detected by the engine speed detection module, and the main control module outputs a corresponding control signal according to the speed signal to control the power-on state of the fuel supply solenoid valve or the timing module. The corresponding control signal is also output according to the speed signal and the timing result of the timing module to control the power-on state of the fuel supply solenoid valve. Therefore, when the power switch of the generator set is turned on but the engine of the generator set is not started (that is, the engine has no speed) for more than a certain period of time, the main control module disconnects the power supply of the fuel supply solenoid valve, so that the fuel supply solenoid valve will not continue to be energized when the generator set is not running (the engine has no speed) for more than a certain period of time, and no additional battery power will be consumed, which effectively avoids the rapid consumption of battery power and power depletion, resulting in the generator set being unable to start normally.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] The above additional aspects and / or advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0031] Figure 1This is a principle block diagram of a generator set control system for preventing battery power failure in a preferred embodiment of the utility model;

[0032] Figure 2 It is a schematic structural diagram of a generator set in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] like Figure 1 As shown, the embodiment of the utility model provides a generator set control system for preventing battery power loss, the generator set includes an engine 100, a generator 200 and a battery 300, the engine 100 is drivingly connected to the generator 200, and the generator 200 is connected to the battery 300 to charge the battery 300;

[0035] The control system includes:

[0036] The engine speed detection module 1, the fuel supply solenoid valve 2, the timing module 3 and the main control module 4 are connected to the engine speed detection module 1, the fuel supply solenoid valve 2 and the timing module 3 respectively.

[0037] The engine speed detection module 1 is used to detect the speed signal of the engine 100 and send the detected speed signal to the main control module 4;

[0038] The main control module 4 is used to receive the speed signal and output a corresponding control signal according to the speed signal to control the power-on state of the timing module 3, and also output a corresponding control signal according to the speed signal and the timing result of the timing module 3 to control the power-on state of the fuel supply solenoid valve 2;

[0039] The fuel supply solenoid valve 2 is installed on the fuel supply pipeline of the engine 100 . The fuel supply solenoid valve 2 is used to disconnect or connect the fuel supply pipeline according to the control signal output by the main control module 4 .

[0040] The working principle of the generator set control system for preventing battery power loss of the utility model is as follows:

[0041] When the power switch of the generator set is turned on, the engine speed detection module 1 detects the speed signal of the engine 100. When the speed of the engine 100 is not zero (indicating that the engine 100 is starting or has been started), the main control module 4 controls the fuel supply solenoid valve 2 to be energized to open the fuel supply solenoid valve 2, thereby connecting the fuel supply pipeline. When the speed of the engine 100 is zero (indicating that the engine 100 has not been started or has been turned off), the main control module 4 controls the timing module 3 to start timing. When the timing time reaches a preset time (for example, 20s), if the speed of the engine 100 is still zero at this time, the control module controls the fuel supply solenoid valve 2 to be powered off, so that the fuel supply solenoid valve 2 has no power input, so that the fuel supply solenoid valve 2 is not powered when the engine 100 is not started for a long time, and no additional power is consumed from the battery 300.

[0042] In summary, the present embodiment provides a generator set control system for preventing battery depletion, which can detect the speed signal of the engine 100 during the operation of the generator set, and output a corresponding control signal according to the speed signal to control the power-on state of the fuel supply solenoid valve 2 or the timing module 3, and output a corresponding control signal according to the speed signal and the timing result of the timing module 3 to control the power-on state of the fuel supply solenoid valve 2, so that when the power switch of the generator set is turned on but the engine 100 of the generator set is not started (that is, the engine 100 has no speed) for more than a certain period of time, the main control module 4 can disconnect the power supply of the fuel supply solenoid valve 2, so that the fuel supply solenoid valve 2 will not continue to be energized when the generator set is not running (the engine 100 has no speed) for more than a certain period of time, and no additional power will be consumed by the battery 300, effectively avoiding the rapid consumption of the battery 300 and the depletion of power, which will cause the generator set to fail to start normally.

[0043] In one embodiment, the main control module 4 includes a speed signal sampling circuit 41, a fuel solenoid valve switch 42 and an MCU controller 43, wherein:

[0044] The engine speed detection module 1 is connected to the speed signal sampling circuit 41 , the fuel supply solenoid valve 2 is connected to the fuel solenoid valve switch 42 , and the speed signal sampling circuit 41 and the fuel solenoid valve switch 42 are connected to the MCU controller 43 respectively.

[0045] During the operation of the generator set, the speed signal of the engine 100 detected by the engine speed detection module 1 is collected in real time or according to a preset sampling frequency (for example, 10ms) through the speed signal sampling circuit 41, and the collected speed signal of the engine 100 is sent to the MCU controller 43. The MCU controller 43 determines whether the engine 100 is started according to the received speed signal. When the engine 100 is not started, the MCU controller 43 controls the timing module 3 to start timing. When the timing time reaches the preset time, the engine 100 has not started. The fuel supply solenoid valve 2 is controlled to lose power through the fuel solenoid valve switch 42, and the fuel supply solenoid valve 2 no longer consumes the power of the battery 300.

[0046] Specifically, in this embodiment, the MCU controller adopts a single chip microcomputer of model ES7P169CFGTF.

[0047] In one embodiment, the engine speed detection module 1 uses an electromagnetic pulse speed sensor. The electromagnetic pulse speed sensor uses the principle of electromagnetic induction to convert the input motion speed into an induced potential output in the coil. It directly converts the mechanical energy of the object being measured into an electrical signal output, does not require an external power supply, and is a typical active sensor. Since this sensor has a large output power, the matching circuit is relatively simple, and the zero position and performance are stable.

[0048] In some other embodiments, the engine speed detection module 1 may also adopt a Hall-type speed sensor or a photoelectric speed sensor.

[0049] In one embodiment, the timing module 3 uses a 555 timer, which has low cost, simple circuit structure and accurate timing result.

[0050] The generator set control system for preventing battery power loss of the present application is applicable to a single-fuel engine 100 that uses fuel oil or gas alone, and is also applicable to a multi-fuel engine that uses fuel oil and gas simultaneously. In one embodiment, the engine 100 is a multi-fuel engine.

[0051] When the engine 100 is a multi-fuel engine, in one embodiment, the generator set control system for preventing battery power failure further includes a fuel selection switch 5.

[0052] Correspondingly, the main control module 4 further includes a fuel identification circuit 44 connected to the MCU controller 43 , and the fuel selection switch 5 is connected to the fuel identification circuit 44 .

[0053] In this embodiment, for a generator set using a multi-fuel engine as power, a fuel selection switch 5 and a fuel identification circuit 44 are set. The fuel identification circuit 44 is used to identify the type of fuel currently in use according to the current state of the fuel selection switch 5. The MCU controller 43 of the main control module 4 outputs a corresponding control signal to control the power-on state of the corresponding fuel supply solenoid valve 2 according to the switching state of the fuel selection switch 5 (different switching states of the fuel selection switch 5 correspond to different types of fuel currently in use).

[0054] Based on the previous embodiment, in one embodiment, the fuel supply solenoid valve 2 includes a gas supply solenoid valve 21 and a fuel supply solenoid valve 22.

[0055] Accordingly, the fuel solenoid valve switch 42 includes a gas solenoid valve switch 421 and an oil solenoid valve switch 422.

[0056] in,

[0057] The gas supply solenoid valve 21 is installed on the gas supply pipeline of the engine 100, and the gas supply solenoid valve 21 is connected to the gas solenoid valve switch 421;

[0058] The fuel supply solenoid valve 22 is installed on the fuel supply pipeline of the engine 100 , and the fuel supply solenoid valve 22 is connected to the fuel solenoid valve switch 422 .

[0059] Specifically, in this embodiment, the gas supply solenoid valve 21 and the fuel supply solenoid valve 22 are both normally closed solenoid valves.

[0060] When the fuel selection switch 5 selects fuel, the main control module 4 identifies it as fuel state and starts running. When it is detected that the speed signal of the engine 100 is not zero, the fuel solenoid valve switch 422 is controlled to open the fuel supply solenoid valve 22 (the gas supply solenoid valve 21 is not powered and is in a closed state at this time), ensuring that the fuel can enter the carburetor normally for combustion. After the start is successful, the main control module 4 samples the speed signal of the engine 100 detected by the engine speed detection module 1 in real time through the speed signal sampling circuit 41. When the speed signal of the engine 100 is not detected for a preset time (that is, the speed signal of the engine 100 is zero), the main control module 4 immediately controls the fuel solenoid valve switch 422 to be disconnected to prevent the fuel supply solenoid valve 22 from continuing to consume the power of the battery 300.

[0061] When the fuel selection switch 5 selects gas, the main control module 4 identifies it as gas state and starts running. Before the generator set is started, the main control module 4 does not control the gas supply solenoid valve 21 to be energized to avoid the battery power being quickly consumed due to long-term non-startup. Only when it is detected that the speed signal of the engine 100 is not zero, the gas solenoid valve switch 421 is controlled to open the gas supply solenoid valve 21 to ensure that the gas can enter the carburetor normally for combustion. After the start is successful, the main control module 4 samples the speed signal of the engine 100 detected by the engine speed detection module 1 in real time through the speed signal sampling circuit 41. When the speed signal of the engine 100 is not detected for a preset time (that is, the speed signal of the engine 100 is zero), the main control module 4 immediately controls the gas solenoid valve switch 421 to be disconnected to prevent the gas supply solenoid valve 21 from continuing to consume the power of the battery 300.

[0062] In one embodiment, both the gas solenoid valve switch 421 and the fuel solenoid valve switch 422 are transistor switches.

[0063] like Figure 2 As shown, an embodiment of the utility model further provides a generator set, including an engine 100, a generator 200 and a battery 300, wherein the engine 100 is drivingly connected to the generator 200, the generator 200 is connected to the battery 300 to charge the battery 300, and also includes the generator set control system 400 for preventing the battery from running low in any of the above embodiments.

[0064] The working principle and beneficial effects of the generator set in this embodiment are the same as those of the generator set control system for preventing battery power failure in the above-mentioned embodiment, and will not be described in detail here.

[0065] In the embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described above are merely schematic. For example, the division of modules is only a logical function division. There may be other division methods in actual implementation, such as: multiple modules or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0066] In addition, all functional modules in the embodiments of the present invention may be integrated into one processor, or each module may be a separate device, or two or more modules may be integrated into one device; each functional module in the embodiments of the present invention may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0067] Those skilled in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the above method embodiments are executed; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM), disks or optical disks, etc. Various media that can store program codes.

[0068] It should be understood that the use of "system", "device", "unit" and / or "module" in this application is only a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

[0069] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0070] In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, 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" means two or more than two.

[0071] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0072] If a flow chart is used in the present application, the flow chart is used to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or a certain step or several steps of operations can be removed from these processes.

[0073] The above is a detailed introduction to a generator set control system and a generator set for preventing battery power loss provided by the utility model. The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the utility model. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown in this article, but will conform to the widest range consistent with the principles and novel features disclosed in this article.

Claims

1. A generator set control system for preventing battery power failure, the generator set comprising an engine, a generator and a battery, the engine is connected to the generator for driving, the generator is connected to the battery for charging the battery, characterized in that: The control system comprises: An engine speed detection module, a fuel supply solenoid valve, a timing module and a main control module, wherein the engine speed detection module, the fuel supply solenoid valve and the timing module are respectively connected to the main control module, wherein: The engine speed detection module is used to detect the speed signal of the engine and send the detected speed signal to the main control module; The main control module is used to receive the speed signal, and output a corresponding control signal according to the speed signal to control the power-on state of the fuel supply solenoid valve or the timing module, and also output a corresponding control signal according to the speed signal and the timing result of the timing module to control the power-on state of the fuel supply solenoid valve; The fuel supply solenoid valve is installed on the fuel supply pipeline of the engine, and is used to disconnect or connect the fuel supply pipeline according to the control signal output by the main control module.

2. The generator set control system for preventing battery power failure according to claim 1, characterized in that: The main control module includes a speed signal sampling circuit, a fuel solenoid valve switch and an MCU controller, wherein: The engine speed detection module is connected to the speed signal sampling circuit, the fuel supply solenoid valve is connected to the fuel solenoid valve switch, and the speed signal sampling circuit and the fuel solenoid valve switch are respectively connected to the MCU controller.

3. The generator set control system for preventing battery power failure according to claim 1, characterized in that: The engine speed detection module adopts an electromagnetic pulse speed sensor.

4. The generator set control system for preventing battery power failure according to claim 1, characterized in that: The timing module adopts a 555 timer.

5. The generator set control system for preventing battery power failure according to claim 2, characterized in that: The engine is a multi-fuel engine.

6. The generator set control system for preventing battery power failure according to claim 5, characterized in that: Also includes the fuel selector switch, Correspondingly, the main control module further includes a fuel identification circuit connected to the MCU controller, and the fuel selection switch is connected to the fuel identification circuit.

7. The generator set control system for preventing battery power failure according to claim 5, characterized in that: The fuel supply solenoid valve includes a gas supply solenoid valve and a fuel supply solenoid valve. Correspondingly, the fuel solenoid valve switch includes a gas solenoid valve switch and a fuel solenoid valve switch. in, The gas supply solenoid valve is installed on the gas supply pipeline of the engine, and the gas supply solenoid valve is connected to the gas solenoid valve switch; The fuel supply solenoid valve is installed on the fuel supply pipeline of the engine, and the fuel supply solenoid valve is connected to the fuel solenoid valve switch.

8. The generator set control system for preventing battery power failure according to claim 7, characterized in that: The gas supply solenoid valve and the fuel supply solenoid valve are both normally closed solenoid valves.

9. The generator set control system for preventing battery power failure according to claim 7, characterized in that: The gas solenoid valve switch and the fuel solenoid valve switch both adopt transistor switches.

10. A generator set, characterized in that: A generator set control system for preventing battery power failure comprising the control system described in any one of claims 1 to 9.

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