A dual-generator operation system and control method for a fuel vehicle

Abstract

The application provides a fuel vehicle double-generator operation system and a control method, and relates to the technical field of vehicle power supply.The system comprises a first power generation system, and the first power generation system outputs first electric energy for use by a first load of the vehicle.The system further comprises a second power generation system, which comprises: a power generation module driven by an engine to output second electric energy; a direct current conversion module, the input end of which is connected to the output end of the power generation module, and which is used to convert the second electric energy output by the power generation module into target electric energy that meets preset storage conditions; and an electric energy storage module, the input end of which is connected to the output end of the direct current conversion module, and which is used to store the target electric energy converted and output by the direct current conversion module, and output the target electric energy when preset discharge conditions are met for use by a second load of the vehicle.The application aims to solve the technical problem that the electric energy generated by the existing vehicle power generation system is insufficient for use, especially for use by a modified vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle power supply, in particular to a fuel vehicle dual-generator operation system and control method. BACKGROUND

[0002] With the continuous development of society, vehicles have gradually entered thousands of households, and the number of electrical appliances on vehicles is increasing,

[0003] In the prior art, the high-power electrical equipment of the vehicle is arranged at the output end of the power storage unit of the traditional power generation system, that is, connected to the 12V storage battery arranged in the engine compartment. During use, the high-power electrical equipment often causes the 12V storage battery to be discharged, thereby causing the vehicle to be unable to be normally used, such as being unable to be normally started.

[0004] Therefore, the prior art generally has the technical problem that the power consumption of the vehicle is large, especially for modified vehicles, and the power generated by the vehicle power generation system is not enough for use. SUMMARY

[0005] Therefore, the present application aims to provide a fuel vehicle dual-generator operation system and control method, which aims to solve the technical problem that the power consumption of the vehicle is large, especially for modified vehicles, and the power generated by the vehicle power generation system is not enough for use.

[0006] One aspect of the present application is to provide a fuel vehicle dual-generator operation system, which comprises a first power generation system, wherein the first power generation system outputs first power for use by a first load of the vehicle, and further comprises a second power generation system, wherein the second power generation system comprises:

[0007] a power generation module driven by an engine to output second power;

[0008] a direct current conversion module, an input end of which is connected to an output end of the power generation module, and which is used to convert the second power output by the power generation module into target power meeting preset storage conditions;

[0009] a power storage module, an input end of which is connected to an output end of the direct current conversion module, and which is used to store the target power converted and output by the direct current conversion module, and output the target power to be used by a second load of the vehicle when preset discharge conditions are met;

[0010] wherein the second load is an electrical equipment in the vehicle whose power consumption is greater than a preset threshold.

[0011] According to one aspect of the above technical solution, the direct current conversion module comprises:

[0012] A direct current conversion unit, an input end of the direct current conversion unit being electrically connected with an output end of the power generation module;

[0013] A surge absorption unit, an input end of the surge absorption unit being connected between the output end of the power generation module and the input end of the direct current conversion unit, for absorbing a surge pulse in the second electric energy, so that the second electric energy is converted into the target electric energy by the direct current conversion unit after the surge pulse is eliminated;

[0014] A communication control unit, the communication control unit being electrically connected with the surge absorption unit and the direct current conversion unit respectively, for controlling the surge absorption unit and the direct current conversion unit respectively, and the communication control unit being further electrically connected with a vehicle controller, for communicating with the vehicle controller through the vehicle controller.

[0015] According to an aspect of the above technical solution, the direct current conversion unit is a DC\DC direct current converter.

[0016] According to an aspect of the above technical solution, the communication control unit is electrically connected with the vehicle controller through a CAN line.

[0017] According to an aspect of the above technical solution, an inverter is further electrically connected between the output end of the electric energy storage module and the second load.

[0018] According to an aspect of the above technical solution, the power generation module of the first power generation system and the power generation module of the second power generation system are simultaneously driven by the engine to work, and are in a same set of wheel train or are respectively in two independent wheel trains.

[0019] According to an aspect of the above technical solution, in the second power generation system, the output end of the electric energy storage module is further electrically connected to the input end of the electric energy storage unit of the first power generation system, so that the electric energy storage unit of the second power generation system supplements the electric energy storage unit of the first power generation system.

[0020] According to an aspect of the above technical solution, the electric energy storage unit of the first power generation system is in communication connection with the vehicle controller, so that when the residual electric quantity of the electric energy storage unit of the first power generation system is less than a preset threshold value, the electric energy storage unit of the second power generation system is controlled to supplement the electric energy storage unit of the first power generation system.

[0021] Another aspect of the present application is to provide a control method of a fuel vehicle double-generator operation system, the method being used for controlling the fuel vehicle double-generator operation system in the above technical solution, and the method comprising:

[0022] Controlling the engine to operate, so that the power generation module works to output the second electric energy;

[0023] When the power generation module outputs the second electric energy, the direct current conversion module is controlled to work to convert the second electric energy to obtain target electric energy meeting preset storage conditions;

[0024] The target electric energy is stored by the electric energy storage module, and when preset discharge conditions are met, the electric energy storage module is controlled to output the target electric energy for use by a second load of the vehicle.

[0025] According to an aspect of the above technical solution, when the power generation module outputs the second electric energy, the step of controlling the direct current conversion module to work to convert the second electric energy to obtain target electric energy meeting preset storage conditions specifically includes:

[0026] controlling a surge absorption unit in the direct current conversion module to work to absorb surge pulses in the second electric energy;

[0027] and controlling a direct current conversion unit in the direct current conversion module to work to directly convert the second electric energy after the surge pulses are eliminated to obtain the target electric energy.

[0028] Compared with the prior art, the vehicle dual-generator operation system shown in the embodiment has the following beneficial effects:

[0029] By providing a first power generation system and a newly added second power generation system on the vehicle, the second power generation system includes a power generation module, a direct current conversion module, and an electric energy storage module. The power generation module is driven by an engine to output second electric energy. Since the output end of the power generation module is connected to the output end of the direct current conversion module, the second electric energy will be directly converted by the direct current conversion module to obtain target electric energy with a fixed voltage. Since the output end of the direct current conversion module is connected to the input end of the electric energy storage module, the target electric energy can be stored by the electric energy storage module. When the second load needs to use electric energy, the electric energy storage module will output the target electric energy for use by the second load, ensuring that the electric energy storage unit of the first power generation system has sufficient electric energy, avoiding the depletion of the electric energy storage unit of the first power generation system due to the large power consumption of the second load, and thus ensuring that the first load of the vehicle can be normally used during use and the second load can be normally used when needed. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a flowchart of the dense shelf MR interaction management method in the first embodiment of the application.

[0031] Figure 2 It is a structure block diagram of the dense shelf MR interaction management system in the third embodiment of the application.

[0032] The following detailed description will further explain the present application with reference to the above mentioned drawings. DETAILED DESCRIPTION

[0033] For the purposes of this disclosure, reference will be made to the accompanying drawings which form a part of the specification. Several embodiments of the present application are described herein below. It is to be understood, however, that the application can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the application to those skilled in the art.

[0034] It is to be understood that where the term "fixedly attached" is used, it can be directly or indirectly attached to another element. Where the term "connected" is used, it can be directly or indirectly connected to another element. The terms "vertical", "horizontal", "left", "right", and the like as used herein are made only for purposes of illustration and are not intended to be limiting.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0036] Embodiment One

[0037] Referring to Figure 1 The first embodiment of the present application provides a dual-generator operation system for a fuel vehicle, which comprises a first power generation system, and the first power generated by the first power generation system is used for the first load of the vehicle. Specifically, the first power generation system comprises a power generation module arranged on the engine of the vehicle, and the power generation module is driven by the engine to generate power. The power is stored in the 12V storage battery in the engine compartment. When the first load of the vehicle needs power, the 12V storage battery outputs power to the first load to make the first load work.

[0038] The first load is a starter of an engine, a loudspeaker, a combination instrument, a central control display screen, etc. The first load is a conventional electrical device on the vehicle, and the power consumption is small. The first load can generate power during the driving of the vehicle and store the power for use. However, when some unconventional electrical devices are installed on the vehicle, the power output by the conventional 12V storage battery cannot meet the use of the electrical devices. For the convenience of description, the electrical devices are referred to as second load in the embodiment. The second load is an electrical device with a power consumption greater than a preset threshold in the vehicle. The second load is, for example, a vehicle refrigerator, a rear entertainment system, etc. installed on the vehicle, especially on a special modified vehicle. For example, the power consumption of various emergency devices on a 120 emergency vehicle is large.

[0039] To solve the problem of the use of the second load with unconventional power consumption on the vehicle, the system further includes a second power generation system in the embodiment. The second power generation system includes a power generation module, a direct current conversion module, and an electric energy storage module.

[0040] In the embodiment, the power generation module is a generator driven by the engine to output second power. The power generation module of the first power generation system and the power generation module of the second power generation system are on separate wheel trains of the engine of the vehicle, that is, the power generation modules of the first power generation system and the second power generation system are driven by different output ends. In order to enable the power generation module of the second power generation system to output more power, the input end of the power generation module of the second power generation system is connected to the output end with a large shaft diameter of the engine. The two are driven by a belt, which has high synchronism and is relatively quiet during operation.

[0041] Further, the second power output by the power generation module is converted by the direct current conversion module in the embodiment, so as to be stored or used.

[0042] Specifically, the input end of the direct current conversion module is connected to the output end of the power generation module, for converting the second power output by the power generation module into target power meeting preset storage conditions. The direct current conversion module is a DC / DC converter, which converts the input voltage and effectively outputs a fixed voltage, so as to facilitate storage or use after direct current conversion.

[0043] In the embodiment, after the direct current conversion module converts the second power output by the power generation module into target power with a fixed voltage, the target power is stored by the electric energy storage module, so as to be output for use of the second load when the output conditions are met.

[0044] Specifically, the input end of the electric energy storage module is connected with the output end of the direct current conversion module, for storing the target electric energy converted and output by the direct current conversion module, and outputting the target electric energy for use by the second load of the vehicle when the preset discharging condition is met.

[0045] In this way, when the unconventional electrical equipment on the vehicle needs to use electricity, the electric energy storage unit of the second power generation system will output the target electric energy to the second load of the vehicle, and the second load will no longer use the electric energy of the electric energy storage unit (i.e., the 12V storage battery arranged in the engine compartment) of the first power generation system, ensuring that the electric energy of the electric energy storage unit of the first power generation system is sufficient, avoiding the depletion of the electric energy storage unit of the first power generation system caused by the large amount of electricity used by the second load, and thus ensuring that the first load of the vehicle can be normally used during use and the second load can be normally used when needed.

[0046] As shown above, the fuel vehicle double-generator operation system shown in the embodiment has the following beneficial effects:

[0047] By arranging the first power generation system and the newly added second power generation system on the vehicle, the second power generation system includes a power generation module, a direct current conversion module and an electric energy storage module, wherein the power generation module is driven by an engine to output second electric energy. Since the output end of the power generation module is connected to the output end of the direct current conversion module, the second electric energy will be converted into direct current by the direct current conversion module to obtain target electric energy with a fixed voltage. Since the output end of the direct current conversion module is connected to the input end of the electric energy storage module, the target electric energy can be stored by the electric energy storage module. When the second load needs to use electricity, the electric energy storage module will output the target electric energy for use by the second load, ensuring that the electric energy of the electric energy storage unit of the first power generation system is sufficient, avoiding the depletion of the electric energy storage unit of the first power generation system caused by the large amount of electricity used by the second load, and thus ensuring that the first load of the vehicle can be normally used during use and the second load can be normally used when needed.

[0048] Embodiment Two

[0049] The second embodiment of the present application provides a vehicle double-engine system operation system. The system shown in the embodiment is basically similar to the system shown in the first embodiment, and the difference lies in that:

[0050] In the embodiment, the direct current conversion module includes:

[0051] The input end of the direct current conversion unit is electrically connected with the output end of the power generation module.

[0052] a surge absorption unit, an input end of the surge absorption unit being connected between an output end of the power generation module and an input end of the direct current conversion unit, for absorbing surge pulses in the second electric energy, so that the second electric energy is converted into the target electric energy by the direct current conversion unit after the surge pulses are eliminated;

[0053] Specifically, the surge absorption unit is used to absorb the surge pulses in the second electric energy output from the power generation module to the direct current conversion module, so as to eliminate the surge pulses in the second electric energy as much as possible, and prevent the direct current conversion unit from being easily damaged when the surge pulses exist in the second electric energy.

[0054] a communication control unit, the communication control unit being electrically connected with the surge absorption unit and the direct current conversion unit respectively, for controlling the surge absorption unit and the direct current conversion unit respectively, and the communication control unit being further electrically connected with a vehicle controller, for communicating with the vehicle controller.

[0055] Specifically, the communication control unit is used to control the surge absorption unit and the direct current conversion unit, for controlling the surge absorption unit to absorb the surge pulses in the second electric energy and controlling the direct current conversion unit to convert the second electric energy after the surge pulses are eliminated.

[0056] Further, the communication control unit further has a communication function of communicating with the vehicle controller, and is electrically connected with the vehicle controller through a CAN line, so as to be able to control the direct current conversion module through the vehicle controller.

[0057] Further, an inverter is further electrically connected between an output end of the electric energy storage module and the second load.

[0058] Among them, in the second power generation system, the output end of the electric energy storage module is further electrically connected to the input end of the electric energy storage unit of the first power generation system, so as to supplement the electric energy of the electric energy storage unit of the first power generation system by the electric energy storage unit of the second power generation system.

[0059] Specifically, the electric energy storage unit of the first power generation system is in communication connection with the vehicle controller, so as to control the electric energy storage unit of the second power generation system to supplement the electric energy of the electric energy storage unit of the first power generation system when the residual electric quantity of the electric energy storage unit of the first power generation system is less than a preset threshold value.

[0060] In summary, the fuel vehicle dual-generator operation system shown in the embodiment has at least the following beneficial effects:

[0061] By setting a first power generation system on the vehicle and adding a second power generation system, the second power generation system includes a power generation module, a direct current conversion module and an electric energy storage module, wherein the power generation module is driven by the engine to output second electric energy, since the output end of the power generation module is connected to the output end of the direct current conversion module, the second electric energy will be converted by the direct current conversion module to obtain target electric energy with fixed voltage, and since the output end of the direct current conversion module is connected to the input end of the electric energy storage module, the target electric energy can be stored by the electric energy storage module, when the second load needs to use electricity, the electric energy storage module will output the target electric energy for the second load to use, which ensures that the electric energy of the electric energy storage unit of the first power generation system is sufficient, avoids the electric energy shortage of the electric energy storage unit of the first power generation system caused by the large power consumption of the second load, so as to ensure that the first load of the vehicle can be normally used during use and the second load can be normally used when needed.

[0062] Embodiment three

[0063] Please refer to Figure 2 The third embodiment of the present application provides a control method of a dual-generator operation system of a fuel vehicle, which is used in the dual-generator operation system of the fuel vehicle in the above technical solution, and the method comprises steps S01-S03:

[0064] Step S01, controlling the engine to operate, so that the power generation module works to output second electric energy;

[0065] Step S02, when the power generation module outputs the second electric energy, controlling the direct current conversion module to work to convert the second electric energy to obtain target electric energy meeting preset storage conditions;

[0066] Step S03, storing the target electric energy by the electric energy storage module, so as to control the electric energy storage module to output the target electric energy for the second load of the vehicle to use when the preset discharge condition is met.

[0067] The step of controlling the direct current conversion module to work to convert the second electric energy to obtain target electric energy meeting preset storage conditions when the power generation module outputs the second electric energy, specifically comprises:

[0068] Controlling a surge absorption unit in the direct current conversion module to work to absorb surge pulses in the second electric energy;

[0069] And controlling a direct current conversion unit in the direct current conversion module to work to convert the second electric energy after the surge pulses are eliminated to obtain target electric energy.

[0070] In summary, the fuel vehicle dual-generator operation system shown in the embodiment has the following beneficial effects:

[0071] By setting the first power generation system on the vehicle and adding the second power generation system, the second power generation system includes a power generation module, a direct current conversion module and an electric energy storage module, wherein the power generation module is driven by the engine to output second electric energy, since the output end of the power generation module is connected to the output end of the direct current conversion module, the second electric energy will be converted into direct current by the direct current conversion module to obtain target electric energy with fixed voltage, and since the output end of the direct current conversion module is connected to the input end of the electric energy storage module, the target electric energy can be stored by the electric energy storage module, when the second load needs to use electric energy, the electric energy storage module will output the target electric energy for the second load to use, ensuring that the electric energy storage unit of the first power generation system is sufficient, avoiding the electric energy storage unit of the first power generation system being depleted due to the large power consumption of the second load, thereby ensuring that the first load of the vehicle can be normally used during use and the second load can be normally used when needed.

[0072] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] The above-described embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but should not be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A dual generator operation system for a fuel vehicle, characterized in that, The system comprises a first power generation system, the first power generation system outputs first electric energy for use of a first load of the vehicle, and the system further comprises a second power generation system, the second power generation system comprises: a power generation module driven by the engine to output second electric energy; a direct current conversion module, an input end of the direct current conversion module is connected with an output end of the power generation module, and the direct current conversion module is used to convert the second electric energy output by the power generation module into target electric energy meeting preset storage conditions; an electric energy storage module, an input end of the electric energy storage module is connected with an output end of the direct current conversion module, and the electric energy storage module is used to store the target electric energy converted and output by the direct current conversion module, and output the target electric energy to be used by a second load of the vehicle when preset discharge conditions are met; wherein the second load is an electric device in the vehicle with an electric power consumption greater than a preset threshold value; the direct current conversion module comprises: a direct current conversion unit, an input end of the direct current conversion unit is electrically connected with an output end of the power generation module; a surge absorption unit, an input end of the surge absorption unit is connected between the output end of the power generation module and the input end of the direct current conversion unit, and the surge absorption unit is used to absorb a surge pulse in the second electric energy, so that the second electric energy is converted into the target electric energy by the direct current conversion unit after the surge pulse is eliminated; a communication control unit, the communication control unit is electrically connected with the surge absorption unit and the direct current conversion unit respectively, so as to control the surge absorption unit and the direct current conversion unit respectively, and the communication control unit is further electrically connected with a vehicle controller of the vehicle, so as to communicate through the vehicle controller; wherein in the second power generation system, an output end of the electric energy storage module is further electrically connected to an input end of an electric energy storage unit of the first power generation system, so as to supplement the electric energy storage unit of the first power generation system through the electric energy storage unit of the second power generation system.

2. The dual generator operation system for a fuel vehicle according to claim 1, wherein The direct current conversion unit is a DC\DC direct current converter.

3. The dual fuel cell operation system for a fuel vehicle according to claim 1, wherein The communication control unit is electrically connected with the vehicle controller through a CAN line.

4. The dual fuel cell operation system for a fuel vehicle according to claim 1, wherein An inverter is further electrically connected between the output end of the electric energy storage module and the second load.

5. The dual fuel cell operation system for a fuel vehicle according to claim 1, wherein The power generation module of the first power generation system and the power generation module of the second power generation system are simultaneously driven by the engine to work, and are in the same set of wheel train or are respectively in two independent wheel trains.

6. The dual fuel cell operation system for a fuel vehicle according to claim 1, wherein The electric energy storage unit of the first power generation system is in communication connection with the vehicle controller, so as to control the electric energy storage unit of the second power generation system to supplement the electric energy storage unit of the first power generation system when the residual electric quantity of the electric energy storage unit of the first power generation system is less than a preset threshold value.

7. A control method of a dual-generator operation system for a fuel vehicle, characterized by, The method is used for controlling the fuel vehicle double-generator operation system in any one of claims 1-6, and the method comprises: controlling the engine to operate, so that the power generation module works to output second electric energy; controlling the direct current conversion module to work to convert the second electric energy when the power generation module outputs the second electric energy, so as to obtain target electric energy meeting preset storage conditions through conversion; The target electric energy is stored by the electric energy storage module, so that the electric energy storage module outputs the target electric energy for use by a second load of the vehicle when preset discharging conditions are met.

8. The control method of the dual-fuel generator operation system for a fuel vehicle according to claim 7, characterized by, When the power generation module outputs the second electric energy, the step of controlling the direct current conversion module to work to convert the second electric energy to obtain target electric energy meeting preset storage conditions specifically includes: controlling a surge absorption unit in the direct current conversion module to work to absorb surge pulses in the second electric energy; and controlling a direct current conversion unit in the direct current conversion module to work to convert the second electric energy after the surge pulses are eliminated to obtain the target electric energy.

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