Automobile dual-motor power generation system

Abstract

An automobile double-motor power generation system comprises a power generator, a special power generator, a secondary gear train, a primary gear train and an engine, the power generator is mounted at the upper left corner of the engine, the special power generator is mounted at the lower left corner of the engine and connected through the secondary gear train, the power generators are connected through the primary gear train, and the power generator is mounted at the lower left corner of the engine. A flywheel is arranged on the lower portion of the engine and connected with a power output shaft of the engine, the engine transmits power to the flywheel through the power output shaft by doing work and drives the flywheel to rotate, and a belt installed on the flywheel is driven by the flywheel to move. And the generator and the special motor are finally driven to rotate and generate electricity through the movement of each wheel disc on the engine. According to the utility model, the special generator and the generator are integrated on one engine, so that the utilization space of the whole vehicle can be saved, two different power supply modes are provided for the whole vehicle, and a larger operation space is provided for the arrangement of the whole vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle charging, and in particular to an automobile dual-motor power generation system. Background Art

[0002] As the degree of personalization of automobiles increases, the functions of electrical equipment and facilities equipped in automobiles are constantly increasing. For example, RVs need to be equipped with air conditioners, refrigerators, televisions, water heaters, induction cookers, etc.; refrigerated trucks need to be equipped with refrigeration equipment for the compartments, etc. These dedicated electrical facilities, if they do not have an external power supply or an independent generator, can only rely on the original vehicle's built-in generator or battery for power supply, which cannot meet the personalized customer's usage requirements at all.

[0003] Currently, construction vehicles on the market often use a generator inside the vehicle to power external devices. This generator draws power from the transmission's power take-off port, which then drives the generator through a power take-off. Another method involves connecting the mains power supply to the power-consuming equipment. Both configurations have varying degrees of drawbacks. The first is impractical for vehicles without a power take-off port, where a power take-off cannot be installed. Even if a power take-off port is available, the design is complex, expensive, and requires significant space. The second method, which requires external mains power, is impractical in environments without mains power.

[0004] Based on this, in order to solve the problem of insufficient power supply methods for traditional automobiles, this design proposes an automobile dual-motor power generation system. Utility Model Content

[0005] The utility model aims to provide a dual-motor power generation system for an automobile.

[0006] A dual-motor power generation system for an automobile includes: a generator, a dedicated generator, a secondary gear train, a primary gear train, and an engine. A generator is installed at the upper left corner of the engine, wherein a dedicated generator is installed at the lower left corner of the engine, the dedicated generator is connected through the secondary gear train, and the generator is connected through the primary gear train. A flywheel is provided at the lower part of the engine, and the flywheel is connected to the power output shaft of the engine. The engine transmits power to the flywheel through the power output shaft by doing work and drives the flywheel to rotate. The belt installed on the flywheel moves under the drive of the flywheel, and finally drives the generator and the dedicated electric motor to rotate and generate electricity through the movement of each wheel on the engine. This improvement installs an ordinary generator and a dedicated generator on the engine at the same time, which can enable the engine to do work on two circuit systems with different voltages. At the same time, the integration of the generator and the dedicated generator can leave more space on the entire vehicle structure, without the need to open up additional space for the installation of the dedicated generator, which is beneficial to the space layout and space utilization of the entire vehicle.

[0007] Preferably, the primary gear train is connected to the flywheel and the generator through a belt, the generator voltage is 12V, the generator and the vehicle circuit provide electricity, the generator has a generator clutch function, the generator clutch function can ensure the improvement of the transmission system operating performance, the generator can obtain power from the front-end gear train to start power generation, or release the output of the working stop current from the front-end gear train according to the power load of the external equipment.

[0008] Preferably, the secondary gear train is connected to the flywheel and the dedicated generator through a belt, the voltage of the dedicated generator is 48V, and the belt specification used in the secondary gear train is a 6PK multi-V elastic belt. The advantages of using a belt of this specification are that it has strong transmission capacity, low working stress, low transmission vibration, fast heat dissipation, stable operation, high elongation, large transmission ratio, obvious energy-saving effect, and small space occupation.

[0009] Preferably, the dedicated generator circuit includes: a dedicated generator, a DCDC converter, a 48V phosphoric acid battery and an external modified electrical appliance. The left side of the dedicated generator is grounded, the right side of the dedicated generator is connected to a charging circuit, the right side of the charging circuit is connected to the DCDC converter, the right side of the DCDC converter is connected to the modified circuit, and the right side of the DCDC converter is also connected to a 48V phosphoric acid battery and an inverter all-in-one.

[0010] Preferably, the lower part of the DCDC converter is connected to the IG electronic control, the upper part of the DCDC converter is connected to the excitation circuit, the left side of the excitation circuit is connected to the dedicated generator, and RS-485 communication is also connected between the DCDC converter and the 48V phosphoric acid battery.

[0011] The beneficial effects of the above scheme are:

[0012] 1. The utility model installs a generator and a dedicated generator on the engine at the same time, and drives the generator and the dedicated generator to generate electricity through the coordinated transmission of each wheel system; the mechanical work of the engine is converted into electrical energy to power the entire vehicle and external equipment. The integration of the generator and the dedicated generator can realize that one engine drives two types of generators, which can improve the spatial layout of the entire vehicle in terms of structural space, save the entire vehicle space, and improve the transmission efficiency.

[0013] 2. The utility model uses a 6PK elastic belt for transmission between each wheel system. The elastic belt of this specification has the advantages of strong transmission capacity and low working stress. At the same time, it has good performance in transmission vibration and operation stability, and has a long service life, obvious energy-saving effect, and takes up little space.

[0014] 3. In the utility model, an excitation circuit is provided in the circuit of the generator. This circuit can adjust the current accordingly according to the changes of the dedicated generator and ensure stable voltage. It can also control the voltage distribution between each generator to ensure that the reactive power between the generators is minimized. When a generator fails, the excitation system can demagnetize it to prevent the fault from continuing to occur in the first time. It can also limit the maximum or minimum excitation of the generator according to the usage scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is the working circuit principle diagram of the special generator of this utility model;

[0017] In the figure: 1. Generator; 2. Special generator; 3. Secondary gear train; 4. Primary gear train; 5. Engine; 6. Flywheel. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited thereto.

[0019] according to Figure 1 As shown, a dual-motor power generation system for an automobile includes: a generator 1, a dedicated generator 2, a secondary gear train 3, a primary gear train 4, and an engine 5. The generator 1 is installed at the upper left corner of the engine 5, wherein the dedicated generator 2 is installed at the lower left corner of the engine 5, the dedicated generator 2 is connected through the secondary gear train, and the generator 1 is connected through the primary gear train 4. A flywheel 6 is provided at the lower part of the engine 5, and the flywheel 6 is connected to the power output shaft of the engine 5. When working, the engine 5 performs work through combustion and outputs part of the mechanical work through the flywheel 6. The rotating flywheel 6 will drive the belts of the gear train 4 and the secondary gear train 3 to move.

[0020] Specifically, the primary gear train 4 is connected to the flywheel 6 and the generator 1 through a belt. The voltage of the generator 1 is 12V. The generator 1 provides electricity to the entire vehicle circuit. The generator 1 has a generator clutch function. The generator 1 is connected to the primary gear train 4. At this time, the belt will drive the generator 1 to generate electricity. The generator supplies power to the entire vehicle circuit by outputting a 12V voltage to ensure normal power consumption of various systems of the vehicle. At the same time, the generator 1 also has a clutch function, which can ensure the normal output power of the generator 1 and the stability of the output voltage.

[0021] Specifically, the secondary gear train 3 is connected to the flywheel 6 and the dedicated generator 2 through a belt. The voltage of the dedicated generator 2 is 48V. The belt specification used by the secondary gear train 3 is a 6PK multi-V elastic belt. Since the headphone gear train 3 is also connected to the flywheel 6, when the flywheel 6 rotates, it also drives the dedicated motor 2 to rotate and generate electricity. The working voltage of the dedicated motor 2 is 48V, which can ensure the normal use of the external equipment of the whole vehicle.

[0022] Furthermore, since a 6PK poly-V elastic belt is used to connect the secondary gear train 3 and the flywheel 6, the belt can provide stable transmission performance during operation while generating less vibration, running smoothly and saving energy. The small space occupied is conducive to the arrangement between the dedicated generator 2 and the engine 5.

[0023] Specifically, according to Figure 2 As shown, the dedicated generator 2 circuit includes: a dedicated generator 2, a DCDC converter, a 48V phosphoric acid battery and an external modified electrical appliance. The left side of the dedicated generator 2 is grounded, the right side of the dedicated generator 2 is connected to a charging circuit, the right side of the charging circuit is connected to a DCDC converter, the right side of the DCDC converter is connected to a modified circuit, the right side of the DCDC converter is also connected to a 48V phosphoric acid battery and an inverter all-in-one, the lower part of the DCDC converter is connected to the IG electronic control, the upper part of the DCDC converter is connected to the excitation circuit, the left side of the excitation circuit is connected to the dedicated generator 2, and RS-485 communication is also connected between the DCDC converter and the 48V phosphoric acid battery.

[0024] During operation, the dedicated generator 2 generates electricity, and the output current will flow into the charging circuit, flow through the DCDC converter, and then flow from the DCDC converter to the 48V phosphate battery and other external devices. An excitation circuit is also provided between the dedicated generator 2 and the DCDC converter. Since the power consumption of the modified external appliances is intermittent, sometimes there is no electricity, sometimes the load is high, and sometimes the load is light, the addition of the excitation circuit can adjust the current accordingly according to the load changes of the dedicated generator and maintain a normal and stable voltage. It can also control the voltage distribution between the various generators to ensure that the reactive power between the generators is minimized. When a generator fails, the excitation system can demagnetize it and prevent the fault from continuing. At the same time, the excitation system can set the maximum or minimum excitation limit for the generator according to the usage scenario.

Claims

1. An automotive dual-motor power generation system, comprising: A generator (1), a dedicated generator (2), a secondary gear train (3), a primary gear train (4), and an engine (5), wherein the generator (1) is installed at the upper left corner of the engine (5), and is characterized in that the dedicated generator (2) is installed at the lower left corner of the engine (5), the dedicated generator (2) is connected via the secondary gear train (3), the generator (1) is connected via the primary gear train (4), and a flywheel (6) is provided at the lower part of the engine (5), and the flywheel (6) is connected to the power output shaft of the engine (5).

2. The automotive dual-motor power generation system according to claim 1, characterized in that: The primary gear train (4) is connected to the flywheel (6) and the generator (1) via a belt. The voltage of the generator (1) is 12V. The generator (1) and the entire vehicle circuit provide electricity. The generator (1) has a clutch function.

3. The automotive dual-motor power generation system according to claim 1, characterized in that: The secondary gear train (3) is connected to a flywheel (6) and a dedicated generator (2) via a belt. The voltage of the dedicated generator (2) is 48V. The belt specification used in the secondary gear train (3) is a 6PK multi-V elastic belt.

4. The automotive dual-motor power generation system according to claim 1, characterized in that: The circuit of the dedicated generator (2) comprises: a dedicated generator (2), a DCDC converter, a 48V phosphoric acid battery and an external modified electrical appliance. The left side of the dedicated generator (2) is grounded, the right side of the dedicated generator (2) is connected to a charging circuit, the right side of the charging circuit is connected to the DCDC converter, the right side of the DCDC converter is connected to the modified circuit, and the right side of the DCDC converter is also connected to a 48V phosphoric acid battery and an inverter all-in-one.

5. The automotive dual-motor power generation system according to claim 4, characterized in that: The lower part of the DCDC converter is connected to the IG electronic control, the upper part of the DCDC converter is connected to the excitation circuit, the left side of the excitation circuit is connected to the dedicated generator (2), and the DCDC converter and the 48V phosphoric acid battery are also connected to RS-485 communication.

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