Vehicle-mounted power supply system and vehicle

Abstract

The utility model discloses a vehicle-mounted power supply system and a vehicle, and the vehicle-mounted power supply system comprises an engine which is provided with an output shaft; the first generator is arranged on the engine, and the first generator is in transmission connection with the output shaft; the second generator is arranged on the engine, the second generator and the first generator are arranged at an interval, and the second generator is selectively in transmission connection with the output shaft. The first power generator and the second power generator can supply power to the electric equipment of the vehicle and the electric equipment additionally installed on the vehicle, the generating capacity of the second power generator is improved, and the power utilization requirements of the electric equipment of the vehicle and the electric equipment additionally installed on the vehicle can be met at the same time.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an on-board power supply system and a vehicle. Background Technology

[0002] Some special vehicles on the market have a need to install on-board electrical equipment, but the power output of AC generators is limited and cannot currently meet the power needs of both the vehicle itself and the installed on-board equipment.

[0003] In related technologies, to simultaneously meet the power needs of the vehicle itself and the added on-board equipment, while minimizing modifications to the existing vehicle and engine, an engine-driven generator, along with its corresponding battery and wiring harness, is added to form an additional power generation system that provides dedicated power to the added equipment. Furthermore, to ensure that the power needs of the added on-board equipment are met when the engine is idling, a control system is needed to increase the engine's idle speed.

[0004] However, the power output of alternators is limited, and they cannot currently meet the power needs of both the vehicle's own electrical equipment and the electrical equipment installed on the vehicle. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an on-board power supply system that can simultaneously meet the power needs of both the vehicle's own electrical equipment and electrical equipment added to the vehicle.

[0006] This utility model also proposes a vehicle.

[0007] According to a first aspect of the present invention, an on-board power supply system includes: an engine having an output shaft; a first generator mounted on the engine and connected to the output shaft; and a second generator mounted on the engine and spaced apart from the first generator, selectively connected to the output shaft.

[0008] According to the vehicle power supply system of this utility model, the first generator and the second generator can supply power to the vehicle's own electrical equipment and the electrical equipment installed in the vehicle, respectively. The second generator has a higher power output and can simultaneously meet the power needs of the vehicle's own electrical equipment and the electrical equipment installed in the vehicle.

[0009] According to some embodiments of the present invention, a first pulley and a second pulley are provided on the output shaft. The first pulley and the second pulley rotate coaxially with the output shaft. The first pulley is driven by the first generator, the second pulley is driven by the second generator, and the second pulley is selectively driven by the output shaft.

[0010] According to some embodiments of the present invention, the engine is provided with a clutch, the clutch is disposed between the output shaft and the second pulley, and the clutch is configured to selectively engage between the output shaft and the second pulley.

[0011] According to some embodiments of the present invention, the vehicle power supply system further includes: a controller and a first switch, the controller and the first switch being electrically connected, the controller and the clutch being electrically connected, and the controller being configured to control the clutch to disconnect the output shaft and the second pulley when the first switch is triggered.

[0012] According to some embodiments of the present invention, the diameter of the second pulley is larger than the diameter of the first pulley.

[0013] According to some embodiments of the present invention, the first generator is provided with a third pulley, the second generator is provided with a fourth pulley, a first belt is provided between the first pulley and the third pulley, and a second belt is provided between the second pulley and the fourth pulley.

[0014] According to some embodiments of the present invention, the vehicle power supply system further includes: a controller and a second switch, the controller and the second switch being electrically connected, the controller being electrically connected to the engine, and the controller being configured to increase the engine speed when the second switch is triggered.

[0015] According to some embodiments of the present invention, the vehicle power supply system further includes: a first bracket, the first bracket being fixed on the engine, and the first generator being disposed on the first bracket; and the vehicle power supply system further includes: a second bracket, the second bracket being fixed on the engine, and the second generator being disposed on the second bracket.

[0016] According to some embodiments of the present invention, the vehicle power supply system further includes: a first battery, which is electrically connected to the first generator, and the first battery is used to supply power to the vehicle's own electrical equipment; the vehicle power supply system further includes: a second battery, which is electrically connected to the second generator, and the second battery is used to supply power to the electrical equipment installed in the vehicle.

[0017] The vehicle according to a second aspect of the present invention includes the on-board power supply system.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a structural schematic diagram of the vehicle power supply system according to an embodiment of the present utility model;

[0021] Figure 2 This is a structural schematic diagram of an engine according to an embodiment of the present utility model;

[0022] Figure 3 This is a control flowchart of the double-layer adapter pulley according to an embodiment of the present utility model;

[0023] Figure 4 This is a flowchart of the engine idle speed increase operation according to an embodiment of the present utility model.

[0024] Figure label:

[0025] 100. Vehicle power supply system;

[0026] 10. Engine; 11. First generator; 12. Second generator; 13. First pulley; 14. Second pulley; 15. First support; 16. Second support; 17. First belt; 18. Second belt;

[0027] 21. First storage battery; 22. Second storage battery; 23. Vehicle's own electrical equipment; 24. Electrical equipment added to the vehicle. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0029] The following is for reference. Figures 1-4 The present invention describes an on-board power supply system 100 according to an embodiment of the present invention, and also proposes a vehicle.

[0030] Reference Figure 1 As shown, the vehicle power supply system 100 of this utility model embodiment includes: an engine 10, a first generator 11, and a second generator 12.

[0031] An output shaft is provided on the engine 10. A first generator 11 is mounted on the engine 10 and is drivenly connected to the output shaft. A second generator 12 is mounted on the engine 10 and spaced apart from the first generator 11. The second generator 12 is selectively drivenly connected to the output shaft. Specifically, the engine 10 serves as a power source, providing power to the first generator 11 and the second generator 12. The first generator 11 and the second generator 12 can supply power to the vehicle's own electrical equipment 23 and the vehicle's added electrical equipment 24, respectively. Furthermore, the second generator 12 has a higher power output, enabling it to simultaneously meet the power needs of both the vehicle's own electrical equipment 23 and the vehicle's added electrical equipment 24.

[0032] Therefore, the first generator 11 and the second generator 12 can supply power to the vehicle's own electrical equipment 23 and the vehicle's added electrical equipment 24, respectively. The second generator 12 has a higher power output, which can simultaneously meet the power needs of the vehicle's own electrical equipment 23 and the vehicle's added electrical equipment 24.

[0033] Reference Figure 2 As shown, a first pulley 13 and a second pulley 14 are provided on the output shaft. Both the first pulley 13 and the second pulley 14 rotate coaxially with the output shaft. The first pulley 13 is driven by the first generator 11, and the second pulley 14 is driven by the second generator 12. The second pulley 14 is selectively driven by the output shaft, and the diameter of the second pulley 14 is larger than the diameter of the first pulley 13. Specifically, the engine 10 is also provided with a double-layer adapter pulley, which consists of an inner pulley and an outer pulley. The inner pulley is the first pulley 13, which is driven by the first generator 11, and the outer pulley is the second pulley 14, which is driven by the second generator 12.

[0034] The engine 10 belt is connected to the crankshaft pulley of the engine 10. After the engine 10 starts, the crankshaft rotates, and the engine 10 drives the first generator 11 to rotate and generate electricity. The first generator 11 is connected to the first pulley 13, and the second generator 12 is connected to the second pulley 14. The first pulley 13 and the second pulley 14 are coaxially connected to the output shaft of the engine 10. After the engine 10 starts, it can also drive the second generator 12 to rotate and generate electricity. By increasing the diameter of the second pulley 14, the transmission ratio is greatly increased, which can increase the speed of the second generator 12 when the engine 10 is idling, thereby increasing the power generation.

[0035] Furthermore, the engine 10 is equipped with a clutch, which is located between the output shaft and the second pulley 14. The clutch is configured to selectively engage between the output shaft and the second pulley 14. That is, when the clutch is disengaged, the second pulley 14 does not drive the second generator 12 to rotate, the outer pulley system of the transfer pulley stops rotating, reducing mechanical losses of the engine 10, and the second generator 12 does not generate electricity. When the clutch is engaged, the second pulley 14 drives the second generator 12 to rotate, and the second generator 12 generates electricity. The clutch can be an electronically controlled clutch.

[0036] Reference Figure 3 As shown, the vehicle power supply system 100 also includes: a controller and a first switch, the controller and the first switch being electrically connected, and the controller and the clutch being electrically connected. The controller is configured to control the clutch to disengage the output shaft and the second pulley 14 when the first switch is triggered. When the special vehicle is not using the vehicle-mounted electrical equipment 24, in order to reduce the mechanical losses generated by the engine 10 driving the second generator 12, a first switch is installed on the vehicle dashboard, controlled by the controller, and connected to the adapter pulley via a wiring harness. When the first switch is disconnected, the electronically controlled clutch is in a disengaged state, the second pulley 14 does not rotate with the crankshaft pulley of the engine 10, and the second generator 12 does not generate electricity; when the first switch is closed, the clutch is in a engaged state, the second pulley 14 rotates with the crankshaft pulley of the engine 10, and the second generator 12 generates electricity.

[0037] Reference Figure 2 As shown, the first generator 11 is equipped with a third pulley, and the second generator 12 is equipped with a fourth pulley. A first belt 17 is installed between the first pulley 13 and the third pulley, and a second belt 18 is installed between the second pulley 14 and the fourth pulley. The first belt 17 and the second belt 18 can be elastic belts, connecting the pulleys to achieve the transmission between the first generator 11, the second generator 12, and the double-layer adapter pulley. The use of elastic belts and double-layer adapter pulleys for transmission connection results in a simple and compact overall structure, easy maintenance, and high reliability.

[0038] Reference Figure 4As shown, the vehicle power supply system 100 also includes a controller and a second switch, which are electrically connected. The controller is also electrically connected to the engine 10. The controller is configured to increase the engine speed of the engine 10 when the second switch is triggered. Normally, when the engine 10 is idling, the second generator 12 provides limited current. However, some special vehicles require prolonged use of the vehicle-mounted electrical equipment 24 while idling. If the power supply system for the vehicle-mounted electrical equipment 24 cannot meet the power demand of the onboard equipment, the second battery 22 will be depleted. In this case, it is necessary to further increase the engine speed of the engine 10 to enable the second generator 12 to provide sufficient current. The specific measures to increase the idling speed are as follows: A second switch is installed on the vehicle dashboard and connected to the controller via a wiring harness. The controller has a preset function to increase the idling speed. When a special vehicle needs to use the vehicle-mounted electrical equipment 24 for a prolonged period while idling, the driver presses the second switch, outputting a signal to the controller. The controller receives and activates the function to increase the idling speed, increasing the engine speed of the engine 10, thereby increasing the power output of the second generator 12. This method is simple to operate and provides power to the vehicle-mounted electrical equipment 24 at a low cost.

[0039] Reference Figure 2 As shown, the vehicle-mounted power supply system 100 further includes: a first bracket 15, which is fixed to the engine 10, and a first generator 11 mounted on the first bracket 15; and a second bracket 16, which is fixed to the engine 10, and a second generator 12 mounted on the second bracket 16. That is, the first generator 11 is mounted on the engine 10 via the first bracket 15, and the second generator 12 is mounted on the engine 10 via the second bracket 16, reducing modifications to the engine 10 structure while ensuring the stability of both the first generator 11 and the second generator 12.

[0040] Reference Figure 1 As shown, the vehicle power supply system 100 also includes a first battery 21, which is electrically connected to a first generator 11. The first battery 21 is used to supply power to the vehicle's own electrical equipment 23. Specifically, passenger cars generally use a 12V power supply system. The first generator 11 and the first battery 21 are both 12V. The power supply system for the vehicle's own electrical equipment 23 mainly consists of the first generator 11, the first battery 21, and the wiring harness connecting these parts. The first generator 11 rotates to supply power to the vehicle's own electrical equipment 23 and to charge the first battery 21.

[0041] The vehicle power supply system 100 also includes a second battery 22, which is electrically connected to a second generator 12. The second battery 22 is used to supply power to the vehicle-mounted electrical equipment 24. The power supply system for the vehicle-mounted electrical equipment 24 mainly consists of the second generator 12, the second battery 22, and the wiring harness connecting the various parts. Since the vehicle-mounted electrical equipment 24 is a 24V system, the second generator 12 and the second battery 22 are also 24V. The second generator 12 rotates to supply power to the vehicle-mounted electrical equipment 24 and to charge the second battery 22.

[0042] A vehicle according to a second aspect of the present invention includes an on-board power supply system 100.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A vehicle-mounted power supply system, characterized in that, include: An engine (10) is provided with an output shaft; The first generator (11) is mounted on the engine (10) and is connected to the output shaft via a drive. The second generator (12) is mounted on the engine (10) and spaced apart from the first generator (11). The second generator (12) is selectively connected to the output shaft.

2. The vehicle-mounted power supply system according to claim 1, characterized in that, The output shaft is provided with a first pulley (13) and a second pulley (14). The first pulley (13) and the second pulley (14) rotate coaxially with the output shaft. The first pulley (13) is connected to the first generator (11) and the second pulley (14) is connected to the second generator (12). The second pulley (14) is selectively connected to the output shaft.

3. The vehicle-mounted power supply system according to claim 2, characterized in that, The engine (10) is provided with a clutch located between the output shaft and the second pulley (14), and the clutch is configured to selectively engage between the output shaft and the second pulley (14).

4. The vehicle-mounted power supply system according to claim 3, characterized in that, Also includes: A controller and a first switch are electrically connected, and the controller is electrically connected to the clutch. The controller is configured to control the clutch to disconnect the output shaft and the second pulley (14) when the first switch is triggered.

5. The vehicle-mounted power supply system according to claim 2, characterized in that, The diameter of the second pulley (14) is larger than the diameter of the first pulley (13).

6. The vehicle-mounted power supply system according to claim 2, characterized in that, The first generator (11) is provided with a third pulley, the second generator (12) is provided with a fourth pulley, a first belt (17) is provided between the first pulley (13) and the third pulley, and a second belt (18) is provided between the second pulley (14) and the fourth pulley.

7. The vehicle-mounted power supply system according to claim 1, characterized in that, Also includes: A controller and a second switch, the controller and the second switch being electrically connected, the controller being electrically connected to the engine (10), the controller being configured to increase the speed of the engine (10) when the second switch is triggered.

8. The vehicle-mounted power supply system according to claim 1, characterized in that, Also includes: The first bracket (15) is fixed on the engine (10), and the first generator (11) is mounted on the first bracket (15); as well as, The vehicle power supply system further includes: a second bracket (16), which is fixed on the engine (10), and a second generator (12) is mounted on the second bracket (16).

9. The vehicle-mounted power supply system according to claim 1, characterized in that, Also includes: The first battery (21) is electrically connected to the first generator (11), and the first battery (21) is used to supply power to the vehicle's own electrical equipment (23); The vehicle power supply system further includes a second battery (22), which is electrically connected to the second generator (12). The second battery (22) is used to supply power to the electrical equipment (24) installed in the vehicle.

10. A vehicle, characterized in that, include: The vehicle power supply system (100) according to any one of claims 1-9.

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