Automobile power coupling system

Abstract

The utility model discloses an automobile power coupling system, which comprises a storage battery, the first motor is connected with the storage battery; a super capacitor; the inverter is connected with the super capacitor; the second motor is connected with the inverter; and the double-input coupling drive axle is connected with an output shaft of the first motor and an output shaft of the second motor, and an output shaft of the double-input coupling drive axle is connected with the gearbox. Power is supplied to the first motor through the storage battery, driving power is provided for the gearbox through the double-input coupling drive axle, power is supplied to the second motor through the super capacitor under the condition of insufficient power, auxiliary power is provided for the gearbox through the double-input coupling drive axle, and the problem of insufficient power can be solved. In the braking process, motor braking torque is provided for the second motor, and electric energy fed back by braking of the second motor is absorbed by the super capacitor, so that the storage battery does not need to be charged and discharged frequently, the service life of the storage battery is prolonged, and meanwhile, the power of the automobile can be complemented and enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile power systems, in particular to an automobile power coupling system. Background Art

[0002] The electric vehicle industry has experienced rapid growth due to its pollution-free, quiet, and energy-efficient features. However, the lifespan of electric vehicle batteries has become a major obstacle hindering their development. High current charging and discharging significantly impacts battery lifespan, while repeated charging and discharging, as well as kinetic energy recovery during braking, can easily shorten battery lifespan and reduce vehicle range. Utility Model Content

[0003] The utility model provides an automobile power coupling system, aiming to at least solve one of the technical problems existing in the prior art.

[0004] The technical solution of the utility model relates to an automobile power coupling system, comprising:

[0005] batteries;

[0006] a first motor connected to the battery;

[0007] Supercapacitors;

[0008] an inverter connected to the supercapacitor;

[0009] a second motor connected to the inverter;

[0010] A dual-input coupled drive axle is connected to the output shaft of the first motor and the output shaft of the second motor respectively, and the output shaft of the dual-input coupled drive axle is connected to a gearbox.

[0011] According to some embodiments of the present invention, a converter is further included, wherein the converter connects the battery and the supercapacitor.

[0012] According to some embodiments of the present invention, the inverter is configured as a bidirectional inverter.

[0013] According to some embodiments of the present invention, an engine is further included, the battery is connected to the engine, and the engine is connected to the gearbox.

[0014] According to some embodiments of the present invention, a heat circulation pipeline assembly is further included. The heat circulation pipeline assembly is provided between the engine and the battery, and the heat circulation pipeline assembly is used to heat the battery.

[0015] According to some embodiments of the present invention, the heat circulation pipeline assembly includes an outlet pipe, a heating pipe and a heat recovery pipe, the outlet pipe connects the first exhaust end of the engine and the heating pipe, the heating pipe is arranged in the battery, and the heat recovery pipe connects the heating pipe and the intake pipe of the engine.

[0016] According to some embodiments of the present invention, a low-temperature on-off valve is provided on the air outlet pipe.

[0017] According to some embodiments of the present invention, an exhaust gas recirculation valve is provided on the heat recovery pipe.

[0018] According to some embodiments of the present invention, the engine is connected to a fuel tank, the engine is an ignition internal combustion engine, and the fuel in the fuel tank is gasoline.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. During the starting process of the car, the battery supplies power to the first motor, which in turn provides driving power to the gearbox via a dual-input coupled drive axle. In the case of insufficient power, the supercapacitor supplies power to the second motor, which in turn provides auxiliary power to the gearbox via a dual-input coupled drive axle, thereby making up for the problem of insufficient power. During braking, the supercapacitor provides motor torque to the second motor, and the electric energy fed back by the braking of the second motor is absorbed by the supercapacitor, eliminating the need for frequent charging and discharging of the battery, thereby extending the battery life and supplementing and strengthening the power of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a system diagram of an automobile power coupling system according to an embodiment of the present utility model.

[0022] Figure Number:

[0023] Battery 100, converter 110;

[0024] a first motor 200;

[0025] Supercapacitor 300;

[0026] Inverter 400;

[0027] a second motor 500;

[0028] Dual input coupled drive axle 600;

[0029] Gearbox 700;

[0030] Engine 800, fuel tank 810;

[0031] Heat circulation pipeline assembly 900 , air outlet pipe 910 , heating pipe 920 , heat recovery pipe 930 , low-temperature on-off valve 940 , exhaust gas recirculation valve 950 . DETAILED DESCRIPTION

[0032] The following content will describe several embodiments of the present invention, including embodiments corresponding to the accompanying drawings. It can be understood that the accompanying drawings are used to assist in understanding the technical features and technical solutions of the present invention, and should not be understood as limiting the scope of protection of the present invention.

[0033] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict.

[0034] It should be noted that, unless otherwise clearly defined, when a feature is referred to as "fixed", "connected", "installed" or "set" on another feature, it can be directly "fixed", "connected", "installed" or "set" on the other feature, or it can be indirectly "fixed", "connected", "installed" or "set" on the other feature. The words "fixed", "connected", "installed" or "set" should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meaning of the above words in this utility model in combination with the specific content of the technical solution.

[0035] It should be noted that the descriptions of the directions or positional relationships indicated by up, down, left, right, top, bottom, front, back, inside, and outside used in the present invention are based on the directions or positional relationships in the drawings or embodiments, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it cannot be understood as a limitation on the present invention.

[0036] It should be noted that the term "and / or" used in the present invention includes any combination of one or more related listed items, "above", "below", "within", etc. are understood to include the number itself.

[0037] It should be noted that if the first and second are described in this utility model, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] It should be noted that, unless otherwise expressly defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art. The terms used in this specification are only for describing specific embodiments and are not intended to limit the present invention.

[0039] Reference Figure 1 The technical solution of the present utility model relates to an automobile power coupling system, including: a battery 100; a first motor 200, connected to the battery 100; a supercapacitor 300; an inverter 400, connected to the supercapacitor 300; a second motor 500, connected to the inverter 400; a dual-input coupling drive bridge 600, respectively connected to the output shaft of the first motor 200 and the output shaft of the second motor 500, and the output shaft of the dual-input coupling drive bridge 600 is connected to a gearbox 700.

[0040] It should be noted that in this embodiment, the supercapacitor 300 is a double-layer capacitor. The capacity of the double-layer capacitor is large, and its charging and discharging process does not involve any material changes. Therefore, it has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and green environmental protection. The double-layer capacitor can be used to assist the vehicle power, so that the vehicle has more power during driving, climbing, etc., and can make up for the lack of battery power in some environments. At the same time, it can also absorb the braking feedback energy to avoid frequent charging and discharging of the battery 100. The battery 100 is set to a lithium battery.

[0041] The above-mentioned automobile power coupling system can also ensure that when the battery 100 or the supercapacitor 300 fails, the other one can independently supply power to maintain part of the power of the automobile, so that the automobile can respond to some emergency situations.

[0042] The application of the above-mentioned automobile power coupling system has at least the following beneficial effects: during the process of starting the car, the first motor 200 is powered by the battery 100, and the first motor 200 provides driving power to the gearbox 700 via the dual-input coupling drive axle 600. In the case of insufficient power, the second motor 500 is powered by the supercapacitor 300, and the second motor 500 provides auxiliary power to the gearbox 700 via the dual-input coupling drive axle 600, which can make up for the problem of insufficient power. During braking, the second motor 500 is provided with motor torque, and the electric energy fed back by the braking of the second motor 500 is absorbed by the supercapacitor 300, so that the battery 100 does not need to be frequently charged and discharged, thereby extending the life of the battery 100 and also supplementing and strengthening the power of the car.

[0043] According to some embodiments of the present invention, referring to Figure 1, also includes a converter 110, which connects the battery 100 and the supercapacitor 300. When the amount of electricity stored in the supercapacitor 300 is lower than a certain value, the supercapacitor 300 can be charged by the battery 100 via the converter 110 to ensure the normal operation of the supercapacitor 300.

[0044] According to some embodiments of the present invention, referring to Figure 1 , the inverter 400 is set to a bidirectional inverter 400.

[0045] According to some embodiments of the present invention, referring to Figure 1 , also includes an engine 800, a battery 100 connected to the engine 800, the engine 800 is connected to the gearbox 700, and also includes a heat circulation pipeline assembly 900, the heat circulation pipeline assembly 900 is arranged between the engine 800 and the battery 100, and the heat circulation pipeline assembly 900 is used to heat the battery 100 to ensure that the battery 100 can work normally in a low temperature environment while ensuring the endurance of the battery 100, avoiding the low temperature causing the endurance of the battery 100 to be weakened and the cruising range to be reduced.

[0046] According to some embodiments of the present invention, referring to Figure 1 The heat circulation pipe assembly 900 includes an outlet pipe 910, a heating pipe 920, and a heat recovery pipe 930. The outlet pipe 910 connects the first exhaust end of the engine 800 and the heating pipe 920. The heating pipe 920 is provided in the battery 100. The heat recovery pipe 930 connects the heating pipe 920 and the intake pipe of the engine 800. The outlet pipe 910 is provided with a low-temperature on-off valve 940, and the heat recovery pipe 930 is provided with an exhaust gas recirculation valve 950. Figure 1 The heat cycle pipe assembly 900 includes an outlet pipe 910, a heating pipe 920 and a heat recovery pipe 930. The outlet pipe 910 is connected to the first exhaust end of the engine 800 and the heating pipe 920. The heating pipe 920 is arranged in the battery 100. The heat recovery pipe 930 is connected to the heating pipe 920 and the intake pipe of the engine 800. A low-temperature on-off valve 940 is provided on the outlet pipe 910, and an exhaust gas recirculation valve 850 is provided on the heat recovery pipe 930. In a low-temperature environment, the battery 100 starts to heat up slowly to the normal operating temperature. At this time, the power generated by the battery 100 will be When the engine 800 is started, it generates a large amount of heat energy. After the low-temperature on-off valve 940 is opened, part of the heat energy enters the exhaust pipe 910 and then enters the heating pipe 920 from the exhaust pipe 910, heating the battery 100 and allowing the battery 100 to quickly heat up to the temperature under normal operating conditions. This part of the low-temperature heat energy then passes through the exhaust gas recirculation valve 950 and re-enters the engine 800, where it mixes with the heat energy of the engine 800, thereby further preventing the temperature inside the engine 800 from being too high and damaging the engine, thereby affecting the life of the engine.

[0047] According to some embodiments of the present invention, referring to Figure 1 The engine 800 is connected to a fuel tank 810 . The engine 800 is an ignition type internal combustion engine, and the fuel in the fuel tank 810 is gasoline.

[0048] It should be noted that in this specification, terms such as "one embodiment", "some embodiments", "basic embodiment", "extended embodiment" may be used to describe several embodiments of the present utility model. The specific features, structures, materials or characteristics in several embodiments may be combined in accordance with the principles and purposes of the present utility model.

[0049] Although some embodiments of the present invention have been shown and described in this specification, the present invention should not be limited to the above embodiments. As long as the technical effects of the present invention are achieved by the same or equivalent means, any changes, modifications, equivalent substitutions and equivalent variations to these embodiments within the spirit and principles of the present disclosure and without departing from the principles and purpose of the present invention should be included in the scope of protection of the present disclosure and should be deemed to fall within the scope of protection of the present invention.

Claims

1. An automobile power coupling system, characterized in that: include: batteries; a first motor connected to the battery; Supercapacitors; an inverter connected to the supercapacitor; a second motor connected to the inverter; A dual-input coupled drive axle is connected to the output shaft of the first motor and the output shaft of the second motor respectively, and the output shaft of the dual-input coupled drive axle is connected to a gearbox.

2. The vehicle power coupling system according to claim 1, characterized in that: A converter is also included, which connects the battery and the supercapacitor.

3. The vehicle power coupling system according to claim 1, characterized in that: The inverter is configured as a bidirectional inverter.

4. The vehicle power coupling system according to claim 1, characterized in that: An engine is also included, the battery is connected to the engine, and the engine is connected to the gearbox.

5. The vehicle power coupling system according to claim 4, characterized in that: It also includes a heat circulation pipeline assembly, which is arranged between the engine and the battery and is used to heat the battery.

6. The vehicle power coupling system according to claim 5, characterized in that: The heat circulation pipeline assembly includes an outlet pipe, a heating pipe and a heat recovery pipe. The outlet pipe is connected to the first exhaust end of the engine and the heating pipe. The heating pipe is arranged in the battery. The heat recovery pipe is connected to the heating pipe and the intake pipe of the engine.

7. The vehicle power coupling system according to claim 6, characterized in that: The air outlet pipe is provided with a low-temperature on-off valve.

8. The vehicle power coupling system according to claim 6, characterized in that: An exhaust gas recirculation valve is provided on the heat recovery pipe.

9. The vehicle power coupling system according to claim 4, characterized in that: The engine is connected to a fuel tank, the engine is an ignition type internal combustion engine, and the fuel in the fuel tank is gasoline.

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