CN210591369U - Hybrid power system and vehicle - Google Patents

Hybrid power system and vehicle Download PDF

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Publication number
CN210591369U
CN210591369U CN201822186016.2U CN201822186016U CN210591369U CN 210591369 U CN210591369 U CN 210591369U CN 201822186016 U CN201822186016 U CN 201822186016U CN 210591369 U CN210591369 U CN 210591369U
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motor
vehicle
engine
clutch
battery
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于笃发
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BYD Co Ltd
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BYD Co Ltd
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Abstract

The utility model discloses a hybrid power system and a vehicle, wherein the hybrid power system comprises a first engine, a first speed reducer and a first motor, the first engine is connected with the first speed reducer, the first motor is connected with the first speed reducer, the hybrid power system further comprises a power generation module, the power generation module comprises a second engine and a second motor, the second motor is connected with the second engine, the first motor and the second motor are both connected with a battery, when the vehicle runs at low speed with low battery, the first engine does not work, the second engine is connected with the second motor, the second engine drives the second motor to generate power and charge the battery, and the first motor obtains electric power from the battery to drive the vehicle to run at a low speed, so that the smoothness of the vehicle is improved, and the driving experience is improved.

Description

Hybrid power system and vehicle
Technical Field
The utility model relates to a hybrid power system and vehicle.
Background
When the existing hybrid electric vehicle runs, when the battery power is high, the motor can be used as a driving machine to output torque together with the engine, when the battery power is low, the engine can drive the motor to generate power to supplement the power for the battery, but the engine drives the motor to generate power and is generally only adopted when the vehicle runs at a high speed, and when the vehicle runs at a low speed, the engine is not adopted to drive the motor to generate power because the speed is too low, if the battery power is too low, the motor cannot be used for driving, the low-speed smoothness of the vehicle is poor, and the driving experience is influenced.
Disclosure of Invention
The present invention aims at solving at least one of the technical problems in the above-mentioned technology to a certain extent. Therefore, an object of the utility model is to provide a hybrid system, this hybrid system vehicle ride comfort problem when can improving current hybrid vehicle low-speed low-power can improve and drive experience.
In order to achieve the above object, an embodiment of the present invention provides a hybrid system, including a first engine, a first reducer and a first motor, the first engine and the first reducer connection, the first motor and the first reducer connection, the hybrid system further includes a power generation module, the power generation module includes a second engine and a second motor, the second motor and the second engine connection, the first motor and the second motor are all connected with a battery.
According to the utility model discloses hybrid power system, first motor with the second motor is connected with the battery, when low-power low-speed traveles, first engine is out of work, the second engine with the second motor is connected, the second engine drives the second motor electricity generation and do the battery charges, first motor is followed the battery acquires electric drive vehicle low-speed and traveles to vehicle ride comfort when improving current hybrid vehicle low-speed low-power improves and drives and experience.
According to some embodiments of the invention, the hybrid system further comprises a first clutch and a gearbox, the first engine passes through the first clutch with the gearbox is connected, the gearbox with the first retarder connection.
According to some embodiments of the invention, the hybrid system further comprises a second clutch, the second engine passing through the second clutch with the second electric machine is connected.
According to some embodiments of the present invention, the hybrid system further comprises a third clutch and a second reducer, the second motor passing through the third clutch with the second reducer is connected.
According to some embodiments of the present invention, the second engine and the second clutch the second motor the third clutch the second reduction gear connects gradually.
According to some embodiments of the invention, the hybrid system further comprises a first DC/DC module, the first electric machine being connected to the battery through the first DC/DC module.
According to some embodiments of the invention, the hybrid system further comprises a second DC/DC module, the second electric machine being connected to the battery through the second DC/DC module.
To achieve the above object, another aspect of the present invention provides a vehicle including the above hybrid system.
The vehicle includes above-mentioned hybrid power system, wherein first motor with the second motor is connected with the battery, when low-power low-speed traveles, first engine is out of work, the second engine with the second motor is connected, the second engine drives the second motor electricity generation and for the battery charges, first motor is followed the battery acquires electric drive vehicle low-speed and traveles to vehicle ride comfort when improving current hybrid vehicle low-speed low-power improves and drives and experience.
According to some embodiments of the utility model, the vehicle still includes on-vehicle charger, on-vehicle charger and battery are connected.
Drawings
Fig. 1 is a schematic structural diagram of a hybrid power system according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of hybrid powertrain operating mode 1, according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of hybrid system mode 2 operation according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of hybrid system mode 3 operation according to an embodiment of the present invention;
FIG. 5 is a schematic illustration of hybrid system mode 4 operation according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of hybrid system mode 5 of operation according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present invention;
reference numerals: a first engine 1, a second engine 2, a first motor 3, a second motor 4, a first clutch 5, a second clutch 6, a third clutch 7, a gearbox 8, a first speed reducer 9, a second speed reducer 10, a second DC/DC module 12, a first DC/DC module 13, an on-board charger 15, a power generation module 16, a hybrid system 20, and a vehicle 30;
in the drawings: the dashed arrows indicate the direction of electrical energy flow and the solid arrows indicate the direction of mechanical energy flow.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
A hybrid system and a vehicle according to embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, according to some embodiments of the present invention, a hybrid system 20 is provided, including a first engine 1, a first speed reducer 9 and a first motor 3, the first engine 1 is connected to the first speed reducer 9, the first motor 3 is connected to the first speed reducer 9, the hybrid system 20 further includes a power generation module 16, the power generation module 16 includes a second engine 2 and a second motor 4, the second motor 4 is connected to the second engine 2, and the first motor 3 and the second motor 4 are both connected to a battery.
The hybrid system 20 further includes a first clutch 5 and a transmission 8, the first engine 1 is connected to the transmission 8 through the first clutch 5, and the transmission 8 is connected to the first speed reducer 9.
The second engine 2 drives the second motor 4 to generate power and can charge the battery under the condition that the normal running of the vehicle is not influenced, when the vehicle is at a low speed and has low electric quantity, the first engine 1 stops working, and the first motor 3 can obtain electric power from the battery to drive the vehicle independently, so that the smoothness of the vehicle at the low speed is ensured, the driving efficiency can be improved, and the fuel is saved; when the first clutch 5 is connected, the engine 1 drives the vehicle through the gearbox 8 and the first speed reducer 9, at this time, if the first motor 3 is in a power generation state, the engine 1 drives the first motor 3 to generate power, and if the first motor 3 is in a driving state, the first motor 3 and the first engine 1 drive the vehicle together; when the first clutch 5 is disengaged, the first electric machine 3 can obtain electric power from the battery to drive the vehicle.
The hybrid system 20 further includes a second clutch 6, and the second engine 2 is connected to the second electric machine 4 through the second clutch 6.
The hybrid system 20 further includes a third clutch 7 and a second speed reducer 10, and the second electric machine 4 is connected to the second speed reducer 10 through the third clutch 7.
The second engine 2 is connected to the second clutch 6, the second motor 4, the third clutch 7, and the second speed reducer 10 in this order.
Specifically, a second clutch 6 is installed between the second engine 2 and the second motor 4, and the second motor 4 is connected to the second speed reducer 10 through the third clutch 7, and when the second clutch 6 is disconnected and the third clutch 7 is connected, the second motor 4 can draw electric power from a battery to drive the vehicle; when the second clutch 6 is connected and the third clutch 7 is connected, the second engine 2 drives the second motor 4 to drive the vehicle; when the second clutch 6 is connected and the third clutch 7 is disconnected, the second engine 2 drives the second motor 4 to generate power.
The hybrid system 20 further includes a first DC/DC module 13, and the first electric machine 3 is connected to a battery through the first DC/DC module 13.
The hybrid system 20 further includes a second DC/DC module 12, and the second electric machine 4 is connected to the battery through the second DC/DC module 12.
The first DC/DC module 13 and the second DC/DC module 12 can raise/lower a voltage so that the motor connected thereto can smoothly obtain power from the battery or charge the battery, and the first DC/DC module 13 and the second DC/DC module 12 operate independently so that power can be obtained from the battery while charging the battery.
As shown in fig. 7, another embodiment of the present invention provides a vehicle 30, where the vehicle 30 includes the hybrid system 20.
The vehicle 30 includes the above hybrid power system 20, wherein the second engine 2 drives the second motor 4 to generate power and can charge the battery without affecting the normal running of the vehicle, when the vehicle runs at a low speed and has low power, the first engine 1 stops working, and the first motor 3 can obtain electric power from the battery to drive the vehicle alone, so as to ensure the smoothness of the vehicle at the low speed, improve the driving efficiency, and save fuel.
According to the utility model discloses a vehicle 30, vehicle 30 still includes on-vehicle charger 15, on-vehicle charger 15 and battery are connected.
The vehicle charger 15 can charge the battery using an external power source, and thus the vehicle 30 can be charged through the vehicle charger 15 using a charging pile or other charging facilities when the vehicle is not in use.
In different situations, the hybrid system 20 of the vehicle 30 has different operating modes.
Specifically, as shown in fig. 2, the second clutch 7 is connected, the second motor 4 and the first motor 3 acquire electric quantity from a battery, the second motor 4 drives the vehicle 30 together with the first motor 3 through the second clutch 7 and the second speed reducer, and the vehicle 30 is in a pure electric drive mode, so that energy can be effectively saved, and driving experience is improved.
Specifically, as shown in fig. 3, the second clutch 7 is connected, the second electric machine 4 and the first electric machine 3 draw electric power from the battery, the second electric machine 4 transmits power through the second clutch 7 and the second speed reducer to drive the vehicle 30, the first clutch 5 is connected, the first engine 1 transmits power through the first clutch, the gearbox 8 and the first speed reducer 9 to drive the vehicle 30, the first electric machine 3 transmits power through the first speed reducer 9 to drive the vehicle 30, the first engine 1, the first electric machine 3 and the second electric machine 4 drive the vehicle 30 together, and the vehicle 30 is in a hybrid driving mode, so that the vehicle 30 can obtain more driving force and improve vehicle performance.
Specifically, as shown in fig. 4, the first clutch 5 is connected, the first engine 1 drives the vehicle 30 through the transmission 8 and the first reducer 9, the reducer 9 drives the first motor 3 to generate power and charge the battery, and the vehicle 30 can charge the battery while traveling at high speed, thereby effectively saving energy.
Specifically, as shown in fig. 5, the second clutch 6 is connected, the third clutch 7 is disconnected, the second engine 2 drives the second motor 4 to generate power and charge a battery, the first motor 3 obtains power from the battery and drives the vehicle 30 by transmitting power through the first speed reducer 9, at this time, the first clutch 5 is disconnected, and the first engine 1 does not work, so that vehicle smoothness and driving experience are improved when the existing hybrid vehicle is at a low speed and at a low power.
Specifically, as shown in fig. 6, when the vehicle 30 is braked, the third clutch 7 is engaged, the first clutch 5 and the second clutch 6 are disengaged, the second motor 4 generates power under the drive of the second reduction gear 10, and the first motor 3 generates power under the drive of the first reduction gear 9, so that the energy of the vehicle 30 at the time of braking is fully utilized, and a large energy saving is achieved.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (9)

1. A hybrid powertrain system (20) comprising a first engine (1), a first speed reducer (9) and a first electric machine (3), the first engine (1) and the first speed reducer (9) being connected, the first electric machine (3) and the first speed reducer (9) being connected, characterized in that: the hybrid power system (20) further comprises a power generation module (16), wherein the power generation module (16) comprises a second engine (2) and a second motor (4), the second motor (4) is connected with the second engine (2), and the first motor (3) and the second motor (4) are both connected with a battery.
2. The hybrid system (20) of claim 1, wherein: the hybrid power system (20) further comprises a first clutch (5) and a gearbox (8), the first engine (1) is connected with the gearbox (8) through the first clutch (5), and the gearbox (8) is connected with the first speed reducer (9).
3. The hybrid system (20) of claim 1, wherein: the hybrid power system (20) further comprises a second clutch (6), and the second engine (2) is connected with the second motor (4) through the second clutch (6).
4. The hybrid system (20) of claim 3, wherein: the hybrid power system (20) further comprises a third clutch (7) and a second speed reducer (10), and the second motor (4) is connected with the second speed reducer (10) through the third clutch (7).
5. The hybrid system (20) of claim 4, wherein: the second engine (2) is sequentially connected with the second clutch (6), the second motor (4), the third clutch (7) and the second speed reducer (10).
6. The hybrid system (20) of claim 1, wherein: the hybrid system (20) further comprises a first DC/DC module (13), the first electric machine (3) being connected to a battery via the first DC/DC module (13).
7. The hybrid system (20) of claim 1, wherein: the hybrid system (20) further comprises a second DC/DC module (12), the second electric machine (4) being connected to a battery via the second DC/DC module (12).
8. A vehicle (30), characterized in that: comprising a hybrid system (20) according to any of claims 1-7.
9. The vehicle (30) of claim 8, wherein: the vehicle (30) further comprises an on-board charger (15), the on-board charger (15) being connected to a battery.
CN201822186016.2U 2018-12-25 2018-12-25 Hybrid power system and vehicle Active CN210591369U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113103857A (en) * 2020-10-13 2021-07-13 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle
CN113103859A (en) * 2020-10-13 2021-07-13 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113103857A (en) * 2020-10-13 2021-07-13 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle
CN113103859A (en) * 2020-10-13 2021-07-13 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle
CN113103857B (en) * 2020-10-13 2023-01-10 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle
CN113103859B (en) * 2020-10-13 2023-01-10 东风越野车有限公司 Hybrid vehicle frame, power system and vehicle

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