CN108501681B - low-temperature cold start device, low-temperature cold start method and automobile - Google Patents
low-temperature cold start device, low-temperature cold start method and automobile Download PDFInfo
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- CN108501681B CN108501681B CN201810257676.7A CN201810257676A CN108501681B CN 108501681 B CN108501681 B CN 108501681B CN 201810257676 A CN201810257676 A CN 201810257676A CN 108501681 B CN108501681 B CN 108501681B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
- B60K6/10—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel
- B60K6/105—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable mechanical accumulator, e.g. flywheel the accumulator being a flywheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangements or mounting of propulsion unit control devices in vehicles
- B60K26/02—Arrangements or mounting of propulsion unit control devices in vehicles of initiating means or elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The invention discloses a low-temperature cold starting device, a low-temperature cold starting method and an automobile, relates to the technical field of automobiles, and is designed for solving the problems that the existing low-temperature cold starting scheme of a 48V hybrid electric vehicle occupies a large space and is high in setting cost. The low-temperature cold starting device comprises a flywheel and a first clutch, wherein the flywheel and the first clutch are both arranged between an engine and a motor, the flywheel can be driven by the motor to rotate, and the first clutch is used for controlling the power transmission of the flywheel to the engine; the flywheel comprises a wheel disc, a plurality of mass blocks distributed along the circumferential direction of the wheel disc and a driving module used for driving the mass blocks to move, and the mass blocks can radially move along the radial direction of the wheel disc. The automobile comprises the low-temperature cold starting device. The low-temperature cold starting method utilizes the low-temperature cold starting device to realize the cold starting of the automobile in a low-temperature environment. The low-temperature cold starting device, the low-temperature cold starting method and the automobile are used for realizing cold starting of the automobile in a low-temperature environment.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a low-temperature cold starting device, a low-temperature cold starting method and an automobile.
Background
With the increasingly appearing world energy problems, energy conservation and environmental protection become important directions for the development of the automobile industry, and as a new-generation clean automobile with low oil consumption and low pollution, a hybrid electric vehicle gradually moves to the world stage and is widely concerned by the industry people and expert scholars. The 48V hybrid electric vehicle can achieve the purposes of emission reduction and fuel saving through functions of acceleration assistance, energy recovery, start-stop, sliding and the like, can achieve stable energy supply and improve driving stability through functions of improving power and energy storage, assisting parking, electronic cruise, electric driving and the like, and has wide market prospect.
However, 48V batteries have severe performance degradation in low temperature environments and low charge and discharge power, and need to use a conventional starter to start in cold environments (e.g., temperatures below-25 ℃). However, since the conventional starter can only start the engine at a low temperature, the starter is redundant for a 48V hybrid electric vehicle, not only can increase the weight of the whole vehicle, but also can occupy limited space in the vehicle, and has high cost.
Disclosure of Invention
The invention aims to provide a low-temperature cold starting device to solve the technical problems that an existing low-temperature cold starting scheme of a 48V hybrid electric vehicle occupies a large space and is high in setting cost.
The invention provides a low-temperature cold starting device which comprises a flywheel and a first clutch, wherein the flywheel and the first clutch are both arranged between an engine and a motor, the flywheel can be driven by the motor to rotate, and the first clutch is used for controlling the power transmission of the flywheel to the engine.
the flywheel comprises a wheel disc, a plurality of mass blocks distributed along the circumferential direction of the wheel disc and a driving module used for driving the mass blocks to move, and the mass blocks can radially move along the radial direction of the wheel disc.
Furthermore, the driving module comprises an electromagnetic element arranged in the center of the wheel disc and elastic elements respectively connected with the mass blocks, and each elastic element is fixedly connected with the wheel disc.
the electromagnetic element can enable the mass blocks to move towards the center of the wheel disc after being electrified, and can release the mass blocks after being powered off.
Further, the elastic element comprises a spring.
further, the electromagnetic element includes an electromagnet.
Further, the flywheel further comprises a plurality of slide ways, each slide way is arranged along the radial direction of the wheel disc and corresponds to each mass block respectively, and the slide ways are used for guiding each mass block to radially move along the radial direction of the wheel disc.
Furthermore, the mass blocks are annularly and uniformly distributed along the circumferential direction of the wheel disc.
Further, the mass block is a spherical body.
The low-temperature cold starting device has the beneficial effects that:
the flywheel and the first clutch are arranged between the engine and the motor, wherein the flywheel can be driven by the motor to rotate, and the first clutch is used for controlling the power transmission of the flywheel to the engine. The flywheel comprises a plurality of wheel discs, mass blocks and driving modules, wherein the mass blocks are distributed along the circumferential direction of the wheel discs, and the driving modules are used for driving the mass blocks to move along the radial radiation of the wheel discs.
The working principle of the low-temperature cold starting device is as follows: when the cold start of the automobile in a low-temperature environment needs to be realized, the motor is started to drive the flywheel to rotate; meanwhile, the driving module works to enable each mass block to move to the outline edge of the mass block along the radial direction of the wheel disc, and at the moment, the flywheel is in an energy storage state; when the energy is stored enough to drive the engine to start, the first clutch is closed, and the energy stored in the flywheel is rapidly released to start the engine. When the automobile is in a normal running state, the driving module works to enable the mass blocks to move towards the center of the wheel disc along the radial direction, so that the mass of the mass blocks is concentrated, the rotational inertia of the flywheel is reduced, and redundant energy consumption in the running process of the automobile is avoided.
According to the low-temperature cold starting device, the flywheel which is in clutch connection with the engine is arranged, and in a clutch state, the motor only needs to drive the flywheel to rotate, so that the flywheel can store a large amount of energy in a short time, and the energy storage efficiency of the flywheel is greatly improved; under the connected state, the flywheel can release the stored energy rapidly to start the engine, and the starting efficiency is high. And the driving module is arranged in the flywheel to drive the mass blocks to radially move along the wheel disc, the aim of storing energy is achieved by utilizing the outward movement of the mass blocks, and the load in the driving process of the vehicle is reduced by utilizing the inward movement of the mass blocks so as to achieve the optimal driving state of the vehicle.
In addition, the low-temperature cold starting device can realize cold starting of the engine in a low-temperature environment only by utilizing a 48V power system of the automobile, a starter is not required to be additionally arranged, the structure is simple, the scheme is easy to realize, the development period is short, the manufacturing cost is greatly reduced, and the low-temperature cold starting device has higher market economic value.
the second objective of the present invention is to provide an automobile, so as to solve the technical problems of large occupied space and high installation cost of the existing low-temperature cold start scheme of the 48V hybrid electric vehicle.
The automobile provided by the invention comprises an engine, a motor, a gearbox and the low-temperature cold starting device.
The motor is arranged between the engine and the gearbox, and a second clutch is arranged between the engine and the gearbox and used for controlling the power transmission from the engine to the gearbox.
The motor and the first clutch are connected with a vehicle control unit of the vehicle.
The beneficial effects brought by the automobile of the invention are as follows:
By arranging the low-temperature cold starting device in the automobile, correspondingly, the automobile has all the advantages of the low-temperature cold starting device, and the detailed description is omitted.
In addition, when the cold start of the automobile in a low-temperature environment needs to be realized, the cold start of the engine can be realized by sending a corresponding instruction to the vehicle controller of the automobile, and the automation degree is high.
The third purpose of the invention is to provide a low-temperature cold start method, so as to solve the technical problems that the existing low-temperature cold start scheme of the 48V hybrid electric vehicle occupies a large space and has high setting cost.
the invention provides a low-temperature cold start method, which realizes the cold start of an automobile in a low-temperature environment by using the low-temperature cold start device, and comprises the following steps:
S20: disconnecting the first clutch and the second clutch;
S30: starting a motor to drive a flywheel to rotate;
S40: and closing the first clutch to enable the flywheel to release energy to drive the engine to work.
Further, step S40 is preceded by detecting the energy stored in the flywheel by a detection module, and the first clutch is closed when the detection module detects that the energy stored in the flywheel is sufficient to start the engine.
The low-temperature cold start method has the beneficial effects that:
when the cold start of the engine in a low-temperature environment is needed, the high-efficiency storage and the quick release of the energy of the flywheel can be realized by controlling the opening and the closing of the first clutch, so that the purpose of starting the engine is achieved. The low-temperature cold start method is simple in control strategy and easy to implement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
fig. 1 is a schematic layout of a low-temperature cold start device in an automobile according to an embodiment of the present invention, wherein solid lines represent mechanical connections and dashed lines represent electrical connections;
FIG. 2 is a schematic front view of a flywheel in the low temperature cold start apparatus according to the embodiment of the present invention;
FIG. 3 is a schematic front view of another flywheel of the low temperature cold start apparatus according to the embodiment of the present invention;
Fig. 4 is a schematic diagram of a working process of implementing low-temperature cold start of an automobile by using the low-temperature cold start method according to the embodiment of the invention.
Icon: 100-an engine; 200-a flywheel; 300-a gearbox; 400-motor; 500-a battery module; 600-a first clutch; 700-a second clutch; 800-main reducer; 900-wheel; 210-a wheel disc; 220-a spring; 230-a mass; 240-an electromagnetic element; 250-baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will clearly and completely describe the technical solutions of the present invention with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected," "mounted," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present embodiment provides a cold start apparatus at low temperature, comprising a flywheel 200 and a first clutch 600 both disposed between an engine 100 and a motor 400, wherein the flywheel 200 can be driven by the motor 400 to rotate, and the first clutch 600 is used for controlling the power transmission of the flywheel 200 to the engine 100. Specifically, as shown in fig. 2, the flywheel 200 includes a wheel disc 210, a plurality of masses 230 distributed along a circumferential direction of the wheel disc 210, and a driving module for driving the masses 230 to move, wherein each mass 230 can radially move along a radial direction of the wheel disc 210.
The working principle of the low-temperature cold starting device is as follows: when the cold start of the automobile in a low-temperature environment needs to be realized, the motor 400 is started to drive the flywheel 200 to rotate; meanwhile, the driving module works to make each mass block 230 move to the contour edge along the radial direction of the wheel disc 210, and at the moment, the flywheel 200 is in an energy storage state; when the energy is stored enough to drive the engine 100 to start, the first clutch 600 is closed, and the energy stored in the flywheel 200 is rapidly released, so that the engine 100 is started. When the automobile is in a normal driving state, the driving module works to enable each mass block 230 to move towards the center of the wheel disc 210 along the radial direction, so that the mass of each mass block 230 is concentrated, the rotational inertia of the flywheel 200 is reduced, and redundant energy consumption in the driving process of the automobile is avoided.
According to the low-temperature cold starting device, the flywheel 200 in clutch connection with the engine 100 is arranged, and in a clutch state, the motor 400 only needs to drive the flywheel 200 to rotate, so that the flywheel 200 can store a large amount of energy in a short time, and the energy storage efficiency of the flywheel 200 is greatly improved; in the connected state, the flywheel 200 can quickly release the stored energy to start the engine 100, and the starting efficiency is high. Moreover, the flywheel 200 is provided with a driving module to drive each mass block 230 to radially move along the wheel disc 210, the outward movement of each mass block 230 is utilized to realize the purpose of energy storage, and the inward movement of each mass block 230 is utilized to reduce the load in the driving process of the vehicle, so as to achieve the optimal driving state of the vehicle.
in addition, the low-temperature cold starting device can realize cold starting of the engine 100 in a low-temperature environment only by utilizing a 48V power system of the automobile, a starter is not required to be additionally arranged, the structure is simple, the scheme is easy to realize, the development period is short, the manufacturing cost is greatly reduced, and the low-temperature cold starting device has higher market economic value.
Referring to fig. 2, in the present embodiment, the driving module may include an electromagnetic element 240 disposed in the center of the wheel disc 210 and elastic elements respectively connected to the mass blocks 230, and each elastic element is fixedly connected to the wheel disc 210. The electromagnetic element 240 can move each mass block 230 toward the center of the disk 210 when it is powered on, and can release each mass block 230 when it is powered off.
specifically, in the present embodiment, the elastic element may be a spring 220.
The low-temperature cold starting device utilizes the springs 220 to install the mass blocks 230 on the wheel disc 210, when the flywheel 200 rotates, each mass block 230 moves to the outline edge of the wheel disc 210 under the action of centrifugal force, and each spring 220 arranged corresponding to the mass block is compressed to finish energy storage. After the cold start is completed, the automobile is in a driving state, the electromagnetic element 240 works to attract each mass block 230 to the center position of the wheel disc 210, so that the redundant energy consumption in the driving process of the automobile is reduced. During the process that each mass block 230 moves towards the center of the wheel disc 210, each mass block 230 is simultaneously subjected to the elastic force from each spring 220 to further drive each mass block 230 to move towards the center of the wheel disc 210, so that the mass concentration of each mass block 230 is ensured.
Due to the arrangement, the structure of the driving module is greatly simplified, and the energy storage cost of the flywheel 200 is reduced, so that the implementation cost of the low-temperature cold starting device is reduced.
specifically, in the present embodiment, the electromagnetic element 240 includes an electromagnet.
As shown in fig. 3, in this embodiment, the flywheel 200 may further include a plurality of slide ways, each of which is disposed along a radial direction of the wheel disc 210 and corresponds to each of the masses 230, respectively, for guiding each of the masses 230 to move radially along the radial direction of the wheel disc 210.
Due to the arrangement, the mass block 230 is effectively prevented from deviating, so that the mass block can stably move towards the edge of the wheel disc 210 and the center of the wheel disc 210 along the radial direction, the energy storage efficiency is improved, and the working reliability of the low-temperature cold starting device is further ensured.
Referring to fig. 3, in the present embodiment, the flywheel 200 further includes a plurality of sets of baffles 250 disposed in parallel and opposite to each other, each baffle 250 is fixedly disposed on the wheel disc 210, and each set of baffles 250 forms a slideway for guiding the mass block 230.
By the arrangement, effective guidance of the quality block 230 is realized, and the device is simple in structure and low in cost.
in addition, in this embodiment, the flywheel 200 may further include a limiting plate (not shown) for limiting the mass block 230. Specifically, a stop plate is fixed to each set of baffles 250 to form a closed slide with each set of baffles 250 for guiding the mass 230. Due to the arrangement of the limiting plate, the mass block 230 can stably attach to the surface of the wheel disc 210 to move, and the movement path is better, so that the purpose of efficient energy storage of the flywheel 200 is further achieved.
With continued reference to fig. 2 and 3, in the present embodiment, the masses 230 are annularly distributed along the circumference of the disk 210. Due to the arrangement, the energy distribution in the energy storage process of the wheel disc 210 is uniform, the phenomenon of uneven mass distribution caused by unbalance loading is avoided to a certain extent, and the reliability of power transmission from the flywheel 200 to the engine 100 is ensured.
In addition, in this embodiment, the mass block 230 may be a spherical body. Due to the arrangement, the contact area between the mass block 230 and the wheel disc 210 is reduced, so that the contact friction force between the mass block 230 and the wheel disc 210 in the rotation process of the flywheel 200 is greatly reduced, the collision between the mass block 230 and the wheel disc 210 is reduced, the energy consumption in the energy storage process of the flywheel 200 is further reduced, and the energy storage efficiency is improved.
The embodiment also provides an automobile which comprises the engine 100, the motor 400, the gearbox 300 and the low-temperature cold starting device.
Referring to fig. 1, specifically, the motor 400 is disposed between the engine 100 and the transmission case 300, and a second clutch 700 is disposed between the engine 100 and the transmission case 300, wherein the second clutch 700 is used for controlling power transmission from the engine 100 to the transmission case 300, and both the motor 400 and the first clutch 600 are connected to a vehicle controller (not shown) of the vehicle.
Accordingly, the vehicle has all the advantages of the low-temperature cold start device, and the details are not repeated herein.
In addition, when the cold start of the vehicle in a low-temperature environment needs to be realized, the cold start of the engine 100 can be realized by sending a corresponding instruction to a vehicle controller of the vehicle, and the degree of automation is high.
the low-temperature cold start process of the automobile comprises the following steps: sending a starting instruction to the vehicle controller, disconnecting the first clutch 600 and the second clutch 700, and simultaneously, supplying power to the motor 400 by the battery module 500 to enable the motor 400 to drive the flywheel 200 to rotate so as to complete energy storage of the flywheel 200; when the flywheel 200 stores enough energy, the vehicle control unit controls the first clutch 600 to be closed, and the flywheel 200 releases the stored energy to drive the engine 100 to work; when the rotating speed of the engine 100 is balanced with the rotating speed of the flywheel 200, the vehicle controller controls the second clutch 700 to be closed, so that cold start of the vehicle in a low-temperature environment is realized. Subsequently, the transmission case 300 operates to drive the main reducer 800 to operate, so as to drive the wheels 900, and the automobile enters a normal driving state.
In this embodiment, a detection module may be further disposed on the vehicle to determine the energy value stored in the flywheel 200. When the detection module detects that the energy stored in the flywheel 200 is enough to start the engine 100, a command is sent to the vehicle control unit to control the first clutch 600 to be closed.
In the present embodiment, the vehicle is a 48V hybrid vehicle, the motor 400 is a motor in a 48V power system, and the battery module 500 is a 48V battery.
As shown in fig. 4, the embodiment further provides a low-temperature cold start method, which uses the low-temperature cold start apparatus to realize cold start of an automobile in a low-temperature environment, and includes the following steps:
s20: disconnect the first clutch 600 and the second clutch 700;
S30: starting the motor 400 to drive the flywheel 200 to rotate;
S40: the first clutch 600 is closed to release the energy from the flywheel 200 and drive the engine 100 to work.
When the engine 100 needs to be started in a cold environment, the energy of the flywheel 200 can be efficiently stored and quickly released by controlling the opening and closing of the first clutch 600, so that the engine 100 is started. The low-temperature cold start method is simple in control strategy and easy to implement.
In this embodiment, step S20 may further include step S10 before step S10: and sending a starting signal to the vehicle control unit, as shown in fig. 4.
In addition, in this embodiment, step S40 may be preceded by detecting the energy stored in the flywheel 200 by a detection module, and when the detection module detects that the energy stored in the flywheel 200 is sufficient to start the engine 100, the first clutch 600 is closed. The parameter for determining whether the energy of the flywheel 200 is stored enough may be the rotation speed of the flywheel 200.
After the engine 100 is started, step S50 is executed: and closing the second clutch 700, and realizing the low-temperature cold start process of the automobile by utilizing the power transmission from the engine 100 to the gearbox 300.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A cold start device at low temperature is characterized by comprising a flywheel (200) and a first clutch (600) which are arranged between an engine (100) and a motor (400), wherein the flywheel (200) can be driven by the motor (400) to rotate, and the first clutch (600) is used for controlling the power transmission of the flywheel (200) to the engine (100);
the flywheel (200) comprises a wheel disc (210), a plurality of masses (230) distributed along the circumferential direction of the wheel disc (210) and a driving module for driving the masses (230) to move, wherein each mass (230) can radially move along the radial direction of the wheel disc (210);
The driving module comprises an electromagnetic element (240) arranged in the center of the wheel disc (210) and elastic elements respectively connected with the mass blocks (230), and each elastic element is fixedly connected with the wheel disc (210);
The electromagnetic element (240) can enable each mass block (230) to move towards the center of the wheel disc (210) after being electrified, and can release each mass block (230) after being electrified.
2. cold start device according to claim 1, characterized in that the elastic element comprises a spring (220).
3. A cold start device according to claim 1, wherein said electromagnetic element (240) comprises an electromagnet.
4. The cold start device according to claim 1, wherein the flywheel (200) further comprises a plurality of slide ways, each of the slide ways is arranged along a radial direction of the wheel disc (210) and corresponds to each of the masses (230) respectively, for guiding each of the masses (230) to radially move along the radial direction of the wheel disc (210).
5. A cold start device according to claim 1, wherein the masses (230) are distributed annularly along the circumference of the disk (210).
6. a cold start device according to any of claims 1-5, wherein the mass (230) is a spherical body.
7. an automobile, characterized by comprising an engine (100), an electric machine (400), a gearbox (300) and a cold start device according to any one of claims 1-6;
The motor (400) is arranged between the engine (100) and the gearbox (300), a second clutch (700) is arranged between the engine (100) and the gearbox (300), and the second clutch (700) is used for controlling the power transmission from the engine (100) to the gearbox (300);
The motor (400) and the first clutch (600) are connected with a vehicle control unit of the vehicle.
8. A cold start method at low temperature, characterized in that, the cold start of the automobile in the low temperature environment of claim 7 is realized by the cold start device at low temperature of any one of claims 1 to 6, comprising the following steps:
S20: disconnecting the first clutch (600) and the second clutch (700);
S30: the starting motor (400) drives the flywheel (200) to rotate;
s40: and closing the first clutch (600) to enable the flywheel (200) to release energy to drive the engine (100) to work.
9. The cold start method of claim 8, wherein step S40 is preceded by detecting the energy stored in the flywheel (200) with a detection module, and wherein the first clutch (600) is closed when the detection module detects that the energy stored in the flywheel (200) is sufficient to start the engine (100).
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| CN201810257676.7A CN108501681B (en) | 2018-03-27 | 2018-03-27 | low-temperature cold start device, low-temperature cold start method and automobile |
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| CN201810257676.7A CN108501681B (en) | 2018-03-27 | 2018-03-27 | low-temperature cold start device, low-temperature cold start method and automobile |
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| CN108501681B true CN108501681B (en) | 2019-12-17 |
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| CN110985659B (en) * | 2020-02-28 | 2020-07-14 | 盛瑞传动股份有限公司 | Control method for low-temperature cold start of automatic hydraulic transmission |
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| DE3122319A1 (en) * | 1981-06-05 | 1982-12-23 | LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl | Drive unit for motor vehicles, especially passenger motor vehicles |
| GB2413998A (en) * | 2004-05-13 | 2005-11-16 | Volkswagen Ag | Hybrid electric vehicle flywheel assisted engine start |
| DE102012202661A1 (en) * | 2012-02-21 | 2013-08-22 | Tobias Neuwirth | Momentum element device i.e. spring flywheel, for use as mechanical energy converter in e.g. car, has storage device for coupling momentum element and rotor, where ends of device are connected with momentum element and rotor, respectively |
| CN105730446A (en) * | 2016-02-22 | 2016-07-06 | 江苏大学 | Storage battery and flywheel combined type idling and braking energy recycling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090320640A1 (en) * | 2008-06-30 | 2009-12-31 | Christopher Mark Elliott | Variable inertia flywheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122319A1 (en) * | 1981-06-05 | 1982-12-23 | LuK Lamellen und Kupplungsbau GmbH, 7580 Bühl | Drive unit for motor vehicles, especially passenger motor vehicles |
| GB2413998A (en) * | 2004-05-13 | 2005-11-16 | Volkswagen Ag | Hybrid electric vehicle flywheel assisted engine start |
| DE102012202661A1 (en) * | 2012-02-21 | 2013-08-22 | Tobias Neuwirth | Momentum element device i.e. spring flywheel, for use as mechanical energy converter in e.g. car, has storage device for coupling momentum element and rotor, where ends of device are connected with momentum element and rotor, respectively |
| CN105730446A (en) * | 2016-02-22 | 2016-07-06 | 江苏大学 | Storage battery and flywheel combined type idling and braking energy recycling system |
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