CN112659889A - Coaxial pure electric vehicle power system with power disconnection function and vehicle - Google Patents
Coaxial pure electric vehicle power system with power disconnection function and vehicle Download PDFInfo
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- CN112659889A CN112659889A CN202011539458.6A CN202011539458A CN112659889A CN 112659889 A CN112659889 A CN 112659889A CN 202011539458 A CN202011539458 A CN 202011539458A CN 112659889 A CN112659889 A CN 112659889A
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- gear
- disconnection
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- intermediate shaft
- shaft
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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
- B60K1/00—Arrangement or mounting of electrical propulsion units
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/06—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing
- B60K17/08—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of change-speed gearing of mechanical type
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/16—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing of differential gearing
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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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
Abstract
The invention provides a coaxial pure electric vehicle power system with a power disconnection function and a vehicle, comprising: the gear-shifting mechanism comprises a motor, a gear, a middle shaft assembly, a gear-shifting driving mechanism, a differential assembly and an output shaft; the motor is connected with the gear and is used for driving the gear to rotate; the gear, the middle shaft assembly and the differential assembly form a gear transmission mechanism; the intermediate shaft assembly comprises an intermediate shaft and a connecting and disconnecting gear; the gear shifting driving mechanism is used for connecting or disconnecting the on-off gear with the middle shaft; when the intermediate shaft is connected with the connection and disconnection gear, power is transmitted to the output shaft through the motor, the gear, the connection and disconnection gear, the intermediate shaft and the differential assembly in sequence; when the intermediate shaft is disconnected with the on-off gear, the on-off gear idles. The coaxial pure electric vehicle power system with the power disconnection function and the vehicle realize disconnection of the wheel end and the motor end by disconnecting the transmission path of the intermediate shaft, reduce the dragging torque, effectively reduce the energy consumption of the whole vehicle and improve the endurance mileage.
Description
Technical Field
The invention relates to the technical field of power transmission systems of electric automobiles, in particular to a coaxial pure electric automobile power system with a power disconnection function and an automobile.
Background
On the background of insufficient energy storage, severe energy safety problems and increasingly severe environmental pollution in the current international world, key technologies in the field of new energy are continuously developed, light-weight electrified new energy automobiles replace traditional fuel automobiles and have no technical problems, a period for forbidding fuel automobiles is set in part of countries, and electric automobiles are taken as important items in the new energy automobiles and are supported and helped by the countries in recent years. The development of pure electric vehicles is a major trend faced by all countries in the world today and is a necessary way for promoting scientific and technological development, although the development of electric vehicles still faces various difficulties at present, wherein similar to the oil consumption index of the traditional gasoline vehicles, the power consumption is also an important parameter for assessing the performance of the electric vehicles and is also a key index for measuring subsidies of New energy vehicles, and the countries set relevant laws and regulations on the whole vehicle power consumption index of the electric vehicles, such as NEDC (New european Driving Cycle, called 'NEDC') and WLTC (global Light vehicle unified Test Cycle, world Light-duty Test Cycle, called 'WLTC') energy consumption rate, whole vehicle energy consumption limit value and the like. Therefore, how to reduce the energy consumption rate of the whole vehicle and improve the endurance mileage of the whole vehicle becomes a topic of major attention.
In recent years, the consumption reduction and efficiency improvement are generally achieved through the following two schemes, namely: by optimizing the energy recovery strategy of the pure electric vehicle, the time and proportion of the motor braking action are properly improved, the endurance mileage of the whole vehicle is effectively prolonged, and the power consumption of the whole vehicle is reduced; scheme II: energy transmission components influencing the economy of the pure electric vehicle are analyzed, and the transmission efficiency of a motor, an electric controller, a battery and the like is improved; and the energy consumption economy of the pure electric vehicle is improved.
Although the endurance mileage can be improved by recovering braking energy and improving the transmission efficiency of a motor, an electric controller, a battery and the like, the following defects exist: on the first hand, the recovery efficiency of the braking energy is generally about 10% -30%, the requirement of the recovery of the braking energy on the design of a transmission system of the whole vehicle is higher, and meanwhile, for one four-wheel drive vehicle, the recovery efficiency of the energy of a single electric drive system is often higher than that of two electric drive systems; in the second aspect, the transmission efficiency of the ordinary electric driving system can be improved through the optimized design, but when the whole vehicle slides under a working condition or the whole vehicle is driven singly, the whole dragging torque is increased due to the fact that the disconnection function is not available, the energy consumption of the whole vehicle is increased finally, and the endurance mileage is reduced.
Disclosure of Invention
Aiming at the technical problems in the background art, the invention provides a coaxial pure electric vehicle power system with a power disconnection function, which can realize disconnection of a transmission path of an intermediate shaft, disconnection of a wheel end and a motor end, reduction of dragging torque and improvement of endurance mileage when a whole vehicle slides or a single vehicle is driven.
The invention is realized by the following technical scheme:
a coaxial pure electric vehicle power system with a power disconnection function comprises: the gear-shifting mechanism comprises a motor, a gear, a middle shaft assembly, a gear-shifting driving mechanism, a differential assembly and an output shaft; the motor is connected with the gear and is used for driving the gear to rotate; the gear and the middle shaft assembly form a gear transmission mechanism; the intermediate shaft assembly comprises an intermediate shaft and a connecting and disconnecting gear; the gear shifting driving mechanism is used for connecting or disconnecting the connection and disconnection gear with the middle shaft; when the intermediate shaft is connected with the connection and disconnection gear, power is transmitted to the output shaft through the motor, the gear, the connection and disconnection gear, the intermediate shaft and the differential assembly in sequence; when the intermediate shaft is disconnected with the on-off gear, the on-off gear idles.
Further, the middle shaft assembly further comprises a sliding sleeve and a clutch; the shift drive mechanism comprises a cam mechanism; the sliding sleeve is connected with and separated from the clutch under the action of the cam mechanism; when the sliding sleeve is jointed with the clutch, the intermediate shaft is connected with the on-off gear; when the sliding sleeve is disconnected with the clutch, the intermediate shaft is disconnected with the disconnection gear.
Further, the intermediate shaft assembly further comprises a bearing; the on-off gear is sleeved on the intermediate shaft through the bearing.
Further, the bearing is a needle bearing.
Further, the motor comprises a motor shaft, and the sliding sleeve is in spline connection with the connecting and disconnecting gear; the clutch is in splined connection with the intermediate shaft; the gear is connected with the motor shaft spline.
Further, the gear shifting driving mechanism further comprises a gear shifting motor and a gear pair; the gear shifting motor is used for driving the gear pair; the gear pair is used for driving the cam mechanism to rotate, and when the sliding sleeve moves towards one side close to the clutch, the sliding sleeve is jointed with the clutch, so that the connection and disconnection of the gear and the intermediate shaft are realized.
Further, the gear shifting driving mechanism further comprises a gear shifting motor and a gear pair; the gear shifting motor is used for driving the gear pair; the gear pair is used for driving the cam mechanism to rotate, and when the sliding sleeve moves towards one side far away from the clutch, the sliding sleeve is disconnected with the clutch, so that the disconnection of the disconnection gear and the intermediate shaft is realized.
Further, the rotor of the motor is of a hollow shaft structure.
Further, the differential assembly includes a differential case, a main reduction gear, first planetary gears, second planetary gears, side gears, and planet pins.
The invention also discloses an automobile which comprises the coaxial pure electric automobile power system with the power disconnection function in any scheme.
By adopting the technical scheme, the coaxial pure electric vehicle power system with the power disconnection function has the following beneficial effects:
the gear shifting driving mechanism is added in the transmission system and is used for connecting or disconnecting the connection and disconnection gear with the intermediate shaft (when the intermediate shaft is connected with the connection and disconnection gear, power is transmitted to the output shaft through the motor, the gear, the connection and disconnection gear, the intermediate shaft and the differential assembly in sequence, and when the intermediate shaft is disconnected with the connection and disconnection gear, the connection and disconnection gear idles), so that when the whole vehicle slides, the braking energy recovery is not carried out any more, the braking energy recovery working condition is reduced, the structural design difficulty is reduced, and the purpose of improving the endurance mileage is achieved; under the same motor, electronic control and battery transmission efficiency, the wheel end and the motor end are disconnected by disconnecting the intermediate shaft transmission path, the dragging torque is reduced, the energy consumption of the whole vehicle can be more effectively reduced, and the endurance mileage is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a coaxial pure electric vehicle power system with a power disconnection function according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a middle shaft assembly in a coaxial pure electric vehicle power system with a power disconnection function according to an embodiment of the present invention in a disconnected state;
in the figure: 1-motor, 11-rotor, 2-gear, 3-intermediate shaft assembly, 31-intermediate shaft, 32-connecting and disconnecting gear, 33-sliding sleeve, 34-clutch, 35-bearing, 36-gasket, 4-gear-shifting driving mechanism, 41-cam mechanism, 42-gear-shifting motor, 43-gear pair, 5-differential assembly, 51-differential shell, 52-main reducing gear, 53-first planetary gear, 54-second planetary gear, 55-half shaft gear, 56-planetary gear shaft and 6-output shaft.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in 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 be operated, and thus, should not be construed as limiting the present invention.
As shown in fig. 1, an embodiment of the present invention provides a coaxial pure electric vehicle power system with a power disconnection function, including: the device comprises a motor 1, a gear 2, an intermediate shaft assembly 3, a gear shifting driving mechanism 4, a differential assembly 5 and an output shaft 6; the motor 1 is connected with the gear 2 and is used for driving the gear 2 to rotate; the gear 2 and the intermediate shaft component 3 form a gear 2 transmission mechanism; the intermediate shaft assembly 3 comprises an intermediate shaft 31 and a connecting and disconnecting gear 32; the shift drive mechanism 4 is used for connecting or disconnecting the connecting/disconnecting gear 32 with the intermediate shaft 31; when the intermediate shaft 31 is connected with the on-off gear 32, power is transmitted to the output shaft 6 sequentially through the motor 1, the gear 2, the on-off gear 32, the intermediate shaft 31 and the differential assembly 5; when the intermediate shaft 31 is disconnected from the on-off gear 32, the on-off gear 32 idles.
The coaxial pure electric vehicle power system with the power disconnection function provided by the embodiment of the invention has the advantages that by adding the gear shifting driving mechanism 4 into the transmission system, is used for connecting or disconnecting the on-off gear 32 with the intermediate shaft 31 (when the intermediate shaft 31 is connected with the on-off gear 32, power is transmitted to the output shaft through the motor 1, the gear 2, the on-off gear 32, the intermediate shaft 31 and the differential assembly 5 in sequence, when the intermediate shaft 31 is disconnected with the on-off gear 32, the on-off gear 32 idles), so that when the whole vehicle slides, the braking energy recovery is not carried out any more, the braking energy recovery working condition is reduced, and the structural design difficulty is reduced, the aim of improving the endurance mileage is achieved, and through analysis, under the same condition, the endurance mileage improved by the disconnection function is 3-5% higher than that improved by the recovery of braking energy under the working condition of 'NEDC'; under the same motor, electronic control and battery transmission efficiency, the wheel end and the motor end are disconnected by disconnecting the intermediate shaft transmission path, the dragging torque is reduced, the energy consumption of the whole vehicle can be more effectively reduced, and the endurance mileage is improved.
In another embodiment of the present invention, the intermediate shaft assembly 3 further comprises a sliding sleeve 33 and a clutch 34; the shift drive mechanism 4 includes a cam mechanism 41; the sliding sleeve 33 completes the engagement and the disengagement with the clutch 34 under the action of the cam mechanism 41; when the sliding sleeve 33 is engaged with the clutch 34, the intermediate shaft 31 is connected with the on-off gear 32; when the sliding sleeve 33 is disconnected from the clutch 34, the intermediate shaft 31 is disconnected from the connection and disconnection gear 32; wherein the clutch 34 may be a dog clutch.
In another embodiment of the invention, the intermediate shaft assembly 3 further comprises a bearing 35; the connecting and disconnecting gear 32 is sleeved on the intermediate shaft 31 through the bearing 35. In particular, the bearing 35 may be a needle bearing; the bearing 35 may also be provided with a spacer 36 on a side thereof adjacent to the motor 1.
In another embodiment of the present invention, the motor 1 includes a motor shaft (not shown), the sliding sleeve 33 and the connecting/disconnecting gear 32, and the clutch 34 and the intermediate shaft 31, and the gear 2 and the motor shaft can be connected by splines.
In another embodiment of the present invention, the shift drive mechanism 4 further includes a shift motor 42 and a gear pair 43; the shift motor 42 is used for driving the gear pair 43; the gear pair 43 is used for driving the cam mechanism 41 to rotate, and when the sliding sleeve 33 moves towards one side close to the clutch 34, the sliding sleeve 33 is engaged with the clutch 34, so that the connection and disconnection gear 32 is connected with the intermediate shaft 31; when the sliding sleeve 33 moves to the side far away from the clutch 34, the sliding sleeve 33 is disconnected from the clutch 34, so that the disconnection gear 32 is disconnected from the intermediate shaft 31; at this time, the on-off gear 32 is disconnected from the intermediate shaft 31, the on-off gear 32 idles, the disconnection between the wheel end and the motor 1 end is realized, the dragging loss is reduced, the energy consumption is reduced, the braking energy recovery rate is improved, and finally the endurance mileage is improved.
In another embodiment of the present invention, the rotor 11 of the motor 1 may be a hollow shaft structure.
In another embodiment of the present invention, the differential assembly 5 includes a differential case 51, a main reduction gear 52, first planetary gears 53, second planetary gears 54, side gears 55, and planetary gear shafts 56.
The invention is explained in more detail below with reference to specific operating modes.
Combining working conditions:
as shown in fig. 1, the shift driving mechanism 4 rotates via the shift motor 42 to drive the gear pair 43 to rotate, and further drive the cam mechanism 41 to rotate, the cam mechanism 41 drives the sliding sleeve 33 to move rightwards, and the sliding sleeve 33 is combined with the clutch 34, so as to connect and disconnect the gear 32 and the intermediate shaft 31. Power transmission path at this time: the gear shift motor 42- > the gear pair 43- > the cam mechanism 41- > the intermediate shaft 31- > the break gear 32- > the main reduction gear 52- > the differential case 51- > the planetary gear shaft 404- > the planetary gear 53(54) -the side gear 55- > (the output shaft 6- > the left drive shaft, the right drive shaft) - > the wheel.
When the electric drive meets the VCU gear shifting (combination) requirement, firstly identifying and calculating, judging the required motor rotating speed, then carrying out motor speed regulation until the rotating speed of the motor is matched with the rotating speed of the wheel end (based on the design of the dog tooth differential mechanism, the rotating speed difference between the motor (the connecting and disconnecting gear 32) and the wheel end (the intermediate shaft 31-the dog tooth differential mechanism) is approximately 50-100 rpm/min, feeding back information after the motor speed regulation is finished, and then entering the gear shifting stage to finish the whole gear shifting process.
The disconnection working condition is as follows:
as shown in fig. 2, the gear shift driving mechanism 2 rotates via the gear shift motor 42 to drive the gear pair 43 to rotate, and further drive the cam mechanism 41 to rotate, the cam mechanism 41 drives the sliding sleeve 33 to move leftward, and the sliding sleeve 33 is coupled with the clutch 34, so as to disconnect the on-off gear 32 from the intermediate shaft 31. The connecting and disconnecting gear 32 is freely fitted on the intermediate shaft 31 through the bearing 35, and the connecting and disconnecting gear 32 idles, and finally, the connecting and disconnecting gear 32 is disconnected from the intermediate shaft 31. At the moment, the working condition is that the whole vehicle only needs one electric drive (working condition 1) or enters a sliding working condition (working condition 2), and the whole vehicle needs to be disconnected to reduce the dragging loss or improve the recovery rate of braking energy.
In practical working conditions, the two electric drives have the simultaneous driving efficiency of 80 percent in the working condition of high speed of 90 km/h. The efficiency of one electric drive is 89%.
In another practical condition, when the vehicle slides, the whole vehicle generally carries out braking energy recovery, and the braking energy recovery rate of one electric drive is larger than that of two electric drives, because the larger the load is, the higher the braking energy recovery rate is.
When the whole vehicle is judged to need to be electrically driven to be disconnected based on a strategy, the motor firstly reduces the torque, after the torque is reduced and completed, a feedback signal is fed to the electric driver, the electric driver receives the disconnection requirement and shifts (disconnects) the gear, after the gear shifting is completed, the motor speed reduction processing is carried out based on the whole vehicle, the rotating speed is reduced to the target rotating speed, and the whole gear shifting is completed. At the moment, the electric drive does not carry out power output, braking energy is not recovered after the electric drive is disconnected, and meanwhile, due to the disconnection, the dragging loss of the whole electric drive is reduced (the dragging loss of a connection and disconnection gear, a gear and a motor is reduced), and the purpose of improving the endurance mileage is realized.
The embodiment of the invention also discloses an automobile which comprises the coaxial pure electric automobile power system with the power disconnection function in any one of the embodiments.
While the foregoing is directed to the preferred embodiment and specific embodiments of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a coaxial-type pure electric vehicles driving system with power disconnection function which characterized in that includes: the gear-shifting mechanism comprises a motor, a gear, a middle shaft assembly, a gear-shifting driving mechanism, a differential assembly and an output shaft;
the motor is connected with the gear and is used for driving the gear to rotate;
the gear and the middle shaft assembly form a gear transmission mechanism;
the intermediate shaft assembly comprises an intermediate shaft and a connecting and disconnecting gear;
the gear shifting driving mechanism is used for connecting or disconnecting the connection and disconnection gear with the middle shaft;
when the intermediate shaft is connected with the connection and disconnection gear, power is transmitted to the output shaft through the motor, the gear, the connection and disconnection gear, the intermediate shaft and the differential assembly in sequence;
when the intermediate shaft is disconnected with the on-off gear, the on-off gear idles.
2. The coaxial blade electric vehicle powertrain with power disconnection function of claim 1, characterized in that the mid-shaft assembly further comprises a sliding sleeve and a clutch;
the shift drive mechanism comprises a cam mechanism;
the sliding sleeve is connected with and separated from the clutch under the action of the cam mechanism;
when the sliding sleeve is jointed with the clutch, the intermediate shaft is connected with the on-off gear;
when the sliding sleeve is disconnected with the clutch, the intermediate shaft is disconnected with the disconnection gear.
3. The coaxial blade electric vehicle powertrain with power disconnection functionality of claim 2, characterized in that the mid-shaft assembly further comprises a bearing;
the on-off gear is sleeved on the intermediate shaft through the bearing.
4. The coaxial blade electric vehicle power system with the power disconnection function according to claim 3, wherein the bearing is a needle roller bearing.
5. The coaxial pure electric vehicle power system with the power disconnection function according to claim 2, wherein the motor comprises a motor shaft, and the sliding sleeve is in spline connection with the disconnection gear;
the clutch is in splined connection with the intermediate shaft;
the gear is connected with the motor shaft spline.
6. The coaxial pure electric vehicle power system with the power disconnection function according to claim 2, wherein the gear shift driving mechanism further comprises a gear shift motor and a gear pair;
the gear shifting motor is used for driving the gear pair;
the gear pair is used for driving the cam mechanism to rotate, and when the sliding sleeve moves towards one side close to the clutch, the sliding sleeve is jointed with the clutch, so that the connection and disconnection of the gear and the intermediate shaft are realized.
7. The coaxial pure electric vehicle power system with the power disconnection function according to claim 2, wherein the gear shift driving mechanism further comprises a gear shift motor and a gear pair;
the gear shifting motor is used for driving the gear pair;
the gear pair is used for driving the cam mechanism to rotate, and when the sliding sleeve moves towards one side far away from the clutch, the sliding sleeve is disconnected with the clutch, so that the disconnection of the disconnection gear and the intermediate shaft is realized.
8. The coaxial pure electric vehicle power system with the power disconnection function according to any one of claims 1 to 7, wherein a rotor of the motor is of a hollow shaft structure.
9. The coaxial electric vehicle power system with power disconnection function according to any one of claims 1 to 7, wherein the differential assembly comprises a differential case, a main reduction gear, first planetary gears, second planetary gears, side gears, and planetary gear shafts.
10. An automobile characterized by comprising the coaxial pure electric automobile power system with power disconnection function according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539458.6A CN112659889A (en) | 2020-12-23 | 2020-12-23 | Coaxial pure electric vehicle power system with power disconnection function and vehicle |
| PCT/CN2021/140141 WO2022135407A1 (en) | 2020-12-23 | 2021-12-21 | Coaxial pure electric vehicle power system having power disconnection function and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011539458.6A CN112659889A (en) | 2020-12-23 | 2020-12-23 | Coaxial pure electric vehicle power system with power disconnection function and vehicle |
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| CN112659889A true CN112659889A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011539458.6A Pending CN112659889A (en) | 2020-12-23 | 2020-12-23 | Coaxial pure electric vehicle power system with power disconnection function and vehicle |
Country Status (2)
| Country | Link |
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| CN (1) | CN112659889A (en) |
| WO (1) | WO2022135407A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022135407A1 (en) * | 2020-12-23 | 2022-06-30 | 武汉路特斯汽车有限公司 | Coaxial pure electric vehicle power system having power disconnection function and vehicle |
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| Publication number | Publication date |
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| WO2022135407A1 (en) | 2022-06-30 |
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