CN116039396A - Electric driving device and system for vehicle and vehicle - Google Patents

Electric driving device and system for vehicle and vehicle Download PDF

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Publication number
CN116039396A
CN116039396A CN202310016131.8A CN202310016131A CN116039396A CN 116039396 A CN116039396 A CN 116039396A CN 202310016131 A CN202310016131 A CN 202310016131A CN 116039396 A CN116039396 A CN 116039396A
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CN
China
Prior art keywords
wheel
differential
diagonal
vehicle
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310016131.8A
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Chinese (zh)
Inventor
刘广森
杨大成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Zeekr Intelligent Technology Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Zeekr Intelligent Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Zeekr Intelligent Technology Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN202310016131.8A priority Critical patent/CN116039396A/en
Publication of CN116039396A publication Critical patent/CN116039396A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2036—Electric differentials, e.g. for supporting steering vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels
    • B60L2240/461—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/46—Drive Train control parameters related to wheels
    • B60L2240/465—Slip

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Retarders (AREA)

Abstract

The present invention provides an electric drive apparatus for a vehicle, including: diagonal drive means including a first diagonal drive means; the wheel assembly comprises a first wheel and a second wheel, and the first wheel and the second wheel are respectively arranged on a diagonal line of the vehicle; the differential control assembly comprises a first differential and a first differential lock; the first diagonal driving device is connected with the first wheel and the second wheel respectively, the first differential mechanism is connected with the first diagonal driving device, and the first differential lock is connected with the first differential mechanism. The invention is used for solving the problem that a vehicle cannot normally run when skidding, and mainly relates to an electric driving device, which can ensure that the vehicle normally runs by locking one driving device to ensure that the wheels on the other diagonal line normally work.

Description

Electric driving device and system for vehicle and vehicle
Technical Field
The invention relates to the field of vehicle driving, in particular to an electric driving device for a vehicle.
Background
Most of the existing electric four-wheel drive vehicles adopt front and rear differential devices, wherein a front differential device is used for realizing power transmission and differential of a front shaft, a rear differential device is used for realizing power transmission and differential of a rear shaft, and two wheels on diagonal lines (also called cross shafts) are easy to suspend or slip when running under complex road conditions such as ice and snow, muddy, swamps and the like, so that the vehicles cannot normally run.
A common approach is to control wheel slip using an ESP system (electronic stability control system, which can prevent wheel slip by braking), known as an electronic slip limiting system. But the cornering performance may be affected when the electronic slip limiting system is interposed. In order to ensure turning performance, the electronic slip limiting function is weakened, and the electronic slip limiting system can be overheat-protected and lose the slip limiting function when working for a long time.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an electric driving device, a system and a vehicle for a vehicle, which are used for solving the problem that the vehicle cannot normally run when slipping in the prior art, and mainly relates to an electric driving device, and a diagonal wheel driving method and a using method of a mechanical differential lock are provided.
The present invention provides an electric drive apparatus for a vehicle, including:
a diagonal drive comprising a first diagonal drive;
a wheel assembly including a first wheel and a second wheel, the first wheel and the second wheel being disposed on a first diagonal of the vehicle, respectively;
a differential control assembly including a first differential and a first differential lock;
the first diagonal driving device is connected with the second wheel, the first differential mechanism is connected with the first diagonal driving device, and the first differential lock is connected with the first differential mechanism.
In one embodiment of the present invention, the first differential is connected to the first diagonal driving device, so that the first differential can differential the power output by the first wheel and the second wheel, and the first differential can ensure normal operation during turning.
In one embodiment of the present invention, the first differential includes a side gear and a differential case, the first differential lock includes a sleeve and a differential lock solenoid valve, and the first differential lock drives the sleeve through the differential lock solenoid valve to fixedly connect the side gear with the differential case, thereby effecting locking of the first differential.
In one embodiment of the invention, the diagonal drive means further comprises second diagonal drive means; the wheel assembly further comprises a third wheel and a fourth wheel, and the third wheel and the fourth wheel are respectively arranged on a second diagonal line of the vehicle, which is intersected with the first diagonal line; the differential control assembly further includes a second differential and a second differential lock; the second diagonal driving device is connected with the third wheel, the second differential mechanism is connected with the second diagonal driving device, and the second differential lock is connected with the second differential mechanism.
In one embodiment of the present invention, the vehicle further comprises a transmission assembly, the transmission assembly comprises a hollow transmission shaft and a solid transmission shaft, the solid transmission shaft is arranged inside the hollow transmission shaft, the hollow transmission shaft is respectively connected with the first wheel and the first diagonal driving device, the solid transmission shaft is respectively connected with the fourth wheel and the second diagonal driving device, and the transmission assembly is respectively used for transmitting power to the first wheel and the fourth wheel.
In one embodiment of the invention, when one wheel of the vehicle slips, the driving device connected with the wheel stops working, and the other driving device works normally and drives the wheel on the diagonal connected with the driving device to rotate, so that the vehicle runs normally.
In one embodiment of the present invention, when the vehicle is in a complex terrain, one or both wheels of the vehicle are suspended, and the corresponding differential lock of the differential assembly can lock the corresponding differential lock, relatively increasing the power output to the other wheels.
The present invention provides an electric drive system for a vehicle, including:
a drive system comprising a first drive system;
a wheel system including a first wheel and a second wheel, the first drive system driving the first wheel and the second wheel disposed on a diagonal;
and a differential system that achieves a diagonal differential of the first wheel and the second wheel driven by the first drive system.
In one embodiment of the present invention, a locking system is further included, the locking system controlling the operation of the differential system; the drive system also includes a compound drive train that provides kinetic energy to the wheels.
The invention provides a vehicle, comprising the electric driving device or the electric driving system, which has the functions of driving and differential control on wheels on a diagonal line.
The invention provides an electric driving device for a vehicle, which can realize motor driving of wheels on opposite angles and realize differential through a differential mechanism, and can ensure normal turning of the vehicle when the wheels slip.
Furthermore, the electric driving device of the invention is also provided with the mechanical differential lock on the differential mechanism, so that the power of wheels is increased when the wheels of the vehicle are suspended while the working overheat of the differential lock is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an electric driving device according to an embodiment of the invention;
FIG. 2 is a schematic diagram showing a first driving device and a driving wheel thereof according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a second driving device and a driving wheel thereof according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the structure of the differential and the differential lock according to the present invention in one embodiment
FIG. 5 is a schematic view showing the structure of a composite drive shaft according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an electric drive system according to an embodiment of the invention
Description of element numbers:
the drive device 100, the first drive device 110, the second drive device 120, the first motor 111, the second motor 121, the fourth wheel power output driving gear 122, the fourth wheel power output driven gear 123, the fourth wheel power input driving gear 124, the fourth wheel power input driven gear 125, the fourth wheel half shaft 126, the first wheel power output driving gear 112, the first wheel power output driven gear 113, the first wheel power input driving gear 114, the first wheel power input driven gear 115, the first wheel half shaft 116; differential assembly 300, first differential 310, first differential lock 320, second differential 330, second differential lock 340, differential case 331, differential reduction input gear 332, side gear 333, engagement sleeve 341, differential lock fork 342, differential lock solenoid valve 343, differential case locking spline 344, side gear locking spline 345; wheel assembly 200, first wheel 210, second wheel 220, third wheel 230, fourth wheel 240, transmission assembly 400, hollow transmission shaft 410, solid transmission shaft 420, solid transmission shaft support bearing 421.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
Please refer to fig. 1 to 6. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are intended to fall within the spirit and scope of the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
The invention provides an electric driving device for a vehicle, which is used for enabling the vehicle to normally turn when the vehicle slips. Specifically, as shown in fig. 1, the electric hidden handle device of the present invention includes: a diagonal drive device 100, the diagonal drive device 100 including a first diagonal drive device 110 and a second diagonal drive device 120; the wheel assembly 200, the wheel assembly 200 includes a first wheel 210, a second wheel 220, a third wheel 230 and a fourth wheel 240, the first wheel 210 and the second wheel 220 are respectively disposed on a diagonal of the vehicle, and the third wheel 230 and the fourth wheel 240 are respectively disposed on a first diagonal of the vehicle; differential control assembly 300, differential control assembly 300 includes a first differential 310 and a first differential lock 320; wherein the first diagonal drive 110 is coupled to the second wheel 220 and the second diagonal drive 120 is coupled to the third wheel 230 and the fourth wheel 240, respectively. The first differential 310 is connected to the first diagonal drive 110, and the first differential lock 320 is connected to the first differential 310.
As shown in fig. 2, a first drive device 110 is mounted on the rear end of the vehicle. The first driving device 110 includes a first driving motor 111, a first wheel power output driving gear 112, a first wheel power output driven gear 113, a first wheel power input driving gear 114, a first wheel power input driven gear 115, and a first wheel half shaft 116. The first driving device 110 is connected with the second wheel 220 while the first driving device 110 is connected through a hollow transmission shaft 410 of the composite transmission shaft 400. When the vehicle is running, the first wheel power output driving gear 112 drives the first wheel power output driven gear 113 to rotate, power is transmitted to the hollow transmission shaft 410, and the hollow transmission shaft 410 drives the first wheel power input driving gear 114 to rotate, and further drives the first wheel power input driven gear 115 to rotate, so that power is transmitted to the first wheel 210 through the first wheel half shaft 116. The first differential 310 is connected to the first driving device 110, and is used for balancing the kinetic energy output by the first driving device 110 to the first wheel 210 and the second wheel 220, so that the speeds of the first wheel 210 and the second wheel 220 are differentiated when the vehicle turns, and the normal running of the vehicle when the vehicle turns can be ensured. The first differential lock 320 is coupled to the first differential 310 such that the first differential 310 may be deactivated by mechanical locking when desired.
As shown in fig. 3, a second drive device 120 is mounted on the front end of the vehicle. The second driving device 120 includes a second driving motor 121, a fourth wheel power output driving gear 122, a fourth wheel power output driven gear 123, a fourth wheel power input driving gear 124, a fourth wheel power input driven gear 125, and a fourth wheel half shaft 126. The second drive 120 is coupled to the third wheel 230 while the second drive 120 is coupled to the fourth wheel 240 via a solid drive shaft 420 of the compound drive shaft 400. When the vehicle runs, the fourth wheel power output driving gear 122 drives the fourth wheel power output driven gear 123 to rotate, power is transmitted to the solid transmission shaft 420, the solid transmission shaft 420 drives the fourth wheel power input driving gear 124 to rotate, the fourth wheel power input driven gear 125 is further driven to rotate, and power is transmitted to the fourth wheel 240 through the fourth wheel half shaft 126. The second differential 330 is connected to the second driving device 120, and is used for balancing the kinetic energy output by the second driving device 120 to the third wheel 230 and the fourth wheel 240, so that the speeds of the third wheel 230 and the fourth wheel 240 can be differentiated when the vehicle turns, and the vehicle can be ensured to normally run when the vehicle turns. The second differential lock 340 is coupled to the second differential 330 to deactivate the second differential 330 when necessary by way of a mechanical lock.
A schematic of the mechanical mechanism of the differential lock is shown in fig. 4. The first differential lock 320 and the second differential lock 340 operate in the same manner, and the mechanical structures of the second differential 330 and the second differential lock 340 are illustrated herein for purposes of explanation. The second differential 330 includes a differential case 331, a differential reduction input gear 332, and a side gear 333, and the second differential lock 340 includes a sleeve 341, a differential lock fork 342, a differential lock solenoid valve 343, and a differential case locking spline 344. In a normal state, the engagement sleeve 341 is engaged with the differential case locking spline 344, and when the differential case 331 rotates, the engagement sleeve 341 is driven to idle. When the wheels are suspended, the rotating speed of the suspended wheels is larger than that of the differential mechanism, the planetary gears of the differential mechanism are driven to rotate, and the half shaft gears 333 stop rotating at the moment, namely, the left half shaft gear and the right half shaft gear have a large rotating speed difference relative to the differential mechanism shell 331 at the moment. When the driver presses the differential lock operation switch, the differential lock solenoid valve 343 receives an electric signal, drives the differential lock fork 342 to move, and further drives the engagement sleeve 341 to move toward the side gear locking spline 345, so that the engagement sleeve 341, the differential case locking spline 344 and the side gear locking spline 345 are fixedly connected together, and finally the side gear 333 and the differential case 331 are fixedly connected together, and the rotation speeds of the two are synchronous, at this time, the differential planetary gear revolves along with the differential case, and cannot rotate, and the rotation speed of the side gear 333 is limited to be the same as that of the differential case 331, namely, the differential is locked. When the differential lock operation switch is pressed again, the differential lock solenoid valve 343 receives an electric signal to drive the differential lock fork 342 to move and further drive the sleeve 341 to return, thereby releasing the differential case locking spline 344 and the side gear locking spline 344 from engagement and restoring the differential function. The locking function of the differential lock enables the suspended wheels to be at the same speed as the ground-contacting wheels, and the power of the wheels contacted with the ground is relatively increased, so that the vehicle is more suitable for complex terrains. Meanwhile, the differential lock structure is a mechanical structure, which is different from the traditional electronic slip limiting device and prevents the long-time working device from being overheated to cause failure.
As shown in fig. 1 to 4, when any one of the wheels slips, the driving device for driving that wheel stops operating without locking the differential; at this time, the two wheels on the other diagonal can still drive the vehicle forward, and the steering performance is not affected because either differential is not locked. Also in actual driving, four wheels typically have at least two wheels with one diagonal that are grounded (with good adhesion), but it is possible that one diagonal has adhesion and another diagonal has adhesion. The invention can randomly strain and does not need a locking differential, so that steering is not affected. Whereas a vehicle with a common three differential arrangement must lock the differential, which affects steering.
For example, when the first wheel 210 or the second wheel 240 slips, the first driving device 110 stops the power output, and the first wheel 210 and the second wheel 220 lose power at the same time, but at this time, the third wheel 230 and the fourth wheel 240 on the other diagonal continue to operate without affecting the turning. When the third wheel 230 or the fourth wheel 240 slips, the second driving device 120 stops the power output, and the third wheel 230 and the fourth wheel 240 lose power at the same time, but at this time, the first wheel 210 and the second wheel 220 on the other diagonal continue to work, and the turning is not affected, and the vehicle runs normally.
For example, when the first wheel 210 or the second wheel 220 is suspended, the first differential lock 320 starts to operate and locks the first differential 310, and the power output from the first driving device 110 is not differential, so that the driving force of the other wheel is relatively increased. When the third wheel 230 or the fourth wheel 240 is suspended, the second differential lock 340 starts to operate and locks the second differential 330, and the power output from the second driving device 120 is not differential, so that the driving force of the other wheel is relatively increased. When the first wheel 210 and the third wheel or the fourth wheel are suspended at the same time, the first differential lock 320 and the second differential lock 340 work at the same time to lock the first differential 310 and the second differential 330 respectively, and the power output by the first driving device 110 and the second driving device 120 is not differential, so that the driving forces of the other two wheels are relatively increased. When the second wheel 210 and the third wheel or the fourth wheel are suspended at the same time, the first differential lock 320 and the second differential lock 340 work at the same time to lock the first differential 310 and the second differential 330 respectively, and the power output by the first driving device 110 and the second driving device 120 is not differential, so that the driving forces of the other two wheels are relatively increased.
Fig. 5 is a schematic structural view of the composite drive shaft 400. Both ends of the composite transmission shaft 400 are connected to the first wheel power output driven gear 113, the first wheel power input driving gear 114, the fourth wheel power output driven gear 123, and the fourth wheel power input driving gear 124, respectively. The hollow propeller shaft 410 of the compound propeller shaft 400 transmits power to the first wheel 210 through the first wheel power output driven gear 113 and the first wheel power input drive gear 114, and the fourth wheel power output driven gear 123 and the fourth wheel power input drive gear 124 transmit power to the fourth wheel. The hollow transmission shaft 410 is formed by connecting a hollow transmission shaft with gears at both ends, and the solid transmission shaft 420 is formed by connecting a solid transmission shaft with gears at both ends. Wherein solid drive shafts 410 pass through hollow drive shafts 420 to form a set of composite drive shafts 400..
As shown in fig. 6, the present invention also provides an electric drive system for a vehicle, including: the driving system comprises a first driving system; the wheel system comprises a first wheel and a second wheel, and the first driving system drives the first wheel and the second wheel which are arranged on the diagonal line; and the differential system is used for realizing diagonal differential of the first wheel and the second wheel driven by the first driving system. Meanwhile, the electric driving system also comprises a locking system, and the locking system controls the differential system to work; the drive system also includes a compound drive system that transmits kinetic energy to the wheels.
The present invention also provides a vehicle equipped with the above-mentioned electric drive device or electric drive system, which has a function of driving and differential control of the wheels on the diagonal line.
The invention provides an electric driving device, an electric driving system and a vehicle for the vehicle, which are used for respectively driving wheels on different diagonals through two driving devices, respectively controlling power output by the two driving devices through two differential mechanisms, simultaneously controlling the operation of the differential mechanisms through mechanical differential locks, and controlling the differential locks to lock the differential mechanisms when the vehicle needs.
According to the invention, through the design of driving the wheels on the diagonal line by the driving device, the differential mechanism for controlling the wheels to slip can be locked through the differential lock connected with the differential mechanism when the vehicle slips, and meanwhile, the wheels on the other diagonal line and the driving device continue to work, so that the vehicle can normally run.
Furthermore, the invention transmits power to the wheels through the composite transmission shaft, thereby reducing the use of the internal space.
Therefore, with the electric drive apparatus for a vehicle, the system and the vehicle of the present invention, it is possible to achieve the effect of normal running when the vehicle slips.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. An electric drive apparatus for a vehicle, characterized by comprising:
-a diagonal drive (100), the diagonal drive (100) comprising a first diagonal drive (110);
-a wheel assembly (200), the wheel assembly (200) comprising a first wheel (210) and a second wheel (220), the first wheel (210) and the second wheel (220) being respectively arranged on a first diagonal of the vehicle;
a differential control assembly (300), the differential control assembly (300) comprising a first differential (310) and a first differential lock (320);
wherein the first diagonal drive (110) is connected to the second wheel (220), the first differential (310) is connected to the first diagonal drive (110), and the first differential lock (320) is connected to the first differential (310).
2. The electric drive apparatus for vehicle according to claim 1, wherein the first differential (310) is connected to the first diagonal drive apparatus (110) to make the power output from the first wheel (210) and the second wheel (220) differential, ensuring normal operation in cornering.
3. The electric drive apparatus for a vehicle according to claim 1, characterized in that the first differential (310) includes a side gear and a differential case, the first differential lock (320) includes a sleeve and a differential lock solenoid valve, and the first differential lock (320) fixedly connects the side gear with the differential case by driving the sleeve through the differential lock solenoid valve, thereby effecting locking of the first differential (310).
4. The electric drive device for a vehicle according to claim 1, characterized in that the diagonal drive device (100) further comprises a second diagonal drive device (120); the wheel assembly (200) further comprises a third wheel (230) and a fourth wheel (240), wherein the third wheel (230) and the fourth wheel (240) are respectively arranged on a second diagonal line of the vehicle, which is intersected with the first diagonal line; the differential control assembly (300) further includes a second differential (330) and a second differential lock (340); wherein the second diagonal drive (120) is connected to the third wheel (230), the second differential (330) is connected to the second diagonal drive (120), and the second differential lock (340) is connected to the second differential (330).
5. The electric drive device for a vehicle according to claim 4, further comprising a transmission assembly (400), the transmission assembly (400) including a hollow transmission shaft (410) and a solid transmission shaft (420), the solid transmission shaft (420) being provided inside the hollow transmission shaft (410), the hollow transmission shaft (410) being connected with the first wheel (210) and the first diagonal drive device (110), respectively, the solid transmission shaft (320) being connected with the fourth wheel (240) and the second diagonal drive device (120), respectively, the transmission assembly (400) transmitting power for the first wheel (210) and the fourth wheel (240), respectively.
6. The electric driving apparatus for vehicle according to claim 5, wherein when a certain wheel of the vehicle slips, the driving apparatus connected to the wheel is stopped while the other driving apparatus is operated normally and rotates the wheel on the diagonal line connected thereto, so that the vehicle is operated normally.
7. The electric drive for vehicles according to claim 1, characterized in that when the vehicle is in complex terrain, one or both wheels of the vehicle are suspended, the corresponding differential locks of the differential assembly (300) can lock the corresponding differential, relatively increasing the power output to the other wheels.
8. An electric drive system for a vehicle, comprising:
a drive system comprising a first drive system;
a wheel system including a first wheel and a second wheel, the first drive system driving the first wheel and the second wheel disposed on a diagonal;
and a differential system that achieves a diagonal differential of the first wheel and the second wheel driven by the first drive system.
9. The electric drive system for vehicle of claim 8, further comprising a locking system that controls operation of the differential system; the drive system also includes a compound drive system that transmits kinetic energy to the wheels.
10. A vehicle comprising an electric drive apparatus as claimed in any one of claims 1 to 7 or an electric drive system as claimed in any one of claims 8 to 9, having a function of driving and differential control of wheels on a diagonal.
CN202310016131.8A 2023-01-06 2023-01-06 Electric driving device and system for vehicle and vehicle Pending CN116039396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310016131.8A CN116039396A (en) 2023-01-06 2023-01-06 Electric driving device and system for vehicle and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310016131.8A CN116039396A (en) 2023-01-06 2023-01-06 Electric driving device and system for vehicle and vehicle

Publications (1)

Publication Number Publication Date
CN116039396A true CN116039396A (en) 2023-05-02

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ID=86117961

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310016131.8A Pending CN116039396A (en) 2023-01-06 2023-01-06 Electric driving device and system for vehicle and vehicle

Country Status (1)

Country Link
CN (1) CN116039396A (en)

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