CN216733919U - Electric drive device, trailer and vehicle - Google Patents
Electric drive device, trailer and vehicle Download PDFInfo
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- CN216733919U CN216733919U CN202123302326.4U CN202123302326U CN216733919U CN 216733919 U CN216733919 U CN 216733919U CN 202123302326 U CN202123302326 U CN 202123302326U CN 216733919 U CN216733919 U CN 216733919U
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- trailer
- electric drive
- main controller
- trailer body
- assembly
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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
- Y02T10/72—Electric energy management in electromobility
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Abstract
The utility model provides an electric drive device, which is arranged on a trailer body; the electric drive device includes: the system comprises a main controller, a sensor assembly and an electric drive assembly which are connected with the main controller, and a battery pack which is connected with the main controller and the electric drive assembly; the sensor assembly detects the driving data of the trailer body and feeds the driving data back to the main controller; the main controller sends a control command to the electric drive assembly according to the driving data; and the electric drive assembly drives the trailer body according to the control command. A trailer and a vehicle are also provided. The sensor assembly is used for detecting the running data of the trailer body, so that the main controller automatically controls the working state of the electric drive assembly according to the running data, and the self-adaptive drive of the trailer body is realized; in the whole process, all the electric equipment on the trailer body is used for completing the process, so that the trailer and the traction head do not need to be electrically connected, any electric equipment does not need to be added on the traction head, the trailer can adapt to various types of traction heads, and the universality is excellent.
Description
Technical Field
The utility model relates to the technical field of vehicles, in particular to an electric driving device, a trailer and a vehicle.
Background
Large and medium transport vehicles such as semitrailers, full trailers and central axle trailers. The vehicles are unpowered, need to be dragged by a traction vehicle head to normally run, have high requirements on the traction vehicle head, and have the problems of poor climbing force, large turning radius, long braking distance and the like.
The electric drive bridge, the trailer motor, the motor controller, the battery and the like are arranged on the trailer, the vehicle control unit is additionally arranged on the traction head, the power of the engine and the trailer motor is reasonably distributed, the power of the vehicle is balanced, and the energy consumption and the transportation cost are further reduced. However, although the power performance and the economy of the whole vehicle are improved, the requirement is provided for the traction vehicle head, the whole vehicle controller needs to be additionally installed and is connected with electrical equipment on the trailer through the whole vehicle controller, the trailer or the traction head needs to be frequently replaced in the transportation industry, the problem that the trailer and the tractor are not matched possibly occurs, and the universality is poor.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies in the prior art, the present invention provides an electric drive, a trailer and a vehicle.
In a first aspect, the present invention provides, in one embodiment, an electric drive for location on a trailer body; the electric drive device includes:
the system comprises a main controller, a sensor assembly, an electric drive assembly and a battery pack, wherein the sensor assembly and the electric drive assembly are respectively connected with the main controller;
the sensor assembly is used for detecting the driving data of the trailer body and feeding the driving data back to the main controller;
the main controller is used for sending a control command to the electric drive assembly according to the running data;
the electric drive assembly is used for driving the trailer body according to the control command.
In one embodiment, a sensor assembly comprises:
and the speed sensor, the acceleration sensor and/or the inclination angle sensor are connected with the main controller.
In one embodiment, the sensor assembly further comprises:
a force sensor connected to the master controller;
the force sensor is used for being arranged on a traction pin of the trailer body and detecting the stress condition between the trailer body and the traction head.
In one embodiment, a force sensor includes:
two pressure sensors respectively connected with the main controller;
the two pressure sensors are respectively used for being arranged on the front side and the rear side of the towing pin of the trailer body.
In one embodiment, an electric drive assembly comprises:
the battery pack driving system comprises a motor controller connected with a main controller, a driving motor respectively connected with the motor controller and the battery pack, and a driving axle connected with the driving motor; the drive axle is used for being connected with the wheels of the trailer body.
In one embodiment, the above electric drive device further comprises:
the brake assembly is connected with the main controller;
the brake assembly is used for braking the trailer according to a brake command sent by the main controller.
In a second aspect, the present invention provides, in one embodiment, a trailer comprising a trailer body including a frame and wheels disposed at one end of the frame; the electric drive device in any one of the above embodiments is also included, and the electric drive device is arranged on the trailer body.
In one embodiment, the trailer further comprises:
the trailer landing leg is arranged at the other end of the frame; the bottom of the trailer landing leg is provided with a universal wheel.
In one embodiment, a trailer leg comprises:
the transmission mechanism is fixed on the frame, and the support rod and the rocking handle are respectively movably connected with the transmission mechanism;
the transmission mechanism is used for driving the support rod to extend downwards or retract upwards under the driving of the rocking handle.
In a third aspect, the present invention provides, in one embodiment, a vehicle comprising a tractor and, in any of the embodiments above, a trailer, the tractor and trailer being releasably connectable.
Through the electric drive device, the trailer and the vehicle, the sensor assembly is used for detecting the running data of the trailer body, so that the main controller automatically controls the working state of the electric drive assembly according to the running data to realize the self-adaptive driving of the trailer body; in the whole process, all the electric equipment on the trailer body is used for completing the process, so that the trailer and the traction head do not need to be electrically connected, any electric equipment does not need to be added on the traction head, the trailer can adapt to various types of traction heads, and the universality is excellent.
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 embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Wherein:
FIG. 1 is a schematic diagram of an electrical circuit configuration of an electrical drive device in accordance with an embodiment of the present invention;
FIG. 2 is a schematic view of a vehicle according to an embodiment of the present invention;
FIG. 3 is a schematic view of the mounting configuration of the kingpin and pressure sensor in accordance with an embodiment of the present invention;
fig. 4 is a detailed structural diagram of a trailer leg according to an embodiment of the utility model.
In the above drawings: 1. a trailer; 11. a frame; 12. a wheel; 13. a main controller; 14. an electric drive assembly; 15. a battery pack; 16. a trailer leg; 161. a universal wheel; 162. a transmission mechanism; 163. a strut; 164. a rocking handle; 165. bracing; 166. a locking pin; 17. a tow pin; 171. a pressure sensor; 2. a traction head.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In a first aspect, as shown in fig. 1 and 2, in one embodiment, the present invention provides an electric drive for placement on a trailer body; the electric drive device includes:
the system comprises a main controller 13, a sensor assembly and an electric drive assembly 14 which are respectively connected with the main controller 13, and a battery pack 15 which is respectively connected with the main controller 13 and the electric drive assembly 14;
the sensor assembly is used for detecting the driving data of the trailer body and feeding the driving data back to the main controller 13;
the main controller 13 is used for sending control commands to the electric drive assembly 14 according to the running data;
the electric drive assembly 14 is used for driving the trailer body according to a control command.
The main controller 13 is connected to other electrical devices through a CAN bus (a standard bus of an automobile computer control system and an embedded industrial control local area network) to perform communication.
The main controller 13 can analyze the driving data and determine the current driving state of the trailer body, where the driving state includes a constant speed driving state, an acceleration state, an ascending/descending state, a braking state, and the like, so as to generate a corresponding control instruction according to the driving state and send the control instruction to the electric drive assembly 14.
Through the electric driving device, the sensor assembly is used for detecting the driving data of the trailer body, so that the main controller 13 automatically controls the working state of the electric driving assembly 14 according to the driving data to realize the self-adaptive driving of the trailer body; in the whole process, all the electric equipment on the trailer body is used for completing the operation, so that the trailer 1 and the traction head 2 do not need to be electrically connected, any electric equipment does not need to be added on the traction head 2, the electric equipment can adapt to various types of traction heads 2, and the universality is excellent.
As shown in fig. 1, in one embodiment, a sensor assembly includes:
and the speed sensor, the acceleration sensor and/or the inclination angle sensor are connected with the main controller.
The speed sensor is arranged at a wheel hub and used for detecting the running speed of the trailer body; the acceleration sensor is arranged on the trailer body and used for detecting the acceleration of the trailer body; inclination sensor installs on the trailer body for detect the horizontal inclination of trailer body.
Wherein, the inclination angle sensor is a high-precision double-shaft inclination angle sensor.
Through speedtransmitter, acceleration sensor and/or inclination sensor, main control unit can synthesize according to trailer body's speed, acceleration, automobile body inclination etc. and judge, improves the control effect to electric drive assembly.
As shown in fig. 1, in one embodiment, the sensor assembly further comprises:
a force sensor connected to the master controller;
the force sensor is used for being arranged on a traction pin of the trailer body and detecting the stress condition between the trailer body and the traction head.
Through force sensor, main control unit can further judge according to the atress condition between trailer body and the traction head, further improves the control effect to electric drive subassembly.
As shown in fig. 3, in one embodiment, the force sensor includes:
two pressure sensors 171 connected to the main controller, respectively;
the two pressure sensors 171 are provided on the front and rear sides of the kingpin 17 of the trailer body.
The pressure sensor 171 located on the front side can detect the pulling force of the towing head on the trailer body; similarly, the pressure sensor 171 located on the rear side can detect the pressure of the trailing head against the trailer body.
The stress condition between the traction head and the trailer body can be basically and comprehensively detected through the two pressure sensors 171 arranged in the front and at the back, and the structure is simple.
As shown in fig. 1, in one embodiment, an electric drive assembly includes:
the battery pack driving system comprises a motor controller connected with a main controller, a driving motor respectively connected with the motor controller and the battery pack, and a driving axle connected with the driving motor; the drive axle is used for being connected with the wheels of the trailer body.
The connection mode between the driving motor and the driving axle comprises transmission shaft connection, gear connection, spline connection and the like
Wherein, the transaxle includes axle housing, differential mechanism, reduction gear, transmission shaft etc. usually to can adopt multistage slow speed structure, increase reduction ratio, thereby play the effect of speed reduction increase of torsion. The drive axle in this embodiment is any one of the prior art, and the specific structural composition and connection relationship can refer to the prior art, which is not described herein again.
In one embodiment, the electric driving device can also be a centralized driving motor, a wheel-side motor or a wheel hub motor and the like, and directly integrates structures such as power, transmission and the like at the wheel; compared with the mode of adopting a drive axle, the driving of a single wheel is realized by the embodiment.
In one embodiment, the electric drive assembly may be provided with a plurality of sets, each set for driving a corresponding wheel. The specific number can be determined according to the length and the load of the trailer body.
As shown in fig. 1, in one embodiment, the electric driving device further includes:
the brake assembly is connected with the main controller;
the brake assembly is used for braking the trailer according to a brake command sent by the main controller.
Wherein, when the electric drive assembly adopts a drive axle mode, the brake assembly is usually arranged on the drive axle; brake assemblies include disc brake assemblies and drum brake assemblies, both of which are braked by friction.
In one embodiment, the electric driving device can enable the driving motor to be used as a generator to convert the current mechanical energy into electric energy through the main controller and the motor controller during the deceleration or braking process of the trailer body, so as to charge the battery pack for reuse, thereby increasing the endurance capacity; therefore, the purpose of energy recovery is achieved, and the specific process is as follows:
when the main controller detects that the acceleration of the trailer body is positive (indicating that the trailer body is accelerating), and detects that the trailer body is pulled by a traction head, a power-assisted instruction is sent to the motor controller; the motor controller controls the driving motor to provide power;
when the main controller detects that the acceleration of the trailer body is 0 (indicating that the trailer is running at a constant speed or is static), sending a disconnection command to the motor controller; the motor controller controls the driving motor to be disconnected with the drive axle;
when the main controller detects that the acceleration of the trailer body is negative (indicating deceleration or braking) or detects that the trailer body is subjected to the pressure of a traction head, sending a deceleration command to the motor controller or sending a braking command to the motor controller and the braking assembly; the motor controller controls the driving motor to generate reverse braking torque to realize speed reduction or assist the braking of the braking assembly, and meanwhile, the charging loop is switched on, and at the moment, the rotor of the driving motor serves as the rotor of the generator to convert the rotating mechanical energy provided by the wheels into electric energy to charge the battery pack.
In a second aspect, as shown in fig. 2, in one embodiment, the present invention provides a trailer 1 comprising a trailer body including a frame 11 and wheels 12 disposed at one end of the frame 11; the electric drive device in any one of the above embodiments is also included, and is arranged on the trailer body.
By the trailer 1, the sensor assembly is used for detecting the running data of the trailer body, so that the main controller 13 automatically controls the working state of the electric drive assembly 14 according to the running data to realize the self-adaptive drive of the trailer body; in the whole process, all the electric equipment on the trailer body is used for completing the operation, so that the trailer 1 and the traction head 2 do not need to be electrically connected, any electric equipment does not need to be added on the traction head 2, the electric equipment can adapt to various types of traction heads 2, and the universality is excellent.
As shown in fig. 2 and 4, in one embodiment, the trailer 1 further includes:
a trailer leg 16 disposed at the other end of the frame 11; the bottom of the trailer leg 16 is provided with a castor 161.
Wherein the trailer leg 16 is bolted to the frame 11.
Can break away from behind the traction head 2 through universal wheel 161 cooperation electric drive, realize the short distance transfer, improve trailer 1's flexibility.
As shown in fig. 2 and 4, in one embodiment, the trailer leg 16 includes:
the transmission mechanism 162 is fixed on the frame 11, the support bar 163 and the rocking handle 164 are respectively movably connected with the transmission mechanism 162, and the bottom of the support bar 163 is connected with the universal wheel 161;
the transmission mechanism 162 is used to drive the strut 163 to extend downward or retract upward under the drive of the crank 164.
The transmission mechanism 162, the rocking handle 164 and the supporting rod 163 can adopt the existing bevel gear lifter or worm gear screw lifter structure, wherein a limit flat key is arranged on a shell of the transmission mechanism 162 and can be matched with a limit key slot formed in the supporting rod 163 to limit the rotation of the supporting rod 163, the rocking handle 164 is a worm or is connected with an input bevel gear, when the rocking handle 164 rotates, the worm gear or the output bevel gear inside the transmission mechanism 162 is driven to rotate, an inner ring of the worm gear or an inner ring of the output bevel gear is in threaded fit with the supporting rod 163, when the worm gear or the output bevel gear rotates, the supporting rod 163 can be driven to move up and down, specific details can refer to the prior art, and are not described herein again. In other embodiments, the trailer legs 16 may also be automated devices, such as electric pushers, hydraulic pushers, and the like.
As shown in fig. 2 and 4, in one embodiment, the trailer leg 16 further comprises:
a sleeve fixedly connected with the frame 11 and sleeved on the support rod 163, and a diagonal brace 165 respectively fixedly connected with the sleeve and the frame 11.
The trailer leg 16 can be reinforced by the brace 165.
As shown in fig. 2 and 4, in one embodiment, the trailer leg 16 further comprises:
limiting holes which are respectively arranged at the top of the universal wheel 161 and the bottom of the supporting rod 163 and are vertically arranged, and a locking pin 166 which is inserted into the limiting holes to realize limiting.
The position of the limit hole is designed so that the driving direction of the universal wheel 161 is parallel to the length direction of the frame 11 after the locking pin 166 is inserted, that is, the trailer body can only move linearly.
In one embodiment, the electric drive device has an automatic mode and a remote control mode, when the trailer body is connected with the traction head, the electric drive device is adjusted to the automatic mode, and the main controller can automatically drive according to the running data of the trailer body; after the trailer body is separated from the traction head, the electric drive device is adjusted to be a remote control module, and the main controller can drive according to a remote control signal.
The automatic and remote mode switching of the electric driving device can be automatically realized, for example, when the trailer body is detected to be subjected to the force of a traction head, the automatic mode switching is adjusted; when the trailer body is detected not to be stressed by the traction head, the fact that the traction head is basically separated from the trailer body is indicated, and therefore the trailer is adjusted to be in a remote control mode; and automatically performs a power-off shut-down when the electric drive is not operated for a long time.
In a third aspect, as shown in figure 2, in one embodiment the utility model provides a vehicle comprising a tractor head 2, and a trailer 1 as in any of the above embodiments, the tractor head 2 being releasably attachable to the trailer 1.
By the vehicle, the sensor assembly is used for detecting the running data of the trailer body, so that the main controller 13 automatically controls the working state of the electric drive assembly 14 according to the running data to realize the self-adaptive drive of the trailer body; in the whole process, all the electric equipment on the trailer body is used for completing the operation, so that the trailer 1 and the traction head 2 do not need to be electrically connected, any electric equipment does not need to be added on the traction head 2, the electric equipment can adapt to various types of traction heads 2, and the universality is excellent.
All possible combinations of the technical features in the above embodiments may not be described for the sake of brevity, but should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above examples are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the utility model, and these changes and modifications are all within the scope of the utility model. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An electric drive device, characterized in that the electric drive device is intended to be arranged on a trailer body; the electric drive device includes:
the system comprises a main controller, a sensor assembly and an electric drive assembly which are respectively connected with the main controller, and a battery pack which is respectively connected with the main controller and the electric drive assembly;
the sensor assembly is used for detecting the driving data of the trailer body and feeding the driving data back to the main controller;
the main controller is used for sending a control command to the electric drive assembly according to the running data;
the electric drive assembly is used for driving the trailer body according to the control instruction.
2. The electric drive of claim 1, wherein the sensor assembly comprises:
and the speed sensor, the acceleration sensor and/or the inclination angle sensor are connected with the main controller.
3. The electric drive of claim 2, wherein the sensor assembly further comprises:
a force sensor connected to the master controller;
the force sensor is used for being arranged on a traction pin of the trailer body and detecting the stress condition between the trailer body and the traction head.
4. The electric drive of claim 3, wherein the force sensor comprises:
the two pressure sensors are respectively connected with the main controller;
and the two pressure sensors are respectively arranged on the front side and the rear side of the towing pin of the trailer body.
5. The electric drive device of claim 1, wherein the electric drive assembly comprises:
the motor controller is connected with the main controller, the driving motor is respectively connected with the motor controller and the battery pack, and the driving axle is connected with the driving motor; the drive axle is used for being connected with wheels of the trailer body.
6. The electric drive device of claim 1, further comprising:
the brake assembly is connected with the main controller;
and the brake assembly is used for braking the trailer according to the brake command sent by the main controller.
7. A trailer comprises a trailer body, wherein the trailer body comprises a frame and wheels arranged at one end of the frame; characterized in that it further comprises an electric drive as claimed in any of claims 1 to 6, which is arranged on the trailer body.
8. The trailer as in claim 7, further comprising:
the trailer landing leg is arranged at the other end of the frame; and universal wheels are arranged at the bottoms of the trailer supporting legs.
9. The trailer as in claim 8, wherein the trailer leg comprises:
the transmission mechanism is fixed on the frame, and the support rod and the rocking handle are respectively movably connected with the transmission mechanism;
the transmission mechanism is used for driving the supporting rod to extend downwards or retract upwards under the driving of the rocking handle.
10. A vehicle comprising a tractor and a trailer as claimed in any one of claims 7 to 9, the tractor and trailer being releasably connectable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123302326.4U CN216733919U (en) | 2021-12-24 | 2021-12-24 | Electric drive device, trailer and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123302326.4U CN216733919U (en) | 2021-12-24 | 2021-12-24 | Electric drive device, trailer and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216733919U true CN216733919U (en) | 2022-06-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123302326.4U Active CN216733919U (en) | 2021-12-24 | 2021-12-24 | Electric drive device, trailer and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216733919U (en) |
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2021
- 2021-12-24 CN CN202123302326.4U patent/CN216733919U/en active Active
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