CN116238307A - Electric full trailer - Google Patents

Electric full trailer Download PDF

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Publication number
CN116238307A
CN116238307A CN202310244009.6A CN202310244009A CN116238307A CN 116238307 A CN116238307 A CN 116238307A CN 202310244009 A CN202310244009 A CN 202310244009A CN 116238307 A CN116238307 A CN 116238307A
Authority
CN
China
Prior art keywords
electric
trailer
controller
wheel
motor
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
CN202310244009.6A
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Chinese (zh)
Inventor
孙周
李星
安宁
周荣强
马国良
冷邦平
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.)
Sichuan Xinzhizao Technology Co ltd
Original Assignee
Sichuan Xinzhizao Technology Co ltd
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Filing date
Publication date
Application filed by Sichuan Xinzhizao Technology Co ltd filed Critical Sichuan Xinzhizao Technology Co ltd
Priority to CN202310244009.6A priority Critical patent/CN116238307A/en
Publication of CN116238307A publication Critical patent/CN116238307A/en
Pending legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/10—Arrangement of tyre-inflating pumps mounted on vehicles
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
    • B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
    • B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D63/00—Motor vehicles or trailers not otherwise provided for
    • B62D63/06—Trailers
    • B62D63/068—Trailers with more than two axles or more than four wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D63/00—Motor vehicles or trailers not otherwise provided for
    • B62D63/06—Trailers
    • B62D63/08—Component parts or accessories
    • 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
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

The invention relates to the technical field of power equipment, and particularly discloses an electric full trailer which comprises a trailer frame, wherein a traction mechanism is arranged at the front end of the trailer frame, and a front bearing wheel and a rear bearing wheel are arranged at the bottom of the trailer frame; the bottom of the trailer frame is also provided with a drive axle bearing wheel, and the trailer frame is also provided with an electric drive system and an energy storage system; the electric drive system comprises an electric drive axle and a drive motor, wherein the electric drive axle is connected with the drive axle bearing wheel, and the drive motor enables the drive axle bearing wheel to rotate through the electric drive axle; the energy storage system comprises a power battery, a gas storage bottle, an electric inflating pump and an all-in-one controller; the all-in-one controller is used for distributing high-voltage power output by the power battery to the electric inflating pump; the gas storage bottle is used for storing high-pressure gas provided by the electric inflating pump and providing a gas source for the electric full trailer. The electric full trailer provided by the invention is provided with the electric drive system and the energy storage system, has a drive function, and can well support remote cargo transportation.

Description

Electric full trailer
Technical Field
The invention relates to the technical field of power equipment, in particular to an electric full trailer.
Background
With the annual increase of global carbon emission requirements, the national level implements a system mainly controlled by carbon intensity and assisted by controlling the total amount of carbon emission, and supports conditional places, key industries and key enterprises to reach carbon emission peaks at first. In this large background, the green transportation transformation will greatly pull the new energy capacity demands including new energy heavy trucks.
The existing new energy heavy truck is used for transporting, and the electric quantity of a battery carried by a traction head is limited, so that long-distance cargo transportation cannot be well supported, and the conventional trailer is not used for carrying the battery because a cargo carrying part of the trailer is placed on the trailer, so that long-distance cargo transportation cannot be well realized.
Disclosure of Invention
The invention aims to provide an electric full trailer with an electric drive system and an energy storage system, which has a drive function and can well support long-distance cargo transportation.
The invention is realized by the following technical scheme:
an electric full trailer comprises a trailer frame, wherein a traction mechanism is arranged at the front end of the trailer frame, and a front bearing wheel and a rear bearing wheel are arranged at the bottom of the trailer frame; the bottom of the trailer frame is also provided with a drive axle bearing wheel, and the trailer frame is also provided with an electric drive system and an energy storage system;
the electric drive system comprises an electric drive axle and a drive motor, wherein the electric drive axle is connected with a drive axle bearing wheel, and the drive motor enables the drive axle bearing wheel to rotate through the electric drive axle;
the energy storage system comprises a power battery, a gas storage bottle, an electric inflating pump and an all-in-one controller; the all-in-one controller is used for distributing high-voltage power output by the power battery to the electric inflating pump; the gas storage bottle is used for storing high-pressure gas provided by the electric inflating pump and providing a gas source for the electric full trailer.
The drive axle bearing wheel is an electric drive axle device special for heavy truck, and can drive a vehicle to run through motor work; the driving motor, the electric drive axle and the drive axle bearing wheels form a driving system of the full trailer; the gas storage cylinder can store high-pressure gas provided by the electric inflating pump, can provide a gas source required by braking for a full trailer, can provide braking auxiliary force for the whole trailer during driving, can be opened in situ when necessary, and can realize vehicle moving and vehicle moving under the condition of no external gas source.
The full trailer with the electric drive system and the energy storage system can provide auxiliary power for the vehicle during running, and the vehicle can better meet the requirements of a driver during overtaking or climbing. In addition, when the vehicle slides down a long downhill and brakes, the vehicle can realize braking energy recovery and sliding energy recovery due to the existence of an electric drive and energy storage system, so that the energy utilization efficiency is improved.
Further, the front bearing wheel is driven by a servo motor to realize steering.
The existing full trailer does not have a steering function, and the electric full trailer is provided with three axles, namely a front bearing wheel, a driving axle and a rear bearing wheel, wherein the front bearing wheel can be driven by a servo motor to realize steering, so that the electric full trailer has the steering function and can be better suitable for steering of a traction head.
Further, the bottom on the trailer frame is provided with the bearing contact surface, the bottom of bearing contact surface is provided with a suspension system, the suspension system is connected with the front bearing wheel through the axletree, the bearing contact surface is driven by the servo motor and generates relative rotary displacement with the trailer frame.
Further, the vehicle control system also comprises a control unit, wherein the control unit comprises a vehicle controller and a motor controller;
the motor controller is connected with the all-in-one controller through a high-voltage wire harness and is used for inverting direct current into three-phase alternating current and supplying power for the driving motor;
the whole vehicle controller is used for collecting working signals and controlling the motor controller to work according to the working signals; the working signal is an accelerator pedal signal of a traction locomotive or a working instruction of a remote control signal receiver.
The electric full trailer is suitable for the following two modes:
under the general mode, the tractor head is used for pulling the full trailer, and the whole vehicle controller collects an accelerator pedal signal to send a working instruction to the motor controller, so that the motor works and the vehicle is driven to run.
In the remote control mode, the whole vehicle controller receives a working instruction of the remote control signal receiver to control the work of the vehicle motor controller and the work of the steering servo motor under the condition that the traction vehicle head does not exist.
Further, the control unit further includes a wheel speed sensor;
the wheel speed sensor is used for collecting wheel speed signals of the traction locomotive in real time and transmitting the collected wheel speed signals to the whole vehicle controller;
and the whole vehicle controller sends a current optimal torque demand and a moment rotation speed limit instruction of the driving motor to the motor controller according to the received wheel speed signal and the efficiency MAP graph of the driving motor, and the motor controller adjusts the driving motor according to the instruction of the whole vehicle controller.
The MAP of the efficiency of the drive motor is a characteristic operating curve of each motor itself, which corresponds to a capacity attribute of the system itself.
The synchronous rotation of the drive axle bearing wheels in the electric full trailer and the wheels in the traction locomotive can be well realized through the arrangement.
Further, each wheel of the traction locomotive is provided with a wheel speed sensor, the plurality of wheel speed sensors transmit collected wheel speed signals to a host, and the host transmits the wheel speed signals to a whole vehicle controller.
Further, when the front bearing wheel is driven by the servo motor to realize steering, the control unit further comprises an infrared module;
the infrared module is used for judging steering signals of the traction locomotive according to the infrared signals and transmitting the acquired steering signals to the whole vehicle controller, and the whole vehicle controller controls steering of the servo motor according to the steering signals.
Further, a radiator for cooling the driving motor is arranged on the trailer frame.
The radiator can provide heat radiation for the electric drive system to ensure that the electric drive system works in a proper temperature range.
Further, the all-in-one controller is connected with a direct current quick charging socket and an alternating current slow charging socket through a direct current quick charging wire harness and an alternating current slow charging wire harness respectively.
The electric full trailer is provided with the fast charging and slow charging functions, the electric full trailer can be connected with the charging pile for charging when needed, the fast charging can meet the high-power short-time battery charging function, and the slow charging can be used for carrying out low-current long-time battery charging when the vehicle stops for rest at night.
Further, the drive axle bearing wheels and the rear bearing wheels are adjacently arranged, the power batteries are arranged on two sides of the trailer frame and close to the electric drive axle, the gas storage bottle and the all-in-one controller are arranged in the middle of the trailer frame and are positioned between the power batteries on the two sides.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention relates to a full trailer with an electric drive system and an energy storage system, which can well support remote cargo transportation.
2. The invention fully considers the problem of matching the speed of the electric full trailer with the speed of the traction locomotive, and is provided with the wheel speed sensor for acquiring the wheel speed signal of the traction locomotive in real time, and the whole-vehicle controller sends corresponding instructions to the motor controller according to the received wheel speed signal to control the driving motor, so that the bearing wheels of the driving axle and the wheels of the traction locomotive have the same rotating speed.
3. The first bearing shaft of the electric full trailer has a rotating function, so that the steering function of the vehicle can be realized, and the center of the rotating shaft is provided with a servo motor, so that the steering rotation of the vehicle can be performed according to remote control operation.
4. The electric full trailer provided by the invention has the advantages that the axle load distribution on two sides and the axle load distribution on front and back sides are considered when the vehicle runs, the power batteries with larger weight are arranged on two sides of the trailer frame and are close to the middle electric drive axle when the batteries and accessories are arranged, so that the purpose of ensuring enough adhesive force of tires on the electric drive axle at any time is realized, the normal running of a road surface is ensured, and the risk of skidding is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a top view of an electric full trailer of the present invention;
FIG. 2 is a side view of the electric full trailer of the present invention;
FIG. 3 is a schematic view of an electric full trailer carrying container of the present invention;
FIG. 4 is a schematic view of a partial structure of a traction end of an electric full trailer according to the present invention;
FIG. 5 is a schematic diagram of the operation of the servo motor of the present invention;
FIG. 6 is a schematic diagram of the high-voltage drive system of the electric full trailer of the present invention;
FIG. 7 is a schematic diagram of an electric full trailer control system of the present invention;
fig. 8 is a schematic diagram of the speed control of the electric full trailer of the present invention.
In the drawings, the reference numerals and corresponding part names:
1-a traction mechanism; 2-front carrier wheels; 3-a trailer frame; 4-a power cell; 5-a gas storage bottle; 6-a heat sink; 7-an electric drive axle; 8-drive axle carrier wheels; 9-a motor controller; 10-rear carrier wheels; 11-direct current quick charging socket; 12-alternating-current slow charging socket; 13-a direct current quick charge harness; 14-alternating current slow charging wire bundles; 15-an all-in-one controller; 16-an electric inflating pump; 17-a servo motor; 18-axle; 19-a suspension system; 20-fixing bolts; 21-a load bearing contact surface; 171-motor housing; 172-motor shaft.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1:
as shown in fig. 1-8, an electric full trailer comprises a trailer frame 3, wherein a traction mechanism 1 is arranged at the front end of the trailer frame 3, the traction mechanism 1 is used for being connected with a tractor, and a front bearing wheel 2 and a rear bearing wheel 10 are arranged at the bottom of the trailer frame 3; the bottom of the trailer frame 3 is also provided with a drive axle bearing wheel 8, and the trailer frame 3 is also provided with an electric drive system and an energy storage system;
the electric drive system comprises an electric drive axle 7 and a drive motor, wherein the electric drive axle 7 is connected with a drive axle bearing wheel 8, the drive motor enables the drive axle bearing wheel 8 to rotate through the electric drive axle 7, and the drive motor, the electric drive axle 7 and the drive axle bearing wheel 8 jointly form a drive system of the electric full trailer and are used for driving the electric full trailer;
the energy storage system comprises a power battery 4, a gas storage bottle 5, an electric inflating pump 16 and an all-in-one controller 15; the all-in-one controller 15 is used for distributing high-voltage power output by the power battery 4 to the electric inflating pump 16; the gas storage bottle 5 is used for storing high-pressure gas provided by the electric inflating pump 16 and providing a gas source for the electric full trailer; the gas cylinder 5 can store high-pressure gas provided by the electric inflating pump 16, can provide a gas source required by braking for the full trailer, can provide braking auxiliary force for the whole trailer during driving, can be opened in situ when necessary, and can realize vehicle moving without an external gas source.
The electric full trailer of this embodiment is through driving axle bearing wheel 8, electric drive system and energy storage system on trailer frame 3, and electric full trailer belt driving system promptly to the driving method is the electric drive axle form of jackshaft, and the full trailer can carry out energy recuperation and auxiliary vehicle and drive according to actual vehicle operating mode when driving, sets up to avoid because the limited problem of supporting long-range cargo transportation that can not carry of traction locomotive electric quantity.
The tractor of the electric full trailer of the embodiment can be a new energy vehicle or a traditional fuel vehicle, and also can be a certain passenger car or a pick-up card meeting the requirements.
In a preferred case, for realizing the automatic control of the electric full trailer, the vehicle further comprises a control unit, wherein the control unit comprises a whole vehicle controller and a motor controller;
the motor controller is connected with the all-in-one controller 15 through a high-voltage wire harness and is used for inverting direct current into three-phase alternating current and supplying power for the driving motor;
the whole vehicle controller is used for collecting working signals and controlling the motor controller to work according to the working signals; the working signal is an accelerator pedal signal of a traction locomotive or a working instruction of a remote control signal receiver.
Under the general mode, the tractor head is used for pulling the full trailer, and the whole vehicle controller collects an accelerator pedal signal to send a working instruction to the motor controller, so that the motor works and the vehicle is driven to run.
In the remote control mode, the whole vehicle controller receives a working instruction of the remote control signal receiver to control the work of the vehicle motor controller under the condition that the traction vehicle head does not exist.
In a preferred case, the control unit further comprises a TBOX module, the TBOX module has functions of whole vehicle positioning and vehicle data uploading, and the built-in GPS module and the GSM flow card, namely, the electric full trailer of the embodiment is further provided with a network platform function, and remote positioning, vehicle speed monitoring and remote prompt operation functions can be achieved.
In a preferred case, a radiator 6 for cooling the drive motor is provided on the trailer frame 3 for radiating heat from the electric drive system.
In a preferred embodiment, the all-in-one controller 15 is connected to the dc fast charge sockets 11 and 12 and the ac slow charge socket via the dc fast charge wire harness 13 and the ac slow charge wire harness 14, respectively. The full trailer can be charged quickly or slowly, and the wave crest and wave trough difference of the power grid can be utilized, so that the economy is improved.
In a preferred case, the control unit further comprises a wheel speed sensor, considering that when the electric system works together with the traction vehicle head, the axle carrier wheel 8 connected with the electric drive axle 7 in the traction vehicle system may have a condition of different speed from the traction vehicle during working;
the wheel speed sensor is used for collecting wheel speed signals of the traction locomotive in real time and transmitting the collected wheel speed signals to the whole vehicle controller;
and the whole vehicle controller sends a current optimal torque demand and a moment rotation speed limit instruction of the driving motor to the motor controller according to the received wheel speed signal and the efficiency MAP graph of the driving motor, and the motor controller adjusts the driving motor according to the instruction of the whole vehicle controller.
In a preferred case, each wheel of the traction locomotive is provided with a wheel speed sensor, the plurality of wheel speed sensors transmit collected wheel speed signals to a host, and the host transmits the wheel speed signals to a whole vehicle controller.
When the vehicle control unit works, the vehicle control unit collects rotational speed signals uploaded by the wheel speed sensors sent to the bus by the host on the CAN bus, the rotational speed signals collected by the host are rotational speeds of all wheels, the rotational speed conditions of the wheels are completely represented, after the vehicle control unit receives the wheel speed signals sent by the host, the vehicle control unit CAN combine each signal with an efficiency MAP (MAP) of the driving motor to send the current optimal torque requirement and the moment rotational speed limit of the motor to the motor control unit, the motor control unit adjusts the motor according to the request of the vehicle control unit, and meanwhile, when the vehicle control unit brakes, the vehicle control unit CAN also start a braking torque request for the motor control unit according to the current wheel speed conditions so as to realize energy recovery and auxiliary braking.
The frame design of the full trailer belongs to the standard 40-ruler container design, two standard 20-ruler container boxes or one 40-ruler container can be carried, the function of transferring the container can be realized at a container terminal, and various cargoes can be supplemented in the container according to actual needs.
And through rational arrangement of the electric drive system and the energy storage system, the risk of skidding of the electric full trailer can be reduced. Illustratively, the drive axle carrier wheel 8 and the rear carrier wheel 10 are adjacently arranged, the power batteries 4 are arranged on two sides of the trailer frame 3 and are close to the electric drive axle 7, and the gas cylinder 5 and the all-in-one controller 15 are arranged in the middle of the trailer frame 3 and are positioned between the power batteries 4 on the two sides. In this embodiment, considering the two-side axle load distribution and the front-rear axle load distribution when the vehicle is running, the power battery 4 with larger weight is arranged on two sides of the trailer frame and near the middle electric drive axle 7 when the power battery 4 pool and the accessories are arranged, so as to ensure that the tires on the electric drive axle 7 have enough adhesive force at any time, ensure the normal running of the road surface and reduce the risk of skidding.
Example 2:
as shown in fig. 1 to 8, the present embodiment is based on embodiment 1, in which the front carrier wheel 2 is driven by a servo motor 17 to realize steering. Specifically, the bottom on the trailer frame 3 is provided with a bearing contact surface 21, the bottom of the bearing contact surface 21 is provided with a suspension system 19, the suspension system 19 is connected with the front bearing wheel 2 through an axle 18, and the bearing contact surface 21 is driven by a servo motor 17 to generate relative rotation displacement with the trailer frame 3.
In this embodiment, the front carrying wheel 2 is connected to the carrying contact surface 21 through the suspension system 19, rotation can be achieved between the carrying contact surface 21 and the trailer frame 3, the servo motor 17 includes a housing and a motor shaft, the housing of the servo motor 17 is connected to the carrying contact surface 21 through a fixing bolt 20, the motor shaft is connected to the trailer frame 3 through a fixing bolt 20, and when a working request is made by the servo motor 17, the servo motor 17 makes the carrying contact surface 21 and the trailer frame 3 rotate relatively, so as to achieve steering.
Namely, the first bearing shaft of the electric trailer, namely the front bearing wheel 2, is provided with a rotating function, so that the steering function of the vehicle can be realized, and the center of the rotating shaft is provided with a servo motor 17, so that the rotation of the steering of the vehicle can be performed according to remote control operation.
In a preferred case, the control unit further comprises an infrared module;
the infrared module is used for judging steering signals of the traction locomotive according to the infrared signals and transmitting the acquired steering signals to the whole vehicle controller, and the whole vehicle controller controls steering of the servo motor 17 according to the steering signals.
In this embodiment, the first bearing shaft of the electric full trailer has a rotation function, so that the steering function of the vehicle can be realized, and the center of the rotating shaft is provided with a servo motor 17, so that the rotation of the steering of the vehicle can be performed according to remote control operation.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are for understanding and reading only by those skilled in the art, and are not intended to limit the scope of the invention, so that any structural modifications, proportional changes, or size adjustments should fall within the scope of the invention without affecting the efficacy and achievement of the present invention. Also, the terms such as "upper", "lower", "left", "right", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.

Claims (10)

1. An electric full trailer comprises a trailer frame (3), wherein a traction mechanism (1) is arranged at the front end of the trailer frame (3), and a front bearing wheel (2) and a rear bearing wheel (10) are arranged at the bottom of the trailer frame (3); the electric power transmission device is characterized in that a drive axle bearing wheel (8) is further arranged at the bottom of the trailer frame (3), and an electric drive system and an energy storage system are further arranged on the trailer frame (3);
the electric drive system comprises an electric drive axle (7) and a drive motor, wherein the electric drive axle (7) is connected with a drive axle bearing wheel (8), and the drive motor enables the drive axle bearing wheel (8) to rotate through the electric drive axle (7);
the energy storage system comprises a power battery (4), a gas storage bottle (5), an electric inflating pump (16) and an all-in-one controller (15); the all-in-one controller (15) is used for distributing high-voltage power output by the power battery (4) to the electric inflating pump (16); the gas storage bottle (5) is used for storing high-pressure gas provided by the electric inflating pump (16) and providing a gas source for the electric full trailer.
2. An electric full trailer according to claim 1, characterized in that the front carrier wheel (2) is driven by a servo motor (17) for steering.
3. An electric full trailer according to claim 2, characterized in that the bottom of the trailer frame (3) is provided with a bearing contact surface (21), the bottom of the bearing contact surface (21) is provided with a suspension system (19), the suspension system (19) is connected with the front bearing wheel (2) through an axle (18), and the bearing contact surface (21) is driven by a servo motor (17) to perform relative rotational displacement with the trailer frame (3).
4. The electric full trailer of claim 1, further comprising a control unit, wherein the control unit comprises a whole vehicle controller and a motor controller;
the motor controller is connected with the all-in-one controller (15) through a high-voltage wire harness and is used for inverting direct current into three-phase alternating current and supplying power for the driving motor;
the whole vehicle controller is used for collecting working signals and controlling the motor controller to work according to the working signals; the working signal is an accelerator pedal signal of a traction locomotive or a working instruction of a remote control signal receiver.
5. The electric full trailer of claim 4, wherein the control unit further comprises a wheel speed sensor;
the wheel speed sensor is used for collecting wheel speed signals of the traction locomotive in real time and transmitting the collected wheel speed signals to the whole vehicle controller;
and the whole vehicle controller sends a current optimal torque demand and a moment rotation speed limit instruction of the driving motor to the motor controller according to the received wheel speed signal and the efficiency MAP graph of the driving motor, and the motor controller adjusts the driving motor according to the instruction of the whole vehicle controller.
6. The electric full trailer as claimed in claim 5, wherein each wheel of the traction head is provided with a wheel speed sensor, the plurality of wheel speed sensors transmit collected wheel speed signals to the host, and the host transmits the collected wheel speed signals to the whole vehicle controller.
7. An electric full trailer according to claim 4, characterized in that the control unit further comprises an infrared module when the front carrier wheel (2) is driven by a servo motor (17) for steering;
the infrared module is used for judging steering signals of the traction locomotive according to the infrared signals and transmitting the acquired steering signals to the whole vehicle controller, and the whole vehicle controller controls steering of the servo motor (17) according to the steering signals.
8. An electric full trailer according to claim 1, characterized in that the trailer frame (3) is provided with a radiator (6) for cooling the drive motor.
9. An electric full trailer according to claim 1, characterized in that the all-in-one controller (15) is connected with direct current fast charging sockets (11) and (12) alternating current slow charging sockets through a direct current fast charging wire harness (13) and an alternating current slow charging wire harness (14), respectively.
10. An electric full trailer according to any one of claims 1-9, characterized in that the drive axle carrier wheel (8) and the rear carrier wheel (10) are arranged adjacently, the power cells (4) are arranged on both sides of the trailer frame (3) and close to the electric drive axle (7), and the gas cylinder (5) and the all-in-one controller (15) are arranged in the middle of the trailer frame (3) between the power cells (4) on both sides.
CN202310244009.6A 2023-03-14 2023-03-14 Electric full trailer Pending CN116238307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310244009.6A CN116238307A (en) 2023-03-14 2023-03-14 Electric full trailer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310244009.6A CN116238307A (en) 2023-03-14 2023-03-14 Electric full trailer

Publications (1)

Publication Number Publication Date
CN116238307A true CN116238307A (en) 2023-06-09

Family

ID=86623994

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310244009.6A Pending CN116238307A (en) 2023-03-14 2023-03-14 Electric full trailer

Country Status (1)

Country Link
CN (1) CN116238307A (en)

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