CN113787619B - Coaxial double-motor driving system and concrete mixer truck - Google Patents
Coaxial double-motor driving system and concrete mixer truck Download PDFInfo
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- CN113787619B CN113787619B CN202111015797.9A CN202111015797A CN113787619B CN 113787619 B CN113787619 B CN 113787619B CN 202111015797 A CN202111015797 A CN 202111015797A CN 113787619 B CN113787619 B CN 113787619B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
- B28C5/422—Controlling or measuring devices
- B28C5/4224—Roll-over prevention
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
- B28C5/421—Drives
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Power Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention is suitable for the field of mixer trucks and provides a coaxial dual-motor driving system and a concrete mixer truck, wherein whether the state information of the concrete mixer truck is greater than a preset state value or not is judged according to the acquired state information of the concrete mixer truck and road condition information before running; when the state information of the concrete mixer truck is not greater than the preset state value, maintaining the running state of a first motor of the concrete mixer truck; when the state information of the concrete mixer truck is larger than a preset state value, controlling the second motor to be electrified and starting the second motor of the concrete mixer truck while maintaining the running state of the first motor of the concrete mixer truck; and sending speed control information to a motor of the concrete mixer truck according to road condition information in front of driving. Therefore, the stirring speed and the stirring direction of the stirring motor in the concrete mixer can be adjusted according to the running condition of the concrete mixer and the road condition in front of running, and the risk of side turning or bumping and leakage of concrete of the concrete mixer is reduced.
Description
Technical Field
The invention belongs to the field of mixer trucks, and particularly relates to a coaxial dual-motor driving system and a concrete mixer truck.
Background
With the rapid development of concrete production and construction technology, some countries have gradually adopted the way of centralized concrete mixing and commercial supply, where concrete is provided by a special concrete mixing plant and then transported to various construction sites by a concrete mixer truck.
The working principle of the traditional concrete mixer truck is as follows: the power of the automobile chassis is taken out through the power takeoff device, the variable pump of the hydraulic system is driven, mechanical energy is converted into hydraulic energy and transmitted to the motor, the motor drives the speed reducer, and the speed reducer drives the stirring device to stir concrete. In recent years, due to the advantages of economy, environmental protection, low noise and the like of pure electric control, the pure electric control technology also begins to be popularized and applied in the special vehicle industry, and a control system on a concrete mixer truck is particularly suitable for adopting pure electric control, so that the aims of saving energy and reducing the operation cost can be achieved.
In the practical application process, the electric control concrete mixer truck often comes in and goes out on the workplace, the working environment is severe, the up-and-down fluctuation or the slope of left-and-right inclination of the pavement is possibly large, the overall quality of the concrete mixer truck is large after the concrete with certain weight is loaded, and the risk of side turning or bumping and leaking of the concrete is easy to occur when the concrete mixer truck is driven on the pavements.
Disclosure of Invention
The embodiment of the invention provides a coaxial dual-motor driving system and a concrete mixer truck, and aims to solve the problem that the concrete mixer truck is prone to side turning or bumping and leaking when running on a road surface in a severe environment.
The embodiment of the present invention is implemented as follows, and in one aspect, a coaxial dual-motor driving system includes:
and the information acquisition module is used for acquiring the state information of the concrete mixer truck and the road condition information in front of the concrete mixer truck.
And the judging module is used for judging whether the state information of the concrete mixer truck is greater than a preset state value.
The motor forward rotation control module is used for maintaining the running state of a first motor of the concrete mixer when the state information of the concrete mixer is not greater than a preset state value; when the state information of the concrete mixer truck is larger than the preset state value, the second motor of the concrete mixer truck is started while the running state of the first motor of the concrete mixer truck is maintained.
And the speed control module is used for sending speed control information to a motor of the concrete mixer truck according to the road condition information in front of driving.
As a modified scheme of the invention: the information acquisition module specifically comprises:
and the state information acquisition unit is used for acquiring the load value, the feeding and discharging information and the starting and stopping information of the concrete mixer.
And the road condition information acquisition unit is used for acquiring the undulation gradient value and the inclination gradient value of the road in front of the vehicle.
As a further improvement of the invention: the judging module specifically comprises:
and the first judging unit is used for judging whether the load value is greater than a first set value or not.
And the second judging unit is used for judging whether the load value is larger than a second set value or not.
As another improvement of the invention: the motor positive rotation control module specifically comprises:
and the first load value monitoring unit is used for identifying the load value of the concrete mixer in the forward rotation process in real time when the concrete mixer is in a parking and feeding state according to the feeding and discharging information and the start and stop information.
The motor forward rotation control unit is used for starting a first motor of the concrete mixer truck when the load value is not greater than a first set value; when the load value is larger than a first set value, a second motor of the concrete mixer is started while the first motor of the concrete mixer is kept started; and the control device is also used for closing the second motor and sending a low-speed operation control signal to the first motor when recognizing that the concrete mixer truck does not feed or discharge according to the feeding and discharging information.
And the full-load reminding unit is used for sending a full-load signal when the load value is greater than a second set value.
As a further scheme of the invention: coaxial two motor drive system still includes motor reversal control module, motor reversal control module specifically includes:
the reverse rotation monitoring unit is used for identifying that the concrete mixer is in a parking and discharging state according to the feeding and discharging information and the starting and stopping information; a reverse rotation control signal is sent to the first motor.
And the second load value monitoring unit is used for monitoring the load value of the concrete mixer truck in the reverse rotation process in real time.
The motor reverse rotation control unit is used for sending speed control information to the first motor according to the size of the load value; the speed control information controls the rotating speed of the first motor to gradually increase along with the reduction of the load value.
As a further scheme of the invention: the speed control module specifically comprises:
the rolling gradient speed conversion unit is used for inquiring a rolling gradient speed conversion table according to the rolling gradient value of the road and converting the rolling gradient value of the road into a corresponding first motor rotating speed value; the greater the heave gradient the lower the rotational speed.
And the ramp rotating speed adjusting unit is used for sending the rotating speed value of the first motor to the first motor and adjusting the rotating speed of the first motor.
As an optimization scheme of the invention: the speed control module specifically comprises:
and the inclination direction judging unit is used for judging whether the inclination direction of the concrete mixer truck is consistent with the positive rotation direction of the first motor or not according to the inclination gradient value of the road.
And the inclined slope value judging unit is used for judging whether the inclined slope value of the road is greater than a preset slope value or not when the inclined direction of the concrete mixer truck is consistent with the forward rotation direction of the first motor, and controlling the first motor to stop rotating when the inclined slope value of the road is greater than the preset slope value.
The first inclination speed conversion unit is used for inquiring the first inclination speed conversion table when the inclination value of the road is not greater than the preset inclination value, and converting the inclination value of the road into a corresponding first motor rotating speed value; in the first inclination speed conversion table, the larger the inclination value is, the smaller the first motor rotation speed value is.
And the inclined road surface rotating speed adjusting unit is used for sending the rotating speed value of the first motor to the first motor and adjusting the rotating speed of the first motor.
As another scheme of the invention: the speed control module further comprises:
the second inclination speed conversion unit is used for inquiring a second inclination speed conversion table and converting the inclination gradient value of the road into a corresponding first motor rotating speed value when the inclination direction of the concrete mixer truck is inconsistent with the forward rotation direction of the first motor; in the second inclination speed conversion table, the first motor rotation speed value is larger as the inclination value is larger.
In another aspect, a concrete mixer vehicle includes:
and the coaxial double motors are arranged on the stirring vehicle and are used for controlling the rotation of the stirring barrel in a mutually matched manner.
And the stirring vehicle-mounted weight monitoring equipment is arranged on the stirring barrel and is used for monitoring the weight of the concrete in the stirring barrel.
And the road condition monitoring equipment is arranged on the agitating lorry and used for monitoring the road condition of the road in front of the agitating lorry.
The coaxial double-motor driving system is used for controlling the coaxial double motors, the driving motor of the mixing truck, the mixing truck-mounted weight monitoring equipment and the road condition monitoring equipment to work cooperatively.
The invention has the beneficial effects that: judging whether the state information of the concrete mixer truck is larger than a preset state value or not according to the acquired state information of the concrete mixer truck and road condition information before driving; when the state information of the concrete mixer truck is not greater than the preset state value, maintaining the running state of a first motor of the concrete mixer truck; when the state information of the concrete mixer truck is larger than a preset state value, controlling the second motor to be electrified and starting the second motor of the concrete mixer truck while maintaining the running state of the first motor of the concrete mixer truck; and sending speed control information to a motor of the concrete mixer truck according to road condition information in front of driving. Therefore, the stirring speed and the stirring direction of the stirring motor in the concrete mixer truck can be adjusted according to the running conditions of the concrete mixer truck, such as rotating speed, planting, discharging or feeding, and the like in combination with the road condition in front of running, so that the risk of side turning or bumping and leakage of concrete of the concrete mixer truck is reduced.
Drawings
FIG. 1 is a diagram of an architecture of a coaxial dual motor drive system operating environment;
FIG. 2 is a schematic diagram of the internal structure of a coaxial dual-motor driving system;
FIG. 3 is a schematic diagram of an internal structure of a motor forward rotation control module in a coaxial dual-motor driving system;
FIG. 4 is a schematic diagram of an internal structure of a motor reversal control module in a coaxial dual-motor driving system;
fig. 5 is a schematic diagram of the internal structure of a speed control module in a coaxial dual-motor drive system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in 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 invention and are not intended to limit the invention.
According to the method, whether the state information of the concrete mixer truck is larger than a preset state value or not is judged according to the acquired state information of the concrete mixer truck and road condition information before driving; when the state information of the concrete mixer truck is not greater than the preset state value, maintaining the running state of a first motor of the concrete mixer truck; when the state information of the concrete mixer truck is larger than a preset state value, controlling the second motor to be electrified and starting the second motor of the concrete mixer truck while maintaining the running state of the first motor of the concrete mixer truck; and sending speed control information to a motor of the concrete mixer truck according to road condition information in front of driving. Thereby can be according to the operation conditions of concrete mixer truck for example rotational speed, plant, ejection of compact or feeding etc. combine the road conditions in the place ahead of going again, the stirring speed and the stirring direction of agitator motor in the adjustment concrete mixer truck reduce the risk that the concrete mixer truck takes place to turn on one's side or the concrete is jolted and is leaked.
Fig. 1 shows an operation environment architecture diagram of a coaxial dual-motor drive system according to an embodiment of the present invention, where a truck-mounted weight monitoring device 2 and a road condition monitoring device 3 upload state information of a concrete mixer truck and road condition information before driving to the dual-motor drive system, and send control information to a coaxial dual-motor 1 through analysis and comparison of state information and road condition information by modules inside the system, so as to control the rotation speed, rotation direction, and start and stop of a first motor and a second motor in the coaxial dual-motor 1, so that the two motors work cooperatively, thereby increasing the work efficiency and improving the safety.
Fig. 2 shows an internal structural schematic diagram of a coaxial dual-motor driving system according to an embodiment of the present invention, where the coaxial dual-motor driving system includes:
the information acquiring module 100 is configured to acquire status information of the concrete mixer and road condition information before driving.
And the judging module 200 is used for judging whether the state information of the concrete mixer is greater than a preset state value.
The motor forward rotation control module 300 is used for maintaining the running state of a first motor of the concrete mixer when the state information of the concrete mixer is not greater than a preset state value; when the state information of the concrete mixer truck is larger than the preset state value, the second motor is controlled to be electrified to start the second motor of the concrete mixer truck while the running state of the first motor of the concrete mixer truck is maintained.
And the speed control module 400 is used for sending speed control information to a motor of the concrete mixer truck according to road condition information in front of driving.
In a case of this embodiment, the information obtaining module 100 specifically includes:
and the state information acquisition unit 101 is used for acquiring the load value, the feeding and discharging information and the start and stop information of the concrete mixer.
The road condition information acquiring unit 102 is configured to acquire a rolling gradient value and an inclination gradient value of a road ahead of the vehicle.
In one case of this embodiment, the determining module 200 specifically includes:
a first determining unit 201, configured to determine whether the load value is greater than a first set value.
The second determining unit 202 is configured to determine whether the load value is greater than a second set value.
Fig. 3 shows a schematic diagram of an internal structure of a motor forward rotation control module in a coaxial dual-motor driving system according to an embodiment of the present invention, where the motor forward rotation control module 300 specifically includes:
and the first load value monitoring unit 301 is configured to monitor, in real time, a load value of the concrete mixer during forward rotation when the concrete mixer is in a parking and feeding state according to the feeding and discharging information and the start and stop information.
The motor forward rotation control unit 302 is used for starting a first motor of the concrete mixer when the load value is not greater than a first set value; when the load value is larger than a first set value, the second motor is controlled to be electrified while the first motor of the concrete mixer truck is kept started, and the second motor of the concrete mixer truck is started; and the control device is also used for controlling the second motor to be powered off, closing the second motor and sending a low-speed operation control signal to the first motor when the concrete mixer truck is identified not to feed or discharge according to the feeding and discharging information.
And a full load reminding unit 303, configured to send a full load signal when the load value is greater than the second set value.
Fig. 4 shows a schematic diagram of an internal structure of a motor reversal control module in a coaxial dual-motor driving system according to an embodiment of the present invention, where the coaxial dual-motor driving system further includes a motor reversal control module 500, and the motor reversal control module 500 specifically includes:
the reverse rotation monitoring unit 501 is used for identifying that the concrete mixer truck is in a stopping and discharging state according to the feeding and discharging information and the starting and stopping information; a reverse rotation control signal is sent to the first motor.
And a second load value monitoring unit 502, configured to monitor a load value of the concrete mixer during reverse rotation in real time.
And a motor reverse rotation control unit 503, configured to send speed control information to the first motor according to the size of the load value. The speed control information controls the rotating speed of the first motor to gradually increase along with the reduction of the load value.
Fig. 5 shows a schematic diagram of an internal structure of a speed control module in a coaxial dual-motor driving system according to an embodiment of the present invention, where the speed control module 400 specifically includes:
the rough slope speed conversion unit 401 is configured to query a rough slope speed conversion table according to a rough slope value of a road, and convert the rough slope value of the road into a corresponding first motor rotation speed value; the greater the heave gradient the lower the rotational speed.
And the ramp rotating speed adjusting unit 402 is configured to send the rotating speed value of the first motor to the first motor, and adjust the rotating speed of the first motor.
In one aspect of this embodiment, the speed control module specifically includes:
an inclination direction determination unit 403, configured to determine whether an inclination direction of the concrete mixer truck is consistent with the forward rotation direction of the first motor according to the inclination gradient value of the road.
And the inclined slope value judging unit 404 is used for judging whether the inclined slope value of the road is greater than a preset slope value or not when the inclined direction of the concrete mixer truck is consistent with the forward rotation direction of the first motor, and controlling the first motor to stop rotating when the inclined slope value of the road is greater than the preset slope value.
A first inclination speed conversion unit 405, configured to query a first inclination speed conversion table when the inclination value of the road is not greater than a preset inclination value, and convert the inclination value of the road into a corresponding first motor rotation speed value; in the first inclination speed conversion table, the first motor rotation speed value is smaller as the inclination value is larger.
And the inclined road surface rotating speed adjusting unit 406 is used for sending the rotating speed value of the first motor to the first motor and adjusting the rotating speed of the first motor.
In one aspect of this embodiment, the speed control module further includes:
the second inclination speed conversion unit 407 is configured to query a second inclination speed conversion table and convert the inclination value of the road into a corresponding first motor rotation speed value when the inclination direction of the concrete mixer truck is inconsistent with the forward rotation direction of the first motor; in the second inclination speed conversion table, the larger the inclination value is, the larger the first motor rotation speed value is.
In addition to the above-mentioned various functions and modules, the coaxial dual-motor driving system may further include a discharging transfer device monitoring module 600, where the discharging transfer device monitoring module 600 includes:
the in-place monitoring unit 601 of the unloading transfer device is used for monitoring whether the unloading transfer device reaches the position below the discharge port of the concrete transfer vehicle, sending reverse rotation information to the first motor and controlling the first motor to reversely rotate.
The unloading and transferring equipment volume monitoring unit 602 is used for monitoring the containing volume of the unloading and transferring equipment when the first motor starts to rotate reversely, sending pause information to the first motor when the containing volume of the unloading and transferring equipment is smaller than a set volume, controlling the first motor to stop rotating, sending reminding information that the volume is full to the unloading and transferring equipment, and reminding an operator of the unloading and transferring equipment to transfer the unloading and transferring equipment to a dumping position.
In addition, a concrete mixer truck comprising:
and the coaxial double motors 1 are arranged on the stirring vehicle and are used for controlling the rotation of the stirring barrel in a mutually matched manner.
And the stirring vehicle-mounted weight monitoring device 2 is arranged on the stirring barrel and used for monitoring the weight of concrete in the stirring barrel.
And the road condition monitoring equipment 3 is arranged on the mixer truck and used for monitoring the road condition of the road in front of the mixer truck.
The coaxial double-motor driving system is used for controlling the coaxial double motors, the driving motor of the mixing truck, the mixing truck-mounted weight monitoring equipment and the road condition monitoring equipment to work cooperatively.
The two motors are coaxially designed, the rotor shafts of the two motors are connected together, and meanwhile, the structure of the original single motor driving system is reserved to the greatest extent, so that the development cost is greatly reduced, and the development period is shortened; and controlling the two motors to work independently or together according to different rotating speed requirements of the mixing drum, so as to realize switching between different working modes. The design can greatly reduce the volume of the motor, and the two small motors can meet the power requirement of the stirring drum, so that the total weight and the cost of the motors are greatly reduced; meanwhile, in any rotating speed interval, the motor combination can provide sufficient torque support and power output for the system, and the motors can work in respective high-efficiency areas for a long time. In addition, two motors in the coaxial dual-motor driving system can work in a mutual backup mode, the problem that the mixing drum stops rotating due to the fact that one motor control system fails is overcome, and the safety performance of rotation of the mixing drum is improved.
In order to load the above system and to operate it smoothly, the system may include more or less components than those described above, or combine some components, or different components, in addition to the various modules described above, for example, input and output devices, network access devices, buses, processors, memories, and the like.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like which is the control center for the system and which connects the various parts of the overall user terminal using various interfaces and lines.
The memory may be used to store a computer and system programs and/or modules, and the processor may implement various functions of the client by running or executing the computer programs and/or modules stored in the memory and calling data stored in the memory. The memory mainly comprises a storage program area and a storage data area, wherein the storage program area can store an operating system, application programs (such as an information acquisition template display function, a product information publishing function and the like) required by at least one function and the like; the storage data area may store data created according to the use of the berth-state display system (e.g., product information acquisition templates corresponding to different product types, product information that needs to be issued by different product providers, etc.), and the like. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
It should be understood that, although the respective modules/units in the block diagrams of the embodiments of the present invention are shown in sequence as indicated by the arrows, the modules/units are not necessarily executed in sequence as indicated by the arrows. The execution of these modules/units is not limited to a strict order unless explicitly stated herein, and these modules/units may be executed in other orders. Moreover, at least a part of modules/units in various embodiments may include multiple sub-modules/units or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of execution of the sub-modules/units or stages is not necessarily sequential, but may be performed alternately or alternatively with other modules/units or at least a part of sub-modules/units or stages of other modules/units.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A coaxial dual motor drive system, the system comprising:
the information acquisition module is used for acquiring the state information of the concrete mixer truck and the road condition information before driving;
the judging module is used for judging whether the state information of the concrete mixer truck is larger than a preset state value or not;
the motor forward rotation control module is used for maintaining the running state of a first motor of the concrete mixer when the state information of the concrete mixer is not greater than a preset state value; when the state information of the concrete mixer truck is larger than a preset state value, a second motor of the concrete mixer truck is started while the running state of a first motor of the concrete mixer truck is maintained;
the speed control module is used for sending speed control information to a motor of the concrete mixer truck according to road condition information in front of driving;
the information acquisition module specifically includes:
the state information acquisition unit is used for acquiring the load value, the feeding and discharging information and the starting and stopping information of the concrete mixer truck;
a road condition information acquisition unit for acquiring a rolling gradient value and an inclination gradient value of a road ahead of a vehicle;
the speed control module specifically comprises:
the inclination direction judging unit is used for judging whether the inclination direction of the concrete mixer truck is consistent with the forward rotation direction of the first motor or not according to the inclination gradient value of the road;
the slope gradient value judging unit is used for judging whether the slope gradient value of the road is larger than a preset gradient value or not when the slope gradient direction of the concrete mixer truck is consistent with the forward rotation direction of the first motor, and controlling the first motor to stop rotating when the slope gradient value of the road is larger than the preset gradient value;
the first inclination speed conversion unit is used for inquiring the first inclination speed conversion table when the inclination value of the road is not larger than the preset inclination value, and converting the inclination value of the road into a corresponding first motor rotating speed value; in the first inclination slope speed conversion table, the larger the inclination slope value is, the smaller the first motor rotation speed value is;
the inclined road surface rotating speed adjusting unit is used for sending the rotating speed value of the first motor to the first motor and adjusting the rotating speed of the first motor;
the speed control module further comprises:
the second inclination speed conversion unit is used for inquiring a second inclination speed conversion table and converting the inclination gradient value of the road into a corresponding first motor rotating speed value when the inclination direction of the concrete mixer truck is inconsistent with the forward rotation direction of the first motor; in the second inclination speed conversion table, the larger the inclination value is, the larger the first motor rotation speed value is;
the judging module specifically comprises:
a first judgment unit for judging whether the load value is greater than a first set value;
the second judging unit is used for judging whether the load value is larger than a second set value or not;
the motor positive rotation control module specifically comprises:
the first load value monitoring unit is used for identifying the load value of the concrete mixer in the stopping and feeding state according to the feeding and discharging information and the starting and stopping information and monitoring the load value of the concrete mixer in the forward rotation in real time;
the motor forward rotation control unit is used for starting a first motor of the concrete mixer truck when the load value is not greater than a first set value; when the load value is larger than a first set value, a second motor of the concrete mixer is started while the first motor of the concrete mixer is kept started; the second motor is also used for turning off the second motor and sending a low-speed operation control signal to the first motor when the concrete mixer is identified not to be fed or discharged according to the feeding and discharging information;
the full-load reminding unit is used for sending a full-load signal when the load value is greater than a second set value;
coaxial two motor drive system still includes motor reversal control module, motor reversal control module specifically includes:
the reverse rotation monitoring unit is used for identifying that the concrete mixer truck is in a stopping and discharging state according to the feeding and discharging information and the starting and stopping information; sending a reverse rotation control signal to the first motor;
the second load value monitoring unit is used for monitoring the load value of the concrete mixer truck in real time when the concrete mixer truck rotates reversely;
the motor reverse rotation control unit is used for sending speed control information to the first motor according to the size of the load value; the speed control information controls the rotating speed of the first motor to gradually increase along with the reduction of the load value.
2. The coaxial dual-motor drive system of claim 1, wherein the speed control module specifically comprises:
the rolling gradient speed conversion unit is used for inquiring a rolling gradient speed conversion table according to the rolling gradient value of the road and converting the rolling gradient value of the road into a corresponding first motor rotating speed value; the larger the heave gradient is, the lower the rotation speed is;
and the ramp rotating speed adjusting unit is used for sending the rotating speed value of the first motor to the first motor and adjusting the rotating speed of the first motor.
3. A concrete mixer truck, comprising:
the coaxial double motors are arranged on the stirring vehicle and are used for controlling the rotation of the stirring barrel in a mutual matching manner;
the mixing vehicle-mounted weight monitoring device is arranged on the mixing tank and is used for monitoring the weight of concrete in the mixing tank;
the road condition monitoring equipment is arranged on the mixer truck and used for monitoring the road condition of a road in front of the mixer truck;
the coaxial dual-motor drive system of claim 1 or 2, used for controlling the co-operation of the coaxial dual motors, the driving motor of the mixer truck, the heavy monitoring equipment of the mixer truck and the road condition monitoring equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015797.9A CN113787619B (en) | 2021-08-31 | 2021-08-31 | Coaxial double-motor driving system and concrete mixer truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111015797.9A CN113787619B (en) | 2021-08-31 | 2021-08-31 | Coaxial double-motor driving system and concrete mixer truck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113787619A CN113787619A (en) | 2021-12-14 |
| CN113787619B true CN113787619B (en) | 2023-03-21 |
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| JP5825719B2 (en) * | 2012-03-22 | 2015-12-02 | Ｋｙｂ株式会社 | Mixer drum drive device |
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