CN112193181A - Distributed-based uploading control system and control method thereof - Google Patents
Distributed-based uploading control system and control method thereof Download PDFInfo
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- CN112193181A CN112193181A CN202010958402.8A CN202010958402A CN112193181A CN 112193181 A CN112193181 A CN 112193181A CN 202010958402 A CN202010958402 A CN 202010958402A CN 112193181 A CN112193181 A CN 112193181A
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- 238000000034 method Methods 0.000 title claims description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 14
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 230000001629 suppression Effects 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
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- 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
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Abstract
The invention discloses a distributed-type-based loading control system, which is characterized in that a distributed-type loading domain control unit is adopted and is divided into a cab domain control unit, a tail domain control unit and an extensible domain control unit according to the installation position, the loading domain control unit comprises a plastic shell, an operation button and a control panel, two PIN PINs are arranged on the loading domain control unit and are used as address lines, the cab domain control unit acquires opening and closing signals, cab control buttons, interface addresses and loading system type selection information and informs a driver of the working state of the loading system through sound and an indicator light by inputting high and low level differentiation, and the tail domain control unit acquires the opening and closing signals, the tail domain control buttons, the interface addresses and loading actuating mechanism state data and controls the action of a loading actuating mechanism. The invention can flexibly select the loading function through the electrical function interface of the loading domain control unit, can be suitable for various pure electric special vehicles without changing the loading control system, and is convenient and reliable.
Description
The technical field is as follows:
the invention relates to a distributed-type-based uploading control system and a control method thereof, and belongs to the technical field of pure electric special vehicles.
Background art:
special vehicles such as pure electric sanitation vehicles, mixing trucks and the like are generally provided with a loading system to realize specific functions, and the loading system is generally provided with an independent control system and consists of a loading control unit and a loading system switch box. The loading control unit is an integrated control unit and is responsible for collecting the on-off signals of the loading system control box, loading data of each actuating mechanism, logic control and communication functions. The switch box only consists of a plastic shell and a plurality of functional switches.
This traditional facial make-up system adopts integrated form system, and the facial make-up control unit integrated level is high, and signal acquisition receives electromagnetic interference easily, and the single-point risk of failing is high. The number of cables of the power supply, the function switch and the actuating mechanism of the system is as many as 50-60, the cables are distributed on the whole vehicle, the cables are many and long, materials and production cost are increased, and the reliability of the loading system is also reduced. Because the switch box does not have a logic control function, the safety of operators cannot be protected.
Therefore, there is a need to improve the prior art to overcome the deficiencies of the prior art.
The invention content is as follows:
the invention provides a distributed-type-based loading control system and a control method thereof for solving the problems in the prior art, and the system and the control method can be compatible with various pure electric special vehicles and can realize the loading function of various special vehicles without changing the loading control system.
The invention adopts the following technical scheme: a distributed-type-based loading control system adopts a distributed loading domain control unit which is divided into a cab domain control unit, a tail domain control unit and an extensible domain control unit according to the installation position, the scalable domain control unit comprises a first scalable domain control unit and a second scalable domain control unit, the upper installation domain control unit comprises a plastic shell, an operation button and a control panel, two PIN PINs are arranged on the upper installation domain control unit as address lines, through the input of high and low level distinction, the cab domain control unit acquires opening and closing signals, cab control buttons, interface addresses and the type selection information of the upper system, the driver is informed of the working state of the loading system through sound and an indicator light, and the tail area control unit acquires a switching signal, a tail control button, an interface address and loading actuating mechanism state data to control the action of the loading actuating mechanism.
Furthermore, the cab domain control unit and the tailstock domain control unit adopt CAN communication and are connected by a twisted pair shielded wire bus, and the communication protocol conforms to SAE J1939 standard.
Furthermore, the cab domain control unit and the tailstock domain control unit both use the same main control board and have AD acquisition, digital quantity acquisition, power output and communication functions.
Furthermore, the main control board adopts a Freescale MC9S12 vehicle-scale micro control unit, an LM324 chip is used for AD acquisition, an MC33CD1030 chip is used for digital quantity acquisition, an ULN2803 chip is used for power output, and a TJA1050T chip is used for CAN communication.
Further, the control system comprises 8 loading system software modules, a program module 1 corresponds to a washing and sweeping sanitation vehicle loading system, a program module 2 corresponds to a garbage sanitation vehicle loading system, a program module 3 corresponds to a fog gun dust suppression special vehicle loading system, a program module 4 corresponds to a watering sanitation vehicle loading system, a program module 5 corresponds to a concrete mixer vehicle loading system, a program module 6 corresponds to a sewage absorption sanitation vehicle loading system, and the program module 7 and the program module 8 are developed after user-defined loading system functions are achieved.
The invention also adopts the following technical scheme: a control method based on a distributed uploading control system comprises the following steps:
the method comprises the following steps: the user selects corresponding uploading system functions through the cab domain control units A1, A2 and A3 according to the type of the special vehicle, 8 level states are input through the interfaces, and 8 uploading system software modules are in one-to-one correspondence;
step two: the cab domain control unit reads the function selection interface level and stores the value into a variable Fun _ PTO, and the domain control unit judges the Fun _ PTO value and executes a corresponding upper system program module;
step three: the cab domain control unit stores the numerical value of the Fun _ PTO into Flash of the MCU, the cab domain control unit judges the type of the special vehicle through the Fun _ PTO and then sends the special vehicle to the whole vehicle CAN, and parts of the whole vehicle display the type of the vehicle.
The invention has the following beneficial effects:
(1) the invention adopts a distributed design, completely cancels an upper control unit and a control box, adopts a brand-new designed upper control unit and control strategy, and can collect the data of upper executive components and control each executive component nearby besides detecting the state of a button switch of the control unit;
(2) the upper loading area control unit is divided into a cab operation and control unit and a tail area operation and control unit according to the installation position, and the cab operation and control unit and the tail area operation and control unit realize information interaction by CAN communication, so that operation and control personnel are effectively protected, and the failure risk is reduced;
(3) the invention does not need switch wire harnesses, only 6 cables are distributed all over the whole vehicle, the actuating mechanism cables are arranged nearby, and the cables of the upper system and the length are greatly reduced.
Description of the drawings:
fig. 1 is a CAN network topology diagram based on a distributed upper-mounted control system according to the present invention.
Fig. 2 is a hardware topology diagram of the upper-loading domain control unit.
FIG. 3 is a flow chart of function selection and execution of the distributed-based on-board control system according to the present invention.
Fig. 4 is a flowchart of the operation protection of the vehicle tail domain control unit.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
The invention cancels a loading control unit based on a distributed loading control system, adopts a distributed loading domain control unit, and is divided into a cab domain control unit, a tail domain control unit and an extensible domain control unit according to the installation position, wherein the extensible domain control unit comprises a first extensible domain control unit and a second extensible domain control unit, and can also additionally comprise two extensible domain control units according to the requirement.
The upper installation domain control unit comprises a plastic shell, an operation button and a control panel, is completely the same and can be installed without distinguishing, and two PIN PINs are arranged on the upper installation domain control unit to serve as address lines and are distinguished by inputting high and low levels.
The cab domain control unit collects information such as opening and closing signals, cab control buttons, interface addresses, type selection of the loading system and the like, and informs a driver of the working state of the loading system through sound and indicator lights. The vehicle tail domain control unit collects data such as opening and closing signals, vehicle tail control buttons, interface addresses, states of the upper-mounted executing mechanisms and the like, controls the upper-mounted executing mechanisms to act, and achieves logic control.
When the system is normal, the cab domain control unit is in a leading position, the tailstock domain control unit uploads a message to inform the state and the control instruction of the loading execution mechanism, and the cab domain control unit comprehensively analyzes and controls the operation of the loading system.
When the cab domain control unit fails, the tail domain control unit enters an autonomous mode to independently complete control over the loading system, and a failure fault of the cab domain control unit is sent to the whole vehicle CAN. The tail area control unit fails, so does the treatment measures.
The cab domain control unit and the vehicle tail domain control unit are communicated by CAN, are connected by a twisted pair shielded wire bus, and are in communication protocol conformity with SAE J1939 standard, and the network segment is in internal communication of the distributed upper-mounted system. Each domain control unit is also mounted on the CAN network segment of the whole vehicle, performs information interaction with other parts of the whole vehicle, and generally transmits uploading system data information by the cab domain control unit. The communication network topology is shown in figure 1.
The cab domain control unit and the tailstock domain control unit both use the same main control board and have AD acquisition, digital quantity acquisition, power output and communication functions, the MCU adopts a Freescale MC9S12 vehicle-scale micro control unit, the AD module uses an LM324 chip, the digital quantity acquisition uses an MC33CD1030 chip, the power output uses an ULN2803 chip, the CAN communication uses a TJA1050T chip, and the hardware topology is shown in FIG. 2.
The program of the invention comprises 8 loading system software modules, a program module 1 corresponds to a washing and sweeping sanitation vehicle loading system, a program module 2 corresponds to a garbage sanitation vehicle loading system, a program module 3 corresponds to a fog gun dust suppression special vehicle loading system, a program module 4 corresponds to a water spraying sanitation vehicle loading system, a program module 5 corresponds to a concrete mixer truck loading system, a program module 6 corresponds to a sewage absorption sanitation vehicle loading system, and users of the program module 7 and the program module 8 can customize the loading system functions and then develop the functions.
The user can select the corresponding uploading system function through the cab domain control units A1, A2 and A3 function selection interfaces according to the type of the special vehicle, and the interfaces can input 8 level states, which correspond to 8 uploading systems one by one. The cab domain control unit reads the function selection interface level and stores the value into a variable Fun _ PTO, and the domain control unit judges the Fun _ PTO value and executes a corresponding upper system program module. And the cab domain control unit stores the Fun _ PTO value into Flash of the MCU. After judging the type of the special vehicle through the Fun _ PTO, the cab domain control unit sends the type of the special vehicle to the entire vehicle CAN, and the entire vehicle parts (such as a central control screen and an instrument) display the type of the vehicle.
The invention can be applied to different pure electric special vehicles without changing hardware and software, and the loading function selection and vehicle type judgment flow is shown in figure 3.
Some special purpose vehicles require personnel to load the system at the rear of the vehicle for operation or maintenance. When a person starts the control vehicle tail area control unit, the vehicle tail area control unit sends a CAN starting message on the loading CAN network segment and the whole vehicle CAN network segment, and after the cab area control unit receives the message, the cab area control unit and other area control units stop controlling the loading system and give an audible and visual alarm to prompt a driver. And after the VCU detects that the CAN network segment of the whole vehicle has a 'tail end domain control unit opening' message, the VCU prohibits the vehicle from running. At the moment, the priority of the tail region control unit is highest, only the tail region control unit can control the loading control system, and the other region control units temporarily exit until the tail region control unit is closed, and the distributed loading system restores to a normal mode. This function effectively protects the rear of a vehicle control personnel. The specific flow is shown in figure 4.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (6)
1. A distributed-based loading control system is characterized in that: the distributed upper loading domain control unit is adopted and divided into a cab domain control unit, a tailstock domain control unit and an expandable domain control unit according to the installation position, the expandable domain control unit comprises a first expandable domain control unit and a second expandable domain control unit, the upper loading domain control unit comprises a plastic shell, an operation button and a control panel, two PIN PINs are arranged on the upper loading domain control unit and used as address lines, the upper loading domain control unit is distinguished by inputting high and low levels, the cab domain control unit collects opening and closing signals, cab control buttons, interface addresses and upper loading system type selection information, the working state of the upper loading system is informed to a driver through sound and an indicator light, and the tailstock domain control unit collects the opening and closing signals, the tailstock control buttons, the interface addresses and the state data of the upper loading execution mechanism to control the action of the upper loading execution mechanism.
2. The distributed based on-board control system of claim 1, wherein: the cab domain control unit and the tailstock domain control unit are communicated by CAN (controller area network), and are connected by a twisted pair shielded wire bus, and the communication protocol conforms to SAE J1939 standard.
3. The distributed based on-board control system of claim 2, wherein: the cab domain control unit and the tailstock domain control unit both use the same main control board and have AD acquisition, digital quantity acquisition, power output and communication functions.
4. The distributed based on-board control system of claim 3, wherein: the main control board adopts a Freescale MC9S12 vehicle-scale micro control unit, an LM324 chip is used for AD acquisition, an MC33CD1030 chip is used for digital quantity acquisition, an ULN2803 chip is used for power output, and a TJA1050T chip is used for CAN communication.
5. The distributed based on-board control system of claim 4, wherein: the control system comprises 8 uploading system software modules, a program module 1 corresponds to a washing and sweeping sanitation vehicle uploading system, a program module 2 corresponds to a garbage sanitation vehicle uploading system, a program module 3 corresponds to a fog gun dust suppression special vehicle uploading system, a program module 4 corresponds to a water sprinkling sanitation vehicle uploading system, a program module 5 corresponds to a concrete mixer truck uploading system, a program module 6 corresponds to a sewage absorption sanitation vehicle uploading system, and a program module 7 and a program module 8 are developed after the user-defined uploading system function.
6. A control method based on a distributed uploading control system is characterized in that: the method comprises the following steps:
the method comprises the following steps: the user selects corresponding uploading system functions through the cab domain control units A1, A2 and A3 according to the type of the special vehicle, 8 level states are input through the interfaces, and 8 uploading system software modules are in one-to-one correspondence;
step two: the cab domain control unit reads the function selection interface level and stores the value into a variable Fun _ PTO, and the domain control unit judges the Fun _ PTO value and executes a corresponding upper system program module;
step three: the cab domain control unit stores the numerical value of the Fun _ PTO into Flash of the MCU, the cab domain control unit judges the type of the special vehicle through the Fun _ PTO and then sends the special vehicle to the whole vehicle CAN, and parts of the whole vehicle display the type of the vehicle.
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| CN202010958402.8A CN112193181A (en) | 2020-09-14 | 2020-09-14 | Distributed-based uploading control system and control method thereof |
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Cited By (2)
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| CN113752936A (en) * | 2021-09-23 | 2021-12-07 | 郑州森鹏电子技术有限公司 | Concrete mixer truck and multipoint operation control system of loading system thereof |
| CN114954306A (en) * | 2022-07-08 | 2022-08-30 | 质子汽车科技有限公司 | Modularized electronic and electric framework of commercial vehicle |
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