CN108005798B - Diesel engine remote control device based on DSP processor - Google Patents
Diesel engine remote control device based on DSP processor Download PDFInfo
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- CN108005798B CN108005798B CN201711084946.0A CN201711084946A CN108005798B CN 108005798 B CN108005798 B CN 108005798B CN 201711084946 A CN201711084946 A CN 201711084946A CN 108005798 B CN108005798 B CN 108005798B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/023—Temperature of lubricating oil or working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/024—Fluid pressure of lubricating oil or working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
- F02D2200/101—Engine speed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a diesel engine remote control device based on a DSP (digital signal processor), which comprises a DSP circuit, a CAN (controller area network) bus communication circuit, an output circuit, a storage circuit, a power isolation circuit and a state setting circuit, wherein the state setting circuit is used for setting the control state of the DSP circuit; when the control state is set, the DSP circuit sends a control command to the diesel engine through the output circuit to control the diesel engine to execute corresponding actions; when the remote control state is set, the DSP circuit sends the parameter information of the diesel engine to the remote control host, and the remote control host issues a control instruction to the DSP circuit through the CAN bus so that the DSP circuit controls the diesel engine to execute corresponding actions. The state setting circuit is used for setting the control state of the diesel engine remote control device, so that the remote control host can realize remote intelligent control on the diesel engine through the diesel engine remote control device, and workers can conveniently acquire fault information in time and quickly respond and process.
Description
Technical Field
The invention belongs to the technical field of diesel engine control, and particularly relates to a diesel engine remote control device based on a DSP (digital signal processor).
Background
At present, the function of controlling diesel engine self-starting, fault shutdown and state monitoring can be realized to domestic diesel engine controller, but is the simple and easy control of going on through diesel engine controller self, can not carry out long-range ground, monitoring and control intelligently to diesel engine set through remote control operation platform, and remote control platform has convenient operation swiftly, visual strong, when the diesel engine breaks down, in time gives alarm signal, the quick convenient advantage of feedback.
Disclosure of Invention
In view of the above defects or improvement requirements in the prior art, the invention provides a diesel engine remote control device based on a DSP processor, which aims to solve the problem in the prior art that the diesel engine cannot be remotely controlled.
In order to achieve the above object, according to one aspect of the present invention, there is provided a diesel engine remote control device based on a DSP processor, comprising a DSP processor circuit, a CAN bus communication circuit, an output circuit, a storage circuit, a power isolation circuit, and a state setting circuit;
the state setting circuit, the CAN bus communication circuit, the output circuit and the storage circuit are all connected with the DSP processor circuit, and the power isolation circuit respectively provides working power for the CAN bus communication circuit, the storage circuit and the DSP processor circuit;
the DSP processor is in communication connection with a remote control host and a CAN bus of the diesel engine through a CAN bus communication circuit;
the state setting circuit is used for setting the control state of the DSP circuit to be a local control state or a remote control state, and the DSP circuit acquires parameter information of the diesel engine, analyzes and generates a control command; when the control state is in, the DSP processor circuit sends a control command to the diesel engine through the output circuit to control the diesel engine to execute corresponding actions; when in a remote control state, the DSP circuit sends the analyzed information to the remote control host, and the remote control host issues a control instruction to the DSP circuit through the CAN bus interface so that the DSP circuit controls the diesel engine to execute corresponding actions.
Preferably, in the remote control device for the diesel engine, the DSP processor circuit includes a DSP processor, a clock circuit, a reset circuit and a CAN bus interface, and the clock circuit, the reset circuit and the CAN bus interface are all connected to the DSP processor; the output circuit, the CAN bus communication circuit, the storage circuit and the state setting circuit are connected with the DSP processor, and the DSP processor is respectively in communication connection with the remote control host and the diesel engine through the CAN bus interface.
Preferably, in the remote control device for the diesel engine, the parameter information of the diesel engine collected by the DSP processor circuit includes the rotation speed of the diesel engine, the temperature of the engine oil and the pressure of the engine oil.
Preferably, in the diesel engine remote control device, the CAN bus communication circuit includes a CAN bus controller and an isolation driving circuit, so as to realize the CAN bus communication between the DSP processor and the remote control host and between the DSP processor and the diesel engine.
Preferably, the output circuit of the diesel engine remote control device adopts a bus transceiver and a solid relay to realize signal output to the DSP processor.
Preferably, in the remote control device for the diesel engine, the storage circuit of the remote control device for the diesel engine stores the parameter information acquired by the DSP processor in real time by using FLASH and SDRAM.
Preferably, the power isolation circuit of the diesel engine remote control device includes a DC/DC power module, a DC/DC converter and a power chip.
Preferably, the state setting circuit of the diesel engine remote control device is implemented by an optical coupler OC 333.
Preferably, in the remote control device for the diesel engine, the clock circuit adopts a temperature compensation crystal oscillator; the reset circuit adopts an optical coupler OC333 and an AND gate SN74AHC1G08DVBT to realize the stable reset of the DSP processor.
Preferably, in the remote control device for the diesel engine, the DSP processor of the remote control device is a TI corporation DSP chip TMS320C6713BGDPA 200.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
according to the diesel engine remote control device based on the DSP, the control state of the diesel engine remote control device is set through the state setting circuit, so that a remote control host can realize remote intelligent control on a diesel engine through the diesel engine remote control device, the remote control host can display various parameter information of the diesel engine in real time, and can automatically alarm and display fault codes for faults, so that workers can conveniently obtain fault information in time and quickly react and process; the control state can be switched between the local control state and the remote control state, and the convenience of application is improved.
Drawings
FIG. 1 is a block diagram of a remote control device of a diesel engine based on a DSP processor according to an embodiment of the present invention;
fig. 2 is a specific circuit diagram of a DSP processor circuit in the remote control device for a diesel engine according to an embodiment of the present invention;
fig. 3 is a specific circuit diagram of a state setting circuit in the remote control device of the diesel engine according to the embodiment of the present invention;
fig. 4 is a specific circuit diagram of a CAN bus communication circuit in the remote control device of the diesel engine according to the embodiment of the present invention;
fig. 5 is a specific circuit diagram of an output circuit in the remote control device of the diesel engine according to the embodiment of the present invention;
fig. 6 is a specific circuit diagram of a memory circuit in the remote control device of the diesel engine according to the embodiment of the present invention;
fig. 7 is a specific circuit diagram of a power isolation circuit in the remote control device of the diesel engine according to the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The invention provides a diesel engine remote control device based on a DSP (digital signal processor), which comprises a DSP circuit 1, a state setting circuit 2, a CAN (controller area network) bus communication circuit 3, an output circuit 4, a storage circuit 5 and a power isolation circuit 6, wherein the state setting circuit 2 is connected with the CAN bus communication circuit; the state setting circuit 2, the CAN bus communication circuit 3, the output circuit 4 and the storage circuit 5 are all connected with the DSP processor circuit 1, and the power isolation circuit 6 is used for respectively connecting the CAN bus communication circuit 3, the storage circuit 5 and the DSP processor circuit 1 to provide a working power supply;
the DSP processor circuit 1 comprises a DSP processor 11, a clock circuit 12, a reset circuit 13 and a CAN bus interface 14, wherein the clock circuit 12, the reset circuit 13 and the CAN bus interface 14 are all connected with the DSP processor 11; the output circuit 4, the CAN bus communication circuit 3, the storage circuit 5 and the state setting circuit 2 are all connected with the DSP processor 11, and the DSP processor 11 is respectively in communication connection with the remote control host and the diesel engine electronic speed regulator through the CAN bus interface 14.
The DSP 11 collects various parameter information of the diesel engine extracted by the electronic governor through a CAN bus interface 14, including the rotating speed of the diesel engine, the temperature of engine oil, the pressure of the engine oil and the like, and analyzes the obtained data; the state setting circuit 2 is used for setting the DSP processor 11 to work in a local control state or a remote control state, when the state is set to be the local control state, the DSP processor 11 sends a control command to the diesel engine through the output circuit 4, so that the operations of rotating speed gear shifting switching, starting, stopping and the like of the diesel engine are realized, and the diesel engine is controlled to work normally; when the remote control state is set, the DSP 11 sends the analyzed information to the remote control host through the CAN bus interface, the remote control host displays the parameter information of the diesel engine and automatically alarms and displays fault codes for the faults; the remote control host computer issues a control instruction to the DSP 11 through the CAN bus interface, and then controls the diesel engine through the DSP circuit 1 to realize the switching, starting and stopping of the rotating speed gear shifting.
The DSP processor 11 selects a DSP chip TMS320C6713BGDPA200 of TI company, and the clock circuit 12 adopts a temperature compensation crystal oscillator to ensure that the DSP processor circuit 1 stably works in a severe environment; the reset circuit 13 adopts two modes of manual reset and automatic reset.
The state setting circuit 2 is designed with a photoelectric coupler OC 333.
The CAN bus communication circuit 3 comprises a CAN bus controller and an isolation drive circuit, and realizes CAN bus communication between the DSP 11 and the remote control host and between the DSP and the electronic speed regulator of the diesel engine.
The output circuit 4 adopts a bus transceiver SN74LVCC3245APW and a solid relay to realize signal output to the DSP processor 11.
The storage circuit 5 adopts 1 piece of 16Mb FLASH and 1 piece of 128Mb SDRAM to form real-time storage DSP processor 11 to collect signal data.
The power isolation circuit 6 adopts a power module DPC20-24S5IA1 to convert 24V into 5V, and then converts 5V voltage into 1.26V and 3.3V for a later-stage circuit through a power chip TPS54310 PWP; meanwhile, the DC/DC converter DCR010505U is adopted to isolate the CAN bus power supply, so that the normal work of the CAN bus driver is ensured.
The invention is further described with reference to the following figures and specific embodiments.
Fig. 1 is a block diagram of a remote control device for a diesel engine based on a DSP processor according to an embodiment of the present invention, which includes a DSP processor circuit 1, a state setting circuit 2, a CAN bus communication circuit 3, an output circuit 4, a storage circuit 5, and a power isolation circuit 6; the DSP processor circuit 1 comprises a DSP processor 11, a clock circuit 12, a reset circuit 13 and a CAN bus interface 14, wherein the clock circuit 12, the reset circuit 13 and the CAN bus interface 14 are all connected with the DSP processor 11; the output circuit 4, the CAN bus communication circuit 3, the storage circuit 5 and the state setting circuit 2 are all connected with the DSP processor 11, and the DSP processor 11 is respectively in communication connection with the remote control host and the diesel engine electronic speed regulator through the CAN bus interface 14.
FIG. 2 is a circuit diagram of a DSP processor circuit; the DSP processor 11 selects a TI DSP chip TMS320C6713BGDPA200, and because the number of processor chip pins is too many, the processor chip pins are divided into D1A and D1B for drawing respectively. The chip is based on a TMS320C67X kernel, the main frequency reaches 300MHz, the chip comprises a 256KB RAM memory, a 512MB memory chip capable of being externally extended, a 32-bit external memory interface, an EDMA memory, a 32-bit timer and rich peripheral interfaces. Because the DSP processor 11 does not have an integrated CAN bus controller therein, an external CAN bus controller needs to be used, and a CAN bus communication circuit needs to be provided for communication. The DSP 11 has requirements on the clock precision and the temperature drift, so the clock circuit 12 adopts a temperature compensation crystal oscillator, the crystal model is ZC3(ZW) E-40B-332-40.00MHz, and the output frequency is 40 MHz. The system is RESET at the power-on moment, the RESET circuit 13 is combined with an AND gate SN74AHC1G08DVBT (D15) by adopting an optical coupler OC333(D14) to output a NetRESET signal, the signal is shaped by a six-phase reverse Schmitt trigger SN74LVC14AD (D16), the shaped RESET is input into a DSP chip, the low level lasting for 200ms occurs, the output end RESET of the DSP chip is the low level, and the stable RESET of the DSP processor 11 is ensured. After the power supply is stabilized, the a terminal of the D15 is connected with a pull-up resistor to keep high level, and the RESET of the output terminal of the D16 is always high level to ensure the normal operation of the DSP processor 11.
The state setting circuit 2 is used for setting the local control/remote control state of the DSP processor 11, and the local control and remote control state setting is realized through an optical coupler OC 333; as shown in fig. 3, the optical coupler OC333 isolates the local control (BK) or remote control (YK) setting signal to generate a local control state signal (BKZT) or a remote control state signal (YKZT), and the isolated two paths of signals are not electrically connected to prevent interference caused by signal connection; after receiving the local control state signal (BKZT) or the remote control state signal (YKZT), the DSP processor 11 executes a corresponding action according to the collected control state information: in the control state, the DSP 11 directly sends a control instruction according to the acquired parameter information to control the diesel engine to execute corresponding actions, and at the moment, the remote control host cannot acquire the state of the diesel engine; in the remote control state, the DSP processor 11 sends the acquired parameter information and the remote control state information to the remote control host, and the remote control host judges the received signals and sends control instructions to the DSP processor 11 so that the DSP processor 11 controls the diesel engine to execute corresponding actions; the priority of the local control state and the remote control state can be set according to the needs of users.
FIG. 4 is a schematic circuit diagram of a CAN bus communication circuit; the CAN bus communication circuit 3 comprises a CAN bus controller and an isolation drive circuit, and realizes CAN bus communication between the DSP processor 11 and a remote control host. Because the DSP processor 11 does not have an integrated CAN bus controller therein, an external CAN bus controller needs to be used to set an isolation driving circuit for communication. The CAN bus controller adopts SJA1000TD chip, the working voltage is 5V, the working temperature is-40- +125 ℃, the CAN bus controller has two different operation modes, Basic CAN mode and Peli CAN mode, the embodiment adopts Basic CAN mode. The CAN bus isolation driving circuit adopts an ISO1050DUB chip, so that a sensitive device CAN be prevented from being damaged by noise current interference of a CAN bus or other circuits, the working voltage of the chip is 3.3V, and the bus and signaling speed is 1 Mbps.
Fig. 5 is a circuit diagram of an output circuit, and the output circuit 4 adopts a bus transceiver SN74LVCC3245APW and solid-state relays JGX-5053MA to realize signal output. The solid relay JGX-5053MA has 4 groups of normally open contacts, the load is 3.5A, the field effect tube outputs, the size is small, the vibration and impact resistance are realized, the working temperature range is-55-125 ℃, the input working voltage is +5V, the input current is 15mA, the output end voltage can reach 50V, and a control instruction sent by the DSP processor 11 is output to the diesel engine through the solid relay to control the diesel engine to work. The coil driving voltage of the solid-state relays JGX-5053MA is 4V, 3.3V signals output by the I/O of the DSP cannot meet the requirements, so the bus transceiver SN74LVCC3245APW is selected, the circuit adopts a CMOS (complementary metal oxide semiconductor) process, 3.3V and 5V power supply is adopted, 16-bit 3.3V to 5V is supported, and the voltage requirement of the solid-state relays JGX-5053MA is met.
The storage circuit 5 is used for temporarily storing original parameter information acquired by the DSP processor 11 and various data in the operation of the DSP processing circuit, as shown in fig. 6, the storage circuit 5 is composed of 1 FLASH chip of 16Mb and 1 SDRAM chip of 128Mb, the model of the FLASH chip (D2) is JFM29LV160, the capacity of the FLASH chip is 16M, the model of the SDRAM chip (D3) is MT48LC4M32B2P-6IT, and the capacity of the SDRAM chip is 128M, and the control requirements of the diesel engine can be met.
FIG. 7 is a schematic diagram of a power isolation circuit; the power isolation circuit is realized by adopting a DC/DC power module DPC20-24S5IA1, a DC/DC converter DCR010505U and a power chip TPS54310 PWP;
the DC/DC power module DPC20-24S5IA1 converts 24V power supply into 5V, and the power isolation circuit adopts a DC/DC converter DCR010505U to isolate 5V voltage and then supplies the isolated power supply to a CAN bus controller and a CAN bus isolation driving circuit in the CAN bus communication circuit 3; the 5V working voltage is converted into 3.3V, 1.26V and 3.3V by a power chip TPS54310PWP for a storage circuit, an I/O voltage of a DSP processor circuit and an output circuit to use, and the voltage of a DSP processor core is 1.26V; the working voltage of the power chip TPS54310PWP is 3V-6V, the output voltage range is 0.9V-3.3V, the output rated current is 3A, the output voltage is adjustable, the output voltage of the power isolation circuit is adjusted through resistors R6, R7, R10 and R11, the output voltage is 3.3V, and the resistor handbooks of R6 and R7 recommend 3.74k omega and 2k omega; the output voltage is 1.26V, and the configuration resistances of R10 and R11 are 24.3k omega and 1.65k omega.
Compared with the existing diesel engine controller, the diesel engine remote control device based on the DSP processor provided by the invention has the advantages that the control state of the diesel engine remote control device is set through the state setting circuit, so that the remote control host can realize remote intelligent control on the diesel engine through the diesel engine remote control device, the remote control host can display various parameter information of the diesel engine in real time, and carry out automatic alarm and fault code display on the fault, so that a worker can conveniently obtain fault information in time and quickly react and process; the control state can be switched between the local control state and the remote control state, and the convenience of application is improved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A diesel engine remote control device based on a DSP processor comprises a DSP processor circuit, a CAN bus communication circuit, an output circuit, a storage circuit and a power isolation circuit, and is characterized by also comprising a state setting circuit;
the state setting circuit, the CAN bus communication circuit, the output circuit and the storage circuit are all connected with the DSP processor circuit, and the power isolation circuit respectively provides working power for the CAN bus communication circuit, the storage circuit and the DSP processor circuit;
the DSP processor is in communication connection with a remote control host and a CAN bus of the diesel engine through a CAN bus communication circuit;
the state setting circuit is used for setting the control state of the DSP circuit to be a local control state or a remote control state, and comprises two isolated optocoupler circuits which are respectively used for generating a local control state signal and a remote control state signal which are isolated from each other; the DSP circuit acquires parameter information of the diesel engine through the CAN bus, analyzes and generates a control command; when the local control state signal is received, the DSP circuit sends a control command to the diesel engine through the output circuit to control the diesel engine to execute corresponding actions; when the remote control state signal is received, the DSP circuit sends the analyzed information to the remote control host, and the remote control host sends a control instruction to the DSP circuit through the CAN bus so that the DSP circuit controls the diesel engine to execute corresponding actions.
2. The diesel engine remote control device of claim 1, wherein the DSP processor circuit comprises a DSP processor, a clock circuit, a reset circuit, and a CAN bus interface, the clock circuit, the reset circuit, and the CAN bus interface being connected to the DSP processor; the output circuit, the CAN bus communication circuit, the storage circuit and the state setting circuit are connected with the DSP processor, and the DSP processor is respectively in communication connection with the remote control host and the diesel engine through the CAN bus interface.
3. The diesel engine remote control device of claim 1, wherein the parameter information collected by the DSP processor circuit includes diesel engine speed, oil temperature, and oil pressure.
4. The diesel engine remote control device according to claim 1 or 2, wherein the CAN bus communication circuit includes a CAN bus controller and an isolation driving circuit, and CAN bus communication between the DSP processor and the remote control host and between the DSP processor and the diesel engine is realized.
5. The diesel engine remote control device as claimed in claim 1 or 2, wherein the output circuit uses a bus transceiver and a solid relay to realize signal output to the DSP processor.
6. The diesel engine remote control device according to claim 1 or 2, characterized in that the storage circuit stores the parameter information collected by the DSP processor in real time by using FLASH and SDRAM.
7. The diesel engine remote control device of claim 1 or 2, wherein the power isolation circuit comprises a DC/DC power module, a DC/DC converter and a power chip.
8. The diesel engine remote control device according to claim 1 or 2, characterized in that the state setting circuit is implemented by an optical coupler OC 333.
9. The diesel engine remote control device according to claim 2, wherein the clock circuit employs a temperature compensated crystal oscillator; the reset circuit adopts an optical coupler OC333 and an AND gate SN74AHC1G08DVBT to realize stable reset of the DSP processor.
10. The diesel engine remote control device of claim 1, wherein the DSP processor is selected from a TI corporation DSP chip TMS320C6713BGDPA 200.
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| CN109969585B (en) * | 2019-04-26 | 2021-08-27 | 湖北三江航天万峰科技发展有限公司 | Automatic cover opening control device for specially-made box body |
| CN111580439A (en) * | 2020-06-02 | 2020-08-25 | 湖北三江航天万峰科技发展有限公司 | Turbo generator control system based on DSP treater |
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| CN204371543U (en) * | 2014-12-16 | 2015-06-03 | 衡阳泰豪通信车辆有限公司 | A kind of interface circuit of diesel generating set telecontrol |
| WO2016143670A1 (en) * | 2015-03-10 | 2016-09-15 | 株式会社小松製作所 | Control system for work vehicle, control method, and work vehicle |
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