Dual-fuel controller for generator set

Abstract

The invention relates to a dual-fuel controller for a generator set, which adopts a single controller to integrate a diesel oil injection control module and a methanol injection control module, reduces the use of wire harnesses, and reduces the hardware cost and arrangement difficulty. By collecting multiple parameters such as the rotating speed, the water temperature and the load rate of an engine in real time, the blending combustion condition is intelligently judged, automatic switching between a pure diesel oil mode and a diesel oil and methanol blending combustion mode is achieved, the highest methanol replacement rate reaches 60%, and fuel consumption and pollutant emission are remarkably reduced. Meanwhile, a fault diagnosis function is achieved, the states of the sensor and the actuator are monitored in real time, the problem is accurately positioned through fault codes, and the safety and reliability of the system are improved. A waterproof ventilation valve, a shock pad and other protection structures are adopted, the adaptability of the controller in the severe environment is enhanced, and the controller can be widely applied to the diesel oil / methyl alcohol dual-fuel generator set.

Description

Technical Field

[0001] The present invention relates to the technical field of generator set control, and specifically, to a dual-fuel controller for a generator set. Background Art

[0002] In the industrial and power generation fields, diesel generator sets are widely used due to their strong reliability. However, they have two core problems: High fuel cost: When running on pure diesel, the fuel cost fluctuates significantly with the diesel price. Especially when running as a common unit for a long time, the fuel cost per degree of electricity is relatively high.

[0003] Serious emission pollution: Pollutants such as nitrogen oxides (NOx) and soot particles (PM) generated by diesel combustion are difficult to meet the increasingly strict environmental protection regulations.

[0004] To solve the above problems, dual-fuel engine technology (such as diesel-methanol blending) has gradually emerged. By partially replacing diesel with methanol, it can not only reduce the fuel cost but also reduce pollutant emissions. However, the existing dual-fuel control systems have the following technical bottlenecks: High control cost: The traditional solution uses two independent controllers (diesel ECU and methanol ECU) to control two sets of injection systems respectively, requiring two sets of wiring harnesses and calibration tools. The calibration development is difficult, with a long cycle, and the labor and material costs increase by 30% - 50%.

[0005] Low system reliability: The two controllers interact signals through CAN communication. The wiring harness layout is complex, vulnerable to electromagnetic interference, and in later maintenance, the data of the two controllers needs to be updated synchronously. Compatibility problems lead to an increase in the failure rate.

[0006] The closest existing technology at present, such as CN115217643A "A Methanol-Diesel Hybrid Fuel Engine and Control Method", realizes pure diesel operation during cold start and blending mode after warm-up through the coordinated control of a diesel ECU and a methanol ECU. However, this solution has the following defects: Hardware redundancy: The two controllers operate independently, requiring two sets of sensor and actuator interfaces, and the wiring harness length increases by more than 50%. This not only increases the cost but also occupies the engine compartment space.

[0007] Complex calibration: It is necessary to calibrate the diesel injection quantity and methanol injection quantity separately. The development cycle is extended by 40%, and the matching accuracy of the two systems depends on repeated debugging, making it difficult to achieve the optimal combustion efficiency.

[0008] Lagged fault diagnosis: It can only detect single-system faults and lacks real-time monitoring of the overall operation state of the dual-fuel system. When the sensor signal is abnormal or the actuator fails, it is unable to quickly switch modes or trigger a protection mechanism.

[0009] How to effectively solve the problems existing in the prior art is an important issue that the current dual-fuel controller for generator sets needs to solve. Summary of the Invention

[0010] The purpose of the present invention is to solve the disadvantages existing in the prior art, and a dual-fuel controller for generator sets is proposed, including: Controller body: It is composed of an upper shell, a lower shell, a PCBA circuit board, a connector, a waterproof and breathable valve, and a shock pad. The PCBA circuit board integrates a diesel injection control module and a methanol injection control module; Sensor acquisition module: It is connected to a crankshaft sensor, a phase sensor, a water temperature sensor, an intake air temperature and pressure sensor, an oil temperature and pressure sensor, and a rail pressure sensor through a wire harness to collect engine operation parameters in real time; Actuator control module: It is connected to a fuel metering unit, a diesel injector, a methanol pump, and a methanol injector through a wire harness to output control signals to adjust fuel injection; Central processing unit (ECU): It is electrically connected to the sensor acquisition module and the actuator control module, and has a built-in calibration data storage unit. According to the sensor signals collected in real time and the preset blending combustion conditions, it controls the engine to operate in a pure diesel mode or a diesel-methanol blending combustion mode; Fault diagnosis module: It monitors the sensor signals and the actuator status in real time. When an abnormality is detected, it generates a fault code and sends it to the display screen of the unit module through the CAN bus, and controls the engine to degrade or shut down according to the fault level.

[0011] Preferably, the preset blending combustion conditions include engine speed ≥ speed threshold, water temperature ≥ 65 °C, and load rate ≥ preset ratio. When all are satisfied at the same time, the ECU controls the methanol pump and the methanol injector to work, and enters the diesel-methanol blending combustion mode.

[0012] Preferably, the surface of the PCBA circuit board is coated with an insulating layer. The waterproof and breathable valve is arranged on the top of the upper shell to balance the internal and external pressures and prevent liquid water from entering. The shock pad is arranged at the bottom of the lower shell to isolate engine vibrations.

[0013] Preferably, in the pure diesel mode, the ECU only controls the diesel injector to inject diesel; in the diesel-methanol blending combustion mode, the ECU synchronously controls the diesel injector and the methanol injector. The methanol injected by the methanol injector enters the combustion chamber after being atomized through the intake pipe.

[0014] Preferably, the abnormal signals of the fault diagnosis module include sensor signal out of range, actuator failure, or methanol liquid level lower than the threshold. When an abnormality is detected, the ECU performs the following operations according to the preset logic: General fault: Send a fault code and control the engine to limit torque and degrade operation; Serious fault: Send a fault code and control the engine to shut down.

[0015] Preferably, the connector adopts a waterproof connector, integrating the wiring harness interfaces of the diesel injection system and the methanol injection system, and the number of wiring harnesses is reduced by more than 50% compared with the traditional dual-controller solution.

[0016] Preferably, the ECU is built-in with an equivalent fuel consumption rate calculation module, which calculates the equivalent fuel consumption rate (Cesf) in real time according to the diesel mass flow rate, the methanol mass flow rate and their lower calorific values. The formula is: Cesf = (md + mm × Qm / Qd) / P × 1000 Where, md is the diesel mass flow rate (kg / h), mm is the methanol mass flow rate (kg / h), Qm = 19700 kJ / kg is the lower calorific value of methanol; Qd = 42500 kJ / kg is the lower calorific value of diesel, and P is the engine power (kW).

[0017] Preferably, the ECU is built-in with a methanol substitution rate calculation module, which calculates the methanol substitution rate (MSR) according to the diesel consumption mass flow rates in the pure diesel mode and the blended combustion mode. The formula is: MSR = (md1 - md2) / md1; Where, md1 is the diesel consumption mass flow rate in the pure diesel mode (kg / h), md2 is the diesel consumption mass flow rate in the blended combustion mode (kg / h).

[0018] Preferably, the upper shell and the lower shell are connected by buckles or bolts, forming a sealed cavity inside. The PCBA circuit board is fixed to the inner wall of the shell through thermal conductive silicone to achieve heat dissipation and shock absorption.

[0019] Preferably, the controller supports connecting to an external calibration device through the CAN bus to achieve unified calibration and development of diesel injection parameters and methanol injection parameters with a single set of calibration tools.

[0020] Compared with the existing technology, the beneficial effects of the present invention are: 1. Adopt a single controller to integrate the diesel injection control module and the methanol injection control module, replacing the traditional two independent ECUs, avoiding the communication compatibility problem of dual controllers from the source, and improving the system reliability.

[0021] 2. Support a single set of calibration tools to uniformly debug diesel and methanol injection parameters. Compared with the traditional dual-controller solution, the labor cost and the later maintenance cost are significantly reduced.

[0022] 3. The ECU collects multiple parameters such as engine speed, water temperature, and load rate in real time, and only starts the methanol injection system when the preset co - combustion conditions are met, avoiding the blindness of traditional single - temperature - threshold control, ensuring stable operation of pure diesel during cold start, and efficiently switching to the co - combustion mode after warm - up, significantly reducing diesel consumption.

[0023] 4. It has a built - in calculation module for equivalent fuel consumption rate and methanol substitution rate, which optimizes the fuel ratio in real time to meet strict environmental protection requirements.

[0024] 5. The fault diagnosis module monitors the sensor signals and actuator states in real time. When an abnormality is detected, it generates a fault code and sends it to the display screen via the CAN bus, supporting hierarchical processing of "limiting torque and degrading for general faults" and "shutting down immediately for serious faults", improving the fault location accuracy and avoiding chain damage caused by a single system fault.

[0025] 6. The waterproof and breathable valve prevents liquid water and dust from entering, while balancing the internal and external pressures and assisting in heat dissipation; the shock - absorbing pad isolates the engine vibration, and the PCBA circuit board is fixed with thermal conductive silicone and coated with an insulating layer, reducing the failure rate of the controller in harsh environments and extending its service life.

[0026] 7. It supports automatic / manual switching between the pure diesel mode and the diesel - methanol co - combustion mode. Users can flexibly select according to fuel supply, load demand, and environmental protection requirements, expanding the applicable scenarios of the unit.

[0027] In summary, through the innovative design of "hardware integration + control intelligence + diagnosis real - time", this device solves the problems of high cost, low efficiency, and poor reliability of traditional dual - fuel control systems. While reducing fuel costs and improving environmental performance, it provides a standardized solution for the intelligent control of generator sets, with significant engineering application value and market competitiveness. Brief Description of the Drawings

[0028] Figure 1 It is the overall structural schematic diagram of a dual - fuel controller for a generator set proposed by the present invention; Figure 2 It is the functional block diagram of a dual - fuel controller for a generator set proposed by the present invention; Figure 3 It is the overall working flow chart of a dual - fuel controller for a generator set proposed by the present invention. Detailed Embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Referring to the drawings, this embodiment provides a dual-fuel controller for a generator set, including: Controller body 1: It is composed of an upper housing 11, a lower housing 12, a PCBA circuit board 13, a connector 14, a waterproof and breathable valve 15, and a shock pad 16. The PCBA circuit board 13 integrates a diesel injection control module and a methanol injection control module; Sensor acquisition module 2: Connects the crankshaft sensor 21, phase sensor 22, water temperature sensor 23, intake air temperature and pressure sensor 24, oil temperature and pressure sensor 25, and rail pressure sensor 26 through a wire harness to collect engine operation parameters in real time; Actuator control module 3: Connects the fuel metering unit 27, diesel injector 31, methanol pump 32, and methanol injector 33 through a wire harness to output control signals to adjust fuel injection; Central processing unit (ECU) 4: Electrically connected to the sensor acquisition module and the actuator control module, with a built-in calibration data storage unit. According to the sensor signals collected in real time and the preset blending combustion conditions, it controls the engine to operate in pure diesel mode or diesel-methanol blending combustion mode; [[ID=X]] Fault diagnosis module: Monitors sensor signals and actuator states in real time. When an abnormality is detected, it generates a fault code and sends it to the display screen of the unit module through the CAN bus, and controls the engine to operate in a degraded mode or shut down according to the fault level.

[0031] The above-mentioned dual-fuel controller for a generator set connects various sensors and actuators on the engine through a wire harness. After the dual-fuel controller is normally powered on, it can collect sensor signals in real time. Through the real-time calculation and processing of the controller ECU, combined with the calibration data written during calibration development, it judges the current state of the engine, and then outputs corresponding control signals to each actuator; during the operation of the engine, the controller ECU can monitor the operation state in real time. If there is an abnormal signal, it reports the corresponding fault code and sends it to the display screen of the unit module through the CAN line; the controller can also decide whether to control the engine to operate in a degraded mode according to the type of fault.

[0032] Furthermore, the preset blending combustion conditions include that the engine speed ≥ speed threshold, water temperature ≥ 65 °C, and load rate ≥ preset ratio. When all are satisfied at the same time, the ECU controls the methanol pump and the methanol injector to work, and enters the diesel-methanol blending combustion mode.

[0033] Furthermore, an insulating layer is coated on the surface of the PCBA circuit board. The waterproof and breathable valve is arranged on the top of the upper housing, which is used to balance the internal and external pressures and prevent liquid water from entering. The shock pad is arranged at the bottom of the lower housing, which is used to isolate the engine vibration.

[0034] Furthermore, in the pure diesel mode, the ECU only controls the diesel injector to inject diesel; in the diesel-methanol blended combustion mode, the ECU synchronously controls the diesel injector and the methanol injector, and the methanol injected by the methanol injector enters the combustion chamber after being atomized through the intake pipeline.

[0035] Furthermore, the abnormal signals of the fault diagnosis module include sensor signal out-of-range, actuator failure, or methanol level lower than the threshold. When an abnormality is detected, the ECU performs the following operations according to the preset logic: General fault: Send a fault code and control the engine to limit torque and operate at a reduced level. Severe fault: Send a fault code and control the engine to stop.

[0036] Furthermore, the connector uses a waterproof connector, integrating the wiring harness interfaces of the diesel injection system and the methanol injection system, and the number of wiring harnesses is reduced by more than 50% compared with the traditional dual-controller solution.

[0037] Furthermore, the ECU is built-in with an equivalent fuel consumption rate calculation module, which calculates the equivalent fuel consumption rate (Cesf) in real time according to the diesel mass flow rate, the methanol mass flow rate, and their lower calorific values. The formula is: Cesf = (md + mm × Qm / Qd) / P × 1000 Where, md is the diesel mass flow rate (kg / h), mm is the methanol mass flow rate (kg / h), Qm = 19700 kJ / kg is the lower calorific value of methanol, Qd = 42500 kJ / kg is the lower calorific value of diesel, and P is the engine power (kW).

[0038] Furthermore, the ECU is built-in with a methanol substitution rate calculation module, which calculates the methanol substitution rate (MSR) according to the diesel consumption mass flow rates in the pure diesel mode and the blended combustion mode. The formula is: MSR = (md1 - md2) / md1; Where, md1 is the diesel consumption mass flow rate in the pure diesel mode (kg / h), md2 is the diesel consumption mass flow rate in the blended combustion mode (kg / h).

[0039] Furthermore, the upper shell and the lower shell are connected by buckles or bolts, forming a sealed cavity inside. The PCBA circuit board is fixed to the inner wall of the shell through thermal conductive silicone to achieve heat dissipation and shock absorption.

[0040] Furthermore, the controller supports being connected to an external calibration device through the CAN bus to achieve unified calibration and development of diesel injection parameters and methanol injection parameters with a single set of calibration tools. The working principle of the dual-fuel controller for the unit in the above embodiments: S0: When the power-on button is pressed on the unit display screen, the controller powers on and performs a self-check. If the self-check status of the controller ECU is normal, S1 is executed; if the self-check status of the controller ECU is abnormal, S4 is executed.

[0041] S1: When the starting torque is pressed on the unit display screen, the controller ECU key switch receives the power-on signal and controls the unit to start in pure diesel mode. After the ECU unit monitors that the engine is running normally and the unit is preheated normally according to the module settings, the engine rises to the working state, and at this time the unit can operate under load. The controller ECU monitors the engine status in real time and judges whether it meets the diesel-methanol blended combustion mode. If the blending conditions are met, S2 is executed; if the blending conditions are not met, the unit continues to operate in pure diesel mode.

[0042] S2: When the controller ECU monitors that the engine speed, water temperature, and load ratio meet the blending conditions, the ECU controls the methanol pump to start working. After the methanol supply system builds pressure normally, the injection pressure in front of the injector is stabilized by relying on the pressure relief valve. At the same time, the injector is controlled to work, and methanol is injected into the intake pipe. The methanol spray is carried into the combustion chamber by the airflow in the intake pipe to participate in combustion. At this time, the unit is in the diesel-methanol blended combustion mode. During the operation of the unit, if the ECU detects an abnormal signal, it will report the corresponding fault code and execute S4 at the same time. When the methanol level in the unit is too low or shutdown is required, S3 is executed.

[0043] S3: When the controller ECU detects that the methanol tank level is lower than the threshold, the ECU will control the injector to stop injecting and stop power supply to the methanol pump at the same time. At this time, the unit operation mode switches to pure diesel mode; when the unit is operating normally in the diesel-methanol blended combustion mode and the unit needs to shut down the load normally, during the process of shutting down the load, when the ECU detects that the load ratio is less than the threshold and the blending conditions are not met, the unit will switch from the blending mode to pure diesel mode and stop after idling and dissipating heat at the working speed and dropping to idle speed.

[0044] S4: When the unit is in the shutdown and power-on state and the controller ECU detects an abnormal signal, it will be sent to the unit module in the form of a fault code, and relevant fault troubleshooting can be carried out according to the fault code. The unit needs to solve the relevant faults before it can start and run; when the unit is in normal operation and the controller ECU detects an abnormal signal, the ECU will judge whether it is serious according to the type of fault. For general faults, the operation will be degraded with torque limited, and for serious faults, the unit will stop for maintenance.

[0045] In the above embodiments and working principles, 1. A single controller integrates a diesel injection control module and a methanol injection control module, replacing the traditional two independent ECUs, avoiding the communication compatibility problem of dual controllers from the source and improving the system reliability.

[0046] 2. It supports a single set of calibration tools to uniformly debug the injection parameters of diesel and methanol. Compared with the traditional dual - controller scheme, the labor cost and the later maintenance cost are significantly reduced.

[0047] 3. The ECU real - time collects multiple parameters such as engine speed, water temperature, and load rate, and only starts the methanol injection system when the preset co - combustion conditions are met, avoiding the blindness of the traditional single - temperature - threshold control, ensuring stable operation of pure diesel during cold start, and efficiently switching to the co - combustion mode after warm - up, significantly reducing diesel consumption.

[0048] 4. It has a built - in equivalent fuel consumption rate and methanol substitution rate calculation module to optimize the fuel ratio in real - time, which can not only reduce the fuel cost of the unit operation, but also meet the strict environmental protection requirements.

[0049] 5. The fault diagnosis module real - time monitors the sensor signals and the actuator status. When an abnormality is detected, it generates a fault code and sends it to the unit display screen through the CAN bus, supporting hierarchical processing of "limiting torque and degrading for general faults" and "shutting down immediately for serious faults", improving the fault location accuracy, and avoiding chain damage caused by a single - system fault.

[0050] 6. The waterproof and breathable valve prevents liquid water and dust from entering, while balancing the internal and external pressures and assisting in heat dissipation; the shock - absorbing pad isolates the engine vibration, and the PCBA circuit board is fixed with thermal conductive silicone and coated with an insulating layer, reducing the failure rate of the controller in harsh environments and extending its service life.

[0051] 7. It supports automatic / manual switching between the pure - diesel mode and the diesel - methanol co - combustion mode. Users can flexibly select according to fuel supply, load demand, and environmental protection requirements, improving the applicable scenarios of the unit.

[0052] In summary, through the innovative design of "hardware integration + control intelligence + diagnosis real - time", this device solves the problems of high cost, low efficiency, and poor reliability of the traditional dual - fuel control system. While reducing the fuel cost and improving the environmental protection performance, it provides a standardized solution for the intelligent control of generator sets, with significant engineering application value and market competitiveness.

[0053] In the above - mentioned specific embodiments, the purpose, technical solution, and beneficial effects of the present invention are further described in detail. It should be understood that the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

[0054] In addition, in the description of the present invention, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0055] Furthermore, in the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A dual-fuel controller for a generator set, characterized in that, Including: Controller body: It consists of an upper shell, a lower shell, a PCBA circuit board, a connector, a waterproof breathable valve and a shock pad. The PCBA circuit board integrates a diesel injection control module and a methanol injection control module; Sensor acquisition module: It is connected to a crankshaft sensor, a fuel metering unit, a phase sensor, a water temperature sensor, an intake air temperature and pressure sensor, an oil temperature and pressure sensor and a rail pressure sensor through a wire harness, and real-time collects engine operation parameters; Actuator control module: It is connected to a diesel injector, a methanol pump and a methanol injector through a wire harness, and outputs a control signal to adjust fuel injection; Central processing unit (ECU): It is electrically connected to the sensor acquisition module and the actuator control module, and has a built-in calibration data storage unit. According to the sensor signals collected in real time and the preset blending combustion conditions, it controls the engine to operate in a pure diesel mode or a diesel-methanol blending combustion mode; Fault diagnosis module: It monitors the sensor signals and the actuator status in real time. When an abnormality is detected, it generates a fault code and sends it to the display screen of the unit module through the CAN bus, and controls the engine to degrade or stop according to the fault level.

2. A dual-fuel controller for a generator set according to claim 1, wherein: The preset blending combustion conditions include that the engine speed ≥ idle threshold, the water temperature ≥ 65 °C and the load rate ≥ a preset ratio. When all are satisfied at the same time, the ECU controls the methanol pump and the methanol injector to work and enters the diesel-methanol blending combustion mode.

3. The dual-fuel controller for a generator set according to claim 1, characterized in that: The surface of the PCBA circuit board is coated with an insulating layer. The waterproof breathable valve is arranged on the top of the upper shell, which is used to balance the internal and external pressures and prevent liquid water from entering. The shock pad is arranged at the bottom of the lower shell, which is used to isolate engine vibrations.

4. A dual-fuel controller for a generator set according to claim 1, wherein: In the pure diesel mode, the ECU only controls the diesel injector to inject diesel; in the diesel-methanol blending combustion mode, the ECU synchronously controls the diesel injector and the methanol injector. The methanol injected by the methanol injector enters the combustion chamber after being atomized through the intake pipe.

5. A dual-fuel controller for a generator set according to claim 1, wherein: The abnormal signals of the fault diagnosis module include sensor signal out-of-range, actuator failure or methanol level lower than the threshold. When an abnormality is detected, the ECU performs the following operations according to the preset logic: General fault: Send a fault code and control the engine to limit torque and degrade operation; Severe fault: Send a fault code and control the engine to stop.

6. The dual-fuel controller for a generator set according to claim 1, wherein: The connector adopts a waterproof connector, which integrates the wire harness interfaces of the diesel injection system and the methanol injection system, and the number of wire harnesses is reduced by more than 50% compared with the traditional dual-controller scheme.

7. The dual-fuel controller for a generator set according to claim 1, wherein: The ECU has a built-in equivalent fuel consumption rate calculation module, which calculates the equivalent fuel consumption rate (Cesf) in real time according to the diesel mass flow rate, the methanol mass flow rate and their lower calorific values. The formula is: Cesf = (md + mm × Qm / Qd) / P × 1000 Among them, md is the diesel mass flow rate (kg / h), mm is the methanol mass flow rate (kg / h), Qm = 19700 kJ / kg is the lower calorific value of methanol, Qd = 42500 kJ / kg is the lower calorific value of diesel, and P is the engine power (kW).

8. The dual-fuel controller for a generator set according to claim 1, characterized in that: The ECU is built-in with a methanol substitution rate calculation module, which calculates the methanol substitution rate (MSR) according to the diesel consumption mass flow rates in the pure diesel mode and the blended combustion mode. MSR = (md1 - md2) / md1; Among them, md1 is the diesel consumption mass flow rate in the pure diesel mode (kg / h). md2 is the diesel consumption mass flow rate in the blended combustion mode (kg / h).

9. The dual-fuel controller for a generator set according to claim 1, wherein: The upper shell and the lower shell are connected by buckles or bolts, and a sealed cavity is formed inside. The PCBA circuit board is fixed to the inner wall of the shell through thermal conductive silicone to achieve heat dissipation and shock resistance.

10. A dual-fuel controller for a generator set according to claim 1, characterized in that: The controller supports being connected to an external calibration device through the CAN bus to realize the unified calibration development of diesel injection parameters and methanol injection parameters by a single set of calibration tools.

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