CN108757199B - Redundancy control method of electronic fuel injection engine control device - Google Patents
Redundancy control method of electronic fuel injection engine control device Download PDFInfo
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- F02D—CONTROLLING COMBUSTION ENGINES
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Abstract
The invention discloses a redundancy control method of an electronic fuel injection engine control device, which comprises the following steps: configuring signal receiving processing priority of an engine ECM; configuring an engine control parameter control route for an engine ECM; the signal processing module receives a request signal sent from the signal module for carrying out state change on the electronic fuel injection engine, analyzes and processes the request signal according to a set control rule to obtain a corresponding control parameter signal for adjusting the operation of the electronic fuel injection engine, and sends the control parameter signal to the engine ECM as a bus signal and/or a port signal according to the configuration in the step S2; if the types of control parameters related in the bus signal and the port signal are different, firstly receiving a state parameter signal with higher priority according to the priority sequence; if the types of control parameters involved in the bus signal and the port signal are the same, only the control parameter signal with the higher priority is accepted.
Description
Technical Field
The invention belongs to the technical field of engines, and particularly relates to a redundancy control method of an electronic fuel injection engine control device.
Background
In the existing Control technology of the electronic fuel injection Engine, an Engine Control Module (ECM) receives signals of other sensors such as a rail pressure sensor, a water temperature sensor, an Engine oil pressure sensor, an intake pressure and temperature sensor, a crankshaft rotating speed sensor, a camshaft rotating speed sensor and the like to form running information of the Engine, and controls an injector electromagnetic valve to realize an injection starting point, injection duration and injection pressure after operation processing by combining Control signals received by the ECM. The engine ECM can realize the operation and stop, the rotating speed control, the torque control, the debugging rate control and the like of the electronic fuel injection engine by receiving different control signals, simultaneously can also send the operation parameters of the engine in real time for a user to inquire, and can control the normal operation, the rotating speed limitation, the power limitation or forced stop and the like of the engine according to the fault severity when the engine is in fault.
The engine ECM mainly provides two types of control modes of sending a control command by a bus and controlling a port with a function directly corresponding to the ECM, and the engine ECM can meet different requirements of the engine through an internal control form and a method by combining with the practical application condition of a user.
For the reasons, in the application process of the electronic fuel injection engine control, an electronic fuel injection engine control device capable of realizing a redundancy control mode needs to be designed, and a set of corresponding redundancy control method needs to be designed to meet the application requirements.
The patent document with application number 201610140420.9 discloses an aircraft engine redundancy ECU controller and a control method thereof, which are realized by designing input circuit redundancy, output circuit redundancy and CPU redundancy of the controller, when one ECU works normally, the other ECU is in a hot standby state, and when the ECU considers that an input signal of a certain channel is not reliable, the ECU can be switched into an input signal of the other channel. This ECU redundant circuit configuration is not the same as the present application and causes the system to become complicated.
Disclosure of Invention
The invention mainly aims to provide a redundancy control method of an electronic fuel injection engine control device, and aims to solve the problem that the existing engine cannot meet various control modes.
In order to achieve the above object, the present invention provides a method for controlling redundancy of an electronic fuel injection engine control device, comprising: the system comprises a CAN bus module, a signal processing module, a port control module and an I/O display control module; the signal processing module is connected with the CAN bus module, the port control module and the I/O display control module; the input end of the electronic fuel injection engine control device is connected with a signal module; the CAN bus module is used as an output end of the electronic injection engine control device and connected with a bus port of an engine ECM (engine control module) and used for sending a bus signal to the engine ECM; the port control module is used as the other output end of the electronic injection engine control device and is connected with a functional port of an engine ECM (engine control module) and used for sending a port signal to the engine ECM;
the method comprises the following steps:
s1, configuring signal receiving processing priority of the engine ECM, and setting one of the bus signal and the port signal to have higher priority;
s2, configuring engine control parameter control routes for the engine ECM, and setting each control parameter signal for adjusting the operation of the electronic fuel injection engine to be capable of being sent through a CAN bus module and/or through a port control module;
s3, the signal processing module receives a request signal sent from the signal module for carrying out state change on the electronic fuel injection engine, analyzes and processes the request signal according to a set control rule to obtain a corresponding control parameter signal for adjusting the operation of the electronic fuel injection engine, and sends the control parameter signal to the engine ECM as a bus signal and/or a port signal according to the configuration in the step S2;
s4, if the types of control parameters related in the bus signal and the port signal are different, according to the priority sequence, firstly receiving the state parameter signal with higher priority to control the electronic fuel injection engine, and then receiving the control parameter signal with lower priority to control the electronic fuel injection engine;
and S5, if the types of the control parameters involved in the bus signal and the port signal are the same, only receiving the control parameter signal with higher priority to control the electronic fuel injection engine.
Preferably, in step S5, when the engine ECM controls the electronic fuel injection engine according to one of the bus signal and the port signal based on the priority order, the engine ECM can be switched to control the electronic fuel injection engine according to the other of the bus signal and the port signal by modifying the priority order of the bus signal and the port signal through the signal processing module or the I/O display control module.
Preferably, in step S2, the engine ECM is configured such that the bus signals sent via the CAN bus module include a speed control signal, a torque curve selection signal, and a rate adjustment selection signal, and the port signals sent via the port control module include a speed control signal, a medium speed control signal, a speed increase control signal, a speed decrease control signal, a diagnostic control signal, and an emergency stop control signal.
Preferably, when said control parameter for regulating the operation of the electronic fuel injection engine is indicative of the speed of rotation,
the method comprises the following steps:
setting an engine ECM to preferentially control the engine speed through a bus signal, and setting an engine torque curve and a speed regulation rate;
the signal module sends gear control signals to the signal processing module, and parameters of an accelerator opening, a speed regulating rate and a torque curve required by a corresponding gear are obtained after the gear control signals are processed by the signal processing module;
the parameters of the accelerator opening, the speed regulation rate and the torque curve derived by the signal processing module are sent through a CAN bus module;
the engine ECM receives requests for throttle opening, throttle rate and torque curve parameter signals via the bus and adjusts electronic fuel injection engine operation accordingly to the new value.
Preferably, when the engine ECM controls the engine speed through the opening degree of the bus accelerator, the signal processing module or the I/O display control module can modify the priority order of the bus signal and the port signal, and the engine speed is controlled by switching the bus signal control to the port signal sent by the port control module, so as to implement the redundant control of the engine speed.
Preferably, the I/O display control module is connected to the port control module, and the I/O display control module can modify the opening, the speed regulation rate, and the torque curve of the engine oil corresponding to each gear.
Preferably, the I/O display control module can display the operation parameters and the fault information of the electronic fuel injection engine in real time.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
when the CAN bus module fails or a peripheral bus connected with the CAN bus module is affected to cause that all or part of commands sent by the bus cannot be transmitted to the engine ECM, the port control module CAN control a functional control port of the engine ECM, so that redundant standby control is realized.
And secondly, in two independent control modes of bus control and port control, the control switching of the two modes can be realized through priority setting, when certain controlled parameter of the electronic injection engine is set as bus control, the bus control can be switched to be preferentially controlled by the instruction of the port control module through the internal presetting of the signal processing module or the input selection modification of the I/O display control module, and the redundant control of the state parameter of the electronic injection engine is realized.
When the types of the bus signals and the control signals are different, the engine control signals of different types can control the electronic fuel injection engine according to the high-low sequence of the priority levels through the setting of the priority levels, and part of state parameter signals can be sent by the bus and part of state parameter signals are sent by the ports through the setting; and when the bus signal and the port signal have overlapped state parameter signals with the same category, only adopting a signal command with high priority, and controlling the electronic fuel injection engine by using the signal with high priority in the bus signal and the port signal.
In the prior art, for two mutually redundant control modules capable of performing similar control functions, control is switched from a control module with a fault or a control module to be switched to a standby control module, usually, a fault state is detected to transmit internal state information to the standby control module to realize switching control, and the switching usually causes interruption of a control signal. The electronic fuel injection engine control device provided by the invention has a high-level bus communication mode and a traditional port control mode, engine control parameter signals sent to the engine ECM can be transmitted through two independent paths, so that the transmission of the engine control signals is more reliable, the engine ECM is controlled through the setting of the priority, the two control modes are stably switched through the setting and modification of the priority, and the continuity of control parameter signal transmission during switching is also ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a first block diagram of the structure of an electronic fuel injection engine control device according to the present invention;
FIG. 2 is a block diagram of the second schematic structure of an electronic fuel injection engine control device according to the present invention.
The invention is illustrated by the reference numerals:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Signal module | 2.3 | |
| 2 | Electronic fuel injection engine control device | 2.4 | I/O display control module |
| 2.1 | |
3 | Engine ECM |
| 2.2 | Signal processing module |
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a redundancy switching control method of an electronic fuel injection engine control device.
Referring to fig. 1 to 2, an electronic fuel injection engine control device (2) includes a CAN bus module (2.1), a signal processing module (2.2), a port control module (2.3), and an I/O display control module (2.4); the signal processing module (2.2) is connected with a CAN bus module (2.1), a port control module (2.3), an I/O display control module (2.4) and a signal module (1), the CAN bus module (2.1) is connected with a bus port of the engine ECM (3), the I/O display control module (2.4) is connected with the port control module (2.3), and the port control module (2.3) is connected with a functional port of the engine ECM (3).
Wherein the content of the first and second substances,
the signal module (1) is a signal request module for changing the state of the engine, and is a signal generator, and the signal sent by the signal request module can be a plurality of signals or a comprehensive signal according to the control parameter type of the engine to be controlled, a typical example is a gear signal, the gear signal is a comprehensive signal, the signal of the gear signal can be a variable voltage value, the gear signal is processed into 1-10 gear states through the signal processing module (2.2), and different states can correspond to one group and/or a plurality of groups of different parameters for controlling the engine ECM (3).
The CAN bus module (2.1) is a CAN communication interface, is convenient for bidirectional data communication with the engine ECM (3) in a CAN bus mode through the CAN communication interface, receives engine state parameter information sent by the engine ECM (3), sends a bus signal to the engine ECM (3) as an engine control signal, CAN be connected with a peripheral control device, and receives a control request instruction sent by the peripheral control device through a bus.
The port control module (2.3) is a one-to-one output control port of input ports of different function requests corresponding to the engine ECM (3), and is divided into an analog quantity port, a digital quantity port and a pulse quantity port according to different signals acceptable by the function ports of the engine ECM (3), the port control module (2.3) has the function of outputting signals to the output ports of the engine ECM (3), independently changing parameters and states of different port signals, and further has the function of receiving controlled signals of the signal processing module (2.2) and the I/O display control module (2.4) to change the parameters and the states of the ports. The port control module (2.3) performs unidirectional control on the engine ECM (3), and the output port signal is used as an engine control signal to control the engine ECM (3).
The I/O display control module (2.4) is used for presetting control parameters for an electronic fuel injection engine control device (2), on one hand, setting and modification of corresponding parameters needing to be sent to an engine ECM (3) under different control signals, and a combination mode of multiple groups of parameters such as rotating speed, speed regulation rate and torque can be carried out, on the other hand, selection and modification of bus control and port control priority can be carried out, setting of respective control routes of multiple groups of engine control parameters (for example, a bus is set to only control the rotating speed of an engine, and a port only controls switching of the speed regulation rate and the torque), and on the other hand, switching setting can be carried out according to multiple working modes (for example, H heavy load, S economy and L light load modes) designed according to different working conditions under actual application conditions. The I/O display control module (2.4) is also used for displaying engine parameter information, including real-time state parameters and fault information of the electronic fuel injection engine which are periodically sent through a CAN bus, and historical fault information which is requested to be sent through the I/O display control module (2.4).
The signal processing module (2.2) receives the signal of the signal module (1) firstly, processes the signal into a signal reflecting the request for changing the state of the engine according to the corresponding logical relationship, such as changing the rotating speed, changing the speed regulation rate and changing the torque, receives a control request signal sent by a peripheral control device from the CAN bus module (2.1), and receives a modification setting signal of the I/O display control module (2.4) to the data of parameters, states and the like. And then after various complex logic operations and signal conversion work are finished, an engine control signal for controlling an engine ECM (3) is sent to the CAN bus module (2.1), information of other peripheral bus devices is sent, information needing to be displayed is sent to the I/O display control module (2.4), and information needing to be controlled is sent to the port control module (2.3).
Specifically, the control of the electronic fuel injection engine is realized by using the electronic fuel injection engine control device (2), and the control method comprises the following steps:
a functional arrangement for an engine ECM (3), comprising:
1. setting an engine torque curve and a speed regulation rate, and setting a source address of a specific parameter of the engine ECM (3) controlled by the engine speed and other models which can be controlled;
2. setting engine control signals acceptable by an engine ECM (3), defining the engine control signals sent by a CAN bus module (2.1) as bus signals and the engine control signals sent by a port control module (2.3) as port signals, and having the following three setting modes:
only the bus signals are accepted and,
only the port signal is accepted and the port signal,
can accept the bus signal and port signal at the same time;
3. in step 2, if the engine ECM (3) is set to accept both the bus signal and the port signal, the bus signal and the port signal to be accepted are also subjected to signal acceptance processing priority configuration, that is:
the bus control based on the bus signal is set as priority control, or,
setting port control according to the port signal as priority control;
secondly, data acquisition, analysis processing and control comprise:
1. if the engine ECM (3) is only controlled by a bus in the step one, the electronic fuel injection engine control device (2) and the engine ECM (3) carry out bidirectional communication through the bus signal, and the method specifically comprises the following steps:
the CAN bus module (2.1) receives the engine state parameter information sent by the engine ECM (3) and sends the information to the signal processing module (2.2),
the signal module (1) sends a first control signal to the signal processing module (2.2),
the I/O display control module (2.4) sends a second control signal to the signal processing module (2.2),
the CAN bus module (2.1) CAN also receive a third control signal sent by a peripheral control device,
the signal processing module (2.2) analyzes and processes the first control signal, the second control signal and the third control signal, converts the signals into corresponding engine control signals according to a determined control rule,
the engine control signals are output to a bus port of an engine ECM (3) through a CAN bus module (2.1),
the engine ECM (3) controls the electronic fuel injection engine correspondingly according to the received engine control signal.
2. If the engine ECM (3) is set to only receive port control in the step one, the port signal can only be controlled to the engine ECM (3) in a single direction by the electronic injection engine control device (2), and the method specifically comprises the following steps:
the signal module (1) sends a first control signal to the signal processing module (2.2), the I/O display control module (2.4) sends a second control signal to the signal processing module (2.2), and the signal processing module (2.2) correspondingly controls the engine ECM (3) through the port control module (2.3) after processing according to the signal type and the signal specific parameters of the signal module (1).
3. If in step one, the engine ECM (3) is set to accept both the bus signal and the port signal, the method comprises:
the CAN bus module (2.1) receives the engine state parameter information sent by the engine ECM (3) and sends the information to the signal processing module (2.2),
the signal module (1) sends a first control signal to the signal processing module (2.2),
the I/O display control module (2.4) sends a second control signal to the signal processing module (2.2),
the CAN bus module (2.1) CAN also receive a third control signal sent by a peripheral control device,
the signal processing module (2.2) analyzes and processes the first control signal, the second control signal and the third control signal, converts the signals into corresponding engine control signals according to a determined control rule,
the engine control signals are respectively output to an engine ECM (3) through a CAN bus module (2.1) and/or a port control module (2.3),
the engine control signals comprise a plurality of types, and the setting of the respective control routes of the plurality of types of engine control signals can be carried out in advance through the I/O display control module (2.4), for example: the engine speed control signal, the torque curve selection signal and the speed regulation selection signal are set to be sent by a bus, the engine speed control signal, the medium speed control signal, the speed increasing control signal, the speed reducing control signal, the diagnosis control signal and the emergency stop control signal are set to be sent by a functional port,
when the CAN bus signal is set to be prior, the engine ECM (3) only receives a command instruction sent by the bus, only when the command waiting for the engine ECM (3) is not sent on the bus due to fault reasons or due to the control of the signal processing module (2.2), the engine ECM (3) judges whether the port signal has a corresponding command, and if so, the port signal is adopted to control the engine ECM (3);
when the port signal priority is set, the engine ECM (3) only receives a port control command, and only receives a bus command when the functional port has no corresponding control command;
when overlapped control commands (such as rotating speed control signals) are simultaneously sent from the bus and the port, the engine ECM (3) only adopts the commands sent by the control path with high priority according to the preset priority of the engine;
in addition, the signal processing module (2.2) can also control the combined state that a part of engine control signals are sent by the bus and a part of engine control signals are sent by the port.
In the above whole process, the first control signal, the second control signal and the third control signal respectively have the following functions:
when the second control signal sent by the I/O display control module (2.4) is a comprehensive signal, the signal processing module (2.2) receives a command for processing the engine to be controlled corresponding to the second control signal and sends a sending mode control command of the command to the CAN bus module (2.1) and/or the port control module (2.3), and the engine ECM (3) receives the control command to change the running state of the engine. In the process, when a third control signal sent by the peripheral control device is received, the second control signal is combined with a logic relation designed in advance by the signal processing module (2.2), the second control signal is synthesized, the third control signal is sent to the CAN bus module (2.1) and/or the port control module (2.3) to be changed, and finally the engine ECM (3) receives different instructions to be changed. The first control signal sent by the signal module (1) is mainly used for modifying the parameters of the signal processing module (2.2) and switching the control mode.
In step 3 of the second step, the torque curve selection signal and the rate adjustment selection signal are output to the torque selection switch input port and the rate adjustment selection switch input port corresponding to the engine ECM (3) through pulse signals to cyclically change the torque curve and the rate adjustment. And when the rotating speed control signal is received, a voltage signal is output to a voltage signal corresponding to the engine ECM (3). The medium speed control signal is to output a low digital signal to a corresponding port of the engine ECM (3), the engine has a fixed rotating speed, and in this state, the speed increasing control signal or the speed reducing control signal is output to a corresponding pulse signal of the engine ECM (3), and the rotating speed is increased or decreased according to a set step. The diagnostic control signal and the emergency stop control signal are output to corresponding ports of the engine ECM (3) to effect activation of the diagnostic mode and the emergency stop mode. The output of each engine control signal can be determined in a plurality of ways respectively or simultaneously, wherein one way is a control signal from the signal processing module (2.2), one way is a control signal from the I/O display control module (2.4), one way is a selection switch of the port control module (2.3), the signal way is a management type signal, namely, the management function of starting and stopping the port function of the port control module (2.3), and the other way is a functional signal, namely, a signal related to a corresponding port directly output to the engine ECM (3).
An example of practical application is that the control of an electronic fuel injection engine according to the invention is implemented as follows:
1. the engine speed is controlled by setting the opening degree of a bus accelerator of an engine ECM (3), 10 editable rate-adjusting selection parameters, 5 torque curve plans, a port is set to be controlled to be the highest priority, the middle-speed control speed is set to be 1400rpm, and the increasing and decreasing step length of the speed control is 100 rpm;
2. the gear control signal sent by the signal receiving module (1) is processed into accelerator opening, debugging rate and torque curve parameters required by the corresponding gear through the signal processing module (2.2);
3. sending the parameters processed by the signal processing module (2.2) to the CAN bus module (2.1);
4. after the engine ECM (3) receives the accelerator opening, the debugging rate and the torque curve request, correspondingly adjusting the electronic fuel injection engine to reach a new control state;
5. the signal processing module (2.2) and the I/O display control module (2.4) can switch the engine rotating speed control to the medium-speed control switch signal control of the engine ECM (3), at the moment, the rotating speed control of the electronic injection engine is preferentially controlled by an instruction of the port control module (2.3), the rotating speed of the engine is 1400rpm, under the controlled state of the medium-speed control switch, the port control module (2.3) controls the speed increasing switch and the speed decreasing switch of the engine ECM (3), and the rotating speed of the electronic injection engine can be adjusted according to the step length of 100rpm, so that the redundant control method of the engine rotating speed standby adjusting system is realized;
6. the I/O display control module (2.4) can modify the opening of an engine throttle valve, the debugging rate and the distortion curve corresponding to each gear, and can display the operation parameters of the electronic fuel injection engine, display fault information and the like in real time.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A redundant control method for an electronic fuel injection engine control device is characterized in that,
the electronic fuel injection engine control device comprises: the system comprises a CAN bus module (2.1), a signal processing module (2.2), a port control module (2.3) and an I/O display control module (2.4); the signal processing module (2.2) is connected with the CAN bus module (2.1), the port control module (2.3) and the I/O display control module (2.4); the input end of the electronic injection engine control device (2) is connected with the signal module (1); the CAN bus module (2.1) is used as an output end of the electronic injection engine control device and is connected with a bus port of an engine ECM (3) and used for sending a bus signal to the engine ECM (3); the port control module (2.3) is used as the other output end of the electronic injection engine control device and is connected with a functional port of an engine ECM (3) and used for sending a port signal to the engine ECM (3);
the method comprises the following steps:
s1, configuring signal receiving processing priority of the engine ECM (3), and setting one of the bus signal and the port signal to have higher priority;
s2, configuring engine control parameter control routes for the engine ECM (3), and setting each control parameter signal for adjusting the operation of the electronic injection engine to be sent through the CAN bus module (2.1) and/or the port control module (2.3);
s3, the signal processing module (2.2) receives a request signal sent from the signal module (1) for carrying out state change on the electronic fuel injection engine, analyzes and processes the request signal according to a preset control rule to obtain a corresponding control parameter signal for adjusting the operation of the electronic fuel injection engine, and sends the control parameter signal to the engine ECM (3) as a bus signal and/or a port signal according to the configuration in the step S2;
s4, if the types of control parameters related in the bus signal and the port signal are different, according to the priority sequence, firstly receiving the state parameter signal with higher priority to control the electronic fuel injection engine, and then receiving the control parameter signal with lower priority to control the electronic fuel injection engine;
and S5, if the types of the control parameters involved in the bus signal and the port signal are the same, only receiving the control parameter signal with higher priority to control the electronic fuel injection engine.
2. A redundant control method of an electronic fuel injection engine control apparatus according to claim 1, characterized in that in step S5, when the engine ECM (3) controls the electronic fuel injection engine according to one of the bus signal and the port signal based on the priority order, the priority order of the bus signal and the port signal is modified by the signal processing module (2.2) or the I/O display control module (2.4) so that the engine ECM (3) can be switched to control the electronic fuel injection engine according to the other of the bus signal and the port signal.
3. An electronic injection engine control unit redundancy control method as claimed in claim 1, characterized in that in step S2, the engine ECM (3) is configured such that the bus signals sent via the CAN bus module (2.1) include a speed control signal, a torque curve selection signal, a rate adjustment selection signal, and the port signals sent via the port control module (2.3) include a speed control signal, a medium speed control signal, a speed increase control signal, a speed decrease control signal, a diagnostic control signal, an emergency stop control signal.
4. A method of redundant control of an electronic injection engine control device according to claim 3, characterized in that when said control parameter for regulating the operation of the electronic injection engine is indicative of the speed of rotation,
the method comprises the following steps:
setting the engine ECM (3) to preferentially control the engine speed through a bus signal, and setting an engine torque curve and a rate adjustment rate;
the signal module (1) sends gear control signals to the signal processing module (2.2), and parameters of an accelerator opening, a speed regulating rate and a torque curve required by a corresponding gear are obtained through processing of the signal processing module (2.2);
parameters of the accelerator opening, the speed regulation rate and the torque curve derived by the signal processing module (2.2) are sent by a CAN bus module (2.1) and/or a port control module (2.3);
the engine ECM (3) receives the requests of the throttle opening, the governing rate and the torque curve parameter signals through the bus, and accordingly adjusts the operation of the electronic injection engine to a new value.
5. An electronic injection engine control device redundancy control method as claimed in claim 4, characterized in that when the engine ECM (3) controls the engine speed through the opening degree of the bus throttle, the signal processing module (2.2) or the I/O display control module (2.4) can modify the priority sequence of the bus signal and the port signal, and the engine speed is controlled by switching the control of the bus signal to the control of the port signal sent by the port control module (2.3) so as to realize the redundancy control of the engine speed.
6. An electronic injection engine control device redundancy control method as claimed in claim 5, characterized in that the I/O display control module (2.4) is connected with the port control module (2.3), and the I/O display control module (2.4) can modify the engine throttle opening, the governing rate and the torque curve corresponding to each gear.
7. An electronic injection engine control device redundancy control method as claimed in claim 6, characterized in that the operating parameters and fault information of the electronic injection engine can be displayed in real time by the I/O display control module (2.4).
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| CN109901600A (en) * | 2019-03-08 | 2019-06-18 | 宁波天擎航天科技有限公司 | A kind of spacecraft flight control method, system and device |
| CN113062813B (en) * | 2021-04-02 | 2022-08-16 | 重庆红江机械有限责任公司 | Phase redundancy fault-tolerant control system and method for diesel engine electronic injection system |
| CN113464290B (en) * | 2021-06-28 | 2023-08-11 | 航天时代飞鸿技术有限公司 | Aviation piston engine supercharging self-adaptive control method and system |
| CN114280989A (en) * | 2021-12-16 | 2022-04-05 | 海鹰企业集团有限责任公司 | Electric control unit circuit of high-pressure common-rail high-speed diesel engine for ship |
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