CN112682205A - Engine rotating speed control method, electronic control equipment and engine - Google Patents
Engine rotating speed control method, electronic control equipment and engine Download PDFInfo
- Publication number
- CN112682205A CN112682205A CN202011631797.7A CN202011631797A CN112682205A CN 112682205 A CN112682205 A CN 112682205A CN 202011631797 A CN202011631797 A CN 202011631797A CN 112682205 A CN112682205 A CN 112682205A
- Authority
- CN
- China
- Prior art keywords
- rotating speed
- engine
- crankshaft
- camshaft
- working condition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The disclosure relates to an engine speed control method, an electronic control device and an engine, wherein the method comprises the following steps: determining the working states of a crankshaft rotating speed sensor and a camshaft rotating speed sensor and the working condition of an engine; when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are in normal working states and the working condition of the engine is any one of an idling working condition, a speed regulation working condition and an ultrahigh speed working condition, determining the actual rotating speed of the engine according to the absolute value of the difference value between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft; controlling operation of the engine based on the determined actual speed. Through the method, the rotating speed source of the engine can be selected by utilizing the working states of the crankshaft rotating speed sensor and the camshaft rotating speed sensor and the working condition of the engine, the accuracy, the stability and the following performance of the rotating speed calculation of the engine can be improved, and the control performance of the engine is improved.
Description
Technical Field
The disclosure relates to the technical field of engine electric control systems, in particular to an engine rotating speed control method, electric control equipment and an engine.
Background
An engine electric control system is the core technology of advanced engines. The electric control system mainly realizes the closed-loop control of the engine state by controlling the actions of the engine such as oil injection and the like. The engine rotating speed belongs to engine state parameters and engine control target parameters, and participates in various links such as working condition identification, control parameter calculation, control parameter correction, control parameter driving implementation and the like. In addition, the engine speed is also a main core parameter for the working condition switching. Therefore, accurate calculation of the engine speed parameter is a necessary basis for realizing closed-loop control of the engine state, and has important influence on the performance of an engine electric control system.
Disclosure of Invention
In view of this, the present disclosure provides an engine speed control method, an electronic control device, and an engine, so as to improve accuracy, stability, and following performance of engine speed calculation.
According to an aspect of the present disclosure, there is provided an engine speed control method including:
determining the working states of a crankshaft rotating speed sensor and a camshaft rotating speed sensor and the working condition of an engine;
when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are in normal working states and the working condition of the engine is any one of an idling working condition, a speed regulation working condition and an ultrahigh speed working condition, determining the actual rotating speed of the engine according to the absolute value of the difference value between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
controlling operation of the engine based on the determined actual speed.
In one possible embodiment, the determining the actual speed of the engine according to the absolute value of the difference between the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft comprises:
determining the minimum value of absolute values of differences between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
and determining the actual rotating speed according to one of the two rotating speeds corresponding to the minimum value.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the camshaft, determining the actual rotating speed according to the average rotating speed of the camshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the average rotating speed of the camshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In one possible embodiment, the method further comprises:
and when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states according to the working states of the rotating speed sensor and the camshaft rotating speed sensor, and the working condition of the engine is a stopping working condition or a starting working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft.
In one possible embodiment, the method further comprises:
when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, and the working condition of the engine is a stop working condition or a start working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft; or
And when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, the working condition of the engine is a stop working condition or a start working condition, and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an overspeed working condition, determining the actual rotating speed of the engine according to the average rotating speed of the crankshaft.
In one possible embodiment, the method further comprises:
and when the camshaft rotating speed sensor is in a normal working state and the crankshaft rotating speed sensor is in a fault state, determining the actual rotating speed of the engine according to the average rotating speed of the camshaft.
In one possible embodiment, the method further comprises:
and determining the working condition of the engine according to the actual rotating speed and/or the accelerator opening data of the engine and a plurality of rotating speed critical values, and switching among the working conditions.
In one possible embodiment, the method further comprises:
determining the instantaneous rotating speed of the crankshaft according to the tooth width counting information and the tooth width data information acquired by the crankshaft rotating speed sensor and the total tooth number of the crankshaft;
determining the average rotating speed of the crankshaft according to the time of one circle of rotation of the crankshaft acquired by the crankshaft rotating speed sensor;
and determining the average rotating speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotating speed sensor.
In one possible embodiment, the controlling the operation of the engine based on the determined actual rotation speed includes:
determining a target rotating speed of the engine according to the opening degree of the accelerator;
and adjusting the fuel injection parameters of the engine according to the difference between the target rotating speed and the actual rotating speed so as to control the rotating speed of the engine to reach the target rotating speed.
According to another aspect of the present disclosure, there is provided an engine rotational speed control apparatus including:
the first determination module is used for determining the working states of the crankshaft rotating speed sensor and the camshaft rotating speed sensor and the working condition of the engine;
the second determining module is electrically connected with the first determining module and used for determining the actual rotating speed of the engine according to the absolute value of the difference value between the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in the normal working state and the working condition of the engine is any one of the idle working condition, the speed regulating working condition and the ultra-high speed working condition;
and the control module is electrically connected with the second determination module and is used for controlling the engine to operate according to the determined actual rotating speed.
In one possible embodiment, the determining the actual speed of the engine according to the absolute value of the difference between the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft comprises:
determining the minimum value of absolute values of differences between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
and determining the actual rotating speed according to one of the two rotating speeds corresponding to the minimum value.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the camshaft, determining the actual rotating speed according to the average rotating speed of the camshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the average rotating speed of the camshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In a possible embodiment, the apparatus further comprises:
and the third determining module is used for determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft when the working states of the rotating speed sensor and the camshaft rotating speed sensor are determined to be normal working states and the working condition of the engine is a stop working condition or a start working condition.
In a possible implementation, the apparatus further includes a fourth determining module configured to:
when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, and the working condition of the engine is a stop working condition or a start working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft; or
And when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, the working condition of the engine is a stop working condition or a start working condition, and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an overspeed working condition, determining the actual rotating speed of the engine according to the average rotating speed of the crankshaft.
In a possible embodiment, the apparatus further comprises:
and the fifth determining module is used for determining the actual rotating speed of the engine according to the average rotating speed of the camshaft when the camshaft rotating speed sensor is in a normal working state and the crankshaft rotating speed sensor is in a fault state.
In a possible embodiment, the apparatus further comprises:
and the processing module is used for determining the working condition of the engine according to the actual rotating speed and/or the accelerator opening data of the engine and a plurality of rotating speed critical values and realizing the switching among the working conditions.
In a possible implementation, the apparatus further includes a sixth determining module configured to:
determining the instantaneous rotating speed of the crankshaft according to the tooth width counting information and the tooth width data information acquired by the crankshaft rotating speed sensor and the total tooth number of the crankshaft;
determining the average rotating speed of the crankshaft according to the time of one circle of rotation of the crankshaft acquired by the crankshaft rotating speed sensor;
and determining the average rotating speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotating speed sensor.
In one possible embodiment, the controlling the operation of the engine based on the determined actual rotation speed includes:
determining a target rotating speed of the engine according to the opening degree of the accelerator;
and adjusting the fuel injection parameters of the engine according to the difference between the target rotating speed and the actual rotating speed so as to control the rotating speed of the engine to reach the target rotating speed.
According to another aspect of the present disclosure, there is provided an electronic control apparatus, the system comprising:
the engine speed control device.
According to another aspect of the present disclosure, there is provided an engine including:
the electric control equipment.
According to another aspect of the present disclosure, there is provided an engine rotational speed control apparatus including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to perform the above method.
According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-described method.
Through the method, the embodiment of the disclosure can select the rotating speed source of the engine by utilizing the working states of the crankshaft rotating speed sensor, the camshaft rotating speed sensor and the working condition of the engine, and when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an ultrahigh speed working condition, the actual rotating speed of the engine is determined according to the absolute value of the difference value between the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft, so that the accuracy, the stability and the following performance of the engine rotating speed calculation can be improved, and the control performance of the engine.
Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the disclosure and, together with the description, serve to explain the principles of the disclosure.
FIG. 1 shows a flow chart of an engine speed control method according to an embodiment of the present disclosure.
FIG. 2 shows a schematic diagram of engine oil amount control according to an embodiment of the present disclosure.
FIG. 3 shows a schematic diagram of an engine actual speed calculation according to an embodiment of the present disclosure.
FIG. 4 shows a schematic of engine operating condition determination and switching according to an embodiment of the present disclosure.
Fig. 5 shows a block diagram of an engine speed control apparatus according to an embodiment of the present disclosure.
Detailed Description
Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only 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 one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.
Referring to FIG. 1, FIG. 1 shows a flow chart of an engine speed control method according to an embodiment of the present disclosure.
As shown in fig. 1, the method includes:
step S11, determining the working states of the crankshaft speed sensor and the camshaft speed sensor and the working condition of the engine;
step S12, when the crankshaft rotation speed sensor and the camshaft rotation speed sensor are in normal working states and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an ultra-high speed working condition, determining the actual rotation speed of the engine according to the absolute value of the difference between the instantaneous rotation speed of the crankshaft, the average rotation speed of the crankshaft and the average rotation speed of the camshaft;
and step S13, controlling the operation of the engine according to the determined actual rotating speed.
Through the method, the embodiment of the disclosure can select the rotating speed source of the engine by utilizing the working states of the crankshaft rotating speed sensor, the camshaft rotating speed sensor and the working condition of the engine, and when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an ultrahigh speed working condition, the actual rotating speed of the engine is determined according to the absolute value of the difference value between the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft, so that the accuracy, the stability and the following performance of the engine rotating speed calculation can be improved, and the control performance of the engine.
In other embodiments of the related art, when the engine is controlled to rotate, one of the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft, or the average value of the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft, is directly selected as the speed of the engine, however, taking one of the values, when the speed abnormality occurs, the overall operation of the engine is likely to fail, and the stability of the data is insufficient. And when the rotating speed fluctuates rapidly, the average value is obtained, so that part of sensitive data is easily lost, and the data following performance is insufficient. The embodiment of the disclosure can effectively avoid the above conditions, and the rotating speed source of the engine is determined according to the state of the engine and the states of the sensors so as to adapt to the actual condition of the current engine, thereby improving the accuracy, flexibility and environmental adaptability of the rotating speed control of the engine.
In one possible embodiment, the above method may be performed by a processing component disposed in the engine, the processing component including, but not limited to, a single chip, or discrete components, or a combination of a chip and discrete components. The chip may be implemented in any suitable manner, for example, using a microprocessor, a Central Processing Unit (CPU), a control logic portion in a memory controller, and so on.
In one example, the engine may be an engine controlled by a high-pressure fuel injection system, or other types of engines, and of course, the technical solution of the embodiment of the present disclosure may also be applied to various fuel systems to achieve effective improvement of control performance at low cost through optimization of a calculation strategy.
The Engine speed Control method of the embodiment of the disclosure can be applied to an Electronic Control device to Control the Engine speed and improve the Control performance, wherein the Electronic Control device can be an Engine Management System (EMS) or an Electronic Control Unit (ECU).
Referring to fig. 2, fig. 2 is a schematic diagram illustrating engine oil amount control in a complete machine control strategy of an engine electric control system according to an embodiment of the disclosure.
In one example, as shown in fig. 2, the step of controlling the engine oil amount in the overall engine control strategy of the engine electrical control system may include acquiring engine state parameters (including engine speed, throttle opening, fuel state, air intake state, engine lubrication cooling state, and the like), identifying engine operating conditions, calculating control target parameters (including actual engine speed, oil injection parameters, air intake parameters, lubrication cooling parameters, and the like) for realizing control intentions, completing relevant parameter control through a bottom layer driver and an actuator (a time node for driving execution is positioned by depending on the engine speed and phase), further acquiring relevant engine state parameters, comparing the relevant engine state parameters with the control target parameters, correcting the control parameters, and realizing closed-loop control. Therefore, the engine rotating speed belongs to the engine state parameters and the engine control target parameters, and participates in various links such as working condition identification, control parameter calculation, control parameter correction, control parameter driving implementation and the like. In addition, the engine speed is also a main core parameter for the working condition switching. Therefore, the accuracy of the engine rotating speed parameter plays an important role in realizing the control performance of the engine, and the accurate actual rotating speed of the engine can be determined and applied to the EMS or the ECU so as to realize the accurate control of the engine.
The following provides an exemplary description of the implementation of the various steps performed by the present disclosure.
In one possible embodiment, the step S12 determining the actual speed of the engine according to the absolute value of the difference between the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft may include:
determining the minimum value of absolute values of differences between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
and determining the actual rotating speed according to one of the two rotating speeds corresponding to the minimum value.
In one example, the difference between two of the crankshaft instantaneous speed, the crankshaft average speed, and the camshaft average speed may include a difference between the crankshaft instantaneous speed and the crankshaft average speed, a difference between the crankshaft instantaneous speed and the camshaft average speed, and a difference between the camshaft average speed and the crankshaft average speed.
In one example, when determining the difference between two of the instantaneous crankshaft speed, the average crankshaft speed, and the average camshaft speed, the absolute value of the difference between two of the instantaneous crankshaft speed, the average crankshaft speed, and the average camshaft speed may be further determined.
In one example, when determining the absolute value of the difference between each two of the instantaneous crankshaft speed, the average crankshaft speed, and the average camshaft speed, the minimum value of the absolute values of the difference between each two of the instantaneous crankshaft speed, the average crankshaft speed, and the average camshaft speed may be further determined, and the actual speed may be further determined based on one of the two speeds corresponding to the minimum value.
In a possible embodiment, determining the actual rotation speed according to one of the two rotation speeds corresponding to the minimum value may include:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
Because the fluctuation of the average rotating speed of the crankshaft is smaller between the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, the embodiment of the disclosure determines the actual rotating speed according to the average rotating speed of the crankshaft, can reduce the fluctuation of the rotating speed, and improves the stability of engine control.
In a possible embodiment, determining the actual rotation speed according to one of the two rotation speeds corresponding to the minimum value may include:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the camshaft, determining the actual rotating speed according to the average rotating speed of the camshaft.
Because between the instantaneous rotational speed of bent axle and the average rotational speed of camshaft, the volatility of the average rotational speed of camshaft is littleer, consequently, this disclosed embodiment confirms actual rotational speed according to the average rotational speed of camshaft, can reduce the volatility of rotational speed, improves engine control's stability.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the average rotating speed of the camshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
Because the follow-up performance of the average rotating speed of the crankshaft is better between the average rotating speed of the camshaft and the average rotating speed of the crankshaft, the embodiment of the disclosure determines the actual rotating speed according to the average rotating speed of the crankshaft, can improve the follow-up performance of the rotating speed, and improves the accuracy of engine control.
In one possible embodiment, the method may further include:
and when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states according to the working states of the rotating speed sensor and the camshaft rotating speed sensor, and the working condition of the engine is a stopping working condition or a starting working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft.
The above description is made for the case where each sensor of the engine normally operates, and the following description is made for the case where each sensor of the engine malfunctions.
In one possible embodiment, the method may further include:
when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, and the working condition of the engine is a stop working condition or a start working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft; or
And when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, the working condition of the engine is a stop working condition or a start working condition, and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an overspeed working condition, determining the actual rotating speed of the engine according to the average rotating speed of the crankshaft.
In one possible embodiment, the method may further include:
and when the camshaft rotating speed sensor is in a normal working state and the crankshaft rotating speed sensor is in a fault state, determining the actual rotating speed of the engine according to the average rotating speed of the camshaft.
Through the method, the rotating speed control of the engine can be realized based on the states of the engine crankshaft rotating speed sensor and the camshaft rotating speed sensor and the working condition adaptability of the engine, and the accuracy, flexibility and environment adaptability of the rotating speed control are improved.
In one possible embodiment, the controlling the operation of the engine based on the determined actual rotation speed includes: determining a target rotating speed of the engine according to the opening degree of the accelerator; and adjusting the fuel injection parameters of the engine according to the difference between the target rotating speed and the actual rotating speed so as to control the rotating speed of the engine to reach the target rotating speed.
It should be noted that, in the embodiment of the present disclosure, a specific implementation manner of determining the target rotation speed of the engine according to the accelerator opening and adjusting the fuel injection parameter of the engine according to the difference between the target rotation speed and the actual rotation speed is not limited, and a person skilled in the art may select a related technology as needed to implement the target rotation speed.
Through the method, the target rotating speed of the engine can be determined according to the opening degree of the accelerator, the oil injection parameter of the engine is adjusted according to the difference between the target rotating speed and the actual rotating speed, so that the rotating speed of the engine is controlled to reach the target rotating speed, and the accuracy, flexibility and environmental adaptability of rotating speed control can be improved.
The method for calculating the instantaneous speed of the crankshaft, the average speed of the crankshaft and the average speed of the camshaft will be described in an exemplary manner.
In one possible embodiment, the method may further include:
determining the instantaneous rotating speed of the crankshaft according to the tooth width counting information and the tooth width data information acquired by the crankshaft rotating speed sensor and the total tooth number of the crankshaft; determining the average rotating speed of the crankshaft according to the time of one circle of rotation of the crankshaft acquired by the crankshaft rotating speed sensor; and determining the average rotating speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotating speed sensor.
In one example, as shown in table 1, the determining the instantaneous rotational speed of the crankshaft according to the tooth width count information, the tooth width data information and the total number of teeth of the crankshaft obtained by the crankshaft rotational speed sensor may specifically include:
when the tooth width count is less than or equal to 6 in the tooth width count information acquired by the crankshaft rotational speed sensor, the instantaneous rotational speed is not calculated. When the number of crankshaft teeth count is greater than 6, the calculation of the crankshaft instantaneous speed is started.
In one example, the tooth width data for 6 crankshaft teeth may be recorded via a register (or other memory). When 6 recorded tooth width data contain missing tooth widths, the average number of the tooth widths is/8 of the sum of the tooth width array elements; when 6 recorded tooth width data do not contain missing tooth widths, the average number of the tooth widths is the sum of tooth width array elements/6; according to the average number of the tooth widths, the instantaneous rotating speed of the crankshaft is calculated, and the calculation formula can be as follows: the instantaneous speed (rpm) of the crankshaft is 60/total number of teeth of the crankshaft/average width(s) of teeth of the crankshaft.
In one example, as shown in table 1, determining the average rotation speed of the crankshaft according to the time of one rotation of the crankshaft acquired by the crankshaft rotation speed sensor may specifically include: after the crankshaft has rotated one revolution, the calculation of the average crankshaft speed may begin.
In one example, the register records the time of a crankshaft rotating for one circle, and then the average rotating speed of the crankshaft can be calculated according to the following formula: the average crankshaft speed (rpm) is 60/crankshaft revolution time(s).
In one example, as shown in table 1, determining the average rotation speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotation speed sensor may specifically include: after the camshaft makes one revolution, the calculation of the average camshaft rotation speed can be started.
In one example, the average rotational speed of the camshaft can be calculated by recording the time of one rotation of the camshaft by a register, and the calculation formula is as follows: the average camshaft speed (rpm) is 60 × 2/time(s) of one camshaft revolution. The characteristics and applicable conditions of each rotation speed can refer to table 1, and are not described herein again.
TABLE 1
The overall flow of the engine speed control will be described below by way of example.
Referring to fig. 3, fig. 3 shows a schematic diagram of an actual engine speed calculation according to an embodiment of the present disclosure.
In a possible implementation manner, as shown in fig. 3, the embodiment of the present disclosure may first determine whether a signal of the camshaft rotation speed sensor is normal (whether the signal exists or not, or other determination manners, which are not limited to the embodiment of the present disclosure), when the signal of the camshaft rotation speed sensor is normal, it may be determined that the camshaft rotation speed sensor is in a normal operating state, and when the signal of the camshaft rotation speed sensor is not normal, it may be determined that the camshaft rotation speed sensor is in a fault state. When the working state of the camshaft revolution speed sensor is determined, whether the signal of the crankshaft revolution speed sensor is normal or not can be further determined (whether the signal exists or not, or other judging ways, which are not limited in the embodiment of the disclosure), when the signal of the crankshaft revolution speed sensor is normal, the crankshaft revolution speed sensor can be determined to be in a normal working state, and when the signal of the crankshaft revolution speed sensor is abnormal, the crankshaft revolution speed sensor can be determined to be in a fault state.
In one possible embodiment, as shown in fig. 3, if the camshaft rotation speed sensor fails, the crankshaft instantaneous rotation speed is taken as the engine rotation speed source under the shutdown condition and the startup condition; and taking the average rotating speed of the crankshaft as an engine rotating speed source under the idle speed working condition, the speed regulation working condition and the overspeed working condition.
In one possible embodiment, as shown in FIG. 3, if the crankshaft speed sensor fails, the average camshaft speed is taken as the engine speed source for all operating conditions.
In a possible implementation, as shown in fig. 3, if both the camshaft rotation speed sensor and the crankshaft rotation speed sensor are in normal working states (it can be considered that the engine works normally), the corresponding rotation speed is further determined according to the working condition of the engine, and when the engine works normally, in one example, under the shutdown working condition and the start working condition, the instantaneous rotation speed of the crankshaft is taken as the engine rotation speed source; in one example, under the idle condition, the speed regulation condition and the overspeed condition, a reasonable camshaft/crankshaft rotation speed is selected as an engine rotation speed source by calculating a rotation speed difference between three rotation speed sources (please refer to the previous description, and the description is omitted here).
The following is an exemplary description of the manner in which engine operating conditions are determined and switched.
Referring to FIG. 4, FIG. 4 illustrates a schematic diagram of engine operating condition determination and switching according to an embodiment of the present disclosure.
In one possible embodiment, the method may further include:
and determining the working condition of the engine according to the actual rotating speed and/or the accelerator opening data of the engine and a plurality of rotating speed critical values, and switching among the working conditions.
In one example, as shown in FIG. 4, the operating conditions of the engine may include a shutdown condition, a start condition, an idle condition, a throttle condition, and an over speed condition.
In one example, as shown in FIG. 4, the engine is increased from a stop condition and switched to a start condition when the speed exceeds a start threshold n 1.
In one example, as shown in fig. 4, during the starting condition, when the rotating speed is further increased and exceeds the idle threshold n2, the engine is switched to the idle state, wherein the starting condition of the engine can refer to the state that the rotating speed of the engine is between the threshold n1 and the threshold n2, and n2 is larger than n 1.
In one example, as shown in fig. 4, during the starting condition and the idling condition, when the rotating speed is reduced and is lower than the stop critical value n3, the engine is switched to the stop condition, wherein the stop condition of the engine can refer to that the engine is in a state that the rotating speed is lower than the critical value n3, and n3 is less than or equal to n 1.
In one example, as shown in FIG. 4, at idle conditions, when the engine throttle opening is greater than the throttle threshold k1, the engine switches to a throttle condition.
In one example, as shown in FIG. 4, during a throttle condition, when the engine throttle opening is less than an idle threshold k2, the engine switches to an idle condition; when the engine speed exceeds an overspeed threshold value n4, the engine is switched to an overspeed condition, wherein the idling condition can mean that the engine is in a state that the engine speed is greater than a threshold value n2 and the throttle opening is smaller than k2, n4 is greater than n2, and k1 is greater than k 2.
In one example, as shown in fig. 4, during an overspeed condition, the engine switches to a throttle condition when the engine speed is below a throttle threshold n5, wherein the overspeed condition may refer to the engine being in a state where the speed is greater than the threshold n4, and the throttle condition may refer to the engine being in a state where the engine is under load less than the threshold n5 and the throttle opening is greater than k 1.
Referring to fig. 5, fig. 5 shows a block diagram of an engine speed control apparatus according to an embodiment of the present disclosure.
In one example, as shown in fig. 5, the apparatus includes:
the first determination module 10 is used for determining the working states of a crankshaft rotating speed sensor and a camshaft rotating speed sensor and the working condition of an engine;
the second determining module 20 is electrically connected to the first determining module 10, and configured to determine an actual rotational speed of the engine according to an absolute value of a difference between an instantaneous rotational speed of the crankshaft, an average rotational speed of the crankshaft, and an average rotational speed of the camshaft when it is determined that the crankshaft rotational speed sensor and the camshaft rotational speed sensor are in a normal operating state and a working condition of the engine is any one of an idle working condition, a speed regulation working condition, and an ultra-high speed working condition;
and the control module 30 is electrically connected to the second determination module 20 and is used for controlling the engine to operate according to the determined actual rotating speed.
Through the device, the embodiment of the disclosure can select the rotating speed source of the engine by utilizing the working states of the crankshaft rotating speed sensor, the camshaft rotating speed sensor and the working condition of the engine, when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an ultrahigh speed working condition, the actual rotating speed of the engine is determined according to the absolute value of the difference value between the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft, so that the accuracy, the stability and the following performance of the engine rotating speed calculation can be improved, and the control performance of the engine is.
In one possible embodiment, the determining the actual speed of the engine according to the absolute value of the difference between the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft comprises:
determining the minimum value of absolute values of differences between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
and determining the actual rotating speed according to one of the two rotating speeds corresponding to the minimum value.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the camshaft, determining the actual rotating speed according to the average rotating speed of the camshaft.
In one possible embodiment, determining the actual rotational speed from one of the two rotational speeds corresponding to the minimum value includes:
and when the two rotating speeds corresponding to the minimum value are the average rotating speed of the camshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
In a possible embodiment, the apparatus further comprises:
and the third determining module is used for determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft when the working states of the rotating speed sensor and the camshaft rotating speed sensor are determined to be normal working states and the working condition of the engine is a stop working condition or a start working condition.
In a possible implementation, the apparatus further includes a fourth determining module configured to:
when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, and the working condition of the engine is a stop working condition or a start working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft; or
And when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, the working condition of the engine is a stop working condition or a start working condition, and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an overspeed working condition, determining the actual rotating speed of the engine according to the average rotating speed of the crankshaft.
In a possible embodiment, the apparatus further comprises:
and the fifth determining module is used for determining the actual rotating speed of the engine according to the average rotating speed of the camshaft when the camshaft rotating speed sensor is in a normal working state and the crankshaft rotating speed sensor is in a fault state.
In a possible embodiment, the apparatus further comprises:
and the processing module is used for determining the working condition of the engine according to the actual rotating speed and/or the accelerator opening data of the engine and a plurality of rotating speed critical values and realizing the switching among the working conditions.
In a possible implementation, the apparatus further includes a sixth determining module configured to:
determining the instantaneous rotating speed of the crankshaft according to the tooth width counting information and the tooth width data information acquired by the crankshaft rotating speed sensor and the total tooth number of the crankshaft;
determining the average rotating speed of the crankshaft according to the time of one circle of rotation of the crankshaft acquired by the crankshaft rotating speed sensor;
and determining the average rotating speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotating speed sensor.
Through the device, the rotating speed control of the engine can be realized based on the states of the engine crankshaft rotating speed sensor and the camshaft rotating speed sensor and the working condition adaptability of the engine, and the accuracy, flexibility and environment adaptability of the rotating speed control are improved.
It should be noted that the above apparatus corresponds to the foregoing method, and for specific introduction, reference is made to the foregoing description, and details are not repeated again.
The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.
The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).
Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (14)
1. An engine speed control method, characterized by comprising:
determining the working states of a crankshaft rotating speed sensor and a camshaft rotating speed sensor and the working condition of an engine;
when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are in normal working states and the working condition of the engine is any one of an idling working condition, a speed regulation working condition and an ultrahigh speed working condition, determining the actual rotating speed of the engine according to the absolute value of the difference value between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
controlling operation of the engine based on the determined actual speed.
2. The method of claim 1, wherein determining the actual speed of the engine based on the absolute value of the difference between the instantaneous speed of the crankshaft, the average speed of the crankshaft, and the average speed of the camshaft comprises:
determining the minimum value of absolute values of differences between every two of the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft;
and determining the actual rotating speed according to one of the two rotating speeds corresponding to the minimum value.
3. The method of claim 2, wherein determining the actual rotational speed from one of two rotational speeds corresponding to the minimum value comprises:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
4. The method of claim 2, wherein determining the actual rotational speed from one of two rotational speeds corresponding to the minimum value comprises:
and when the two rotating speeds corresponding to the minimum value are the instantaneous rotating speed of the crankshaft and the average rotating speed of the camshaft, determining the actual rotating speed according to the average rotating speed of the camshaft.
5. The method of claim 2, wherein determining the actual rotational speed from one of two rotational speeds corresponding to the minimum value comprises:
and when the two rotating speeds corresponding to the minimum value are the average rotating speed of the camshaft and the average rotating speed of the crankshaft, determining the actual rotating speed according to the average rotating speed of the crankshaft.
6. The method of claim 1, further comprising:
and when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in normal working states according to the working states of the rotating speed sensor and the camshaft rotating speed sensor, and the working condition of the engine is a stopping working condition or a starting working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft.
7. The method of claim 1, further comprising:
when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, and the working condition of the engine is a stop working condition or a start working condition, determining the actual rotating speed of the engine according to the instantaneous rotating speed of the crankshaft; or
And when the camshaft rotating speed sensor is determined to be in a fault state, the crankshaft rotating speed sensor is determined to be in a normal working state, the working condition of the engine is a stop working condition or a start working condition, and the working condition of the engine is any one of an idle working condition, a speed regulation working condition and an overspeed working condition, determining the actual rotating speed of the engine according to the average rotating speed of the crankshaft.
8. The method of claim 1, further comprising:
and when the camshaft rotating speed sensor is in a normal working state and the crankshaft rotating speed sensor is in a fault state, determining the actual rotating speed of the engine according to the average rotating speed of the camshaft.
9. The method of claim 1, further comprising:
and determining the working condition of the engine according to the actual rotating speed and/or the accelerator opening data of the engine and a plurality of rotating speed critical values, and switching among the working conditions.
10. The method of claim 1, further comprising:
determining the instantaneous rotating speed of the crankshaft according to the tooth width counting information and the tooth width data information acquired by the crankshaft rotating speed sensor and the total tooth number of the crankshaft;
determining the average rotating speed of the crankshaft according to the time of one circle of rotation of the crankshaft acquired by the crankshaft rotating speed sensor;
and determining the average rotating speed of the camshaft according to the time of one rotation of the camshaft acquired by the camshaft rotating speed sensor.
11. The method of claim 1, wherein said controlling operation of said engine based on said determined actual speed comprises:
determining a target rotating speed of the engine according to the opening degree of the accelerator;
and adjusting the fuel injection parameters of the engine according to the difference between the target rotating speed and the actual rotating speed so as to control the rotating speed of the engine to reach the target rotating speed.
12. An engine speed control apparatus, characterized by comprising:
the first determination module is used for determining the working states of the crankshaft rotating speed sensor and the camshaft rotating speed sensor and the working condition of the engine;
the second determining module is electrically connected with the first determining module and used for determining the actual rotating speed of the engine according to the absolute value of the difference value between the instantaneous rotating speed of the crankshaft, the average rotating speed of the crankshaft and the average rotating speed of the camshaft when the crankshaft rotating speed sensor and the camshaft rotating speed sensor are determined to be in the normal working state and the working condition of the engine is any one of the idle working condition, the speed regulating working condition and the ultra-high speed working condition;
and the control module is electrically connected with the second determination module and is used for controlling the engine to operate according to the determined actual rotating speed.
13. An electrically controlled device, characterized in that the system comprises:
the engine speed control apparatus according to claim 12.
14. An engine, characterized in that the engine comprises:
an electrically controlled device according to claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631797.7A CN112682205B (en) | 2020-12-31 | 2020-12-31 | Engine rotating speed control method, electronic control equipment and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011631797.7A CN112682205B (en) | 2020-12-31 | 2020-12-31 | Engine rotating speed control method, electronic control equipment and engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112682205A true CN112682205A (en) | 2021-04-20 |
| CN112682205B CN112682205B (en) | 2022-02-08 |
Family
ID=75455918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011631797.7A Active CN112682205B (en) | 2020-12-31 | 2020-12-31 | Engine rotating speed control method, electronic control equipment and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112682205B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719361A (en) * | 2020-05-22 | 2021-11-30 | 纳博特斯克有限公司 | Ship control device, ship control method, and computer-readable recording medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105788A (en) * | 1990-07-10 | 1992-04-21 | Robert Bosch Gmbh | Fuel injection system for an internal-combustion engine |
| US5699771A (en) * | 1996-02-19 | 1997-12-23 | Mitsubishi Denki Kabushiki Kaisha | Fuel controller for internal combustion engine |
| EP1327761A2 (en) * | 2002-01-15 | 2003-07-16 | Robert Bosch Gmbh | Process for verifying the operation of two sensors |
| CN102331721A (en) * | 2011-09-28 | 2012-01-25 | 潍柴动力股份有限公司 | Method, device and system for testing dynamic analog simulation of electronic control diesel engine |
| CN103670749A (en) * | 2013-11-06 | 2014-03-26 | 潍柴动力股份有限公司 | High pressure common rail system control method and device |
| JP2014202165A (en) * | 2013-04-08 | 2014-10-27 | ダイハツ工業株式会社 | Control device for internal combustion engine |
| CN104747309A (en) * | 2013-12-26 | 2015-07-01 | 联创汽车电子有限公司 | Engine position management system and management method |
| CN206144677U (en) * | 2016-10-26 | 2017-05-03 | 无锡威孚高科技集团股份有限公司 | Engine speed signal fault handling device |
| CN111828184A (en) * | 2020-07-31 | 2020-10-27 | 无锡威孚高科技集团股份有限公司 | Control method and system for quick response of sudden loading and unloading of electric control generator set |
-
2020
- 2020-12-31 CN CN202011631797.7A patent/CN112682205B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5105788A (en) * | 1990-07-10 | 1992-04-21 | Robert Bosch Gmbh | Fuel injection system for an internal-combustion engine |
| US5699771A (en) * | 1996-02-19 | 1997-12-23 | Mitsubishi Denki Kabushiki Kaisha | Fuel controller for internal combustion engine |
| EP1327761A2 (en) * | 2002-01-15 | 2003-07-16 | Robert Bosch Gmbh | Process for verifying the operation of two sensors |
| CN102331721A (en) * | 2011-09-28 | 2012-01-25 | 潍柴动力股份有限公司 | Method, device and system for testing dynamic analog simulation of electronic control diesel engine |
| JP2014202165A (en) * | 2013-04-08 | 2014-10-27 | ダイハツ工業株式会社 | Control device for internal combustion engine |
| CN103670749A (en) * | 2013-11-06 | 2014-03-26 | 潍柴动力股份有限公司 | High pressure common rail system control method and device |
| CN104747309A (en) * | 2013-12-26 | 2015-07-01 | 联创汽车电子有限公司 | Engine position management system and management method |
| CN206144677U (en) * | 2016-10-26 | 2017-05-03 | 无锡威孚高科技集团股份有限公司 | Engine speed signal fault handling device |
| CN111828184A (en) * | 2020-07-31 | 2020-10-27 | 无锡威孚高科技集团股份有限公司 | Control method and system for quick response of sudden loading and unloading of electric control generator set |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719361A (en) * | 2020-05-22 | 2021-11-30 | 纳博特斯克有限公司 | Ship control device, ship control method, and computer-readable recording medium |
| CN113719361B (en) * | 2020-05-22 | 2024-03-15 | 纳博特斯克有限公司 | Ship control device, ship control method, and computer-readable recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112682205B (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112682205B (en) | Engine rotating speed control method, electronic control equipment and engine | |
| CN110995117B (en) | Motor function safety control method and device | |
| CN110219820B (en) | Server fan speed regulation method, device, equipment and readable storage medium | |
| CN110985220B (en) | Engine speed control method, device, equipment and storage medium | |
| JP2019027394A (en) | Torque monitoring device and internal combustion engine control system | |
| CN107687373B (en) | Failure protection device of engine | |
| US20180321669A1 (en) | Method for operating a control unit of a motor vehicle | |
| CN113266457B (en) | Method and device for overheat protection of engine | |
| CN114954416A (en) | Vehicle control method and device, storage medium, electronic equipment and vehicle | |
| EP2656161A1 (en) | Adaptive cooling using selectable target useful life | |
| US10183578B2 (en) | Vehicle cluster gauge system and method for calibrating the same | |
| CN110552800B (en) | Throttle control method and device | |
| CN115977985A (en) | Fan control method and device, electronic equipment and storage medium | |
| CN115303292A (en) | Hydraulic system fault diagnosis method, vehicle driving system control method and vehicle | |
| TW201432431A (en) | Fan controlling method and notebook thereof | |
| CN114083987A (en) | Battery monitoring parameter correction method and device and computer equipment | |
| CN112539115B (en) | Control method and device for oil quantity metering valve | |
| CN110966131B (en) | Engine ignition control method and device and electronic control unit | |
| CN117189442A (en) | Engine control method, engine control device, computer readable storage medium and computer readable storage medium | |
| WO2023233611A1 (en) | Electronic control device | |
| CN116107793B (en) | Unmanned aerial vehicle power system fault storage method and device | |
| CN111669104B (en) | Motor driving method, device, terminal and storage medium | |
| CN115675440A (en) | Hybrid vehicle driving motor control method, device, medium and hybrid vehicle | |
| CN117345452A (en) | Fault processing method, device and system for variable valve speed sensor of engine | |
| CN115142975A (en) | Method for determining fuel injection advance angle, controller and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |