CN111287875B - Engine reverse ignition suppression method and device, computer equipment and storage medium - Google Patents
Engine reverse ignition suppression method and device, computer equipment and storage medium Download PDFInfo
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- CN111287875B CN111287875B CN202010115708.7A CN202010115708A CN111287875B CN 111287875 B CN111287875 B CN 111287875B CN 202010115708 A CN202010115708 A CN 202010115708A CN 111287875 B CN111287875 B CN 111287875B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P11/00—Safety means for electric spark ignition, not otherwise provided for
- F02P11/02—Preventing damage to engines or engine-driven gearing
Abstract
The application relates to an engine reverse ignition suppression method and device, computer equipment and a storage medium. The engine reverse ignition suppression method comprises the following steps: acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates; judging whether the double-lug-boss magneto is about to rotate reversely according to a trigger pulse signal generated by a trigger when each lug boss passes through the trigger in the adjacent front and back rotation; if the double-lug boss magnetor is judged to be about to rotate reversely, the subsequent rotation of the igniter is controlled to be not ignited. By utilizing the working principle of the double-lug-boss magneto and the trigger pulse signal, whether the engine has a reversal trend or not is judged, the igniter can be controlled not to ignite when the engine reverses, and the damage of the starting clutch of the engine caused by the recoil is eliminated, so that the running stability of the vehicle is improved, and the service life of the vehicle is prolonged.
Description
Technical Field
The invention relates to the technical field of ignition control, in particular to a method and a device for inhibiting reverse ignition of an engine, computer equipment and a storage medium.
Background
The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.
The ignition system of the common motorcycle can ignite as long as the trigger pulse signal of the rotor is recognized. The engine adopts the ignition of the triggering back edge when the rotating speed is low, and the ignition advance angle when the rotating speed is high. When abnormal flameout such as high-speed braking flameout and idling flameout is started, the common ignition system cannot judge whether the engine is about to rotate reversely or not, the engine still ignites to work when rotating reversely, and the impact force of high-speed reverse rotation causes the starting one-way clutch to be damaged.
Disclosure of Invention
In view of the above, it is necessary to provide an engine reverse ignition suppression method and apparatus, a computer device, and a storage medium, for solving the problem that the ignition system in the conventional technology may perform ignition work when the engine is in reverse rotation, thereby causing damage to the one-way clutch.
The embodiment of the invention provides a method for inhibiting reverse ignition of an engine, which comprises the following steps:
acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
judging whether the double-lug-boss magneto is about to rotate reversely according to a trigger pulse signal generated by a trigger when each lug boss passes through the trigger in the adjacent front and back rotation;
if the double-lug boss magnetor is judged to be about to rotate reversely, the subsequent rotation of the igniter is controlled to be not ignited.
The engine reversal ignition suppression method provided by the embodiment of the application comprises the steps of obtaining a trigger pulse signal generated by a trigger when a magneto rotates, analyzing the change situation of a front-back rotation pulse of the trigger pulse signal, judging whether the double-boss magneto has the situation of sudden great-amplitude speed reduction, if so, indicating that the double-boss magneto is about to reverse, namely, the engine is about to reverse, controlling an igniter to not ignite when the engine reverses so as to avoid the damage of a starting clutch caused by ignition of the igniter when the engine reverses, and controlling the igniter to not ignite when the trigger signal comes along the rear edge of the rear boss, for example, directly controlling the igniter to stop working. By adopting the method for inhibiting the reverse rotation ignition of the engine, whether the engine has a reverse rotation trend or not can be judged, the igniter can be controlled not to ignite when the engine rotates reversely, and the damage of the starting clutch of the engine caused by the recoil is eliminated, so that the running stability of a vehicle is improved and the service life of the vehicle is prolonged.
In one embodiment, the step of determining whether the twin-lobe magnetor is about to reverse according to a trigger pulse signal generated by the trigger when each lobe passes through the trigger in two adjacent front and rear revolutions and a threshold value of the advance angular rotation speed includes:
acquiring first time according to a trigger pulse signal generated by a trigger when each boss in two adjacent front and back turns passes through the trigger, wherein the first time is the time from the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the front turn passes through the trigger to the starting time of a reverse pulse of the trigger pulse signal;
obtaining the rotating speed of the front-rotating double-boss magneto according to the first time and the size parameters of the first boss;
judging whether the double-lug-boss magneto is about to rotate reversely according to the rotating speed of the double-lug-boss magneto, a trigger pulse signal generated by a trigger when each lug boss in the adjacent front and back rotation passes through the trigger and a threshold value of the rotating speed of the advance angle;
wherein, the double boss magneto includes first boss.
In one embodiment, the step of determining whether the twin-lobe magneto is about to reverse according to the rotation speed of the twin-lobe magneto, a trigger pulse signal generated by the trigger when each lobe of two adjacent front and rear revolutions passes through the trigger, and a threshold of the advance rotation speed further includes:
if the rotating speed of the front-turn double-lug-plate magneto is lower than the rotating speed threshold of the advance angle, judging whether second time is greater than a time threshold, wherein the second time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when a first lug plate of a next turn passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
if the current value is larger than the preset value, the igniter is controlled not to ignite in the next revolution.
In one embodiment, the step of determining whether the twin-lobe magneto is about to reverse according to the rotation speed of the twin-lobe magneto, a trigger pulse signal generated by the trigger when each lobe of two adjacent front and rear revolutions passes through the trigger, and a threshold of the advance rotation speed includes:
if the rotating speed of the front-turn double-lug-plate magneto is higher than the rotating speed threshold of the advance angle, judging whether a fourth time is more than a third time of k times, wherein the third time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when the front-turn second lug plate passes through the trigger and the ending time of an inverted pulse of the trigger pulse signal, and the fourth time is the time between the starting time of the forward pulse of the trigger pulse signal generated by the trigger when the rear-turn second lug plate passes through the trigger and the ending time of the inverted pulse of the trigger pulse signal;
if the current value is larger than the preset value, controlling the igniter to not ignite in the next revolution;
wherein, the double-lug-boss magneto comprises a second lug boss, and k is a positive number larger than 1.
In one embodiment, k is 2.
In one embodiment, the double-boss magneto comprises a first boss and a second boss, the length of the first boss is larger than that of the second boss, and the double-boss magneto rotates along the first boss to the second boss.
An engine reverse ignition suppression device comprising:
the trigger pulse signal acquisition module is used for acquiring a trigger pulse signal generated by the trigger when the double-lug-boss magnetor rotates;
the motor reverse rotation judging module is used for judging whether the double-lug-boss magneto is about to reverse according to a trigger pulse signal generated by the trigger when each lug boss in the adjacent front and back rotation passes through the trigger;
and the reverse ignition suppression module is used for controlling the next rotation of the igniter to be not ignited when the double-lug-boss magneto is judged to be about to reverse.
In one embodiment, the motor reverse rotation determining module includes:
the first time acquisition unit is used for acquiring first time according to a trigger pulse signal generated by the trigger when each boss in two adjacent front and back revolutions passes through the trigger, wherein the first time is the time between the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the front revolution passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
the motor rotating speed obtaining unit is used for obtaining the rotating speed of the front-rotating double-lug-boss magneto according to the first time and the size parameter of the first lug boss;
and the judging and executing unit is used for judging whether the double-lug-boss magneto is about to rotate reversely or not according to the rotating speed of the double-lug-boss magneto, a trigger pulse signal generated by the trigger when each lug boss in the adjacent front and back rotation passes through the trigger and an advance angle rotating speed threshold.
A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the engine misfire inhibition method when executing the program.
A computer-readable storage medium, having stored thereon a computer program which, when executed by a processor, carries out the steps of the engine reversal ignition suppression method described above.
Drawings
FIG. 1 is a schematic flow chart of a method for suppressing engine misfire in one embodiment;
FIG. 2 is a schematic diagram of a dual-lobed magneto in one embodiment;
FIG. 3 is a flowchart illustrating a method for suppressing engine misfire in another embodiment;
FIG. 4 is a schematic diagram illustrating the relationship between the ignition advance angle and the rotation speed in one embodiment;
FIG. 5 is a diagram illustrating the relationship between the trigger pulse signal, the ignition signal, and the starter motor voltage when the engine reverse ignition suppression method is employed in an embodiment without performing ignition at a predetermined angle;
FIG. 6 is a diagram of the relationship between the trigger pulse signal, the ignition signal, and the starter motor voltage for another embodiment of the engine reverse ignition suppression method;
FIG. 7 is a flowchart illustrating a method for suppressing engine misfire in yet another embodiment;
FIG. 8 is a schematic diagram showing the construction of an engine reverse ignition suppression apparatus according to an embodiment;
FIG. 9 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The common motorcycle ignition system mostly adopts a single-lug-boss engine, and ignition can be realized as long as a trigger signal of a rotor is identified. The engine adopts the ignition of the triggering back edge when the rotating speed is low, and the ignition advance angle when the rotating speed is high. When abnormal flameout such as high-speed braking flameout and idling flameout is started, the common ignition system cannot judge whether the engine is about to rotate reversely or not, ignition is still performed to work when the engine rotates reversely, and the impact force of high-speed reverse rotation causes the starting one-way clutch to be damaged.
Based on this, the embodiment of the present invention provides an engine reverse ignition suppression method, as shown in fig. 1, including:
s20: acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
s40: judging whether the double-lug-boss magneto is about to rotate reversely according to a trigger pulse signal generated by a trigger when each lug boss passes through the trigger in the adjacent front and back rotation;
s60: if the double-lug boss magnetor is judged to be about to rotate reversely, the subsequent rotation of the igniter is controlled to be not ignited.
As shown in fig. 2, the dual-lug-boss magneto refers to an engine magneto having two lugs, and due to the two lugs (D1, D2), during rotation, each rotation generates two forward pulses and two reverse pulses, and along the rotation direction of the motor (e.g., counterclockwise as shown in the figure), the leading edge of the first passing lug boss D1 meets the trigger to generate a forward pulse signal, and as the motor continues to rotate, the trigger generates a reverse pulse signal. Similarly, as the second passing boss D2 rotates, the flip-flop sequentially generates a positive pulse signal and a negative pulse signal. The trigger pulse signal is the positive pulse signal and the negative pulse signal produced by the trigger when the double-lug boss magneto rotates. The latter turn is the next turn of two adjacent turns, which is compared to the previous turn. The control of the igniter to not ignite can be realized by that the inverted pulse of the second passing boss does not output ten thousand volts to ignite. The trigger can be a trigger coil in the motorcycle, generates high voltage electricity, and can achieve the purpose of generating electric sparks by further boosting through a high voltage pack.
Specifically, in the embodiment of the present application, for an engine magneto using two bosses, as shown in fig. 1, when the engine rotates forward, the trailing edge of the trigger pulse signal generated when the trailing edge of the second boss passes through the trigger triggers ignition. In the ignition control, the ignition advance angle amount (the angle between the F line corresponding to the ignition time in fig. 2 and the T line corresponding to the top dead center time) of the engine of the next rotation is mostly determined by collecting the motor rotation speed of the previous rotation, looking up a table (such as a curve table shown in fig. 3) and the like, and the ignition time of the engine of the next rotation is controlled according to the ignition advance angle amount. Considering that the probability that the crankshaft of the engine stops before the top dead center of the compression stroke is the largest when the engine is braked and stalled at a high speed or is stalled at an idle speed, the engine is to be reversed, and in order to avoid ignition after the ignition system identifies the trigger pulse signal of the rear edge of the boss when the engine is reversed, in this embodiment, the trigger pulse signal generated by the trigger when the magneto rotates is obtained, and the change condition of the front and rear rotation pulses of the trigger pulse signal is analyzed, so as to judge whether the double-boss magneto has the condition of sudden and large-amplitude speed reduction, if so, the double-boss magneto is about to be reversed, that is, the engine is about to be reversed, in order to avoid damage to the starting clutch caused by ignition of the igniter when the engine is reversed, the igniter is controlled to not ignite when the trigger signal of the rear edge of the boss is rotated, for example, the igniter can be directly controlled to stop working. By adopting the method for inhibiting the reverse rotation ignition of the engine, whether the engine has a reverse rotation trend or not can be judged, the igniter can be controlled not to ignite when the engine rotates reversely, and the damage of the starting clutch of the engine caused by the recoil is eliminated, so that the running stability of a vehicle is improved and the service life of the vehicle is prolonged.
In one embodiment, as shown in fig. 2 to 4, the step S40 of determining whether the dual-stage magneto is about to rotate reversely according to the trigger pulse signal generated by the trigger when each stage of the two adjacent front and back rotations passes through the trigger and the advance rotation speed threshold includes:
s41: acquiring first time according to a trigger pulse signal generated by a trigger when each boss in two adjacent front and back turns passes through the trigger, wherein the first time is the time from the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the front turn passes through the trigger to the starting time of a reverse pulse of the trigger pulse signal;
s42: obtaining the rotating speed of the front-rotating double-boss magneto according to the first time and the size parameters of the first boss;
s43: judging whether the double-lug-boss magneto is about to rotate reversely according to the rotating speed of the double-lug-boss magneto, a trigger pulse signal generated by a trigger when each lug boss in the adjacent front and back rotation passes through the trigger and a threshold value of the rotating speed of the advance angle;
wherein, the double boss magneto includes first boss.
The first boss is a boss arranged behind the motor in the rotation direction, namely a boss passing through the trigger in the same rotation. Since the ignition time of the igniter of the next revolution of the engine is adjusted according to the engine speed of the previous revolution, the rotation speed of the double-lug-boss magneto of the previous revolution is generally taken as the current rotation speed of the engine. As shown in fig. 2-5, when the first boss passes through the trigger, the front edge triggers a positive pulse, the rear edge triggers a reverse pulse, the first time T2 reflects the time it takes for the first boss to pass through the trigger coil, and the rotation speed of the engine motor can be calculated according to the length of the first boss and the first time T2 according to the relationship between the time distance and the speed. For different rotation speeds and different corresponding advance angle amounts, as shown in an igniter ignition curve of a certain vehicle shown in fig. 3, it can be found that when the rotation speed is low, the ignition advance angle may be a small value tending to 0, and at this time, the igniter may be considered to be not performing advance angle ignition, and when the engine rotation speed is higher than the advance angle rotation speed threshold, the ignition advance angle of the igniter increases with the increase of the rotation speed, and the ignition advance angle tends to a maximum value with the continuous increase of the rotation speed. Ignition of the igniter can be divided into non-advanced ignition and advanced ignition according to the magnitude of the rotating speed. The judgment time of whether the engine is left to rotate reversely is different when the engine runs at a low speed and when the engine runs at a high speed, so that the judgment time of whether the current igniter is in advance angle ignition or not in advance angle ignition in the next turn is judged according to the rotating speed and the advance angle rotating speed threshold value of the double-lug-boss magneto, and whether the engine is about to rotate reversely is judged according to the ignition advance angle of the igniter and the change condition of the trigger pulse signal generated by the trigger when each lug boss passes through the trigger in the front turn and the rear turn, so that enough time is left to control the igniter to not ignite in the next turn when the engine is judged to be about to rotate reversely, and the control reliability of the reverse non-ignition is improved. The coming time of the pulse signal at the back edge of the first boss refers to the starting time of an inverted pulse signal generated by the trigger when the first boss passes through the trigger.
In one embodiment, the step of determining whether the twin-lobe magneto is about to reverse according to the rotation speed of the twin-lobe magneto, a trigger pulse signal generated by the trigger when each lobe of two adjacent front and rear revolutions passes through the trigger, and a threshold of the advance rotation speed further includes:
if the rotating speed of the front-turn double-lug-plate magneto is lower than the rotating speed threshold of the advance angle, judging whether second time is greater than a time threshold, wherein the second time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when a first lug plate of a next turn passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
if the current value is larger than the preset value, the igniter is controlled not to ignite in the next revolution.
The time threshold may be a second time T2 'corresponding to the trigger pulse signal of the first boss when the crankshaft of the engine stops at different positions and starts to rotate reversely through an engine idling stop experiment, and a minimum value of the second time T2' is taken as the time threshold, and the time threshold is different according to different engine models. As shown in fig. 5, if the rotation speed of the two-lobe magneto of the previous rotation is lower than the advance angle rotation speed threshold (if the length of the first lobe is known, the determination relationship can be converted into whether the first time T2 of the previous rotation is greater than the first time corresponding to the advance angle rotation speed threshold), which indicates that the engine rotation speed is lower, the relative ratio of one rotation of the motor is longer, the igniter does not advance angle ignition, if the igniter can be temporarily controlled to not ignite along the pulse signal after the first lobe of the next rotation (time T1), a certain determination time and control execution time are required, since the rotation speed of the motor of the engine is not high, the change condition of the trigger pulse signal generated by the trigger when the first lobe passes through the trigger can be determined to determine whether the engine is about to reverse rotation, since the igniter temporarily ignites along the trigger pulse behind the first lobe, if the second time T2' of the next rotation is determined to be greater than the time threshold, the phenomenon that the first boss suddenly decelerates in the next rotation is explained, the engine is about to reverse (for example, in fig. 5, the engine reverses at the time t3, the single-phase clutch drags the starter motor to rotate, the end of the starter motor generates induced electromotive force (CH3 has negative voltage), the pulse signal of the back edge of the first boss does not come until the time t 4), at this time, the igniter is controlled not to ignite when the back edge of the first boss passes through the trigger (that is, the igniter is controlled not to output the ignition signal at the time t 4), and the starting clutch is prevented from being damaged due to the fact that the engine reversely ignites. If the first boss is a long boss, the ignition mode of the rear edge of the long boss can be adopted according to the ignition curve setting.
In one embodiment, as shown in fig. 6 and 7, the step of determining whether the dual-lobe magneto is about to rotate reversely according to the rotation speed of the dual-lobe magneto, the trigger pulse signal generated by the trigger when each lobe in two adjacent front and back rotations passes through the trigger, and the advance angle rotation speed threshold includes:
if the rotating speed of the previous rotation of the double-lug-plate magneto is higher than the advancing angle rotating speed threshold value, judging whether a fourth time is larger than a third time of k times, wherein the third time is a time T1 from the starting time of a forward pulse of a trigger pulse signal generated by a trigger to the ending time of an inverted pulse of the trigger pulse signal when the previous rotation of the double-lug-plate magneto passes through the trigger as shown in fig. 6, and the fourth time is a time T1' from the starting time of the forward pulse of the trigger pulse signal generated by the trigger to the ending time of the inverted pulse of the trigger pulse signal when the next rotation of the double-lug-plate magneto passes through the trigger as shown in fig. 6;
if the current value is larger than the preset value, controlling the igniter to not ignite in the next revolution;
wherein, the double-lug-boss magneto comprises a second lug boss, and k is a positive number larger than 1.
If the rotating speed of the previous double-lug-plate magneto is higher than the advance angle rotating speed threshold value (which can be 1800r/min in fig. 2), the advance angle ignition of the igniter is explained. The higher the speed is, the larger the ignition advance angle is, and the advance angle ignition is needed, so that the reverse non-ignition control cannot be executed temporarily in the pulse signal at the rear edge of the first boss, namely, in order to avoid the advance angle ignition when the engine rotates reversely, the change situation of the trigger pulse signal of the second boss passing through the trigger in the front and rear rotation is utilized to judge whether the engine is about to rotate reversely. If the fourth time T1' is judged to be larger than the third time T1 which is k times, the phenomenon that the speed of the second boss passing through the trigger is suddenly reduced compared with the rotating speed of the previous revolution is explained, the phenomenon can occur when the engine is braked and extinguished at high speed or is extinguished at idle speed, at the moment, the engine is judged to be about to rotate reversely, the igniter is controlled to not ignite at the ignition advance angle (TQ) of the next revolution, and the damage of the starting clutch caused by recoil is avoided.
In one embodiment, k is 2. According to the test, when k is 2, the engine reverse ignition suppression effect is good for the engines used in most motorcycles. At this time, if the motor rotating speed obtained according to the trigger pulse signal corresponding to the first boss of the previous rotation is higher than the advance rotating speed threshold, it is determined whether the fourth time T1 'is greater than the third time T1 which is 2 times, if T1' > 2 × T1, it is determined that the engine is just rotating reversely, and the igniter is not ignited when the pulse signal comes after the first boss of the next rotation is controlled.
In one embodiment, the double-boss magneto comprises a first boss and a second boss, the length of the first boss is larger than that of the second boss, and the double-boss magneto rotates along the first boss to the second boss. The first boss can be a short boss, the second boss can be a long boss, and the engine is ignited by adopting the rear edge of the first boss.
It should be understood that, although the steps in the flowcharts of fig. 1, 3, and 7 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 1, 3, and 7 may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternatingly with other steps or at least some of the sub-steps or stages of other steps.
An engine reverse ignition suppression device, as shown in fig. 8, includes:
the trigger pulse signal acquisition module 1 is used for acquiring a trigger pulse signal generated by a trigger when the double-lug-boss magnetor rotates;
the motor reverse rotation judging module 2 is used for judging whether the double-lug-boss magneto is about to reverse according to a trigger pulse signal generated by the trigger when each lug boss in the adjacent front and back rotation passes through the trigger;
and the reverse ignition suppression module 3 is used for controlling the next rotation of the igniter to be not ignited when the double-lug-boss magneto is judged to be about to reverse.
The definitions of the trigger pulse signals and the like are the same as those in the above embodiments, and are not described herein. The utility model provides a recoil ignition suppression device, through trigger pulse signal acquisition module 1 the produced trigger pulse signal of trigger when acquireing two boss magneto and rotating, and send this pulse trigger signal to motor reversal judgement module 2, then, motor reversal judgement module 2 is according to the produced trigger pulse signal of trigger when each boss passes through the trigger in adjacent two changes in the front and back, judge whether two boss magneto are about to reverse, when judging that two boss magneto is about to reverse, one turn after the control point firearm is not igniteed to reversal ignition suppression module 3.
In one embodiment, the motor reverse rotation determining module includes:
the first time acquisition unit is used for acquiring first time according to a trigger pulse signal generated by the trigger when each boss in two adjacent front and back revolutions passes through the trigger, wherein the first time is the time between the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the front revolution passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
the motor rotating speed obtaining unit is used for obtaining the rotating speed of the front-rotating double-lug-boss magneto according to the first time and the size parameter of the first lug boss;
and the judging and executing unit is used for judging whether the double-lug-boss magneto is about to rotate reversely or not according to the rotating speed of the double-lug-boss magneto, a trigger pulse signal generated by the trigger when each lug boss in the adjacent front and back rotation passes through the trigger and an advance angle rotating speed threshold.
The definitions of the first boss, the advance angle rotation speed threshold, and the like are the same as those in the above embodiment of the method, and are not described herein again. Specifically, a trigger pulse signal generated by a trigger when a double-boss magneto rotates is obtained through a trigger pulse signal obtaining module 1, the trigger pulse signal is sent to a judging execution unit, in addition, a first time is obtained according to the trigger pulse signal generated by the trigger when each boss in two adjacent front and back rotations passes through the trigger, the first time is the time from the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the previous rotation passes through the trigger to the starting time of a reverse pulse of the trigger pulse signal, and a motor rotating speed obtaining unit obtains the rotating speed of the front-rotation double-boss magneto according to the first time obtained by the first time obtaining unit and the size parameter of the first boss; the judgment execution unit judges whether the double-lug-boss magnetor is about to rotate reversely according to the rotating speed of the double-lug-boss magnetor, a trigger pulse signal generated by the trigger when each lug boss in two adjacent front and back revolutions passes through the trigger and an advance angle rotating speed threshold, and when the double-lug-boss magnetor is judged to rotate reversely, the reverse ignition suppression module 3 controls the next revolution of the igniter to be not ignited.
For specific limitations of the engine misfire suppressing means, reference may be made to the above limitations of the engine misfire suppressing method, which are not described in detail herein. The various modules in the engine reversal ignition suppression apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing data such as angular speed threshold values, time threshold values and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement an engine misfire suppression method. The computer device may be a vehicle-mounted controller or the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
A computer device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
s20: acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
s40: judging whether the double-lug-boss magneto is about to rotate reversely according to a trigger pulse signal generated by a trigger when each lug boss passes through the trigger in the adjacent front and back rotation;
s60: if the double-lug boss magnetor is judged to be about to rotate reversely, the subsequent rotation of the igniter is controlled to be not ignited.
The definitions of the terms in the computer device are the same as those in the above embodiments, and are not described herein. According to the computer equipment provided by the embodiment of the application, when a processor on the computer equipment works, whether the engine is about to rotate reversely can be judged by acquiring the trigger pulse signal of the double-lug-boss magneto, when the engine is judged to rotate reversely, one rotation behind the igniter is controlled to be not ignited, and the damage of the starting clutch of the engine caused by recoil is prevented. It should be noted that, when executing the computer program, the processor in the computer device provided in the embodiment of the present application may also execute other steps in the foregoing method embodiments, so as to achieve other beneficial effects in the foregoing method embodiments.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
s20: acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
s40: judging whether the double-lug-boss magneto is about to rotate reversely according to a trigger pulse signal generated by a trigger when each lug boss passes through the trigger in the adjacent front and back rotation;
s60: if the double-lug boss magnetor is judged to be about to rotate reversely, the subsequent rotation of the igniter is controlled to be not ignited.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus DRAM (RDRAM), and interface DRAM (DRDRAM).
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An engine reverse ignition suppression method characterized by comprising:
acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
acquiring first time according to a trigger pulse signal generated by a trigger when each boss in two adjacent front and back turns passes through the trigger, wherein the first time is the time between the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the previous turn passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
obtaining the rotating speed of the double-boss magneto of the previous revolution according to the first time and the size parameters of the first boss;
if the rotating speed of the double-boss magneto of the previous rotation is lower than the rotating speed threshold of the advance angle, judging whether second time is greater than a time threshold, wherein the second time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when the first boss of the next rotation passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
if the current value is larger than the preset value, controlling the igniter to not ignite in the next revolution;
wherein the double-boss magneto includes the first boss.
2. The engine misfire inhibition method of claim 1 wherein the dual-lobe magneto comprises a first lobe and a second lobe and wherein the first lobe has a length greater than a length of the second lobe, the dual-lobe magneto rotating in a direction from the first lobe toward the second lobe.
3. An engine reverse ignition suppression method characterized by comprising:
acquiring a trigger pulse signal generated by a trigger when a double-lug-boss magneto rotates;
acquiring first time according to a trigger pulse signal generated by a trigger when each boss in two adjacent front and back turns passes through the trigger, wherein the first time is the time between the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the previous turn passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
obtaining the rotating speed of the double-boss magneto of the previous revolution according to the first time and the size parameters of the first boss;
if the rotating speed of the double-lug-plate magneto of the previous rotation is higher than a threshold value of the rotating speed of the advance angle, judging whether a fourth time is a third time which is larger than k times, wherein the third time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when the second lug plate of the previous rotation passes through the trigger and the ending time of an inverted pulse of the trigger pulse signal, and the fourth time is the time between the starting time of the forward pulse of the trigger pulse signal generated by the trigger when the second lug plate of the next rotation passes through the trigger and the ending time of the inverted pulse of the trigger pulse signal;
if the current value is larger than the preset value, controlling the igniter to not ignite in the next revolution;
the double-boss magneto comprises a first boss and a second boss, and k is a positive number greater than 1.
4. The engine misfire inhibition method as recited in claim 3 wherein k is 2.
5. The engine misfire inhibition method of any of claims 3-4 wherein the double lobe magneto comprises a first lobe and a second lobe and wherein the first lobe has a length greater than a length of the second lobe, the double lobe magneto rotating in a direction from the first lobe to the second lobe.
6. An engine reverse ignition suppression device characterized by comprising:
the trigger pulse signal acquisition module is used for acquiring a trigger pulse signal generated by the trigger when the double-lug-boss magnetor rotates;
the motor reversal judging module is used for acquiring first time according to a trigger pulse signal generated by the trigger when each boss in two adjacent front and back revolutions passes through the trigger, wherein the first time is the time between the starting time of a forward pulse of the trigger pulse signal generated by the trigger when the first boss in the previous revolution passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
obtaining the rotating speed of the double-boss magneto of the previous revolution according to the first time and the size parameters of the first boss;
if the rotating speed of the double-boss magneto of the previous rotation is lower than the rotating speed threshold of the advance angle, judging whether second time is greater than a time threshold, wherein the second time is the time between the starting time of a forward pulse of a trigger pulse signal generated by a trigger when the first boss of the next rotation passes through the trigger and the starting time of a reverse pulse of the trigger pulse signal;
and the reverse ignition suppression module is used for controlling the igniter to not ignite one turn later when the second time is judged to be greater than the time threshold.
7. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the engine reversal ignition suppression method according to any one of claims 1 to 5 are implemented when the processor executes the program.
8. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, carries out the steps of the engine misfire suppression method as recited in any one of claims 1 to 5.
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| CN112762141A (en) * | 2020-12-31 | 2021-05-07 | 浙江锋龙电气股份有限公司 | Multi-gap ignition device |
| CN114320621B (en) * | 2021-12-21 | 2023-03-03 | 联合汽车电子有限公司 | Engine control method, engine control device, storage medium and equipment |
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| JP3375679B2 (en) * | 1993-05-24 | 2003-02-10 | 本田技研工業株式会社 | Reverse rotation prevention device for internal combustion engine |
| JP3142436B2 (en) * | 1994-02-18 | 2001-03-07 | 三菱電機株式会社 | Internal combustion engine ignition control device |
| JP4031428B2 (en) * | 2003-12-24 | 2008-01-09 | 三菱電機株式会社 | Ignition control device for internal combustion engine |
| CN101469656B (en) * | 2004-12-27 | 2011-10-19 | 雅马哈发动机株式会社 | Ignition control device for engine and vehicle equipped with it |
| JP2010059959A (en) * | 2008-08-08 | 2010-03-18 | Yamaha Motor Co Ltd | Ignition control device of engine, internal combustion engine, and motorcycle including the same |
| CN101440770A (en) * | 2008-12-24 | 2009-05-27 | 华夏龙晖（北京）汽车电子科技有限公司 | Engine reverse turning-proof method and system |
| JP5319412B2 (en) * | 2009-06-17 | 2013-10-16 | 本田技研工業株式会社 | Anti-reverse device for motorcycle engine |
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