CN115701531A - Worm and gear monitoring method, controller and vehicle - Google Patents
Worm and gear monitoring method, controller and vehicle Download PDFInfo
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Abstract
The invention provides a monitoring method of a worm gear, a controller and a vehicle, and belongs to the technical field of automobile control. The method is applied to a controller in a vehicle monitoring system, and the system further comprises the following steps: the worm gear and the sensor are arranged on the worm gear; the method comprises the following steps: acquiring current operation parameters of a worm gear through a sensor; comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result; when the comparison result meets the abnormal requirement, outputting alarm information for prompting the abnormal operation of the worm and gear; when the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm; when the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear. The current operating parameter of contrast and standard operating parameter can discern the unusual jamming of worm gear and wear in advance to output alarm information, the suggestion user overhauls in advance.
Description
Technical Field
The invention belongs to the technical field of automobile control, and particularly relates to a worm and gear monitoring method, a controller and a vehicle.
Background
Currently, one of the failure modes with the highest failure rate for a Column Electric Power Steering (Column Electric Steering, hereinafter referred to as C-EPS) is abnormal operation of a worm gear.
In the prior art, for a fault that a worm gear runs abnormally, hardware is often added into a tubular column type electric power steering system or existing hardware in the tubular column type electric power steering system is improved, so that the fault that the worm gear runs abnormally is avoided.
Therefore, the fault that the worm and gear abnormally operate cannot be completely avoided, and a user can only overhaul the vehicle after the fault that the worm and gear abnormally operate occurs. And the fault that the worm gear and the worm are abnormal in operation can not be known, so that the fault that the worm gear and the worm are abnormal in operation can be maintained in advance, the quality of Noise, vibration, harshness (NVH for short) and the like of the whole vehicle can be prevented from being reduced, the fluctuation of the steering force of the vehicle can be caused, and the normal driving of a user can be influenced finally.
Disclosure of Invention
In view of this, the invention provides a monitoring method of a worm gear, a controller and a vehicle, so as to solve the technical problem that the fault that the worm gear is about to have abnormal operation cannot be known in the prior art, so as to perform maintenance in advance.
In one aspect, a monitoring method of a worm gear is provided, and is applied to a controller in a vehicle monitoring system, where the vehicle monitoring system further includes: the sensor is arranged on the worm gear; the method comprises the following steps:
acquiring the current operating parameters of the worm gear through the sensor;
comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result;
when the comparison result meets the abnormal requirement, outputting alarm information for prompting the abnormal operation of the worm gear; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
Optionally, in the case that the current operation parameters include a current acceleration, a current torque value, and a current angle value, the standard operation parameters include: the standard acceleration, the standard torque value and the standard angle value, and the comparison result comprises: an acceleration comparison result, a torque comparison result and an angle comparison result; comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result, wherein the comparison result comprises the following steps:
comparing the current acceleration with the standard acceleration to obtain an acceleration comparison result, comparing the current torque value with the standard torque value to obtain a torque comparison result, and comparing the current angle value with the standard angle value to obtain an angle comparison result;
the exception request comprises an exception stuck request; when the comparison result accords with abnormal requirements, the output is used for prompting the abnormal alarm information of the worm gear operation, and the alarm information comprises the following steps:
and when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement, outputting alarm information for prompting the abnormal clamping stagnation of the worm and gear.
Optionally, before outputting alarm information for prompting the abnormal clamping stagnation of the worm and gear when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirement, the method further includes:
and when the acceleration comparison result is that the current acceleration is greater than the standard acceleration, the torque comparison result is that the current torque value is greater than the standard torque value, and the angle comparison result is that the current angle value is greater than the standard angle value, determining that the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirement.
Optionally, in case the current operating parameter comprises a current acceleration, a current torque value and a current angle value, the sensor comprises: the acceleration sensor is used for collecting the current acceleration, and the torque and angle sensor is used for collecting the current torque value and the current angle value; the acceleration sensor is arranged on a speed reducing mechanism shell at the meshing position of the worm gear and the worm, and the torque and angle sensor is arranged on a central shaft of the worm gear and the worm;
the output is used for the suggestion the unusual alarm information of worm gear operation includes:
and under the condition that the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm, outputting alarm information for prompting the abnormity of the speed reducing mechanism and the central shaft.
Optionally, in a case that the current operation parameter includes a current displacement amount, the standard operation parameter includes: the standard displacement change speed, and the comparison result comprises: comparing the displacement change speed; comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result, wherein the comparison result comprises the following steps:
taking the ratio of the current displacement acquired after the preset time length to the preset time length as the current displacement change speed of the worm gear;
comparing the current displacement change speed with the standard displacement change speed to obtain a displacement change speed comparison result;
the abnormal requirement comprises an abnormal abrasion requirement; when the comparison result accords with the abnormal requirement, the output is used for prompting the alarm information that the worm gear and worm operates abnormally includes:
and when the displacement change speed comparison result meets the abnormal abrasion requirement, outputting alarm information for prompting the abnormal abrasion of the worm and gear.
Optionally, before outputting alarm information for prompting the abnormal wear of the worm gear when the displacement change speed comparison result meets the abnormal wear requirement, the method further includes:
and when the comparison result of the displacement change speed is that the current displacement change speed is greater than the standard displacement change speed, determining that the comparison result of the displacement change speed meets the abnormal abrasion requirement.
Optionally, in a case where the current operation parameter includes a current displacement amount, the sensor includes: the displacement sensor is used for acquiring the current displacement and is arranged on a clearance compensation mechanism at the swinging end of the worm gear and the worm;
the output is used for the suggestion the unusual alarm information of worm gear operation includes:
and outputting alarm information for prompting the abnormity of the clearance compensation mechanism under the condition that the abnormal operation of the worm gear is abnormal abrasion of the worm gear.
In another aspect, a controller is provided, which is applied to a vehicle monitoring system, and the vehicle monitoring system further includes: the sensor is arranged on the worm gear; the controller includes:
the acquisition module is used for acquiring the current operating parameters of the worm gear through the sensor;
the comparison module is used for comparing the current operation parameters with the standard operation parameters of the worm gear to obtain comparison results;
the alarm module is used for outputting alarm information for prompting the abnormal operation of the worm and gear when the comparison result meets the abnormal requirement; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
Optionally, in the case that the current operation parameters include a current acceleration, a current torque value, and a current angle value, the standard operation parameters include: the standard acceleration, the standard torque value and the standard angle value, and the comparison result comprises: an acceleration comparison result, a torque comparison result and an angle comparison result;
the comparison module is further configured to:
comparing the current acceleration with the standard acceleration to obtain an acceleration comparison result, comparing the current torque value with the standard torque value to obtain a torque comparison result, and comparing the current angle value with the standard angle value to obtain an angle comparison result;
the alarm module is further configured to:
and when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement, outputting alarm information for prompting the abnormal clamping stagnation of the worm and gear.
In still another aspect, a vehicle is provided, and the vehicle comprises the monitoring method for the worm gear.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
according to the monitoring method of the worm gear and the worm, the controller and the vehicle provided by the embodiment of the invention, the sensor is arranged on the worm gear and the worm, the current running parameters of the vehicle are detected in the running process of the vehicle, and the comparison result of the measured current acceleration, the current torque value, the current angle value and the current displacement with the standard running parameters is used for judging whether the worm gear and the worm are in abnormal clamping stagnation of the worm gear and the worm or abnormal abrasion of the worm gear and the worm, so that the alarm information for prompting the clamping stagnation of the worm gear and the worm or the abnormal abrasion of the worm gear and the worm is output to prompt a user to overhaul the worm gear and the worm in time.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a flow chart illustrating steps of a method for monitoring a worm gear according to an embodiment of the present invention;
FIG. 2 is a block diagram of a vehicle monitoring system according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating steps of another worm gear monitoring method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the location of sensors in a vehicle monitoring system according to an embodiment of the present invention;
FIG. 5 is a flow chart illustrating steps of another worm and gear monitoring method according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an operation process of a displacement sensor in a vehicle monitoring system according to an embodiment of the present invention;
fig. 7 is a block diagram of a controller according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
At present, the abnormal operation faults of the worm and gear mainly comprise: abnormal noise and the abnormal jamming of worm gear that worm gear abnormal wear arouses, this type of trouble not only can reduce the NVH quality of whole car, and can arouse the steering force fluctuation of vehicle, influences the normal driving of user, forms the potential safety hazard. The main factors causing the abnormal operation of the worm gear and the worm are the excessive abrasion of the worm gear and the worm, the abnormal deformation of the tooth profile, the poor lubrication of the worm gear and the worm, the interference of foreign matters or impurities and the like. In the daily use process, the C-EPS system lacks the monitoring of the running state of the worm gear and the worm, the faults can not be identified in advance, and fault points can not be locked in time after the faults occur. Is not beneficial to the prevention and the troubleshooting of the faults and is easy to cause complaints of users. Therefore, the invention provides a worm and gear monitoring method, a controller and a vehicle, which are used for monitoring and judging indexes such as a wear state, a running stability degree and the like when a worm and gear runs, early warning and overhauling are carried out in advance when abnormity occurs, and a fault mode is locked in time, so that complaints of users are reduced.
For example, fig. 1 is a flowchart illustrating steps of a monitoring method for a worm gear according to an embodiment of the present invention. The method is applied to a controller in a vehicle monitoring system, and the vehicle monitoring system can further comprise: the sensor comprises a worm gear and a sensor arranged on the worm gear;
fig. 2 is a block diagram of a vehicle monitoring system according to an embodiment of the present invention, where the vehicle monitoring system 200 may include: a worm gear 201, a sensor 202 arranged on the worm gear 201, and a controller 203.
Referring to fig. 2, the method is applied to a controller 203 in a vehicle monitoring system 200; referring to fig. 1, the monitoring method may include:
and 101, acquiring the current operation parameters of the worm gear through the sensor.
The current operation parameters of the worm and gear can be acquired through a sensor arranged on the worm and gear, and can also be acquired through other equipment capable of detecting the operation parameters of the worm and gear as long as the operation parameters of the worm and gear can be obtained, and the embodiment of the application does not limit the operation parameters.
And 102, comparing the current operation parameters with the standard operation parameters of the worm and gear to obtain a comparison result.
The current operation parameter is various operation index parameters of the turbine worm in the operation process at the current time, and may include one or more of a current acceleration, a current torque value, a current angle value, and a current displacement, and may also include other current operation parameters calculated by the current acceleration, the current torque value, the current angle value, or the current displacement, which is not limited in the embodiment of the present application.
Correspondingly, the standard operating parameter is used as an index parameter of a reference standard of the current operating parameter, and may also include one or more of a standard acceleration, a standard torque value, a standard angle value and a standard displacement, and may also include a standard operating parameter corresponding to another current operating parameter calculated by the current acceleration, the current torque value, the current angle value or the current displacement; the standard operating parameters such as the standard acceleration, the standard torque value, the standard angle value, the standard displacement and the like can be set by a user based on actual requirements, and can also be default numerical values of the system, which is not limited in the embodiment of the application.
103, outputting alarm information for prompting the abnormal operation of the worm and gear when the comparison result meets the abnormal requirement; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear is abnormal clamping stagnation of the worm gear; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
Wherein the abnormal requirement may comprise one or more of an abnormal seizure requirement and an abnormal wear requirement; the abnormal clamping stagnation requirement is used for judging whether the current operation parameters of the worm gear are matched with the standard operation parameters of the abnormal clamping stagnation of the worm gear; the abnormal abrasion requirement is used for judging whether the current operation parameters of the worm gear are matched with the standard operation parameters of the abnormal abrasion time of the worm gear, and the method is not limited in the embodiment of the application.
In the embodiment of the invention, the current operation parameters of the worm gear can be acquired through a sensor arranged on the worm gear and the current operation parameters are sent to a controller; after receiving the current operation parameters, the controller compares the current operation parameters with the standard operation parameters of the worm and gear to obtain comparison results; finally, the controller judges whether the comparison result meets the abnormal requirement, determines that the worm gear and the worm abnormally operate when the comparison result meets the abnormal requirement, and outputs alarm information for prompting the abnormal operation of the worm gear and the worm; and when the comparison result does not meet the abnormal requirement, determining that the worm and gear normally operates.
For example, as shown in fig. 2, a sensor 202 disposed on the worm gear 201 may be used to acquire current operating parameters of the worm gear 201 and send the current operating parameters to a controller 203; after receiving the current operating parameter, the controller 203 compares the current operating parameter with a standard operating parameter of the worm gear to obtain a comparison result; finally, the controller 203 judges whether the comparison result meets the abnormal requirement, determines that the worm and gear 201 operates abnormally when the comparison result meets the abnormal requirement, and outputs alarm information for prompting the abnormal operation of the worm and gear 201; and when the comparison result does not meet the abnormal requirement, determining that the worm and gear 201 operates normally.
According to the monitoring method for the worm gear, the sensor is arranged on the worm gear, the current running parameter of the vehicle is detected in the running process of the vehicle, the comparison result of the detected current acceleration, current torque value, current angle value and current displacement with the standard running parameter is used for judging whether the worm gear is in abnormal clamping stagnation of the worm gear or abnormal abrasion of the worm gear, and therefore alarm information used for prompting the clamping stagnation of the worm gear or the abnormal abrasion of the worm gear is output, and a user is prompted to overhaul the worm gear in time.
Optionally, as shown in fig. 2, the vehicle monitoring system 200 may further include an alarm device 204, and the alarm device 204 may include: at least one of a meter and a sound; the output is used for indicateing the abnormal operation alarm information of worm gear can include:
the alarm information that is used for the suggestion worm gear abnormal operation is shown on the screen of instrument, and/or passes through the sound is reported and is used for the suggestion worm gear abnormal operation's alarm information.
The abnormal operation of the worm gear may include one or more of abnormal clamping of the worm gear and abnormal abrasion of the worm gear, which is not limited in the embodiments of the present application.
In the embodiment of the invention, under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, when the controller judges that the comparison result meets the abnormal requirement, the controller can send an alarm signal to an alarm device; when the alarm device receives the alarm signal, alarm information used for prompting the abnormal clamping stagnation of the worm gear is displayed on an instrument screen in the alarm device, and/or the alarm information used for prompting the abnormal clamping stagnation of the worm gear is broadcasted through a sound box in the alarm device. When the current operation parameter comprises the current displacement and the controller judges that the comparison result meets the abnormal requirement, the controller can send an alarm signal to an alarm device; when the alarm device receives the alarm signal, alarm information used for prompting the abnormal abrasion of the worm gear is displayed on an instrument screen in the alarm device, and/or the alarm information used for prompting the abnormal abrasion of the worm gear is broadcasted through a sound in the alarm device.
For example, under the condition that the sensor collects the current operation parameters of the worm gear and the worm, including the current acceleration, the current torque value and the current angle value, the controller respectively compares the current acceleration with the standard acceleration, the current torque value with the standard torque value and the current angle value with the standard torque value, and when the controller judges that the obtained three comparison results simultaneously meet abnormal requirements, the controller can simultaneously send alarm signals to an instrument and a sound; when the instrument receives the alarm signal, displaying alarm information for prompting the abnormal clamping stagnation of the worm and gear on a screen of the instrument; when the sound equipment receives the alarm signal, the alarm information used for prompting the abnormal clamping stagnation of the worm gear and the worm is broadcasted through the sound equipment.
According to the monitoring method of the worm gear provided by the embodiment of the invention, when the controller determines that the comparison result of the current operation parameter and the standard operation parameter meets the abnormal requirement according to the current operation parameter and the standard operation parameter of the worm gear, the controller can know that the worm gear has an abnormal operation fault, and at the moment, the controller can send alarm information to at least one alarm device in an instrument and a sound box so as to prompt a user to overhaul the worm gear in advance.
Fig. 3 is a flowchart illustrating steps of another monitoring method for a worm gear according to an embodiment of the present invention. The method is applied to a controller in a vehicle monitoring system, and the vehicle monitoring system can further comprise: the sensor is arranged on the worm gear;
referring to fig. 3, in the case where the current operation parameters include a current acceleration, a current torque value, and a current angle value, the standard operation parameters may include: the comparison result may include: an acceleration comparison result, a torque comparison result and an angle comparison result; the exception request comprises an exception stuck request; the monitoring method may include:
301, acquiring the current operation parameters of the worm gear through the sensor.
Step 301 can refer to the detailed description of step 101, which is not described herein again.
Step 301 may include:
and step 3011, collecting the current acceleration of the worm gear through an acceleration sensor.
In this step, the current acceleration of the worm gear can be acquired by an acceleration sensor arranged on the worm gear.
And 3012, acquiring a current torque value and a current angle value of the worm gear through the torque and angle sensor.
In the step, the current torque value and the current angle value of the worm gear can be acquired through a torque and angle sensor arranged on the worm gear.
The standard acceleration, the standard torque value, and the standard angle value may be set by a user based on actual adjustment experience, or may be default values of the system, which is not limited in the embodiment of the present application.
In this step, the current acceleration is compared with the standard acceleration, so as to obtain three acceleration comparison results: the current acceleration is greater than the standard acceleration, the current acceleration is equal to the standard acceleration, and the current acceleration is less than the standard acceleration; and comparing the current torque value with the standard torque value to obtain three torque comparison results: the current torque value is greater than the standard torque value, the current torque value is equal to the standard torque value, and the current torque value is less than the standard torque value; comparing the current angle value with the standard angle value to obtain comparison results of three angles: the current angle value is greater than the standard angle value, the current angle value is equal to the standard angle value, and the current angle value is less than the standard angle value.
For example, as shown in fig. 2 and fig. 4, the current acceleration Sa of the worm gear is collected by the acceleration sensor 2021, and the current torque value Na and the current angle value Aa of the worm gear are collected by the torque and angle sensor 2022; comparing the current acceleration Sa with the standard acceleration S to obtain an acceleration comparison result, comparing the current torque value Na with the standard torque value N to obtain a torque comparison result, and comparing the current angle value Aa with the standard angle value A to obtain an angle comparison result.
In the embodiment of the application, when current operating parameter includes current acceleration, current torque value and current angle value, gather through the sensor current operating parameters such as current acceleration, current torque value and current angle value of worm gear can make the controller can compare current acceleration and standard acceleration, current torque value and standard torque value and current angle value and standard angle value respectively to obtain acceleration comparison result, moment of torsion comparison result and angle comparison result, whether be used for judging acceleration comparison result, moment of torsion comparison result and angle comparison result and accord with unusual jamming requirement simultaneously, with the unusual jamming's of worm gear trouble of discernment in advance, thereby output is used for the suggestion the unusual jamming's of worm gear alarm information overhauls in advance with the suggestion user to the worm gear.
Step 303, when the acceleration comparison result indicates that the current acceleration is greater than the standard acceleration, the torque comparison result indicates that the current torque value is greater than the standard torque value, and the angle comparison result indicates that the current angle value is greater than the standard angle value, determining that the acceleration comparison result, the torque comparison result, and the angle comparison result simultaneously meet an abnormal clamping stagnation requirement.
In this step, when the current acceleration in the three acceleration comparison results is greater than the standard acceleration, the current torque value in the three torque comparison results is greater than the standard torque value, and the current angle value in the three angle comparison results is greater than the standard angle value, it is determined that the acceleration comparison result, the torque comparison result, and the angle comparison result simultaneously meet an abnormal jamming requirement.
For example, the current acceleration is Sa, the standard acceleration is S, the current torque value is Na, the standard torque value is N, the current angle value is Aa, and the standard angle value is a; and when the acceleration comparison result is Sa > S, the torque comparison result is Na > N and the angle comparison result is Aa > A, determining that the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the requirement of abnormal clamping stagnation.
In the embodiment of the application, when current operating parameter includes current acceleration, current torque value and current angle value, the controller compares current acceleration and standard acceleration, current torque value and standard torque value and current angle value and standard angle value respectively, judges acceleration comparison result, moment of torsion comparison result and the angle comparison result that obtains again whether accord with current acceleration is greater than standard acceleration just current torque value is greater than standard torque value just current angle value is greater than the unusual jamming requirement of standard angle value to discern the unusual jamming's of worm gear trouble in advance trouble, thereby output is used for the suggestion the unusual jamming's of worm gear alarm information is overhauld in advance to the suggestion user carries out overhaul to the worm gear.
And step 304, outputting alarm information for prompting the abnormal clamping stagnation of the worm and the worm gear when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement.
In the step, when the acceleration comparison result, the torque comparison result and the angle comparison result are determined to simultaneously meet the abnormal clamping stagnation requirement according to the current acceleration, the standard acceleration, the current torque value, the standard torque value, the current angle value and the standard angle value, alarm information for prompting the abnormal clamping stagnation of the worm and gear is output.
For example, according to the current acceleration Sa, the standard acceleration S, the current torque value Na, the standard torque value N, the current angle value Aa and the standard angle value a, it is determined that the acceleration comparison result is Sa > S, the torque comparison result is Na > N and the angle comparison result is Aa > a, that is, the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the requirement of abnormal clamping stagnation, and at this time, the controller outputs alarm information for prompting the abnormal clamping stagnation of the worm and gear.
According to the monitoring method of the worm gear provided by the embodiment of the invention, under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the current operation parameters such as the current acceleration, the current torque value and the current angle value of the worm gear can be acquired in real time through the sensor arranged on the worm gear of the vehicle, and the current operation state of the worm gear can be obtained; the controller respectively compares the current acceleration with the standard acceleration, the current torque value with the standard torque value and the current angle value with the standard angle value, judges whether the obtained acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the requirement of abnormal clamping stagnation, can identify the fault of the abnormal clamping stagnation of the worm gear in advance, and therefore outputs alarm information for prompting the abnormal clamping stagnation of the worm gear so as to prompt a user to overhaul the worm gear in advance.
Alternatively, in the case where the current operating parameters include a current acceleration, a current torque value, and a current angle value, as shown in fig. 2, the sensor 202 includes: an acceleration sensor 2021 for acquiring the current acceleration, and a torque and angle sensor 2022 for acquiring the current torque value and the current angle value; the acceleration sensor 2021 is arranged on a speed reducing mechanism shell at the meshing position of the worm gear, and the torque and angle sensor 2022 is arranged on the central shaft of the worm gear;
as shown in fig. 2, the worm wheel and worm 201 in the vehicle monitoring system may include a worm wheel 2011 and a worm 2012, fig. 4 is a schematic position diagram of a sensor in the vehicle monitoring system according to an embodiment of the present invention, as shown in fig. 4, the acceleration sensor 2021 may be disposed on the speed reduction mechanism housing 20121 at the meshing position of the worm 2012, and the torque and angle sensor 2022 may be disposed on a central axis 20111 of the worm wheel 2011.
The output is used for the suggestion the unusual alarm information of worm gear operation includes:
and under the condition that the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm, outputting alarm information for prompting the abnormity of the speed reducing mechanism and the central shaft.
The acceleration sensor can be arranged on a speed reducing mechanism shell near the meshing position of the worm and gear and is used for monitoring a vibration acceleration signal generated by the worm and gear due to abnormal clamping stagnation in real time during the running of the vehicle to obtain the current acceleration; the torque and angle sensor can also be a torque and angle sensor carried by the C-EPS, and can also be arranged on a central shaft of a worm wheel and used for acquiring torque signal fluctuation quantity and angle signal fluctuation quantity in the operation process of the steering column so as to obtain a current torque value and a current angle value.
In the step, firstly, during the running of the vehicle, the current acceleration of the worm gear is acquired in real time through an acceleration sensor on a shell of the speed reducing mechanism, and the current torque value and the current angle value of the worm gear are acquired in real time through a torque and angle sensor on a central shaft; then, determining whether the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirement according to the current acceleration, the current torque value and the current angle value, and the standard acceleration, the standard torque value and the standard angle value; and when the requirements are met, determining that the speed reducing mechanism and the central shaft of the worm gear and the worm are abnormal, and outputting alarm information for prompting the abnormality of the speed reducing mechanism and the central shaft.
For example, referring to fig. 2 and 4, the current acceleration Sa is acquired by the acceleration sensor 2021 on the reduction mechanism housing 20121, and the current torque value Na and the current angle value Aa are acquired by the torque and angle sensor 2022 on the center shaft 20111; then, according to the current acceleration Sa, the current torque value Na, the current angle value Aa, the standard acceleration S, the standard torque value N, and the standard angle value a, it is determined that the acceleration comparison result is Sa > S, the torque comparison result is Na > N, and the angle comparison result is Aa > a, that is, the three comparison results simultaneously meet the requirement of abnormal clamping stagnation, it is determined that the reduction mechanism 20121 and the central shaft 20111 of the worm gear are abnormal, and an alarm message for prompting the abnormality of the reduction mechanism 20121 and the central shaft 20111 is output.
According to the monitoring method of the worm and gear, when the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the current acceleration is acquired in real time by using the acceleration sensor arranged on the speed reducing mechanism shell at the meshing position of the worm and gear, and the current torque value and the current angle value are acquired in real time by using the torque and angle sensor arranged on the central shaft of the worm and gear, so that when the controller respectively compares the current acceleration with the standard acceleration, the current torque value with the standard torque value and the current angle value with the standard angle value, and then judges whether the obtained acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirements, the controller can identify whether the speed reducing mechanism and the central shaft of the worm and gear are abnormal in advance so as to prompt a user to overhaul the speed reducing mechanism and the central shaft of the worm and gear in advance.
Fig. 5 is a flowchart illustrating steps of another monitoring method for a worm gear according to an embodiment of the present invention. The method is applied to a controller in a vehicle monitoring system, and the vehicle monitoring system can further comprise: the sensor comprises a worm gear and a sensor arranged on the worm gear;
referring to fig. 5, in the case that the current operation parameter includes the current displacement amount, the standard operation parameter may include: the standard displacement change speed, and the alignment result may include: comparing the displacement change speed; the abnormal requirement comprises an abnormal abrasion requirement; the monitoring method may include:
Step 401 can refer to the detailed description of step 101, which is not described herein again.
Step 401 may include:
and step 4011, acquiring the current displacement of the worm gear through a displacement sensor.
In this step, the current displacement of the worm gear can be acquired through a displacement sensor arranged on the worm gear.
The preset duration may be set by the user based on actual adjustment experience, or may be a default numerical value of the system, which is not limited in the embodiment of the present application.
Fig. 6 is a schematic diagram of an operation process of a displacement sensor in a vehicle monitoring system according to an embodiment of the present invention. Referring to fig. 2, 5 and 6, the worm 2012 is simplified into a straight line, the working process of the displacement sensor 2023 is shown in fig. 6, p is the applied force of the clearance compensation mechanism 20122, a is the center point of the oscillating bearing of the worm 2012, B is the initial meshing position of the worm wheel 2011 and the worm 2012, C is the initial position of the oscillating end of the worm 2012, D is the meshing position of the worn worm wheel 2011 and the worm 2012, E is the oscillating end position of the worn worm 2012, and L is the current displacement amount acquired by the displacement sensor 2023.
In the step, in a preset duration, when a force P is applied by the clearance compensation mechanism, the meshing position of the worm wheel and the worm is changed from B to D, and the swinging end position of the worm is changed from C to E, so that the current displacement L of the worm wheel and the worm after the preset duration can be acquired through the displacement sensor; and then the controller takes the ratio of the current displacement collected after the preset time length to the preset time length as the current displacement change speed of the worm and gear.
For example, when the parts leave a factory, the controller records the initial value of the displacement sensor, the speed of the vehicle is 50Km/h, the speed of the vehicle can be 50 < 13214f every 50 < lambda > after the vehicle runs, and the numerical value of the displacement sensor is recorded once, namely the preset time T can be 1h; referring to fig. 2, 5 and 6, in a preset time period 1h, when a force P is applied by the clearance compensation mechanism 20122, an engagement position of the worm wheel 2011 and the worm 2012 is changed from B to D, and a swing end position of the worm 2012 is changed from C to E, so that a current displacement amount acquired by the displacement sensor 2023 after the preset time period 1h is L; and then the controller takes the ratio of L/1h as the current displacement change speed of the worm gear.
In the embodiment of the application, under the condition that the current operation parameters include the current displacement, the controller collects the current displacement once through the sensor every preset time length, so that the current displacement change speed of the worm gear can be determined according to the current displacement and the preset time length, and the current displacement change state of the worm gear can be known.
And step 403, comparing the current displacement change speed with the standard displacement change speed to obtain a displacement change speed comparison result.
The standard displacement change speed may be set by a user based on actual adjustment experience, or may be a default numerical value of the system, which is not limited in the embodiment of the present application.
In this step, after determining the current displacement change speed of the worm gear, comparing the current displacement change speed with the standard displacement change speed to obtain three displacement change speed comparison results: the current displacement change speed is greater than the standard displacement change speed, the current displacement change speed is equal to the standard displacement change speed, and the current displacement change speed is less than the standard displacement change speed.
For example, according to a ratio L/T of the current displacement amount to the preset duration, the current displacement change speed of the worm gear is determined to be Vb, and the current displacement change speed Vb is compared with the standard displacement change speed V to obtain a displacement change speed comparison result.
In the embodiment of the application, after determining the current displacement change speed of the worm gear, the controller can compare the current displacement change speed with the standard displacement change speed, so that a displacement change speed comparison result is obtained, whether the displacement change speed comparison result meets the requirement of abnormal abrasion is judged, the fault of the abnormal abrasion of the worm gear is identified in advance, and therefore the alarm information for prompting the abnormal abrasion of the worm gear is output, and a user is prompted to overhaul the worm gear in advance.
In this step, when the current displacement change speed in the three displacement change speed comparison results is greater than the standard displacement change speed, it is determined that the displacement change speed comparison result meets the abnormal wear requirement.
For example, the current displacement change speed is Vb, and the standard displacement change speed is V; and when the comparison result of the displacement change speed is Vb > V, determining that the comparison result of the displacement change speed meets the requirement of abnormal abrasion.
In the embodiment of the application, the controller compares the current displacement change speed with the standard displacement change speed, and judges whether the obtained displacement change speed comparison result meets the abnormal abrasion requirement that the current displacement change speed is greater than the standard displacement change speed so as to identify the abnormal abrasion fault of the worm gear in advance, thereby outputting the alarm information for prompting the abnormal abrasion of the worm gear and prompting a user to overhaul the worm gear in advance.
And 405, outputting alarm information for prompting the abnormal abrasion of the worm and gear when the displacement change speed comparison result meets the abnormal abrasion requirement.
In this step, when it is determined that the comparison result of the displacement change speed meets the abnormal wear requirement according to the current displacement change speed and the standard displacement change speed, alarm information for prompting the abnormal wear of the worm and gear is output.
For example, according to the current displacement change speed Vb and the standard displacement change speed V; and determining that the comparison result of the displacement change speed is Vb > V, namely the comparison result of the displacement change speed meets the requirement of abnormal abrasion, and outputting alarm information for prompting the abnormal abrasion of the worm and gear by the controller at the moment.
According to the monitoring method of the worm gear provided by the embodiment of the invention, when the current operation parameter comprises the current displacement, the controller acquires the current displacement once through the sensor every preset time, so that the controller can determine the current displacement change speed of the worm gear according to the current displacement and the preset time, and the current displacement change state of the worm gear is obtained; the controller compares the current displacement change speed with the standard displacement change speed of the worm gear, judges whether the obtained displacement change speed comparison result meets the requirement of abnormal abrasion, and can identify the fault of the abnormal abrasion of the worm gear in advance, thereby outputting alarm information for prompting the abnormal abrasion of the worm gear and prompting a user to overhaul the worm gear in advance.
Alternatively, in the case that the current operation parameter includes a current displacement amount, as shown in fig. 2, the sensor 202 includes: a displacement sensor 2023 for acquiring the current displacement, wherein the displacement sensor is arranged on a clearance compensation mechanism at the swinging end of the worm gear;
as shown in fig. 2, the worm gear 201 in the vehicle monitoring system may include a worm wheel 2011 and a worm 2012, and as shown in fig. 4, the displacement sensor 2023 is disposed on the clearance compensation mechanism 20122 at the swing end of the worm 2012.
The output is used for the suggestion the unusual alarm information of worm gear operation includes:
and outputting alarm information for prompting the abnormity of the clearance compensation mechanism under the condition that the abnormal operation of the worm gear is abnormal abrasion of the worm gear.
As shown in fig. 2 and 4, the displacement sensor 2023 at the swing end of the worm 2012 can be integrated on the clearance compensation mechanism 20122 at the swing end of the worm 2012; the method is used for monitoring the current displacement of the swinging end of the worm 2012 after the speed reducing mechanism 20121 operates for the preset time length, and the current displacement change speed can be calculated according to the current displacement and the preset time length, so that the wear loss of the worm and gear can be obtained.
In the step, firstly, the current displacement of the worm gear and the worm after preset duration is acquired through a displacement sensor integrated on a clearance compensation mechanism; then, taking the ratio of the current displacement to a preset duration as the current displacement change speed; then, according to the current displacement change speed and the standard displacement change speed, determining whether the displacement change speed comparison result meets the abnormal abrasion requirement; and if so, determining that the clearance compensation mechanism of the worm gear is abnormal, and outputting alarm information for prompting the abnormality of the clearance compensation mechanism.
For example, referring to fig. 2 and 4, the current displacement L of the worm 2012 after the preset time period T is collected by the displacement sensor 2023 integrated on the clearance compensation mechanism 20122; then, taking the ratio L/T of the current displacement L to the preset time T as the current displacement change speed Vb; and then, according to the current displacement change speed Vb and the standard displacement change speed V, determining that the comparison result of the displacement change speed is Vb > V, namely that the comparison result of the displacement change speed meets the requirement of abnormal abrasion, determining that the clearance compensation mechanism 20122 of the worm gear is abnormal, and outputting alarm information for prompting the abnormality of the clearance compensation mechanism 20122.
According to the monitoring method of the worm and gear, when the current operation parameters comprise the current displacement, the current displacement is acquired in real time by using the displacement sensor arranged on the clearance compensation mechanism at the swinging end of the worm and gear, so that when the controller compares the current displacement change speed with the standard displacement change speed and judges whether the obtained displacement change speed comparison result meets the abnormal abrasion requirement, the controller can identify whether the clearance compensation mechanism of the worm and gear is abnormal in advance so as to prompt a user to overhaul the clearance compensation mechanism of the worm and gear in advance.
It can be understood that the abnormal clamping stagnation of the worm and the worm gear and the abnormal abrasion of the worm and the worm gear can occur simultaneously or respectively, that is, the controller can output alarm information for prompting the abnormal clamping stagnation of the worm and the worm gear and output alarm information for prompting the abnormal abrasion of the worm and the worm gear at the same time; the controller can also only output alarm information for prompting the abnormal clamping stagnation of the worm gear or only output alarm information for prompting the abnormal abrasion of the worm gear, which is determined according to the actual condition of the vehicle in the running process.
Fig. 7 is a block diagram of a controller according to an embodiment of the present invention. The controller is applied to a vehicle monitoring system, which further comprises: the sensor is arranged on the worm gear;
the controller can receive monitoring signals sent by each sensor on the worm gear, judge whether the worm gear operates normally according to the monitoring signals, and send alarm signals to the alarm module when the worm gear operates abnormally. The controller may be present alone or integrated in the C-EPS controller.
Referring to fig. 7, the controller 500 may include:
the acquisition module 501 is used for acquiring the current operating parameters of the worm gear through the sensor;
a comparison module 502, configured to compare the current operation parameter with a standard operation parameter of the worm gear to obtain a comparison result;
the alarm module 503 is configured to output alarm information for prompting that the worm and gear operate abnormally when the comparison result meets an abnormal requirement; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear is abnormal clamping stagnation of the worm gear; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
Optionally, in the case that the current operating parameters include a current acceleration, a current torque value, and a current angle value, the standard operating parameters include: the standard acceleration, the standard torque value and the standard angle value, and the comparison result comprises: an acceleration comparison result, a torque comparison result and an angle comparison result;
the alignment module 502 is further configured to:
comparing the current acceleration with the standard acceleration to obtain an acceleration comparison result, comparing the current torque value with the standard torque value to obtain a torque comparison result, and comparing the current angle value with the standard angle value to obtain an angle comparison result;
the alarm module 503 is further configured to:
and when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement, outputting alarm information for prompting the abnormal clamping stagnation of the worm and gear.
Optionally, the controller 500 may further include:
the first detection module is used for determining that the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirement when the acceleration comparison result is that the current acceleration is greater than the standard acceleration, the torque comparison result is that the current torque value is greater than the standard torque value, and the angle comparison result is that the current angle value is greater than the standard angle value.
Optionally, in case the current operating parameter comprises a current acceleration, a current torque value and a current angle value, the sensor comprises: the acceleration sensor is used for collecting the current acceleration, and the torque and angle sensor is used for collecting the current torque value and the current angle value; the acceleration sensor is arranged on a speed reducing mechanism shell at the meshing position of the worm gear, and the torque and angle sensor is arranged on a central shaft of the worm gear;
the alarm module 503 is further configured to:
and outputting alarm information for prompting the abnormity of the speed reducing mechanism and the central shaft under the condition that the abnormal operation of the worm gear is abnormal clamping stagnation of the worm gear.
Optionally, in a case that the current operation parameter includes a current displacement amount, the standard operation parameter includes: the standard displacement change speed, and the comparison result comprises: comparing the displacement change speed;
the alignment module 502 is further configured to:
taking the ratio of the current displacement acquired after the preset time length to the preset time length as the current displacement change speed of the worm gear; comparing the current displacement change speed with the standard displacement change speed to obtain a displacement change speed comparison result;
the alarm module 503 is further configured to:
and when the displacement change speed comparison result meets the abnormal abrasion requirement, outputting alarm information for prompting the abnormal abrasion of the worm and gear.
Optionally, the controller 500 may further include:
and the second detection module is used for determining that the comparison result of the displacement change speed meets the abnormal wear requirement when the comparison result of the displacement change speed is that the current displacement change speed is greater than the standard displacement change speed.
Optionally, in a case where the current operation parameter includes a current displacement amount, the sensor includes: the displacement sensor is used for acquiring the current displacement and is arranged on a clearance compensation mechanism at the swinging end of the worm gear;
the alarm module 503 is further configured to:
and outputting alarm information for prompting the abnormity of the clearance compensation mechanism under the condition that the abnormal operation of the worm gear is abnormal abrasion of the worm gear.
According to the controller of the worm gear, the sensor is arranged on the worm gear, the current running parameters of the vehicle are detected in the running process of the vehicle, the comparison result of the detected current acceleration, current torque value, current angle value and current displacement with the standard running parameters is used for judging whether the worm gear is in abnormal clamping stagnation of the worm gear or abnormal abrasion of the worm gear, and therefore alarm information used for prompting the clamping stagnation of the worm gear or the abnormal abrasion of the worm gear is output, and a user is prompted to overhaul the worm gear in time.
The embodiment of the invention also provides a vehicle which can comprise the monitoring method of the worm gear.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
Claims (10)
1. The monitoring method of the worm gear is characterized by being applied to a controller in a vehicle monitoring system, and the vehicle monitoring system further comprises the following steps: the sensor is arranged on the worm gear; the monitoring method comprises the following steps:
acquiring current operating parameters of the worm gear through the sensor;
comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result;
when the comparison result meets the abnormal requirement, outputting alarm information for prompting the abnormal operation of the worm gear; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear and the worm is abnormal clamping stagnation of the worm gear and the worm; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
2. The method of claim 1, wherein where the current operating parameters include a current acceleration, a current torque value, and a current angle value, the standard operating parameters include: the standard acceleration, the standard torque value and the standard angle value, and the comparison result comprises: an acceleration comparison result, a torque comparison result and an angle comparison result; comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result, wherein the comparison result comprises the following steps:
comparing the current acceleration with the standard acceleration to obtain an acceleration comparison result, comparing the current torque value with the standard torque value to obtain a torque comparison result, and comparing the current angle value with the standard angle value to obtain an angle comparison result;
the exception request comprises an exception stuck request; when the comparison result accords with the abnormal requirement, the output is used for prompting the alarm information that the worm gear and worm operates abnormally includes:
and when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement, outputting alarm information for prompting the abnormal clamping stagnation of the worm and gear.
3. The method according to claim 2, wherein before outputting alarm information for prompting abnormal jamming of the worm gear when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal jamming requirement, the method further comprises:
and when the acceleration comparison result is that the current acceleration is greater than the standard acceleration, the torque comparison result is that the current torque value is greater than the standard torque value, and the angle comparison result is that the current angle value is greater than the standard angle value, determining that the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously meet the abnormal clamping stagnation requirement.
4. The method of claim 1, wherein, where the current operating parameters include a current acceleration, a current torque value, and a current angle value, the sensor comprises: the acceleration sensor is used for collecting the current acceleration, and the torque and angle sensor is used for collecting the current torque value and the current angle value; the acceleration sensor is arranged on a speed reducing mechanism shell at the meshing position of the worm gear, and the torque and angle sensor is arranged on a central shaft of the worm gear;
output is used for the suggestion worm gear abnormal operation's alarm information includes:
and outputting alarm information for prompting the abnormity of the speed reducing mechanism and the central shaft under the condition that the abnormal operation of the worm gear is abnormal clamping stagnation of the worm gear.
5. The method of claim 1, wherein in the case where the current operating parameter includes a current displacement amount, the standard operating parameter includes: the standard displacement change speed, and the comparison result comprises: comparing the displacement change speed; comparing the current operating parameters with the standard operating parameters of the worm gear to obtain a comparison result, wherein the comparison result comprises the following steps:
taking the ratio of the current displacement acquired after the preset time length to the preset time length as the current displacement change speed of the worm gear;
comparing the current displacement change speed with the standard displacement change speed to obtain a displacement change speed comparison result;
the abnormal requirement comprises an abnormal abrasion requirement; when the comparison result accords with the abnormal requirement, the output is used for prompting the alarm information that the worm gear and worm operates abnormally includes:
and when the displacement change speed comparison result meets the abnormal abrasion requirement, outputting alarm information for prompting the abnormal abrasion of the worm and gear.
6. The method according to claim 5, wherein before outputting alarm information for prompting abnormal wear of the worm gear when the displacement change speed comparison result meets the abnormal wear requirement, the method further comprises:
and when the comparison result of the displacement change speed is that the current displacement change speed is greater than the standard displacement change speed, determining that the comparison result of the displacement change speed meets the abnormal abrasion requirement.
7. The method of claim 1, wherein in the event that the current operating parameter comprises a current amount of displacement, the sensor comprises: the displacement sensor is used for acquiring the current displacement and is arranged on a clearance compensation mechanism at the swinging end of the worm gear and the worm;
output is used for the suggestion worm gear abnormal operation's alarm information includes:
and under the condition that the abnormal operation of the worm gear is the abnormal abrasion of the worm gear, outputting alarm information for prompting the abnormity of the clearance compensation mechanism.
8. A controller for use in a vehicle monitoring system, the vehicle monitoring system further comprising: the sensor comprises a worm gear and a sensor arranged on the worm gear; the controller includes:
the acquisition module is used for acquiring the current operating parameters of the worm gear through the sensor;
the comparison module is used for comparing the current operation parameters with the standard operation parameters of the worm gear to obtain comparison results;
the alarm module is used for outputting alarm information for prompting the abnormal operation of the worm gear when the comparison result meets the abnormal requirement; under the condition that the current operation parameters comprise the current acceleration, the current torque value and the current angle value, the abnormal operation of the worm gear is abnormal clamping stagnation of the worm gear; and under the condition that the current operation parameters comprise the current displacement, the abnormal operation of the worm gear is the abnormal abrasion of the worm gear.
9. The controller of claim 1, wherein where the current operating parameters include a current acceleration, a current torque value, and a current angle value, the standard operating parameters include: the standard acceleration, the standard torque value and the standard angle value, and the comparison result comprises: an acceleration comparison result, a torque comparison result and an angle comparison result;
the comparison module is further configured to:
comparing the current acceleration with the standard acceleration to obtain an acceleration comparison result, comparing the current torque value with the standard torque value to obtain a torque comparison result, and comparing the current angle value with the standard angle value to obtain an angle comparison result;
the alarm module is further configured to:
and when the acceleration comparison result, the torque comparison result and the angle comparison result simultaneously accord with the abnormal clamping stagnation requirement, outputting alarm information for prompting the abnormal clamping stagnation of the worm and the gear.
10. A vehicle comprising the monitoring method of a worm gear according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110878324.5A CN115701531A (en) | 2021-07-30 | 2021-07-30 | Worm and gear monitoring method, controller and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110878324.5A CN115701531A (en) | 2021-07-30 | 2021-07-30 | Worm and gear monitoring method, controller and vehicle |
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