CN116513142B - Oil pipe device for reducing ESP braking vibration, control method and vibration reduction device - Google Patents
Oil pipe device for reducing ESP braking vibration, control method and vibration reduction device Download PDFInfo
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- CN116513142B CN116513142B CN202310786853.1A CN202310786853A CN116513142B CN 116513142 B CN116513142 B CN 116513142B CN 202310786853 A CN202310786853 A CN 202310786853A CN 116513142 B CN116513142 B CN 116513142B
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- 230000009467 reduction Effects 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 230000005284 excitation Effects 0.000 claims description 18
- 230000008569 process Effects 0.000 claims description 18
- 238000013016 damping Methods 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 11
- 230000010349 pulsation Effects 0.000 abstract description 9
- 230000002238 attenuated effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/043—Brake line couplings, air hoses and stopcocks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
- B60T17/046—Devices for pipe guiding and fixing
Abstract
The application relates to the technical field of automobile vibration reduction, in particular to an oil pipe device for reducing ESP braking vibration, a control method and a vibration reduction device, wherein the oil pipe device comprises a first spiral vibration reduction connecting pipe connected with an oil pipe connecting port of an ESP pump body, and the end part of the first spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected with a left front tire braking cylinder of a vehicle; the second spiral vibration reduction connecting pipe is connected to an oil pipe connecting port of the ESP pump body, and the end part of the second spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected to a brake cylinder of a front right tire of the vehicle to form an oil pipe device for reducing ESP brake vibration. According to the application, on the basis of a common brake oil pipe, a spiral vibration reduction structure is adopted, so that the transmission of pipeline fluid pulsation to an ESP can be effectively reduced, false triggering of the ESP is eliminated, the safety performance of light truck high-speed driving is improved, and the satisfaction of passengers is further improved.
Description
Technical Field
The application relates to the technical field of automobile vibration reduction, in particular to an oil pipe device for reducing ESP braking vibration, a control method and a vibration reduction device.
Background
With the recent years of the adoption of ESP (Electronic Stability Program) by main engine factories, the structural proposal of a vehicle body electronic stability control system is increasing. Current commercial truck-deployed ESP structures tend to be arranged on the frame closer to the drive shaft, which drive shaft excitation is easily transmitted to the ESP.
In the long-time driving process of the truck at the speed of about 100kph at 5 gear, the first-order excitation frequency of the transmission shaft is coupled with the mode of the ESP support to cause resonance, so that the vibration on the ESP body is overlarge, the calculation accuracy of the ESP is influenced, and the ESP is caused to trigger a working mode by mistake, so that a spontaneous emergency braking phenomenon occurs, and serious safety accidents are easy to cause.
Disclosure of Invention
The present application aims to at least ameliorate one of the technical problems of the prior art. Therefore, the application provides an oil pipe device for reducing ESP braking vibration, a control method and a vibration reduction device.
According to a first aspect of the application, an oil pipe device for reducing ESP braking vibration comprises:
the ESP pump body is reserved with a plurality of oil pipe connectors;
the device comprises a first spiral vibration reduction connecting pipe, a second spiral vibration reduction connecting pipe and a third spiral vibration reduction connecting pipe, wherein one end of the first spiral vibration reduction connecting pipe is connected with an oil pipe connecting port of an ESP pump body, and the end part of the first spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected with a left front tire braking cylinder of a vehicle, and the first spiral vibration reduction connecting pipe comprises a first L-shaped connecting pipe, a first spiral vibration reduction pipe and a first bent pipe which are sequentially connected; the first L-shaped connecting pipe is connected to an oil pipe connecting port of the ESP pump body, and the distance between the central axis of the first spiral vibration reduction pipe and the ESP pump body is 325-385 mm;
the end part of the second spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected to a brake cylinder of a front right tire of the vehicle, wherein the second spiral vibration reduction connecting pipe comprises a second L-shaped connecting pipe, a second spiral vibration reduction pipe and a second elbow pipe which are sequentially connected; the second L-shaped connecting pipe is connected to an oil pipe connecting port of the ESP pump body, and the distance between the central axis of the second spiral vibration reduction pipe and the ESP pump body is 275-335 mm, so that an oil pipe device for reducing ESP braking vibration is formed.
According to the oil pipe device for reducing ESP braking vibration, which is disclosed by the embodiment of the application, on the basis of a common braking oil pipe, a spiral vibration reduction structure is adopted, so that the transmission of pipeline fluid pulsation to an ESP can be effectively reduced, false triggering of the ESP is eliminated, the safety performance of light truck type high-speed driving is improved, and the satisfaction of passengers is further improved.
In one possible implementation manner of the first aspect, the diameter of the spiral coils of the first spiral vibration reduction tube and/or the second spiral vibration reduction tube is 29 mm-39 mm, the distance between the spiral coils is 2 mm-4 mm, and the spiral structure is adopted on the basis of a common brake oil tube, so that the transmission shaft excitation is transmitted to the ESP through the brake pipeline, the false triggering of the ESP is eliminated, the safety performance of the light truck type high-speed driving is improved, and the satisfaction degree of passengers is improved.
In a possible implementation manner of the first aspect, the pipe diameter of the first spiral vibration reduction connecting pipe and/or the second spiral vibration reduction connecting pipe is 4.8mm plus or minus 0.08mm, so that the influence of transmission shaft excitation transmitted to the ESP through the pipeline can be effectively reduced while orderly circulation of fluid in the oil pipe pipeline is ensured.
In one possible implementation manner of the first aspect, an included angle of 90 ° is formed between the first L-shaped connecting pipe and the second L-shaped connecting pipe after the first L-shaped connecting pipe is connected to the ESP pump body, and an existing layout manner of the brake oil pipe is optimized to reduce the overall occupied space of the device.
In a possible implementation manner of the first aspect, the number of turns of the first spiral damping tube is larger than that of the second spiral damping tube, so that the pipeline fluid pulsation can be effectively reduced to be transmitted to the ESP and the excitation frequency can be attenuated based on the design.
According to a second aspect of the present application, a control method for reducing ESP braking vibration is applied to the above-mentioned oil pipe device for reducing ESP braking vibration, where the control method includes the following steps:
in the constant-speed running process of the automobile, a target frequency f of coupling resonance is preset in an inertia measurement unit of vehicle ESP integrated sensor software 0 A vibration threshold;
when the automobile enters five-gear driving, the first-order excitation of the transmission shaft of the automobile can cause resonance, and the inertia measurement unit captures the frequency f meeting the target frequency 0 Resonant frequency f of (2) x ；
The inertial measurement unit collects and receives the resonance frequency f x The amplitude values of the X direction and the Y direction are calculated to obtain vibration values of the X direction and the Y direction;
if the vibration values in the X direction and the Y direction are calculated to exceed the vibration threshold value, the inertial measurement unit starts a filtering function to execute the vibration frequency f x And (3) the control process for reducing ESP braking vibration is completed.
In a possible implementation manner of the second aspect, theAn inertial measurement unit built-in filter for performing a resonance frequency f x Is a filtering process of (a).
According to the control method for reducing ESP braking vibration, provided by the embodiment of the application, the spiral vibration reduction oil pipe device and the calibration filtering control strategy are combined, so that the transmission shaft excitation is effectively reduced and transmitted to the ESP through the braking pipeline, the excitation frequency is attenuated, the false triggering of the ESP is eliminated, the NVH performance of a light truck and the safety performance of high-speed driving are improved, and the satisfaction degree of passengers is improved.
According to a third aspect of the application, a vibration reduction device comprises the oil pipe device for reducing the ESP braking vibration, and the vibration reduction device is used for reducing the transmission of fluid pulsation in an oil pipe line to an ESP.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an assembled schematic view of a tubing assembly for reducing ESP brake vibration in accordance with an embodiment of the present application;
FIG. 2 is a schematic view of a first helical vibration-damping connection pipe of a tubing set for reducing ESP brake vibrations according to an embodiment of the present application;
FIG. 3 is a schematic view of a second helical vibration-damping connection pipe of a tubing set for reducing ESP brake vibrations according to an embodiment of the present application;
fig. 4 is a flowchart of a control method for reducing ESP braking vibrations according to an embodiment of the application.
Reference numerals:
an ESP pump body 10;
first L-shaped connection pipe 100, first helical vibration damping pipe 200, first elbow pipe 300, second L-shaped connection pipe 400, second helical vibration damping pipe 500, and second elbow pipe 600.
Detailed Description
The following detailed description of embodiments of the application, with reference to the accompanying drawings, is illustrative of the embodiments described herein, and it is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
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 application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terms first, second, third and the like in the description and in the claims and in the drawings are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprising," "including," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a series of steps or elements may be included, or alternatively, steps or elements not listed or, alternatively, other steps or elements inherent to such process, method, article, or apparatus may be included.
Only some, but not all, of the details relating to the application are shown in the accompanying drawings. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
As used in this specification, the terms "component," "module," "system," "unit," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a unit may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or being distributed between two or more computers. Furthermore, these units may be implemented from a variety of computer-readable media having various data structures stored thereon. The units may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., second unit data from another unit interacting with a local system, distributed system, and/or across a network).
Comparative example
Taking a certain light truck type as an example, the ESP structure of the light truck type is arranged on the frame and is close to the transmission shaft, and the excitation of the transmission shaft is easily transmitted to the ESP. The specific study analysis is as follows:
in the long-time running process of the light truck type at the speed of 100kph at the speed of 5, the engine rotating speed is 2600rpm, the speed ratio of the gearbox 5 is 0.722, the rotating speed of a transmission shaft is 2600/0.722=3600 rpm, the first-order excitation frequency of the transmission shaft is 3600/60=60 Hz, the ESP is fixed on a frame through a bracket, the mode of the bracket is also distributed near 50-70Hz, the first-order excitation of the transmission shaft is easily coupled with the mode of the ESP bracket, so that resonance is caused, the vibration on an ESP body is overlarge (see a comparison in detail table), the calculation accuracy of the ESP is influenced, the false triggering of the working mode of the ESP is easily caused, the emergency braking phenomenon of the vehicle is caused, and serious safety accidents are caused.
Example 1
Referring to fig. 1 to 3, the present embodiment provides an oil pipe device for reducing ESP braking vibration, which includes:
the ESP pump body 10 is provided with a plurality of oil pipe connectors in a reserved mode;
the first spiral vibration reduction connecting pipe is connected with an oil pipe connecting port of the ESP pump body 10 at one end, and connected with a left front tire braking cylinder of a vehicle at the end far away from the oil pipe connecting port, wherein the first spiral vibration reduction connecting pipe comprises a first L-shaped connecting pipe 100, a first spiral vibration reduction pipe 200 and a first bent pipe 300 which are sequentially connected; the first L-shaped connecting pipe 100 is connected to an oil pipe connecting port of the ESP pump body 10, and the distance between the central axis of the first spiral vibration reduction pipe 200 and the ESP pump body 10 is 325-385 mm;
the second spiral vibration reduction connecting pipe, one end of the second spiral vibration reduction connecting pipe is connected to an oil pipe connecting port of the ESP pump body 10, and the end part of the second spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected to a brake cylinder of a front right tire of the vehicle, wherein the second spiral vibration reduction connecting pipe comprises a second L-shaped connecting pipe 400, a second spiral vibration reduction pipe 500 and a second bent pipe 600 which are sequentially connected; the second L-shaped connecting pipe 400 is connected to an oil pipe connection port of the ESP pump body 10, the distance between the central axis of the second spiral vibration reduction pipe 500 and the ESP pump body 10 is 275 mm-335 mm, an oil pipe device for reducing ESP braking vibration is formed, pipeline fluid pulsation is effectively reduced and transmitted to the ESP while position interference is avoided, and NVH noise, vibration and acoustic vibration roughness performance of the whole vehicle is improved.
According to the oil pipe device for reducing ESP braking vibration, which is disclosed by the embodiment of the application, on the basis of a common braking oil pipe, a spiral vibration reduction structure is adopted, so that the transmission of pipeline fluid pulsation to an ESP can be effectively reduced, false triggering of the ESP is eliminated, the safety performance of light truck type high-speed driving is improved, and the satisfaction of passengers is further improved.
The diameter of the spiral ring of the first spiral vibration reduction tube 200 and/or the second spiral vibration reduction tube 500 is 29 mm-39 mm, the interval between the spiral rings is 2 mm-4 mm, and the spiral structure is adopted on the basis of a common brake oil pipe, so that the transmission shaft excitation is transmitted to an ESP through a brake pipeline, the false triggering of the ESP is eliminated, the safety performance of light truck type high-speed driving is improved, and the satisfaction of passengers is improved.
The pipe diameter of the first spiral vibration reduction connecting pipe and/or the second spiral vibration reduction connecting pipe is 4.8mm plus or minus 0.08mm, so that the influence of transmission shaft excitation transmitted to the ESP through the pipeline can be effectively reduced while orderly circulation of fluid in the oil pipe pipeline is ensured.
It should be noted that, the first L-shaped connecting pipe 100 and the second L-shaped connecting pipe 400 connected to the ESP pump body 10 are disposed at an included angle of 90 ° and the layout of the existing brake oil pipe is optimized to reduce the overall occupied space of the device.
The number of turns of the first spiral damping tube 200 is larger than that of the second spiral damping tube 500, so that the pulsation of the pipeline fluid can be effectively reduced to be transmitted to the ESP and the excitation frequency can be attenuated based on the design.
Example 2
Referring to fig. 4, the present embodiment provides a control method for reducing ESP braking vibration, which is applied to the above-mentioned oil pipe device for reducing ESP braking vibration, and includes the following steps:
in the constant-speed running process of the automobile, a target frequency f of coupling resonance is preset in an inertia measurement unit of vehicle ESP integrated sensor software 0 A vibration threshold;
when the automobile enters five gears and runs at a speed of 100km/h, the first-order excitation of the transmission shaft of the automobile can cause resonance, and the inertia measurement unit captures the frequency f meeting the target frequency 0 Resonant frequency f of (2) x ；
The inertial measurement unit collects and receives the resonance frequency f x The amplitude values of the X direction and the Y direction are calculated to obtain vibration values of the X direction and the Y direction;
if the vibration values in the X direction and the Y direction are calculated to exceed the vibration threshold value, the inertial measurement unit starts a filtering function to execute the vibration frequency f x And (3) the control process for reducing ESP braking vibration is completed.
The inertial measurement unit incorporates a filter for performing a function on the resonance frequency f x Is a filtering process of (a).
According to the control method for reducing ESP braking vibration, which is disclosed by the embodiment of the application, by combining the spiral vibration-reducing oil pipe device, if the signal fluctuation is too large, most of vibration can be filtered, only part of small vibration is left, and the small vibration can be accepted by an ESP, so that the control method belongs to a safe vibration range, effectively reduces transmission shaft excitation to be transmitted to the ESP through a brake pipeline, attenuates excitation frequency, eliminates false triggering of the ESP, improves noise, vibration and harshness performance of a light truck and safety performance of high-speed driving, and improves satisfaction of passengers.
Scheme verification is performed on the above examples and comparative examples to obtain the following table one:
table ESP vibration effect
According to the first table, the design and the damping strategy of the ESP spiral damping structure have obvious improvement on the vibration of the ESP and the oil pipe, and can effectively reduce the transmission of the pipeline fluid pulsation to the ESP, so that the false triggering of the ESP is eliminated, the safety performance of the light truck type high-speed driving is improved, and the satisfaction of passengers is further improved.
Example 3
The embodiment provides a damping device, which comprises the oil pipe device for reducing the ESP braking vibration and is used for reducing the transmission of fluid pulsation in an oil pipe line to an ESP.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the application.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
It will be apparent that the described embodiments are only some, but not all, embodiments of the application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application for the embodiment. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A control method for reducing ESP braking vibrations, applied to a tubing device for reducing ESP braking vibrations, comprising:
in the constant-speed running process of the automobile, a target frequency f of coupling resonance is preset in an inertia measurement unit of vehicle ESP integrated sensor software 0 A vibration threshold;
when the automobile enters five-gear driving, the first-order excitation of the transmission shaft of the automobile can cause resonance throughThe inertial measurement unit captures a target frequency f 0 Resonant frequency f of (2) x ；
The inertial measurement unit collects and receives the resonance frequency f x The amplitude values of the X direction and the Y direction are calculated to obtain vibration values of the X direction and the Y direction;
if the vibration values in the X direction and the Y direction are calculated to exceed the vibration threshold value, the inertial measurement unit starts a filtering function to execute the vibration frequency f x The control process for reducing ESP braking vibration is completed;
the oil pipe device for reducing ESP braking vibration for realizing the control method specifically comprises the following steps:
the ESP pump body (10) is reserved with a plurality of oil pipe connectors;
the device comprises a first spiral vibration reduction connecting pipe, a second spiral vibration reduction connecting pipe and a third spiral vibration reduction connecting pipe, wherein one end of the first spiral vibration reduction connecting pipe is connected to an oil pipe connecting port of an ESP pump body (10), and the end part of the first spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected to a left front tire braking cylinder of a vehicle, wherein the first spiral vibration reduction connecting pipe comprises a first L-shaped connecting pipe (100), a first spiral vibration reduction pipe (200) and a first elbow pipe (300) which are sequentially connected; the first L-shaped connecting pipe (100) is connected to an oil pipe connecting port of the ESP pump body (10), and the distance between the central axis of the first spiral vibration reduction pipe (200) and the ESP pump body (10) is 325-385 mm;
the device comprises a first spiral vibration reduction connecting pipe, a second spiral vibration reduction connecting pipe and a third spiral vibration reduction connecting pipe, wherein one end of the first spiral vibration reduction connecting pipe is connected with an oil pipe connecting port of an ESP pump body (10), and the end part of the first spiral vibration reduction connecting pipe far away from the oil pipe connecting port is connected with a brake cylinder of a front right tire of a vehicle, and the first spiral vibration reduction connecting pipe comprises a first L-shaped connecting pipe (400), a first spiral vibration reduction pipe (500) and a first elbow pipe (600) which are sequentially connected; the second L-shaped connecting pipe (400) is connected to an oil pipe connecting port of the ESP pump body (10), and the distance between the central axis of the second spiral vibration reduction pipe (500) and the ESP pump body (10) is 275-335 mm, so that an oil pipe device for reducing ESP braking vibration is formed.
2. The E-lowering of claim 1A method for controlling SP brake vibration is characterized in that the inertial measurement unit is provided with a built-in filter for executing the control of the resonance frequency f x Is a filtering process of (a).
3. The control method for reducing braking vibration of ESP according to claim 1, characterized in that the diameter of the spiral turns of the first spiral vibration-reducing pipe (200) is 29 mm-39 mm and the interval between the spiral turns is 2 mm-4 mm.
4. The control method for reducing braking vibration of ESP according to claim 1, characterized in that the diameter of the spiral turns of the second spiral vibration-reducing pipe (500) is 29 mm-39 mm and the interval between the spiral turns is 2 mm-4 mm.
5. The control method for reducing ESP braking vibration according to claim 1, characterized in that the diameter of the first spiral damping connection pipe is 4.8mm ± 0.08mm.
6. The control method for reducing ESP braking vibration according to claim 1, characterized in that the diameter of the second spiral damping connection pipe is 4.8mm ± 0.08mm.
7. The control method for reducing braking vibration of ESP according to claim 1, characterized in that the first L-shaped connecting pipe (100) and the second L-shaped connecting pipe (400) connected to the ESP body (10) are disposed at an angle of 90 °.
8. The control method for reducing ESP braking vibration according to claim 1, characterized in that the number of turns of the first spiral damping tube (200) is greater than the number of turns of the second spiral damping tube (500).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786853.1A CN116513142B (en) | 2023-06-30 | 2023-06-30 | Oil pipe device for reducing ESP braking vibration, control method and vibration reduction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310786853.1A CN116513142B (en) | 2023-06-30 | 2023-06-30 | Oil pipe device for reducing ESP braking vibration, control method and vibration reduction device |
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| CN116513142A CN116513142A (en) | 2023-08-01 |
| CN116513142B true CN116513142B (en) | 2023-09-12 |
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| CN205098192U (en) * | 2015-11-02 | 2016-03-23 | 北汽银翔汽车有限公司 | A optimize arrangement structure for ABS or ESP hard tube connect |
| CN108545041A (en) * | 2018-04-10 | 2018-09-18 | 江铃控股有限公司 | A method of reducing interior idle noise |
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| CN116513142A (en) | 2023-08-01 |
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