CN117347079A - Commercial vehicle cab shake detection method and device and electronic equipment - Google Patents

Commercial vehicle cab shake detection method and device and electronic equipment Download PDF

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Publication number
CN117347079A
CN117347079A CN202311446361.4A CN202311446361A CN117347079A CN 117347079 A CN117347079 A CN 117347079A CN 202311446361 A CN202311446361 A CN 202311446361A CN 117347079 A CN117347079 A CN 117347079A
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China
Prior art keywords
cab
shake
detecting
suspension
commercial vehicle
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Pending
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CN202311446361.4A
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Chinese (zh)
Inventor
岳涛
殷金祥
时磊
王军龙
迟光亮
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Weichai New Energy Commercial Vehicle Co Ltd
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Weichai New Energy Commercial Vehicle Co Ltd
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Application filed by Weichai New Energy Commercial Vehicle Co Ltd filed Critical Weichai New Energy Commercial Vehicle Co Ltd
Priority to CN202311446361.4A priority Critical patent/CN117347079A/en
Publication of CN117347079A publication Critical patent/CN117347079A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/04—Suspension or damping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

The application provides a detection method for commercial vehicle cab shake, which relates to the technical field of vehicles and comprises the following steps: acquiring a signal for representing the shake problem of a cab of the commercial vehicle; detecting shake of a cab system; jitter detection is performed on the suspension system. The vibration problem of the cab can be comprehensively known, so that the vibration problem can be solved according to the existing vibration problem, the problem that the excitation frequency of the road surface and the tires in the prior art is generally below 25Hz, the general suspension stiffness of the commercial truck is far higher than that of the passenger car for bearing purposes, the attenuation capacity of low-frequency vibration is lower than that of the passenger car, and the abnormal vibration of the cab of the commercial truck under a certain speed can often occur after the cab or suspension mode is excited.

Description

Commercial vehicle cab shake detection method and device and electronic equipment
Technical Field
The invention relates to the technical field of vehicles, in particular to a method and a device for detecting shake of a cab of a commercial vehicle and electronic equipment.
Background
Commercial trucks are very mainstream vehicles in the transportation market in China, which is more trucks with independent cabs and cargo boxes than VAN-type transportation trucks (small cargo capacity). In recent years, consumers pay more attention to comfort requirements besides the requirement of 'multi-pull fast running', particularly, under long-distance and high-speed working conditions, the fatigue of a driver can be aggravated due to uncomfortable riding or abnormal shake of a cab, so that the commercial truck is required to carry out driving shake related performance development and verification in the development stage.
The commercial vehicle cab is fixed on the frame through the cab suspension, and after the road surface and the tire excitation are subjected to suspension vibration isolation, the transmitted vibration can be attenuated through the cab suspension. The excitation frequency of the road surface and the tires is generally below 25Hz, the general suspension stiffness of the commercial truck for bearing purposes is far higher than that of the passenger car, the attenuation capacity of low-frequency vibration is lower than that of the passenger car, and the abnormal shaking of the cab of the commercial truck at a certain speed can often occur after the cab or suspension mode is excited.
Disclosure of Invention
The application provides a detection method, a detection device and electronic equipment for commercial vehicle cab shake, and aims to at least solve the technical problems in the related art.
According to an aspect of the embodiments of the present application, there is provided a method for detecting cab shake of a commercial vehicle, including: acquiring a signal for representing the shake problem of a cab of the commercial vehicle; detecting shake of a cab system;
jitter detection is performed on the suspension system.
As an alternative implementation mode, a first acceleration sensor is arranged on the passive end face of the cab suspension bracket, and a second acceleration sensor is arranged on the end face of the axle close to the tire and the middle of the plate spring corresponding to the lower end face of the frame; the shake detection of the cab system at least comprises: detecting a suspension vibration isolation rate of a cab, detecting a rigid mode of the cab and detecting a working mode of the cab; the shake detection of the suspension system at least comprises: and detecting one of vibration isolation rate of the suspension, deflection of the suspension and tyre parameters.
As an alternative embodiment, the cab suspension vibration isolation rate detection includes: acquiring passive side acceleration under a real-time working condition; and determining the suspension vibration isolation rate of the cab according to the passive side acceleration.
As an alternative embodiment, the cab rigid body mode detection includes: in the whole vehicle state, the hammering method detects the cab.
As an alternative embodiment, the cab operation mode detection includes: determining a response peak value and a main mode shape of a working mode under a real-time working condition; and determining the working mode of the cab according to the response peak value of the working mode and the main mode shape.
As an alternative embodiment, the suspension vibration isolation rate detection includes: acquiring the end face acceleration of the axle close to the tire under the real-time working condition; and determining the vibration isolation rate of the driving suspension according to the acceleration of the end surface of the axle close to the tire.
As an alternative embodiment, the suspension deflection detection includes: performing drop method test under the whole vehicle state; determining a damping ratio of the suspension; it is determined whether the suspension deflection is within a design range.
As an alternative embodiment, the tire parameter detection includes: acquiring dynamic balance parameters, radial jump parameters and end jump parameters of the tire; and detecting the tire parameters according to the tire dynamic balance parameters, the radial jump parameters and the end jump parameters.
According to another aspect of the embodiment of the application, there is further provided a device for detecting a shake of a cab of a commercial vehicle, wherein the signal acquisition module is used for acquiring a signal for representing that the cab of the commercial vehicle has a shake problem; the cab system detection module is used for detecting shake of the cab system; and the suspension system detection module is used for detecting the shake of the suspension system.
According to yet another aspect of the embodiments of the present application, there is provided an electronic device including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory complete communication with each other through the communication bus, and the memory is configured to store a computer program; the processor is configured to execute the method steps of detecting the cab shake of the commercial vehicle by running the computer program stored on the memory.
In an embodiment of the present application, a method for detecting cab shake of a commercial vehicle includes: acquiring a signal for representing the shake problem of a cab of the commercial vehicle; detecting shake of a cab system; jitter detection is performed on the suspension system. The vibration problem of the cab can be comprehensively known, so that the vibration problem can be solved according to the existing vibration problem, the problem that the excitation frequency of the road surface and the tires in the prior art is generally below 25Hz, the general suspension stiffness of the commercial truck is far higher than that of the passenger car for bearing purposes, the attenuation capacity of low-frequency vibration is lower than that of the passenger car, and the abnormal vibration of the cab of the commercial truck under a certain speed can often occur after the cab or suspension mode is excited.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of an alternative method for detecting cab shake of a commercial vehicle according to an embodiment of the present application;
fig. 2 is a block diagram of an alternative electronic device according to an embodiment of the present application.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Commercial trucks are very mainstream vehicles in the transportation market in China, which is more trucks with independent cabs and cargo boxes than VAN-type transportation trucks (small cargo capacity). In recent years, consumers pay more attention to comfort requirements besides the requirement of 'multi-pull fast running', particularly, under long-distance and high-speed working conditions, the fatigue of a driver can be aggravated due to uncomfortable riding or abnormal shake of a cab, so that the commercial truck is required to carry out driving shake related performance development and verification in the development stage.
The commercial vehicle cab is fixed on the frame through the cab suspension, and after the road surface and the tire excitation are subjected to suspension vibration isolation, the transmitted vibration can be attenuated through the cab suspension. The excitation frequency of the road surface and the tires is generally below 25Hz, the general suspension stiffness of the commercial truck for bearing purposes is far higher than that of the passenger car, the attenuation capacity of low-frequency vibration is lower than that of the passenger car, and the abnormal shaking of the cab of the commercial truck at a certain speed can often occur after the cab or suspension mode is excited.
As shown in fig. 1, an embodiment of the present application provides a method for detecting cab shake of a commercial vehicle, including:
s1, acquiring a signal for representing that a commercial vehicle cab has a shake problem;
s2, jitter detection is carried out on a cab system;
s3, jitter detection is carried out on the suspension system.
The setting mode can comprehensively know the shake problem of the cab, so that the problem of shake can be solved according to the existing shake problem, the problem that the excitation frequency of the road surface and tires in the prior art is generally below 25Hz, the general suspension stiffness of a commercial truck is far higher than that of a passenger car for bearing purposes, the attenuation capacity of low-frequency vibration is lower than that of the passenger car, and the cab abnormal shake of the commercial truck under a certain vehicle speed can often occur after the cab or suspension mode is excited.
It should be noted that the signal for indicating that the commercial vehicle cab has the shake problem may be tested through an objective test, or may be judged through subjective feeling of the driver or the passenger, which is not limited in this application.
As an alternative implementation mode, a first acceleration sensor is arranged on the passive end face of the cab suspension bracket, and a second acceleration sensor is arranged on the end face of the axle close to the tire and the middle of the plate spring corresponding to the lower end face of the frame; the shake detection of the cab system at least comprises: detecting a suspension vibration isolation rate of a cab, detecting a rigid mode of the cab and detecting a working mode of the cab; the shake detection of the suspension system at least comprises: and detecting one of vibration isolation rate of the suspension, deflection of the suspension and tyre parameters.
The acceleration sensor is arranged, so that the detection accuracy of the cab shake problem can be further improved.
As an alternative embodiment, the cab suspension vibration isolation rate detection includes: acquiring passive side acceleration under a real-time working condition; and determining the suspension vibration isolation rate of the cab according to the passive side acceleration.
Wherein, optionally, the range of the acceleration sensor can be in the (0-50) g range, so as to ensure that real-time acceleration signals can be acquired; the test signal coordinate system is defined as a right-hand rectangular coordinate system, the X direction points to the headstock, and the Z direction is vertically upwards; the acquisition signal bandwidth is set to 1K and the frequency resolution is set to 1Hz.
As an alternative embodiment, the cab rigid body mode detection includes: in the whole vehicle state, the hammering method detects the cab.
Specifically, the range of the acceleration sensor can be selected in the (0-50) g range so as to ensure that real-time acceleration signals can be acquired; the test signal coordinate system is defined as a right-hand rectangular coordinate system, the X direction points to the headstock, and the Z direction is vertically upwards; the acquisition signal bandwidth was set at 32Hz and the frequency resolution was set at 0.25Hz.
As an alternative embodiment, the cab operation mode detection includes: determining a response peak value and a main mode shape of a working mode under a real-time working condition; and determining the working mode of the cab according to the response peak value of the working mode and the main mode shape.
Specifically, under the whole vehicle state, an OMA test method can be adopted for test and analysis, and the measuring range of the acceleration sensor is in the (0-50) g range, so that the real-time acceleration signal can be acquired; the test signal coordinate system is defined as a right-hand rectangular coordinate system, the X direction points to the headstock, and the Z direction is vertically upwards; the acquisition signal bandwidth was set at 32Hz and the frequency resolution was set at 0.25Hz.
As an alternative embodiment, the suspension vibration isolation rate detection includes: acquiring the end face acceleration of the axle close to the tire under the real-time working condition; and determining the vibration isolation rate of the driving suspension according to the acceleration of the end surface of the axle close to the tire.
Specifically, when the vibration isolation rate of the driving suspension is determined, the range (0-50) g of the range of the acceleration sensor can be selected, so that real-time acceleration signals can be acquired; the test signal coordinate system is defined as a right-hand rectangular coordinate system, the X direction points to the headstock, and the Z direction is vertically upwards; the acquisition signal bandwidth was set to 100Hz and the frequency resolution was set to 1Hz.
As an alternative embodiment, the suspension deflection detection includes: performing drop method test under the whole vehicle state; determining a damping ratio of the suspension; it is determined whether the suspension deflection is within a design range.
Specifically, in the whole vehicle state, the falling method is used for testing, the range of the acceleration sensor is selected to be in the (0-50) g range, and the real-time acceleration signal can be acquired; the test signal coordinate system is defined as a right-hand rectangular coordinate system, the X direction points to the headstock, and the Z direction is vertically upwards; the acquisition signal bandwidth was set to 100Hz and the frequency resolution was set to 1Hz. The signal processing sprung low-pass filter cutoff bandwidth was set to 5Hz and the unsprung low-pass filter cutoff bandwidth was set to 20Hz.
As an alternative embodiment, the tire parameter detection includes: acquiring dynamic balance parameters, radial jump parameters and end jump parameters of the tire; and detecting the tire parameters according to the tire dynamic balance parameters, the radial jump parameters and the end jump parameters.
According to another aspect of the embodiment of the application, a device for detecting the shake of a cab of a commercial vehicle is also provided. The apparatus may include:
the signal acquisition module is used for acquiring signals used for representing the shake problem of the cab of the commercial vehicle;
the cab system detection module is used for detecting shake of the cab system;
and the suspension system detection module is used for detecting the shake of the suspension system.
Fig. 2 is a block diagram of an alternative electronic device, according to an embodiment of the present application, including a processor 602, a communication interface 604, a memory 606, and a communication bus 608, as shown in fig. 2, wherein the processor 602, the communication interface 604, and the memory 606 communicate with each other via the communication bus 608, wherein,
a memory 606 for storing a computer program;
the processor 602, when executing the computer program stored on the memory 606, performs the following steps:
acquiring a signal for representing the shake problem of a cab of the commercial vehicle;
detecting shake of a cab system;
jitter detection is performed on the suspension system.
In addition, according to still another aspect of the embodiments of the present application, there is further provided an electronic device of a method for detecting a cab shake of a commercial vehicle, where the electronic device may be a server, a terminal, or a combination thereof.
Alternatively, in the present embodiment, the above-described communication bus may be a PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus, or an EISA (Extended Industry Standard Architecture ) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one thick line is shown in fig. 2, but not only one bus or one type of bus.
The communication interface is used for communication between the electronic device and other devices.
The memory may include RAM or may include non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
Other module units in the detection device for detecting the cab shake of the commercial vehicle may be further included, but are not limited to, and are not described in detail in this example.
In addition, a storage medium may also be present. Alternatively, in the present embodiment, the above-described storage medium may be used for program code for executing the commercial vehicle cab shake detection method.
Alternatively, in this embodiment, the storage medium may be located on at least one network device of the plurality of network devices in the network shown in the above embodiment.
Alternatively, in the present embodiment, the storage medium is configured to store program code for performing the steps of:
acquiring a signal for representing the shake problem of a cab of the commercial vehicle;
detecting shake of a cab system;
jitter detection is performed on the suspension system.
Specific examples in this embodiment may refer to examples described in the above embodiments, and this will not be described in detail in this embodiment.
Alternatively, in the present embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a U disk, ROM, RAM, a mobile hard disk, a magnetic disk or an optical disk.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
The integrated units in the above embodiments may be stored in the above-described computer-readable storage medium if implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions to cause one or more electronic devices (which may be personal computers, servers or network devices, etc.) to perform all or part of the steps of the methods described in the various embodiments of the present application.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In several embodiments provided in the present application, it should be understood that the disclosed client may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, such as the division of the units, is merely a logical function division, and may be implemented in another manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in the present embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.

Claims (10)

1. A method for detecting commercial vehicle cab shake, comprising:
acquiring a signal for representing the shake problem of a cab of the commercial vehicle;
detecting shake of a cab system;
jitter detection is performed on the suspension system.
2. The method for detecting the shake of the cab of the commercial vehicle according to claim 1, wherein a first acceleration sensor is arranged on the passive end surface of the suspension bracket of the cab, and a second acceleration sensor is arranged on the end surface of the axle close to the tire and on the lower end surface of the corresponding frame in the middle of the plate spring;
the shake detection of the cab system at least comprises: detecting a suspension vibration isolation rate of a cab, detecting a rigid mode of the cab and detecting a working mode of the cab;
the shake detection of the suspension system at least comprises: and detecting one of vibration isolation rate of the suspension, deflection of the suspension and tyre parameters.
3. The method for detecting cab shake of a commercial vehicle according to claim 2, wherein the cab suspension vibration isolation ratio detection includes:
acquiring passive side acceleration under a real-time working condition;
and determining the suspension vibration isolation rate of the cab according to the passive side acceleration.
4. The method for detecting cab shake of a commercial vehicle according to claim 2, wherein the cab rigid body mode detection includes:
in the whole vehicle state, the hammering method detects the cab.
5. The method for detecting cab shake of a commercial vehicle according to claim 2, wherein the cab operation mode detection includes:
determining a response peak value and a main mode shape of a working mode under a real-time working condition;
and determining the working mode of the cab according to the response peak value of the working mode and the main mode shape.
6. The method for detecting commercial vehicle cab shake according to claim 2, wherein the suspension vibration isolation ratio detection includes:
acquiring the end face acceleration of the axle close to the tire under the real-time working condition;
and determining the vibration isolation rate of the driving suspension according to the acceleration of the end surface of the axle close to the tire.
7. The method for detecting commercial vehicle cab shake according to claim 2, wherein the suspension bias detection includes:
performing drop method test under the whole vehicle state;
determining a damping ratio of the suspension;
it is determined whether the suspension deflection is within a design range.
8. A device for detecting the shake of the cab of a commercial vehicle, characterized in that the tyre parameter detection comprises:
acquiring dynamic balance parameters, radial jump parameters and end jump parameters of the tire;
and detecting the tire parameters according to the tire dynamic balance parameters, the radial jump parameters and the end jump parameters.
9. A commercial vehicle cab shake detection device, comprising:
the signal acquisition module is used for acquiring signals used for representing the shake problem of the cab of the commercial vehicle;
the cab system detection module is used for detecting shake of the cab system;
and the suspension system detection module is used for detecting the shake of the suspension system.
10. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, characterized in that,
the memory is used for storing a computer program;
the processor is configured to execute the method steps of detecting commercial vehicle cab shake according to any one of claims 1 to 8 by running the computer program stored on the memory.
CN202311446361.4A 2023-11-01 2023-11-01 Commercial vehicle cab shake detection method and device and electronic equipment Pending CN117347079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311446361.4A CN117347079A (en) 2023-11-01 2023-11-01 Commercial vehicle cab shake detection method and device and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311446361.4A CN117347079A (en) 2023-11-01 2023-11-01 Commercial vehicle cab shake detection method and device and electronic equipment

Publications (1)

Publication Number Publication Date
CN117347079A true CN117347079A (en) 2024-01-05

Family

ID=89370936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311446361.4A Pending CN117347079A (en) 2023-11-01 2023-11-01 Commercial vehicle cab shake detection method and device and electronic equipment

Country Status (1)

Country Link
CN (1) CN117347079A (en)

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