CN108303269A - Fault detection system and method for motor vehicle braking system - Google Patents
Fault detection system and method for motor vehicle braking system Download PDFInfo
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- CN108303269A CN108303269A CN201810100026.1A CN201810100026A CN108303269A CN 108303269 A CN108303269 A CN 108303269A CN 201810100026 A CN201810100026 A CN 201810100026A CN 108303269 A CN108303269 A CN 108303269A
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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
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Abstract
The embodiment of the present application provides a kind of fault detection system and method for motor vehicle braking system, and wherein system includes：Detection device and reception device；Detection device includes：Pressure sensor, the wireless sending module being electrically connected with pressure sensor and can the power supply module that is electrically connected of break-make with pressure sensor and wireless sending module；Reception device includes：The wireless receiving module being wirelessly connected with wireless sending module, the host computer being electrically connected with wireless receiving module.The application is by wirelessly sending out, receiving the signal transmission between module realization pressure sensor and host computer so that fault detect light and handyization of braking system and facilitation.
Description
Technical field
This application involves vehicle fault detection technical field more particularly to a kind of fault detects for motor vehicle braking system
System and method.
Background technology
Currently, being much equipped with corresponding valve member based on the vehicle of gas braking to realize the braking of vehicle in the market.Wherein,
The characteristic that each valve member has its proprietary, when some in air-channel system or multiple valve members lose its due characteristic, table
It levies the air-channel system and produces failure.Therefore, the braking system of vehicle by the characteristic of detection valve member, can be judged with the presence or absence of event
Barrier.
In the prior art, the characteristic of valve member is detected, the pressure of valve member can be directly viewable by pressure gauge, or using wired
Pressure sensor detects the pressure of valve member.But not light and handy enough the convenient defect of above-mentioned detection method generally existing.
Invention content
The many aspects of the embodiment of the present application provide a kind of fault detection system and method for motor vehicle braking system, use
So that fault detect light and handyization and the facilitation of braking system.
The embodiment of the present application provides a kind of fault detection system for motor vehicle braking system, including：Detection device and
Reception device；
The detection device includes：Each valve member to be detected in the motor vehicle braking system can be fixed on and correspond to test position
Pressure sensor, wireless sending module and the power supply module at place；Wherein, the signal end of the pressure sensor is electrically connected to institute
State the signal end of wireless sending module；The anode of the positive and described wireless sending module of the pressure sensor is electrically connected to
The anode of the power supply module；The ground terminal of the pressure sensor is connected to the ground terminal of the wireless sending module, and the nothing
The ground terminal of line sending module can break-make connection by plug-in between patchcord and electrical connector and the cathode of the power supply module；
The reception device includes：The wireless receiving module and host computer being wirelessly connected with the wireless sending module；
Wherein, the pressure sensor, the pressure signal for acquiring corresponding valve member to be detected；
The wireless sending module described wirelessly connects for the collected pressure signal of the pressure sensor to be sent to
Receive module；
The wireless receiving module, for receiving pressure signal that the wireless sending module is sent and being sent to described
Position machine；
The host computer, the pressure signal sent for receiving the wireless receiving module, with to corresponding side valve to be checked
Part carries out accident analysis.
Still optionally further, the host computer includes：Control submodule；The control submodule is used for, in the pressure
When sensor and the wireless sending module are in the work shape after being powered, refer to wireless receiving module transmitting and receiving
It enables, so that the wireless receiving module receives the pressure signal that the wireless sending module is sent.
Still optionally further, the host computer further includes：Display sub-module and sub-module stored；Wherein, the display
Submodule, for showing that the wireless receiving module continuously transmits the signal waveform of the pressure signal come；The sub-module stored,
For being stored in wireless receiving module described in process fault detection is sent each time pressure signal or playback preserved
Pressure signal.
Still optionally further, the wireless sending module includes:It acquires submodule and is electrically connected with the acquisition submodule
The sending submodule connect；Wherein, the acquisition submodule is used to acquire the pressure signal that the pressure sensor detects, and will
Collected pressure signal is sent to the sending submodule；The sending submodule is for sending the acquisition submodule
Pressure signal be sent to the wireless receiving module.
Still optionally further, the pressure sensor is identical as the quantity of the wireless sending module, and one-to-one is electrically connected
It connects；Or, the wireless sending module is one, and each pressure sensor is electrically connected with the wireless sending module.
Still optionally further, the wireless receiving module passes through USB wiring and the upper mechatronics.
The embodiment of the present application also provides a kind of fault detection system suitable for motor vehicle braking system provided by the present application
The fault detection method of motor vehicle braking system, including：
It detects pressure sensor and whether wireless sending module is in the working condition after being powered；
It is instructed if it has, then being transmitted and received to wireless receiving module, so that wireless receiving module reception is described wireless
The pressure signal that sending module is sent；The pressure signal is by pressure sensor to corresponding valve member to be detected in motor vehicle braking system
Signal acquisition is carried out to obtain and sent out by the wireless sending module；
The pressure signal received according to the wireless receiving module carries out accident analysis to corresponding valve member to be detected.
Still optionally further, the pressure signal received according to the wireless receiving module carries out corresponding valve member to be detected
Accident analysis, including：It shows the signal waveform for the pressure signal that the wireless receiving module continuously receives or is stored in each
The pressure signal that wireless receiving module receives described in secondary process fault detection, so that user carries out corresponding valve member to be detected
Accident analysis.
Still optionally further, the method further includes：In response to pressure signal playback request, the pressure letter preserved is played back
Number.
In the embodiment of the present application, the corresponding pressure signal of valve member in braking system is detected using pressure sensor, led to
Wireless sending module is crossed to acquire pressure signal from pressure sensor and collected pressure signal is passed through wireless receiving module
It is sent to host computer, and then host computer can obtain the corresponding pressure change of valve member in braking system for accident analysis.
In above process, the signal between host computer and pressure sensor is wirelessly transmitted, and then accident analysis end
It can be detached with signal detection end so that fault detect light and handyization of braking system and facilitation.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is the structural schematic diagram for the fault detection system for motor vehicle braking system that one embodiment of the application provides；
Fig. 2 is the inside connection diagram for the detection device that Fig. 1 corresponding embodiments provide；
Fig. 3 is the structural schematic diagram of the fault detection system for the motor vehicle braking system that another embodiment of the application provides；
Fig. 4 a are the structural schematic diagram of the fault detection system for the motor vehicle braking system that the another embodiment of the application provides；
Fig. 4 b are the inside connection diagram for the detection device that Fig. 4 a corresponding embodiments provide；
Fig. 4 c are the structural schematic diagram of the fault detection system for the motor vehicle braking system that the another embodiment of the application provides；
Fig. 4 d are the inside connection diagram for the detection device that Fig. 4 c corresponding embodiments provide；
Fig. 5 is the method flow diagram of the fault detection method for the motor vehicle braking system that one embodiment of the application provides.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall within the protection scope of the present invention.
Currently, many vehicles use the braking system braked based on gas, this braking system big, pedal with braking moment
Stroke is shorter, manipulation is light and service-strong feature.In this braking system, there are multiple valve members, different valves
Part corresponds to different gas circuits, and then different valve members has different pressure characteristics.When braking system is in normal operating conditions
When, the pressure characteristic of the corresponding valve member of each gas circuit is in critical field.At a certain gas circuit or multiple gas circuits of braking system
When malfunction, the pressure characteristic of the corresponding valve member of corresponding failure gas circuit will occur significantly to change.Therefore, can pass through
The pressure characteristic of the corresponding valve member of detection gas circuit is in the gas circuit of malfunction to detect in braking system.However traditional use
The method of pressure gauge or wired pressure sensor detection valve member pressure characteristic is heavier, and equipment is not readily portable.
To solve drawbacks described above, the embodiment of the present application provides a kind of failure for motor vehicle braking system as shown in Figure 1
Detecting system, as shown in Figure 1, the system includes：Detection device D1 and reception device D2.
Detection device D1 includes：Each valve member to be detected in the motor vehicle braking system can be fixed on and correspond to inspection positions
Pressure sensor 10, the wireless sending module 11 that is electrically connected with pressure sensor 10 and with pressure sensor 10 and wireless hair
Send module 11 can break-make electrical connection power supply module 14.
Wherein, the connection relation between power supply module 14, pressure sensor 10 and wireless sending module 11 can be such as Fig. 2 institutes
Show.In fig. 2, the signal end S of pressure sensor 1010It is electrically connected to the signal end S of wireless sending module 1111；Pressure sensor
10 positive P10And the positive P of wireless sending module 1111It is electrically connected to the positive P of power supply module 1414；Pressure sensor 10
Ground terminal GND10It is connected to the ground terminal GND of wireless sending module 1111, and the ground terminal GND of wireless sending module 1111Pass through switching
The cathode N of line and electrical connector and power supply module 1414Between plug-in can break-make connection.When pressure sensor 10 and wireless transmission
When module 11 is not connected to power supply module 14, the two is in the off working state of power-off；When being connected to power supply module 14, the two enters
Working condition.
In above-mentioned detection device D1, pressure sensor 10, for acquiring the corresponding valve member pair to be detected in braking system
The pressure signal answered.When detecting, pressure sensor 10 is securable at the corresponding valve member of gas circuit to be detected.
Wireless sending module 11 is for receiving 10 collected pressure signal of pressure sensor and being sent to wireless receiving mould
Block 12.Wherein, wireless sending module 11 can be sent according to the sending cycle of setting.
Wherein, reception device D2 includes：With wireless sending module 11 be wirelessly connected wireless receiving module 12, with wirelessly connect
Receive the host computer 13 that module 12 is electrically connected.
Wireless receiving module 12 is used to receive the pressure signal of the transmission of wireless sending module 11 and sends supreme position machine 13；On
Position machine 13 is for receiving the pressure signal that wireless receiving module 12 is sent, to carry out accident analysis to corresponding valve member to be detected.
In the present embodiment, the corresponding pressure signal of valve member in braking system is detected by pressure sensor, passes through nothing
Line sending module acquires pressure signal from pressure sensor and sends collected pressure signal by wireless receiving module
To host computer, and then host computer can obtain the corresponding pressure change of valve member in braking system for accident analysis.Upper
During stating, the signal between host computer and pressure sensor is wirelessly transmitted, and then accident analysis end and letter
Number test side can detach so that fault detect light and handyization of braking system and facilitation.
In the above-described embodiments, optionally, the ground terminal GND of wireless sending module 1111With the cathode N of power supply module 1414It
Between can break-make connection, can be realized by the plug between patchcord and Aviation Connector.Such as N14On can set an Aviation Connector, such as
Shown in Fig. 2, when pressure sensor 10 need to enter working condition, GND11It can be docked, worked with the Aviation Connector by a patchcord
When except state, docking for patchcord and the Aviation Connector can be disconnected.Aviation Connector has quickly connection and separation, reliability height
The characteristics of, be conducive to pressure sensor 10 and wireless sending module 11 rapidly enters working condition, and with stable, reliability is high
Working performance.In turn, middle in such a way that switch controls whether to be powered compared with the existing technology, the present embodiment can avoid user
Battery power shortage is lost caused by forgetting to close power supply.In addition to this, due to Aviation Connector have preferable electric property and
The characteristics of shockproof water proof and dust proof, therefore in practical applications, pressure sensor 10 and other ports of wireless sending module 11
Connection can also be realized by Aviation Connector and patchcord, to promote the stability of failure system detection device.
In an optional embodiment, as shown in figure 3, host computer 13 includes control submodule 131.Control submodule 131
For when pressure sensor 10 and wireless sending module 11 are in the work shape after being powered, being sent to wireless receiving module 12
Acquisition instructions, so that wireless receiving module 12 acquires the pressure signal that wireless sending module 11 is sent.
As shown in figure 3, host computer 13 further includes：Display sub-module 132 and sub-module stored 133.Wherein, submodule is shown
Block 132 is used to show the signal waveform that wireless receiving module 12 continuously transmits the pressure signal come.And then user can pass through phase
The signal waveform answered analyzes the consecutive variations of pressure, is conducive to the accuracy for promoting accident analysis.
Wherein, sub-module stored 133 is sent for being stored in wireless receiving module 13 in process fault detection each time
Pressure signal or the pressure signal that has preserved of playback.Different from the prior art, in the present embodiment, host computer 13 is believed with pressure
Number preservation and playback function, and then user can be tracked historical failure detection data, and can pass through playback function
Representation of the historical test scene.
In practice, host computer 13 can also control the computer of program by display screen and chip microcontroller by being equipped with
It realizes, the present embodiment is not restricted this.
Optionally, as shown in figure 3, wireless sending module 11 includes:Acquire submodule 111 and with acquisition submodule 111
The sending submodule 112 of electrical connection.Wherein, acquisition submodule 111 is used to acquire the pressure signal that pressure sensor 11 detects,
And collected pressure signal is sent to sending submodule 112；Sending submodule 112 is sent for that will acquire submodule 111
The pressure signal come is sent to wireless receiving module 12.
Optionally, wireless receiving module 12 can pass through USB (Universal Serial Bus, universal serial bus) wiring
It is electrically connected with host computer 13.In turn, after wireless receiving module 13 collects the pressure signal that sending submodule 122 is sent, can lead to
It crosses the USB wiring and collected pressure signal is sent to host computer 13.
In an optional embodiment, the pressure sensor 10, wireless sending module 11 in detection device D1 and power supply
The quantity of component 14 is identical, may respectively be it is multiple, as shown in Fig. 1 or Fig. 3.Pressure sensor 10, wireless sending module 11 can be with
For the one-to-one electrical connection of power supply module 14 to constitute multigroup unit, the internal circuit connection of every group of unit can be as shown in Figure 3.
In an optional embodiment, the quantity of pressure sensor 10 and wireless sending module 11 in detection device D1
It is identical, it may respectively be multiple, the quantity of power supply module 14 is one, as shown in fig. 4 a.Multiple pressure sensors 10 and multiple
Wireless sending module 11 one-to-one can connect, and share a power supply module 14.In this embodiment, detection device D1
Circuit connection can be as shown in Figure 4 b.In fig. 4b, by taking two pressure sensors 10 and two wireless sending modules 11 as an example, two
The signal end S of pressure sensor 1010Respectively with the signal end S of two wireless sending modules 1111One-to-one connection；Two pressure
The positive P of sensor 1010And the positive P of two wireless sending modules 1111It is commonly connected to the positive P of power supply module 1414；
The ground terminal GND of two pressure sensors 1010With the ground terminal GND of two wireless sending modules 1111One-to-one connection, and two nothings
The ground terminal GND of line sending module 1111The cathode N of a power supply module 14 is commonly connected to by patchcord and electrical connector14
On.
In another optional embodiment, as illustrated in fig. 4 c, pressure sensor 10 is multiple, and wireless sending module 11 is
One, and power supply module 14 is one.Multiple pressure sensors 10 are electrically connected on the wireless sending module 11, this is wireless hair
It send module 11 and power supply module 14 is one-to-one is electrically connected.Wherein, wireless sending module 11 has multiple signal ends multiple to connect
Pressure sensor 10, and then cost can be reduced, and make fault detection system more light weight portable.In this embodiment,
The circuit connection of detection device D1 can be as shown in figure 4d.In figure 4d by taking two pressure sensors 10 as an example, two pressure sensings
The signal end S of device 1010Upper multiple signal end S with same wireless sending module 11 respectively11One-to-one connection；Two pressures
The positive P of force snesor 1010It is commonly connected to the positive P of a wireless sending module 1111On, and pass through the wireless transmission mould
The positive P of block 1111It is connected to the positive P of a power supply module 1414；The ground terminal GND of two pressure sensors 1010Common connection
To the ground terminal GND of a wireless sending module 1111, and the ground terminal GND of the wireless sending module 1111By patchcord and electrically
Connector is commonly connected to the cathode N of a power supply module 1414On.Above-mentioned three kinds of embodiments are the more excellent implementation of the application reality
Mode can be selected, the embodiment of the present application is not limited in practice according to measurement demand.
During use, pressure sensor can be used for detecting braking the fault detection system of above-mentioned motor vehicle braking system
The corresponding valve member of any gas circuit to be detected in system, including：Drier, loop protection valve, main brake valve, braking valve for vehicle,
Trailer braking valve or relay valve etc..Correspondingly, pressure sensor can be placed in the corresponding test position of above-mentioned valve member, such as：
It is placed on the interface of braking gas receiver after being connected in the detector of drier, loop protection valve in braking system, returns
The interface of connection parking braking gas receiver, circuit in the interface for connecting preceding braking gas receiver in valve, loop protection valve is protected to protect in road
After protecting in the interface of connection auxiliary gas receiver in valve, the return contacts of the front brake circuit in main brake valve, main brake valve
Return contacts, braking valve for vehicle control mouth, trailer braking protection valve control valve control mouth and/or the relay valve control mouth of brake circuit.When
So, above-mentioned test position is only used for for example, the fault detection system of motor vehicle braking system provided in this embodiment also can be used
In other possible valve members of detection.
It will be in conjunction with Fig. 5, with a specific embodiment to the fault detection system based on above-mentioned braking system with lower part
Fault detection method is illustrated.It should be appreciated that when executing following methods, it can first ensure that pressure sensor is detected accordingly
At position.
Fig. 5 is the method flow diagram of the fault detection method for the motor vehicle braking system that one embodiment of the application provides, such as Fig. 5
Shown, executive agent can be host computer, and this method includes：
Whether step 501, detection pressure sensor and wireless sending module are in the working condition after being powered.
Step 502 instructs if it has, then being transmitted and received to wireless receiving module, so that the wireless receiving module receives
The pressure signal that the wireless sending module is sent；The pressure signal is pressure sensor to accordingly being waited in motor vehicle braking system
Detection valve member carries out signal acquisition and obtains and sent out by the wireless sending module.
Step 503, the pressure signal received according to the wireless receiving module carry out failure to corresponding valve member to be detected
Analysis.
In step 501, in fault detection system, between pressure sensor and wireless sending module and power supply module
For can break-make connection, when not entering working condition, pressure sensor and wireless sending module are off-position, to save energy consumption.
Before obtaining pressure signal, pressure sensor can be placed on to the correspondence test position of valve member to be detected, and can be detected in advance
Whether pressure sensor and wireless sending module are in running order.
In one case, the pressure characteristic that multiple valve members need to be detected simultaneously, to compare and analyze.In such case
Under, multiple pressure sensors can be detected respectively with corresponding wireless sending module whether all in working condition.
In step 502, however, it is determined that pressure sensor and wireless sending module are in running order, then can control and wirelessly connect
Module is received to start to receive pressure signal.Optionally, after wireless sending module receives pressure signal, the transmission that can be set is all
Collected pressure signal is sent to host computer by the phase.
In step 503, optionally, after host computer gets pressure signal, the pressure can be shown by display sub-module
The signal waveform of signal, in order to which user carries out failure according to the corresponding waveform variation of pressure signal to corresponding valve member to be detected
Analysis.In the prior art, pressure gauge and wired pressure sensor can only obtain discrete pressure signal, can not intuitively find out
The variation tendency of pressure characteristic.Compared with the existing technology, the present embodiment can show the change of pressure characteristic with continuous signal waveform
Change trend is conducive to the accuracy for promoting fault detect.
Optionally, in the present embodiment, the pressure signal got each time can also be preserved.In turn, in step
After 503, it may also include following step：In response to pressure signal playback request, the pressure signal preserved is played back.In turn,
User can play back the pressure signal of Historic preservation, to summarize or comparative analysis.
In addition, in some flows of description in above-described embodiment and attached drawing, contains and occur according to particular order
Multiple operations, but it should be clearly understood that these operations can not execute or parallel according to its sequence what appears in this article
It executes, the serial number such as 501,502 etc. of operation is only used for distinguishing each different operation, serial number itself does not represent any
Execute sequence.In addition, these flows may include more or fewer operations, and these operations can execute in order or
It is parallel to execute.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, the present invention can be used in one or more wherein include computer usable program code computer
The computer program production implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
In a typical configuration, computing device includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include computer-readable medium in volatile memory, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology realizes information storage.Information can be computer-readable instruction, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase transition internal memory (PRAM), static RAM (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), fast flash memory bank or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storages, magnetic tape cassette, tape magnetic disk storage or other magnetic storage apparatus
Or any other non-transmission medium, it can be used for storage and can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as data-signal and carrier wave of modulation.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Including so that process, method, commodity or equipment including a series of elements include not only those elements, but also wrap
Include other elements that are not explicitly listed, or further include for this process, method, commodity or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that wanted including described
There is also other identical elements in the process of element, method, commodity or equipment.
Example the above is only the implementation of the present invention is not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should be included within scope of the presently claimed invention.
Claims (9)
1. a kind of fault detection system for motor vehicle braking system, which is characterized in that including：Detection device and reception dress
It sets；
The detection device includes：Each valve member to be detected in the motor vehicle braking system can be fixed on and correspond to inspection positions
Pressure sensor, wireless sending module and power supply module；Wherein, the signal end of the pressure sensor is electrically connected to the nothing
The signal end of line sending module；The anode of the positive and described wireless sending module of the pressure sensor is electrically connected to described
The anode of power supply module；The ground terminal of the pressure sensor is connected to the ground terminal of the wireless sending module, and the wireless hair
Send the ground terminal of module can break-make connection by plug-in between patchcord and electrical connector and the cathode of the power supply module；
The reception device includes：The wireless receiving module and host computer being wirelessly connected with the wireless sending module；
Wherein, the pressure sensor, the pressure signal for acquiring corresponding valve member to be detected；
The wireless sending module, for the collected pressure signal of the pressure sensor to be sent to the wireless receiving mould
Block；
The wireless receiving module, for receiving pressure signal that the wireless sending module is sent and being sent to described upper
Machine；
The host computer, the pressure signal sent for receiving the wireless receiving module, with to corresponding valve member to be detected into
Row accident analysis.
2. system according to claim 1, which is characterized in that the host computer includes：Control submodule；
The control submodule is used for, and the work shape after being powered is in the pressure sensor and the wireless sending module
When, it transmits and receives and instructs to the wireless receiving module, so that the wireless receiving module receives the wireless sending module hair
The pressure signal sent.
3. system according to claim 2, which is characterized in that the host computer further includes：Display sub-module and storage
Submodule；
Wherein, the display sub-module, for showing that the wireless receiving module continuously transmits the signal wave of the pressure signal come
Shape；
The sub-module stored, for being stored in the pressure that wireless receiving module described in process fault detection is sent each time
The pressure signal that signal or playback have preserved.
4. system according to claim 1, which is characterized in that the wireless sending module includes:Acquire submodule and
The sending submodule being electrically connected with the acquisition submodule；
Wherein, the acquisition submodule is for acquiring the pressure signal that the pressure sensor detects, and by collected pressure
Force signal is sent to the sending submodule；
The sending submodule is used to the pressure signal that the acquisition submodule is sent being sent to the wireless receiving module.
5. system according to claim 1, which is characterized in that the number of the pressure sensor and the wireless sending module
Measure identical, and one-to-one electrical connection；Or,
The wireless sending module is one, and each pressure sensor is electrically connected with the wireless sending module.
6. system according to any one of claims 1-5, which is characterized in that the wireless receiving module is connect by USB
Line and the upper mechatronics.
7. a kind of failure suitable for the fault detection system for motor vehicle braking system described in any one of claim 1-6
Detection method, which is characterized in that including：
It detects pressure sensor and whether wireless sending module is in the working condition after being powered；
It is instructed if it has, then being transmitted and received to wireless receiving module, so that the wireless receiving module receives the wireless transmission
The pressure signal that module is sent；The pressure signal carries out corresponding valve member to be detected in motor vehicle braking system by pressure sensor
Signal acquisition is obtained and is sent out by the wireless sending module；
The pressure signal received according to the wireless receiving module carries out accident analysis to corresponding valve member to be detected.
8. the method according to the description of claim 7 is characterized in that the pressure signal received according to the wireless receiving module
Accident analysis is carried out to corresponding valve member to be detected, including：
It shows the signal waveform for the pressure signal that the wireless receiving module continuously receives or is stored in fault detect each time
The pressure signal that the wireless receiving module receives in the process, so that user carries out accident analysis to corresponding valve member to be detected.
9. method according to claim 7 or 8, which is characterized in that further include：
In response to pressure signal playback request, the pressure signal preserved is played back.
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