CN202443331U - Fault detector for electric control system of engineering vehicle - Google Patents

Fault detector for electric control system of engineering vehicle Download PDF

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Publication number
CN202443331U
CN202443331U CN201220089032XU CN201220089032U CN202443331U CN 202443331 U CN202443331 U CN 202443331U CN 201220089032X U CN201220089032X U CN 201220089032XU CN 201220089032 U CN201220089032 U CN 201220089032U CN 202443331 U CN202443331 U CN 202443331U
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module
sensor signal
cable
voltage
signal
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CN201220089032XU
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王立勇
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Beijing Information Science and Technology University
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Beijing Information Science and Technology University
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Abstract

The utility model relates to a fault detector for an electric control system of an engineering vehicle. The fault detector comprises a cable detection unit and a control cable detection unit, wherein the cable detection unit comprises an analog sensor signal module, the input end of the analog sensor signal module is connected with a switch and is powered up through a power supply, and the input end of the power supply is connected with a charging interface and an electric quantity indicator lamp; the output end of the analog sensor signal module is connected with a wall penetrating interface or five interface modules, when the wall penetrating interface is connected, through a sensor signal cable in a driving cab, which is connected with the wall penetrating interface on a true vehicle, an analog true vehicle sensor signal is input into a vehicle-mounted computer to display a fault of the sensor signal cable; when five interface modules are connected, through each sensor cable in a power bin, the wall penetrating interface on the true vehicle and the sensor signal cable in the driving cab, the analog true vehicle sensor signal is transmitted into the vehicle-mounted computer to display the fault of each sensor cable in the power bin. The fault detector, provided by the utility model, can be widely applied to cable fault detection of all kinds of engineering vehicles and engineering mechanical drive electric control systems.

Description

The automatically controlled system failure detection device of a kind of engineering truck
Technical field
The utility model relates to a kind of pick-up unit, particularly about the automatically controlled system failure detection device of a kind of portable engineering truck.
Background technology
In recent years; The engineering truck wheel box level of IT application improves year by year, and gearbox gear-shift control changes circuit control into by Purely mechanical gradually, in the wheel box electric-control system; Cable is important ingredient; When electric-control system went wrong, how fast detecting trouble location and fault type were the important contents of real vehicle maintenance support.
At present, carry out the automatically controlled system failure detection of engineering truck and mainly have following problem: the first, real vehicle electric-control system cable is connecting piggyback pod, driving cabin and crew module; Length is longer; Vehicle-mounted state measurement is inconvenience very, need cable be pulled down from vehicle, and cable is fixed in the car body often; Dismounting is inconvenience very, and cause secondary to damage easily; The second, cable detection mainly utilizes simple break-make equipment such as multimeter to detect, and this process is more loaded down with trivial details, and workload is bigger, need expend more detection time, brings inconvenience to practical operation; The 3rd, cable is a signal connecting apparatus, and failure cause maybe be relevant with sensor or controller, and a detection streamer often can not be found failure cause, causes the working time waste, need carry out failure cause again and detect.
Summary of the invention
To the problems referred to above, the purpose of the utility model provide a kind of easy to use, can improve the vehicle mounted failure detection efficiency, and can improve the automatically controlled system failure detection device of engineering truck of detection accuracy.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: the automatically controlled system failure detection device of a kind of engineering truck; Be based in the piggyback pod of engineering truck the sensor signal cable in each sensor cable to be measured, the driving cabin, truck-mounted computer and control signal cable and realize fault detect; It is characterized in that: it comprises the cable detection unit that is used for detecting each sensor cable of said piggyback pod and sensor signal cable fault, and the umbilical cable detecting unit that is used for detecting said driving cabin truck-mounted computer outgoing side umbilical cable fault; Said cable detection unit comprises analog sensor signal module, switch, power supply, charging inlet, electric weight pilot lamp, joint through walls and five joint modules; The input end of said analog sensor signal module connects said switch, and said analog sensor signal module is supplied power by said power supply, and the input end of said power supply connects said charging inlet and electric weight pilot lamp; Said analog sensor signal module output terminal connects said joint through walls or said five joint modules; When connecting said joint through walls; Said analog sensor signal module is connected the sensor signal cable in the said driving cabin through said joint through walls with joint through walls on the real vehicle successively, will simulate the real vehicle sensor signal and import and demonstrate the sensor signal cable fault in the said truck-mounted computer; When connecting said five joint modules; Said analog sensor signal module is joint through walls on each sensor cable, the real vehicle and the sensor signal cable in the driving cabin in said five joint modules, piggyback pod successively; To simulate the real vehicle sensor signal and transfer to said truck-mounted computer, demonstrate each sensor cable fault in the piggyback pod.
Said umbilical cable detecting unit comprises control signal joint module, processing module, status indicator lamp and joint through walls; The DC voltage control signal of said truck-mounted computer output is another joint through walls on said control signal cable, real vehicle, control signal output cable and the joint module in the piggyback pod successively; Transfer in the said control signal processing module; Control signal is nursed one's health into the stable state d. c. voltage signal and is sent to said status indicator lamp, show by said status indicator lamp and judge control signal output cable fault in the said piggyback pod; The control signal of said truck-mounted computer output is joint through walls on said control signal cable, real vehicle and joint through walls successively, transfers in the said control signal processing module.
Said analog sensor signal module comprises signals of rotational speed sensor generation module, pressure sensor signal generation module, flow sensor signal generation module, temperature sensor signal generation module, alarm sensor signal generation module and 5V power module, and said 5V power module is each module for power supply.
Said signals of rotational speed sensor generation module comprises square-wave signal generation module, square-wave signal boost module and square wave frequency adjustment module; Said square-wave signal generation module changes the voltage signal of said 5V power module input into the square-wave signal of output signal frequency circulation change; By said square-wave signal boost module import in the said square wave frequency adjustment module handle after, generate signals of rotational speed sensor.
Said pressure sensor signal generation module comprises Voltage stabilizing module, DC voltage boost module and voltage magnitude adjustment module; The voltage signal of said 5V power module output is successively after said Voltage stabilizing module and DC voltage boost module boost; After importing the interior processing of said voltage magnitude adjustment module, generate pressure sensor signal.
Said flow sensor signal generation module comprises that Voltage stabilizing module, voltage isolation keep module and current value adjustment module; The voltage signal of said 5V power module output is successively after said Voltage stabilizing module and the isolation of voltage isolation maintenance module; Import said current value adjustment module, generate flow sensor signal; Said current value adjustment module adopts the normal voltage series resistor to realize.
Said temperature sensor signal generation module comprises adjustable resistance module, resistance value compensation module and resistance value size adjustment module; The voltage signal of said 5V power module output is successively after said adjustable resistance module and resistance value compensation module transfer resistance signal to; Import in the said resistance value size adjustment module, generate temperature sensor signal; Said resistance value compensation module adopts serial connection fixed value resistance to realize.
Said alarm sensor signal generation module comprises that DC voltage boost module, voltage isolation keep module and voltage break-make control module; The voltage signal of said 5V power module output after said DC voltage boost module and the isolation of voltage isolation maintenance module, is imported said voltage break-make control module and is produced the alarm sensor signal successively.
The utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model is because employing is connected the real vehicle cable with former car sensor cable universal joint; Utilize analog sensor signal module output analog sensor signal; Observe transformable sensor signal state through truck-mounted computer, the installment state of former car cable does not change when having guaranteed to detect, and easy to use.2, the utility model is owing to adopt status indicator lamp intuitively to show the control output signal of electric-control system, and the troublesome operation that reduced data reads has guaranteed the simplicity and the intuitive of operating.3, the utility model is owing to adopt general jointing with joint through walls that piggyback pod is connected with driving cabin, but the segment failure of Rapid Realization cable signal detects and realization localization of fault.4, the utility model adopts built-in power for the analog sensor signal module work electric weight to be provided, and is furnished with the electric weight pilot lamp, has guaranteed the continuation and the portability of working under the checkout equipment lowered in field environment.5, the utility model makes things convenient for personnel operation owing to adopt status indicator lamp to show testing result, has simplified the use difficulty of equipment, has guaranteed that simple to operate, result comes into plain view.6, the utility model is owing to adopt the various sensor signals of analog sensor signal module simulation real vehicle, and under the idle situation of real vehicle, realization that can be convenient and safe detects each sensor cable of real vehicle like this, and it detects accurately and reliably.Therefore the utility model can be widely used in the cable fault detection of various engineering trucks, engineering machinery transmission electric-control system.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model;
Fig. 2 is the analog sensor signal modular structure synoptic diagram of the utility model;
Fig. 3 is the detection procedure synoptic diagram of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
As shown in Figure 1, the automatically controlled system failure detection device of the engineering truck of the utility model is based in the piggyback pod 1 of engineering truck in the prior art sensor signal cable 3, truck-mounted computer 4 and the control signal cable 5 in each sensor cable to be measured, the driving cabin 2 and accomplishes fault detect.The automatically controlled system failure detection device of the engineering truck of the utility model comprises the cable detection unit 6 that is used for detecting piggyback pod 1 each sensor cable and sensor signal cable 3 faults, and the umbilical cable detecting unit 7 that is used for detecting driving cabin 2 truck-mounted computers 4 outgoing side umbilical cable faults.
Cable detection unit 6 comprises an analog sensor signal module 8, a switch 9, a power supply 10, a charging inlet 11, an electric weight pilot lamp 12, one joint 13 through walls and five joint modules 14.The input end of analog sensor signal module 8 connects switch 9; By switch 9 its duties of control; And analog sensor signal module 8 is by power supply 10 power supplies, and the input end of power supply 10 is connected with charging inlet 11, and power supply 10 also is connected with the electric weight pilot lamp 12 that is used to show its state of charge; When electric weight was not enough, electric weight pilot lamp 12 utilized charging inlet 11 to charge through flash for prompting.Analog sensor signal module 8 output terminals connect joint 13 through walls and five joint modules 14; Sensor signal when being used to export various simulation real vehicles operation comprises signals of rotational speed sensor, pressure sensor signal, flow sensor signal, temperature sensor signal and alarm sensor signal.The simulation real vehicle sensor signal of analog sensor signal module 8 output can wear long wall joint 13 or five joint modules 14 outputs; Wherein, When wearing long wall joint 13 outputs; Analog sensor signal module 8 wall joint 13 that wears long successively is connected the sensor signal cable 3 in the driving cabin 2 with joint through walls 15 on the real vehicle, will simulate the real vehicle sensor signal and transfer to sensor signal cable 3, and whether demonstrate 3 connections of sensor signal cable through truck-mounted computer 4 normal; When through 14 outputs of five joint modules; Analog sensor signal module 8 is the sensor signal cable 3 in joint through walls 15 on five joint modules 14, piggyback pod 1 medium speed, pressure, flow, temperature and alarm sensor cables, the real vehicle and driving cabin 2 successively; To simulate the real vehicle sensor signal and transfer to truck-mounted computer 4, and demonstrate and detect whether normal each cable under test connects in the piggyback pod 1.
Umbilical cable detecting unit 7 comprises joint module 16, control signal processing module 17, status indicator lamp 18 and joint through walls 19.The DC voltage control signal of truck-mounted computer 4 output is control signal output cable and the joint module 16 in the joint through walls of another on control signal cable 5, real vehicle 20, the piggyback pod 1 successively; Transfer in the control signal processing module 17; Control signal processing module 17 is nursed one's health into the stable state d. c. voltage signal with control signal; And be sent to status indicator lamp 18, judge by status indicator lamp 18 demonstrations directly perceived whether normal the control signal output cable connects in the piggyback pod 1.Whether the control signal of truck-mounted computer 4 outputs is joint through walls 20 on control signal cable 5, real vehicle and joint through walls 19 successively, transfer in the control signal processing module 17, and connect normal by status indicator lamp 18 display control signal cables 5.
Wherein, when status indicator lamp 18 was shown in green, the output of expression control signal cable 5 control signals was normal, and when shown in red, the voltage signal of expression control signal cable 5 control outputs is unusual.
In the foregoing description; As shown in Figure 2; Analog sensor signal module 8 comprises signals of rotational speed sensor generation module 81, pressure sensor signal generation module 82, flow sensor signal generation module 83, temperature sensor signal generation module 84, alarm sensor signal generation module 85 and 5V power module 86, and 5V power module 86 is above-mentioned each module for power supply.
Wherein, Signals of rotational speed sensor generation module 81 comprises square-wave signal generation module 811, square-wave signal boost module 812 and square wave frequency adjustment module 813; Square-wave signal generation module 811 changes the voltage signal of 5V power module 86 inputs into the square-wave signal of the continuous circulation change of output signal frequency; After handling in the square-wave signal boost module 812 input square wave frequency adjustment modules 813, generate signals of rotational speed sensor.
Pressure sensor signal generation module 82 comprises Voltage stabilizing module 821, DC voltage boost module 822 and voltage magnitude adjustment module 823; The voltage signal of 5V power module 86 outputs is successively after Voltage stabilizing module 821 and DC voltage boost module 822 boost; After handling in the input voltage amplitude adjustment module 823, generate pressure sensor signal.
Flow sensor signal generation module 83 comprises that Voltage stabilizing module 831, voltage isolation keep module 832 and current value adjustment module 833; The voltage signal of 5V power module 86 outputs is successively after Voltage stabilizing module 831 and voltage isolation keep module 832 to isolate; Input current value adjustment module 833 generates the flow sensor signal that the current value adjustable size saves.Wherein, current value adjustment module 833 adopts the normal voltage series resistor to realize, can realize the adjusting of size of current through the adjustment resistance sizes.
Temperature sensor signal generation module 84 comprises adjustable resistance module 841, resistance value compensation module 842 and resistance value size adjustment module 843; The voltage signal of 5V power module 86 outputs is successively after transferring resistance signal to after adjustable resistance module 841 and the resistance value compensation module 842; In the input resistance value size adjustment module 843, generate temperature sensor signal.Wherein, resistance value compensation module 842 adopts serial connection fixed value resistance to realize, carries out the resistance value compensation processing so that the temperature of resistance is floated effect.
Alarm sensor signal generation module 85 comprises that DC voltage boost module 851, voltage isolation keep module 852 and voltage break-make control module 853; The voltage signal of 5V power module 86 outputs is successively after DC voltage boost module 851 and voltage isolation keep module 852 to isolate; Input to voltage break-make control module 853 and produce switching signal, i.e. alarm sensor signal.
Among above-mentioned each embodiment; Joint 13 through walls adopts general jointing in the prior art with joint 19 through walls; Its effect is to connect piggyback pod cable and driving cabin cable; The both sides of the automatically controlled system failure detection device of engineering truck that joint 13 through walls and joint 19 through walls are separately positioned on the utility model; These two joints 13,19 through walls and real vehicle joint through walls 15,20 is consistent, has guaranteed like this in process fault detection, can the automatically controlled system failure detection device of driving cabin cable and the engineering truck of the utility model directly be connected.
Among above-mentioned each embodiment; The joint module 14 that is connected with each sensor cable in the piggyback pod is all in full accord with the sensor connector socket with joint module 16, thereby guarantees that former car sensor cable can directly be connected with the automatically controlled system failure detection device of the engineering truck of the utility model.
As shown in Figure 3, on the basis of the automatically controlled system failure detection device of engineering truck, the automatically controlled system failure detection detection method of the engineering truck of the utility model may further comprise the steps:
1) connects each sensor cable and control signal cable in the piggyback pod 1 according to the automatically controlled system failure detection device of engineering truck joint sign;
2) whether open switch 9, start the automatically controlled system failure detection device of engineering truck, it is normal to observe electric weight pilot lamp 12, if electric weight pilot lamp 12 does not work or is in blink states, then charges; If normally then continue operation;
3) whether the demonstration of observation truck-mounted computer 4 upper sensor states is normal, if show normally, explains that then sensor cable is normal in the automatically controlled system of engineering truck; If undesired, then the automatically controlled system failure detection device of engineering truck is broken off from sensor, change to joint through walls 13 places; Its sensor cable with driving cabin 2 is connected; The sensor states of observing once more in the truck-mounted computer 4 shows, if show that sensor signal is normal, then proves piggyback pod 1 sensor signal cable fault; If show that sensor states is undesired, driving cabin 2 sensor signal cable faults then be described;
4) carry out the Vehicular shift operation, the state of observation state pilot lamp 18 contrasts the led status function declaration successively and judges whether each grade status indicator lamp 18 shows normal; If normally explain that then the electric control system controls signal cable is normal, undesired if status indicator lamp 18 shows, then automatically controlled system failure detection device of engineering truck and piggyback pod 1 control signal cable are broken off; Moving to driving cabin 2 is connected with driving cabin control signal cable 5; Carry out gear-change operation once more, observe under each grade state status indicator lamp 18 show whether normal, if normal; Piggyback pod 1 control signal cable fault then is described, if the undesired driving cabin 2 control signal cable faults of then explaining.
Above-mentioned each embodiment only is used to explain the utility model; The structure of each parts and connected mode all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of the connection and the structure of individual component being carried out according to the utility model principle all should not got rid of outside the protection domain of the utility model.

Claims (8)

1. automatically controlled system failure detection device of engineering truck; Be based in the piggyback pod of engineering truck the sensor signal cable in each sensor cable to be measured, the driving cabin, truck-mounted computer and control signal cable and realize fault detect; It is characterized in that: it comprises the cable detection unit that is used for detecting each sensor cable of said piggyback pod and sensor signal cable fault, and the umbilical cable detecting unit that is used for detecting said driving cabin truck-mounted computer outgoing side umbilical cable fault;
Said cable detection unit comprises analog sensor signal module, switch, power supply, charging inlet, electric weight pilot lamp, joint through walls and five joint modules; The input end of said analog sensor signal module connects said switch, and said analog sensor signal module is supplied power by said power supply, and the input end of said power supply connects said charging inlet and electric weight pilot lamp; Said analog sensor signal module output terminal connects said joint through walls or said five joint modules; When connecting said joint through walls; Said analog sensor signal module is connected the sensor signal cable in the said driving cabin through said joint through walls with joint through walls on the real vehicle successively, will simulate the real vehicle sensor signal and import and demonstrate the sensor signal cable fault in the said truck-mounted computer; When connecting said five joint modules; Said analog sensor signal module is joint through walls on each sensor cable, the real vehicle and the sensor signal cable in the driving cabin in said five joint modules, piggyback pod successively; To simulate the real vehicle sensor signal and transfer to said truck-mounted computer, demonstrate each sensor cable fault in the piggyback pod.
2. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 1; It is characterized in that: said umbilical cable detecting unit comprises control signal joint module, processing module, status indicator lamp and joint through walls; The DC voltage control signal of said truck-mounted computer output is another joint through walls on said control signal cable, real vehicle, control signal output cable and the joint module in the piggyback pod successively; Transfer in the said control signal processing module; Control signal is nursed one's health into the stable state d. c. voltage signal and is sent to said status indicator lamp, show by said status indicator lamp and judge control signal output cable fault in the said piggyback pod; The control signal of said truck-mounted computer output is joint through walls on said control signal cable, real vehicle and joint through walls successively, transfers in the said control signal processing module.
3. according to claim 1 or claim 2 the automatically controlled system failure detection device of a kind of engineering truck; It is characterized in that: said analog sensor signal module comprises signals of rotational speed sensor generation module, pressure sensor signal generation module, flow sensor signal generation module, temperature sensor signal generation module, alarm sensor signal generation module and 5V power module, and said 5V power module is each module for power supply.
4. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 3; It is characterized in that: said signals of rotational speed sensor generation module comprises square-wave signal generation module, square-wave signal boost module and square wave frequency adjustment module; Said square-wave signal generation module changes the voltage signal of said 5V power module input into the square-wave signal of output signal frequency circulation change; By said square-wave signal boost module import in the said square wave frequency adjustment module handle after, generate signals of rotational speed sensor.
5. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 3; It is characterized in that: said pressure sensor signal generation module comprises Voltage stabilizing module, DC voltage boost module and voltage magnitude adjustment module; The voltage signal of said 5V power module output is successively after said Voltage stabilizing module and DC voltage boost module boost; After importing the interior processing of said voltage magnitude adjustment module, generate pressure sensor signal.
6. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 3; It is characterized in that: said flow sensor signal generation module comprises that Voltage stabilizing module, voltage isolation keep module and current value adjustment module; The voltage signal of said 5V power module output is successively after said Voltage stabilizing module and the isolation of voltage isolation maintenance module; Import said current value adjustment module, generate flow sensor signal; Said current value adjustment module adopts the normal voltage series resistor to realize.
7. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 3; It is characterized in that: said temperature sensor signal generation module comprises adjustable resistance module, resistance value compensation module and resistance value size adjustment module; The voltage signal of said 5V power module output is successively after said adjustable resistance module and resistance value compensation module transfer resistance signal to; Import in the said resistance value size adjustment module, generate temperature sensor signal; Said resistance value compensation module adopts serial connection fixed value resistance to realize.
8. the automatically controlled system failure detection device of a kind of engineering truck as claimed in claim 3; It is characterized in that: said alarm sensor signal generation module comprises that DC voltage boost module, voltage isolation keep module and voltage break-make control module; The voltage signal of said 5V power module output after said DC voltage boost module and the isolation of voltage isolation maintenance module, is imported said voltage break-make control module and is produced the alarm sensor signal successively.
CN201220089032XU 2012-03-09 2012-03-09 Fault detector for electric control system of engineering vehicle Expired - Fee Related CN202443331U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591330A (en) * 2012-03-09 2012-07-18 北京信息科技大学 Fault detection system and method for electronic system of engineering vehicle
CN103744414A (en) * 2013-12-16 2014-04-23 北京交控科技有限公司 Test method and test device
CN103823134A (en) * 2014-02-14 2014-05-28 广东威创视讯科技股份有限公司 Electronic device detecting system and method
CN106126924A (en) * 2016-06-24 2016-11-16 北京理工大学 A kind of comprehensive performance evaluation method of panzer piggyback pod
CN109581147A (en) * 2017-09-29 2019-04-05 利萨·德雷克塞迈尔有限责任公司 Pass through the detection device and detection method of Constant current source sense vehicle data cable
CN111882697A (en) * 2020-07-31 2020-11-03 中国汽车工程研究院股份有限公司 Probability mutation rule-based voltage abnormal single body identification algorithm

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102591330A (en) * 2012-03-09 2012-07-18 北京信息科技大学 Fault detection system and method for electronic system of engineering vehicle
CN103744414A (en) * 2013-12-16 2014-04-23 北京交控科技有限公司 Test method and test device
CN103823134A (en) * 2014-02-14 2014-05-28 广东威创视讯科技股份有限公司 Electronic device detecting system and method
CN103823134B (en) * 2014-02-14 2016-05-18 广东威创视讯科技股份有限公司 Electronic device detection system and method
CN106126924A (en) * 2016-06-24 2016-11-16 北京理工大学 A kind of comprehensive performance evaluation method of panzer piggyback pod
CN106126924B (en) * 2016-06-24 2019-03-26 北京理工大学 A kind of comprehensive performance evaluation method of panzer piggyback pod
CN109581147A (en) * 2017-09-29 2019-04-05 利萨·德雷克塞迈尔有限责任公司 Pass through the detection device and detection method of Constant current source sense vehicle data cable
CN109581147B (en) * 2017-09-29 2022-09-16 利萨·德雷克塞迈尔有限责任公司 Detection device and detection method for detecting motor vehicle data cable through constant current source
CN111882697A (en) * 2020-07-31 2020-11-03 中国汽车工程研究院股份有限公司 Probability mutation rule-based voltage abnormal single body identification algorithm

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