CN211478955U - Engine wire harness detection device applied to coating process - Google Patents
Engine wire harness detection device applied to coating process Download PDFInfo
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- CN211478955U CN211478955U CN202020391494.1U CN202020391494U CN211478955U CN 211478955 U CN211478955 U CN 211478955U CN 202020391494 U CN202020391494 U CN 202020391494U CN 211478955 U CN211478955 U CN 211478955U
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Abstract
The utility model relates to an engine wire harness detection device applied in coating process, which comprises a test module, a process wire harness, a general wire harness, a middle wire harness and a quick interface; the process wiring harness is connected with the engine throttle valve wiring harness through a joint; the signal input end of the test module is connected with a general wire harness, the general wire harness is connected with an engine wire harness through a middle wire harness and a quick connector, and the output end of the general wire harness is connected with a test control computer; the EGR valve of the engine is communicated with the measurement and control computer through the CAN bus communication module. The utility model discloses can overcome the engine pencil and can't ensure the problem whether target in place of its installation after reinstallating, the means detects conveniently, can overcome the pencil and intake the quality hidden danger at the application cleaning process, eliminates application process pencil paint flying appearance quality problem and pencil and shelter from to other spare parts and arouse the not good problem of effect of spraying paint to can reduce application process pencil and wrap, go to wrap personnel special work personnel and drop into.
Description
Technical Field
The utility model belongs to the technical field of the coating technology, a engine pencil detection device who uses in the coating technology is related to.
Background
In the engine industry, engine wiring harnesses are all in an installed state during the coating process. The general coating process method is to wrap the wire harness before coating and to remove the wire harness after coating.
The existing coating process needs to wrap and remove a wire harness, and a large amount of special work (painters) needs to be invested; the wire harness has water inlet hidden trouble in the coating and cleaning process; the pencil shelters from other spare parts and influences self and sheltered from spare part paint spraying effect.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an engine pencil detection device who uses in the coating technology, the device can detect whether unusual after the engine pencil is reinstalled.
In order to solve the technical problem, the engine wire harness detection device applied in the coating process of the utility model comprises a test module, a process wire harness, a general wire harness, a middle wire harness and a quick interface; the process wiring harness is connected with the engine throttle valve wiring harness through a joint; the signal input end of the test module is connected with a general wire harness, the general wire harness is connected with an engine wire harness through a middle wire harness and a quick connector, and the output end of the general wire harness is connected with a test control computer; the EGR valve of the engine is communicated with the measurement and control computer through the CAN bus communication module.
Furthermore, the utility model also comprises a voltage-stabilized power supply and a process ECU; the process wire harness is respectively connected with the process ECU, the stabilized voltage power supply and the CAN bus communication module through joints; the process ECU communicates with the measurement and control computer through a CAN bus communication module; the stabilized voltage power supply supplies power to the process ECU, the test module and the EGR valve.
The test module, the stabilized voltage power supply and the process ECU are arranged in the test control cabinet.
The test module comprises a thermistor detection module, a thermal resistance detection module and a voltage detection module; the detection signal input ends of the thermistor detection module, the thermal resistor detection module and the voltage detection module are connected with an engine wiring harness, and the output ends of the thermistor detection module, the thermal resistor detection module and the voltage detection module are connected with a measurement and control computer.
The test module also comprises a relay module; and the relay module respectively controls the on-off of the engine sensor, the process ECU and the EGR valve.
And each channel of the thermistor detection module is respectively and correspondingly connected with a water temperature sensor, a Venturi temperature sensor, an air inlet temperature and pressure sensor and an oil pump metering valve.
The test module comprises two thermal resistance detection modules; each channel of the first thermal resistance detection module is correspondingly connected with each cylinder oil injector; and each channel of the second thermal resistance detection module is correspondingly connected with the brake valve, the oil pump metering valve and the waste gas discharge control valve.
And each channel of the voltage detection module is correspondingly connected with a rail pressure sensor, an oil pressure sensor and a CRANK/CAM sensor.
Each channel of the first relay module is correspondingly connected in a loop where an EGR valve powered by a 24V power supply is located, and power on and power off of a process ECU and the 24V power supply of the EGR valve are controlled; each channel of the second relay module is correspondingly connected in a loop where a CRANK/CAM sensor, each pressure sensor and a differential pressure sensor which are powered by a 5V power supply are located, and the power on and power off of the sensor which needs 5V power supply are controlled; and each channel of the third relay module is correspondingly connected in a circuit connected with a switch contact of the floor chain PLC, so that on-off control of the alarm contact is provided.
Has the advantages that:
the utility model discloses can overcome the engine pencil and can't ensure the problem whether target in place of its installation after reinstallating, the means detects conveniently, can overcome the pencil and intake the quality hidden danger at the application cleaning process, eliminates application process pencil paint flying appearance quality problem and pencil and shelter from to other spare parts and arouse the not good problem of effect of spraying paint to can reduce application process pencil and wrap, go to wrap personnel special work (painter) personnel and drop into.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the present invention connected to a diesel engine.
Detailed Description
As shown in fig. 1 and 2, the engine harness detection device applied in the coating process of the utility model comprises a measurement and control cabinet 1, a process harness 2, a general harness 3, a middle harness 4, a quick interface 5, a process ECU and a CAN bus communication module; the test module, the stabilized voltage supply and the process ECU are arranged in the test control cabinet 1; one end of the process wiring harness 2 is connected with the process ECU through a joint, and the other end of the process wiring harness is connected with a voltage-stabilized power supply, a CAN bus communication module and an engine throttle wiring harness; the signal input end of the test module is connected with a universal wiring harness 3, the universal wiring harness 3 is connected with an engine wiring harness through a middle wiring harness 4 and a quick connector 5, and the output end of the universal wiring harness is connected with a test control computer; the electronic throttle valve is controlled by the process ECU, and the EGR valve and the process ECU are communicated with a computer through a CAN bus communication module; the voltage-stabilized power supply provides 24V direct current for the process ECU and the test module, provides 24V direct current for the EGR valve, and provides 5V direct current for the voltage type sensor.
The test module 11 comprises a thermistor detection module with 8 channels, two thermal resistance detection modules with 6 channels, a voltage detection module with 10 channels and 3 relay modules with 8 channels; each module is a commercially available product.
The detection signal input ends of the thermistor detection module, each thermal resistor detection module and the voltage detection module are connected with an engine wiring harness, and the output ends of the thermistor detection module, each thermal resistor detection module and each voltage detection module are connected with a measurement and control computer; and each relay module respectively controls the power on and power off and alarm output of the engine sensor, the process ECU and the EGR valve.
And each channel of the thermistor detection module is respectively and correspondingly connected with a water temperature sensor, a Venturi temperature sensor and an air inlet temperature and pressure sensor.
Each channel of the first thermal resistance detection module is correspondingly connected with the 6-cylinder oil injector;
each channel of the second thermal resistance detection module is correspondingly connected with a brake valve, an oil pump metering valve and an exhaust gas discharge control valve;
each channel of the voltage detection module is correspondingly connected with a pressure sensor (a rail pressure sensor and an oil pressure sensor) and a Hall rotating speed sensor (a CRANK/CAM sensor in figure 2);
each channel of the first relay module is correspondingly connected in a loop where an EGR valve powered by a 24V power supply is located, and a control end of the first relay module is connected with a process ECU (electronic control Unit) to control the process ECU and the power on and off of the 24V power supply of the EGR valve;
each channel of the second relay module is correspondingly connected with each Hall rotating speed sensor powered by a 5V power supply, and each pressure sensor and each pressure difference sensor are positioned in a loop to control the power on and off of the sensor powered by 5V;
and each channel of the third relay module is correspondingly connected in a circuit connected with a switch contact of the floor chain PLC, so that on-off control of the alarm contact is provided.
The function of each module in test module 11 is shown in table 1.
TABLE 1
The wiring harness is dismantled before the coating and cleaning of the engine, and the engine wiring harness and the sensor are plugged by adopting special plugging (for water and paint prevention); demolish the shutoff after the application and reinstall corresponding pencil, recycle the utility model discloses a continuity of detection pencil ensures that reinstallation pencil mounted state is good.
The electric control component of the electric control common rail diesel engine with more than four 6DM countries comprises 9 types of 6 sensors and actuators such as a rotating speed sensor, an engine oil pressure sensor, an air inlet pressure temperature sensor, an oil injector electromagnetic valve and the like, and 3 detection wire harnesses (BOSCH nation five, independent nation five and independent nation six). When in detection, the utility model is butted with an engine wire harness, then the functions of each sensor signal and an actuator are tested in sequence, the test module inputs the detection signal into a measurement and control computer, and the measurement and control computer displays and records the corresponding measurement result; the process ECU is used for opening and closing the electronic throttle valve; the overload protection and diagnosis function is provided, the test specification is included, and the functions and signal tests of each sensor and each actuator are carried out; the scanning gun scans and inputs the serial number and the model of the engine into the measurement and control computer, finds out the relevant data limit value corresponding to the model of the diesel engine, and the measurement and control computer compares the measurement result with the relevant data limit value to judge whether the installation state of the installation wire harness is good or not. The comparison and judgment method is the same as the existing detection method for the installation state of the engine wiring harness. The control computer can also control the on-off of the alarm switch according to the qualification or not.
Claims (9)
1. An engine wiring harness detection device applied in a coating process is characterized by comprising a test module, a process wiring harness (2), a general wiring harness (3), a middle wiring harness (4) and a quick interface (5); the process wiring harness (2) is connected with an engine throttle wiring harness through a joint; the signal input end of the test module is connected with a universal wiring harness (3), the universal wiring harness (3) is connected with an engine wiring harness through a middle wiring harness (4) and a quick interface (5), and the output end of the universal wiring harness is connected with a test control computer; the EGR valve of the engine is communicated with the measurement and control computer through the CAN bus communication module.
2. The engine wiring harness detection device applied to the coating process according to claim 1, which is characterized by further comprising a stabilized voltage power supply and a process ECU; the process wire harness (2) is respectively connected with the process ECU, the stabilized voltage power supply and the CAN bus communication module through joints; the process ECU communicates with the measurement and control computer through a CAN bus communication module; the stabilized voltage power supply supplies power to the process ECU, the test module and the EGR valve.
3. The engine wiring harness detection device applied to the coating process according to claim 2, wherein the test module, the stabilized voltage power supply and the process ECU are installed in a test control cabinet (1).
4. The engine wiring harness detection device applied to the coating process according to claim 1 or 2, wherein the test module (11) comprises a thermistor detection module, a thermal resistance detection module and a voltage detection module; the detection signal input ends of the thermistor detection module, the thermal resistor detection module and the voltage detection module are connected with an engine wiring harness, and the output ends of the thermistor detection module, the thermal resistor detection module and the voltage detection module are connected with a measurement and control computer.
5. The engine wiring harness detection device applied to the coating process according to claim 4, wherein the test module (11) further comprises a relay module; and the relay module respectively controls the on-off of the engine sensor, the process ECU and the EGR valve.
6. The device for detecting the engine wiring harness applied to the coating process according to claim 4, wherein each channel of the thermistor detection module is respectively and correspondingly connected with a water temperature sensor, a venturi temperature sensor and an air inlet temperature and pressure sensor.
7. The engine wiring harness detection device applied to the coating process according to claim 4, wherein the test module (11) comprises two thermal resistance detection modules; each channel of the first thermal resistance detection module is correspondingly connected with the 6-cylinder oil injector; and each channel of the second thermal resistance detection module is correspondingly connected with the brake valve, the oil pump metering valve and the waste gas discharge control valve.
8. The engine harness detection device applied to the coating process according to claim 4, wherein each channel of the voltage detection module is correspondingly connected with a rail pressure sensor, an oil pressure sensor and a CRANK/CAM sensor.
9. The engine wire harness detection device applied to the coating process according to claim 5, wherein the test module (11) further comprises 3 relay modules, and each channel of the first relay module is correspondingly connected to a loop where an actuator powered by a 24V power supply is located to control the power on and off of a process ECU and an EGR valve 24V power supply; each channel of the second relay module is correspondingly connected in a loop where a CRANK/CAN sensor, each pressure sensor and a differential pressure sensor which are powered by a 5V power supply are located, and the power on and power off of the sensor which needs 5V power supply are controlled; and each channel of the third relay module is correspondingly connected in a circuit connected with a switch contact of the floor chain PLC, so that on-off control of the alarm contact is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020391494.1U CN211478955U (en) | 2020-03-25 | 2020-03-25 | Engine wire harness detection device applied to coating process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020391494.1U CN211478955U (en) | 2020-03-25 | 2020-03-25 | Engine wire harness detection device applied to coating process |
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| CN211478955U true CN211478955U (en) | 2020-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013948A (en) * | 2021-03-09 | 2021-06-22 | 一汽解放汽车有限公司 | Board carries power supply control circuit |
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2020
- 2020-03-25 CN CN202020391494.1U patent/CN211478955U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013948A (en) * | 2021-03-09 | 2021-06-22 | 一汽解放汽车有限公司 | Board carries power supply control circuit |
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