CN109901558A - A kind of commercial vehicle intelligence engineering diagnostic equipment and its application method - Google Patents
A kind of commercial vehicle intelligence engineering diagnostic equipment and its application method Download PDFInfo
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- CN109901558A CN109901558A CN201910247649.6A CN201910247649A CN109901558A CN 109901558 A CN109901558 A CN 109901558A CN 201910247649 A CN201910247649 A CN 201910247649A CN 109901558 A CN109901558 A CN 109901558A
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Abstract
The invention proposes a kind of commercial vehicle intelligence engineering diagnostic equipments, including vehicle OBD interface, vehicle control device, power module, data transmission communication module, main control module, CAN data communication module, PC or mobile phone host computer.The present invention can support four road physics CAN, support the intelligent scanning of controller, and data is supported to interact by wifi and host computer.In this way, being not only able to adaptation vehicle has the case where multichannel CAN bus, various controller, additionally it is possible to which the development cycle is shortened in the diagnostic design of development controller, the test job for facilitating engineers and technicians highly efficient.
Description
Technical field
The present invention relates to a kind of commercial vehicle intelligence engineering diagnostic equipment and its application methods, belong to vehicle electrically controlling technical field.
Background technique
Vehicle integrated technology just develops towards the direction of electrified, intelligent, net connectionization, lightweight and sharedization.With biography
The vehicle development of system is compared, and new release vehicle functions combination is enriched, kind beautiful jade multiplicity, emerging technology emerge one after another.Meanwhile quotient
With car market competition, along with will implementing for six standard of state, entire industry all accelerates what product was weeded out the old and bring forth the new
Rhythm, this proposes requirements at the higher level to the engineering design technology collaboration of vehicle factor and diagnostic test ability etc..
It the demands such as writes with a brush dipped in Chinese ink to adapt to test, diagnosis, the configuration of existing vehicle and new research and development each electric controller of vehicle, needs to develop
A commercial vehicle intelligence engineering diagnostic equipment supports the various electric controllers of complete set vehicle, can complete to examine the failure of controller
Disconnected, diagnostic test, configuration such as write with a brush dipped in Chinese ink at the functions, and product design personnel is facilitated to carry out the diagnostic design, verifying and test of each controller.
Summary of the invention
It is an object of the invention to: in view of the defects existing in the prior art, propose a kind of commercial vehicle intelligence engineering diagnostic equipment
And its application method, the diagnostic design, verifying and test of each controller are carried out convenient for product design personnel, improve each controller
Product quality promotes the professional ability of engineers and technicians, shortens product development cycle.
In order to reach the goals above, the technical solution of the present invention is as follows: a kind of commercial vehicle intelligence engineering diagnostic equipment, including power supply
Module, data transmission communication module, main control module and CAN data communication module；
The power module is responsible for being powered to other modules, by obtain vehicle OBD interface power supply and carry out pressure stabilizing and
Conversion process gives main controller module, CAN data communication module, data transmission communication module for power supply；
The CAN data communication module passes through CAN bus and vehicle OBD using OBD fault diagnosis international standard protocol
Interface is connected, and is interacted according to the instruction of main control module with control units such as vehicle motor, vehicle body, chassis, speed changer, ABS
Various information；
The data transmission communication module is mainly responsible for and carries out data communication by WIFI and PC or mobile phone host computer；
The main control module is the core of Engineering Diagnosis instrument, is responsible for operating, data processing and the data flow control of diagnostic equipment.
Further, the Engineering Diagnosis instrument also has vehicle OBD interface, interior diagnosis interface, each controller of vehicle, institute
Vehicle OBD interface is stated, car diagnosis interface is connected by CAN bus with each controller of vehicle.
Further, each controller of the vehicle includes at least chassis control unit, control unit of engine, Body Control
Control unit, transmission control unit and ABS control unit.
Further, the CAN data communication module at least support ISO 14230, ISO 15765, ISO14229,
J1939 communications protocol can be communicated according to setting baud rate and address with vehicle control device.
Further, the working principle of the power module are as follows: voltage stabilization part is opened by BUCK-BOOST topological structure
Powered-down source circuit is realized；The on-off of metal-oxide-semiconductor is controlled by PWM wave, to control the voltage that 2 feet of chip U1s export, due to logical
Disconnected frequency is very high, the voltage ripple very little of output, and 5 feet constitute feedback network for sampled output voltage, adjusts PWM with this
Duty ratio, and then adjust output voltage, reach the function of pressure stabilizing；The design parameter can satisfy the need of 9 ~ 36V pressure stabilizing to 5V
It asks.
A kind of application method of commercial vehicle intelligence engineering diagnostic equipment, includes the following steps,
After step 1, the connection vehicle OBD interface power-up initializing of Engineering Diagnosis instrument, data transmission communication module begins listening for upper
The controller link order of machine；
Step 2, after receiving instruction, main control module carries out dissection process to instruction, and the rear CAN data communication module that controls is being propped up
Intelligent scanning communication is carried out on tetra- road CAN of Chi；
Step 3, main control module judge whether connection can be established with controller, if cannot build according to scanning communication condition
Vertical connection, then notification data transmission communication module replys the instruction that host computer can not connect；If communication can be established, data transmission
Communication module replys host computer and connects established instruction, and the controller for monitoring host computer diagnose, tested, writing with a brush dipped in Chinese ink etc. and instructing；
Step 4, after receiving instruction, main control module to diagnostic instruction carry out dissection process, control CAN data communication module give
Vehicle control device sends diagnosis message；
Step 5, after receiving the feedback message of vehicle control device, main control is returned after being handled by data transmission communication module
Again to host computer.
The beneficial effect comprise that the present invention can support four road physics CAN, the intelligent scanning of controller is supported,
Data are supported to interact by wifi and host computer.In this way, being not only able to adapt to vehicle with multichannel CAN bus, a variety of controls
The case where device processed, additionally it is possible to which the diagnostic design of development controller, the test job for facilitating engineers and technicians highly efficient, shortening are opened
Send out the period.
Detailed description of the invention
The present invention will be further described below with reference to the drawings.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is work flow diagram of the invention.
Fig. 3 is power module circuitry figure of the invention.
Fig. 4 is main control module circuit diagram of the invention.
Fig. 5 is CAN data communication module circuit diagram of the invention.
Fig. 6 is data transmission communication module circuit diagram of the invention.
Fig. 7 is that interface of the invention defines figure.
Specific embodiment
A kind of structure of commercial vehicle intelligence engineering diagnostic equipment is present embodiments provided as shown in Figure 1, including that vehicle OBD connects
On mouth, vehicle control device, power module, data transmission communication module, main control module, CAN data communication module, PC or mobile phone
Position machine.
Wherein, vehicle OBD interface, car diagnosis interface, passes through CAN bus and each controller of vehicle (such as engine, vehicle
Body, chassis etc.) it is connected.
Power module is mainly responsible for and is powered to other modules, by obtaining the power supply of vehicle OBD interface and carrying out steady
Pressure and conversion process give main controller module, CAN data communication module, data transmission communication module for power supply, implement circuit
Such as Fig. 3,
CAN data communication module passes through CAN bus and vehicle OBD interface using OBD fault diagnosis international standard protocol
It is connected, is interacted according to the instruction of main control module with control units such as vehicle motor, vehicle body, chassis, speed changer, ABS various
Information, module support the multiple kinds such as ISO 14230, ISO 15765, ISO14229, J1939, and specific implementation circuit is such as
Fig. 5.
Data transmission communication module is mainly responsible for and carries out data communication by WIFI and PC or mobile phone host computer.On the one hand
The instructions such as the controller connection of the host computer received, diagnosis are transferred to main control module, on the other hand by main control module
The relevant information of feedback is transferred to host computer, implements circuit such as Fig. 6.
Main control module is the core of Engineering Diagnosis instrument, is responsible for operating, data processing and the data flow control of diagnostic equipment,
The parsing of communication instruction including host computer parses the original message come from the interaction of CAN data communication module, is controlled
The intelligent scanning etc. of device processed implements circuit such as Fig. 4.
As shown in Fig. 2, commercial vehicle intelligence engineering diagnostic equipment workflow is to be introduced by taking engine as an example, other controls
Device is similar therewith:
After Engineering Diagnosis instrument connects the power-up initializing of vehicle OBD interface, data transmission communication module begins listening for the control of host computer
Device link order processed；After the instruction for receiving host computer connection engine, main control module carries out dissection process to instruction, then
Control CAN data communication module carries out intelligent scanning communication on four road CAN of support；Main control module communicates feelings according to scanning
Condition judges whether connection can be established with engine controller, cannot such as establish connection, and notification data transmission communication module is returned
Multiple host computer can not connect the instruction of controller；
Communication can be such as established, data transmission communication module replys host computer and connects established instruction, and monitors host computer
Controller such as diagnoses, tests, writing with a brush dipped in Chinese ink at the instruction；After receiving instruction, main control module carries out dissection process, control to diagnostic instruction
CAN data communication module sends diagnosis message to engine controller；After the feedback message for receiving vehicle control device, main control
Host computer is replied to by data transmission communication module after being handled, thus complete engine essential information, fault code indications,
Real-time status parameter information, offline configuration, data such as write with a brush dipped in Chinese ink at the diagnostic functions.
In addition to the implementation, the present invention can also have other embodiments.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (6)
1. a kind of commercial vehicle intelligence engineering diagnostic equipment, it is characterised in that: including power module, data transmission communication module, master control
Molding block and CAN data communication module；
The power module is responsible for being powered to other modules, by obtain vehicle OBD interface power supply and carry out pressure stabilizing and
Conversion process gives main controller module, CAN data communication module, data transmission communication module for power supply；
The CAN data communication module passes through CAN bus and vehicle OBD using OBD fault diagnosis international standard protocol
Interface is connected, and is interacted according to the instruction of main control module with control units such as vehicle motor, vehicle body, chassis, speed changer, ABS
Various information；
The data transmission communication module is mainly responsible for and carries out data communication by WIFI and PC or mobile phone host computer；
The main control module is the core of Engineering Diagnosis instrument, is responsible for operating, data processing and the data flow control of diagnostic equipment.
2. commercial vehicle intelligence engineering diagnostic equipment according to claim 1, it is characterised in that: the Engineering Diagnosis instrument also has
Vehicle OBD interface, interior diagnosis interface, each controller of vehicle, the vehicle OBD interface, car diagnosis interface are total by CAN
Line is connected with each controller of vehicle.
3. commercial vehicle intelligence engineering diagnostic equipment according to claim 2, it is characterised in that: each controller of vehicle is at least
Including chassis control unit, control unit of engine, Body Control control unit, transmission control unit and ABS control unit.
4. commercial vehicle intelligence engineering diagnostic equipment according to claim 1, it is characterised in that: the CAN data communication module
At least support ISO 14230, ISO 15765, ISO14229, J1939 communications protocol, can according to setting baud rate and address with
Vehicle control device is communicated.
5. commercial vehicle intelligence engineering diagnostic equipment according to claim 1, it is characterised in that: the work of the power module is former
Reason are as follows: voltage stabilization part is realized by the switching power circuit of BUCK-BOOST topological structure；Metal-oxide-semiconductor is controlled by PWM wave
On-off, to control the voltage that 2 feet of chip U1s export, since on-off frequency is very high, the voltage ripple very little of output, 5 feet are used for
Sampled output voltage constitutes feedback network, the duty ratio of PWM is adjusted with this, and then adjust output voltage, reaches pressure stabilizing
Function；The design parameter can satisfy the demand of 9 ~ 36V pressure stabilizing to 5V.
6. a kind of application method of commercial vehicle intelligence engineering diagnostic equipment as described in claim 1, it is characterised in that: including as follows
Step,
After step 1, the connection vehicle OBD interface power-up initializing of Engineering Diagnosis instrument, data transmission communication module begins listening for upper
The controller link order of machine；
Step 2, after receiving instruction, main control module carries out dissection process to instruction, and the rear CAN data communication module that controls is being propped up
Intelligent scanning communication is carried out on tetra- road CAN of Chi；
Step 3, main control module judge whether connection can be established with controller, if cannot build according to scanning communication condition
Vertical connection, then notification data transmission communication module replys the instruction that host computer can not connect；If communication can be established, data transmission
Communication module replys host computer and connects established instruction, and the controller for monitoring host computer diagnose, tested, writing with a brush dipped in Chinese ink etc. and instructing；
Step 4, after receiving instruction, main control module to diagnostic instruction carry out dissection process, control CAN data communication module give
Vehicle control device sends diagnosis message；
Step 5, after receiving the feedback message of vehicle control device, main control is returned after being handled by data transmission communication module
Again to host computer.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111694346A (en) * | 2020-06-24 | 2020-09-22 | 南京汽车集团有限公司 | OBD universal protocol converter |
| CN112305333A (en) * | 2020-05-20 | 2021-02-02 | 杭州贤芯科技有限公司 | Electric vehicle delivery rapid detection system and method |
| CN112764410A (en) * | 2021-01-19 | 2021-05-07 | 广州橙行智动汽车科技有限公司 | Vehicle-mounted controller testing device, system and method |
| CN114489006A (en) * | 2022-01-12 | 2022-05-13 | 中国重汽集团济南动力有限公司 | TCU offline detection system for new energy commercial vehicle |
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| CN112305333A (en) * | 2020-05-20 | 2021-02-02 | 杭州贤芯科技有限公司 | Electric vehicle delivery rapid detection system and method |
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| CN112764410A (en) * | 2021-01-19 | 2021-05-07 | 广州橙行智动汽车科技有限公司 | Vehicle-mounted controller testing device, system and method |
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| CN114489006B (en) * | 2022-01-12 | 2024-03-15 | 中国重汽集团济南动力有限公司 | TCU off-line detection system for new energy commercial vehicle |
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Application publication date: 20190618 |