CN113917904A - A design method for fault diagnosis of electric vehicles using mobile phone APP - Google Patents
A design method for fault diagnosis of electric vehicles using mobile phone APP Download PDFInfo
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- CN113917904A CN113917904A CN202110838956.9A CN202110838956A CN113917904A CN 113917904 A CN113917904 A CN 113917904A CN 202110838956 A CN202110838956 A CN 202110838956A CN 113917904 A CN113917904 A CN 113917904A
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000013461 design Methods 0.000 title claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 6
- 238000012795 verification Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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- General Physics & Mathematics (AREA)
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
Abstract
The invention relates to the technical field of new energy electric automobiles, and discloses a design method for carrying out fault diagnosis on an electric automobile by using a mobile phone APP, which comprises the following steps: step one, preparing required equipment: preparing and diagnosing a VCI connector and an android system mobile phone; step two, installing APP: installing a diagnosis application program on the mobile phone; step three, inserting and installing: connecting the diagnosis VCI connector with an OBD interface of the vehicle, and supplying power to the VCI connector by a vehicle-mounted power supply; step four, Bluetooth connection: the application program is started to carry out Bluetooth interconnection on the VCI connector and the mobile phone; step five, diagnosing the application program: (1) reading a fault code, (2) clearing the fault code, (3) reading a dynamic data stream, and (4) flashing a vehicle-mounted control module program. This electric automobile utilizes cell-phone APP to carry out fault diagnosis's design method, and cell-phone diagnosis APP cooperation diagnosis connects and can carry out fault diagnosis to the vehicle, convenient to carry, and special diagnosis connects and carries out the bluetooth with the cell-phone and be connected.
Description
Technical Field
The invention relates to the technical field of new energy electric automobiles, in particular to a design method for carrying out fault diagnosis on an electric automobile by using a mobile phone APP.
Background
The electromotion and intellectualization of the automobile are inevitable trends of future automobiles, the change of a power structure, the combination of network connection and the carrying of intelligent equipment; the vehicle-mounted control module is the core of the whole vehicle technology, and the control module not only performs function control on parts, but also monitors the states of the parts, so that the development of fault diagnosis work of the whole vehicle is facilitated. The automobile fault diagnosis refers to detection, analysis and judgment for determining the technical condition of the automobile or finding out the fault part and reason under the condition of not disassembling (or only disassembling individual small pieces) when the automobile has potential fault, the technical condition is deteriorated or the automobile partially or completely loses working capacity.
At present, the existing design method for carrying out fault diagnosis on an electric automobile by using a mobile phone APP has the following problems: the existing electric automobile utilizes the handheld flat panel diagnostic instrument to be connected with the OBD port of the automobile through the connector to diagnose the automobile, the handheld flat panel diagnostic instrument is large in appearance, heavy and not easy to carry, and the maintainer is inconvenient to diagnose and operate the automobile quickly. For this reason, a corresponding technical scheme needs to be designed for solution.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a design method for carrying out fault diagnosis on an electric automobile by using a mobile phone APP, and solves the technical problems that the conventional electric automobile carries out vehicle diagnosis by using a handheld panel diagnostic instrument connected with a vehicle OBD port through a connector, the handheld panel diagnostic instrument is large in appearance, heavy and not easy to carry, and a maintainer is inconvenient to carry out diagnosis operation on a vehicle quickly.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a design method for diagnosing faults of an electric automobile by using a mobile phone APP comprises the following steps:
step one, preparing required equipment: preparing and diagnosing a VCI connector and an android system mobile phone;
step two, installing APP: installing a diagnosis application program on the mobile phone;
step three, inserting and installing: connecting the diagnosis VCI connector with an OBD interface of the vehicle, and supplying power to the VCI connector by a vehicle-mounted power supply;
step four, Bluetooth connection: the application program is started to carry out Bluetooth interconnection on the VCI connector and the mobile phone;
step five, diagnosing the application program: (1) reading the fault code, and requesting the vehicle-mounted control module to access the fault code stored in the module storage unit through an application program; (2) clearing fault codes, sending a fault code clearing instruction to the vehicle-mounted control module through an application program, and clearing fault information in the memory by the control module according to the corresponding operation requirement; (3) reading the dynamic data stream, sending a dynamic data stream reading instruction to the vehicle-mounted control module through the application program, returning state data to the diagnostic program through the vehicle-mounted control module after the verification of the programs of the two parties, and displaying data information in a data menu by the diagnostic program; (4) and the vehicle-mounted control module performs program flashing, sends a data writing instruction to the vehicle-mounted control module through the application program, and writes data into the vehicle-mounted control module and the diagnosis module through the diagnosis application program after safety verification is passed.
Preferably, in the third step, a hardware circuit inside the diagnosis VCI connector is provided with a CAN communication module and a Bluetooth module, the CAN communication module CAN receive and transmit bus information, and the Bluetooth module CAN be paired with Bluetooth of a mobile phone of an android system to perform data transmission.
Preferably, in the second step, the APP interface includes a program opening interface, a program main interface, and a sub-function interface.
Preferably, in the third step, the pin definition names of the VCI connectors are respectively free selection, a positive line of the SAEJ1850 bus, a vehicle body CAN _ H, a chassis ground, a signal ground, a vehicle control area network-H, K line, free selection, a negative line of the SAEJ1850 bus, a vehicle control area network-L, free selection and free selection in sequence.
(III) advantageous effects
This electric automobile utilizes cell-phone APP to carry out fault diagnosis's design method, and cell-phone diagnosis APP cooperation diagnosis connects and can carry out fault diagnosis to the vehicle, and convenient to carry, special diagnosis connects and carries out the bluetooth with the cell-phone and is connected, and the cell-phone connects through the diagnosis and obtains vehicle data and carry out vehicle diagnosis, can help the maintainer to utilize the cell-phone quick convenient to carry out diagnosis operation to the vehicle, and trip diagnostic equipment only need wear diagnosis VCI to connect and can accomplish vehicle fault diagnosis.
Drawings
FIG. 1 is a schematic diagram of a diagnostic connection of the present invention;
FIG. 2 is a schematic diagram of a diagnostic APP function menu framework of the present invention;
FIG. 3 is a schematic diagram of the diagnostic VCI pin of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention provides a technical solution: a design method for diagnosing faults of an electric automobile by using a mobile phone APP comprises the following steps:
step one, preparing required equipment: preparing and diagnosing a VCI connector and an android system mobile phone;
step two, installing APP: installing a diagnosis application program on the mobile phone;
step three, inserting and installing: connecting the diagnosis VCI connector with an OBD interface of the vehicle, and supplying power to the VCI connector by a vehicle-mounted power supply;
step four, Bluetooth connection: the application program is started to carry out Bluetooth interconnection on the VCI connector and the mobile phone;
step five, diagnosing the application program: (1) reading the fault code, and requesting the vehicle-mounted control module to access the fault code stored in the module storage unit through an application program; (2) clearing fault codes, sending a fault code clearing instruction to the vehicle-mounted control module through an application program, and clearing fault information in the memory by the control module according to the corresponding operation requirement; (3) reading the dynamic data stream, sending a dynamic data stream reading instruction to the vehicle-mounted control module through the application program, returning state data to the diagnostic program through the vehicle-mounted control module after the verification of the programs of the two parties, and displaying data information in a data menu by the diagnostic program; (4) and the vehicle-mounted control module performs program flashing, sends a data writing instruction to the vehicle-mounted control module through the application program, and writes data into the vehicle-mounted control module and the diagnosis module through the diagnosis application program after safety verification is passed.
In a further improvement mode, in the third step, a hardware circuit inside the diagnosis VCI connector is provided with a CAN communication module and a Bluetooth module, the CAN communication module CAN receive and transmit bus information, and the Bluetooth module CAN be paired with Bluetooth of a mobile phone of an android system to perform data transmission.
In a further improvement, in the second step, the APP interface includes a program opening interface, a program main interface, and a sub-function interface.
In a specific improvement, in the third step, the pin definition names of the VCI connectors are respectively free selection, a positive line of the SAEJ1850 bus, a vehicle body CAN _ H, a chassis ground, a signal ground, a vehicle control area network-H, K line, free selection, a negative line of the SAEJ1850 bus, a vehicle control area network-L, free selection and free selection in sequence.
The invention relates to automobile part diagnosis function development and software application program development.
The mobile phone diagnosis APP can be matched with the diagnosis connector to diagnose faults of the vehicle, the mobile phone diagnosis APP is convenient to carry, diagnosis standards and diagnosis function requirements are formulated, and part diagnosis functions and diagnosis application programs are developed according to the standards; the diagnosis application program is transplanted to the android mobile phone system, the special diagnosis connector is developed to be connected with the mobile phone through Bluetooth, the mobile phone obtains vehicle data through the diagnosis connector to perform vehicle diagnosis, a maintainer can be helped to use the mobile phone to perform diagnosis operation on a vehicle quickly and conveniently, and the trip diagnosis equipment can finish vehicle fault diagnosis only by wearing the diagnosis VCI connector.
The diagnosis VCI joint passes through the OBD interface of hardwire connection in the car, and the diagnosis VCI joint passes through the bluetooth and connects in the mobile phone of android system, the mobile phone of android system is inside including a key diagnosis, reading fault code, procedure write and read dynamic number.
The home page of the diagnosis APP function menu is provided with a starting option, the starting option comprises one-key diagnosis, vehicle type diagnosis, diagnosis connection and related software, the one-key diagnosis is written by reading a fault code, clearing the fault code, reading a dynamic data stream and a vehicle-mounted control module program, the vehicle type diagnosis comprises a vehicle brand, a vehicle type, a diagnosis module and a diagnosis function, the diagnosis connection comprises diagnosis VCI Bluetooth upgrading and Bluetooth connection, and the related software comprises an upgrading menu.
The invention solves the problem that the conventional electric automobile utilizes a handheld panel diagnostic apparatus to connect a vehicle OBD port through a connector for vehicle diagnosis, the handheld panel diagnostic apparatus is large in appearance, heavy and not easy to carry, and an overhaul worker is inconvenient to carry out diagnosis operation on the vehicle quickly.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A design method for fault diagnosis of an electric automobile by using a mobile phone APP is characterized by comprising the following steps: the method comprises the following steps:
step one, preparing required equipment: preparing and diagnosing a VCI connector and an android system mobile phone;
step two, installing APP: installing a diagnosis application program on the mobile phone;
step three, inserting and installing: connecting the diagnosis VCI connector with an OBD interface of the vehicle, and supplying power to the VCI connector by a vehicle-mounted power supply;
step four, Bluetooth connection: the application program is started to carry out Bluetooth interconnection on the VCI connector and the mobile phone;
step five, diagnosing the application program: (1) reading the fault code, and requesting the vehicle-mounted control module to access the fault code stored in the module storage unit through an application program; (2) clearing fault codes, sending a fault code clearing instruction to the vehicle-mounted control module through an application program, and clearing fault information in the memory by the control module according to the corresponding operation requirement; (3) reading the dynamic data stream, sending a dynamic data stream reading instruction to the vehicle-mounted control module through the application program, returning state data to the diagnostic program through the vehicle-mounted control module after the verification of the programs of the two parties, and displaying data information in a data menu by the diagnostic program; (4) and the vehicle-mounted control module performs program flashing, sends a data writing instruction to the vehicle-mounted control module through the application program, and writes data into the vehicle-mounted control module and the diagnosis module through the diagnosis application program after safety verification is passed.
2. The design method for the electric automobile to perform fault diagnosis by using the mobile phone APP as claimed in claim 1 is characterized in that: in the third step, the hardware circuit inside the diagnosis VCI connector is provided with a CAN communication module and a Bluetooth module, the CAN communication module CAN receive and transmit bus information, and the Bluetooth module CAN be paired with Bluetooth of the mobile phone of the android system to perform data transmission.
3. The design method for the electric automobile to perform fault diagnosis by using the mobile phone APP as claimed in claim 1 is characterized in that: in the second step, the APP interface comprises a program starting interface, a program main interface and a sub-function interface.
4. The design method for the electric automobile to perform fault diagnosis by using the mobile phone APP as claimed in claim 1 is characterized in that: in the third step, the pin definition names of the VCI connectors are respectively free selection, a positive line of the SAEJ1850 bus, a vehicle body CAN _ H, a chassis ground, a signal ground, a vehicle control area network-H, K line, free selection, a negative line of the SAEJ1850 bus, a vehicle control area network-L, free selection and free selection in sequence.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110838956.9A CN113917904A (en) | 2021-07-23 | 2021-07-23 | A design method for fault diagnosis of electric vehicles using mobile phone APP |
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| CN202110838956.9A CN113917904A (en) | 2021-07-23 | 2021-07-23 | A design method for fault diagnosis of electric vehicles using mobile phone APP |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114629664A (en) * | 2022-05-16 | 2022-06-14 | 深圳市星卡软件技术开发有限公司 | APP (application) control method and device based on diagnostic equipment |
| CN114625106A (en) * | 2022-03-07 | 2022-06-14 | 深圳市元征科技股份有限公司 | Vehicle diagnosis method and device, electronic equipment and storage medium |
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Application publication date: 20220111 |
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