CN201548405U - Computerized Vehicle Fault Diagnosis Device - Google Patents

Abstract

The technical solution of the utility model belongs to the field of automobile electronic diagnostic equipment, and relates to a computer-type automobile fault diagnosis device. In order to solve the technical problems existing in the prior art, such as slow running speed, inability to store diagnostic data, and single diagnostic function, the utility model provides a computerized vehicle fault diagnosis device, which includes: a main control module, A signal acquisition module, a man-machine communication module, a storage module and an interface module, the interface module includes a first interface module and a second interface module, wherein the main control module is connected to the signal acquisition module and the first interface module in sequence, and the man-machine communication The module, the storage module and the second interface module are respectively connected with the main control module. The vehicle fault diagnosis device of the utility model has fast data processing speed, can carry out real-time intelligent maintenance diagnosis, guidance and provide detailed diagnosis report for the tested vehicle, and can carry out remote operation through networking, and can store the diagnosis data flow.

Description

Computerized Vehicle Fault Diagnosis Device

【Technical field】

The technical solution of the utility model belongs to the field of automobile electronic diagnosis equipment, and in particular relates to a computer-type automobile fault diagnosis device.

【Background technique】

With the continuous development of the automobile industry and stricter emission regulations, more and more microcomputer control systems have been applied to automobile electronic modules, which has a great impact on the safety, reliability, power, economy, and environmental protection of automobiles. improve. At the same time, with the application of various sensors and actuators, the electronic structure of the car is becoming more and more complex, which also makes the diagnosis and elimination of car faults more and more difficult. At this time, the vehicle fault diagnosis device also came into being.

After more than 20 years of development of automobile fault diagnosis devices, most of the automobile fault diagnosis devices currently used in the market are third-generation handheld diagnostic instruments. Because of their lightness and ease of use, they were once the mainstream choice for automobile diagnosis. However, as the electronic control system becomes more and more complex and diverse, the hand-held diagnostic instrument cannot perform ECU programming due to its slow speed, cannot provide real-time intelligent maintenance diagnosis guidance and diagnosis report, cannot perform networked remote operation, and cannot perform diagnosis. Defects such as data stream storage can no longer meet the needs of modern automotive diagnostics.

【Content of utility model】

In order to solve the technical problems of the hand-held automobile fault diagnosis instrument in the prior art, such as slow running speed, inability to store diagnostic data streams, single diagnostic function, etc., the technical proposal of the utility model provides a computerized automobile fault diagnosis device.

The technical scheme adopted by the utility model to solve the problems of the prior art is as follows: a computerized vehicle fault diagnosis device is provided. The computerized vehicle fault diagnosis device includes: a main control module, a signal acquisition module, a man-machine communication module, and a storage module and an interface module, the interface module includes a first interface module connected to a computer and a second interface module connected to a detected vehicle, wherein the main control module is sequentially connected with the signal acquisition module and the first interface module The man-machine communication module, the storage module and the second interface module are respectively connected to the main control module.

According to a preferred technical solution of the utility model: the main control module is an MC9S12DG128B chip.

According to a preferred technical solution of the utility model: the signal acquisition module is a TL718 chip.

According to a preferred technical solution of the utility model: the man-machine communication module is an input control key for selection of diagnosis mode and diagnosis data flow.

According to a preferred technical solution of the utility model: the storage module is an SD card memory used for storing automobile operation and diagnosis data streams.

According to a preferred technical solution of the utility model: the first interface module is a USB interface connected to a computer.

According to a preferred technical solution of the present utility model: the computerized vehicle fault diagnosis device further includes: a power supply module connected to the main control module.

According to a preferred technical solution of the present utility model: the computerized vehicle fault diagnosis device further includes: an information indication module connected to the main control module.

According to a preferred technical solution of the present utility model: the information indicating module is an indicator light for displaying the states of power supply, link, diagnosis and USB connection.

The vehicle fault diagnosis device of the utility model effectively solves the problems existing in the prior art. Its data processing speed is fast, and it can carry out real-time intelligent maintenance diagnosis, guidance and detailed diagnosis report for the vehicle under test, and it can be carried out through networking. Operates remotely and can store diagnostic data streams.

【Description of drawings】

Fig. 1. The structural schematic diagram of the module of the computer type automobile fault diagnosis device of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, technical solution of the utility model is described in detail:

Please refer to Fig. 1, a schematic diagram of the module structure of the computerized vehicle fault diagnosis device of the present utility model. As shown in Figure 1, the technical solution of the present utility model is: provide a kind of computer type vehicle fault diagnosis device, said computer type vehicle fault diagnosis device comprises: main control module 101, signal acquisition module 102, man-machine communication module 105, Storage module 106 and interface module, described interface module comprises the first interface module 103 that is connected with computer and the second interface module 104 that is connected with detected vehicle, wherein, described main control module 101 and described signal collection module 102 and The first interface module 103 is connected in sequence, and the man-machine communication module 105 , the storage module 106 and the second interface module 104 are respectively connected to the main control module 101 .

In the preferred technical solution of the present utility model, the main control module 101 is an MC9S12DG128B chip produced by Freescale. The main control module 101MC9S12DG128B chip processes the signal received from the signal acquisition module 102TL718 chip and sends it to the computer for calculation, which ensures the reliability and security of the data. The main control module 101 also inputs control commands through the man-machine communication module 105, selects the reading mode of the diagnostic data stream, and organizes and stores the data to be stored in the form of a FAT32 format file. The MC9S12DG128B chip is a high-performance chip widely used in the automotive field. It has a high-speed processor with a CPU12 core to meet the needs of automotive diagnostics.

In the preferred technical solution of the present utility model, the signal acquisition module 102 is a TL718 chip. TL718 is an open protocol conversion chip in China. protocol, the signal acquisition module 102 TL718 chip is connected to the automobile electronic control unit through the first interface module 103 and the automobile OBDII connector, and the TL718 chip converts various types of messages sent from each electric control module of the automobile into the main control module 101 The required signal format, and organize the signals and commands sent by the main control module 101 into a corresponding vehicle message format, and send it to each vehicle electronic control module.

In the preferred technical solution of the present utility model, the man-machine communication module 105 is an input control key for selection of operation functions such as diagnosis mode and diagnosis data stream.

In the preferred technical solution of the present utility model, the storage module 106 is an SD card memory used for storing vehicle operation and diagnosis data streams.

In a preferred technical solution of the present utility model, the first interface module 103 is a USB interface connected to a computer.

In the preferred technical solution of the present utility model, the computerized vehicle fault diagnosis device also includes: a power supply module 107 and an information indication module 108, and the power supply module 107 and the information indication module 108 are respectively connected to the main control module 101 .

The utility model computer vehicle fault diagnosis device adopts two kinds of power input modes, which are the vehicle battery power supply circuit and the external power supply circuit respectively, and can provide all the above-mentioned modules when the computer vehicle fault diagnosis device is connected or not connected to the car. The required regulated power supply.

In the preferred technical solution of the present utility model, the information indication module 108 is an indicator light for displaying the status of power supply, link, diagnosis and USB connection.

The vehicle fault diagnosis device of the utility model effectively solves the problems existing in the prior art. Its data processing speed is fast, and it can carry out real-time intelligent maintenance diagnosis, guidance and detailed diagnosis report for the vehicle under test, and it can be carried out through networking. Operates remotely and can store diagnostic data streams.

The above content is a further detailed description of the utility model in combination with specific preferred technical solutions, and it cannot be determined that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (9)

1. computermatic automotive diagnostic unit, it is characterized in that: described computermatic automotive diagnostic unit comprises: main control module (101), signal acquisition module (102), man-machine communication's module (105), memory module (106) and interface module, described interface module comprises first interface module (103) that is connected with computer and second interface module (104) that is connected with detected vehicle, wherein, described main control module (101) is connected described man-machine communication's module (105) successively with described signal acquisition module (102) with described first interface module (103), described memory module (106) is connected with described main control module (101) respectively with described second interface module (104).

2. according to the described computermatic automotive diagnostic unit of claim 1, it is characterized in that: described main control module (101) is the MC9S12DG128B chip.

3. according to the described computermatic automotive diagnostic unit of claim 1, it is characterized in that: described signal acquisition module (102) is the TL718 chip.

4. according to the described computermatic automotive diagnostic unit of claim 1, it is characterized in that: described man-machine communication's module (105) is for being used for the input operating key that diagnostic mode and diagnostic data stream is selected.

5. according to the described computermatic automotive diagnostic unit of claim 1, it is characterized in that: described memory module (106) is for being used to store the SD card memory of automobilism and diagnostic data stream.

6. according to the described computermatic automotive diagnostic unit of claim 1, it is characterized in that: the USB interface of described first interface module (103) for being connected with computer.

7. according to one of them described computermatic automotive diagnostic unit of claim 1-6, it is characterized in that: described computermatic automotive diagnostic unit also comprises: power module (107), described power module (107) is connected with described main control module (101).

8. according to one of them described computermatic automotive diagnostic unit of claim 1-6, it is characterized in that: described computermatic automotive diagnostic unit also comprises: information indicating module (108), described information indicating module (108) is connected with described main control module (101).

9. described according to Claim 8 computermatic automotive diagnostic unit is characterized in that: described information indicating module (108) is for being used for the pilot lamp of display power supply, link, diagnosis and USB connection status.

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