CN205827233U - A kind of vehicle control unit of electric vehicle failure diagnosis platform - Google Patents
A kind of vehicle control unit of electric vehicle failure diagnosis platform Download PDFInfo
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- CN205827233U CN205827233U CN201620780778.3U CN201620780778U CN205827233U CN 205827233 U CN205827233 U CN 205827233U CN 201620780778 U CN201620780778 U CN 201620780778U CN 205827233 U CN205827233 U CN 205827233U
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Abstract
A kind of vehicle control unit of electric vehicle failure diagnosis platform, it is characterized in that: include signal imitation generating unit, frequency-voltage conversion circuit and data acquisition unit, signal imitation generating unit includes pulse signal generator, analog signals generator and on-off model generator, pulse signal generator nurses one's health interface through pulsed quantity, analog signals generator nurses one's health interface through analog quantity, on-off model generator connects microcontroller respectively through switching value conditioning interface, microcontroller connects display instrument through CAN interface, each relay is connected through relay drive unit, motor ECU is connected respectively through high-speed CAN bus by high-speed CAN bus interface, battery ECU and data acquisition unit, data acquisition unit connects host computer；Pulsed quantity signal when entire car controller is run by frequency-voltage conversion circuit is converted to analog signals.The fault of entire car controller can be diagnosed by this utility model automatically, and its detection is fast, precision is high.
Description
Technical field:
This utility model relates to electric automobile field of fault detection, is specifically related to a kind of vehicle control unit of electric vehicle fault
Diagnostic table.
Background technology:
Vehicle control unit of electric vehicle is the core control part of whole electric automobile, and it judges accelerator pedal by gathering
Signal, brake pedal signal and other component signal control each lower part or controller, make automobile normal running.As
The command and management center of automobile, has multi-signal parameter and enters entire car controller.Wherein, when certain semaphore breaks down,
According to detection mode manually, efficiency and the low problem of accuracy rate can be brought.Therefore, entire car controller fault-signal is come
Source and the detection of entire car controller itself and process extremely important.
Summary of the invention:
This utility model is to solve when vehicle control unit of electric vehicle breaks down mode detection efficiency manually
The problem low with accuracy rate, it is provided that a kind of vehicle control unit of electric vehicle failure diagnosis platform.
Vehicle control unit of electric vehicle failure diagnosis platform of the present utility model, the technical side used for achieving the above object
Case is: include signal imitation generating unit, frequency-voltage conversion circuit, data acquisition unit and host computer,
Described signal imitation generating unit includes that pulse signal generator, analog signals generator and on-off model are sent out
Raw device, pulse signal generator connects the pulsed quantity conditioning interface of entire car controller, and analog signals generator connects car load control
The analog quantity conditioning interface of device processed, on-off model generator connects the switching value conditioning interface of entire car controller, and pulsed quantity is adjusted
Reason interface, analog quantity conditioning interface and switching value conditioning interface connect the microcontroller of entire car controller respectively, and microcontroller leads to
Crossing CAN interface and connect display instrument, microcontroller connects each relay by relay drive unit, and microcontroller passes through
High-speed CAN bus interface connects motor ECU, battery ECU and detecting signal unit respectively through high-speed CAN bus, and described signal is examined
Survey unit and connect host computer by data acquisition unit；
Described frequency-voltage conversion circuit is for gathering pulsed quantity signal when entire car controller runs, and is converted to simulation
Amount signal.
As further improvement of the utility model, described frequency-voltage conversion circuit include AD654 chip, resistance R1,
Resistance R2, resistance R3, resistance R4, variable resistance R5, resistance R6, resistance R7, electric capacity C1, electric capacity C2 and electric capacity C3,
The pulse signal input terminal of frequency-voltage conversion circuit connects one end of electric capacity C2, the other end of electric capacity C2 and resistance
One end of R2 and 6 feet of AD654 chip connect, and the other end of resistance R2 connects with one end of resistance R1 and one end of resistance R6 simultaneously
Connecing, the other end of resistance R1 is simultaneously connected with one end of electric capacity C1 and 5 feet of AD654 chip, and the other end of resistance R6 is simultaneously connected with
One end of resistance R3 and 7 feet of AD654 chip, the other end ground connection of resistance R3, the other end ground connection of electric capacity C1, resistance R7 and electricity
Hold one end ground connection after C3 parallel connection, 1 foot of one end connection AD654 chip, one end ground connection, the other end and the resistance of variable resistance R5
2 feet of AD654 chip, ground connection after 3 feet of AD654 chip and 4 foot short circuits is connected after R4 series connection.AD654 chip has more stable
Voltage reference, resolution and the linearity, thus chip composition frequency-voltage conversion circuit can accept broader supply voltage
And ambient temperature, there is higher conversion accuracy and the linearity, the highest the pulse signal of 1MHz can be changed.
As further improvement of the utility model, described data acquisition unit connects host computer 3 by RS485 bus,
The transmission of its data is accurately, rapidly.
As further improvement of the utility model, described pulse signal generator uses ICL8038 intervalometer to realize, its
Highly sensitive.
The beneficial effects of the utility model are: this utility model achieves the automatic inspection to entire car controller fault-signal
Survey, compared with the mode of existing fault detect manually, substantially increase detection efficiency and accuracy of detection, and save manpower,
It is easy to promotion and implementation.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the circuit diagram of pulse signal generator；
Fig. 3 is the circuit diagram of frequency-voltage conversion circuit；
Detailed description of the invention:
With reference to Fig. 1, this vehicle control unit of electric vehicle failure diagnosis platform, including signal imitation generating unit 1, voltage to frequency
Change-over circuit, data acquisition unit 4 and host computer 3,
Described signal imitation generating unit 1 includes pulse signal generator 5, analog signals generator 6 and switching value letter
Number generator 7, pulse signal generator 5 connects the pulsed quantity conditioning interface 21 of entire car controller 2, analog signals generator 6
Connecting the analog quantity conditioning interface 22 of entire car controller 2, on-off model generator 7 connects the switching value of entire car controller 2 and adjusts
Reason interface 23, pulsed quantity conditioning interface 21, analog quantity conditioning interface 22 and switching value conditioning interface 23 connect full-vehicle control respectively
The microcontroller 26 of device 2, microcontroller 26 connects display instrument 9 by CAN interface 25, and microcontroller 2 passes through relay
Driver element 27 connects each relay, and microcontroller 26 is connected through high-speed CAN bus 10 respectively by high-speed CAN bus interface 24
Motor ECU11, battery ECU12 and detecting signal unit 8, described detecting signal unit 8 connects upper by data acquisition unit 4
Machine 3, described data acquisition unit 4 connects host computer 3 by RS485 bus, and host computer 3 is used for controlling data acquisition unit
System and data show.
Described frequency-voltage conversion circuit is for gathering pulsed quantity signal when entire car controller 2 runs, and is converted to mould
Analog quantity signal；Analog signals in entire car controller 2 and on-off model and the analog quantity after voltage to frequency is changed
Signal is flowed to detecting signal unit 8 through microcontroller 26 by high-speed CAN bus interface 24 and high-speed CAN bus 10, then by believing
Number detector unit 8 exports to data acquisition unit 4, is finally sent detection data to host computer 3 by data acquisition unit 4.
Microcontroller 26 in entire car controller 2 nurses one's health interface 21 return pulse signal by pulsed quantity；Pass through analog quantity
Conditioning interface 22 receives accelerator pedal signal and brake pedal signal；Receive charge switch by switching value conditioning interface 23 to believe
Number, initiation key signal, air-conditioning switch signal, mode switching signal and brake pedal signal；By high-speed CAN bus interface 24
Respectively and carry out data transmission between motor ECU10, battery ECU11, detecting signal unit 8；By CAN interface 25 with aobvious
Show and between instrument 9, carry out data transmission；Main relay, AIR COND RLY Air Conditioner Relay, DC/DC relay is driven by relay drive circuit 27
Device and duplicate relay, data acquisition unit 4 sends the data that detecting signal unit 8 detects to host computer 3.Pass through display instrument
Table 9 shows electric automobile basic status and entire car controller lower part or controller state.
With reference to Fig. 3, described frequency-voltage conversion circuit includes AD654 chip, resistance R1, resistance R2, resistance R3, resistance
R4, variable resistance R5, resistance R6, resistance R7, electric capacity C1, electric capacity C2 and electric capacity C3,
The pulse signal input terminal of frequency-voltage conversion circuit connects one end of electric capacity C2, the other end of electric capacity C2 and resistance
One end of R2 and 6 feet of AD654 chip connect, and the other end of resistance R2 connects with one end of resistance R1 and one end of resistance R6 simultaneously
Connecing, the other end of resistance R1 is simultaneously connected with one end of electric capacity C1 and 5 feet of AD654 chip, and the other end of resistance R6 is simultaneously connected with
One end of resistance R3 and 7 feet of AD654 chip, the other end ground connection of resistance R3, the other end ground connection of electric capacity C1, resistance R7 and electricity
Hold one end ground connection after C3 parallel connection, 1 foot of one end connection AD654 chip, one end ground connection, the other end and the resistance of variable resistance R5
2 feet of AD654 chip, ground connection after 3 feet of AD654 chip and 4 foot short circuits is connected after R4 series connection.
With reference to Fig. 2, described pulse signal generator 5 uses ICL8038 intervalometer to realize.
Claims (4)
1. a vehicle control unit of electric vehicle failure diagnosis platform, it is characterised in that: include signal imitation generating unit (1), frequently
Rate voltage conversion circuit, data acquisition unit (4) and host computer (3),
Described signal imitation generating unit (1) includes pulse signal generator (5), analog signals generator (6) and switching value
Signal generator (7), pulse signal generator (5) connects pulsed quantity conditioning interface (21) of entire car controller (2), and analog quantity is believed
Number generator (6) connects analog quantity conditioning interface (22) of entire car controller (2), and on-off model generator (7) connects car load
Switching value conditioning interface (23) of controller (2), pulsed quantity conditioning interface (21), analog quantity conditioning interface (22) and switching value are adjusted
Reason interface (23) connects the microcontroller (26) of entire car controller (2) respectively, and microcontroller (26) passes through CAN interface (25)
Connecting display instrument (9), microcontroller (2) connects each relay by relay drive unit (27), and microcontroller (26) leads to
Cross high-speed CAN bus interface (24) and connect motor ECU (11), battery ECU (12) and signal inspection respectively through high-speed CAN bus (10)
Surveying unit (8), described detecting signal unit (8) connects host computer (3) by data acquisition unit (4)；
Described frequency-voltage conversion circuit is for gathering pulsed quantity signal when entire car controller runs, and is converted to analog quantity letter
Number.
2. a kind of vehicle control unit of electric vehicle failure diagnosis platform as claimed in claim 1, it is characterised in that: described frequency electricity
Voltage conversion circuit include AD654 chip, resistance R1, resistance R2, resistance R3, resistance R4, variable resistance R5, resistance R6, resistance R7,
Electric capacity C1, electric capacity C2 and electric capacity C3,
The pulse signal input terminal of frequency-voltage conversion circuit connects one end of electric capacity C2, and the other end of electric capacity C2 is with resistance R2's
6 feet of one end and AD654 chip connect, and the other end of resistance R2 is connected with one end of resistance R1 and one end of resistance R6 simultaneously,
The other end of resistance R1 is simultaneously connected with one end of electric capacity C1 and 5 feet of AD654 chip, and the other end of resistance R6 is simultaneously connected with resistance
One end of R3 and 7 feet of AD654 chip, the other end ground connection of resistance R3, the other end ground connection of electric capacity C1, resistance R7 and electric capacity C3
One end ground connection after parallel connection, one end connect 1 foot of AD654 chip, and one end ground connection of variable resistance R5, the other end are gone here and there with resistance R4
2 feet of AD654 chip, ground connection after 3 feet of AD654 chip and 4 foot short circuits is connected after connection.
3. a kind of vehicle control unit of electric vehicle failure diagnosis platform as claimed in claim 1, it is characterised in that: described data acquisition
Collection unit (4) connects host computer 3 by RS485 bus.
4. a kind of vehicle control unit of electric vehicle failure diagnosis platform as claimed in claim 1, it is characterised in that: described pulse is believed
Number generator (5) uses ICL8038 intervalometer to realize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780778.3U CN205827233U (en) | 2016-07-22 | 2016-07-22 | A kind of vehicle control unit of electric vehicle failure diagnosis platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620780778.3U CN205827233U (en) | 2016-07-22 | 2016-07-22 | A kind of vehicle control unit of electric vehicle failure diagnosis platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205827233U true CN205827233U (en) | 2016-12-21 |
Family
ID=57561350
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620780778.3U Expired - Fee Related CN205827233U (en) | 2016-07-22 | 2016-07-22 | A kind of vehicle control unit of electric vehicle failure diagnosis platform |
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| Country | Link |
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| CN (1) | CN205827233U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030026A (en) * | 2018-08-23 | 2018-12-18 | 南斗六星系统集成有限公司 | A kind of vehicle electric function detection and analysis device |
| CN111483339A (en) * | 2020-04-18 | 2020-08-04 | 国网（北京）新能源汽车服务有限公司 | Electric vehicle charging monitoring system, charging pile system and monitoring method |
| CN112180895A (en) * | 2020-09-23 | 2021-01-05 | 宣化钢铁集团有限责任公司 | Locomotive microcomputer board diagnosis and detection method |
-
2016
- 2016-07-22 CN CN201620780778.3U patent/CN205827233U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030026A (en) * | 2018-08-23 | 2018-12-18 | 南斗六星系统集成有限公司 | A kind of vehicle electric function detection and analysis device |
| CN111483339A (en) * | 2020-04-18 | 2020-08-04 | 国网（北京）新能源汽车服务有限公司 | Electric vehicle charging monitoring system, charging pile system and monitoring method |
| CN111483339B (en) * | 2020-04-18 | 2023-08-08 | 国网（北京）新能源汽车服务有限公司 | Electric vehicle charging monitoring system, charging pile system and monitoring method |
| CN112180895A (en) * | 2020-09-23 | 2021-01-05 | 宣化钢铁集团有限责任公司 | Locomotive microcomputer board diagnosis and detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161221 Termination date: 20190722 |