CN110501997A - A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically - Google Patents
A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically Download PDFInfo
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- CN110501997A CN110501997A CN201910826451.3A CN201910826451A CN110501997A CN 110501997 A CN110501997 A CN 110501997A CN 201910826451 A CN201910826451 A CN 201910826451A CN 110501997 A CN110501997 A CN 110501997A
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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
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0267—Fault communication, e.g. human machine interface [HMI]
- G05B23/027—Alarm generation, e.g. communication protocol; Forms of alarm
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Method is write with a brush dipped in Chinese ink automatically the present invention relates to a kind of novel gas inlet flow sensor mark K value, belong to internal combustion engine state VI electric-control system charge flow rate field of measuring technique comprising following steps: ECU sends the order for reading K value to TFI4 sensor；In 150ms, ECU receives the K value of return, is read out；It reads the K value returned and then retransmits reading K value order in vain, continuous 5 readings then terminate this process in vain；ECU reads the K value returned and is verified, and verification is consistent, this process terminates；Verify it is inconsistent, then to sensor start be written the order of K value；Write state success is fed back, this process is terminated；Feedback write-in failure, then the K value that ECU re-reads return are verified, and continuous 5 feedback write states failure, then this process terminates.The invention patent not only solves scalar quantity K value and writes with a brush dipped in Chinese ink the limitation for being only restricted in producer's realization, while can adapt to main engine plants and developing a plurality of types, significantly reduces workload, embodies timeliness and convenience.
Description
Technical field
The invention belongs to internal combustion engine state VI electric-control system charge flow rate field of measuring technique, and in particular to a kind of novel gas inlet
Flow sensor mark K value writes with a brush dipped in Chinese ink method automatically.
Background technique
The scalar quantity K value of the intake flow sensor (subsequent abbreviation TFI4 sensor) can only rely on during writing with a brush dipped in Chinese ink
The peculiar equipment of producer is write with a brush dipped in Chinese ink, and can not be realized by control unit of engine and be write with a brush dipped in Chinese ink automatically.And new sensing is replaced in after market
After device, timely and effectively scalar quantity K value can not be write with a brush dipped in Chinese ink in sensor, will lead to the charge flow rate of TFI4 sensor measurement not
Standard, and then cause the Combustion System of engine poor, and then it is exceeded to influence discharge.
Summary of the invention
In order to overcome drawbacks described above existing in the prior art, the invention patent is designed to provide a kind of novel gas inlet
Flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically, and can not can only rely on the peculiar equipment of producer to solve existing product writes with a brush dipped in Chinese ink
The problem of scalar quantity K value.
The invention patent the following technical solution is employed realize:
A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically, comprising the following steps:
1) ECU sends the order for reading K value to TFI4 sensor, receives and verify the K value of return；
If 2) ECU receives the K value of TFI4 sensor return in 150ms, then the K value of return is read out inside ECU；
3) step 1) is repeated if reading the K value returned in vain, the K value of continuous 5 returns is read terminates this process in vain；
4) ECU reads the K value returned and is verified with legacy data, if verification is consistent, this process terminates；If verifying different
It causes, then ECU sends write-in K value order and receiving sensor feedback to TFI4 sensor；
5) if sensor feedback write state success, terminates this process；Fail if feedback is written, repeatedly step 4), continuous 5
Secondary ECU sends write-in K value order failure to TFI4 sensor, then this process terminates.
As a further improvement of the present invention, the time interval in step 3), between the order of twi-read return value
It is greater than 250ms.
As a further improvement of the present invention, in step 3), if continuous five return values are invalid, ECU shows failure
And it alarms.
As a further improvement of the present invention, in step 5), continuous 5 ECU send write-in K value life to TFI4 sensor
Failure is enabled, then ECU shows failure and alarms.
Compared with prior art, as follows the advantages of the invention patent:
The invention patent not only solves scalar quantity K value and writes with a brush dipped in Chinese ink the limitation for being only restricted in producer's realization, while can adapt to lead
Machine factory is developing a plurality of types, various inlet pipe caused TFI4 transducer calibration amount K value difference bring complexity when designing,
Control unit of engine powers on the automatic of the K value for realizing TFI4 sensor and writes with a brush dipped in Chinese ink function, significantly reduces workload, embodies
Timeliness and convenience.
Detailed description of the invention
Fig. 1 is that this patent of the present invention realizes that scalar quantity K value writes with a brush dipped in Chinese ink the report that process sensor is interacted with control unit of engine
Literary information.
Fig. 2 is the specific strategy flow chart that the invention patent realizes function.
Specific embodiment
The invention patent is further described with reference to the accompanying drawing.
Control unit of engine CANID:18FFE200, TFI4 sensor CANID:18FF00E2.Control unit of engine
It is 02 22 A3 to the reading K value message that sensor is sent, it is 04 62 A3 K1 K2 that sensor, which returns to K value message,；Engine
Control unit is 04 2E A3 K1 K2 to the write-in K value message that sensor is sent, and it is 03 6E that sensor, which returns the result message,
A3 xx.Wherein 0xA3 is K value mark；K1 K2 is K Value Data, totally two bytes, and high byte is preceding；Xx is result phase word
Section, 0x01 indicate that successfully 0x00 indicates failure.
As depicted in figs. 1 and 2, the 2s after TFI4 sensor powers on is sent out by control unit of engine ECU to TFI4 sensor
The dynamic order for reading K value；
It is verified if receiving sensor return value in transmission reading order 150ms with ECU internal data, if being more than
It is invalid value that 150ms, which is not received by return value or return value, then repeating the above steps, (time interval is wanted between two read commands
Greater than 250ms), if 5 times continuous (most 5 times) fail, control unit of engine quotes failure and terminates this process；
If the K value that sensor returns is consistent with data in control unit of engine, do not need to execute writing commands, and process
Terminate, if K value is inconsistent, writing commands can be triggered；
Control unit of engine sends writing commands to sensor, and K value is written to the flash memory area of sensor, while sensor feedback
Write state (success or failure)；
If being written successfully, terminate process, if write-in failure, repeats above-mentioned writing commands, if 5 times continuous (most 5 times) are equal
Failure, then control unit of engine quotes failure and terminates this process.
Claims (4)
1. a kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically, comprising the following steps:
1) ECU sends the order for reading K value to TFI4 sensor, receives and verify the K value of return；
If 2) ECU receives the K value of TFI4 sensor return in 150ms, then the K value of return is read out inside ECU；
3) step 1) is repeated if reading the K value returned in vain, the K value of continuous 5 returns is read terminates this process in vain；
4) ECU reads the K value returned and is verified with legacy data, if verification is consistent, this process terminates；If verifying different
It causes, then ECU sends write-in K value order and receiving sensor feedback to TFI4 sensor；
5) if sensor feedback write state success, terminates this process；Fail if feedback is written, repeatedly step 4), continuous 5
Secondary ECU sends write-in K value order failure to TFI4 sensor, then this process terminates.
2. a kind of novel gas inlet flow sensor scalar quantity K value as shown in claim 1 writes with a brush dipped in Chinese ink method automatically, feature exists
In in step 3), the time interval between the order of twi-read return value is greater than 250ms.
3. a kind of novel gas inlet flow sensor scalar quantity K value as shown in claim 1 writes with a brush dipped in Chinese ink method automatically, feature exists
In in step 3), if continuous five return values are invalid, ECU shows failure and alarms.
4. a kind of novel gas inlet flow sensor scalar quantity K value as shown in claim 1 writes with a brush dipped in Chinese ink method automatically, feature exists
In in step 5), continuous 5 ECU send write-in K value order failure to TFI4 sensor, then ECU shows failure and alarms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826451.3A CN110501997A (en) | 2019-09-03 | 2019-09-03 | A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910826451.3A CN110501997A (en) | 2019-09-03 | 2019-09-03 | A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically |
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| Publication Number | Publication Date |
|---|---|
| CN110501997A true CN110501997A (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910826451.3A Pending CN110501997A (en) | 2019-09-03 | 2019-09-03 | A kind of novel gas inlet flow sensor scalar quantity K value writes with a brush dipped in Chinese ink method automatically |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900502A (en) * | 2012-10-17 | 2013-01-30 | 北京工业大学 | Oxygen sensor-based urea jet control device for diesel and control method for jet control device |
| CN104828093A (en) * | 2014-06-06 | 2015-08-12 | 北汽福田汽车股份有限公司 | Gear sensor correction method and system of vehicle, and vehicle having gear sensor correction system |
| CN105553366A (en) * | 2015-12-23 | 2016-05-04 | 奇瑞汽车股份有限公司 | Motor rotor calibration method and device |
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN108162891A (en) * | 2016-12-07 | 2018-06-15 | 比亚迪股份有限公司 | The calibration system and method for vehicle complete vehicle controller |
| CN108340966A (en) * | 2018-01-08 | 2018-07-31 | 联创汽车电子有限公司 | Position self-learning method in electric boosting steering system and its steering wheel angle |
| CN109591730A (en) * | 2018-12-13 | 2019-04-09 | 华域汽车车身零件（上海）有限公司 | A kind of CAN data package processing method based on current sensor |
-
2019
- 2019-09-03 CN CN201910826451.3A patent/CN110501997A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900502A (en) * | 2012-10-17 | 2013-01-30 | 北京工业大学 | Oxygen sensor-based urea jet control device for diesel and control method for jet control device |
| CN104828093A (en) * | 2014-06-06 | 2015-08-12 | 北汽福田汽车股份有限公司 | Gear sensor correction method and system of vehicle, and vehicle having gear sensor correction system |
| CN105553366A (en) * | 2015-12-23 | 2016-05-04 | 奇瑞汽车股份有限公司 | Motor rotor calibration method and device |
| CN108162891A (en) * | 2016-12-07 | 2018-06-15 | 比亚迪股份有限公司 | The calibration system and method for vehicle complete vehicle controller |
| CN108340966A (en) * | 2018-01-08 | 2018-07-31 | 联创汽车电子有限公司 | Position self-learning method in electric boosting steering system and its steering wheel angle |
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN109591730A (en) * | 2018-12-13 | 2019-04-09 | 华域汽车车身零件（上海）有限公司 | A kind of CAN data package processing method based on current sensor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191126 |