CN204309722U - A kind of automotive engine sparking power supply switch circuit assembly - Google Patents
A kind of automotive engine sparking power supply switch circuit assembly Download PDFInfo
- Publication number
- CN204309722U CN204309722U CN201420796748.2U CN201420796748U CN204309722U CN 204309722 U CN204309722 U CN 204309722U CN 201420796748 U CN201420796748 U CN 201420796748U CN 204309722 U CN204309722 U CN 204309722U
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- pin
- lin
- chip
- lin chip
- resistance
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- JLYXXMFPNIAWKQ-UHFFFAOYSA-N γ Benzene hexachloride Chemical compound ClC1C(Cl)C(Cl)C(Cl)C(Cl)C1Cl JLYXXMFPNIAWKQ-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Abstract
The utility model relates to a kind of automotive engine sparking power supply switch circuit assembly, comprise storage battery and the MCU microprocessor for controlling Switching power gear, storage battery connects the VBAT pin to a LIN chip, the TXD pin of LIN chip sends data-signal and connects to MCU microprocessor, the RXD pin of LIN chip is connected with MCU microprocessor signals, the LIN pin of LIN chip is connected with driving arrangement in car by R3 resistance, the mouth that the GND pin of LIN chip receives R3 resistance by a stabilivolt connects, storage battery connects the WAKE_N pin to LIN chip by a diode and R2 resistance successively, the beneficial effects of the utility model: circuit assembly of the present utility model is suitable for LIN chip to carry out Logic judgment and control by passing to MCU after the conversion of the information of driving arrangement in car, then MCU again action realize electrical source exchange function.
Description
Technical field
The utility model belongs to automotive field, is specifically related to a kind of automotive engine sparking power supply switch circuit assembly.
Background technology
The words that engine power in the prior art switches, the electrical source exchange manually carrying out START shelves, ACC shelves, IGN1 shelves and IGN2 shelves is normally inserted by key, such switching mode adopts the pattern of manual switchover completely, is not easy to driving and the driving of vehicle.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of automotive engine sparking power supply switch circuit assembly.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of automotive engine sparking power supply switch circuit assembly, comprise storage battery and the MCU microprocessor for controlling Switching power gear, storage battery connects the VBAT pin to a LIN chip, the TXD pin of LIN chip sends data-signal and connects to MCU microprocessor, the RXD pin of LIN chip is connected with MCU microprocessor signals, the LIN pin of LIN chip is connected with driving arrangement in car by R3 resistance, the mouth that the GND pin of LIN chip receives R3 resistance by a stabilivolt connects, storage battery connects the WAKE_N pin to LIN chip by a diode and R2 resistance successively, the mouth of R2 resistance is also by C1 capacity earth.
Connect a C2 electric capacity between the input end of stabilivolt and the input end of R3 resistance, the RXD pin of LIN chip is also connected to battery power in car by a R1 resistance, and the VBAT pin of LIN chip is also by C3 capacity earth.
The SLP_N pin of LIN chip is connected with MCU microprocessor.
The model of LIN chip is TJA1021T.
After adopting above technical scheme: circuit assembly of the present utility model is suitable for after the information of driving arrangement in car is changed by LIN chip to pass to MCU and carry out Logic judgment and control, then MCU again action realize electrical source exchange function.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Detailed description of the invention
See Fig. 1, a kind of automotive engine sparking power supply switch circuit assembly, comprise storage battery 1 and the MCU microprocessor 2 for controlling Switching power gear, storage battery 1 connects the VBAT pin 4 to a LIN chip 3, the TXD pin 5 of LIN chip 3 sends data-signal and connects to MCU microprocessor 2, the RXD pin 6 of LIN chip 3 is connected with MCU microprocessor 2 signal, the LIN pin 7 of LIN chip 3 is connected with driving arrangement in car 20 by R3 resistance 8, the mouth that the GND pin 9 of LIN chip 3 receives R3 resistance 8 by a stabilivolt 10 connects, storage battery 1 connects the WAKE_N pin 13 to LIN chip 3 by a diode 11 and R2 resistance 12 successively, the mouth of R2 resistance 12 is also by C1 electric capacity 14 ground connection.
The VBAT pin 4 that the RXD pin 6 connecting C2 electric capacity 15, a LIN chip 3 between the input end of stabilivolt 10 and the input end of R3 resistance 8 is also connected to battery power in car 17, LIN chip 3 by a R1 resistance 16 also passes through C3 electric capacity 18 ground connection.
The SLP_N pin 19 of LIN chip 3 is connected with MCU microprocessor 2.
The model of LIN chip 3 is TJA1021T.
The beneficial effects of the utility model: circuit assembly of the present utility model is suitable for after the information of driving arrangement in car is changed by LIN chip to pass to MCU and carry out Logic judgment and control, then MCU again action realize electrical source exchange function.
Claims (4)
1. an automotive engine sparking power supply switch circuit assembly, comprise storage battery (1) and the MCU microprocessor (2) for controlling Switching power gear, it is characterized in that: described storage battery (1) connects the VBAT pin (4) to a LIN chip (3), the TXD pin (5) of described LIN chip (3) sends data-signal and connects to MCU microprocessor (2), the RXD pin (6) of described LIN chip (3) is connected with MCU microprocessor (2) signal, the LIN pin (7) of described LIN chip (3) is connected with driving arrangement in car (20) by R3 resistance (8), the mouth that the GND pin (9) of described LIN chip (3) receives R3 resistance (8) by a stabilivolt (10) connects, described storage battery (1) is successively by a diode (11) and R2 resistance (12) company WAKE_N pin (13) to LIN chip (3), the mouth of described R2 resistance (12) is also by C1 electric capacity (14) ground connection.
2. a kind of automotive engine sparking power supply switch circuit assembly according to claim 1, it is characterized in that: between the input end of described stabilivolt (10) and the input end of R3 resistance (8), connect a C2 electric capacity (15), the RXD pin (6) of described LIN chip (3) is also connected to battery power in car (17) by a R1 resistance (16), and the VBAT pin (4) of described LIN chip (3) is also by C3 electric capacity (18) ground connection.
3. a kind of automotive engine sparking power supply switch circuit assembly according to claim 1 and 2, is characterized in that: the SLP_N pin (19) of described LIN chip (3) is connected with MCU microprocessor (2).
4. a kind of automotive engine sparking power supply switch circuit assembly according to claim 1 and 2, is characterized in that: the model of described LIN chip (3) is TJA1021T.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796748.2U CN204309722U (en) | 2014-12-16 | 2014-12-16 | A kind of automotive engine sparking power supply switch circuit assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796748.2U CN204309722U (en) | 2014-12-16 | 2014-12-16 | A kind of automotive engine sparking power supply switch circuit assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204309722U true CN204309722U (en) | 2015-05-06 |
Family
ID=53132049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420796748.2U Expired - Fee Related CN204309722U (en) | 2014-12-16 | 2014-12-16 | A kind of automotive engine sparking power supply switch circuit assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204309722U (en) |
-
2014
- 2014-12-16 CN CN201420796748.2U patent/CN204309722U/en not_active Expired - Fee Related
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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: 20150506 Termination date: 20181216 |