CN209525430U - For monitoring the circuit of vehicle battery voltage - Google Patents
For monitoring the circuit of vehicle battery voltage Download PDFInfo
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- CN209525430U CN209525430U CN201822037974.3U CN201822037974U CN209525430U CN 209525430 U CN209525430 U CN 209525430U CN 201822037974 U CN201822037974 U CN 201822037974U CN 209525430 U CN209525430 U CN 209525430U
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- circuit
- battery voltage
- vehicle battery
- triode
- resistance
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model provides a kind of for monitoring the circuit of vehicle battery voltage comprising one end is connected to the first circuit, second circuit and the tertiary circuit of vehicle battery voltage and other end ground connection.First circuit is equipped with a resistance and second resistance, and first resistor is connected with vehicle battery voltage, second resistance ground connection.One end connection read module, the other end of second circuit are connected to the first circuit.First circuit is additionally provided with the switch being connected in series with first resistor, second resistance.Tertiary circuit is equipped with the control module opened and closed for control switch.Tertiary circuit is connected with ECU out-put supply, and when ECU out-put supply is activated, control module control switch closure starts to monitor cell voltage；When ECU out-put supply is not activated, control module does not work.The circuit provided by the utility model for being used to monitor vehicle battery voltage, whether the circuit work of monitoring cell voltage is controlled by setting switch, with the leakage current for reducing vehicle.
Description
Technical field
The utility model relates to a kind of for monitoring the circuit of vehicle battery voltage, especially a kind of to be used for switch
Monitor the circuit of vehicle battery voltage.
Background technique
It is shown in Figure 1, the circuit for monitoring vehicle battery voltage 13 ' include one end connect vehicle battery voltage 13 ' and
The first circuit 1 ' and second circuit 2 ' of other end ground connection.First circuit 1 ' be equipped with the first resistor 11 ' that is successively connected in series and
Second resistance 12 '.First resistor 11 ' is connected with vehicle battery voltage 13 ', and second resistance 12 ' is grounded.The one of second circuit 2 '
End connection is connected to first for reading the read module 21 ' of voltage, the other end between first resistor 11 ' and second resistance 12 '
The first circuit 1 ' between resistance 11 ' and second resistance 12 '.Even if this is used to monitor the circuit of vehicle battery voltage 13 ' in ECU
When not working, one part of current can be consumed by remaining on.
Utility model content
The purpose of the utility model is to provide a kind of for reducing vehicle leakage current for monitoring vehicle battery voltage
Circuit.
One aspect according to the present utility model provides a kind of for monitoring the circuit of vehicle battery voltage comprising one
End is connected to the first circuit, second circuit and the tertiary circuit of vehicle battery voltage and other end ground connection.First circuit is set
There are the first resistor and second resistance being successively connected in series.The first resistor is connected with vehicle battery voltage, second resistance
Ground connection.One end connection of the second circuit is for reading the read module of voltage between first resistor and second resistance, another
End is connected to the first circuit between first resistor and second resistance.First circuit is additionally provided with and first resistor, the second electricity
The switch being connected in series is hindered, the tertiary circuit is equipped with the control module opened and closed for control switch, the third electricity
Road is connected with ECU out-put supply.When ECU out-put supply is activated, control module control switch closure；When ECU exports electricity
When source is not activated, control module does not work, and control switch disconnects at this time, i.e. monitoring vehicle battery voltage circuit does not work.
Preferably, the switch is set between first resistor and second resistance.
Preferably, the switch is MOS switch.
Preferably, the circuit for monitoring vehicle battery voltage further includes the first triode and the second triode, and described
One triode is NPN type triode, and second triode is PNP type triode, and the MOS switch is N-channel type, described the
The base stage of one triode connect with ECU out-put supply, the emitter of the first triode ground connection, the collector of the first triode and the
The base stage connection of two triodes, the emitter of the second triode is connect with vehicle battery voltage, the collector of the second triode connects
Ground is connect with the pole G of MOS switch simultaneously, the pole S of MOS switch is grounded, the pole D of MOS switch connection vehicle battery voltage.
Preferably, the circuit for monitoring vehicle battery voltage further includes the emitter and vehicle electrical set on the second triode
3rd resistor between cell voltage and the 4th resistance between the collector and ground of the second triode.
Preferably, the first resistor is 47K, second resistance 10K, 3rd resistor 4.7K, and the 4th resistance is 47K.
Preferably, the ECU out-put supply is 5V.
Preferably, the circuit for monitoring vehicle battery voltage further includes capacitor, one end ground connection of the capacitor, the other end
It is connected to second circuit.
The circuit provided by the utility model for being used to monitor vehicle battery voltage controls monitoring battery by setting switch
Whether the circuit work of voltage, to reduce the leakage current of vehicle.
Detailed description of the invention
Fig. 1 is the prior art for monitoring the circuit of vehicle battery voltage.
Fig. 2 is the first embodiment of the utility model for monitoring the circuit of vehicle battery voltage.
Fig. 3 is the second embodiment of the utility model for monitoring the circuit of vehicle battery voltage.
Specific embodiment
Shown in Figure 2, the utility model provides a kind of for monitoring the circuit of vehicle battery voltage comprising one end connects
It is connected to the first circuit 1, second circuit 2 and the tertiary circuit 3 of vehicle battery voltage 13 and other end ground connection.First circuit 1 is equipped with
The first resistor 11 and second resistance 12 being successively connected in series.First resistor 11 is connected with vehicle battery voltage 13, the second electricity
12 ground connection of resistance.One end of second circuit 2 connects the read module for reading voltage between first resistor 11 and second resistance 12
21, the other end is connected to the first circuit 1 between first resistor 11 and second resistance 12.First circuit 1 is additionally provided with and the first electricity
The switch 14 that resistance 11, second resistance 12 are connected in series.Tertiary circuit 3 is equipped with the control mould opened and closed for control switch 14
Block 31, tertiary circuit 3 and ECU (Electronic Control Unit, electronic control unit) out-put supply 32 are connected.When
When ECU out-put supply 32 is activated, 31 control switch 14 of control module closure；When ECU out-put supply 32 is not activated, at this time
Control module 31 does not work, and control switch 14 disconnects.When ECU work, ECU out-put supply is activated；When ECU does not work,
ECU out-put supply is not activated.By the way that after ECU works on power, control module 31 works, switch 14 is closed the utility model,
Read module 21 starts to read vehicle battery voltage 13 at this time；When ECU does not work, ECU is without out-put supply, and control module 31 is not
Work, switch 14 disconnects at this time, and no electric current flows through on circuit, can control the consumption of leakage current in this way.
Preferably, switch 14 is set between first resistor 11 and second resistance 12.
Shown in Figure 3, switch 14 is MOS switch.Circuit for monitoring vehicle battery voltage includes the first triode
311 and second triode 312.First triode 311 is NPN type triode, and the second triode 312 is PNP type triode, MOS
Switch is N-channel type.The base stage of first triode 311 is connect with ECU out-put supply 32, the emitter of the first triode 311 connects
Ground, the first triode 311 collector connect with the base stage of the second triode 312, the emitter and vehicle of the second triode 312
Cell voltage 13 connects, the grounded collector of the second triode 312 is connect with the pole G (grid) of MOS switch simultaneously, MOS switch
The pole S (source electrode) ground connection, MOS switch the pole D (drain electrode) connection vehicle battery voltage 13.When ECU works on power, (i.e. ECU is exported
Power work) after, generate voltage.The control terminal of suitable first triode 311 is high level at this time, and the first triode 311 is opened, with
The second triode 312 base voltage be low level, the second triode 312 is opened at this time.The control terminal G of MOS switch is extremely high
Level, MOS switch is in and opens, so the circuit of vehicle battery voltage 13 works.Pass through first resistor 11 and second resistance 12
Partial pressure, read module 21 can accurately read the voltage value of vehicle battery voltage 13.Conversely, when ECU does not work, (i.e. ECU is exported
Power supply does not work) when, the first triode 311, second triode 312, MOS switch, which are in, to close, at this time vehicle battery voltage 13
Circuit is also to close, so leakage current generates.
The circuit of voltage for monitoring vehicle battery voltage 13 further includes the emitter and vehicle set on the second triode 312
3rd resistor 313 between cell voltage 13 and the 4th resistance between the collector and ground of the second triode 312
314.Preferably, first resistor 11 is 47K, and second resistance 12 is 10K, and 3rd resistor 313 is 4.7K, and the 4th resistance 314 is
47K.ECU out-put supply 32 is 5V.
The circuit of voltage for monitoring vehicle battery voltage 13 further includes capacitor 22, and one end of capacitor 22 is grounded, is another
End is connected to second circuit 2.
Those skilled in the art can be obvious, can the above exemplary embodiments of the utility model be carry out various modifications and be become
Spirit and scope of the type without departing from the utility model.Accordingly, it is intended to which the utility model covering is made to fall in the appended claims
And its modifications and variations to the utility model within the scope of equivalent arrangements.
Claims (8)
1. a kind of for monitoring the circuit of vehicle battery voltage comprising one end is connected to vehicle battery voltage (13) and the other end
The first circuit (1), second circuit (2) and the tertiary circuit (3) of ground connection, first circuit (1) is equipped with being successively connected in series
First resistor (11) and second resistance (12), the first resistor (11) are connected with vehicle battery voltage (13), second resistance
(12) it is grounded, one end of the second circuit (2) is connected for reading voltage between first resistor (11) and second resistance (12)
Read module (21), the other end be connected to the first circuit (1) between first resistor (11) and second resistance (12), feature
It is, first circuit (1) is additionally provided with the switch (14) being connected in series with first resistor (11), second resistance (12), described
Tertiary circuit (3) is equipped with the control module (31) opened and closed for control switch (14), the tertiary circuit (3) and ECU
Out-put supply (32) is connected, when ECU out-put supply (32) is activated, control module (31) control switch (14) closure, when
When ECU out-put supply (32) is not activated, control module does not work, and control switch disconnects at this time.
2. as described in claim 1 for monitoring the circuit of vehicle battery voltage, which is characterized in that the switch (14) is set to
Between first resistor (11) and second resistance (12).
3. as described in claim 1 for monitoring the circuit of vehicle battery voltage, which is characterized in that the switch (14) is
MOS switch.
4. as claimed in claim 3 for monitoring the circuit of vehicle battery voltage, which is characterized in that it further includes the one or three pole
(311) and the second triode (312) are managed, first triode (311) is NPN type triode, second triode (312)
For PNP type triode, the MOS switch is N-channel type, base stage and ECU out-put supply (32) of first triode (311)
It connects, the emitter of the first triode (311) is grounded, the base of the collector of the first triode (311) and the second triode (312)
Pole connects, the emitter of the second triode (312) is connect with vehicle battery voltage (13), the collector of the second triode (312)
Ground connection connect with the pole G of MOS switch simultaneously, the pole S of MOS switch is grounded, the pole D of MOS switch connection vehicle battery voltage (13).
5. as claimed in claim 4 for monitoring the circuit of vehicle battery voltage, which is characterized in that it further includes being set to second
3rd resistor (313) between the emitter and vehicle battery voltage (13) of triode (312) and it is set to the second triode
(312) the 4th resistance (314) between collector and ground.
6. as claimed in claim 5 for monitoring the circuit of vehicle battery voltage, which is characterized in that the first resistor (11)
For 47K, second resistance (12) is 10K, and 3rd resistor (313) is 4.7K, and the 4th resistance (314) is 47K.
7. as described in claim 1 for monitoring the circuit of vehicle battery voltage, which is characterized in that the ECU out-put supply
It (32) is 5V.
8. as described in claim 1 for monitoring the circuit of vehicle battery voltage, which is characterized in that it further includes capacitor
(22), one end ground connection of the capacitor (22), the other end are connected to second circuit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822037974.3U CN209525430U (en) | 2018-12-05 | 2018-12-05 | For monitoring the circuit of vehicle battery voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822037974.3U CN209525430U (en) | 2018-12-05 | 2018-12-05 | For monitoring the circuit of vehicle battery voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209525430U true CN209525430U (en) | 2019-10-22 |
Family
ID=68226270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822037974.3U Active CN209525430U (en) | 2018-12-05 | 2018-12-05 | For monitoring the circuit of vehicle battery voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209525430U (en) |
-
2018
- 2018-12-05 CN CN201822037974.3U patent/CN209525430U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: Shibeite automotive electronics (Changchun) Co., Ltd. Address before: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee before: Continental Automotive Electronics (Changchun) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee after: WeiPai automotive electronics (Changchun) Co., Ltd Address before: 130033 No. 1981, Wuhan Road, Changchun Economic Development Zone, Jilin, China Patentee before: Shibeite automotive electronics (Changchun) Co., Ltd. |