CN208867859U - A kind of bilateral driving circuit and battery pack with diagnostic function - Google Patents
A kind of bilateral driving circuit and battery pack with diagnostic function Download PDFInfo
- Publication number
- CN208867859U CN208867859U CN201821313180.9U CN201821313180U CN208867859U CN 208867859 U CN208867859 U CN 208867859U CN 201821313180 U CN201821313180 U CN 201821313180U CN 208867859 U CN208867859 U CN 208867859U
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- chip
- driving circuit
- voltage relay
- Prior art date
- 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.)
- Active
Links
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model relates to field of electronics, a kind of bilateral driving circuit and battery pack with diagnostic function is proposed, the circuit includes: single-chip microcontroller, flash driving chip, low side driving chip, the first bleeder circuit, the second bleeder circuit and high-voltage relay.The single-chip microcontroller, flash driving chip, the first bleeder circuit and high-voltage relay form flash driving circuit.The single-chip microcontroller, the low driving circuit when driving chip, the second bleeder circuit and high-voltage relay composition are low.By the voltage of voltage detecting point on detection single-chip microcontroller, can to high-voltage relay, whether normally closed and short trouble are detected, therefore the safety of bilateral driving circuit is improved, so that bilateral driving circuit is more reliable.
Description
Technical field
The utility model relates to field of electronics more particularly to a kind of bilateral driving circuits and electricity with diagnostic function
Chi Bao.
Background technique
New-energy automobile, which refers to, uses unconventional vehicle fuel as a source of power, the dynamic Control and drive of comprehensive vehicle
The advanced technology of dynamic aspect, the advanced automobile with new technology, new construction of the technical principle of formation.Electricity in new-energy automobile
The advantages of electrical automobile is with its energy conservation and cleaning, becomes current auto industry and focuses on the direction studied.
In electric car, power device battery pack is important one of building block.Battery pack is new-energy automobile
Core energy source provides driving electric energy for vehicle.Battery pack is other than it will provide power to electric car, it is also desirable to execute high pressure
The work of power distribution.It when battery pack carries out high voltage power supply assignment, is specifically carried out by high-voltage relay.
High-voltage relay is connect with flash driving circuit and low side driving circuit, flash driving circuit and low side driving electricity
Road is for debugging power, to drive load.Flash driving circuit and high-voltage relay are connected close to the side of power supply, low
Side driving circuit is connect with the side of high-voltage relay closely.Flash driving circuit refers to by directly in electrical appliance, or
By realizing a kind of enabled circuit of driving device in power supply line closure switch before person's driving device.Low side driving circuit is then
It is by after electrical appliance or driving device, realizing a kind of enabled circuit of driving device by closure ground wire.
In the prior art, flash driving circuit and low side driving establish all do not have diagnostic function, and high-voltage relay into
When row closing or opening, it may occur however that before executing high-voltage relay close command, high-voltage relay is surprisingly closed, or is occurred
Short trouble etc., and since flash driving circuit and low side driving circuit do not have diagnostic function, such failure can not be diagnosed
Occur, lead on flash driving circuit and low side driving circuit that there are security risks, has shadow to the safety of battery pack and vehicle
It rings.
Utility model content
The problem of the technical problems to be solved in the utility model is relay drive circuit fault detection.It is above-mentioned in order to solve
Problem, the bilateral driving circuit and battery pack, the utility model that the utility model proposes a kind of with diagnostic function are specifically
It is realized with following technical solution:
The first aspect of the utility model proposes a kind of bilateral driving circuit with diagnostic function, the circuit packet
It includes: single-chip microcontroller, flash driving chip, low side driving chip, the first bleeder circuit, the second bleeder circuit and high-voltage relay；
The single-chip microcontroller, flash driving chip, the first bleeder circuit and high-voltage relay form flash driving circuit, described
Single-chip microcontroller connects flash driving chip, one end of the flash driving chip connection high-voltage relay connection, first partial pressure
Circuit connection high-voltage relay and flash driving chip, first bleeder circuit are also connected with single-chip microcontroller；
The single-chip microcontroller, the low driving circuit when driving chip, the second bleeder circuit and high-voltage relay composition are low, it is described
Single-chip microcontroller is also connected with low side driving chip, one end of the low side driving chip connection high-voltage relay, the second partial pressure electricity
Road connection high-voltage relay and low-voltage driving chip, second bleeder circuit are also connected with single-chip microcontroller.
Further, first bleeder circuit includes first resistor and second resistance, the first resistor and the second electricity
Resistance series connection.
Further, one end connection flash driving chip and high-voltage relay of the first resistor, the first resistor
The other end connect second resistance, the second resistance the other end ground connection.
Further, the single-chip microcontroller has first voltage test point, is equipped between the first resistor and second resistance
One connecting line, the connecting line connect first voltage test point.
Further, second bleeder circuit includes 3rd resistor, the 4th resistance and reference power source, the 3rd resistor
With the 4th resistor coupled in parallel.
Further, one end connection single-chip microcontroller, low side driving chip and the high-voltage relay of the 3rd resistor, described the
The other end of three resistance connects reference power source；
One end connection single-chip microcontroller, low side driving chip and the high-voltage relay of 4th resistance, the 4th resistance
Other end ground connection.
Further, the single-chip microcontroller has second voltage test point, and the 3rd resistor connects second voltage test point,
4th resistance connects second voltage test point.
Further, on the single-chip microcontroller also there is piece interface, master to be selected to go out from incoming interface, master to enter from outgoing interface and clock to connect
Mouthful.
Further, described is selected interface, the master to go out to enter from incoming interface, the master from outgoing interface and the clock interface
It is all connected with flash driving chip and low side driving chip.
Specifically, for flash driving circuit, when being detected, after low pressure powers on, not closed high-voltage relay
It before, is 0 in the voltage that first voltage test point detects, then it represents that the flash drive output mouth is asked without unexpectedly closure
Topic.
After low pressure powers on, before not closed high-voltage relay, if detecting on first voltage test point there is electricity at this time
Pressure represents and there is partial pressure on bleeder circuit, then it is possible that being there are problems that high-voltage relay is surprisingly closed, or show height
There is the failure of short circuit in side driving circuit.
For low side driving circuit, when being detected, before high-voltage relay is not closed, to second voltage test point
Voltage detected, when second voltage test point detects voltage, illustrating high-voltage relay, there is no unexpected closures.?
When high-voltage relay is closed, two resistance do not divide reference power source, the electricity that second voltage test point detects at this time
Pressure is 0.
Before high-voltage relay is not closed, the voltage of second voltage test point is detected, when second voltage detects
When point does not detect voltage, illustrate that short trouble occurs for low side driving circuit.
The second aspect of the utility model proposes a kind of battery pack, and the battery pack has diagnosis function with above-mentioned
The bilateral driving circuit of energy.
The battery pack is able to carry out high voltage power supply distribution, and the battery pack realizes high voltage power supply by high-voltage relay
Distribution, high-voltage relay is controlled.
The bilateral driving circuit is after low pressure powers on, before not closed high-voltage relay, to first voltage test point and
Second source test point is detected, and whether detects voltage by first voltage test point and second voltage test point, can be with
Judge the problem of high-voltage relay is with the presence or absence of unexpected closure, and judges that bilateral driving circuit with the presence or absence of the failure of short circuit, makes
High-voltage relay can operational excellence, and run under secure conditions, therefore reduce battery pack and carry out high voltage power supply point
The risk of timing, so that safer when battery pack progress high voltage power supply distribution.
By adopting the above technical scheme, a kind of bilateral driving circuit and battery with diagnostic function described in the utility model
Packet, has the following beneficial effects:
1) the utility model proposes a kind of bilateral driving circuit with diagnostic function, the bilateral driving circuit include
Flash driving circuit and low side driving circuit, the flash driving circuit and low side driving circuit pass through bleeder circuit and feedback electricity
Whether self diagnosis may be implemented in road, can normal to high-voltage relay by the voltage of voltage detecting point on detection single-chip microcontroller
Closure and short trouble are detected, therefore improve the safety of bilateral driving circuit, so that bilateral driving circuit more may be used
It leans on；
2) the utility model proposes a kind of battery pack, the battery pack has flash driving circuit and low side driving electricity
Road, the flash driving circuit and low side driving circuit have diagnostic function, so that battery pack is carrying out high pressure by relay
When power distribution, can obtain relay whether the prompting of normally closed and short trouble, therefore improve security performance.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural representation of the bilateral driving circuit with diagnostic function provided by the embodiment of the utility model
Figure；
Fig. 2 is that single-chip microcontroller provided by the embodiment of the utility model shows with what flash driving chip and low side driving chip were connect
It is intended to.
Further supplementary explanation is done to attached drawing below:
1- single-chip microcontroller, 2- flash driving chip, the low side driving chip of 3-, 4- high-voltage relay, 5- first resistor, 6- second
Resistance, 7- 3rd resistor, the 4th resistance of 8-, 9- first voltage test point, 10- second voltage test point.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise for not making creative work
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Embodiment 1:
A kind of bilateral driving circuit with diagnostic function is provided in the utility model embodiment, as shown in Figure 1, described
Circuit includes: single-chip microcontroller 1, flash driving chip 2, low side driving chip 3, the first bleeder circuit, the second bleeder circuit and high pressure
Relay 4.
The single-chip microcontroller 1, flash driving chip 2, the first bleeder circuit and high-voltage relay 4 form flash driving circuit,
The single-chip microcontroller 1 connects flash driving chip 2, and the flash driving chip 2 connects one end that high-voltage relay 4 connects.It is described
First bleeder circuit connection high-voltage relay 4 and flash driving chip 2, first bleeder circuit are also connected with single-chip microcontroller 1.
The single-chip microcontroller 1, the low driving circuit when driving chip 3, the second bleeder circuit and high-voltage relay 4 form low,
The single-chip microcontroller 1 is also connected with low side driving chip 3, and the low side driving chip 3 connects one end of high-voltage relay 4.Described
Two bleeder circuits connection high-voltage relay 4 and low-voltage driving chip 3, second bleeder circuit are also connected with single-chip microcontroller 1.
The single-chip microcontroller 1 is control module, and the single-chip microcontroller 1 passes through to flash driving chip 2 and low side driving chip 3
Control realize that the control of entire flash and the control of entire bottom edge, the connection that the high-voltage relay 4 plays high tension loop are led
Logical effect.
As shown in Figure 1, first bleeder circuit includes first resistor 5 and second resistance 6.The first resistor 5 and
The series connection of two resistance 6, the first resistor 5 connect with high-voltage relay 4 and low-voltage driving chip, and the first resistor 5 connects the
Two resistance 6, the other end ground connection of the second resistance 6.A connecting line is equipped between the first resistor 5 and second resistance 6,
The connecting line is connected on single-chip microcontroller 1.
Second bleeder circuit includes 3rd resistor 7, the 4th resistance 8 and reference power source.The 3rd resistor 7 and the 4th
Resistance 8 is in parallel, one end connection single-chip microcontroller 1, high-voltage relay 4 and the low-voltage driving chip of the 3rd resistor 7, the third electricity
The other end of resistance 7 connects reference power source.One end connection single-chip microcontroller 1, high-voltage relay 4 and the low-voltage driving of 4th resistance 8
Chip, the other end ground connection of the 4th resistance 8.
The single-chip microcontroller 1 is equipped with first voltage test point 9 and second voltage test point 10, and first bleeder circuit connects
First voltage test point 9 is connect, i.e., the connecting line connection between the first resistor 5 and second resistance 6 in described first bleeder circuit
On first voltage test point 9, what is be able to detect that in voltage detecting point is the partial pressure on the first bleeder circuit, can pass through inspection
The voltage for surveying the point judges whether break down on flash driving circuit.
Second bleeder circuit connects second voltage test point 10, the i.e. 3rd resistor 7 and the 4th of the second bleeder circuit
Resistance 8 is connected on second voltage test point 10, and what is be able to detect that in voltage detecting point is the partial pressure on the second bleeder circuit,
It can judge whether break down on the driving circuit of low side by detecting the voltage of the point.
As shown in Fig. 2, on the single-chip microcontroller 1 also there is piece interface, master to be selected to go out from incoming interface, master to enter from outgoing interface and clock
Interface, described is selected interface, the master to go out from incoming interface, the master to enter to connect flash driving with the clock interface from outgoing interface
Chip 2 and low side driving chip 3.It is main equipment output data that the master, which goes out from incoming interface, from the interface of equipment input data,
It is main equipment input data that the master, which enters from outgoing interface, from the interface of equipment output data.
For flash driving circuit, when being detected, after low pressure powers on, before not closed high-voltage relay 4, by
In one end of the close power supply of the flash driving chip 2 connection high-voltage relay 4, under normal circumstances, due to high-voltage relay 4
It is not closed, there is no partial pressures on bleeder circuit at this time, therefore can't detect voltage on first voltage test point 9, in the first electricity
The voltage that pressure test point 9 detects is 0, then indicates that the flash drive output mouth does not have unexpected closed-ended question.
After low pressure powers on, before not closed high-voltage relay 4, due to the flash driving chip 2 connection high pressure after
One end of the close power supply of electric appliance 4, when high-voltage relay 4 is not closed, the voltage that should be detected on first voltage test point 9
It is 0.If detecting there is voltage in voltage detecting point at this time, represent and there is partial pressure on bleeder circuit, then it is possible that being the presence of height
The problem of potential relay 4 is surprisingly closed.At this point, high-voltage relay 4 has occurred and that exception, the finger that controller issues in this case
It enables to disconnect, actually detected arrive is closed state, at this time reports error condition, reports high-voltage relay 4 that event occurs
Barrier.
If being higher than some numerical value in the voltage that the first test point detects, represent and there is partial pressure on bleeder circuit, the
The partial pressure can be detected at one voltage detecting point 9, it is also possible to which flash driving circuit has the failure of short circuit, drives in flash
Circuit is deposited in case of a short circuit, and high-voltage relay 4 may there is no break down.Flash driving circuit is due to short circuit, nearly
The potential conduction of power supply side has arrived on bleeder circuit, so that voltage point occurs before high-voltage relay 4 is closed in bleeder circuit
Pressure.
For low side driving circuit, when being detected, before high-voltage relay 4 is not closed, second voltage is detected
The voltage of point 10 is detected, and when second voltage test point 10 detects voltage, illustrates that 3rd resistor 7 and the 4th resistance 8 connect
There are voltage value, the voltage value is partial pressure of the two resistance to reference power source at the place of connecing, and illustrates that low side driving circuit is in just
There is no unexpected closures for normal off-state, i.e. high-voltage relay 4.When high-voltage relay 4 is closed, two resistance pair
Reference power source does not divide, and the voltage that second voltage test point 10 detects at this time is 0.
Before high-voltage relay 4 is not closed, the voltage of second voltage test point 10 is detected, when second voltage is examined
When measuring point 10 does not detect voltage, i.e., when voltage is 0, illustrate that there is no voltages for 3rd resistor 7 and 8 junction of the 4th resistance
Value, i.e. two resistance are 0 to the partial pressure of reference power source, illustrate that short trouble occurs for low side driving circuit.
When there is open circuit failure in low side driving circuit, before high-voltage relay 4 is not closed, second voltage is detected
The voltage of point 10 is detected, and is also able to detect that is 0 voltage on second voltage test point 10 at this time, therefore can go out
It is now mistakenly considered the problem of short circuit, needs to report driving circuit failure at this time, when carrying out malfunction elimination, judgement is that short trouble is made
At the voltage detected be 0 or open circuit fault to cause the voltage detected be 0.
A kind of bilateral driving circuit with diagnostic function, the circuit described in the utility model embodiment pass through in height
The first bleeder circuit is provided between side driving chip 2 and high-voltage relay 4, and in low side driving chip 3 and high-voltage relay 4
Between equally be provided with the second bleeder circuit, first bleeder circuit and the second bleeder circuit are connected to the electricity on single-chip microcontroller 1
Press test point.After low pressure powers on, before not closed high-voltage relay 4, voltage detecting point is detected, voltage detecting is passed through
Whether point detects voltage, it can be determined that the problem of high-voltage relay 4 is with the presence or absence of unexpected closure, and judge bilateral driving circuit
With the presence or absence of the failure of short circuit, so that relay drive circuit is safer and reliable.
Embodiment 2:
A kind of battery pack is provided in the utility model embodiment, the battery pack has above-mentioned bilateral driving circuit,
The bilateral driving circuit has diagnostic function.
The battery pack is able to carry out high voltage power supply distribution, and the battery pack realizes high-voltage electricity by high-voltage relay 4
The distribution in source controls high-voltage relay 4.
The bilateral driving circuit is after low pressure powers on, before not closed high-voltage relay 4, to first voltage test point 9
It is detected with second source test point, whether voltage is detected by first voltage test point 9 and second voltage test point 10,
It may determine that the problem of high-voltage relay 4 is with the presence or absence of unexpected closure, and judge bilateral driving circuit with the presence or absence of the event of short circuit
Barrier, enables 4 operational excellence of high-voltage relay, and runs under secure conditions, therefore reduces battery pack and carry out high pressure
Risk when power distribution, so that safer when battery pack progress high voltage power supply distribution.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of bilateral driving circuit with diagnostic function, which is characterized in that the circuit includes: single-chip microcontroller (1), flash drive
Dynamic chip (2), low side driving chip (3), the first bleeder circuit, the second bleeder circuit and high-voltage relay (4)；
The single-chip microcontroller (1), flash driving chip (2), the first bleeder circuit and high-voltage relay (4) composition flash driving electricity
Road, the single-chip microcontroller (1) connect flash driving chip (2), flash driving chip (2) connection high-voltage relay (4) connection
One end, first bleeder circuit connection high-voltage relay (4) and flash driving chip (2), first bleeder circuit is also
It connects single-chip microcontroller (1)；
The single-chip microcontroller (1), the low driving circuit when driving chip (3), the second bleeder circuit and high-voltage relay composition are low, institute
It states single-chip microcontroller (1) and is also connected with low side driving chip (3), the low side driving chip (3) connects the one end of high-voltage relay (4),
Second bleeder circuit connection high-voltage relay (4) and low-voltage driving chip (3), second bleeder circuit are also connected with monolithic
Machine (1).
2. a kind of bilateral driving circuit with diagnostic function according to claim 1, which is characterized in that described first point
Volt circuit includes first resistor (5) and second resistance (6), and the first resistor (5) and second resistance (6) are connected.
3. a kind of bilateral driving circuit with diagnostic function according to claim 2, which is characterized in that first electricity
Hinder one end connection flash driving chip (2) and the high-voltage relay (4) of (5), the other end connection second of the first resistor (5)
Resistance (6), the other end ground connection of the second resistance (6).
4. a kind of bilateral driving circuit with diagnostic function according to claim 3, which is characterized in that the single-chip microcontroller
(1) there are first voltage test point (9), a connecting line is equipped between the first resistor (5) and second resistance (6), it is described
Connecting line connects first voltage test point (9).
5. a kind of bilateral driving circuit with diagnostic function according to claim 1, which is characterized in that described second point
Volt circuit includes 3rd resistor (7), the 4th resistance (8) and reference power source, and the 3rd resistor (7) and the 4th resistance (8) are in parallel.
6. a kind of bilateral driving circuit with diagnostic function according to claim 5, which is characterized in that the third electricity
Hinder one end connection single-chip microcontroller (1), low side driving chip (3) and the high-voltage relay (4) of (7), the 3rd resistor (7) it is another
End connection reference power source；
One end connection single-chip microcontroller (1) of 4th resistance (8), low side driving chip (3) and high-voltage relay (4), described the
The other end of four resistance (8) is grounded.
7. a kind of bilateral driving circuit with diagnostic function according to claim 6, which is characterized in that the single-chip microcontroller
(1) there are second voltage test point (10), the 3rd resistor (7) connects second voltage test point (10), the 4th resistance
(8) second voltage test point (10) are connected.
8. a kind of bilateral driving circuit with diagnostic function according to claim 1, which is characterized in that the single-chip microcontroller
(1) on also there is piece interface, master to be selected to go out from incoming interface, master to enter from outgoing interface and clock interface.
9. a kind of bilateral driving circuit with diagnostic function according to claim 8, which is characterized in that described choosing connects
Mouth, the master go out to enter from incoming interface, the master from outgoing interface and the clock interface to be all connected with flash driving chip (2) and low side
Driving chip (3).
10. a kind of battery pack, which is characterized in that the battery pack with described in claims 1 to 9 any one have diagnosis
The bilateral driving circuit of function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821313180.9U CN208867859U (en) | 2018-08-10 | 2018-08-10 | A kind of bilateral driving circuit and battery pack with diagnostic function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821313180.9U CN208867859U (en) | 2018-08-10 | 2018-08-10 | A kind of bilateral driving circuit and battery pack with diagnostic function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208867859U true CN208867859U (en) | 2019-05-17 |
Family
ID=66464680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821313180.9U Active CN208867859U (en) | 2018-08-10 | 2018-08-10 | A kind of bilateral driving circuit and battery pack with diagnostic function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208867859U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111123151A (en) * | 2019-12-26 | 2020-05-08 | 东软睿驰汽车技术（沈阳）有限公司 | Fault detection circuit and fault detection method |
| CN111880088A (en) * | 2020-07-23 | 2020-11-03 | 上海英恒电子有限公司 | Relay bilateral control and diagnosis circuit and method and battery management system |
| CN112444720A (en) * | 2019-08-30 | 2021-03-05 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method of electric control device |
| CN113752838A (en) * | 2020-05-29 | 2021-12-07 | 宁德时代新能源科技股份有限公司 | Driving circuit |
| CN114783829A (en) * | 2022-05-07 | 2022-07-22 | 东软睿驰汽车技术（沈阳）有限公司 | Relay drive circuit and diagnosis method thereof |
| CN116430249A (en) * | 2023-03-13 | 2023-07-14 | 深圳龙电华鑫控股集团股份有限公司 | Voltage detection method, modeling method of voltage detection model and electronic equipment |
-
2018
- 2018-08-10 CN CN201821313180.9U patent/CN208867859U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112444720A (en) * | 2019-08-30 | 2021-03-05 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method of electric control device |
| CN112444720B (en) * | 2019-08-30 | 2022-06-03 | 宁德时代新能源科技股份有限公司 | Detection circuit and detection method of electric control device |
| US11435389B2 (en) | 2019-08-30 | 2022-09-06 | Contemporary Amperex Technology Co., Limited | Electrical control device detection circuit, detection method, and electric vehicle |
| CN111123151A (en) * | 2019-12-26 | 2020-05-08 | 东软睿驰汽车技术（沈阳）有限公司 | Fault detection circuit and fault detection method |
| CN113752838A (en) * | 2020-05-29 | 2021-12-07 | 宁德时代新能源科技股份有限公司 | Driving circuit |
| CN113752838B (en) * | 2020-05-29 | 2023-10-03 | 宁德时代新能源科技股份有限公司 | Driving circuit |
| US11996833B2 (en) | 2020-05-29 | 2024-05-28 | Contemporary Amperex Technology Co., Limited | Drive circuit |
| CN111880088A (en) * | 2020-07-23 | 2020-11-03 | 上海英恒电子有限公司 | Relay bilateral control and diagnosis circuit and method and battery management system |
| CN114783829A (en) * | 2022-05-07 | 2022-07-22 | 东软睿驰汽车技术（沈阳）有限公司 | Relay drive circuit and diagnosis method thereof |
| CN114783829B (en) * | 2022-05-07 | 2024-05-28 | 东软睿驰汽车技术（沈阳）有限公司 | Relay driving circuit and diagnosis method thereof |
| CN116430249A (en) * | 2023-03-13 | 2023-07-14 | 深圳龙电华鑫控股集团股份有限公司 | Voltage detection method, modeling method of voltage detection model and electronic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208867859U (en) | A kind of bilateral driving circuit and battery pack with diagnostic function | |
| CN104391241B (en) | A kind of electrokinetic cell high-voltage relay state detection circuit and its method | |
| CN106990353A (en) | A kind of relay fault detecting circuit and the relay with the circuit | |
| CN104133131B (en) | A kind of IGBT driving malfunctions detection and diagnostic method | |
| CN110907813B (en) | Diagnosis method for relay in battery management system | |
| CN207232324U (en) | A kind of fault diagnosis circuit of low side driving | |
| CN110007663A (en) | The output switch parameter dynamic diagnostics system and method for nuclear safe level DCS | |
| CN102866353A (en) | Device and method for state detection of main loop relay of direct-current power supply system | |
| CN205941816U (en) | Detect circuit of high -pressure contactor contact state | |
| CN207404646U (en) | A kind of elevator seals door lock detecting device | |
| CN108072822B (en) | Method for diagnosing stuck fault of main circuit contactor of transmission system | |
| CN108696155A (en) | The fault detection method of converter apparatus and power component | |
| CN205593736U (en) | Elevator hauler stopper life testing equipment | |
| CN212623739U (en) | Platform management system | |
| CN102969693B (en) | Electronic control valve driving protective circuit of railway vehicles | |
| CN107492684A (en) | The battery management system and vehicle of electrokinetic cell | |
| CN105946584A (en) | Adhesion detection protective circuit for automobile battery relays | |
| CN208522052U (en) | A kind of low side driving circuit and battery pack with diagnostic function | |
| CN209044025U (en) | Closing self-checking device for bus coupler switch of dual-power direct-current system | |
| CN106476626A (en) | Railcar auxiliary power supply extends system | |
| CN208539051U (en) | A kind of flash driving circuit and battery pack with diagnostic function | |
| CN204696641U (en) | A kind of equipment for the protection of high-tension battery using electricity system and the vehicle with this equipment | |
| CN203543694U (en) | High voltage power distribution control device | |
| CN208723536U (en) | A kind of electromotor integrated protection system for extractive equipment | |
| CN209001614U (en) | A kind of charging control circuit of charger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |