CN208232836U - A kind of distributed electrical source control circuit - Google Patents
A kind of distributed electrical source control circuit Download PDFInfo
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- CN208232836U CN208232836U CN201820549531.XU CN201820549531U CN208232836U CN 208232836 U CN208232836 U CN 208232836U CN 201820549531 U CN201820549531 U CN 201820549531U CN 208232836 U CN208232836 U CN 208232836U
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- power supply
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- control circuit
- host scm
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Abstract
The utility model relates to field of electronics, propose a kind of distributed electrical source control circuit.The distributed electrical source control circuit includes voltage input interface, power supply module, CAN transmission circuit, the first power supply chip, second source chip, OR circuit, host scm and CVS.The voltage input interface connects the first power supply chip, and first power supply chip connects CVS, and the voltage input interface is also connected with second source chip, and the second source chip connects host scm.After the host scm detects various wake-up signals, sends enable signal and pass through second source chip and be transferred to the first power supply chip, the first power supply chip is powered to CVS.The utility model controls host scm and the power supply of CVS using two power supply chips respectively, and host scm is enabled to control the power supply of CVS, reduces the power consumption of battery management system, improves the safety of battery management system.
Description
Technical field
The utility model relates to field of electronics more particularly to a kind of distributed electrical source control circuits.
Background technique
New-energy automobile is with it pollutes small economy height and receives significant attention, and wherein electric car has begun into vapour
Car market, but the relevant technologies also need it is further perfect.In electric car, most important structure composition is battery pack,
Battery pack can provide power to electric car, play an important role to the performance of electric car.Electricity is equipped in battery pack
The case where pond management module, battery management module can monitor battery, is managed the charge and discharge of battery.
For entire battery management system, the power supply of each subassembly of battery management system is particularly important, because
This, the power supply system of entire battery management system is required to identify multiple wake sources, and adopts for mainboard itself, CVS and voltage
Collect module for power supply.
In battery management module in the prior art, the power supply of monomer voltage acquisition module is mainly from battery mould
Group, the power supply of main module uses a kind of power supply chip then to realize, and the power supply of the part CVS is then to use to come independently
The power distribution and administrative unit of plate.
Under this power supply allocation plan, the power supply on CVS be exactly directly from LDO power supply mould module drawn a power supply line to
CVS, this scheme will cause the power supply on CVS and always exist, and individual control processing can not be done to power unit,
Therefore the power consumption of entire battery management system is relatively large, then this management system when running on vehicle, will give
The power supply of entire low-pressure system brings huge challenge.
In addition, all modules of mainboard and the power supply module of CVS all use the same power supply under above-mentioned power supply plan
The scheme that module is powered, considers from functional safety, and this power supply plan does not have good safety, be easy to cause peace
Full hidden danger.
Utility model content
The technical problems to be solved in the utility model is that the power consumption of existing power supply plan is larger and existing power supply plan
There are problems that security risk, to solve the above-mentioned problems, the utility model proposes a kind of distributed electrical source control circuits.This
Utility model is specifically to be realized with following technical solution:
The utility model proposes a kind of distributed electrical source control circuit, the distributed electrical source control circuit includes voltage
Input interface, power supply module, CAN transmission circuit, the first power supply chip, second source chip, OR circuit, host scm and
CVS (charging voltage detection input)；
The voltage input interface connects the first power supply chip, the first power supply chip connection CVS (charging voltage detection
Input), the voltage input interface is also connected with second source chip, the second source chip connection host scm and various plates
Carry equipment.First power supply chip is CVS power supply, and the second source chip is that host scm and various onboard equipment supply
Electricity.
First power supply chip has enable end, and the second source chip has enabled output end, second electricity
The enabled output end of source chip connects the enable end of the first power supply chip.The host scm exports enable signal, described enabled
Signal is input to second source chip, and the second source chip exports enable signal to the first power supply chip, obtains enabled letter
After number, the first power supply chip just starts as CVS power supply.
Specifically, after the host scm detects the wake-up signal that all kinds of wake sources export, pass through second source chip
Enable signal is exported to the first power supply chip, the first power supply chip is CVS power supply.When second source chip output enable signal arrives
First power supply chip, the first power supply chip can just power for CVS, i.e. control of the power supply of CVS by host scm.
Further, the host scm is equipped with power control line, the other end connection of the power control line or door
Circuit.The OR circuit connects second source chip.The host scm controls OR circuit by power control line.It is described
Host scm exports enable signal by power control line, and enable signal is input to second source chip by OR circuit.The
Enable signal is finally input in the first power supply chip by two power supply chips, and the first power supply chip starts as CVS power supply.
Further, diode, the power supply module and second are equipped between the power supply module and the first power supply chip
Diode is equipped between power supply chip.
Further, the voltage input interface is also connected with power supply module, and CAN transmitting-receiving electricity is equipped in the power supply module
Road.The CAN transmission circuit connection OR circuit being arranged in power supply module, the CAN transmission circuit are also connected with main monolithic
Machine.The CAN transmission circuit is for exporting CAN network wake-up signal.
Further, the distributed electrical source control circuit further includes RTC (real-time timepiece chip), and the RTC is (when real-time
Clock chip) OR circuit is connected, the RTC (real-time timepiece chip) is also connected with host scm.The RTC (real-time timepiece chip)
RTC wake-up signal is exported to host scm and OR circuit.
Further, the distributed electrical source control circuit further include key wake-up circuit, vehicle-mounted charge wake-up circuit and
Quick charge wake-up circuit.
Further, the key wake-up circuit is separately connected OR circuit and host scm, and the vehicle-mounted charge wakes up
Circuit is separately connected OR circuit and host scm, and the quick charge wake-up circuit is separately connected OR circuit and main monolithic
Machine.The key wake-up circuit, vehicle-mounted charge wake-up circuit and quick charge wake-up circuit export key wake-up signal, vehicle respectively
Charging wake-up signal and quick charge wake-up signal are carried to host scm and OR circuit.
Further, the second source chip is equipped with CAN transmission circuit, and the CAN transmission circuit connects main monolithic
Machine.The CVS is equipped with CAN transmission circuit, and the CAN transmission circuit connects host scm.
By adopting the above technical scheme, a kind of public supervisory methods of vehicle in use described in the utility model and system,
It has the following beneficial effects:
1) in the present invention, by two power supply chips come the confession of all modules and CVS on respectively BMU mainboard
Electricity, and make the power supply of CVS that can be reduced the power consumption of battery management system by the control of host scm；
2) in the present invention, by two power supply chips come the confession of all modules and CVS on respectively BMU mainboard
Electricity realizes the power supply control of entire plank well, improves the power supply and security level of entire battery management system.
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 distributed electrical source control circuit provided by the embodiment of the utility model；
Fig. 2 is a kind of flow chart of distributed electrical operated control method provided by the embodiment of the utility model.
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.
In the description of the utility model embodiment, it is to be understood that term " on ", "lower", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.In the description of the utility model embodiment,
The meaning of " plurality " is two or more, unless otherwise specifically defined.In addition, term " includes " and " having " with
And their any deformation, it is intended that cover it is non-exclusive include, for example, contain the process of a series of steps or units,
Method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include not arranging clearly
Other step or units out or intrinsic for these process, methods, product or equipment.
In the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " connects " connected "
Connect ", the terms such as " fixation " shall be understood in a broad sense, for example, can make to be fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can make to be connected directly, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, may be used
To understand the concrete meaning of above-mentioned term in the present invention as the case may be.
Embodiment 1
A kind of distributed electrical source control circuit is provided in the utility model embodiment, as shown in Figure 1, the distributed electrical
Source control circuit include voltage input interface, power supply module, CAN transmission circuit, the first power supply chip, second source chip or
Gate circuit, host scm and CVS (charging voltage detection input).The CAN transmission circuit can integrate in power supply module.
The voltage input interface input 12V often electricity input, the 12V often electricity input connection the first power supply chip and second
Power supply chip, the normal electricity of 12V input to the first power supply chip and the power supply of second source chip, the first power supply chip connection
CVS (charging voltage detection input), the second source chip connects host scm, and the second source chip is also connected with first
Power supply chip.First power supply chip is used for CVS (charging voltage detection input) power supply, and the second source chip is to main monolithic
Machine and other various onboard equipment power supplies.
First power supply chip has enable end, and the second source chip has enabled output end, second electricity
The enabled output end of source chip connects the enable end of the first power supply chip.The host scm exports enable signal, described enabled
Signal is input to second source chip, and the second source chip exports enable signal to the first power supply chip, obtains enabled letter
After number, the first power supply chip just starts as CVS power supply.
Further, the host scm is equipped with power control line, the other end connection of the power control line or door
Circuit.The OR circuit connects second source chip.The host scm controls OR circuit by power control line.It is described
Host scm exports enable signal by power control line, and enable signal is input to second source chip by OR circuit.The
Enable signal is finally input in the first power supply chip by two power supply chips, and the first power supply chip starts as CVS power supply.
Further, it often is equipped with diode between electric input port and the first power supply chip in the 12V, the diode is used for
Control current direction.In the 12V, often electric input port and second source chip chamber also are provided with diode, and the diode is for controlling
Current direction processed guarantees that the normal electricity of 12V inputs to power supply chip power supply.
The power supply module receives 12V often electricity input, also is provided with CAN transmission circuit in the power supply module, the CAN is received
Power Generation Road connects OR circuit, and the OR circuit connects second source chip.The CAN transmission circuit output CAN network is called out
Awake signal.
The distributed electrical source control circuit further includes that key wake-up circuit, vehicle-mounted charge wake-up circuit and quick charge are called out
Awake circuit.The key wake-up circuit is separately connected OR circuit and host scm, and the vehicle-mounted charge wake-up circuit connects respectively
OR circuit and host scm are connect, the quick charge wake-up circuit is separately connected OR circuit and host scm.The key
Wake-up circuit, vehicle-mounted charge wake-up circuit and quick charge wake-up circuit export key wake-up signal respectively, vehicle-mounted charge wakes up
Signal and quick charge wake-up signal.
The distributed electrical source control circuit further includes RTC (real-time timepiece chip), and the RTC (real-time timepiece chip) is even
OR circuit and host scm are connect, the RTC (real-time timepiece chip) exports RTC wake-up signal.
CAN network wake-up signal is called out with RTC wake-up signal, key wake-up signal, vehicle-mounted charge wake-up signal, quick charge
The wake-up signals such as signal of waking up are input in OR circuit and host scm together.
The host scm is equipped with interface, wakes up letter for receiving CAN network wake-up signal, RTC wake-up signal, key
Number, vehicle-mounted charge wake-up signal and quick charge wake-up signal.
Various wake-up signals are input in host scm by respective interface.When host scm detects various wake sources
After the wake-up signal of sending, an enable signal is exported into the first power supply chip by second source chip, the first electricity of starting
Source chip, the first power supply chip give CVS (charging voltage detection input) power supply, CVS (charging voltage detection input) detection high pressure
Information.
(charging voltage detection is defeated by the part power supply that can be controlled separately itself in the power module of main control module and CVS
Entering) power supply of part can be very good the power supply control for realizing entire controller from this framework, so that CVS (charging electricity
Pressure detection input) power supply can be controlled by host scm, reduce the power consumption of battery management system.The mainboard of BMS is
Host scm, that is, BMU (battery management unit).
It will be to the power module that CVS (charging voltage detection input) powers independently of BMU's (battery management unit) itself
Power pack realizes the power supply control of entire plank well, improves power supply and safety of entire battery management system etc.
Grade has relatively good comprehensive benefit.In the utility model, by the power supply of main control module and CVS (charging voltage detection inputs)
Power supply accomplish relatively independent, and control of the power supply of CVS (charging voltage detection input) by BMU is allowed, thus well
Realize the whole synthesis control of entire BMS (battery management system).
Further, the second source chip is equipped with CAN transmission circuit, and the CAN transmission circuit connects main monolithic
Machine.The CVS is equipped with CAN transmission circuit, and the CAN transmission circuit connects host scm.
Embodiment 2
A kind of method of distributed generation resource control is proposed in the utility model embodiment, as shown, the method packet
It includes:
S1. power supply module is powered to second source chip.
S2. the CAN transmission circuit exports CAN network wake-up signal, and all kinds of wake-up source signals are input to main monolithic
In machine.
S3. the host scm controls the second source chip and exports enable signal to the first power supply chip, the first electricity
Source chip is started to work, and is powered to CVS.
The utility model uses a power supply core that hard signal output function may be implemented with CAN communication function
Piece can integrate a CAN transmitting-receiving control circuit inside the power supply chip.Logic is as follows, and the power pack of CVS is by BMS's
Mainboard control, after mainboard detects the various wake sources from vehicle, so that it may export one by second source chip and enable
For signal to the first power supply chip, it is CVS (charging voltage detection input) that the first power supply chip is started to work after obtaining enable signal
Power supply, CVS (charging voltage detection input) can work together and detect high pressure information, have good robustness.BMS
Mainboard, that is, host scm, that is, BMU (battery management unit).
In the power module of main control module, itself part power supply and the power supply of the part CVS can be controlled separately, from this
In kind framework, the power supply control for realizing entire controller can be very good, so that the power supply of CVS is can be by host scm control
System, reduce the power consumption of battery management system.
It will be to the power module that CVS (charging voltage detection input) powers independently of BMU's (battery management unit) itself
Power pack realizes the power supply control to entire mainboard well, improves the power supply and safety of entire battery management system
Grade has relatively good comprehensive benefit.In the utility model, by the power supply of main control module, (charging voltage detection is defeated with CVS
Enter) power supply accomplish relatively independent, and control of the power supply of CVS (charging voltage detection input) by BMU is allowed, thus very well
The entire BMS of realization (battery management system) whole synthesis control.
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 distributed electrical source control circuit, which is characterized in that the distributed electrical source control circuit includes that voltage input connects
Mouth, power supply module, CAN transmission circuit, the first power supply chip, second source chip, OR circuit, host scm and CVS；
First power supply chip includes energization input, power supply output end and enable end, and the energization input connects voltage
Input interface, the power supply output end connect CVS；
The second source chip includes energization input, power supply output end and enabled output end, the energization input connection
Voltage input interface, the power supply output end connect host scm, and the enabled output end connects the enabled of the first power supply chip
End；
Host scm is equipped with power control line, and the other end of the power control line connects OR circuit, the OR circuit
Connect second source chip.
2. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the voltage input interface with
It is equipped with diode between first power supply chip, diode is equipped between the voltage input interface and second source chip.
3. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the voltage input interface is also
Power supply module is connected, is equipped with CAN transmission circuit in the power supply module.
4. a kind of distributed electrical source control circuit according to claim 3, which is characterized in that the CAN transmission circuit point
It Lian Jie not OR circuit and host scm.
5. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the distributed generation resource control
Circuit further includes RTC, and the RTC is separately connected OR circuit and host scm.
6. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the distributed generation resource control
Circuit further includes key wake-up circuit, and the key wake-up circuit is separately connected OR circuit and host scm.
7. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the distributed generation resource control
Circuit further includes vehicle-mounted charge wake-up circuit, and the vehicle-mounted charge wake-up circuit is separately connected OR circuit and host scm.
8. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the distributed generation resource control
Circuit further includes quick charge wake-up circuit, and the quick charge wake-up circuit is separately connected OR circuit and host scm.
9. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that on the second source chip
Equipped with CAN transmission circuit, the CAN transmission circuit connects host scm.
10. a kind of distributed electrical source control circuit according to claim 1, which is characterized in that the CVS is equipped with CAN
Transmission circuit, the CAN transmission circuit connect host scm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549531.XU CN208232836U (en) | 2018-04-17 | 2018-04-17 | A kind of distributed electrical source control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820549531.XU CN208232836U (en) | 2018-04-17 | 2018-04-17 | A kind of distributed electrical source control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208232836U true CN208232836U (en) | 2018-12-14 |
Family
ID=64584528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820549531.XU Active CN208232836U (en) | 2018-04-17 | 2018-04-17 | A kind of distributed electrical source control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208232836U (en) |
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2018
- 2018-04-17 CN CN201820549531.XU patent/CN208232836U/en active Active
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