Embodiment one
Fig. 1 is the structural representation of the power source system of a kind of pure electric automobile according to this utility model embodiment, as
Shown in Fig. 1, this system includes:
At least two set of cells.
At least two controls switches set, electrically connects with at least two set of cells respectively, is used for controlling at least two set of cells
Output electric energy, wherein, in parallel between at least two set of cells.
Herein need explanation time, in above-mentioned at least two set of cells, the electricity of any set of cells can be with existing skill
In art, the electricity of the set of cells of pure electric automobile is suitable, i.e. the electricity of any one set of cells at least two set of cells
Pure electric automobile can be made normally to travel.
Above-mentioned at least two is controlled switches set and is controlled the duty of set of cells by unlatching and Guan Bi, when controlling switch
Control switch in group is when all closing, and set of cells corresponding to this control switches set can access power source system, for
The driving motor of pure electric automobile is powered.
In a kind of optional embodiment, above-mentioned control switch is relay.
Controller, with at least two control switches set electrically connect, for according at least two control switches set in any
The set of cells that one or more groups on-off control is corresponding.
In said system, controller controls switch open or Guan Bi by output control signal.
Fig. 2 is the power source system circuit signal of a kind of optional pure electric automobile according to this utility model embodiment one
Figure, shown in Fig. 2, in a kind of optional embodiment, includes two with the power source system of above-mentioned pure electric automobile
As a example by individual set of cells, two set of cells access power source system in parallel, and each set of cells positive pole and
Negative pole is respectively connected to a gate-controlled switch, gate-controlled switch and battery management controller BMS (Battery Management
System, battery management system) it is connected, i.e. controller can control the duty of switch.Controlling switch can be
Relay, is made up of coil and inductive switch, and the two ends of coil are connected with battery management controller, work as battery management
Controller coil when coil output predetermined current produces induction electromotive force, so that inductive switch Guan Bi, at battery
In the case of the positive switch of group and negative switch all close, set of cells access power source system starts as driving motor to power;
When any one set of cells in two set of cells breaks down, the set of cells that controller controls to break down is corresponding
Control switches set to disconnect, i.e. the battery controlling to break down is stopped power supply, and another set of cells not broken down depends on
So can provide electric energy for power source system, and owing to two set of cells are for being connected in parallel, then appointing in power source system
A set of cells job of anticipating can provide enough voltage and electric energy for pure electric automobile.
In the case of any one set of cells in set of cells breaks down, battery management controller passes through open failure
Switches set corresponding to set of cells reaches the purpose of open failure set of cells, in a kind of optional embodiment, combines and schemes
Shown in 2, what first battery management controller disconnected is the switch being connected with battery anode, i.e. switch 1 and switch 3,
Then the switch being connected with battery electrode in disconnection, i.e. switch 2 and switch 4, to ensure car load safety.
Also need to explanation is herein, and any one set of cells of above-mentioned at least two set of cells is demountable structure, works as electricity
When pond group needs charging, set of cells to be replaced can be separated power source system, and select same set of cells to carry out
Replace, to reduce the charging interval long impact that pure electric automobile is used process.
In an alternative embodiment, still combine shown in Fig. 2, when set of cells to start power supply for driving motor
Time, first controller controls to be connected to the control switch Guan Bi of the negative pole of set of cells, will be connected to the positive pole of set of cells
Control switch Guan Bi, when any set of cells break down need disconnect time, controller control be connected to battery anode
Control switch off, control to be connected to the control of battery electrode the most again and switch off, any battery can be realized
Group breaks down and pure electric automobile still is able to normally travel until the position such as maintenance center or destination.
From the foregoing, it will be observed that the application said system includes at least two set of cells, electrically connect with at least two set of cells respectively
At least two control switches set, be used for controlling at least two set of cells output electric energy, wherein, at least two set of cells
Between in parallel, control, with at least two, the controller that switches set electrically connect, for according at least two control switches set
Set of cells corresponding to one or more groups on-off control any.Such scheme is by the power source system at pure electric automobile
In at least two set of cells is set, it is achieved that the redundant power origin system of pure electric automobile, reached to work as pure electric automobile
Set of cells when breaking down, pure electric automobile still can cross the technology using the set of cells not broken down to travel
Effect, solves in prior art, and the battery of pure electric automobile is made up of multiple battery cells, causes Individual cells list
When body breaks down, controller forbids that all batteries monomer works, so that the technology that electric automobile cannot normally travel
Problem.
Optionally, according to said system of the present utility model, controller is battery management controller, wherein, cell tube
Reason controller is additionally operable to obtain the battery parameter of at least two set of cells.
Concrete, above-mentioned battery management controller can be BMS.
Optionally, according to said system of the present utility model, said system also includes:
Electric machine controller, controls switches set by least two and electrically connects with at least two set of cells, for by least two
The DC conversion that individual set of cells provides is alternating current.
Herein it should be noted that set of cells is unidirectional current for the electric energy that power source provides, but the driving of pure electric automobile
Galvanic electricity machine uses alternating current, it is therefore desirable to the unidirectional current that set of cells provides is converted to drive motor by electric machine controller
The alternating current used.
Herein also, it should be noted in actual applications, electric machine controller is additionally operable to gather the operation ginseng driving motor
Number, such as, drive the rotating speed etc. of motor, with the entire car controller of transmission to pure electric automobile, so that entire car controller pair
The car load transport condition of pure electric automobile judges.
From the foregoing, it will be observed that above-described embodiment that this utility model provides includes electric machine controller, control to open by least two
Pass group electrically connects with at least two set of cells, is alternating current for DC conversion at least two set of cells provided,
Achieve the technique effect that the unidirectional current of set of cells is converted to drives the alternating current of motor use, thus reached to pass through
At least two set of cells is the technical purpose driving motor to power.
Optionally, according to said system of the present utility model, said system also includes:
Drive motor, electrically connect with electric machine controller, for using the alternating current operating obtaining electric machine controller output.
From the foregoing, it will be observed that this utility model provides the driving motor electrically connected with electric machine controller, it is used for using acquisition motor
The alternating current operating of controller output, it is achieved that be the technique effect driving motor to power by least two set of cells,
And then reached pure electric automobile by driving the technical purpose driving traveling of motor.
Optionally, according to said system of the present utility model, said system also includes:
Fault cues device, electrically connects with battery management controller, for monitoring any one when battery management controller
When individual or multiple set of cells break down, send fault cues signal.
Shown in Fig. 2, in a kind of optional embodiment, above-mentioned failure alarm signal can be the signal of telecommunication, sound letter
Number and/or picture signal, when battery management controller detects that at least two set of cells breaks down, pure electric automobile
Send fault cues signal in time, so that user of service knows the state that above-mentioned pure electric automobile is current.Such as, when appointing
A set of cells of anticipating breaks down, another set of cells be powered, and fault cues device sends default prompt tone.
From the foregoing, it will be observed that the fault cues device that this utility model above-described embodiment provides electrically connects with battery management controller,
For when battery management controller monitor any one or more set of cells break down time, send fault cues signal,
Reach the technique effect making the user of pure electric vehicle know vehicle travel situations in time.
Optionally, according to said system of the present utility model, said system also includes:
Instrument, by CAN and battery management controller communication, for showing the battery ginseng of at least two set of cells
Number.
In said system, instrument and battery management controller carry out communication, owing to battery management controller is except controlling control
Beyond the disconnection of system switch and Guan Bi, being additionally operable to gather the battery parameter of any one set of cells, therefore instrument can be led to
Cross battery management controller and get the battery parameter of set of cells.
In a kind of optional embodiment, when the set of cells in power source system the most normally works, instrument obtains every
The dump energy of individual set of cells, and the milimeter number that can travel that dump energy is corresponding, to remind human pilot in advance
Arrange to travel distance, if need the matters such as charging.
In an alternative embodiment, when in power source system, any one set of cells breaks down, instrument shows
Show while display power source system includes the signal of fail battery group, the residue electricity of the set of cells of the normal work of display
Amount and exercisable milimeter number corresponding to dump energy.
From the foregoing, it will be observed that the instrument that this utility model above-described embodiment provides is led to battery management controller by CAN
News, for showing the battery parameter of at least two set of cells.Such scheme is by the power source system at pure electric automobile
Middle addition shows instrument, so that the human pilot of pure electric automobile can be any one from the power source system that instrument shows
The state of individual battery, reaches the prompting purpose to human pilot.
Optionally, according to said system of the present utility model, said system also includes:
Entire car controller, by CAN and battery management controller communication, obtains the battery of at least two set of cells
Parameter.
In said system, the battery parameter of the set of cells that entire car controller acquires for basis is to pure electric automobile
It is that transport condition judges.
In the power source system of the pure electric automobile of this utility model above-described embodiment offer, battery parameter includes: surplus
The fault letter of any one or more set of cells in remaining electricity, cell voltage, battery current and/or at least two set of cells
Breath.
In the power source system of the pure electric automobile of this utility model above-described embodiment offer, at least two set of cells
Any one set of cells be made up of many battery cells.
In the power source system of the pure electric automobile of the above embodiments of the present application offer, the electricity of at least two set of cells
Identical.
From the foregoing, it will be observed that the electricity of at least two set of cells of this utility model above-described embodiment offer is identical, it is achieved that every
Individual set of cells can be exchanged, and uses the technical purpose of same battery replacement fail battery.
Embodiment two
According to this utility model embodiment, it is provided that a kind of pure electric automobile, above-mentioned pure electric automobile includes above-mentioned enforcement
The power source system of any one pure electric automobile that example is a kind of.
In a kind of optional embodiment, the power source system of above-mentioned pure electric automobile includes the battery that two electricity are identical
Group, the control switches set controlling set of cells and the battery management controller of control switches set.
Fig. 2 in the power source system of the pure electric automobile provided in corresponding embodiment one, as in figure 2 it is shown, in one
In optional embodiment, include as a example by two set of cells by the power source system of above-mentioned pure electric automobile, two set of cells
Access power source system in parallel, and be respectively connected to a gate-controlled switch at the most very much negative pole of each set of cells,
Gate-controlled switch is connected with controller, i.e. controller can control the duty of switch.When appointing in two set of cells
Meaning set of cells is when breaking down, and the control switches set that controller controls the set of cells that breaks down corresponding disconnects, i.e. control
The battery that system breaks down is stopped power supply, and another set of cells not broken down still can provide for power source system
Electric energy, and owing to two set of cells are for being connected in parallel, then the work of any one set of cells in power source system can
Enough voltage and electric energy is provided for pure electric automobile.
It should be noted that, any one set of cells of above-mentioned at least two set of cells is demountable structure, works as battery herein
When group needs charging, set of cells to be replaced can be separated power source system, and select same set of cells to replace
Change, to reduce the charging interval long impact that pure electric automobile is used process.
In an alternative embodiment, still combine shown in Fig. 2, when set of cells to start power supply for driving motor
Time, first controller controls to be connected to the control switch Guan Bi of the negative pole of set of cells, will be connected to the positive pole of set of cells
Control switch Guan Bi, when any set of cells break down need disconnect time, controller control be connected to battery anode
Control switch off, control to be connected to the control of battery electrode the most again and switch off, any battery can be realized
Group breaks down and pure electric automobile still is able to normally travel until the position such as maintenance center or destination.
From the foregoing, it will be observed that the power source system of the pure electric automobile of the above embodiments of the present application offer includes at least two battery
Group, at least two electrically connected with at least two set of cells respectively controls switches set, is used for controlling at least two set of cells
Output electric energy, wherein, in parallel between at least two set of cells, control, with at least two, the controller that switches set electrically connects,
For the set of cells corresponding according to one or more groups on-off control any at least two control switches set.Such scheme
By arranging at least two set of cells in the power source system of pure electric automobile, it is achieved that the redundancy of pure electric automobile is moved
Power origin system, has reached when the set of cells of pure electric automobile breaks down, and pure electric automobile still can be crossed use and not send out
The technique effect that the set of cells of raw fault travels, solves in prior art, and the battery of pure electric automobile is by multiple
Battery cell forms, and when causing Individual cells monomer to break down, controller forbids that all batteries monomer works, so that
Obtain the technical problem that electric automobile cannot normally travel.
Above-mentioned this utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment
There is no the part described in detail, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be passed through other
Mode realize.Wherein, device embodiment described above is only schematically, the division of the most described unit,
Can be that a kind of logic function divides, actual can have other dividing mode, the most multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, institute
The coupling each other shown or discuss or direct-coupling or communication connection can be by some interfaces, unit or mould
The INDIRECT COUPLING of block or communication connection, can be being electrical or other form.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these
Improvements and modifications also should be regarded as protection domain of the present utility model.