CN203521548U - Collection board of power battery system - Google Patents
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- CN203521548U CN203521548U CN201320612971.2U CN201320612971U CN203521548U CN 203521548 U CN203521548 U CN 203521548U CN 201320612971 U CN201320612971 U CN 201320612971U CN 203521548 U CN203521548 U CN 203521548U
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Abstract
The embodiment of the utility model provides a collection board of a power battery system to overcome the problem that the collection board of the power battery system in the prior art cannot simultaneously achieve non-delay power-on and delayed power-off so that a low power consumption mode can not be entered. A micro-control unit, a switch control unit, a collection chip and a low-voltage power supply unit are arranged on the collection board; the collection chip is used for collecting a signal of a power battery pack; the low-voltage power supply unit is used for supplying electric energy to low-voltage electricity components comprising the micro-control unit; the electric power input end of the switch control unit is connected with a low-voltage power supply of an overall vehicle; two signal input ends are respectively connected with the enabling control ends of a key switch and the micro-control unit; the output end of the switch control unit is connected with the low-voltage power supply unit, so that the collection board can effectively achieve instantaneous power-on and delayed power-off, so as to perfectly enter the low power consumption mode. The scheme disclosed by the embodiment of the utility model is relatively simple in design, a specially redundant circuit or a specially complicated software control process is not required, the control process is simple, and the collection board is easy to implement and relatively low in cost, and can be achieved just by additionally arranging simple hardware in cooperation with software on the existing basis.
Description
Technical field
The utility model relates to electrokinetic cell system field, especially refers to its electrokinetic cell system collection plate.
Background technology
Battery management system (the English full name: Battery Management System that electrokinetic cell system comprises power battery pack and this power battery pack is managed, be called for short BMS), be used for realizing data acquisition, balanced management, volume calculation, communication function, parameter function is set etc., this battery management system generally comprises master control borad and polylith collection plate.Collection plate is used for gathering the signals such as voltage, temperature and balanced control, and master control borad, for carrying out communication with Full Vehicle System, is controlled charger etc.
Collection plate, as one of important subassembly of electrokinetic cell system, requires strictly to follow the power supply management (control) of electrokinetic cell system.So-called power supply management refer to circuit board power on, lower electric tube reason.
Collection plate, as the collecting unit of electrokinetic cell coherent signal, comprises two parts power supply source: power battery pack and car load 12V(volt, be called for short volt) low-tension supply; Power battery pack is for partly powering to the Acquisition Circuit of this collection plate, such as be that acquisition chip on collection plate is powered.Car load 12V low-tension supply is the power supply of micro-control cell mesh.
Existing generally comparatively simple for the powering on of electrokinetic cell system collection plate, lower electric tube reason, generally car load low-tension supply is directly connected to collection plate, this mode is managed without lower electric tube, cannot enter low-power consumption mode, and system power dissipation is larger.Also have by the transfer mode of collection plate of master control borad, this kind of mode directly controlled by master control borad, and upper and lower electric management role transfers to master control borad to be responsible for, and collection plate cannot carry out lower electric delay process, can not normally enter low-power consumption mode.
The existing mode that also has other power on, lower electricity, such as by sleeping/waking control signal or the English full name of CAN(: Controller Area Network, Chinese: controller local area network) bus signals realize power on, lower electric tube reason; But above-mentioned single method all exists and is not that instantaneous lower electricity causes entering low-power consumption mode, is exactly the problem of delayed.
Utility model content
For overcoming prior art medium power battery system collection plate, exist and can not have the problem that powers on and enter low-power consumption mode without time delay and lower electric time delay simultaneously concurrently, the utility model embodiment provides a kind of electrokinetic cell system collection plate on the one hand, and it can effectively accomplish instantaneously to power on, electricity enters low-power consumption mode under time delay.
The electrokinetic cell system collection plate that the utility model embodiment provides, which is provided with micro-control unit, switch control unit, for gather power battery pack signal acquisition chip, be used to the low pressure consuming parts that comprises described micro-control unit that the low-tension supply unit of electric energy is provided;
Described acquisition chip is connected with described micro-control unit, and described micro-control unit is provided with the control end that enables that connects the key signal input part of key switch and output enable signal;
The power input end of described switch control unit connects car load low-tension supply, two signal input parts connect respectively the control end that enables of described key switch and described micro-control unit, the output of described switch control unit connects described low-tension supply unit, and described switch control unit is for electricity under instantaneously powering on of realizing described electrokinetic cell system collection plate under controlling at the input signal of described key switch and described micro-control unit, time delay.
Because the collection plate providing in the utility model embodiment is provided with switch control unit, its power input end connects car load low-tension supply, two signal input parts wherein connect respectively key switch and micro-control unit, output termination low-tension supply unit, as long as key switch one powers on, switch control unit will be given the power supply of low-tension supply unit immediately, realize the instantaneous function powering on, simultaneously, when described key switch is closed, micro-control unit sends useful signal will in certain delay time described switch control unit, make switch control unit in delay time, be continuously the power supply of low-tension supply unit, for entering low-power consumption mode, prepare.Visible, to adopt the utility model embodiment to provide scheme, can effectively accomplish instantaneously to power on, electricity under time delay, and perfection enters low-power consumption mode.The utility model embodiment conceptual design is relatively simple, without the circuit that increases special redundancy, also without complicated especially software control process.Only need on existing basis, increase simple hardware, software in conjunction with realizing, easy to implement, control procedure is simple.And cost is relatively low.
Preferably, described switch control unit comprises or logical block and mains switch;
The input of described mains switch is connected with described car load low-tension supply, and its output is connected with described low-tension supply unit, and its control end is connected with the output of described or logical block;
The enabling input and enable control end described in described micro-control unit and be connected of described or logical block, key signal incoming end described or logical block is connected with described key switch.
So, combination described or logical block and mains switch can effectively realize instantaneously power on, electricity enters low-power consumption mode under time delay requirement.
Preferably, described micro-control unit is also provided with the CAN input that connects CAN bus, can be used for receiving low power mode command.Owing to being provided with this CAN input, micro-control unit can also receive low-power consumption mode order from described CAN bus, thereby can according to this order to or the Enable Pin of logical block send invalid signals, when key switch disconnects, should or the key signal incoming end of logical block while receiving invalid signals, to make or logical block output invalid signals, mains switch is disconnected.This collection plate has increased according to the order of CAN bus transfer and has carried out voluntarily lower electric tube reason, makes collection plate enter the function of low-power consumption mode.
Accompanying drawing explanation
Fig. 1 is the collection plate schematic diagram that the utility model embodiment 1 provides;
Fig. 2 is the preferred collection plate schematic diagram that the utility model embodiment 1 provides;
Fig. 3 is a kind of collection plate control flow chart that the utility model embodiment 3 provides;
Fig. 4 is a kind of preferred collection plate control flow chart that the utility model embodiment 4 provides;
Fig. 5 is a kind of further preferred collection plate control flow chart that the utility model embodiment 5 provides;
Fig. 6 is the collection plate control flow chart of a kind of optimum of providing of the utility model embodiment 6.
Wherein, 1, car load low-tension supply; 2, low-tension supply unit; 3, acquisition chip; 4, micro-control unit; 5, power battery pack; 6, mains switch; 7 or logical block; 8, CAN bus; 9, key switch; 41, enable control end; 42, key signal input part; 61, control end; 7a or logic output terminal; 7b, key signal incoming end; 7c, enable input; 10, switch control unit; 100, collection plate.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
This example will be specifically described electrokinetic cell system collection plate.
As shown in Figure 1, described collection plate is provided with the English full name of micro-control unit 4(: Micro Control Unit, English abbreviation: MCU), switch control unit 10, for gather power battery pack 5 signals acquisition chip 3, be used to the low pressure consuming parts that comprises described micro-control unit 4 that the low-tension supply unit 2 of electric energy is provided;
Described acquisition chip 2 is connected with described micro-control unit 4, described micro-control unit 4 be provided with connect the key signal input part 42 of key switch 9 and output enable signal enable control end 41;
The power input end of described switch control unit 10 connects car load low-tension supply 1, what two signal input parts connected respectively described key switch 9 and described micro-control unit 4 enables control end 41, the output of described switch control unit 10 connects described low-tension supply unit 2, and described switch control unit 10 is realized described electrokinetic cell system collection plate 100 under controlling for input signal in described key switch 9 and described micro-control unit 4 instantaneously powers on, electricity under time delay.
The power input end of this switch control unit 10 and output connect respectively car load low-tension supply 1 and low-tension supply unit 2, therefore can be at car load low-tension supply 1 and 2 of the low-tension supply unit circuit of setting up its electric power transfer, and the break-make of this switch control unit 10 is subject to the control of two signal input parts, as long as wherein any one is useful signal, all will make switch control unit 10 connect, realize being electrically connected to of car load low-tension supply 1 and low-tension supply unit 2 on collection plate 100, collection plate 100 powers on, for the low pressure consuming parts of collection plate 100 provides low tension.When two input signals are invalid signals, switch control unit 10 disconnection car load low-tension supplies 1 are electrically connected to low-tension supply unit 2 on collection plate 100, and collection plate 100, by lower electricity, makes collection plate 100 enter low-power consumption mode.
Certainly, in fact described collection plate 100 is also provided with other and well known to a person skilled in the art parts, such as electric interfaces, and isolating chip, equalizing circuit etc.Electric interfaces is the low-voltage signal interface on collection plate 100 and master control borad and car load, and isolating chip is the communication signal isolation with acquisition chip 3 for micro-control unit 4, and equalizing circuit is used for the charge and discharge balancing control of power battery pack 5 and realizes.Because of these parts and the utility model correlation degree lower, and be known technology, therefore explanation no longer one by one.
Because the collection plate 100 providing in the utility model embodiment is provided with switch control unit 10, its power input end connects car load low-tension supply 1, two signal input parts wherein connect respectively key switch 9 and micro-control unit 4, output termination low-tension supply unit 2, as long as key switch 9 one powers on, switch control unit 10 will give low-tension supply unit 2 power supplies immediately, realize the instantaneous function powering on, simultaneously, when described key switch 9 is closed, micro-control unit 4 sends useful signal will in certain delay time described switch control unit 10, make switch control unit 10 in delay time, be continuously 2 power supplies of low-tension supply unit, realize the function of electricity under time delay, for entering low-power consumption mode, prepare.Visible, to adopt the utility model embodiment to provide scheme, can effectively accomplish instantaneously to power on, electricity under time delay, and perfection enters low-power consumption mode.The utility model embodiment conceptual design is relatively simple, without the circuit that increases special redundancy, also without complicated especially software control process.Only need on existing basis, increase simple hardware, software in conjunction with realizing, easy to implement, control procedure is simple.And cost is relatively low.
As shown in Figure 2, preferably, the utility model embodiment is further optimized the collection plate 100 of electrokinetic cell system, and as more concrete execution mode, described switch control unit 10 comprises or logical block 7 and mains switch 6;
The input of described mains switch 6 is connected with described car load low-tension supply 1, and its output is connected with described low-tension supply unit 2, and its control end 61 is connected with output described or logical block 7; As shown in Figure 2, for the purpose of distinguishing other outputs, the output of this or logical block 7 is called or logic output terminal 7a, described or logic output terminal 7a is connected to the control end 61 of described mains switch 6.
The enabling input 7c and enable control end 41 described in described micro-control unit 4 and be connected of described or logical block 7, key signal incoming end 7c described or logical block 7 is connected with described key switch 9.
Below the annexation between each parts and each parts is specifically described.
Described acquisition chip 3 is for gathering power battery pack 5 signals; And send to micro-control unit 4 to process collection result, the power pack of this acquisition chip 3 is connected to the positive and negative electrode end of electrokinetic cell module, its power pack keeps and being electrically connected to of electrokinetic cell module always, provide electric energy, 2 power supplies of the low-tension supply unit in collection plate of low-voltage circuit part always.Low-voltage circuit part can lose power supply, so, makes after lower electricity, and micro-control unit 4 and acquisition chip 3(control by micro-control unit 4) can enter in low-power consumption mode.So-called power battery pack signal comprises voltage signal and temperature signal etc.
Described micro-control unit 4 be provided with connect the key signal input part 42 of key switch 9 and output enable signal enable control end 41; This key signal input part 42 is connected to key switch 9, and or the key signal incoming end 7b of logical block 7 be also connected to key switch 9, from Fig. 2, also can find out, the key signal input part 42 of micro-control unit 4 is directly electrically connected to the key signal incoming end 7b of this or logical block 7.Key switch 9 comprises two states, be open and close state (or deserving to be called electricity, lower electricity), when key switch 9 is when opening state, the key signal input part 42 on micro-control unit 4 and or logical block 7 on key signal incoming end 7b will receive useful signal, high level 1.When key switch 9 is during in closed condition, the key signal input part 42 on micro-control unit 4 and or logical block 7 on key signal incoming end 7b will receive invalid signals, low level 0.This example and subsequent embodiment all be take high level as useful signal, take low level as invalid signals.But also can take low level as useful signal, high level is invalid signals; As long as its result makes or the input of logical block receives arbitrary useful signal and exports useful signal, mains switch is connected, collection plate powers on.If input is all inputted, invalid signals will make or logical block output invalid signals, make mains switch disconnect, electricity under collection plate.
Micro-control unit 4 is as processor, refer to appearance and development thereof along with large scale integrated circuit, by the English full name of the CPU(of computer: Central Processing Unit, Chinese full name: central processing unit), the English full name of RAM(: random access memory, Chinese: random asccess memory), the English full name of ROM(: Read-Only Memory, Chinese full name: read-only memory), English full name: the Input/Output of timer conter and multiple I/O(, Chinese: I/O) Interface integration is on a slice chip, form the computer of chip-scale, for different application scenarios, doing various combination controls.It is conventionally known to one of skill in the art, repeats no more.
Described low-tension supply unit 2 is connected with car load low-tension supply 1 through mains switch 6, is used to the low pressure consuming parts such as micro-control unit 4 that electric energy is provided.Car load low-tension supply 1 is generally the voltage source of 12 volts.
The control end 61 of described mains switch 6 is connected with described or logical block 7 or logic output terminal 7a; Be control end 61 receptions of described mains switch 6 or the output signal of logical block 7, when output signal that receive or logical block 7 when it or logic output terminal 7a is useful signal (high level 1 is useful signal), control described mains switch 6 conductings, the low-tension supply unit 2 that described car load low-tension supply 1 is on collection plate 100 provides electric energy.When output signal that receive or logical block 7 when it or logic output terminal 7a is invalid signals (low level 0 is invalid signals), control described mains switch 6 and turn-off, described car load low-tension supply 1 stops providing electric energy for the low-tension supply unit 2 on collection plate 100.
Described or logical block 7 is provided with two inputs, is respectively key signal incoming end 7b and enables input 7c; Described key signal incoming end 7b is connected with key switch 9, for receiving the switching signal of key switch 9; The described input 7c that enables is connected with the control end 41 that enables of described micro-control unit 4, for receiving the enable signal of described micro-control unit 4.This enable signal is also two states, when enabling control end 41 output high level, is useful signal; When enabling control end 41 output low level, it is invalid signals.Or logical block ratio is easier to realize, conventionally adopt common cathode diode circuit to realize.
Should or the function of logical block 7 for when its arbitrary input input useful signal, while being high level signal, itself or logic output terminal 7a export useful signal (high level 1).Only have when all inputs all input invalid signals, while being low level signal, itself or logic output terminal 7a just export invalid signals (low level 0).
The requirement that in this example, combination described or logical block 7 and mains switch 6 can effectively realize and instantaneously powering on, electricity enters low-power consumption mode under time delay.Owing to being provided with or logical block 7, and two input is connected respectively to key switch 9 and micro-control unit 4, or logic output terminal 7a connects the control end 61 of mains switch 6, as long as key switch 9 one powers on, should or the key signal incoming end 7b of logical block 7 receive immediately useful signal, should or 7 of logical blocks export immediately useful signal to the control end 61 of mains switch 6, the conducting immediately of described mains switch 6, realizes the instantaneous function powering on.Simultaneously, when described key switch 9 is closed, micro-control unit 4 will be given or the input 7c that enables of logical block 7 sends useful signal in certain delay time, make or logical block 7 in delay time, continued output useful signal, guarantee that described mains switch 6 keeps conducting state in delay time, for entering low-power consumption mode, prepare.
As preferred mode, described micro-control unit 4 is also provided with the CAN input that connects CAN bus 8, for gathering low power mode signals.When master control borad sends low power mode signals to the micro-control unit 4 on collection plate 100, this micro-control unit 4 receives after this low power mode signals, and described micro-control unit 4 is made as 0 by the control end 41 that enables of micro-control unit 4, exports invalid signals.Owing to being provided with this CAN input, micro-control unit 4 can also receive low-power consumption mode order from described CAN bus 8, thus can according to this order to or the input 7c that enables of logical block 7 send invalid signals.When key switch 9 disconnects, should or the key signal incoming end 7b of logical block 7 while receiving invalid signals, meanwhile, or logical block 7 enable input 7c while receiving invalid signals, will make or logical block 7 output invalid signals, make mains switch 6 disconnections.This collection plate 100 has increased according to the order of CAN bus 8 transmission and has carried out voluntarily lower electric tube reason, makes collection plate 100 enter the function of low-power consumption mode.
Embodiment 2
This example is the control method to collection plate 100, specifically refers to the powering on of collection plate 100, lower electric control method to be specifically described, so that those skilled in the art understand thought of the present utility model.
When described switch control unit 100 and described micro-control unit 4 detect described key signal and be invalid signals, described micro-control unit 4 keeps sending useful signals to described switch control unit 10 in delay time; Described switch control unit 10 keeps electric power output, so that described collection plate 100 keeps energising in described delay time; Concrete, because only having when two signal input parts of switch control unit 10 are all inputted invalid signals, switch control unit 10 just can disconnect being electrically connected to of car load low-tension supply 1 and low-tension supply unit 2 on collection plate 100, therefore, in this delay time, because micro-control unit 4 still sends useful signal to switch control unit 10, therefore, this collection plate 100 still keeps "on" position in this delay time.
After described delay time, described micro-control unit 4 is controlled described acquisition chip 3 and is entered low-power consumption mode, and the useful signal sending to described switch control unit 10 is become to invalid signals, disconnects described switch control unit 10,100 times electricity of described collection plate.After delay time finishes, because the signal of two signal input parts of switch control unit 10 all becomes invalid signals, therefore, switch control unit 10 disconnection car load low-tension supplies 1 are electrically connected to low-tension supply unit 2 on collection plate 100, and collection plate 100 is by lower electricity.
The above-mentioned control method that adopts this example to provide, as long as key switch 9 one powers on, switch control unit 10 will give low-tension supply unit 2 power supplies immediately, realize the instantaneous function powering on, simultaneously, when described key switch 9 is closed, micro-control unit 4 sends useful signal will in certain delay time described switch control unit 10, makes switch control unit 10 in delay time, be continuously 2 power supplies of low-tension supply unit; Realize the function of electricity under time delay, for entering low-power consumption mode, prepare.Visible, to adopt the utility model embodiment to provide scheme, can effectively accomplish instantaneously to power on, electricity under time delay, and perfection enters low-power consumption mode.And this control method is relatively simple and reliable, easily implement clear logic.
Embodiment 3
This example provides a kind of further preferred collection plate 100 control methods, the collection plate based on shown in preferred Fig. 2, and flow chart as shown in Figure 3, comprises the steps:
S1, the collection plate step that powers on: when described key signal being detected and be useful signal, described or logical block 7 is exported useful signals, described mains switch 6 demand working electric power outputs, the 2 output power supplies to described low-tension supply unit, so that described collection plate 100 starts to power on.
When the key switch 9 on car load powers on, set high level, or the key signal incoming end 7b of logical block 7 will to receive immediately key signal be useful signal, according to or the control logic of logical block 7, owing to there being the useful signal of input high level of input, therefore itself or logical block 7 or logic output terminal 7a immediately to the useful signal of the control end 61 output high level of mains switch 6, make this mains switch 6 conductings, car load low-tension supply 1 provides low tension for the low-tension supply unit 2 on collection plate 100.This step due to or the key signal incoming end 7b of logical block 7 be directly electrically connected to key switch 9, therefore, the moment powering at key switch 9, just make mains switch 6 connect, realize instantaneous powering on.
S2, lower electric pre-treatment step: when or logical block 7 and described micro-control unit 4 when described key signal being detected and becoming invalid signals, described micro-control unit 4 in certain time-delay, in the time, keep to or the input 7c that enables of logical block 7 send useful signal; Meanwhile, described or logical block 7 is still exported useful signal in this delay time; Described mains switch 6 keeps connecting, so that described collection plate 100 keeps energising in this delay time.
When the instantaneous lower electricity of the key switch 9 of car load, set low level, or the key signal incoming end 7b of logical block 7 will receive immediately key signal and become invalid signals, the key signal input part 42 of micro-control unit 4 also will receive this invalid signals simultaneously, but it can't be immediately sends low level invalid signals to enabling control end 41, but in certain delay time, keep to or logical block 7 enable the useful signal that input 7c sends high level.Due to or two inputs of logical block 7 in, key signal incoming end 7b is low level invalid signals, and enable the useful signal that input 7c is high level, therefore in this delay time, or logical block 7 will be exported the useful signal of high level, control mains switch 6 maintenance conducting states.
Electric step under S3, collection plate: after described delay time, necessary information is preserved in described micro-control unit 4, as monomer voltage signal, the temperature signal of electrokinetic cell, the status signal of collection plate 100 etc., to described acquisition chip 3, send low-power consumption mode control command simultaneously, control described acquisition chip 3 and enter low-power consumption mode, then the enable signal of the transmission to described or logical block 7 is become to invalid signals from useful signal, described or logical block 7 is exported invalid signals, disconnect described mains switch 6,100 times electricity of collection plate.
Because there has been above-mentioned delay time, therefore it has sufficient time to preserve related data, and control acquisition chip 3 and enter after low-power consumption mode, just allow mains switch 6 to disconnect, acquisition chip 3 enters low-power consumption mode, enter resting state, will no longer carry out periodic voltage, temperature acquisition, the electric quantity consumption of 3 pairs of power battery pack 5 of acquisition chip is down to minimum.
This control method can be regarded two parts as and form: the control procedure that powers on and lower electric control process.
Above-mentioned steps S1 is the control procedure that powers on, and step S2, step S3 are lower electric control process.The control procedure that powers on providing in this example realizes instantaneous powering on, and lower electric control process realizes electricity under time delay, and has time enough to preserve necessary information, then completes lower electricity, enters low-power consumption mode.
Above-mentioned delay time is special setting not, as long as it can realize suitable lower electric delay time, ensures sufficient time save data.In general, advise that it is 5-30 second that this delay time is set.Certainly, further preferably, through verification experimental verification, the delay time of 5 seconds is better, has time enough to guarantee storage data, and acquisition chip 3 is carried out to the control of low-power consumption mode, is unlikely to again to waste the too many time in lower electric process.The delay time of take in this example 5 seconds is example, in lower electricity, once key signal be detected, is invalid signals, enter the pretreated step of lower electricity, enter the delay time of 5 seconds, in 5 seconds, micro-control unit 4 keep to or the enable signal that sends of logical block 7 be useful signal; Make can be the immediately lower electricity of collection plate 100, but have after the delay time of 5 seconds more lower electricity voluntarily, 5 second time enough preserved related data and controlled acquisition chip 3 and carry out low-power consumption mode.
The control method that adopts this example to provide, key switch 9 one powers on, and collection plate 100 can power on immediately, realizes the instantaneous function powering on.When lower electricity, although the key signal of key switch 9 becomes invalid signals, but in certain delay time, can't be lower electric immediately, micro-control unit 4 keep to or the enable signal that sends of logical block 7 be useful signal, or logical block 7 still exports useful signal in this delay time, make described collection plate 100 in this delay time, keep energising; Realize the function of electricity under time delay, thereby make collection plate 100 have time enough to preserve relevant information and control acquisition chip 3, enter low-power consumption mode, after delay time, electricity under, enters low-power consumption mode.In sum, the control method that this example provides, can effectively accomplish instantaneously to power on, electricity under time delay, and perfection enters low-power consumption mode.Equally, its control method also relatively simply, is easily implemented, clear logic.
Flow chart as shown in Figure 4, as a kind of preferred implementation, on the basis of embodiment 3, after described step S1, this example has increased by a preferred steps, S1A, maintenance step powers on.
Described step S1A belongs to the control procedure that powers on, be specially: after described collection plate 100 starts to power on, described collection plate 100 carries out initialization, after described collection plate 100 initialization complete, and when described micro-control unit 4 collects described key signal and is useful signal, described micro-control unit 4 sends useful signal to the input 7c that enables of described or logical block 7; Described or logical block 7 is exported useful signals, makes described collection plate 100 keep energising.
This step is after initialization, continue to follow the tracks of key signal, as long as key signal is useful signal, micro-control unit 4 also can to or logical block 7 send the enable signal of high level, therefore or two inputs of logical block 7 are all useful signal, therefore, itself or logic output terminal 7a are also useful signal, even if there is of short duration abnormal shake in key signal, enable signal still can by make or logical block 7 or logic output terminal 7a output useful signal.And in lower electric process, owing to being provided with delay time, even if therefore key signal being detected is invalid signals from useful signal saltus step, also can not make or logical block 7 or logic output terminal 7a moment export invalid signals, but saltus step again after segment delay time, finally reach electricity under time delay, the object that safety enters low-power mode.This step will make collection plate 100 after initialization, to or the effective enable signal of logical block 7 output, continue to maintain "on" position, and when follow-up key switch 9 times is electric, can in the time, maintain this useful signal in certain time-delay, realize the function of electricity under time delay.
Flow chart as shown in Figure 5, as a kind of preferred implementation, this example, on the basis of embodiment 3, embodiment 4, in lower electric control process, after step S2, has added a S2A, Rapid Circulation step, as more a kind of selectable steps.
Take and comprise that in steps S1, S1A, S2, S3 are example, after S2, increased by a step S2A and be specifically described.
Described S2A, Rapid Circulation step are specially: if in described delay time, described key signal detected and change useful signal into, micro-control unit 4 keep to or the input 7c that enables of logical block 7 send useful signal, described or logical block 7 is still exported useful signal, and collection plate 100 is normally worked.
Such as, if in the delay time of 5 seconds, the key signal that key switch 9 detected in the 3rd second has become useful signal from invalid signals, moment of the 3rd second, micro-control unit 4 is after this useful signal being detected, to interrupt this lower electric preprocessing process, micro-control unit 4 still keep to or logical block 7 send useful signals, descend electric control process Rapid Circulation to collection plate 100 control procedure that powers on; Finish the action of this lower electricity.
Under this kind of operating mode, if key switch 9 re-powers in delay time, will can after delay time, not enter low-power consumption mode, but again proceed to fast power up, keep "on" position.Can make like this driver pass through key upper and lower when operation electricity repeatedly, collection plate can respond rapidly its operation and enter normal operating conditions, and does not produce the time delay of upper and lower electricity, avoids bringing the hysteresis sensation of car load operation.
On the basis of previous embodiment 3-5, after step S2, further increased by a preferred steps.After lower electric pre-treatment step, increased electric step under a S2B, software.
Flow chart shown in Figure 6, on the basis of Fig. 5, has further increased electric step under a S2B, software.
Under described software, electric step is specially: described micro-control unit 4 receives the low-power consumption mode order that enters low-power consumption mode from CAN bus 8, described micro-control unit 4(preserves necessary information around here) and control acquisition chip 3 and enter low-power consumption mode, then the input 7c that enables to described or logical block 7 is sent to invalid signals, described or logical block 7 is exported invalid signals, disconnects described mains switch 6.
Master control borad can send low-power consumption mode order to CAN bus 8 by software, in the delay time of 5 seconds, suppose at the 2nd second, the CAN input of micro-control unit 4 is when CAN bus 8 receives this low power mode command, should or logical block 7 can enter after low-power consumption mode preserving necessary information and control acquisition chip 3, directly enter lower electric process, make collection plate 100 enter low-power consumption mode.And after needn't waiting until 5 seconds and finishing, just enter lower electric process.
This example has increased the mode of carrying out lower electric tube reason according to the order of CAN bus 8 transmission, makes collection plate 100 enter the function of low-power consumption mode.Increased and supported electricity order from the issue of master control borad software, the function that enters low-power consumption mode.
In sum, the utility model has been optimized the circuit of electrokinetic cell system collection plate 100, and control method.Realized completely instantaneously power on, electricity enters low-power consumption mode under time delay requirement.Perfect the powering on of collection plate 100, the lower electric tube reason problem of solving.Power on management without time delay, controlled by key switch 9, collection plate 100 is synchronizeed and is powered on master control borad, shortens the power-up initializing time.Can guarantee the normal lower electricity of collection plate 100, enter low-power consumption mode, reduce system power dissipation.And be provided with multiple preferred version support various working, and scheme is simple and reliable, and hardware and software combine, and Full Vehicle System and master control borad are had no special requirements, and collection plate 100 costs are without obvious increase.For using a plurality of collection plates 100 to produce effect equally in electrokinetic cell system, support its concurrent working.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. an electrokinetic cell system collection plate, it is characterized in that, described collection plate be provided with micro-control unit, switch control unit, for gather power battery pack signal acquisition chip, be used to the low pressure consuming parts that comprises described micro-control unit that the low-tension supply unit of electric energy is provided;
Described acquisition chip is connected with described micro-control unit, and described micro-control unit is provided with the control end that enables that connects the key signal input part of key switch and output enable signal;
The power input end of described switch control unit connects car load low-tension supply, two signal input parts connect respectively the control end that enables of described key switch and described micro-control unit, the output of described switch control unit connects described low-tension supply unit, and described switch control unit is for electricity under instantaneously powering on of realizing described electrokinetic cell system collection plate under controlling at the input signal of described key switch and described micro-control unit, time delay.
2. electrokinetic cell system collection plate as claimed in claim 1, is characterized in that, described switch control unit comprises or logical block and mains switch;
The input of described mains switch is connected with described car load low-tension supply, and its output is connected with described low-tension supply unit, and its control end is connected with the output of described or logical block;
The enabling input and enable control end described in described micro-control unit and be connected of described or logical block, key signal incoming end described or logical block is connected with described key switch.
3. electrokinetic cell system collection plate as claimed in claim 1 or 2, is characterized in that, described micro-control unit is also provided with the CAN input that connects CAN bus, for receiving low power mode command.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612971.2U CN203521548U (en) | 2013-09-29 | 2013-09-29 | Collection board of power battery system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320612971.2U CN203521548U (en) | 2013-09-29 | 2013-09-29 | Collection board of power battery system |
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| CN203521548U true CN203521548U (en) | 2014-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518246A (en) * | 2013-09-29 | 2015-04-15 | 广州汽车集团股份有限公司 | Power battery system acquisition plate and control method thereof |
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- 2013-09-29 CN CN201320612971.2U patent/CN203521548U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104518246A (en) * | 2013-09-29 | 2015-04-15 | 广州汽车集团股份有限公司 | Power battery system acquisition plate and control method thereof |
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Effective date of registration: 20211230 Address after: 511434 No. 36, Longying Road, Shilou Town, Panyu District, Guangzhou City, Guangdong Province Patentee after: GAC AION New Energy Vehicle Co.,Ltd. Address before: 510030 23 building, Cheng Yue mansion 448-458, Dongfeng Middle Road, Yuexiu District, Guangzhou, Guangdong. Patentee before: GUANGZHOU AUTOMOBILE GROUP Co.,Ltd. |
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