CN109747474A

CN109747474A - A kind of charging communication means Charge Management equipment and charging equipment

Info

Publication number: CN109747474A
Application number: CN201910116524.XA
Authority: CN
Inventors: 郝天磊
Original assignee: NIO Co Ltd
Current assignee: NIO Co Ltd
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2019-05-14
Anticipated expiration: 2039-02-15
Also published as: CN109747474B

Abstract

The present invention relates to a kind of charging communication means, Charge Management equipment and charging equipments.Charge communication means, comprising the following steps: acquisition control steering signal；Steering signal and first voltage threshold value comparison will be controlled, obtain the first testing result, and steering signal and second voltage threshold value comparison will be controlled, obtain the second testing result, wherein, second voltage threshold value is lower than first voltage threshold value, there is the operating voltage amplitude of control steering signal or the absolute value of operating voltage peak value between first voltage threshold value and second voltage threshold value, and exists lower than second voltage threshold value and/or higher than the operating voltage amplitude for controlling steering signal of second voltage threshold value or the absolute value of operating voltage peak value；And in response to the first testing result and the second testing result combination and generate the first judging result, the first judging result indicates the state of charging equipment and/or power receiving equipment.The present invention can be realized accurate, efficient communication.

Description

A kind of charging communication means Charge Management equipment and charging equipment

Technical field

The present invention relates to a kind of charging communication means, Charge Management equipment and charging equipments.More particularly, to one kind It can be according to the mechanism of control steering signal (Control Pilot, CP) fast resolving equipment state.

Background technique

Electric energy is increasingly taken seriously as a kind of clean energy resource, and especially in field of vehicles, chargeable automobile becomes A kind of option of future transportation tool.Due to be that the chargeable vehicles such as chargeable automobile are supplemented by high-voltage electricity such as alternating currents Electric energy, safety can not be ignored.It is communicated as connection charging equipment with the charging of the power receiving equipment of chargeable automobile etc., essence True property, timeliness are to ensure the basis of charging safety, thus accurate, efficient communication is particularly important.

More specifically, system needs for example when artificial charging interruption or power receiving equipment needs stopping charging occurring The information is communicably parsed, and charging equipment is allowed to disconnect power output as early as possible.Chinese national standard GBT18487.1-2015 It is middle by this time restriction be 100 milliseconds within.

And CPU or MCU are widely used at present to control steering signal CP(Control Pilot) parse, it analyzes Its voltage status, and further judge the state of charging.However, CPU or MCU included AD samples often limited performance, very Difficulty meets the time limit demand of national standard；If there is multiple-channel output, situation then can more deteriorate.It is adopted using additional dedicated AD Sample chip is an option, it means that additional expense, correspondingly will increase charging equipment and/or charging system at This.

Summary of the invention

According to an aspect of the present invention, a kind of charging communication means is provided, comprising the following steps:

Acquisition control steering signal；By the control steering signal and first voltage threshold value comparison, the first testing result is obtained, and And by the control steering signal and second voltage threshold value comparison, the second testing result is obtained, wherein the second voltage threshold value Lower than the first voltage threshold value, there are control guidings between the first voltage threshold value and the second voltage threshold value The operating voltage amplitude of signal or the absolute value of operating voltage peak value, and exist and be lower than the second voltage threshold value and/or height In the operating voltage amplitude of the control steering signal of the second voltage threshold value or the absolute value of operating voltage peak value；And

In response to first testing result and second testing result combination and generate the first judging result, described first Judging result indicates the state of charging equipment and/or power receiving equipment.Preferably, in the step of generating the first judging result: ringing It should be in first testing result and second testing result at the first moment, and in response to described the first of the second moment Testing result and second testing result and generate first judging result.

According to the charging communication means of one embodiment of the disclosure, wherein in the step of generating the first judging result:

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is higher than the second voltage threshold value；And at described second It carves, first testing result is that the control steering signal is higher than the first voltage threshold value, and the second detection knot Fruit is that the control steering signal is higher than the second voltage threshold value；Alternatively,

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is lower than the second voltage threshold value；And at described second It carves, first testing result is that the control steering signal is higher than the first voltage threshold value, and the second detection knot Fruit is that the control steering signal is higher than the second voltage threshold value；So, the first judging result instruction is described first The charging equipment and the power receiving equipment have been in electrical uncoupled state between moment and second moment；

Also, the method also includes steps: being based on first judging result, the charging equipment disconnects power output.

According to the charging communication means of another embodiment of the disclosure or aforementioned any embodiment, wherein sentence in generation first In the step of disconnected result: if first testing result is the control steering signal lower than described at first moment First voltage threshold value, and second testing result is that the control steering signal is lower than the second voltage threshold value；And Second moment, first testing result are lower than the first voltage threshold value for the control steering signal, and described Second testing result is that the control steering signal is higher than the second voltage threshold value；So, the first judging result instruction The power receiving equipment is the state for needing to stop charging between first moment and second moment；Also, the side Method is further comprised the steps of: based on first judging result, and the charging equipment disconnects power output.

According to the charging communication means of another embodiment of the disclosure or aforementioned any embodiment, wherein further include following step It is rapid: to obtain the control steering signal using AD sampling and ignore first judging result, correspond directly to the control Steering signal and generate the second judging result, second judging result indicates the charging equipment and/or the power receiving equipment State.

According to the charging communication means of another embodiment of the disclosure or aforementioned any embodiment, wherein further comprise the steps of: and work as When second judging result indicates that the power receiving equipment is the state for needing to stop charging, and/or when the second judgement knot When fruit indicates that the charging equipment and the power receiving equipment have been in electrical uncoupled state, the charging equipment disconnects electricity It can output.

According to the charging communication means of another embodiment of the disclosure or aforementioned any embodiment, wherein further include following step It is rapid:

By the control steering signal and tertiary voltage threshold value comparison, third testing result is obtained, wherein the tertiary voltage threshold Value is lower than the second voltage threshold value, and the tertiary voltage threshold value is close to 0V；

Third judging result is generated in response to the third testing result, when the third judging result instruction control is led When drawing the state of signal wire appearance short circuit, the charging equipment disconnects power output and the control steering signal disconnects output.

According to another aspect of the present invention, a kind of charging equipment is provided, comprising:

Acquisition module is used for acquisition control steering signal；

Comparison module, the comparison module include first comparator and the second comparator, and the first comparator is used for will be described It controls steering signal and first voltage threshold value comparison and exports the first testing result, second comparator is used for the control Steering signal and second voltage threshold value comparison simultaneously export the second testing result, wherein the second voltage threshold value is lower than described the One voltage threshold, there are the work of the control steering signal between the first voltage threshold value and the second voltage threshold value The absolute value of voltage magnitude or operating voltage peak value, and exist lower than the second voltage threshold value and/or higher than described second The operating voltage amplitude of the control steering signal of voltage threshold or the absolute value of operating voltage peak value；And

Judgment module is used for the combination in response to first testing result and second testing result and generates first and sentence Break as a result, first judging result indicates the state of charging equipment and/or power receiving equipment.

According to the charging equipment of one embodiment of the disclosure, wherein the control steering signal is connected to described first simultaneously The first input port of comparator and second comparator, the first voltage threshold value are input to the of the first comparator Two input ports, the second voltage threshold value are input to the second input port of second comparator.

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the equipment further include: hair Module is sent, being used to send according to state generation includes indicating that the charging equipment and/or the power receiving equipment execute The signal of the instruction of corresponding actions.

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the comparison module is also used In: in response to first testing result and second testing result at the first moment, and the institute in response to the second moment It states the first testing result and second testing result and generates first judging result.

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the judgment module is also used In:

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is higher than the second voltage threshold value；And in the second moment, institute Stating the first testing result is that the control steering signal is higher than the first voltage threshold value, and second testing result is institute It states control steering signal and is higher than the second voltage threshold value；Alternatively,

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is lower than the second voltage threshold value；And in the second moment, institute Stating the first testing result is that the control steering signal is higher than the first voltage threshold value, and second testing result is institute It states control steering signal and is higher than the second voltage threshold value；

So, the first judging result instruction charging equipment and institute between first moment and second moment It states power receiving equipment and has been in electrical uncoupled state；

The sending module is also used to send the finger that power output is disconnected including the charging equipment generated according to the state The signal of order.

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the judgment module is also used In: if first testing result is that the control steering signal is lower than the first voltage threshold value at first moment, And second testing result is that the control steering signal is lower than the second voltage threshold value；And at second moment, First testing result is that the control steering signal is lower than the first voltage threshold value, and second testing result is The control steering signal is higher than the second voltage threshold value；

So, the first judging result instruction power receiving equipment between first moment and second moment is to need Stop the state of charging；

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the comparison module also wraps Third comparator is included, the third comparator is used for the control steering signal and tertiary voltage threshold value comparison and exports third Testing result, wherein the tertiary voltage threshold value is lower than the second voltage threshold value, and the tertiary voltage threshold value is close 0V；

The judgment module is also used to: generating third judging result in response to the third testing result；

The sending module is also used to: indicating that the state of short circuit occurs in the control steering signal line in the third judging result When, send according to the state generates include the charging equipment disconnection power output instruction and the control guidance fuze Number disconnect output instruction signal.

Acquisition module is used for acquisition control steering signal；

Comparison module, the comparison module include first comparator and the second comparator, and the first comparator is used for will be described It controls steering signal and first voltage threshold value comparison and exports the first testing result, second comparator is used for the control Steering signal and second voltage threshold value comparison simultaneously export the second testing result, wherein the second voltage threshold value is lower than described the One voltage threshold, there are the work of the control steering signal between the first voltage threshold value and the second voltage threshold value The absolute value of voltage magnitude or operating voltage peak value, and exist lower than the second voltage threshold value and/or higher than described second The operating voltage amplitude of the control steering signal of voltage threshold or the absolute value of operating voltage peak value；

Judgment module is used for the combination in response to first testing result and second testing result and generates first and sentence Break as a result, first judging result indicates the state of charging equipment and/or power receiving equipment；And action module, it is used for root Corresponding electrical action is executed according to the state.

Wherein, the action module is also used to execute the electro-pneumatic that the charging equipment disconnects power output according to the state Make.

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is lower than the second voltage threshold value；And at described second It carves, first testing result is that the control steering signal is lower than the first voltage threshold value, and the second detection knot Fruit is that the control steering signal is higher than the second voltage threshold value；

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the charging equipment also wraps Include the AD sample circuit for obtaining the control steering signal；Wherein, ignore the first judgement knot of the judgment module Fruit, the AD sample circuit correspond directly to the control steering signal and generate the second judging result, the second judgement knot Fruit indicates the state of the charging equipment and/or the power receiving equipment.

According to the charging equipment of another embodiment of the disclosure or aforementioned any embodiment, wherein the action module is also used In: sentence when second judging result indicates that the power receiving equipment is to need to stop the state of charging, and/or when described second Disconnected result is filled described in executing when indicating to be in electrical uncoupled state between the charging equipment and the power receiving equipment The electrical action of electric equipment disconnection power output.

The judgment module is also used to: generating third judging result in response to the third testing result；The action module It is also used to: when the third judging result indicates that the state of short circuit occurs in the control steering signal line, executing the charging Equipment disconnects power output and the control steering signal disconnects the electrical action of output.

It will become apparent according to the following description and drawings features above of the invention and operation.

Detailed description of the invention

From the following detailed description in conjunction with attached drawing, it will keep above and other purpose and advantage of the invention more complete It is clear, wherein the same or similar element, which is adopted, to be indicated by the same numeral.

Fig. 1 is the operating voltage schematic diagram according to one embodiment of the invention.

Fig. 2 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 3 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 4 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 5 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 6 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 7 is the flow chart according to the charging communication means of one embodiment of the invention.

Fig. 8 is the schematic diagram according to the positional relationship of the Charge Management equipment of one embodiment of the invention.

Fig. 9 is the block diagram according to the Charge Management equipment of one embodiment of the invention.

Figure 10 is the structure chart according to the comparison module of one embodiment of the invention.

Figure 11 is the schematic diagram according to the Charge Management equipment communication path of one embodiment of the invention.

Figure 12 is the block diagram according to the charging equipment of one embodiment of the invention.

Specific embodiment

For succinct and illustrative purpose, this paper Primary Reference its example embodiment describes the principle of the present invention.But It is filled those skilled in the art will readily recognize that identical principle can be equally applied to all types of charging communication means Electric management equipment and charging equipment, and these the same or similar principles can be implemented within, any such variation is not Away from the true spirit and range of present patent application.Moreover, in the following description, with reference to attached drawing, these drawing illustrations are specific Example embodiment.Electricity, logic sum can be carried out to these embodiments under the premise of without departing substantially from the spirit and scope of the present invention Change in structure.Although in addition, the invention is characterized in that in conjunction with several implementation/embodiments only one of them come disclosed in, But as may be expectation for any given or identifiable function and/or advantageous, can by this feature and other implement/ Other one or more features of embodiment are combined.Therefore, it is described below and is not construed as in a limiting sense, and this The range of invention is defined by appended claims and its equivalent.

Control steering signal is for the communication between power receiving equipment (such as vehicle) and charging equipment (such as charging pile) Signal, for example, charging pile can be by controlling steering signal output pulse width modulated signal PWM(Pulse Width Modulation), and then the information such as maximum output current of the current charging pile of vehicle are informed；Vehicle can guide control Signal is divided, and reflects the connection and charged state of vehicle and charging pile to charging pile by voltage.Thus, one As for, control the aliasing signal that can be pulse width modulating signal and voltage signal that carries on steering signal line, it is above The level of signal is referred to as operating voltage.

As shown in Figure 1, charging pile back production is the high level voltage value based on pulse width modulating signal.Referring to figure 1, the control steering signal of back production includes the operating voltage of the stabilization amplitude of 9V, 12V and the absolute value of maximum amplitude (peak value) For the operating voltage of the pulse width modulating signal of 6V, 9V.According to sequence from big to small define U=6V, V=9V, W= 12V.Traditional method using the AD sample circuit of the CPU MCU device of such as charging pile come acquisition control steering signal, and The processing such as further progress filtering.On the other hand, in order to guarantee the accuracy and reliability sampled, AD sample circuit needs multiple Using confirming accuracy.The AD sample circuit general performance of the CPU MCU device of charging pile is limited, deposits in multiple-channel output Scene under (such as there are multiple vehicles to need to charge) sample rate will significantly deteriorate, also will to the parsing of control steering signal It is affected therewith.If control steering signal carrying is that user extracts the information such as charging gun, according to require should be The electric current output of charging gun is disconnected in 100ms, and this target is difficult to realize in the above scenario.For another example, when automobile needs stop (S2 switch is disconnected) when only charging, and CPU first or MCU need to collect the signal under the premise of guaranteeing accurately, secondly CPU or MCU or other control units need to control relay, and perhaps contactor stops output then relay or contactor Output is disconnected after the time of reaction.This process takes a long time.On the other hand, in order to increase sample frequency, CPU Or the load of MCU etc. can dramatically increase, it is likely that lead to unscheduled program mal.If sampled using additional individually AD Circuit then will lead to cost increase, this is also to lose more than gain.Since direct comparison voltage can directly determine control guidance fuze Number voltage range section, without determine control steering signal specific voltage value, and use AD sampling it needs to be determined that The specific voltage value of steering signal is controlled, so the present invention is faster than traditional AD sampling.

And the level for controlling steering signal inherently include charging equipment (such as, charging pile) and power receiving equipment (such as, By electric car) information.For example, vehicle needs to stop to fill when the control steering signal for detecting acquisition jumps to 9V from 6V Electricity；When the control steering signal for detecting acquisition jumps to 12V from 9V or directly jumps to 12V from 6V, user will charge Rifle is pulled out from vehicle.For above-mentioned two situations, charging pile needs to disconnect power output immediately, to guarantee that equipment and personnel is pacified Entirely.If not detecting above-mentioned signal jump, for example, the absolute value that the control steering signal of acquisition is maximum amplitude is 6V Stable pulse bandwidth modulation signals, show that vehicle just receives charging at this time.

In general, the control steering signal of aliasing has included at least the signal of three amplitudes, by the letter of these three amplitudes Certain control steering signal can be parsed by number being distinguish, and further wherein be indicated according to control steering signal parsing The status information of charging equipment, power receiving equipment.

In order to distinguish the signal of three amplitudes as described above, use in one embodiment two voltage thresholds by its into Row classification.Threshold voltage for classification can be initially specified, such as first voltage threshold value V can be set_th1 = 10.5V, second voltage threshold value V_th2= 7.5V.The threshold value initially specified above is for three amplitudes 12V, 9V and 6V , can also correspondingly specify other threshold values electric other voltage magnitudes while being other amplitudes (such as control steering signal) Pressure.In general, being staggeredly spaced when needing to sort initially specified voltage and the voltage magnitude to be classified by voltage swing (such as: 12V, 10.5V, 9V, 7.5V, 6V).The example initially specified as one, specified threshold value can will be inserted The average value (such as 10.5V=(12V+9V)/2,7.5V=(9V+6V)/2) of the voltage magnitude at both ends, will manage Solution, and other voltage values between two endpoints are also to allow as voltage threshold.

Other than using initial specify, it can also be referred to again by way of update according to engineering experience or other demands Determine threshold voltage.Other than using initial specify, threshold voltage can also be updated by the method for machine learning, so that classification It is more scientific, efficient.And in single machine using classification thresholds can also by such as network share by the way of supply other single machines With reference to.Single machine can be learnt based on local machine and/or the result of the sharing of other single machines reassigns threshold voltage.Above more The scheme of new threshold voltage is applicable not only to fixed amplitude voltage, is also applied for the amplitude voltage changed.

To control steering signal there are for the signal of three amplitudes, single machine (charging equipment) can be set two threshold values and use Classify in it.The result of classification may refer to table 1(, and wherein existing measurement result is not answered in grey expression, or is compared Circuit breaks down, similarly hereinafter), wherein the first (voltage) threshold value is higher than second (voltage) threshold value.In table 1, guidance fuze will be controlled Number voltage magnitude is higher than threshold value and is denoted as " high (1) ", and control steering signal voltage magnitude lower than threshold value is denoted as " low (0) ".Due to Two standards of comparison are co-existed in, thus 4 kinds of comparison results can be formed.

The control of table 1. steering signal state table (for example, first voltage threshold value=10.5V, and second voltage threshold value= 7.5V)

It is controlled with further reference to content shown in table 1 if testing result is shown to be higher than what the first, second threshold value was all come The voltage of guidance fuze number can be the constant voltage of such as 12V.At this point, charging equipment, power receiving equipment be not attached or Person and connection not yet in effect, this judging result can be used as control line with the presence or absence of the Rule of judgment of open circuit.

If testing result is shown to be lower than first threshold and second threshold is high, control steering signal voltage between It can be the constant voltage of such as 9V or the pwm signal of 9V between 10.5V and 7.5V.Show charging equipment, power receiving equipment at this time Complete the connection of first stage.

If testing result is shown to be lower than what the first, second threshold value was all come, the signal of control steering signal line is answered When at least below 7.5V.It can be the constant voltage of such as 6V or the pwm signal of 6V as exemplary.Show that charging is set at this time Standby, power receiving equipment completes the connection of second stage.Charging equipment, power receiving equipment just carry out effectively electrical energy transportation.As another One is exemplary, and the signal of control steering signal line is 0V, controls guide wire probably at both ends or middle section by short It connects, short circuit can reside on one of charging equipment, power receiving equipment, signal wire or more persons, this judging result can be made For the condition of control guide wire level protection.

If testing result is shown to be higher than first threshold and second threshold is low, comparison circuit breaks down；Or There is failure from comparison circuit to some intermediate link for generating last judging result.

Table 1 show in single point in time scale measurement control steering signal as a result, if it is considered that the survey at least moment Amount is as a result, then available state transition table as described in Table 2.

The control of table 2. steering signal state change table (for example, first voltage threshold value=10.5V, and second voltage threshold value =7.5V)

Confidence level further can be increased to measurement result using two moment measurements, can ignored due to factors such as signal interferences Caused abnormal signal or comparison result are abnormal.In addition, when two moment apart arrive can detecte degree that level jumps when, can Further to make more accurate judgement according to signal condition variation.

Referring to table 3, it illustrates relatively judge charging equipment and/or power receiving equipment according to the voltage of adjacent moment to generate The concrete scheme of state.

As exemplary, if the first moment and the second moment all show voltage lower than 7.5V, as an example, can be The constant voltage of such as 6V or the pwm signal of 6V.It is defeated to show that charging equipment, power receiving equipment are just carrying out continuously and effectively electric energy at this time It send.

Referring to fig. 2, the present invention provides a kind of charging communication means comprising following steps: S202, acquisition control guiding letter Number；Control steering signal and first voltage threshold value comparison are obtained the first testing result by S204, and will control steering signal With second voltage threshold value comparison, the second testing result is obtained, wherein second voltage threshold value is lower than first voltage threshold value, described the There are the operating voltage amplitudes or operating voltage of the control steering signal between one voltage threshold and the second voltage threshold value The absolute value of peak value, and exist and be lower than the second voltage threshold value and/or the control higher than the second voltage threshold value The operating voltage amplitude of steering signal or the absolute value of operating voltage peak value；S206 is examined in response to the first testing result and second It surveys result and generates the combination of the first judging result, the first judging result indicates the state of charging equipment and/or power receiving equipment.

Preferably, in response to first testing result at the first moment and the second testing result, and in response to the second moment The first testing result and the second testing result and generate the first judging result.As an example, referring to Fig. 3, if at first It carves, the first testing result is that control steering signal is lower than first voltage threshold value, and the second testing result is control steering signal Higher than second voltage threshold value (i.e. step S3042)；And at the second moment, the first testing result is that control steering signal is higher than first Voltage threshold, and the second testing result is that control steering signal is higher than second voltage threshold value (i.e. step S3044), then from the It is carved into the jump of the second moment realization 9V to 12V for the moment；Alternatively, referring to fig. 4, if at the first moment, the first testing result is It controls steering signal and is lower than first voltage threshold value, and the second testing result is that control steering signal is lower than second voltage threshold value (i.e. step S4042)；And at the second moment, the first testing result is that control steering signal is higher than first voltage threshold value, and the Two testing results are that control steering signal is higher than second voltage threshold value (i.e. step S3044)；When so from the first moment to second Carve the jump for realizing 6V to 12V.The first judging result can indicate actively will between the first moment and the second moment in turn Charging equipment and power receiving equipment are electrical decoupling (for example, having extracted charging gun) (i.e. step S3046, S4046), should incite somebody to action at this time Charging equipment disconnects power output (i.e. step S3048, S4048), to guarantee the safety of personnel and equipment.

As an example, referring to Fig. 5, if the first testing result is control steering signal lower than the first electricity at the first moment Threshold value is pressed, and the second testing result is that control steering signal is lower than second voltage threshold value (i.e. step S5042)；And at second It carves, the first testing result is that control steering signal is lower than first voltage threshold value, and the second testing result is control steering signal Higher than second voltage threshold value (i.e. step S5044)；To which the first moment realized the jump of 6V to 9V to the second moment；So, First judging result instruction power receiving equipment between the first moment and the second moment needs to stop charging (for example, charging equipment is complete At charging) (i.e. step S5046), charging equipment should be disconnected power output (i.e. step S5048) at this time, to guarantee personnel With the safety of equipment.

Further example can be exported according to following table 3.

3. state instruction table of table (for example, first voltage threshold value=10.5V, and second voltage threshold value=7.5V)

Although above example is all the state by the first judging result analyzing device.But the first judgement knot can also be ignored Fruit is sampled using AD as shown in Figure 6 and obtains control steering signal (i.e. step S606), and control guiding is corresponded directly to Signal and generate the second judging result, to obtain the state of charging equipment and/or power receiving equipment.First judging result and second The generation of judging result is unrestricted in timing, can be the generation after one first one, or parallel generation.Further Ground, when the second judging result instruction power receiving equipment is to need to stop the state of charging (step S608), charging equipment is disconnected Power output (i.e. step S612)；When the second judging result instruction charging equipment has been in electrical uncoupled with power receiving equipment When state (step S610), charging equipment disconnects power output (i.e. step S614).

Additionally, if testing result is shown to be all lower than the first, second threshold value, the signal of steering signal line is controlled It should be at least below 7.5V.It can be such as 0V or 6V as exemplary.At this point it is possible to add threshold voltage V_th3Come further Classification.For example, as illustrated in FIG. 7, steering signal and tertiary voltage threshold value comparison will be also controlled, third testing result is obtained (i.e. step S702), wherein tertiary voltage threshold value V_th3Lower than second voltage threshold value V_th2, and tertiary voltage threshold value is close to 0V；It rings Third judging result (i.e. step S704) should be generated in third testing result, third judging result instruction control steering signal line Occur short circuit when, at this time should by charging equipment disconnect power output and should disconnect control steering signal disconnect output (walk Rapid S706), to guarantee the safety of personnel and equipment.Likewise, introduce tertiary voltage threshold value judgement can also with it is above Moment judgement combines.Confidence level further can be increased to measurement result using the measurement of two moment, can ignore due to Abnormal signal caused by the factors such as signal interference or comparison result are abnormal.In addition, can detecte level when two moment apart arrive When the degree jumped, more accurate judgement further can be made according to signal condition variation.

Predictably, if introducing tertiary voltage threshold value, corresponding table 1, table 2, table 3 scale expand synchronous.

In order to realize that target of the invention, the present invention provide a kind of Charge Management equipment.Referring to Fig. 8, which is set Standby 800 can be placed in the side of charging equipment 8001 or power receiving equipment 8002, be included in inside charging equipment or power receiving equipment；Or Person is placed between the two and is placed outside charging equipment or power receiving equipment.

Referring to Fig. 9, Charge Management equipment includes: acquisition module 801, acquisition control steering signal；Comparison module 802, than It include first comparator 8021 and the second comparator 8022 compared with module, first comparator 8021 will control steering signal and the first electricity It presses threshold value comparison and exports the first testing result, and the second comparator 8022 will control steering signal and second voltage threshold value ratio Relatively and the second testing result being exported, control steering signal is connected to the first input port of first comparator and the second comparator, First voltage is connected to the second input port of first comparator and first voltage is connected to the second input terminal of the second comparator Mouthful, wherein second voltage threshold value is lower than first voltage threshold value, there is control between first voltage threshold value and second voltage threshold value The operating voltage amplitude of steering signal or the absolute value of operating voltage peak value, and exist and be lower than second voltage threshold value and/or height In the operating voltage amplitude of the control steering signal of second voltage threshold value or the absolute value of operating voltage peak value；Judgment module 803, Judgment module in response to the first testing result and the second testing result combination and generate the first judging result, the first judging result Indicate the state of charging equipment and/or power receiving equipment.Since comparator can directly determine the voltage range of control steering signal Section without determining the specific voltage value of control steering signal, and uses AD to sample it needs to be determined that controlling steering signal Specific voltage value, so the present invention is faster than traditional AD sampling.

Referring to Figure 10, it illustrates the comparison module of two comparators, first comparator will control steering signal (CP letter Number) compared with first voltage 10.5V and export the first testing result, and the second comparator will control steering signal (CP signal) Compared with second voltage 7.5V and the second testing result is exported, control steering signal is connected to first comparator and the second comparator "-" pole, first voltage is connected to the "+" pole of first comparator and first voltage is connected to the "+" pole of the second comparator.

Charge Management equipment can also include sending module 804, and sending module charges according to what state generated including instruction Equipment and/or power receiving equipment execute the signal of the instruction of corresponding actions.

With further reference to content shown in table 1, if testing result is shown to be higher than what the first, second threshold value was all come, that The voltage for controlling steering signal can be the constant voltage of such as 12V.At this point, charging equipment, power receiving equipment are not connected Connect or and connection not yet in effect, this judging result can be used as control line with the presence or absence of open circuit Rule of judgment.

The working principle of Charge Management equipment may refer to table 1, if first comparator testing result is shown to be than first Threshold value is low and the second comparator testing result is shown to be second threshold height, then the voltage of control steering signal between 10.5V with It can be the constant voltage of such as 9V or the pwm signal of 9V between 7.5V.Show that charging equipment, power receiving equipment complete at this time The connection of first stage.If testing result is shown to be lower than what the first, second threshold value was all come, control steering signal line Signal should be at least below 7.5V.It can be the constant voltage of such as 6V or the pwm signal of 6V as exemplary.Show at this time Charging equipment, power receiving equipment complete the connection of second stage.Charging equipment, power receiving equipment just carry out effectively electrical energy transportation. As another example, the signal for controlling steering signal line is 0V, controls guide wire probably in both ends or middle section It is shorted, short circuit can reside on one of charging equipment, power receiving equipment, signal wire or more persons, this judging result It can be used as the condition of control guide wire level protection.If testing result is shown to be higher than first threshold and second threshold is low, So comparison circuit breaks down；Or there is event from comparison circuit to some intermediate link for generating last judging result Barrier.

The working principle of Charge Management equipment can be with further reference to table 3, and it illustrates the voltage ratios according to adjacent moment Relatively generate the concrete scheme for judging charging equipment and/or power receiving equipment state.Comparison module in response to the first moment first Testing result and the second testing result, and in response to the second moment the first testing result and the second testing result and generate One judging result.

It,, can be with as exemplary if the first moment and the second moment all show voltage lower than 7.5V as exemplary For the constant voltage of such as 6V or the pwm signal of 6V.Show that charging equipment, power receiving equipment just carry out continuously and effectively electric energy at this time Conveying.

As exemplary, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is higher than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is higher than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (9V To the jump of 12V)；Alternatively, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is lower than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is higher than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (6V To the jump of 12V)；So, the first judging result instruction charging equipment and power receiving equipment have been in electrical uncoupled state When (for example, having extracted charging gun), sending signal at this time includes the instruction that the charging equipment disconnects power output, with guarantor The safety of member and equipment.

As exemplary, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is lower than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is lower than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (6V To the jump of 9V)；So, the first judging result instruction power receiving equipment between the first moment and the second moment needs to stop charging (for example, charging equipment completes charging), sending signal at this time includes the instruction that the charging equipment disconnects power output, to protect The safety of witness person and equipment.

It is arranged between charging equipment and power receiving equipment referring to Figure 11, such as Charge Management equipment.Sending signal can be through At least one of charging equipment, power receiving equipment are sent to by control steering signal line (CP), at this point, sending signal should have not It is same as the feature of known signal on control steering signal line, such as with different voltage magnitudes, pulse frequency etc..In order to avoid In addition the reading for influencing transmission signal can also be arranged and send signal line 805, and then can be directly to charging equipment, by electricity At least one of equipment sends instruction, and charging equipment, power receiving equipment can be saved isolates transmission letter from control steering signal Number process.

Additionally, if testing result is shown to be lower than what the first, second threshold value was all come, control steering signal line Signal should be at least below 7.5V.It can be such as 0V or 6V as exemplary.Come at this point it is possible to add threshold voltage into one Step separation.With further reference to Fig. 9, for example, setting third comparator 8023, will control steering signal and tertiary voltage threshold value comparison And third testing result is exported, wherein tertiary voltage threshold value is lower than second voltage threshold value, and tertiary voltage threshold value is close to 0V；It rings Third judging result should be generated in third testing result, when there is short circuit in third judging result instruction control steering signal line, Sending signal at this time includes that the charging equipment disconnects the instruction of power output and disconnects the instruction of control steering signal, to guarantee The safety of personnel and equipment.Likewise, introduce tertiary voltage threshold value judgement can also with it is above at the time of judgement combined Come.Confidence level further can be increased to measurement result using two moment measurements, can ignored due to factors such as signal interferences Caused abnormal signal or comparison result are abnormal.In addition, when two moment apart arrive can detecte degree that level jumps when, can Further to make more accurate judgement according to signal condition variation.Predictably, if introducing tertiary voltage threshold value, Corresponding table 1, table 2, table 3 scale expand synchronous.The connection side of the connection type of third comparator and the first and second comparator Formula is similar.

Referring to Figure 12, in order to realize that target of the invention, the present invention provide a kind of charging equipment 900.It include: acquisition module 901, acquisition module acquisition control steering signal；Comparison module 902, comparison module include that first comparator 9021 and second are compared Device 9022, first comparator 9021 will control steering signal and first voltage threshold value comparison and export the first testing result, and Second comparator will control steering signal and second voltage threshold value comparison and export the second testing result, control steering signal connection To the first input port of first comparator and the second comparator, first voltage is connected to the second input port of first comparator And first voltage is connected to the second input port of the second comparator, wherein second voltage threshold value is lower than first voltage threshold value, There is the operating voltage amplitude or operating voltage peak value for controlling steering signal between first voltage threshold value and second voltage threshold value Absolute value, and there is the operating voltage of the control steering signal lower than second voltage threshold value and/or higher than second voltage threshold value The absolute value of amplitude or operating voltage peak value；Judgment module 903, judgment module are tied in response to the first testing result and the second detection The combination of fruit and generate the first judging result, the first judging result indicates the state of charging equipment and/or power receiving equipment；And it is dynamic Make module 904, action module executes corresponding electrical action according to state.

The internal structure of comparison module and comparison module illustrated in fig. 10 can be referred to the connection relationship of signal.

The working principle of charging equipment may refer to table 1, if first comparator testing result, which is shown to be, compares first threshold Low and the second comparator testing result is shown to be second threshold height, then the voltage of control steering signal is between 10.5V and 7.5V Between, it can be the constant voltage of such as 9V or the pwm signal of 9V.Show that charging equipment, power receiving equipment complete first at this time The connection in stage.If testing result is shown to be lower than what the first, second threshold value was all come, the signal of steering signal line is controlled It should be at least below 7.5V.It can be the constant voltage of such as 6V or the pwm signal of 6V as exemplary.Show to charge at this time Equipment, power receiving equipment complete the connection of second stage.Charging equipment, power receiving equipment just carry out effectively electrical energy transportation.As Another exemplary, the signal of control steering signal line is 0V, control guide wire probably both ends or middle section by It is shorted, short circuit can reside on one of charging equipment, power receiving equipment, signal wire or more persons, this judging result can be with Condition as control guide wire level protection.If testing result is shown to be higher than first threshold and second threshold is low, Comparison circuit breaks down；Or there is failure from comparison circuit to some intermediate link for generating last judging result.

The working principle of charging equipment can with further reference to table 3, it illustrates according to the voltage of adjacent moment relatively come Generate the concrete scheme for judging charging equipment and/or power receiving equipment state.First detection of the comparison module in response to the first moment As a result with the second testing result, and in response to the second moment the first testing result and the second testing result and generate first and sentence Disconnected result.

As exemplary, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is higher than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is higher than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (9V To the jump of 12V)；Alternatively, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is lower than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is higher than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (6V To the jump of 12V)；So, the first judging result instruction charging equipment and power receiving equipment have been in electrical uncoupled state When (for example, having extracted charging gun), at this time electrical action be charging equipment disconnect power output, to guarantee the peace of personnel and equipment Entirely.

As exemplary, if the first testing result is that control steering signal is lower than first voltage threshold value at the first moment, And the second testing result is that control steering signal is lower than second voltage threshold value；And at the second moment, the first testing result is control Guidance fuze number is lower than first voltage threshold value, and the second testing result is that control steering signal is higher than second voltage threshold value (6V To the jump of 9V)；So, the first judging result instruction power receiving equipment between the first moment and the second moment needs to stop charging (for example, charging equipment completes charging), electrical action is that charging equipment disconnects power output at this time, to guarantee personnel and equipment Safety.

Although above example is all the state by the first judging result analyzing device.But the first judgement can also be ignored As a result, obtaining control steering signal using Analog-digital Converter, corresponds directly to control steering signal and generate the second judgement knot Fruit, to obtain the state of charging equipment and/or power receiving equipment.Further, when the second judging result instruction power receiving equipment is When needing to stop the state of charging, electrical action is that charging equipment disconnects power output, to guarantee the safety of personnel and equipment；When When second judging result instruction charging equipment and power receiving equipment have been in electrical uncoupled state, electrical action is that charging is set It is standby to disconnect power output, to guarantee the safety of personnel and equipment.

Additionally, if testing result is shown to be lower than what the first, second threshold value was all come, control steering signal line Signal should be at least below 7.5V.It can be such as 0V or 6V as exemplary.Come at this point it is possible to add threshold voltage into one Step separation.For example, steering signal and tertiary voltage threshold value comparison will be controlled, third testing result is obtained, wherein tertiary voltage threshold Value is lower than second voltage threshold value, and tertiary voltage threshold value is close to 0V；Third judgement knot is generated in response to third testing result Charging equipment should be disconnected power output at this time when short circuit occurs in third judging result instruction control steering signal line by fruit, with The safety of guarantee personnel and equipment.Likewise, introduce tertiary voltage threshold value judgement can also with it is above at the time of judgement tie Altogether.Confidence level further can be increased to measurement result using two moment measurements, can ignored due to signal interference etc. Abnormal signal caused by factor or comparison result are abnormal.In addition, when two moment apart arrive the degree that level jumps that can detecte When, more accurate judgement further can be made according to signal condition variation.Predictably, if introducing tertiary voltage Threshold value, corresponding table 1, table 2, table 3 scale expand synchronous.The connection type of third comparator and the first and second comparator Connection type is similar.

It should be noted that some block diagrams shown in the drawings are functional entitys, not necessarily must with physically or logically Upper independent entity is corresponding.These functional entitys can be realized using software form, or in one or more hardware moulds These functional entitys are realized in block or integrated circuit, or in heterogeneous networks and/or processor device and/or microcontroller device Middle these functional entitys of realization.

Example above primarily illustrates charging communication means, Charge Management equipment and the charging equipment of the disclosure.Although Only some of embodiments of the present invention are described, but those of ordinary skill in the art are it is to be appreciated that the present invention It can implement without departing from its spirit in range in many other form.Therefore, the example and embodiment quilt shown Be considered as it is illustrative and not restrictive, in the feelings for not departing from the spirit and scope of the present invention as defined in appended claims Under condition, the present invention may cover various modification and replacement.

Claims

1. a kind of charging communication means, which is characterized in that the described method comprises the following steps:

Acquisition control steering signal；

By the control steering signal and first voltage threshold value comparison, the first testing result is obtained, and the control is guided Signal and second voltage threshold value comparison obtain the second testing result, wherein the second voltage threshold value is lower than the first voltage Threshold value, there are the operating voltage width of the control steering signal between the first voltage threshold value and the second voltage threshold value The absolute value of value or operating voltage peak value, and exist lower than the second voltage threshold value and/or be higher than the second voltage threshold The operating voltage amplitude of the control steering signal of value or the absolute value of operating voltage peak value；And

In response to first testing result and second testing result combination and generate the first judging result, described first Judging result indicates the state of charging equipment and/or power receiving equipment.

2. the method according to claim 1, wherein in the step of generating the first judging result:

In response to first testing result and second testing result at the first moment, and the institute in response to the second moment It states the first testing result and second testing result and generates first judging result.

3. according to the method described in claim 2, it is characterized in that, in the step of generating the first judging result:

If first testing result is that the control steering signal is lower than the first voltage threshold at first moment Value, and second testing result is that the control steering signal is lower than the second voltage threshold value；And at described second It carves, first testing result is that the control steering signal is higher than the first voltage threshold value, and the second detection knot Fruit is that the control steering signal is higher than the second voltage threshold value；

4. according to the method described in claim 2, it is characterized in that, in the step of generating the first judging result:

5. the method according to claim 1, wherein the method also includes following steps: being obtained using AD sampling The control steering signal and ignore first judging result, correspond directly to the control steering signal and generate the Two judging results, second judging result indicate the state of the charging equipment and/or the power receiving equipment.

6. according to the method described in claim 5, it is characterized in that, the method also includes steps:

When second judging result indicates that the power receiving equipment is to need to stop the state of charging, and/or work as described second When judging result indicates that the charging equipment and the power receiving equipment have been in electrical uncoupled state, the charging equipment Disconnect power output.

7. method according to claim 1-6, which is characterized in that the method also includes following steps:

8. a kind of Charge Management equipment, which is characterized in that the equipment includes:

Acquisition module is used for acquisition control steering signal；

9. equipment according to claim 8, which is characterized in that the control steering signal is connected to first ratio simultaneously Compared with the first input port of device and second comparator, the first voltage threshold value is input to the second of the first comparator Input port, the second voltage threshold value are input to the second input port of second comparator.

10. equipment according to claim 8, which is characterized in that the equipment further include:

Sending module, being used to send generate according to the state includes indicating the charging equipment and/or described being set by electricity The signal of the standby instruction for executing corresponding actions.

11. equipment according to claim 10, which is characterized in that the comparison module is also used to: in response to the first moment First testing result and second testing result, and in response to first testing result at the second moment and institute It states the second testing result and generates first judging result.

12. equipment according to claim 11, which is characterized in that the judgment module is also used to:

13. equipment according to claim 11, which is characterized in that the judgment module is also used to:

14. according to the described in any item equipment of claim 8-13, it is characterised in that:

The comparison module further includes third comparator, and the third comparator is used for the control steering signal and third electricity Pressure threshold value comparison simultaneously exports third testing result, wherein the tertiary voltage threshold value is lower than the second voltage threshold value, and institute Tertiary voltage threshold value is stated close to 0V；

15. a kind of charging equipment, which is characterized in that the charging equipment includes:

Acquisition module is used for acquisition control steering signal；

Judgment module is used for the combination in response to first testing result and second testing result and generates first and sentence Break as a result, first judging result indicates the state of charging equipment and/or power receiving equipment；And

Action module is used to execute corresponding electrical action according to the state.

16. equipment according to claim 15, which is characterized in that the control steering signal is connected to described first simultaneously The first input port of comparator and second comparator, the first voltage threshold value are input to the of the first comparator Two input ports, the second voltage threshold value are input to the second input port of second comparator.

17. equipment according to claim 15, which is characterized in that the comparison module is also used to: in response to the first moment First testing result and second testing result, and in response to first testing result at the second moment and institute It states the second testing result and generates first judging result.

18. equipment according to claim 17, which is characterized in that the judgment module is also used to:

19. equipment according to claim 17, which is characterized in that the judgment module is also used to:

20. equipment according to claim 15, which is characterized in that the charging equipment further includes for obtaining the control The AD sample circuit of steering signal；Wherein, ignore first judging result of the judgment module, the AD sample circuit is straight It connects in response to the control steering signal and generates the second judging result, second judging result indicates the charging equipment And/or the state of the power receiving equipment.

21. equipment according to claim 20, which is characterized in that the action module is also used to:

When second judging result indicates that the power receiving equipment is to need to stop the state of charging, and/or work as described second Described in judging result executes when indicating to be in electrical uncoupled state between the charging equipment and the power receiving equipment The electrical action of charging equipment disconnection power output.

22. the described in any item equipment of 5-21 according to claim 1, which is characterized in that the comparison module further includes third ratio Compared with device, the third comparator is used for the control steering signal and tertiary voltage threshold value comparison and exports third detection knot Fruit, wherein the tertiary voltage threshold value is lower than the second voltage threshold value, and the tertiary voltage threshold value is close to 0V；

The action module is also used to: when the third judging result indicates that the state of short circuit occurs in the control steering signal line When, execute the electrical action that the charging equipment disconnects power output and the control steering signal disconnects output.