CN114074574B - Vehicle current acquisition method and device, control equipment and automobile - Google Patents
Vehicle current acquisition method and device, control equipment and automobile Download PDFInfo
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- CN114074574B CN114074574B CN202010794071.9A CN202010794071A CN114074574B CN 114074574 B CN114074574 B CN 114074574B CN 202010794071 A CN202010794071 A CN 202010794071A CN 114074574 B CN114074574 B CN 114074574B
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012163 sequencing technique Methods 0.000 claims abstract description 9
- 238000012795 verification Methods 0.000 claims description 47
- 238000007726 management method Methods 0.000 claims description 7
- 230000008685 targeting Effects 0.000 claims description 3
- 238000013524 data verification Methods 0.000 claims description 2
- 230000010365 information processing Effects 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 description 7
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention provides a current acquisition method and device of a vehicle, control equipment and an automobile, wherein the current acquisition method comprises the following steps: acquiring characteristic information of all channels capable of collecting current signals; according to the characteristic information, the channels are subjected to priority ranking; determining a target channel according to the sequencing result; and outputting a current signal acquired from the target channel. Above-mentioned scheme has fully utilized the inside and outside electric current information of BMS to fully verified electric current information has guaranteed the robustness of electric current signal collection effectively, and the configuration is convenient, and the reliability is strong.
Description
Technical Field
The present invention relates to the field of automobiles, and in particular, to a method and apparatus for collecting current of a vehicle, a control device, and an automobile.
Background
Electric vehicles are a new direction of future development of the vehicles, and a battery management system (Battery Management System, abbreviated as BMS) is a key component of the core technology of the electric vehicles.
In the battery management system technology of an electric automobile, current data acquisition is a critical ring, and the reliability of current data acquisition and calculation directly influences the accuracy of battery State of Charge (SOC) estimation and the accuracy of driving range, and even can influence the safety of the electric automobile. That is, the accuracy of the current data collection and calculation and the fault diagnosis directly affect the service performance of the electric automobile.
At present, the prior art has at least the following defects: only one or two channels of current collector are used for verification, and no external current is used for verification, so that when two channels are invalid or abnormal or misjudged as abnormal, normally usable current cannot be output; the self-adaptive matching function of different current sensors of different projects cannot be realized.
Disclosure of Invention
The embodiment of the invention provides a current acquisition method and device of a vehicle, control equipment and an automobile, which are used for solving the problem that reliable current data cannot be acquired when a current acquisition channel of a current acquisition device fails or fails in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided a current collection method of a vehicle, including:
acquiring characteristic information of all channels capable of collecting current signals;
according to the characteristic information, the channels are subjected to priority ranking;
determining a target channel according to the sequencing result;
and outputting a current signal acquired from the target channel.
Optionally, the channels include a current collection channel of a current sensor provided inside the battery management system BMS, and/or a signal channel of the BMS for obtaining a current signal through a CAN (Controller Area Network ) bus.
Optionally, the characteristic information includes fault status, accuracy, reliability and relevance; wherein, the relevance is used for representing the relevance between the channels.
Optionally, the prioritizing the channels according to the feature information includes:
the channels are prioritized according to at least one of the accuracy and reliability.
Optionally, the determining the target channel according to the sorting result includes:
according to the sorting result, sequentially checking the channels from high priority to low priority;
and determining the first channel passing the verification as a target channel.
Optionally, the determining the target channel according to the sorting result further includes:
if the verification result of each channel in the channels is not passed, determining the fault-free channel with the highest priority in the channels as the target channel; the non-failure channel is a channel whose failure state is non-failure.
Optionally, the verifying the channels sequentially includes:
judging whether the fault state of the channel is fault-free or not;
when the judgment result is yes, determining a comparison channel according to the characteristic information of the channel; the comparison channel is a channel which has no relevance with the channel and has no fault state;
acquiring a first current value acquired by the channel and a second current value acquired by any one of the comparison channels;
if the difference value between the first current value and the second current value acquired by any comparison channel is smaller than a preset value, the verification result is passed; otherwise, the verification result is not passed.
According to another aspect of the present invention, there is provided a current collecting apparatus of a vehicle, including:
the data acquisition module is used for acquiring characteristic information of all channels capable of acquiring current signals;
the level ordering module is used for ordering the priority of the channels according to the characteristic information;
the target determining module is used for determining a target channel according to the sequencing result;
and the signal output module is used for outputting the current signal acquired from the target channel.
According to another aspect of the present invention, there is provided a control apparatus including a memory, a processor, and a program stored on the memory and executable on the processor; the processor, when executing the program, implements the current collection method as described above.
According to another aspect of the present invention, there is provided an automobile comprising the current collecting device as described above.
The beneficial effects of the invention are as follows:
above-mentioned scheme, make full use of the inside and outside electric current information of BMS to fully verify electric current information, guaranteed the robustness of electric current signal collection effectively, configuration is convenient, and the change is swift, and the reliability is strong.
Drawings
FIG. 1 is a schematic diagram of a control method for current collection according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a current acquisition control device according to an embodiment of the present invention;
fig. 3 is a schematic flow chart of a current collection control method according to an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the drawings and the specific embodiments thereof in order to make the objects, technical solutions and advantages of the present invention more apparent.
The invention provides a current collection method and device for a vehicle, control equipment and an automobile, aiming at the problem that reliable current data cannot be collected when a current collection channel of a current collector fails or fails in the prior art.
As shown in fig. 1, one embodiment of the present invention provides a method for collecting current of a vehicle, including:
s11: and acquiring characteristic information of all channels capable of collecting current signals.
The channel through which the current signal can be collected may be determined according to the current state of the vehicle, for example, may be determined according to the current charge and discharge state of the vehicle. Specifically, when the vehicle is in a charging state, the signal channels of some controllers (such as the motor controller) are not used as channels capable of collecting current signals, i.e. according to the working state of the vehicle, some signal channels unsuitable for collecting current signals can be eliminated.
S12: according to the characteristic information, the channels are subjected to priority ranking;
s13: determining a target channel according to the sequencing result;
s14: and outputting a current signal acquired from the target channel.
It should be noted that, the current collection method provided by the embodiment of the invention can be applied to a single current sensor or a plurality of current sensors, and can also be used for diagnosis and verification by effectively utilizing the current collection value of an external system outside the BMS. Specifically, the relevant characteristic information of all channels capable of collecting the current signals can be obtained, the channels are prioritized by utilizing the characteristic information and checked one by one, the most suitable channel is selected from the characteristic information to serve as a target channel, and the current signals can be provided by the target channel for specific application. By the multi-channel current collection and verification mode, the effectiveness and reliability of system current collection and diagnosis are enhanced.
Optionally, the channels include a current collection channel of a current sensor arranged inside the battery management system BMS, and/or a signal channel of the BMS for obtaining a current signal through a controller area network CAN bus.
That is, the BMS may collect current signals by using multiple current sensors disposed in the BMS, and may further use currents of a motor Controller (Motor Control Unit, abbreviated as MCU), an ON-Board Controller (abbreviated as OBC), a ground charging pile (ON-Ground Controller, abbreviated as OGC), and other controllers as auxiliary applications according to the charge and discharge request, where it is noted that the current signals of the portion may be obtained through a CAN bus. Therefore, the current collection of an external system outside the BMS can be effectively utilized and can be used as diagnosis verification, so that the fusion application of the multi-current sensor and the current collection signal channel is realized, and the robustness of the system is effectively ensured.
Optionally, the characteristic information includes fault status, accuracy, reliability and relevance; wherein, the relevance is used for representing the relevance between the channels.
It should be noted that the precision and reliability may be obtained according to the current sensor and the acquisition loop hardware to which each channel belongs, the fault state is information about the self fault condition provided by the component self-inspection, and the association relationship refers to the correlation degree of the current signals acquired between the channels. For example, when two channels belong to the same current sensor, it is considered that there is an association relationship; or when two channels have the same power supply, the association relationship can be considered to exist. It will be appreciated that the association between the channels may be set according to the particular vehicle and is not limited to this example.
Optionally, the prioritizing the channels according to the feature information includes:
the channels are prioritized according to at least one of the accuracy and reliability.
It should be noted that, the step of prioritizing the channels according to the feature information may include: the channels are prioritized according to at least one of the accuracy and reliability. For example, when sorting by precision, it may be set that a channel with high precision has a high priority and a channel with low precision has a low priority; when the channel is sorted according to the reliability, the channel with high reliability can be set to have high priority and the channel with low reliability has low priority; when sorting according to precision and reliability, the precision and reliability can be respectively converted into dimensionless numerical values, weighted summation is carried out, sorting is carried out according to the magnitude of the sum value, and the like.
Optionally, the determining the target channel according to the sorting result includes:
according to the sorting result, sequentially checking the channels from high priority to low priority;
and determining the first channel passing the verification as a target channel.
It should be noted that, from high priority to low priority, the most suitable target channel can be obtained, and when one channel passes the verification, the verification is stopped. That is, the first channel that passes the verification may be determined as the target channel.
Optionally, the verifying the channels sequentially includes:
judging whether the fault state of the channel is fault-free or not;
when the judgment result is yes, determining a comparison channel according to the characteristic information of the channel; the comparison channel is a channel which has no relevance with the channel and has no fault state;
acquiring a first current value acquired by the channel and a second current value acquired by any one of the comparison channels;
if the difference value between the first current value and the second current value acquired by any comparison channel is smaller than a preset value, the verification result is passed; otherwise, the verification result is not passed.
That is, when checking a channel, firstly, judging the fault state of the channel; if the fault state of the channel is faulty, checking fails; if the fault state of the channel is no fault, other steps of checking the channel can be continued; according to the characteristic information of the channels, selecting a channel which has no relevance with the channel and has no fault state for verification, wherein one or more channels meeting the condition possibly exist, and if at least one of the channels can pass through the verification of the channel, the current value of the channel can be used for BMS application; if the channel of the next priority level can not pass the check, the channel of the next priority level is judged continuously.
Specifically, under the condition that the channels have no faults, further verification between the channels can be judged through acquisition errors, that is, comparison of current values acquired by the two channels can be utilized, if the difference value is within an error band (namely, the difference value is smaller than a preset value), the verification is considered to be passed, and otherwise, the verification is considered to be failed.
Optionally, the determining the target channel according to the sorting result further includes:
if the verification result of each channel in the channels is not passed, determining the fault-free channel with the highest priority in the channels as the target channel; the non-failure channel is a channel whose failure state is non-failure.
That is, assuming that n1 current collecting channels of the current sensor are provided inside the BMS, n2 independent channels capable of acquiring current information outside the BMS (i.e., n2 signal channels through which the BMS CAN acquire current signals through the controller area network CAN bus) are provided, a total of n1+n2 independent channels CAN collect and acquire current information.
If the n1+n2 channels are numbered, the current collection method can be expressed as (described below in the form of a program judgment flow) when applied:
if n1+n2= 1, then this indicates that there is only a unique channel, then this unique channel can be used;
if n1+n2> =2, the following steps are performed (as shown in fig. 3):
s301: starting;
s302: acquiring characteristic information of all channels capable of collecting current signals;
s303: the priority of all channels is ordered, the priority of the channels can be respectively expressed as P (0) and P (1) according to the order from high to low, P (n1+n2-1), and P (i) is used for expressing the priority of the channel to be judged currently;
s304: setting the channel to be checked first as the channel with the highest priority, namely the channel with the priority of P (0);
s305: verifying the channel with the priority of P (i);
s306: judging whether the verification is passed or not; if yes, then execution S307; if not, then S308 is performed;
s307: outputting a current signal acquired by the channel;
s308: judging whether all channels are verified, specifically, judging whether the priority P (i) of the current channel is smaller than the lowest priority P (n1+n2-1); if yes, then execution S309; if not, then S310 is executed;
s309: the serial number i representing the channel priority order is added with 1 to verify the channel of the next priority, that is, return to execution S305;
it should be noted that, after S308 is executed, if the determination result is no, it indicates that all channels have been verified, but no channel that can pass the verification is found. At this time, the current signal collected by the fault-free channel with the highest priority can be output; the non-fault channel refers to a channel with a fault state being non-fault.
That is, the next round of judgment is needed at this time, so as to find the channel with the first fault state being fault-free in all channels as the target channel according to the priority order, and the specific steps are as follows:
s310: firstly, setting a channel to be judged as a channel with the highest priority, namely a channel with the priority of P (0);
s311: judging whether a channel with the priority of P (i) has a fault or not; if yes, then execution S307; if not, then S312 is executed;
s312: judging whether all channels have undergone fault judgment, specifically, judging whether the priority P (i) of the current channel is smaller than the lowest priority P (n1+n2-1); if yes, then execute S313; if not, then S314 is executed;
s313: adding 1 to the serial number i representing the channel priority order to perform fault judgment on the channel with the next priority, namely returning to execute S311;
s314: and reporting channel fault information.
In the embodiment of the invention, the current information inside and outside the BMS is fully utilized, and the current information is fully checked, so that the robustness of current signal acquisition is effectively ensured, the configuration is convenient, the modification is quick, and the reliability is strong.
As shown in fig. 2, an embodiment of the present invention further provides a current collecting device for a vehicle, including:
the data acquisition module 21 is configured to acquire characteristic information of all channels in which the current signal can be acquired.
The channel through which the current signal can be collected may be determined according to the current state of the vehicle, for example, may be determined according to the current charge and discharge state of the vehicle. Specifically, when the vehicle is in a charging state, the signal channels of some controllers (such as the motor controller) are not used as channels capable of collecting current signals, i.e. according to the working state of the vehicle, some signal channels unsuitable for collecting current signals can be eliminated.
A level ranking module 22, configured to rank the channels according to the feature information;
a target determining module 23, configured to determine a target channel according to the sorting result;
and the signal output module 24 is used for outputting the current signal acquired from the target channel.
It should be noted that, the current collection device provided by the embodiment of the invention can be suitable for a single current sensor or a plurality of current sensors, and can also perform diagnosis and verification by effectively utilizing the current collection value of an external system outside the BMS. Specifically, the relevant characteristic information of all channels capable of collecting the current signals can be obtained, the channels are prioritized by utilizing the characteristic information and checked one by one, the most suitable channel is selected from the characteristic information to serve as a target channel, and the current signals can be provided by the target channel for specific application. By the multi-channel current collection and verification mode, the effectiveness and reliability of system current collection and diagnosis are enhanced.
Optionally, the channels include a current collection channel of a current sensor arranged inside the battery management system BMS, and/or a signal channel of the BMS for obtaining a current signal through a controller area network CAN bus.
That is, the BMS may collect current signals using a plurality of current sensors provided in the BMS, and may further use currents of the MCU, the OBC, the OGC, and other controllers as auxiliary applications according to the charge and discharge request, and it should be noted that the current signals of this portion may be obtained through the CAN bus. Therefore, the current collection of an external system outside the BMS can be effectively utilized and can be used as diagnosis verification, so that the fusion application of the multi-current sensor and the current collection signal channel is realized, and the robustness of the system is effectively ensured.
Optionally, the characteristic information includes fault status, accuracy, reliability and relevance; wherein, the relevance is used for representing the relevance between the channels.
It should be noted that the precision and reliability may be obtained according to the current sensor and the acquisition loop hardware to which each channel belongs, the fault state is information about the self fault condition provided by the component self-inspection, and the association relationship refers to the correlation degree of the current signals acquired between the channels. For example, when two channels belong to the same current sensor, it is considered that there is an association relationship; or when two channels have the same power supply, the association relationship can be considered to exist. It will be appreciated that the association between the channels may be set according to the particular vehicle and is not limited to this example.
Optionally, the level ordering module 22 includes:
and the judging unit is used for sequencing the channels according to at least one of the precision and the reliability.
It should be noted that, the step of prioritizing the channels according to the feature information may include: the channels are prioritized according to at least one of the accuracy and reliability. For example, when sorting by precision, it may be set that a channel with high precision has a high priority and a channel with low precision has a low priority; when the channel is sorted according to the reliability, the channel with high reliability can be set to have high priority and the channel with low reliability has low priority; when sorting according to precision and reliability, the precision and reliability can be respectively converted into dimensionless numerical values, weighted summation is carried out, sorting is carried out according to the magnitude of the sum value, and the like.
Optionally, the targeting module 23 includes:
the channel verification unit is used for verifying the channels in sequence from high priority to low priority according to the sequencing result;
and the first determining unit is used for determining the first channel passing the verification as a target channel.
Optionally, the targeting module 23 includes:
the second determining unit is used for determining a fault-free channel with highest priority in the channels as the target channel if the verification result of each channel in the channels is not passed; the non-failure channel is a channel whose failure state is non-failure.
It should be noted that, from high priority to low priority, the most suitable target channel can be obtained, and when one channel passes the verification, the verification is stopped. That is, the first channel that passes the verification may be determined as the target channel.
Optionally, the channel verification unit includes:
a fault judging subunit, configured to judge whether a fault state of the channel is fault-free;
the information processing subunit is used for determining a comparison channel according to the characteristic information of the channel when the judging result is yes; the comparison channel is a channel which has no relevance with the channel and has no fault state;
the data acquisition subunit is used for acquiring a first current value acquired by the channel and a second current value acquired by any contrast channel;
the data verification subunit is used for verifying that the result passes if the difference value between the first current value and the second current value acquired by any comparison channel is smaller than a preset value; otherwise, the verification result is not passed.
That is, when checking a channel, firstly, judging the fault state of the channel; if the fault state of the channel is faulty, checking fails; if the fault state of the channel is no fault, other steps of checking the channel can be continued; according to the characteristic information of the channels, selecting a channel which has no relevance with the channel and has no fault state for verification, wherein one or more channels meeting the condition possibly exist, and if at least one of the channels can pass through the verification of the channel, the current value of the channel can be used for BMS application; if the channel of the next priority level can not pass the check, the channel of the next priority level is judged continuously.
Specifically, under the condition that the channels have no faults, further verification between the channels can be judged through acquisition errors, that is, comparison of current values acquired by the two channels can be utilized, if the difference value is within an error band (namely, the difference value is smaller than a preset value), the verification is considered to be passed, and otherwise, the verification is considered to be failed.
In the embodiment of the invention, the current information inside and outside the BMS is fully utilized, and the current information is fully checked, so that the robustness of current signal acquisition is effectively ensured, the configuration is convenient, the modification is quick, and the reliability is strong.
The embodiment of the invention also provides a control device which comprises a memory, a processor and a program which is stored in the memory and can run on the processor; the processor, when executing the program, implements the current collection method as described above.
The embodiment of the invention also provides an automobile, which comprises the current acquisition device.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes are intended to be within the scope of the present invention.
Claims (8)
1. A method of current collection for a vehicle, comprising:
acquiring characteristic information of all channels capable of collecting current signals;
according to the characteristic information, the channels are subjected to priority ranking;
determining a target channel according to the sequencing result;
outputting a current signal acquired from the target channel;
wherein, the determining the target channel according to the sorting result includes:
according to the sorting result, sequentially checking the channels from high priority to low priority;
determining the first channel passing the verification as a target channel;
wherein, the verifying the channels in turn includes:
judging whether the fault state of the channel is fault-free or not;
when the judgment result is yes, determining a comparison channel according to the characteristic information of the channel; the comparison channel is a channel which has no relevance with the channel and has no fault state;
acquiring a first current value acquired by the channel and a second current value acquired by any one of the comparison channels;
if the difference value between the first current value and the second current value acquired by any comparison channel is smaller than a preset value, the verification result is passed; otherwise, the verification result is not passed.
2. The current collection method according to claim 1, wherein the channels include current collection channels of current sensors provided inside the battery management system BMS, and/or signal channels of the BMS for obtaining current signals through a controller area network CAN bus.
3. The current collection method according to claim 1, wherein the characteristic information includes fault status, accuracy, reliability and relevance; wherein, the relevance is used for representing the relevance between the channels.
4. A current collection method according to claim 3, wherein said prioritizing said channels according to said characteristic information comprises:
the channels are prioritized according to at least one of the accuracy and reliability.
5. The method of current collection according to claim 1, wherein determining the target channel according to the ranking result further comprises:
if the verification result of each channel in the channels is not passed, determining the fault-free channel with the highest priority in the channels as the target channel; the non-failure channel is a channel whose failure state is non-failure.
6. A current collecting device of a vehicle, characterized by comprising:
the data acquisition module is used for acquiring characteristic information of all channels capable of acquiring current signals;
the level ordering module is used for ordering the priority of the channels according to the characteristic information;
the target determining module is used for determining a target channel according to the sequencing result;
the signal output module is used for outputting a current signal acquired from the target channel;
wherein the targeting module comprises:
the channel verification unit is used for verifying the channels in sequence from high priority to low priority according to the sequencing result;
the first determining unit is used for determining the first channel passing the verification as a target channel;
wherein the channel verification unit includes:
a fault judging subunit, configured to judge whether a fault state of the channel is fault-free;
the information processing subunit is used for determining a comparison channel according to the characteristic information of the channel when the judging result is yes; the comparison channel is a channel which has no relevance with the channel and has no fault state;
the data acquisition subunit is used for acquiring a first current value acquired by the channel and a second current value acquired by any contrast channel;
the data verification subunit is used for verifying that the result passes if the difference value between the first current value and the second current value acquired by any comparison channel is smaller than a preset value; otherwise, the verification result is not passed.
7. A control device comprising a memory, a processor, and a program stored on the memory and executable on the processor; -wherein the processor, when executing the program, implements a current collection method according to any one of claims 1 to 5.
8. An automobile comprising the current collection device of claim 6.
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| CN202010794071.9A CN114074574B (en) | 2020-08-10 | 2020-08-10 | Vehicle current acquisition method and device, control equipment and automobile |
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| CN202010794071.9A CN114074574B (en) | 2020-08-10 | 2020-08-10 | Vehicle current acquisition method and device, control equipment and automobile |
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| CN103795494A (en) * | 2013-12-17 | 2014-05-14 | 烟台三航雷达服务技术研究所有限公司 | ADS-B (Automatic Dependent Surveillance Broadcast) multi-channel receiving decoding processing method |
| CN104483011A (en) * | 2014-11-07 | 2015-04-01 | 南京理工大学紫金学院 | Rotary machinery multichannel vibration signal on-line detection and analysis system and method |
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| CN103795494A (en) * | 2013-12-17 | 2014-05-14 | 烟台三航雷达服务技术研究所有限公司 | ADS-B (Automatic Dependent Surveillance Broadcast) multi-channel receiving decoding processing method |
| CN104483011A (en) * | 2014-11-07 | 2015-04-01 | 南京理工大学紫金学院 | Rotary machinery multichannel vibration signal on-line detection and analysis system and method |
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