CN109188182A - Electrokinetic cell system high pressure electrical connection fault detection method, device and electric car - Google Patents
Electrokinetic cell system high pressure electrical connection fault detection method, device and electric car Download PDFInfo
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- CN109188182A CN109188182A CN201811068667.XA CN201811068667A CN109188182A CN 109188182 A CN109188182 A CN 109188182A CN 201811068667 A CN201811068667 A CN 201811068667A CN 109188182 A CN109188182 A CN 109188182A
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- Prior art keywords
- high pressure
- cell system
- electrokinetic cell
- electrical connection
- pressure electrical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
Abstract
The present invention provides a kind of electrokinetic cell system high pressure electrical connection fault detection method, device and electric car, it is related to high-pressure system technical field, which comprises the voltage difference in monitoring electrokinetic cell system between each high pressure electric connecting part of the two neighboring battery modules of connection and the tie point of two battery modules connections；Determining electrokinetic cell system currently according to voltage difference whether there is high pressure electrical connection fault；When determining that electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.The present invention, which realizes the high pressure electric connecting part in electrokinetic cell system, to be occurred after connecting not firm situation, and fault pre-alarming information is exported, and avoids electrokinetic cell system from nonserviceabling lower carry out charge and discharge, battery consistency deterioration occurs, improve battery security；Electric car is avoided to travel in high pressure electric connecting part malfunction, the fracture of high pressure electric connecting part leads to electricity under high pressure and stops suddenly, improves safety by bus.
Description
Technical field
The invention belongs to high-pressure system technical fields, examine more particularly, to a kind of electrokinetic cell system high pressure electrical connection fault
Survey method, apparatus and electric car.
Background technique
In electric car, in order to meet the needs of voltage, electricity, power, Vehicular dynamic battery system is often by more
A battery modules connect to form a high-pressure system, pass through welding, bolt often through conductive components such as copper bar, aluminium rows between mould group
The modes such as fixed carry out high pressure connection.
Vehicle is after the test such as longtime running or the vibration of electrokinetic cell system experience, mechanical shock, electrokinetic cell system
High pressure electric connecting part between internal model group is it is possible that loosening, virtual connection etc. connect not firm problem.Do not occur in connecting component
In the case where thoroughly disconnecting (fracture, desoldering, bolt falling), the output voltage of electrokinetic cell system is normal, battery management system
System will not monitoring problem and reporting fault.If high pressure electric connecting part occurs connecting not firm situation, it is likely to result in: battery
The problem of consistency difference of the monomer in charge and discharge process；High pressure electric connecting part contact resistance increase, electrokinetic cell system into
It will appear hot-spot phenomenon during row high current charge-discharge, influence cell safety；Electrokinetic cell system in use,
May occur chance failure problem because of virtual connection problem, be unfavorable for malfunction elimination and diagnosis；In driving conditions, if high pressure
Conductive component connects the case where not firm problem deterioration will appear the fracture of high pressure electric connecting part, and electrokinetic cell system is caused to export
Electric voltage exception, in this way, battery management system meeting reporting fault, vehicle broken height pressure causes driving conditions to stop in emergency, abnormally dangerous.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of electrokinetic cell system high pressure electrical connection fault detection method, device
And electric car, it is electrically connected timely early warning when defect to realize and occur high pressure in electrokinetic cell system, reminds user.
To achieve the goals above, the present invention provides a kind of electrokinetic cell system high pressure electrical connection fault detection method,
Include:
It monitors described in each high pressure electric connecting part for connecting two neighboring battery modules in electrokinetic cell system and two
Voltage difference between the tie point of battery modules connection；
Determining the electrokinetic cell system currently according to the voltage difference whether there is high pressure electrical connection fault；
When determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.
Wherein, determining the electrokinetic cell system currently according to the voltage difference whether there is the step of high pressure electrical connection fault
Suddenly include:
The mapping table of high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference determines each high pressure
It is poor whether the voltage difference of electric connecting part is greater than predeterminated voltage corresponding with the high pressure electric connecting part；
If the voltage difference of any high pressure electric connecting part is greater than corresponding pre- with the high pressure electric connecting part
If voltage difference, and monitor that the voltage difference reaches preset duration greater than the duration of the predeterminated voltage difference, it is determined that institute
Stating electrokinetic cell system, there is currently high pressure electrical connection faults.
Wherein, the method also includes:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at charging mould
Formula then controls the electric car and stops charging.
Wherein, the method also includes:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at driving mould
Formula adjusts the power battery then according to the current output power of power battery and the pre-stored power adjustment table of comparisons
Output power, and the electric car is forbidden to carry out energy regenerating.
Wherein, the method also includes:
When determining the electrokinetic cell system there are high pressure electrical connection fault and the electric car is currently at driving mould
When formula, if receiving acceleration request signal, controls the electric car and be not responding to the acceleration request signal；Subtract if receiving
Fast request signal then controls the electric car and forbids energy regenerating.
Wherein, when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports the step of fault pre-alarming information
Suddenly include:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, to instrument controller output fault pre-alarming letter
Breath makes the instrument controller show fault message and/or output early warning sound.
The embodiment of the present invention also provides a kind of electrokinetic cell system high pressure electrical connection fault detection device, comprising:
Monitoring modular, for monitoring each high pressure electrical connection section for connecting two neighboring battery modules in electrokinetic cell system
Voltage difference between part and the tie point of two battery modules connections；
Determining module whether there is high pressure electrical connection for determining the electrokinetic cell system currently according to the voltage difference
Failure；
Output module, for when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming
Information.
Wherein, the determining module includes:
First determines submodule, the corresponding relationship for high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference
It is corresponding pre- with the high pressure electric connecting part to determine whether the voltage difference of each high pressure electric connecting part is greater than for table
If voltage difference；
Second determines submodule, if the voltage difference for any high pressure electric connecting part is greater than and the high pressure
The corresponding predeterminated voltage of electric connecting part is poor, and monitors that the voltage difference reaches greater than the duration of the predeterminated voltage difference
Preset duration, it is determined that there is currently high pressure electrical connection faults for the electrokinetic cell system.
Wherein, described device further include:
First control module, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electronic vapour
Vehicle is currently at charge mode, then controls the electric car and stop charging.
Wherein, described device further include:
Module is adjusted, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is worked as
It is preceding to be in drive mode, then according to the current output power of power battery and the pre-stored power adjustment table of comparisons, adjust institute
State the output power of power battery.
Wherein, described device further include:
Second control module, for there are high pressure electrical connection fault and the electronic vapour when determining the electrokinetic cell system
When vehicle is currently at drive mode, if receiving acceleration request signal, controls the electric car and be not responding to the acceleration and ask
Seek signal；If receiving deceleration request signal, controls the electric car and forbid energy regenerating.
Wherein, the output module is specifically used for, when determine the electrokinetic cell system there are when high pressure electrical connection fault,
Fault pre-alarming information is exported to instrument controller, the instrument controller is made to show fault message and/or output early warning sound.
The embodiment of the present invention also provides a kind of electric car, including electrokinetic cell system high pressure as described above electrical connection event
Hinder detection device.
The embodiment of the present invention also provides a kind of electric car, comprising: processor, memory and is stored on the memory
And the computer program that can be run on the processor, the computer program realize institute as above when being executed by the processor
The step of electrokinetic cell system high pressure electrical connection fault detection method stated.
The embodiment of the present invention also provides a kind of computer readable storage medium, wherein the computer readable storage medium
On be stored with computer program, the computer program realizes electrokinetic cell system high pressure as described above when being executed by processor
The step of electrical connection fault detection method.
Above-mentioned technical proposal of the invention at least has the following beneficial effects:
The present invention in the electrokinetic cell system by connecting each electric high pressure interconnecting pieces of two neighboring battery modules
Voltage acquisition line is arranged on part, to acquire the connection that each high pressure electric connecting part is connect with two battery modules
Voltage difference between point determines whether the high pressure electric connecting part itself defective or the high-voltage electricity according to the voltage difference
Whether the connection of connecting component and battery modules is defective.Realizing can detect before the high pressure electric connecting part thoroughly disconnects
It is out of order, reminds the user that, avoid the occurrence of causes the power battery consistent since the connection of power battery interior high pressure is abnormal
Property deteriorate and the safety problems such as the electric car emergency braking.
Detailed description of the invention
Fig. 1 is the basic step signal of the electrokinetic cell system high pressure electrical connection fault detection method of the embodiment of the present invention
Figure；
Fig. 2 is the basic composition signal of the electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention
Figure；
Fig. 3 is the signal that battery modules are connected by high pressure electric connecting part in the electrokinetic cell system of the embodiment of the present invention
Figure.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The embodiment of the present invention is for vehicle in the prior art in longtime running or the vibration of electrokinetic cell system experience, mechanical punching
After the test such as hitting, the high pressure electric connecting part between battery system internal model group occur loosening or virtual connection after, can not monitor and mention in time
Wake up user the problem of, a kind of electrokinetic cell system high pressure electrical connection fault detection method, device and electric car are provided, realized
It is defeated to user immediately when occurring loosening or virtual connection between the real-time detection of the high pressure electric connecting part battery system internal model group
Be out of order warning information, ensure that the consistency of power battery, and improves the safety concerns of user.
Firstly, it is necessary to illustrate, the power battery 100 in the electrokinetic cell system of the embodiment of the present invention, such as Fig. 3 institute
Show, including multiple battery modules 1 and multiple high pressure electric connecting parts 2, wherein each described battery modules 1 is by least
One high pressure electric connecting part 2 is electrically connected with the adjacent battery modules 1.In order to realize to electrokinetic cell system high pressure
The detection of electrical connection fault needs to arrange voltage acquisition line on each high pressure electric connecting part 2, is used for real-time detection
The voltage at 2 both ends of high pressure electric connecting part, wherein the both ends of the high pressure electric connecting part 2 refer to that the high pressure is electrically connected
The end that relay part 2 is connect with the battery modules 1 respectively.Specifically, two contacts of the voltage acquisition line and described being electrically connected
The tie point that relay part 2 is connect with two battery modules 1 connects one to one, to realize high-voltage electricity described in real-time monitoring
The voltage difference between tie point that connecting component 2 and two battery modules 1 connect.
As shown in Figure 1, the embodiment provides a kind of electrokinetic cell system high pressure electrical connection fault detection method,
Include:
Step 11, each high pressure electric connecting part and two of two neighboring battery modules is connected in monitoring electrokinetic cell system
Voltage difference between the tie point of a battery modules connection.
Wherein, the monitoring voltage in the present embodiment can for periodically monitoring, it is preferred that monitoring cycle be generally less than or
Equal to 20ms, alternatively, monitoring cycle can be identical as the detection cycle of battery cell voltage.
Step 12, determining the electrokinetic cell system currently according to the voltage difference whether there is high pressure electrical connection fault.
It should be noted that the embodiment of the present invention is not limited to according to the high pressure electric connecting part and two batteries
Voltage difference between the tie point of mould group connection determines that the electrokinetic cell system, can be with the presence or absence of high pressure electrical connection fault
By way of directly monitoring the resistance of the high pressure electric connecting part or whether other modes determine the electrokinetic cell system
There are high pressure electrical connection faults.
Step 13, when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.
The embodiment of the present invention in battery management system by increasing to the high pressure electric connecting part of the power battery
The monitoring of resistance or the voltage at both ends and fault reporting function, to effectively prevent and monitor in the electrokinetic cell system
High pressure connection reliability is conducive to trouble-saving, monitoring and diagnosis, vehicle is avoided in normal driving process, due to described
The fracture of high pressure electric connecting part causes to stop suddenly, causes danger.
Specifically, step 12, which determines the electrokinetic cell system currently according to the voltage difference, whether there is high pressure electrical connection
The step of failure includes:
The mapping table of high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference determines each high pressure
It is poor whether the voltage difference of electric connecting part is greater than predeterminated voltage corresponding with the high pressure electric connecting part.
If the voltage difference of any high pressure electric connecting part is greater than corresponding pre- with the high pressure electric connecting part
If voltage difference, and monitor that the voltage difference reaches preset duration greater than the duration of the predeterminated voltage difference, it is determined that institute
Stating electrokinetic cell system, there is currently high pressure electrical connection faults.
In the present embodiment, the mapping table of the high pressure electric connecting part and predeterminated voltage difference is according to the high-voltage electricity
The material of connecting component, size, position and many experiments of the high pressure electric connecting part in the electrokinetic cell system
What data determined.
Specifically, fault misdescription, the embodiment of the present invention are not detecting the high pressure electric connecting part in order to prevent
Just reporting fault immediately when voltage difference is greater than predeterminated voltage difference corresponding with the high pressure electric connecting part, but monitoring
It states after voltage difference reaches preset duration greater than the duration of the predeterminated voltage difference, just the determination electrokinetic cell system is current
There are high pressure electrical connection faults, to improve the accuracy of fault detection.
Specifically, step 13, when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming
The step of information includes:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, to instrument controller output fault pre-alarming letter
Breath makes the instrument controller show fault message and/or output early warning sound.
The battery management system and instrument controller of the embodiment of the present invention pass through controller LAN (Controller
Area Network, referred to as: CAN) bus connection, realize the interaction of information, the battery management system is when the determining power
Battery system is then sent by CAN bus to the instrument controller high comprising power battery there are when high pressure electrical connection fault
The CAN message information of piezoelectricity connecting fault makes the instrument controller according to the CAN message information in the electric car
Power battery fault message is shown on instrument desk, and/or, so that the sound attention device of the electric car is exported early warning sound,
It reminds the user that, current electric car has exception, handles in time convenient for user.
Hereinafter, further illustrating, for the operating mode that the electric car is presently in the electrokinetic cell system
There are when high pressure electrical connection fault, the further operating of the electric car.
Specifically, when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at
Charge mode then controls the electric car and stops charging.To avoid due to high pressure electric connecting part loosening or virtual connection,
The high pressure electric connecting part contact resistance is caused to increase, electrokinetic cell system carries out part occur during high current charge-discharge
Superheating phenomenon influences cell safety；Also it avoids battery cell from there is a problem of consistency difference in charge and discharge process, influences described
The service life of electrokinetic cell system.
Specifically, on the one hand, when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is worked as
It is preceding to be in drive mode, then according to the current output power of power battery and the pre-stored power adjustment table of comparisons, adjust institute
State the output power of power battery.
The embodiment of the present invention, the electrokinetic cell system passes through tune there are when high pressure electrical connection fault when driving
The output power of the whole power battery, realizes the adjustment of the motor output torque of the electric car, to reduce speed.Its
In, the output power of the power battery is adjusted specifically, reducing the output power of the power battery；The power adjustment pair
Be the relation table for the output power that the gradient determined according to lot of experimental data reduces the power battery according to table, it is final realize by
The speed for gradually reducing the electric car avoids stopping or rapidly slowing down suddenly causing the experience by bus of user poor.
On the other hand, when determining the electrokinetic cell system there are high pressure electrical connection fault and the electric car is currently located
When drive mode, if receiving acceleration request signal, controls the electric car and be not responding to the acceleration request signal；If
Deceleration request signal is received, then controls the electric car and forbids energy regenerating.
The embodiment of the present invention is determining the electric car in the process of moving, and there are high pressures for the electrokinetic cell system
After electrical connection fault, leads to the power battery hot-spot in order to avoid the power battery exports or input high current, make
The power battery and the electric car there are security risks, even if the electric car receives the acceleration request of user
Signal, the electric car are also not responding to the acceleration request signal and are accelerated；Even if receiving the deceleration request letter of user
Number, the electric car is also without energy regenerating.
The embodiment of the present invention is by monitoring high pressure electric connecting part and two battery modules in the electrokinetic cell system
Voltage difference between the tie point of connection, determine the high pressure electric connecting part currently whether occur loosening or the connections such as virtual connection not
Real state, thus determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information in time,
Avoid the electric car from nonserviceabling lower long-time traveling, improve the electric car safety and user by bus
Comfort.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program (instruction),
The program (instruction) performs the steps of when being executed by processor
It monitors described in each high pressure electric connecting part for connecting two neighboring battery modules in electrokinetic cell system and two
Voltage difference between the tie point of battery modules connection；Determine whether the electrokinetic cell system is currently deposited according to the voltage difference
In high pressure electrical connection fault；When determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.
Optionally, following steps be can also be achieved when which is executed by processor:
The mapping table of high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference determines each high pressure
It is poor whether the voltage difference of electric connecting part is greater than predeterminated voltage corresponding with the high pressure electric connecting part；If any described
It is poor that the voltage difference of high pressure electric connecting part is greater than predeterminated voltage corresponding with the high pressure electric connecting part, and monitors institute
The duration that voltage difference is stated greater than the predeterminated voltage difference reaches preset duration, it is determined that the electrokinetic cell system is currently deposited
In high pressure electrical connection fault.
Optionally, following steps be can also be achieved when which is executed by processor:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at charging mould
Formula then controls the electric car and stops charging.
Optionally, following steps be can also be achieved when which is executed by processor:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at driving mould
Formula adjusts the power battery then according to the current output power of power battery and the pre-stored power adjustment table of comparisons
Output power.
Optionally, following steps be can also be achieved when which is executed by processor:
When determining the electrokinetic cell system there are high pressure electrical connection fault and the electric car is currently at driving mould
When formula, if receiving acceleration request signal, controls the electric car and be not responding to the acceleration request signal；Subtract if receiving
Fast request signal then controls the electric car and forbids energy regenerating.
Optionally, following steps be can also be achieved when which is executed by processor:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, to instrument controller output fault pre-alarming letter
Breath makes the instrument controller show fault message and/or output early warning sound.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
As shown in Fig. 2, the embodiments of the present invention also provide a kind of detections of electrokinetic cell system high pressure electrical connection fault to fill
It sets, comprising:
Monitoring modular 21, for monitoring each high pressure electrical connection for connecting two neighboring battery modules in electrokinetic cell system
Voltage difference between component and the tie point of two battery modules connections；
Determining module 22, for determining that the electrokinetic cell system is currently electrically connected with the presence or absence of high pressure according to the voltage difference
Connect failure；
Output module 23, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, output failure to be pre-
Alert information.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, the determining module 22 include:
First determines submodule, the corresponding relationship for high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference
It is corresponding pre- with the high pressure electric connecting part to determine whether the voltage difference of each high pressure electric connecting part is greater than for table
If voltage difference；
Second determines submodule, if the voltage difference for any high pressure electric connecting part is greater than and the high pressure
The corresponding predeterminated voltage of electric connecting part is poor, and monitors that the voltage difference reaches greater than the duration of the predeterminated voltage difference
Preset duration, it is determined that there is currently high pressure electrical connection faults for the electrokinetic cell system.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, further includes:
First control module, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electronic vapour
Vehicle is currently at charge mode, then controls the electric car and stop charging.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, further includes:
Module is adjusted, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is worked as
It is preceding to be in drive mode, then according to the current output power of power battery and the pre-stored power adjustment table of comparisons, adjust institute
State the output power of power battery.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, further includes:
Second control module, for there are high pressure electrical connection fault and the electronic vapour when determining the electrokinetic cell system
When vehicle is currently at drive mode, if receiving acceleration request signal, controls the electric car and be not responding to the acceleration and ask
Seek signal；If receiving deceleration request signal, controls the electric car and forbid energy regenerating.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, the output module 23 are specifically used
In exporting fault pre-alarming information to instrument controller, make when determining the electrokinetic cell system there are when high pressure electrical connection fault
The instrument controller shows fault message and/or output early warning sound.
The electrokinetic cell system high pressure electrical connection fault detection device of the embodiment of the present invention, according to the two neighboring battery of connection
Voltage difference between each high pressure electric connecting part of mould group and the tie point of two battery modules connections determines described dynamic
Power battery system currently whether there is high pressure electrical connection fault, and if it exists, and fault pre-alarming information is then exported, is reminded the user that,
Avoiding the high pressure electric connecting part from being thoroughly broken leads to electricity under high pressure, so that the electric car stops in emergency, causes traffic
Accident.
The embodiment of the present invention also provides a kind of electric car, is electrically connected including electrokinetic cell system high pressure as described above
Fault detection means.
The embodiment of the present invention also provides a kind of electric car, comprising: processor, memory and is stored on the memory
And the computer program that can be run on the processor, it realizes when the computer program is executed by the processor as above-mentioned
Each process of electrokinetic cell system high pressure electrical connection fault detection method embodiment, and identical technical effect can be reached, it is
It avoids repeating, which is not described herein again.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (15)
1. a kind of electrokinetic cell system high pressure electrical connection fault detection method characterized by comprising
Monitor each high pressure electric connecting part and two batteries of the two neighboring battery modules of connection in electrokinetic cell system
Voltage difference between the tie point of mould group connection；
Determining the electrokinetic cell system currently according to the voltage difference whether there is high pressure electrical connection fault；
When determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.
2. electrokinetic cell system high pressure electrical connection fault detection method according to claim 1, which is characterized in that according to institute
It states voltage difference and determines the electrokinetic cell system currently and include: the step of whether there is high pressure electrical connection fault
The mapping table of high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference determines that each high pressure is electrically connected
It is poor whether the voltage difference of relay part is greater than predeterminated voltage corresponding with the high pressure electric connecting part；
If the voltage difference of any high pressure electric connecting part is greater than default electricity corresponding with the high pressure electric connecting part
Pressure difference, and monitor that the voltage difference reaches preset duration greater than the duration of the predeterminated voltage difference, it is determined that it is described dynamic
There is currently high pressure electrical connection faults for power battery system.
3. electrokinetic cell system high pressure electrical connection fault detection method according to claim 1, which is characterized in that the side
Method further include:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at charge mode,
It controls the electric car and stops charging.
4. electrokinetic cell system high pressure electrical connection fault detection method according to claim 1, which is characterized in that the side
Method further include:
When determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently at drive mode,
According to the current output power of power battery and the pre-stored power adjustment table of comparisons, the output work of the power battery is adjusted
Rate.
5. electrokinetic cell system high pressure electrical connection fault detection method according to claim 4, which is characterized in that the side
Method further include:
When determine the electrokinetic cell system there are high pressure electrical connection fault and when the electric car is currently at drive mode,
If receiving acceleration request signal, controls the electric car and be not responding to the acceleration request signal；If receiving deceleration to ask
Signal is sought, then controls the electric car and forbids energy regenerating.
6. electrokinetic cell system high pressure electrical connection fault detection method according to claim 1, which is characterized in that work as determination
There are include: the step of when high pressure electrical connection fault, exporting fault pre-alarming information for the electrokinetic cell system
When determining the electrokinetic cell system there are when high pressure electrical connection fault, fault pre-alarming information is exported to instrument controller,
The instrument controller is set to show fault message and/or output early warning sound.
7. a kind of electrokinetic cell system high pressure electrical connection fault detection device characterized by comprising
Monitoring modular, for monitor connected in electrokinetic cell system each high pressure electric connecting parts of two neighboring battery modules with
Voltage difference between the tie point of two battery modules connections；
Determining module whether there is high pressure electrical connection event for determining the electrokinetic cell system currently according to the voltage difference
Barrier；
Output module, for when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports fault pre-alarming information.
8. electrokinetic cell system high pressure electrical connection fault detection device according to claim 7, which is characterized in that described true
Cover half block includes:
First determines submodule, for the mapping table of high pressure electric connecting part according to the pre-stored data and predeterminated voltage difference,
It is corresponding with the high pressure electric connecting part default to determine whether the voltage difference of each high pressure electric connecting part is greater than
Voltage difference；
Second determines submodule, is electrically connected if the voltage difference for any high pressure electric connecting part is greater than with the high pressure
The corresponding predeterminated voltage of relay part is poor, and monitors that the voltage difference reaches default greater than the duration of the predeterminated voltage difference
Duration, it is determined that there is currently high pressure electrical connection faults for the electrokinetic cell system.
9. electrokinetic cell system high pressure electrical connection fault detection device according to claim 7, which is characterized in that the dress
It sets further include:
First control module, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is worked as
It is preceding to be in charge mode, then it controls the electric car and stops charging.
10. electrokinetic cell system high pressure electrical connection fault detection device according to claim 7, which is characterized in that described
Device further include:
Module is adjusted, for when determining the electrokinetic cell system there are when high pressure electrical connection fault, if electric car is currently located
In drive mode, then according to the current output power of power battery and the pre-stored power adjustment table of comparisons, adjust described dynamic
The output power of power battery.
11. electrokinetic cell system high pressure electrical connection fault detection device according to claim 10, which is characterized in that described
Device further include:
Second control module, for electrokinetic cell system to be there are high pressure electrical connection fault and the electric car is worked as when determination is described
It is preceding when being in drive mode, if receiving acceleration request signal, controls the electric car and be not responding to acceleration request letter
Number；If receiving deceleration request signal, controls the electric car and forbid energy regenerating.
12. electrokinetic cell system high pressure electrical connection fault detection device according to claim 7, which is characterized in that described
Output module is specifically used for, when determining that the electrokinetic cell system there are when high pressure electrical connection fault, exports to instrument controller
Fault pre-alarming information makes the instrument controller show fault message and/or output early warning sound.
13. a kind of electric car, which is characterized in that including the described in any item electrokinetic cell system high pressures of such as claim 7-12
Electrical connection fault detection device.
14. a kind of electric car, comprising: processor, memory and be stored on the memory and can be on the processor
The computer program of operation is realized when the computer program is executed by the processor such as any one of claims 1 to 6 institute
The step of electrokinetic cell system high pressure electrical connection fault detection method stated.
15. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes such as electrokinetic cell system described in any one of claims 1 to 6 when the computer program is executed by processor
The step of high pressure electrical connection fault detection method.
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Application publication date: 20190111 |