CN109968980A - A kind of high-voltage interlocking detection system - Google Patents
A kind of high-voltage interlocking detection system Download PDFInfo
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- CN109968980A CN109968980A CN201711434328.4A CN201711434328A CN109968980A CN 109968980 A CN109968980 A CN 109968980A CN 201711434328 A CN201711434328 A CN 201711434328A CN 109968980 A CN109968980 A CN 109968980A
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- connector
- interlocking
- voltage interlocking
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- measure loop
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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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention relates to a kind of high-voltage interlocking detection systems, including control detection unit and the first high-voltage interlocking measure loop being connect with control detection unit, whether the first high-voltage interlocking measure loop connect normal for detecting electrical connector with high voltage distribution box, and the first high-voltage interlocking measure loop includes for interlocking contact corresponding with electrical connector；The electrical connector connects coad connector by cable；Load interlocking contact corresponding with coad connector, each control device and control detection unit communication connection in corresponding control device sampling connection load.The system can power in vehicle, will work or in running order high-voltage interlocking connector detects under Vehicular charging or vehicle running state to each, it can accurately judge that the plug-in unit of some components is not plugged, so as to which according to testing result, when vehicle breaks down, convenient make in time handles logic or prompt accordingly.
Description
Technical field
The invention belongs to electric automobile safety control technology fields, and in particular to a kind of high-voltage interlocking detection system.
Background technique
With the rapid development of economy, the energy and environmental issue become increasingly conspicuous, visual field various countries start to have turned one's attention to section
The electric car of energy environmental protection.
Compared with conventional truck, electric car increases the high pressures such as motor, electric machine controller, DC/DC, high-tension battery packet use
Electric equipment or power supply unit.Therefore, the high-voltage electricity injury hidden danger of electric car is different from traditional vehicle completely, is up to 300V
It above voltage and is likely to be breached tens of or even hundreds of amperes of electric current and may influence the safe handling of electric car at any time, therefore
The security protection of vehicle high-pressure system is very important.
In order to improve the safety of electric car, existing electric car mostly uses high-voltage interlocking scheme.Pass through low-voltage signal
Detect the integrality and continuity in entire high-pressure system circuit, identify in circuit it is abnormal disconnect, avoid the high pressure from connecting plug-in unit
The phenomenon that electric arc is generated in interrupting process occurs.
The Chinese patent that authorization publication No. is CN205417198U discloses a kind of hybrid vehicle high-voltage interlocking control
Circuit.The circuit includes hybrid power control unit module, and hybrid power control unit module output port successively connects with high pressure
Connect device, lithium battery control module, hybrid power control unit module input mouth and the connection of high-voltage interlocking signal evaluation module
At high-voltage interlocking signal circuit loop.
The control circuit is detected and is made when breaking down to vehicle by controlling high-tension circuit power-on and power-off
Significant response.But the high-voltage interlocking scheme of existing electric car is mainly examined to whether each high voltage power supply plug-in unit is seated
It surveys, perhaps the plug-in unit interlocking of battery pack is detected or concatenated all plug-in units is detected, and can not detect certain
A components high voltage power supply plug-in unit is not plugged.
Summary of the invention
The purpose of the present invention is to provide a kind of high-voltage interlocking detection systems, to solve high-voltage interlocking in the prior art
Detection system can not detect the problem of some components high voltage power supply plug-in unit is not plugged.
In order to solve the above technical problems, the technical solution of the present invention is as follows:
The present invention provides a kind of high-voltage interlocking detection systems, including following system schema:
System schema one detects back including control detection unit and the first high-voltage interlocking connecting with control detection unit
Road, the first high-voltage interlocking measure loop for detect electrical connector connect with high voltage distribution box it is whether normal, described the
One high-voltage interlocking measure loop includes for interlocking contact corresponding with electrical connector；The electrical connector is connected by cable
Connect coad connector；
Load interlocking contact corresponding with coad connector in corresponding control device sampling connection load, each control device
With control detection unit communication connection.
System schema two, on the basis of system schema one, load includes in charger, DC/DC and electric machine controller
At least one；Coad connector includes at least one in charger connector, DC/DC connector and electric machine controller connector
It is a.
System schema three, on the basis of system schema one or system schema two, control detection unit is also connected with second
High-voltage interlocking measure loop, the second high-voltage interlocking measure loop for detect battery packet gateway connect with battery pack whether
Normally, the second high-voltage interlocking measure loop includes for interlocking contact corresponding with battery packet gateway.
System schema four, on the basis of system schema three, the second high-voltage interlocking measure loop further include for
The corresponding interlocking contact of service switch connector, service switch are located in battery pack.
System schema five, on the basis of system schema three, the battery packet gateway includes battery pack positive connector
With battery pack cathode connector.
System schema six, on the basis of system schema three, the battery packet gateway connects high pressure by cable and connects
Device, the first high-voltage interlocking measure loop further include for interlocking contact corresponding with the high-tension connector.
Beneficial effects of the present invention:
High-voltage interlocking detection system of the invention corresponds to load on the basis of traditional high-voltage interlocking measure loop
Control device sampling connection load in interlocking contact corresponding with coad connector, and the result that will test passes through communication line
Pass to control detection unit.The system can power in vehicle, under Vehicular charging or vehicle running state to each i.e. by work
Make or in running order each coad connector and corresponding load connect whether be normally carried out detection, so as to accurate
Judge that the plug-in unit of some components is not plugged, and then according to testing result, and the current operating condition of vehicle can be combined, is sent out in vehicle
It is convenient when raw failure to make corresponding processing logic or prompt in time, the whole reliability of vehicle safety detection is improved, is guaranteed
The safety of the safety of vehicle, the safety of driver and passenger and running environment.
Detailed description of the invention
Fig. 1 is vehicle high-voltage power supply circuit；
Fig. 2 is high-voltage interlocking detection system circuit diagram of the invention；
Fig. 3 is interlock fault overhaul flow chart in power up；
Fig. 4 is interlock fault overhaul flow chart in charging wakeup process；
Fig. 5 is that Vehicular charging judges interlock fault process flow diagram occur in the process；
Fig. 6 is interlock fault overhaul flow chart in vehicle travel process.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, to the present invention
It is described in further detail.
Each connector is correspondingly connected with, conventional vehicles high-voltage power supply circuit figure as shown in Figure 1 is constituted.
Wherein, battery pack coad connector includes battery pack positive connector S2 and battery pack cathode connector S3.Battery
It wraps anode coad connector S2 and high-voltage positive electrode connector S11 is connected by cable, battery pack cathode connector S3 is connected by cable
Meet high voltage negative connector S12.
Coad connector includes charger connector S7, DC/DC connector S8, electric machine controller connector S9, is led to respectively
Cross cable connection the first electrical connector S4, the second electrical connector S5, third electrical connector S6.
Connection finishes, and charger can be realized and power to battery pack charging or battery pack to DC/DC and electric machine controller.
In order to improve the safety of vehicle, high-voltage interlocking detection circuit is increased on the basis of Fig. 1, is formd such as Fig. 2
Shown in high-voltage interlocking detection system.
The system includes controlling detection unit and two high-voltage interlocking measure loops connecting with control detection unit, and two
High-voltage interlocking measure loop is shown as dotted line in Fig. 2.
Wherein a high-voltage interlocking measure loop is battery pack measure loop, for detecting battery packet gateway and battery pack
It whether normal connects.It is provided in the circuit for interlocking contact corresponding with battery pack positive connector S2, is used for and battery
The corresponding interlocking contact of packet cathode connector S3 is used for interlocking contact corresponding with service switch connector S1.Wherein, maintenance is opened
Off-position is in battery pack.
Another high-voltage interlocking measure loop is high voltage distribution box measure loop, is matched for detecting electrical connector with high pressure
Whether electric box connection is normal.It is provided in the circuit for interlocking contact corresponding with high-voltage positive electrode connector S11, is used for and height
The corresponding interlocking contact of cathode connector S12 is pressed, interlocking contact corresponding with the first electrical connector S4 is used for, is used for and second
The corresponding interlocking contact of electrical connector S5, the corresponding interlocking contact of third electrical connector S6.
The working principle of this two high-voltage interlocking measure loops are as follows:
Control detection unit sends pulse modulation voltage signal and gives this two high-voltage interlocking measure loops, and receives pulse tune
Voltage signal processed.The voltage of the pulse-modulated signal sent and received is compared, whether to judge two high-voltage interlocking measure loops
It is complete: if what is sent is inconsistent with the voltage of received pulse-modulated signal, to illustrate there is part connector not to be seated.
In addition, each load interlocking contact corresponding with coad connector in corresponding control device sampling connection load,
That is charger control device sampling connection is in charger, interlocking contact corresponding with charger connector, DC/DC control dress
Sampling connection is set in DC/DC, interlocking contact corresponding with DC/DC connector, the sampling connection of electric machine controller control device
In electric machine controller, interlocking contact corresponding with electric machine controller.Meanwhile charger control device, DC/DC control dress
Set, electric machine controller connector and control detection unit communication connection.
Charger control device for detect be located at charger in, interlocking contact corresponding with charger connector with charge
Whether machine connection is normal, i.e., whether charger connector S7 connect normal with charger；DC/DC control device is located at for detecting
In DC/DC, interlocking contact corresponding with DC/DC connector whether normal, i.e. DC/DC connector S8 and DC/DC is connect with DC/DC
It whether normal connects；Electric machine controller control device is located in electric machine controller for detection, is corresponding with electric machine controller mutual
Whether interlocking point connect normal with electric machine controller, i.e., whether electric machine controller connector S9 connect normal with electric machine controller.
Moreover, the status information feedback for the connector that these three control devices will test is transferred to control detection unit.
High-voltage interlocking detection system based on above-mentioned introduction, it can be achieved that when being powered on to vehicle, during Vehicular charging and
Safety detection in vehicle travel process, with support vehicles and the safety of driver.
In vehicle power up, as shown in figure 3, safety detection processing step is as follows:
Step1, control detection unit send pulse modulation voltage signal, judgement to two high-voltage interlocking measure loops respectively
Whether the voltage signal comparison of two high-voltage interlocking measure loops is consistent；Meanwhile electric machine controller control device is to motor control
Device connector S9 connect whether be normally carried out detection with electric machine controller, judges whether interlock fault occur:
The voltage signal for being only detected simultaneously by two high-voltage interlocking measure loops is all consistent, and electric machine controller connector
When without interlock fault, adopts and judge that vehicle without interlock fault, powers on process into other high pressures, into Step2；Otherwise, it executes
Step3。
Step2, after the completion of powering on, whether DC/DC control device connect DC/DC connector S8 with DC/DC and is normally carried out
Detection, judge whether there is interlock fault, if there is interlock fault, under high pressure electricity and indicate failure components；Otherwise, explanation
Normally, entrance can drive driving status.
Step3, as long as any bar high-voltage interlocking measure loop in two high-voltage interlocking measure loops judges voltage signal
It compares inconsistent or electric machine controller control device and judges that interlock fault occurs in electric machine controller connector, then forbid high pressure
It powers on, and indicates failure components.
During Vehicular charging, as shown in figure 4, safety detection processing step is as follows:
Under the wake-up states that charge, control detection unit sends impulse modulation electricity to two high-voltage interlocking measure loops respectively
Signal is pressed, judges whether the voltage signal comparison of two high-voltage interlocking measure loops is consistent；Meanwhile charger control device is to filling
Motor connectors S7 connect whether be normally carried out detection with charger, judges whether interlock fault occur:
The voltage signal for being only detected simultaneously by two high-voltage interlocking measure loops is all consistent, and charger connector is without mutual
When locking failure, vehicle is just judged without interlock fault, into other charging flows；
Otherwise, as long as any bar high-voltage interlocking measure loop in two high-voltage interlocking measure loops judges voltage signal pair
Judge that interlock fault occurs in charger connector than inconsistent or charger control device, then forbids charging, and indicate occur
Failure components.
When interlock fault occurs in judgement during Vehicular charging, as shown in figure 5, carrying out interlock fault processing, judge
Existing interlock fault, then stop charging and indicating failure components.
In vehicle travel process, as shown in fig. 6, safety detection processing step is as follows:
Interlock fault signal, the electric machine controller control device sending electricity of DC/DC connector are issued in DC/DC control device
The interlock fault signal or control detection unit of machine controller detect that any bar occurs in two high-voltage interlocking measure loops
Interlock fault then carries out the troubleshooting movement under vehicle running state:
If DC/DC interlock fault, then Power operation is limited, and indicates DC/DC high-voltage interlocking failure；
It is if other high-voltage interlocking failures, then electric under high pressure, and indicate high-voltage interlocking abort situation.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (6)
1. a kind of high-voltage interlocking detection system, including control detection unit and the first high-voltage interlocking being connect with control detection unit
Measure loop, the first high-voltage interlocking measure loop for detect electrical connector connect with high voltage distribution box it is whether normal,
The first high-voltage interlocking measure loop includes for interlocking contact corresponding with electrical connector；The electrical connector passes through
Cable connects coad connector；
It is characterized in that, loading interlocking contact corresponding with coad connector in corresponding control device sampling connection load, respectively
Control device and control detection unit communication connection.
2. high-voltage interlocking detection system according to claim 1, which is characterized in that load includes charger, DC/DC and electricity
At least one of machine controller；Coad connector includes charger connector, DC/DC connector and electric machine controller connector
At least one of.
3. high-voltage interlocking detection system according to claim 1 or 2, which is characterized in that control detection unit is also connected with
Second high-voltage interlocking measure loop, the second high-voltage interlocking measure loop are connect for detecting battery packet gateway with battery pack
Whether normal, the second high-voltage interlocking measure loop includes for interlocking contact corresponding with battery packet gateway.
4. high-voltage interlocking detection system according to claim 3, which is characterized in that the second high-voltage interlocking measure loop
It further include for interlocking contact corresponding with service switch connector, service switch is located in battery pack.
5. high-voltage interlocking detection system according to claim 3, which is characterized in that the battery packet gateway includes battery
Packet positive connector and battery pack cathode connector.
6. high-voltage interlocking detection system according to claim 3, which is characterized in that the battery packet gateway passes through cable
High-tension connector is connected, the first high-voltage interlocking measure loop further includes for mutual interlocking corresponding with the high-tension connector
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711434328.4A CN109968980A (en) | 2017-12-26 | 2017-12-26 | A kind of high-voltage interlocking detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711434328.4A CN109968980A (en) | 2017-12-26 | 2017-12-26 | A kind of high-voltage interlocking detection system |
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| CN109968980A true CN109968980A (en) | 2019-07-05 |
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| CN201711434328.4A Pending CN109968980A (en) | 2017-12-26 | 2017-12-26 | A kind of high-voltage interlocking detection system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016658A (en) * | 2019-12-10 | 2020-04-17 | 宁波吉利汽车研究开发有限公司 | High-voltage interlocking loop, fault detection method and vehicle |
| CN113650499A (en) * | 2021-07-28 | 2021-11-16 | 岚图汽车科技有限公司 | High-voltage interlocking fault detection and processing method and system |
| CN113928123A (en) * | 2021-10-21 | 2022-01-14 | 浙江吉利控股集团有限公司 | Vehicle high-voltage interlocking system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016658A (en) * | 2019-12-10 | 2020-04-17 | 宁波吉利汽车研究开发有限公司 | High-voltage interlocking loop, fault detection method and vehicle |
| CN113650499A (en) * | 2021-07-28 | 2021-11-16 | 岚图汽车科技有限公司 | High-voltage interlocking fault detection and processing method and system |
| CN113928123A (en) * | 2021-10-21 | 2022-01-14 | 浙江吉利控股集团有限公司 | Vehicle high-voltage interlocking system |
| CN113928123B (en) * | 2021-10-21 | 2024-05-31 | 浙江吉利控股集团有限公司 | High-voltage interlocking system for vehicle |
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