CN108827651A - Automobile powers on detection method and device - Google Patents
Automobile powers on detection method and device Download PDFInfo
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- CN108827651A CN108827651A CN201810633907.XA CN201810633907A CN108827651A CN 108827651 A CN108827651 A CN 108827651A CN 201810633907 A CN201810633907 A CN 201810633907A CN 108827651 A CN108827651 A CN 108827651A
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The embodiment of the present application provides a kind of automobile and powers on detection method and device, is related to automobile control apparatus field.Method includes:Be in ACC grade when, VCU determines that vehicle condition information is normal, control power cathode at circuit be in closed state, and judge power supply master switch whether be in closed state;When to be no, VCU control master switch switches to closed state, and controlling power supply by master switch is the interior full vehicle power supply in addition to motor of automobile;When from switching to ON grades for ACC grades, VCU determines that electric machine controller without high pressure, triggers electric machine controller control power supply as motor power supply.VCU passes through the interval ON grades of state using the switching of ACC grades of states, do judgement and control next time again after state switching, the case where interval just can be avoided appearance detection mistake but may have been started up before reporting an error, therefore also avoid further damaging to automobile belt.
Description
Technical field
This application involves automobiles to control apparatus field, powers on detection method and device in particular to a kind of automobile.
Background technique
Before automobile starting, need to detect each device of automobile or powering on for module, it is ensured that each module is all just
Chang Houcai is powered on to each device or module, to guarantee to work normally after each device or module power on.
But currently, often detection passes through and just directly initiates, but thus in the upper electro-detection to each device or module
If may be had been started up in the presence of detection mistake but before reporting an error, to further be damaged to automobile belt.
Summary of the invention
The application is to provide a kind of automobile and powers on detection method and device, to be effectively improved drawbacks described above.
Embodiments herein is realized in the following way:
In a first aspect, the embodiment of the present application provides electric detection method on a kind of automobile, the method includes:It is being in
At ACC grades, VCU determines that vehicle condition information is normal, controls the circuit at power cathode and is in closed state, and judges the electricity
Whether the master switch in source is in closed state;When to be no, the VCU controls the master switch and switches to closed state, and
It is the interior full vehicle power supply in addition to motor of the automobile that the power supply, which is controlled, by the master switch;It is switched to from described ACC grades
At ON grades, the VCU determines that electric machine controller without high pressure, triggers the electric machine controller and controls the power supply as motor confession
Electricity.
The technical solution provided with reference to first aspect, in some possible implementations, the VCU determines vehicle condition
Information is normal, controls the circuit at power cathode and is in closed state, and judges that whether being in for master switch of the power supply is closed
Conjunction state;The method includes:VCU determines the VCU self-test fault-free and determines power supply fault-free, wherein the VCU is determined
Vehicle condition information is normally that the VCU determines the VCU self-test fault-free and determines the power supply fault-free;The VCU control
It makes the circuit at the power cathode and is in closed state;The VCU judges that whether being in for the master switch of the power supply is closed
State.
The technical solution provided with reference to first aspect, in some possible implementations, the VCU determines electricity
Machine controller triggers the electric machine controller and controls the power supply as motor power supply without high pressure, including:The VCU is determined
Electric machine controller is without high pressure, and control connects the power supply and the preliminary filling contactor of the motor switches to closed state;The VCU
Judge the electric energy that the preliminary filling contactor is exported based on the power supply whether precharge is completed;When to be, the VCU control
The main contactor for connecting the power supply and the motor switches to closed state, and the preliminary filling contactor is switched to disconnection shape
State;It is motor power supply that the VCU, which triggers the electric machine controller and controls the power supply by the main contactor,.
The technical solution provided with reference to first aspect, it is described to be cut from described ACC grades in some possible implementations
When shifting to ON grades, the VCU determines electric machine controller without high pressure, and triggering the electric machine controller and controlling the power supply is the electricity
After machine power supply, the method also includes:The VCU obtains the failed request that the power supply is sent;The VCU is according to the event
Barrier request triggers the electric machine controller and controls power supply of the power termination to the motor, and controls the master switch and cut
Shift to off-state.
The technical solution provided with reference to first aspect, in some possible implementations, the VCU controls institute
It states master switch and switches to closed state, and controlling the power supply by the master switch is the interior full vehicle in addition to motor of the automobile
Described when from switching to ON grades for described ACC grades after power supply, the VCU determines electric machine controller without high pressure, described in triggering
Before electric machine controller controls the power supply as motor power supply, the method also includes:Determine the preliminary filling contactor and
The main contactor is without open circuit or short circuit.
Second aspect, the embodiment of the present application provide electric detection means on a kind of automobile, and described device includes:First determines
Module is used for when being in ACC grades, and VCU determines that vehicle condition information is normal, is controlled the circuit at power cathode and is in closed form
State, and judge the power supply master switch whether in closed state;Electric control module on first is used for institute when to be no
It states the VCU control master switch and switches to closed state, and controlling the power supply by the master switch is to remove in the automobile
Full vehicle power supply outside motor;Electric control module on second, for when from switching to ON grades for described ACC grades, the VCU to determine electricity
Machine controller triggers the electric machine controller and controls the power supply as motor power supply without high pressure.
In conjunction with the technical solution that second aspect provides, in some possible implementations, the first determining module packet
It includes:First determination unit determines the VCU self-test fault-free for VCU and determines power supply fault-free, wherein the VCU is determined
Vehicle condition information is normally that the VCU determines the VCU self-test fault-free and determines the power supply fault-free.First control is single
Member controls the circuit at the power cathode for the VCU and is in closed state.First judging unit is sentenced for the VCU
Break the power supply master switch whether in closed state.
In conjunction with the technical solution that second aspect provides, in some possible implementations, electric control mould on described second
Block includes:Second determination unit determines electric machine controller without high pressure for the VCU, and control connects the power supply and the electricity
The preliminary filling contactor of machine switches to closed state.Second judgment unit judges that the preliminary filling contactor is based on institute for the VCU
State power supply output electric energy whether precharge complete.Switch control unit, for when to be, the VCU control to connect institute
The main contactor for stating power supply and the motor switches to closed state, and the preliminary filling contactor is switched to off-state.For
Electric trigger unit, triggering the electric machine controller to control the power supply by the main contactor for the VCU is the electricity
Machine power supply.
In conjunction with the technical solution that second aspect provides, in some possible implementations, described device further includes:It obtains
Module obtains the failed request that the power supply is sent for the VCU.Lower electric control module, for the VCU according to the event
Barrier request triggers the electric machine controller and controls power supply of the power termination to the motor, and controls the master switch and cut
Shift to off-state.
In conjunction with the technical solution that second aspect provides, in some possible implementations, described device further includes:Contact
Device detection module, for determining the preliminary filling contactor and the main contactor without open circuit or short circuit.
The beneficial effect of the embodiment of the present application is:
VCU utilizes the state in ACC grades, determines that the circuit of vehicle condition information normally, at control power cathode is in
Closed state and control master switch switch to closed state, and only controlling power supply by master switch is the full vehicle in automobile in addition to motor
Power supply.And VCU recycling switches to ON grades of state from ACC grades, determines that electric machine controller without high pressure, just triggers electric machine controller
Power supply is controlled as motor power supply.Therefore, VCU is by the interval ON grades of state using the switching of ACC grades of states, after state switching again
Judgement and control next time is done, which just can be avoided the case where appearance detects mistake but may have been started up before reporting an error
Occur, therefore also avoids further damaging to automobile belt.
To enable the above objects, features, and advantages of the application to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the flow chart of electric detection method on a kind of automobile of the application second embodiment offer;
The structural block diagram of electric detection means on a kind of automobile provided Fig. 2 shows the application 3rd embodiment;
Fig. 3 shows the knot of the first determining module in electric detection means on a kind of automobile of the application 3rd embodiment offer
Structure block diagram;
Fig. 4 shows on a kind of automobile of the application 3rd embodiment offer electric control module on second in electric detection means
Structural block diagram.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Ground description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Usually exist
The component of the embodiment of the present application described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed the application's to the detailed description of the embodiments herein provided in the accompanying drawings below
Range, but it is merely representative of the selected embodiment of the application.Based on embodiments herein, those skilled in the art are not being done
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
It should be noted that:Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
First embodiment
The embodiment of the present application provides a kind of VCU (Vehicle Control Unit, full-vehicle control decision-making device), and VCU can
It can be a kind of IC chip, the processing capacity with signal.The VCU is applied to controlled vehicle.The VCU can be with controlled vapour
Each controlled device or module connection in vehicle.
Specifically, the VCU can respectively with power supply, cathode contact device, master switch, preliminary filling contactor, main contactor, power supply
Contactor is connected with electric machine controller so that VCU can control each controlled device or module in controlled vehicle, to realize or
Execute disclosed each method, step and the logic diagram in the embodiment of the present invention.
In addition, the step of method in conjunction with disclosed in the embodiment of the present invention, can be embodied directly in the hardware elements in VCU
Execute completion, or in VCU hardware and software module combination execute completion.Software module can be located at random storage
Device, flash memory, read-only memory, this fields such as programmable read only memory or electrically erasable programmable memory, register at
In ripe storage medium.
Second embodiment
Referring to Fig. 1, the embodiment of the present application provides electric detection method on a kind of automobile, electric detection method is answered on the automobile
For above-mentioned VCU, electric detection method includes on the automobile:Step S100, step S200 and step S300.
Step S100:When being in ACC grades, VCU determines that vehicle condition information is normal, controls at the circuit at power cathode
In closed state, and judge the power supply master switch whether in closed state.
After one-key start key after the car key for starting automobile is inserted into automobile or on automobile is triggered by user, vapour
The operating status of vehicle may be at ACC grades of states.Based on the current institute of automobile in ACC grades, VCU and power supply (BATTERY
MANAGEMENT SYSTEM, power-supply management system) it is triggered according to the pre-set programs of itself, therefore VCU is based on the default of itself
Program can carry out self detection, and can receive the self-test message that power supply is sent according to self detection.
When VCU determines that the self-test of VCU is faulty and/or determine that power supply is faulty according to self-test message, then VCU determines automobile
Status information is abnormal, and the prompt information that reports an error accordingly is also generated while terminating the execution powered on.
When VCU determines the self-test fault-free of VCU and determines that power supply misses failure according to self-test message, then VCU determines automobile shape
State information is normal, and VCU can continue to execute the follow-up process powered on.At this point, VCU may determine that the cathode connected at power cathode
Whether contactor is in an off state.When being judged as non-off-state, then VCU is determined abnormal, terminates the same of the execution powered on
When also generate and report an error prompt information accordingly.When being judged as off-state, then VCU, which can control cathode contact device and be switched to, closes
Conjunction state controls the circuit at the power cathode and is in closed state.Circuit at control power cathode is in closed form
After state, VCU may determine that whether the master switch for connecting the power supply is in an off state.
Step S200:When to be no, the VCU controls the master switch and switches to closed state, and controls the power supply
Pass through the full vehicle power supply that the master switch is in the automobile in addition to motor.
When being judged as non-off-state, then VCU is determined abnormal, and corresponding report is also generated while terminating the execution powered on
Wrong prompt information.When being judged as off-state, then VCU can control master switch and be switched to closed state.In this way, positive pole
The circuit at place is just in closed state, so that VCU can control power supply to each device or module for power supply, i.e. VCU controls power supply
Pass through the full vehicle power supply that master switch is in automobile in addition to motor.In this state, to motor power supply be for secondary control in batches,
Guarantee the safety that automobile starting powers on.
To guarantee the normal of subsequent power supply, at the same time, due to power contactor, main contactor and preliminary filling contact at this time
Device original state is off-state, while controlling power supply by master switch is the full vehicle power supply in automobile in addition to motor,
VCU can also detect whether be at the port of the port of power contactor, the port of main contactor and preliminary filling contactor whether there is or not
Open circuit or short circuit.
Have in the port for the port, main contactor for determining power contactor and/or the port of preliminary filling contactor in open circuit
Or short circuit, then VCU is determined abnormal, and the prompt information that reports an error accordingly is also generated while terminating the execution powered on.
Do not have in the port for the port, main contactor for determining power contactor and the port of preliminary filling contactor in open circuit
Or short circuit, then VCU is determined normal, and subsequent process can be executed after being switched to next state.
Step S300:When from switching to ON grades for described ACC grades, the VCU determines that electric machine controller without high pressure, triggers institute
It states electric machine controller and controls the power supply as motor power supply.
It is passed through after the car key of insertion automobile is triggered by the one-key start key on predetermined manner rotation or automobile by user
It crosses preset duration (for example, 1 second), the operating status of automobile can be switched to from ACC grades of states in ON grades of states.It is based on
The current institute of automobile is in ON grades, and whether VCU can be in low level by judging the power contactor of connection electric machine controller
And judge the power contactor off-state.
When determining that the power contactor is in non-off-state, then VCU is determined abnormal, while terminating the execution powered on
Also generate the prompt information that reports an error accordingly.
When determining that the power contactor is in an off state, then VCU determines normal that VCU can control power contactor
Closed state and VCU are switched to then by off-state and can determine whether automobile is in neutral state and it is minimum to judge that SOC is greater than
Thresholding SOCGate0.If it is determined that automobile is to be not at neutral state and/or determine SOC no more than minimum threshold SOCGate0, VCU
It can determine that ON grades of states are invalid to the start command of motor, the electric machine controller low pressure for controlling electric motor starting is not allowed to power on.
If it is determined that automobile is in neutral state and to determine that SOC is greater than minimum threshold SOCGate0, VCU can determine that ON grades of states can be with
Starting to motor.
When determining that ON grades of states can be to the starting of motor, VCU may determine that whether current motor controller has high pressure.
When determining that current motor controller has high pressure, then VCU is determined abnormal, is not closed the preliminary filling relay of power supply and motor
While device, the prompt information that reports an error accordingly is also generated while also terminating the execution powered on.
When determining current motor controller without high pressure, then VCU is determined normal, and is controlled electric machine controller and carried out in low pressure
Electricity, VCU can control connection power supply and the preliminary filling contactor of motor switches to closed state, so that preliminary filling contactor is based on power supply
The electric energy of output is pre-charged.Later, VCU may determine that the electric energy that preliminary filling contactor is exported based on power supply whether precharge
It completes.Determine precharge do not complete when, then VCU not executive control operation and continue to determine whether precharge complete.Determining
When precharge is completed, VCU can control connection power supply and the main contactor of motor switches to closed state, so that power supply is based on master
Contactor is motor power supply, and is delayed after preset duration, such as 50ms, and preliminary filling contactor is switched to off-state.
After preliminary filling contactor switches to off-state, VCU can trigger electric machine controller control power supply and be connect by master
Tentaculum is motor power supply, and such motor can drive engine operation, therefore automobile just completes electro-detection and powers on.
In addition, then VCU is asked according to failure if VCU obtains the failed request that power supply is sent, such as the failed request of high pressure
It asks, electric machine controller control power supply of the power termination to motor can be triggered, and the master switch switches to off-state, to keep away
Exempt from each device or module is damaged by high pressure.
3rd embodiment
Referring to Fig. 2, the embodiment of the present application provides electric detection means 100 on a kind of automobile, electro-detection dress on the automobile
It sets 100 and is applied to VCU, electric detection means 100 includes on the automobile:
First determining module 110 is used for when being in ACC grades, and VCU determines that vehicle condition information is normal, and control power supply is negative
Circuit at pole is in closed state, and judge the power supply master switch whether in closed state.
Electric control module 120 on first are used for when to be no, and the VCU controls the master switch and switches to closed state,
And controlling the power supply by the master switch is the interior full vehicle power supply in addition to motor of the automobile.
Electric control module 130 on second, for when from switching to ON grades for described ACC grades, the VCU to determine motor control
Device triggers the electric machine controller and controls the power supply as motor power supply without high pressure.
And
Module 140 is obtained, obtains the failed request that the power supply is sent for the VCU.
Lower electric control module 150 triggers electric machine controller control institute for the VCU according to the failed request
Power supply of the power termination to the motor is stated, and controls the master switch and switches to off-state.
And
Contactor detection module 160, for determining the preliminary filling contactor and the main contactor without open circuit or short circuit.
Referring to Fig. 3, in the embodiment of the present application, the first determining module 110 includes:
First determination unit 111 determines the VCU self-test fault-free for VCU and determines power supply fault-free, wherein institute
Stating VCU and determining vehicle condition information normally is that the VCU determines the VCU self-test fault-free and determines the power supply fault-free.
First control unit 112 controls the circuit at the power cathode for the VCU and is in closed state.
First judging unit 113, for the VCU judge the master switch of the power supply whether in closed state.
Referring to Fig. 4, in the embodiment of the present application, electric control module 130 includes on second:
Second determination unit 131 determines electric machine controller without high pressure for the VCU, and control connects the power supply and institute
The preliminary filling contactor for stating motor switches to closed state.
Second judgment unit 132 judges the electric energy that the preliminary filling contactor is exported based on the power supply for the VCU
Whether precharge is completed.
Switch control unit 133, for when to be, the VCU control connects the power supply and the master of the motor connects
Tentaculum switches to closed state, and the preliminary filling contactor is switched to off-state.
Power supply trigger unit 134 triggers the electric machine controller control power supply for the VCU and is connect by the master
Tentaculum is motor power supply.
It should be noted that due to it is apparent to those skilled in the art that, for the convenience and letter of description
Clean, system, the specific work process of device and unit of foregoing description can be with reference to corresponding in preceding method embodiment
Journey, details are not described herein.
It should be understood by those skilled in the art that, the embodiment of the present application can provide as the production of method, system or computer program
Product.Therefore, in terms of the embodiment of the present application can be used complete hardware embodiment, complete software embodiment or combine software and hardware
Embodiment form.Moreover, it wherein includes computer available programs generation that the embodiment of the present application, which can be used in one or more,
The meter implemented in the computer-usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) of code
The form of calculation machine program product.
In conclusion the embodiment of the present application, which provides a kind of automobile, powers on detection method and device, method includes:It is being in
At ACC grades, VCU determines that vehicle condition information is normal, controls the circuit at power cathode and is in closed state, and judges power supply
Whether master switch is in closed state;When to be no, VCU control master switch switches to closed state, and controls power supply and pass through
Master switch is the full vehicle power supply in automobile in addition to motor;When from switching to ON grades for ACC grades, VCU determines electric machine controller without height
Pressure, triggering electric machine controller control power supply are motor power supply.
VCU utilizes the state in ACC grades, determines that the circuit of vehicle condition information normally, at control power cathode is in
Closed state and control master switch switch to closed state, and only controlling power supply by master switch is the full vehicle in automobile in addition to motor
Power supply.And VCU recycling switches to ON grades of state from ACC grades, determines that electric machine controller without high pressure, just triggers electric machine controller
Power supply is controlled as motor power supply.Therefore, VCU is by the interval ON grades of state using the switching of ACC grades of states, after state switching again
Judgement and control next time is done, which just can be avoided the case where appearance detects mistake but may have been started up before reporting an error
Occur, therefore also avoids further damaging to automobile belt.
The above is only preferred embodiment of the present application, are not intended to limit this application, for those skilled in the art
For member, various changes and changes are possible in this application.Within the spirit and principles of this application, it is made it is any modification,
Equivalent replacement, improvement etc., should be included within the scope of protection of this application.It should be noted that:Similar label and letter are under
Similar terms are indicated in the attached drawing in face, therefore, once being defined in a certain Xiang Yi attached drawing, are not then needed in subsequent attached drawing
It is further defined and explained.
More than, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, and it is any to be familiar with
Those skilled in the art within the technical scope of the present application, can easily think of the change or the replacement, and should all cover
Within the protection scope of the application.Therefore, the protection scope of the application should be subject to the protection scope in claims.
Claims (10)
1. electric detection method on a kind of automobile, which is characterized in that the method includes:
When being in ACC grades, VCU determines that vehicle condition information is normal, controls the circuit at power cathode and is in closed state, and
Whether judge the master switch of the power supply is in closed state;
When to be no, the VCU controls the master switch and switches to closed state, and controls the power supply and pass through the master switch
For the full vehicle power supply in the automobile in addition to motor;
When from switching to ON grades for described ACC grades, the VCU determines that electric machine controller without high pressure, triggers the electric machine controller
The power supply is controlled as motor power supply.
2. electric detection method on automobile according to claim 1, which is characterized in that the VCU determines vehicle condition information
Normally, control power cathode at circuit be in closed state, and judge the power supply master switch whether be in closed form
State;The method includes:
VCU determines the VCU self-test fault-free and determines power supply fault-free, wherein the VCU determines that vehicle condition information is normal
The VCU self-test fault-free is determined for the VCU and determines the power supply fault-free;
The VCU controls the circuit at the power cathode and is in closed state;
The VCU judge the master switch of the power supply whether in closed state.
3. electric detection method on automobile according to claim 2, which is characterized in that the VCU determines motor control
Device processed triggers the electric machine controller and controls the power supply as motor power supply without high pressure, including:
The VCU determines electric machine controller without high pressure, and control connects the power supply and the preliminary filling contactor of the motor switches to
Closed state;
The VCU judge the electric energy that the preliminary filling contactor is exported based on the power supply whether precharge is completed;
When to be, the main contactor that VCU control connects the power supply and the motor switches to closed state, and by institute
It states preliminary filling contactor and switches to off-state;
It is motor power supply that the VCU, which triggers the electric machine controller and controls the power supply by the main contactor,.
4. electric detection method on automobile according to claim 3, which is characterized in that described to be switched to from described ACC grades
At ON grades, the VCU determines that electric machine controller without high pressure, triggers the electric machine controller and controls the power supply as motor confession
After electricity, the method also includes:
The VCU obtains the failed request that the power supply is sent;
The VCU triggers the electric machine controller and controls confession of the power termination to the motor according to the failed request
Electricity, and control the master switch and switch to off-state.
5. electric detection method on automobile according to claim 4, which is characterized in that the VCU control is described total
Switching is to closed state, and controlling the power supply by the master switch is full vehicle power supply in the automobile in addition to motor
Later, described when from switching to ON grades for described ACC grades, the VCU determines that electric machine controller without high pressure, triggers the motor
Before controller controls the power supply as motor power supply, the method also includes:
Determine the preliminary filling contactor and the main contactor without open circuit or short circuit.
6. electric detection means on a kind of automobile, which is characterized in that described device includes:
First determining module is used for when being in ACC grades, and VCU determines that vehicle condition information is normal, controls returning at power cathode
Road is in closed state, and judge the power supply master switch whether in closed state;
Electric control module on first, for when to be no, the VCU to control the master switch and switches to closed state, and controls
The power supply passes through the full vehicle power supply that the master switch is in the automobile in addition to motor;
Electric control module on second, for when from switching to ON grades for described ACC grades, the VCU to determine electric machine controller without height
Pressure triggers the electric machine controller and controls the power supply as motor power supply.
7. electric detection means on automobile according to claim 6, which is characterized in that first determining module includes:
First determination unit determines the VCU self-test fault-free for VCU and determines power supply fault-free, wherein the VCU is true
Determining vehicle condition information normally is that the VCU determines the VCU self-test fault-free and determines the power supply fault-free;
First control unit controls the circuit at the power cathode for the VCU and is in closed state;
First judging unit, for the VCU judge the master switch of the power supply whether in closed state.
8. electric detection means on automobile according to claim 7, which is characterized in that electric control module packet on described second
It includes:
Second determination unit determines electric machine controller without high pressure for the VCU, and control connects the power supply and the motor
Preliminary filling contactor switches to closed state;
The whether pre- of the electric energy that the preliminary filling contactor is exported based on the power supply judged for the VCU for second judgment unit
Charging complete;
Switch control unit, for when to be, the VCU control to connect the main contactor switching of the power supply and the motor
To closed state, and the preliminary filling contactor is switched into off-state;
Power supply trigger unit, triggering the electric machine controller control power supply by the main contactor for the VCU is
The motor power supply.
9. electric detection means on automobile according to claim 8, which is characterized in that described device further includes:
Module is obtained, obtains the failed request that the power supply is sent for the VCU;
Lower electric control module triggers the electric machine controller and controls the power supply end for the VCU according to the failed request
Only to the power supply of the motor, and controls the master switch and switch to off-state.
10. electric detection means on automobile according to claim 9, which is characterized in that described device further includes:
Contactor detection module, for determining the preliminary filling contactor and the main contactor without open circuit or short circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810633907.XA CN108827651B (en) | 2018-06-20 | 2018-06-20 | Automobile power-on detection method and device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810633907.XA CN108827651B (en) | 2018-06-20 | 2018-06-20 | Automobile power-on detection method and device |
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CN109885024B (en) * | 2019-03-02 | 2021-05-07 | 潍柴电力设备有限公司 | Diagnostic test system and diagnostic test method for generator set |
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