CN104518764B - Overcurrent sensing device and method - Google Patents
Overcurrent sensing device and method Download PDFInfo
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- CN104518764B CN104518764B CN201410371060.4A CN201410371060A CN104518764B CN 104518764 B CN104518764 B CN 104518764B CN 201410371060 A CN201410371060 A CN 201410371060A CN 104518764 B CN104518764 B CN 104518764B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
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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
- B60R16/03—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 for supply of electrical power to vehicle subsystems or for
- B60R16/033—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 for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to overcurrent sensing device and method, overcurrent sensing device of the invention is characterised by, by the Load-aware overcurrent of vehicle, only carries out power supply to the load for having perceived overcurrent.According to the present invention, there is the effect that can prevent causing electronic installation to damage because of vehicle internal short-circuit or overcurrent, particularly there is the advantages of being controlled by the decentralized power s of each module to prevent side effect and follow-up accident.That is, it can prevent when making all power-offs, cause inconvenience or the accident possibility occurrence of driver due to other electronic installations can not be used.In addition, with that can prevent from damaging caused by battery discharging, it is capable of the effect of prolonging service life of battery.
Description
Technical field
The present invention relates to overcurrent sensing device and method, more specifically, is related to a kind of Load-aware mistake by vehicle
The device and method of electric current.
Background technology
The information of monitoring, is passed through LIN by the voltage of conventional storage battery sensor monitoring vehicle battery, electric current, temperature
(Local Interconnect Network's network) communication passes to engine controller as master controller, engine controller using the information transmitted as
Basis, the state of vehicle battery is grasped, alternating current generator is controlled in order to adjust vehicle load according to the result of grasp
(Alternator)。
That is, as shown in figure 1, conventional IBS Vehicular systems include vehicle battery, IBS (Intelligent
Battery Sensor, intelligent battery sensor), engine controller (Energy Management Controller),
Loaded as representing, including G (Generator), i.e. the load of electrical generation of generator, alternating current generator etc., M (Motor), i.e.,
The large-current electric motivation driving load such as MDPS, ABS, AirSUS, L (Electric), the i.e. electrical resistance of headlamp, lamp etc. are born
Carry etc., IBS only obtains the current loading overall on vehicle.
On the other hand, due to high current electronic device applications in energy management in the increase of vehicle, vehicle importance just
Improving, therefore, the necessity of OEM following intelligent electric management system is also improving.
Conventional power-supply management system mainly embodies in independent ECU or engine controller, in sensor output
Data are limited in terms of content, limitation be present in terms of precision manages power supply.
That is, conventional power-supply management system can only monitor the load of vehicle overall current, Wu Fazhen by IBS output currents
To each load, individual currents detection is carried out, therefore when detecting abnormal current, makes all load closings or opening etc., exists
Can not accurate the problem of managing vehicle power supply.
The content of the invention
(technical task to be solved)
The present invention be exactly in view of as above problem and research and develop, its object is to provide a kind of overcurrent sensing device and side
Method, overcurrent is perceived by the load of vehicle, power supply only is carried out to the load for having perceived overcurrent.
(solution of solution)
To reach the purpose, the overcurrent sensing device of one aspect of the invention is characterised by, including：Multiplexing
Device, it exports the G-load (Generator Load) of vehicle, M loads (Motor Load) and L loads (Electric Load)
Electric current in certain one；And IBS (Intelligent Battery Sensor, intelligent battery sensor), it is by institute
When the electric current for stating the certain loads of multiplexer output is more than the overcurrent critical value pre-set, in order to prevent the car
Battery feed access the certain loads of overcurrent occur so that be connected to the certain loads and supply the car
Battery feed circuit power switch close.
The overcurrent cognitive method of another aspect of the present invention includes：Step is exported, the G of multiplexer output vehicle is born
Carry, certain one in the electric current that M is loaded and L is loaded；And step is turned off the power switch, as the spy exported by the multiplexer
When the electric current of fixed load is more than the overcurrent critical value pre-set, to prevent from connecing to the certain loads that overcurrent occurs
Enter the battery feed of the vehicle, close the circuit for being connected to the battery feed that the vehicle is supplied to the certain loads
Power switch.
(invention effect)
According to the present invention, there is the effect that can prevent causing electronic installation to damage because of vehicle internal short-circuit or overcurrent.
Particularly there is the advantages of being controlled by the decentralized power s of each module to prevent follow-up accident.
That is, it can prevent when making all power-offs, cause driver's due to other electronic installations can not be used
Inconvenience or accident possibility occurrence.
In addition, with that can prevent from damaging caused by battery discharging, it is capable of the effect of prolonging service life of battery.
Brief description of the drawings
Fig. 1 is the figure for illustrating conventional art.
Fig. 2 is the figure for illustrating the overcurrent sensing device of one embodiment of the invention.
Fig. 3 is the flow chart for illustrating the overcurrent cognitive method of one embodiment of the invention.
Symbol description
100:IBS (Intelligent Battery Sensor, intelligent battery sensor) 200:Multiplexer
(MUX)
300:SJM (Smart Junction Box, intelligent wiring box)
Embodiment
The embodiment described later described in detail referring to the drawings and together, advantages and features of the invention and the side for reaching it
Method will be clear and definite.But the present invention is not limited to embodiments disclosed below, but can be with mutually different variform
Embody, the present embodiment is merely provided for making disclosure of the invention more complete, makes those skilled in the art
The category of invention is understood that, the present invention is defined by the record of claim.On the other hand, used in this specification
Term be used for illustrate embodiment, do not really want limit the present invention.In this manual, it is single as long as not mentioned especially in sentence
Number type also includes complex number type." including (comprises) " for being used in specification or " including (comprising) ", refers to say
And inscape, step, action and/or element do not exclude the presence of or other additional more than one inscapes, step, dynamic
Work and/or element.
The overcurrent sensing device of one embodiment of the invention is characterised by, including：Multiplexer, it exports vehicle
G-load (Generator Load), M load (Motor Load) and L load (Electric Load) electric current in it is a certain
Person；And IBS (Intelligent Battery Sensor, intelligent battery sensor), it is defeated by the multiplexer
When the electric current of the certain loads gone out is more than the overcurrent critical value pre-set, in order to prevent the battery feed of the vehicle
The certain loads of overcurrent occur for access so that are connected to the battery feed that the vehicle is supplied to the certain loads
Circuit power switch close.
Characterized in that, the IBS controls the multiplexer and causes the electric current of the output G-load, institute is controlled
State multiplexer and cause the electric current of the output M loads, control the multiplexer and cause the output L loads
Electric current.
It is characterized in that, critical if the overcurrent pre-set by the electric current of the ADC vehicle overall loads perceived
More than value, then the IBS is arranged to the selective value of the multiplexer to select the G to confirm the electric current of each load
The value of load, receive to input the electric current of the G-load from the multiplexer, the selective value is arranged to select the M
The value of load, receive to input the electric current of the M loads from the multiplexer, the selective value is arranged to select the L
The value of load, receive to input the electric current of the L loads from the multiplexer.
Characterized in that, the multiplexer is from the situation for being arranged to select the value of the G-load in the selective value
In the electric current of lower acquisition, the electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, is calculated
Go out the electric current of the G-load, the electric current of the G-load calculated is exported and felt to the IBS, the IBS described in by ADC
The electric current known is considered as incorporates the G-load in the electric current of the vehicle overall load, from the electric current perceived by ADC
In subtract the electric current of the vehicle overall load, calculate the electric current of the G-load.
Characterized in that, the IBS is based on the electric current of the G-load calculated, if be considered as in the G-load stream
Overcurrent is crossed, then is signaled to driver and induces parking, to prevent the battery feed of the vehicle from accessing the G-load,
So that the power switch of the G-load is closed.
Characterized in that, situation of the multiplexer from the value for being arranged to select the M to load in the selective value
In the electric current of lower acquisition, the electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, is calculated
Go out the electric current of the M loads, the M calculated the electric currents loaded are exported and felt to the IBS, the IBS described in by ADC
The electric current known is considered as the electric current that the M loads are incorporated in the electric current of the vehicle overall load, is perceived from described by ADC
Electric current in subtract the electric current of the vehicle overall load, calculate the electric current of the M loads.
Characterized in that, the IBS is flowed based on the electric current of the M loads calculated if being considered as and being loaded in the M
The overcurrent is crossed, then is signaled to driver and induces parking, to prevent the battery feed of the vehicle accesses the M from bearing
Carry so that the power switch of the M loads is closed.
Characterized in that, situation of the multiplexer from the value for being arranged to select the L to load in the selective value
In the electric current of lower acquisition, the electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, is calculated
Go out the electric current of the L loads, the L calculated the electric currents loaded are exported and felt to the IBS, the IBS described in by ADC
The electric current known is considered as the electric current that the L loads are incorporated in the electric current of the vehicle overall load, is perceived from described by ADC
Electric current in subtract the electric current of the vehicle overall load, calculate the electric current of the L loads.
Characterized in that, the IBS is flowed based on the electric current of the L loads calculated if being considered as and being loaded in the L
The overcurrent is crossed, then is signaled to driver and induces parking, to prevent the battery feed of the vehicle accesses the L from bearing
Carry so that the power switch of the L loads is closed.
The overcurrent cognitive method of one embodiment of the invention is characterised by, including：Step is exported, multiplexer is defeated
Certain one gone out in G-load, M loads and the electric current of L loads of vehicle；And step is turned off the power switch, answered when by the multichannel
When the electric current of the certain loads exported with device is more than the overcurrent critical value pre-set, to prevent to the institute that overcurrent occurs
The battery feed that certain loads access the vehicle is stated, closes the electric power storage for being connected to and the vehicle being supplied to the certain loads
The power switch of the circuit of pond power supply.
Characterized in that, the output step includes：Control the multiplexer and cause the electricity of the output G-load
The step of stream；The step of controlling the multiplexer and causing the electric current of the output M loads；And the control multiplexing
Device and the step of cause the electric current of output L load.
Characterized in that, the step that turns off the power switch includes：Receive the current step of input G-load, felt by ADC
The electric current for the vehicle overall load known if the overcurrent critical value pre-set more than, then in order to confirm the electricity of each load
Stream, the selective value of the multiplexer is arranged to select the value of the G-load, receives input institute from the multiplexer
State the electric current of G-load；Receive the current step of input M loads, the selective value is arranged to select the value of the M loads, from
The multiplexer receives to input the electric current of the M loads；And receive the current step of input L loads, the selective value
It is arranged to select the value of the L loads, receives to input the electric current of the L loads from the multiplexer.
Characterized in that, the current step for receiving input G-load includes：Selection institute is arranged to from the selective value
In the electric current obtained in the case of the value for stating G-load, the feelings for being arranged to not select the value of any load in the selective value are subtracted
The electric current obtained under condition, the step of receiving to input the electric current of the G-load calculated；And the electric current perceived by ADC
It is considered as and incorporates the G-load in the electric current of the vehicle overall load, institute is subtracted from the electric current perceived by ADC
The electric current of vehicle overall load is stated, the step of calculating the electric current of the G-load.
Characterized in that, the step that turns off the power switch includes：Based on the electric current of the G-load calculated, such as
Fruit is considered as flows through the overcurrent in the G-load, then the step of being signaled to driver and induce parking；It is and described to prevent
The battery feed of vehicle accesses the G-load so that the step of power switch of the G-load is closed.
Characterized in that, the current step for receiving input M loads includes：Selection institute is arranged to from the selective value
In the electric current obtained in the case of the value for stating M loads, the feelings for being arranged to not select the value of any load in the selective value are subtracted
The electric current obtained under condition, the step of receiving to input the electric current of the M loads calculated；And the electric current perceived by ADC
It is considered as the electric current that the M loads are incorporated in the electric current of the vehicle overall load, from the electric current perceived by ADC
The electric current of the vehicle overall load is subtracted, the step of calculating the electric current of M load.
Characterized in that, the step that turns off the power switch includes：Based on the electric current of the M loads calculated, such as
Fruit is considered as flows through the overcurrent in M loads, then the step of being signaled to driver and induce parking；It is and described to prevent
The battery feed of vehicle accesses the M loads so that the step of power switch of the M loads is closed.
Characterized in that, the current step for receiving input L loads includes：Selection institute is arranged to from the selective value
In the electric current obtained in the case of the value for stating L loads, the feelings for being arranged to not select the value of any load in the selective value are subtracted
The electric current obtained under condition, the step of receiving to input the electric current of the L loads calculated；And the electric current perceived by ADC
It is considered as the electric current that the L loads are incorporated in the electric current of the vehicle overall load, from the electric current perceived by ADC
The electric current of the vehicle overall load is subtracted, the step of calculating the electric current of L load.
Characterized in that, the step that turns off the power switch includes：Based on the electric current of the L loads calculated, such as
Fruit is considered as flows through the overcurrent in L loads, then the step of being signaled to driver and induce parking；It is and described to prevent
The battery feed of vehicle accesses the L loads so that the step of power switch of the L loads is closed.
The present invention is different from for beating vehicle overall load detection of excessive current opening/closing whether conventional art, but
By vehicle module detection of excessive current whether, so as to diagnose the module that breaks down of vehicle exactly.
Referring to Fig. 2, illustrate the overcurrent sensing device of one embodiment of the invention.Fig. 2 is to be used to illustrate the present invention
The figure of the overcurrent sensing device of one embodiment.
As shown in Fig. 2 the overcurrent sensing device of the present invention includes IBS (100, Intelligent Battery
) and multiplexer (200, MUX) Sensor.
IBS (100) control multiplexers (200), individually confirm that G-load (bear by the generating such as generator, alternating current generator
Carry), M load (the large-current electric motivation such as MDPS, ABS, AirSUS driving load), L load (headlamp, lamp etc. it is electric
Property load) electric current.
When overcurrent (each load more than time that perception is pre-set in each load (G-load, M loads, L loads)
Overcurrent critical value according to it is each load pre-set) when, IBS (100) to SJM (300, Smart Junction Box, intelligence
Terminal box) transmit perceived overcurrent load information.
SJB (300) is based on the information for the load transmitted from IBS (100), to prevent from connecing to the load that overcurrent occurs
Enter power supply and inform generation overcurrent to driver.
Illustrate that overcurrent detects by the load of vehicle below.
If IBS (100) exports the control for the value for selective value being arranged to not select any load to multiplexer (200)
Signal processed, then multiplexer (200) not from it is each load (G-load, M load, L load) transmit electric current be output to IBS
(100)。
Therefore, the electric current (ADC electric currents) calculated based on the both end voltage difference of parallel resistance is considered as car by IBS (100)
The electric current of overall load, i.e. incorporate the electric current after the electric current of the electric current of G-load, the electric current of M loads and L loads, i.e. with
Based on the both end voltage difference of parallel resistance, perceive vehicle overall load electric current, if continue (200A substantially continue 10 seconds with
On) perceive vehicle overall load electric current be more than the overcurrent critical value pre-set, then, in order to by Load-aware electric current
And output control signal.
For example, if IBS (100) exports the control for the value for selective value being arranged to select G-load to multiplexer (200)
The electric current of signal processed, then multiplexer (200) extraction G-load, is exported to IBS (100).
That is, the electric current that multiplexer (200) is obtained in the case of the value for being arranged to select G-load in selective value is (existing
In electric current) in, subtract in the electric current (before electric current) obtained in the case that selective value is arranged to not select the value of any load, calculate
Go out G-load electric current, the G-load electric current calculated is exported and gives IBS (100).
IBS (100) is considered as the ADC electric currents of perception in the electric current that G-load is incorporated in the electric current of vehicle overall load, from
The electric current of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of G-load.
If the control that IBS (100) exports the value for selective value being arranged to select M loads to multiplexer (200) is believed
Number, then the electric current of multiplexer (200) extraction M loads, is exported to IBS (100).
For example, multiplexer (200) electric current for obtaining in the case of the value for being arranged to select M loads in selective value
In (present electric current), subtract obtained in the case that selective value is arranged to not select the value of any load electric current (before electricity
Stream), M load currents are calculated, the M load currents calculated are exported and give IBS (100).
IBS (100) is considered as the ADC electric currents of perception in the electric current that M loads are incorporated in the electric current of vehicle overall load, from
The electric current of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of M loads.
If the control that IBS (100) exports the value for selective value being arranged to select L loads to multiplexer (200) is believed
Number, then the electric current of multiplexer (200) extraction L loads, is exported to IBS (100).
That is, the electric current that multiplexer (200) is obtained in the case of the value for being arranged to select L loads in selective value is (existing
In electric current) in, subtract in the electric current (before electric current) obtained in the case that selective value is arranged to not select the value of any load, calculate
Go out L load currents, the L load currents calculated are exported and give IBS (100).
IBS (100) is considered as the ADC electric currents of perception in the electric current that L loads are incorporated in the electric current of vehicle overall load, from
The electric current of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of L loads.
The electric current that IBS (100) perceives each load is overcurrent (each load of more than the time (substantially 2 seconds) pre-set
Overcurrent critical value pre-set according to each load) when, the information transmission of each load for having perceived overcurrent to SJM
(300)。
For example, if IBS (100) perceives abnormal current (overcurrent) in L loads, the L information transmissions loaded are given
SJM(300)。
If SJM (300) delivers the information of L loads from IBS (100), overcurrent is flowed through during L is loaded and informs driving
Member, and parking is induced, in order to prevent loading the battery feed of access vehicle to L, close the power switch that L is loaded.
As it was previously stated, according to the present invention, having can prevent because vehicle internal short-circuit or overcurrent cause electronic installation to damage
Effect, particularly there is the advantages of being controlled by the decentralized power s of each module to prevent follow-up accident.That is, can prevent
When making all power-offs, the inconvenience of driver or accident is caused to occur due to other electronic installations can not be used
Property.In addition, with that can prevent from damaging caused by battery discharging, it is capable of the effect of prolonging service life of battery.
Above by reference to Fig. 2, the overcurrent sensing device of one embodiment of the invention is illustrated, referring to Fig. 3, illustrates this
The overcurrent cognitive method of invention one embodiment.Fig. 3 is the overcurrent cognitive method for illustrating one embodiment of the invention
Flow chart.
As shown in figure 3, based on the both end voltage difference of parallel resistance, ADC electric currents (S100) are obtained.
The ADC electric currents of acquisition are considered as the electric current (TLC) of vehicle overall load, i.e. incorporate electric current, the M loads of G-load
Electric current and L load electric current after electric current, i.e. based on the both end voltage difference of parallel resistance, perceive vehicle overall load
Electric current.
Whether the electric current (TLC) for the vehicle overall load for judging to perceive is more than the overcurrent critical value (280A) pre-set
(S101), judged result, when the electric current (TLC) of the vehicle overall load of perception is more than the overcurrent critical value pre-set
When (280A), judge perceive vehicle overall load electric current (TLC) be more than pre-set overcurrent critical value (280A) when
Between whether be more than the time (10 seconds) pre-set (S102).
Judged result, if the electric current (TLC) for perceiving vehicle overall load is more than the overcurrent critical value pre-set
The time of (280A) is more than the time (10 seconds) pre-set, then, for the output control signal by load acquisition electric current
(S103)。
For example, output is arranged to selective value to select the control signal of the value of G-load, the electric current of G-load is extracted.
That is, the ADC electric currents of perception are considered as the electric current that G-load is incorporated in the electric current (TLC) of vehicle overall load, from
The electric current (TLC) of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of G-load.
In addition, output is arranged to selective value to select the control signal of the value of M loads, the electric current of extraction M loads.
That is, the ADC electric currents of perception are considered as the electric current that M loads are incorporated in the electric current (TLC) of vehicle overall load, from
The electric current (TLC) of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of M loads.
In addition, output is arranged to selective value to select the control signal of the value of L loads, the electric current of extraction L loads.
That is, the ADC electric currents of perception are considered as the electric current that L loads are incorporated in the electric current (TLC) of vehicle overall load, from
The electric current (TLC) of vehicle overall load is subtracted in the ADC electric currents of perception, calculates the electric current of L loads.
Whether the electric current of each load for judging to calculate what is pre-set more than the time (substantially 2 seconds) is perceived as overcurrent
(the overcurrent critical value respectively loaded is pre-set according to each load) (S104), judged result, when the electric current of each load calculated
Pre-setting when more than the time (substantially 2 seconds) being perceived as overcurrent, for the electric current of each load, calculating average value (G_
avg、M_avg、L_avg)(S105)。
The average value (G_avg) of G-load electric current for confirming to calculate whether be the G-load pre-set overcurrent (200A)
Above (S106), result is confirmed, when the overcurrent that the average value (G_avg) of the G-load electric current calculated is the G-load pre-set
It is overcurrent generating state value (S107) G-load overcurrent traffic sign placement when more than (200A).
The average value (M_avg) of M load currents for confirming to calculate whether be the M loads pre-set overcurrent (180A)
Above (S108), result is confirmed, when the overcurrent that the average value (M_avg) of the M load currents calculated is the M loads pre-set
It is overcurrent generating state value (S109) M load over-currents traffic sign placement when more than (180A).
The average value (L_avg) of L load currents for confirming to calculate whether be the L loads pre-set overcurrent (150A)
Above (S110), result is confirmed, when the overcurrent that the average value (L_avg) of the L load currents calculated is the L loads pre-set
It is overcurrent generating state value (S111) L load over-currents traffic sign placement when more than (150A).
Based on the overcurrent flag information of each load so that open or close the power switch of each load
(S112)。
Above by reference to preferred embodiments and drawings, the composition of the present invention is illustrated, still, this is example
, in the category of the technological thought not past the present invention, various deformation can be achieved.Therefore, the scope of the present invention can not office
The embodiment for being limited to explanation is determined, and should be determined according to claims and with the impartial scope of the claims.
Claims (16)
- A kind of 1. overcurrent sensing device, it is characterised in that including：Multiplexer, it exports certain one in the electric current of the G-load of vehicle, M loads and L loads, and wherein G-load is generating Load, M loads are large-current electric motivation driving load, and L loads are current loading；Intelligent battery sensor, its electric current of the certain loads exported by the multiplexer be pre-set it is excessively electric When flowing more than critical value, in order to prevent the access of the battery feed of the vehicle from the certain loads of overcurrent occur so that The power switch for being connected to the circuit for the battery feed that the vehicle is supplied to the certain loads is closed,By the electric current of the ADC vehicle overall loads perceived if the overcurrent critical value pre-set more than, then the intelligence Energy storage device sensor is arranged to the selective value of the multiplexer to select the G to bear to confirm the electric current of each load The value of load, receive to input the electric current of the G-load from the multiplexer, the selective value is arranged to select the M to bear The value of load, receive to input the electric current of the M loads from the multiplexer, the selective value is arranged to select the L to bear The value of load, receive to input the electric current of the L loads from the multiplexer.
- 2. overcurrent sensing device according to claim 1, it is characterised in thatThe intelligent battery sensor controls the multiplexer and causes the electric current of the output G-load, described in control Multiplexer and the electric current for causing output M load, control the multiplexer and cause the electricity of the output L loads Stream.
- 3. overcurrent sensing device according to claim 1, it is characterised in thatIn the electric current that the multiplexer is obtained in the case of the value for being arranged to select the G-load in the selective value, The electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, calculates the electricity of the G-load Stream, exports the electric current of the G-load calculated to the intelligent battery sensor；The intelligent battery sensor is considered as the electric current perceived by ADC in the electric current of the vehicle overall load The G-load is incorporated, the electric current of the vehicle overall load is subtracted from the electric current perceived by ADC, calculates the G The electric current of load.
- 4. overcurrent sensing device according to claim 3, it is characterised in thatThe intelligent battery sensor is flowed through based on the electric current of the G-load calculated if be considered as in the G-load Overcurrent, then it is signaled to driver and induces parking, to prevent the battery feed of the vehicle from accessing the G-load, makes The power switch for obtaining the G-load is closed.
- 5. overcurrent sensing device according to claim 1, it is characterised in thatIn the electric current that the multiplexer is obtained in the case of the value for being arranged to select the M loads in the selective value, The electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, calculates the electricity of the M loads Stream, the M calculated the electric currents loaded are exported to the intelligent battery sensor,The intelligent battery sensor is considered as the electric current perceived by ADC in the electric current of the vehicle overall load The electric current of the M loads is incorporated, the electric current of the vehicle overall load is subtracted from the electric current perceived by ADC, is calculated Go out the electric current of the M loads.
- 6. overcurrent sensing device according to claim 5, it is characterised in thatThe intelligent battery sensor is flowed through based on the electric current of the M loads calculated if be considered as in M loads The overcurrent, then it is signaled to driver and induces parking, to prevent the battery feed of the vehicle accesses the M from bearing Carry so that the power switch of the M loads is closed.
- 7. overcurrent sensing device according to claim 1, it is characterised in thatIn the electric current that the multiplexer is obtained in the case of the value for being arranged to select the L loads in the selective value, The electric current obtained in the case where the selective value is arranged to not select the value of any load is subtracted, calculates the electricity of the L loads Stream, the L calculated the electric currents loaded are exported to the intelligent battery sensor,The intelligent battery sensor is considered as the electric current perceived by ADC in the electric current of the vehicle overall load The electric current of the L loads is incorporated, the electric current of the vehicle overall load is subtracted from the electric current perceived by ADC, is calculated Go out the electric current of the L loads.
- 8. overcurrent sensing device according to claim 7, it is characterised in thatThe intelligent battery sensor is flowed through based on the electric current of the L loads calculated if be considered as in L loads The overcurrent, then it is signaled to driver and induces parking, to prevent the battery feed of the vehicle accesses the L from bearing Carry so that the power switch of the L loads is closed.
- A kind of 9. overcurrent cognitive method, it is characterised in that including：Step is exported, multiplexer exports certain one in the electric current of the G-load of vehicle, M loads and L loads, wherein G-load For load of electrical generation, M loads are large-current electric motivation driving load, and L loads are current loading；AndStep is turned off the power switch, when the electric current of the certain loads exported by the multiplexer is the overcurrent that pre-sets When more than critical value, to prevent from accessing the battery feed of the vehicle, the company of closing to the certain loads that overcurrent occurs The power switch of the circuit for the battery feed that the vehicle is supplied to the certain loads is connected to,The step that turns off the power switch includes：Receive the current step of input G-load, by the electric current of the ADC vehicle overall loads perceived if the mistake pre-set More than current critical value, then in order to confirm the electric current of each load, the selective value of the multiplexer is arranged to select the G The value of load, receive to input the electric current of the G-load from the multiplexer；Receive the current step of input M loads, the selective value is arranged to select the value of the M loads, answered from the multichannel Received to input the electric current of the M loads with device；AndReceive the current step of input L loads, the selective value is arranged to select the value of the L loads, answered from the multichannel Received to input the electric current of the L loads with device.
- 10. overcurrent cognitive method according to claim 9, it is characterised in thatThe output step includes：The step of controlling the multiplexer and causing the electric current of the output G-load；The step of controlling the multiplexer and causing the electric current of the output M loads；AndThe step of controlling the multiplexer and causing the electric current of the output L loads.
- 11. overcurrent cognitive method according to claim 9, it is characterised in thatThe current step for receiving input G-load includes：In the electric current obtained in the case of the value for being arranged to select the G-load in the selective value, subtract in the selection Value is arranged to not select the electric current obtained in the case of the value of any load, receives the electric current for the G-load that input calculates Step；AndThe electric current perceived by ADC is considered as and incorporates the G-load in the electric current of the vehicle overall load, from institute State and the electric current of the vehicle overall load is subtracted in the electric current perceived by ADC, the step of calculating the electric current of the G-load.
- 12. overcurrent cognitive method according to claim 11, it is characterised in thatThe step that turns off the power switch includes：Based on the electric current of the G-load calculated, the overcurrent is flowed through in the G-load if be considered as, is accused The step of knowing driver and inducing parking；AndTo prevent the battery feed of the vehicle from accessing the G-load so that the step that the power switch of the G-load is closed Suddenly.
- 13. overcurrent cognitive method according to claim 9, it is characterised in thatThe current step for receiving input M loads includes：In the electric current obtained in the case of the value for being arranged to select the M loads in the selective value, subtract in the selection Value is arranged to not select the electric current obtained in the case of the value of any load, receives the electric current for the M loads that input calculates Step；AndThe electric current perceived by ADC is considered as the electricity that the M loads are incorporated in the electric current of the vehicle overall load Stream, the electric current of the vehicle overall load is subtracted from the electric current perceived by ADC, calculate the electric current of the M loads Step.
- 14. overcurrent cognitive method according to claim 13, it is characterised in thatThe step that turns off the power switch includes：Based on the electric current of the M loads calculated, the overcurrent is flowed through in M loads if be considered as, is accused The step of knowing driver and inducing parking；AndTo prevent the battery feed of the vehicle from accessing the M loads so that the step that the power switch of the M loads is closed Suddenly.
- 15. overcurrent cognitive method according to claim 9, it is characterised in thatThe current step for receiving input L loads includes：In the electric current obtained in the case of the value for being arranged to select the L loads in the selective value, subtract in the selection Value is arranged to not select the electric current obtained in the case of the value of any load, receives the electric current for the L loads that input calculates Step；AndThe electric current perceived by ADC is considered as the electricity that the L loads are incorporated in the electric current of the vehicle overall load Stream, the electric current of the vehicle overall load is subtracted from the electric current perceived by ADC, calculate the electric current of the L loads Step.
- 16. overcurrent cognitive method according to claim 15, it is characterised in thatThe step that turns off the power switch includes：Based on the electric current of the L loads calculated, the overcurrent is flowed through in L loads if be considered as, is accused The step of knowing driver and inducing parking；AndTo prevent the battery feed of the vehicle from accessing the L loads so that the step that the power switch of the L loads is closed Suddenly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20130116454A KR20150037143A (en) | 2013-09-30 | 2013-09-30 | Apparatus and Method Sensing over current |
| KR10-2013-0116454 | 2013-09-30 |
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| CN104518764A CN104518764A (en) | 2015-04-15 |
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| KR20150129460A (en) | 2014-05-12 | 2015-11-20 | 현대모비스 주식회사 | Intelligent battery sensor for vehicle and method for storing data by using the sensor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201442557U (en) * | 2009-05-07 | 2010-04-28 | 济南优耐特电子科技有限公司 | Automobile door control module |
| CN103260958A (en) * | 2010-12-09 | 2013-08-21 | 矢崎总业株式会社 | Vehicle electric power distribution device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5238431B2 (en) * | 2008-09-26 | 2013-07-17 | 本田技研工業株式会社 | Vehicle load control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201442557U (en) * | 2009-05-07 | 2010-04-28 | 济南优耐特电子科技有限公司 | Automobile door control module |
| CN103260958A (en) * | 2010-12-09 | 2013-08-21 | 矢崎总业株式会社 | Vehicle electric power distribution device |
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| KR20150037143A (en) | 2015-04-08 |
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