CN105824305A - Power consumption testing apparatus and system for automotive electric control unit - Google Patents
Power consumption testing apparatus and system for automotive electric control unit Download PDFInfo
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- CN105824305A CN105824305A CN201610140501.9A CN201610140501A CN105824305A CN 105824305 A CN105824305 A CN 105824305A CN 201610140501 A CN201610140501 A CN 201610140501A CN 105824305 A CN105824305 A CN 105824305A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24048—Remote test, monitoring, diagnostic
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Abstract
The invention discloses a power consumption testing apparatus and system for an automotive electric control unit. The power consumption testing apparatus is characterized in that a first track is connected with a plurality of corresponding electric control units by a plurality of first branch circuits; and a second track is connected with a plurality of corresponding electric control units by a plurality of second branch circuits. A power supply is used for providing power for the first track and the second track. A current detection unit is connected to the second track and carries out communication with an upper computer. When the power supply provides power for at least one electric control unit among the multiple electric control units by the second track, the upper computer calculates power consumption of the electric control units that correspond to the second track and are in a power receiving state according to the current measured by the current detection unit. Therefore, power consumption of multiple electric control units of the whole automobile as well as power consumption of each electric control unit can be measured; free switching of different power consumption detection modes is realized; and the operation becomes convenient.
Description
Technical field
The present invention relates to automobile technical field, particularly to power consumption test device and the power consumption test system of a kind of automobile electronic control unit of a kind of automobile electronic control unit.
Background technology
In the related, the power consumption test of automobile electronic control unit is to measure battery positive voltage or cathodal current by current clamp or circuit tester mostly.Correlation technique has the drawback that, the electric current sum that electric current is multiple ECU measured, it is impossible to obtain each ECU or the operating current of each system.And place the most hidden in being arranged on car due to ECU, the power consumption test carrying out each ECU on car load is difficult to.
Therefore, correlation technique needs to improve.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, it is an object of the present invention to propose the power consumption test device of a kind of automobile electronic control unit, this device can measure the power consumption of multiple ECU, it is possible to measures the power consumption of each ECU, simple operation.
Further object is that the power consumption test system proposing a kind of automobile electronic control unit.
For reaching above-mentioned purpose, the power consumption test device of a kind of automobile electronic control unit that one aspect of the present invention embodiment proposes, including: the first track, described first track is connected with corresponding multiple ECUs respectively by multiple first branch roads；Second track, described second track is connected with corresponding multiple ECUs respectively by multiple second branch roads；Power supply, described power supply is powered for giving described first track and described second track respectively；Current detecting unit, described current detecting unit is connected in described second track, and described current detecting unit communicates with host computer, wherein, when described power supply powers at least one ECU in the plurality of ECU by described second track, described host computer according to described current detecting unit measurement to the Current calculation power consumption that be in ECU by electricity condition corresponding with described second track.
The power consumption test device of the automobile electronic control unit proposed according to embodiments of the present invention, power supply powers to respectively the first track and the second track, when powering to by the second track at least one ECU in multiple ECUs, host computer according to current detecting unit measurement to the Current calculation power consumption that be in ECU by electricity condition corresponding with the second track, thus it is possible not only to measure the power consumption of multiple ECUs on car load, the power consumption of each ECU can also be measured, realize freely switching of different power consumption detection pattern, simple operation.
According to one embodiment of present invention, each described first branch road is provided with the first gate-controlled switch to control the break-make of the first corresponding branch road；The second gate-controlled switch it is provided with to control the break-make of the second corresponding branch road on each described second branch road.
According to one embodiment of present invention, between each described first branch road and corresponding described second branch road, there is shared sub-branch road, so that each described first branch road is connected with corresponding ECU by described shared sub-branch road with corresponding described second branch road.
According to one embodiment of present invention, each described sharing is provided with the 3rd gate-controlled switch on sub-branch road, connects or open circuit simultaneously while controlling the first corresponding branch road and the second branch road.
According to one embodiment of present invention, described each sharing is additionally provided with electric fuse on sub-branch road.
According to one embodiment of present invention, described current detecting unit is integrated with drive circuit, described drive circuit is connected with the plurality of first branch road and the plurality of second branch road respectively, and described drive circuit also communicates with described host computer, described drive circuit controls the plurality of first branch road and the break-make of the plurality of second branch road for the signal that drives sent according to described host computer.
A specific embodiment according to the present invention, described host computer is communicated with described current detecting unit by USB line or Serial Port Line.
A specific embodiment according to the present invention, described power supply is accumulator or D.C. regulated power supply.
For reaching above-mentioned purpose, the power consumption test system of a kind of automobile electronic control unit that another aspect of the present invention embodiment proposes, including: host computer；The power consumption test device of described automobile electronic control unit.
The power consumption test system of the automobile electronic control unit proposed according to embodiments of the present invention, power consumption test device by above-mentioned automobile electronic control unit, it is possible not only to measure the power consumption of multiple ECUs on car load, the power consumption of each ECU can also be measured, thus realize freely switching of different power consumption detection pattern, simple operation.
Accompanying drawing explanation
Fig. 1 is the block diagram of the power consumption test device of automobile electronic control unit according to embodiments of the present invention；
Fig. 2 is the circuit theory diagrams of the power consumption test device of automobile electronic control unit according to an embodiment of the invention；
Fig. 3 is the structural representation of current detecting unit in Fig. 2；And
Fig. 4 is the interface schematic diagram of the test software installed in host computer according to an embodiment of the invention.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings power consumption test device and the system of the automobile electronic control unit that the embodiment of the present invention proposes are described in detail.
Fig. 1 is the block diagram of the power consumption test device of automobile electronic control unit according to embodiments of the present invention.As it is shown in figure 1, this power consumption test device 1 includes: first track the 10, second track 20, power supply 30 and current detecting unit 40.
Wherein, first track 10 is connected with corresponding multiple ECUs that is the 1st ECU ECU1 to n-th ECU ECUn respectively by multiple first branch roads that is the 1st the first branch road M1 to the n-th the first branch road Mn, i.e. say, the first track 10 corresponding is connected by the 1st the first branch road M1 and the 1st ECU ECU1, the first track 10 corresponding is connected by the 2nd the first branch road M2 and the 2nd ECU ECU2 ..., branch road Mn is corresponding with the n-th ECU ECUn is connected by the n-th the first for the first track 10；Second track 20 is connected with corresponding multiple ECUs that is the 1st ECU ECU1 to n-th ECU ECUn respectively by multiple second branch roads that is the 1st the second branch road N1 to the n-th the second branch road Nn, i.e. say, the second track 20 corresponding is connected by the 1st the second branch road N1 and the 1st ECU ECU1, the second track 20 corresponding is connected by the 2nd the second branch road N2 and the 2nd ECU ECU2 ..., branch road Nn is corresponding with the n-th ECU ECUn is connected by the n-th the second for the second track 20.
Power supply 30 is powered for giving the first track 10 and the second track 20 respectively；Current detecting unit 40 is connected in the second track 20, and current detecting unit 40 communicates with host computer 50, wherein, when power supply 30 powers at least one ECU in multiple ECU ECU1 to ECUn by the second track 20, the power consumption being in the ECU by electricity condition that Current calculation that host computer 50 is measured according to current detecting unit 40 is corresponding with the second track 20.
It is to say, separate two-way power rail from power supply 30: a road is the first that is normal electric rail of track 10, and the first track 10 is directly connected to power supply 30；Another road is that track i.e. measured by the second track 20, and the second track 20 is connected in series to power supply 30 by current detecting unit 40.When any one ECU is connected to the second track 20 and other ECUs are connected to the first track 10, power supply 30 is powered for this any one ECU by the second track 20, and current detecting unit 40 measurable flow cross this any one ECU electric current and by measurement to electric current be uploaded to host computer 50, host computer 50 can obtain the power consumption of this any one ECU, such that it is able to measure the power consumption of each ECU；When any two or two or more ECU are connected to the second track 20 and other ECUs are connected to the first track 10, power supply 30 is powered for any two or two or more ECU by the second track 20, and current detecting unit 40 measurable flow cross any two or the total current of two or more ECU and by measurement to total current be uploaded to host computer 50, host computer 50 can obtain any two or the total power consumption of two or more ECU, such that it is able to measure the total power consumption of multiple ECU.
Thus, the automobile electronic control unit of the embodiment of the present invention, it is possible not only to measure the power consumption of multiple ECUs on car load, it is also possible to measure the power consumption of each ECU, thus realize freely switching of different power consumption detection pattern, simple operation.
In one embodiment of the invention, as in figure 2 it is shown, be provided with the first gate-controlled switch K1 on each first branch road to control the break-make of the first corresponding branch road；The second gate-controlled switch K2 it is provided with to control the break-make of the second corresponding branch road on each second branch road.
Further, in one embodiment of the invention, as in figure 2 it is shown, have shared sub-branch road between each first branch road and the second corresponding branch road, so that each first branch road is connected with corresponding ECU by sharing sub-branch road with the second corresponding branch road.Specifically, as in figure 2 it is shown, each sharing can be provided with the 3rd gate-controlled switch K3 on sub-branch road, connect or open circuit simultaneously while controlling the first corresponding branch road and the second branch road.As a example by the 1st ECU ECU1, between the first gate-controlled switch K1 on 1st the first branch road M1 and the second gate-controlled switch K2 on the 1st the second branch road N1, there is node, one end of the 3rd gate-controlled switch K3 on the shared sub-branch road of the 1st the first branch road M1 and the 1st the second branch road N1 is connected with node, and the other end and the 1st the ECU ECU1 of the 3rd gate-controlled switch K3 on the shared sub-branch road of the 1st the first branch road M1 and the 1st the second branch road N1 are connected.
Specifically, for any one the first branch road, when the first gate-controlled switch K1 on this first branch road and the 3rd gate-controlled switch K3 closes, this first branch road turns on, and power supply 30 is that the ECU being connected with this first branch road is powered by the first track 10；In like manner for any one the second branch road, when the second gate-controlled switch K2 on this second branch road and the 3rd gate-controlled switch K3 closes, this second branch road turns on, and power supply 30 is that the ECU being connected with this second branch road is powered by the second track 20.
Conversely, for any one the first branch road, when the first gate-controlled switch K1 on this first branch road or the 3rd gate-controlled switch K3 turns off, this first branch road disconnects, and power supply 30 cannot be that the ECU being connected with this first branch road is powered by the first track 10；In like manner for any one the second branch road, when the second gate-controlled switch K2 on this second branch road or the 3rd gate-controlled switch K3 turns off, this second branch road disconnects, and power supply 30 cannot be that the ECU being connected with this second branch road is powered by the second track 20.
Further, in one embodiment of the invention, as shown in Figure 3, current detecting unit 40 is integrated with drive circuit 401, drive circuit 401 is connected with multiple first branch road M1 to Mn and multiple second branch road N1 to Nn respectively, and drive circuit 401 also communicates with host computer 50, drive circuit 401 controls multiple first branch road M1 to Mn and the break-make of multiple second branch road N1 to Nn for the signal that drives sent according to host computer 50.
It is to say, the first gate-controlled switch K1 on each first branch road, the second gate-controlled switch K2 on each second branch road and each 3rd gate-controlled switch K3 all can under the driving of drive circuit 401 drive circuit on or off.In other words, host computer 50 controls multiple first branch road M1 to Mn and the break-make of multiple second branch road N1 to Nn by current detecting unit 40 and reads the electric current that current detecting unit 40 measurement is arrived in real time, and then realizes the power consumption test of single or multiple ECU.
Specifically, user can input control instruction to select to need to carry out the ECU of measurement of power loss to host computer 50, host computer 50 sends driving signal at the rear of control instruction receiving user's input to drive circuit 401, and drive circuit 401 can control each first gate-controlled switch K1, each second gate-controlled switch K2 and each 3rd gate-controlled switch K3 according to the driving signal that host computer 50 sends.Such as, when user selects that first ECU ECU1 is carried out measurement of power loss, host computer 50 sends respective drive signal to drive circuit 401, the signal that drives that drive circuit 401 sends according to host computer 50 controls the second gate-controlled switch K2 on first the second branch road N1 and the 3rd gate-controlled switch K3 Guan Bi, and the first gate-controlled switch K1 controlled on first the first branch road M1 turns off.
A concrete example according to the present invention, first gate-controlled switch K1 is the first relay, the switch series of each first relay is associated in corresponding first branch road, and the coil of each first relay is connected with drive circuit 401, so that drive circuit 401 drives the first relay；Second gate-controlled switch K2 is the second relay, and the switch series of each second relay is associated in corresponding second branch road, and the coil of each second relay is connected with drive circuit 401, so that drive circuit 401 drives the second relay；3rd gate-controlled switch K3 is the 3rd relay, and the switch series of each 3rd relay is associated on the total sub-branch road of corresponding first branch road and the second branch road, and the coil of each 3rd relay is connected with drive circuit 401, so that drive circuit 401 drives the 3rd relay.A concrete example according to the present invention, current detecting unit 40 can be the test equipment with IO driving, current detecting, communication function of standard, it is also possible to be the measuring unit with said function being built into by multiple standard devices.
Further, in one embodiment of the invention, it is attached between the 3rd gate-controlled switch K3 and node as in figure 2 it is shown, be additionally provided with electric fuse F, electric fuse F on each shared sub-branch road, thus realized stream and short-circuit protection by electric fuse F.
It addition, in one particular embodiment of the present invention, host computer 50 can be communicated with current detecting unit 40 by USB line or Serial Port Line.
Below the measurement of power loss process of ECU is illustrated:
Can install Survey Software in host computer 50, the interface of Survey Software as shown in Figure 4, is provided with current measurement value, the power supply control of each ECU in Survey Software.And, host computer 50 can send control signal according to predetermined period to each first gate-controlled switch K1, each second gate-controlled switch K2 and each 3rd gate-controlled switch K3, current detecting unit 40 drives each first gate-controlled switch K1, each second gate-controlled switch K2 and each 3rd gate-controlled switch K3 according to the control signal received, thus realizes the control of different ECU different operating state.Meanwhile, the electric current detected also can be sent to host computer 50 according to predetermined period so that host computer 50 obtains current measurement value by current detecting unit 40, and current measurement value is the power consumption of corresponding ECU.
It should be noted that owing to the magnitude of voltage of accumulator is certain, the current value of ECU consumption i.e. represents the power consumption of ECU.
When requiring the power consumption measuring the subsystem of the first ECU ECU1, the second ECU ECU2 or the first ECU ECU1 and the second ECU ECU2 composition, under each measurement target, the state of the first gate-controlled switch K1 in each first branch road, the second gate-controlled switch K2 in each second branch road and each the 3rd gate-controlled switch K3 having in sub-branch road is the most as shown in table 1, wherein, 1 represents Guan Bi, and 0 representative turns off:
Table 1
As shown in table 1, when measuring the power consumption of the 1st ECU ECU1, drive circuit 401 in current detecting unit 40 drives the first gate-controlled switch K1 in the 1st the first branch road M1 being connected with the 1st ECU ECU1 to turn off according to the signal that drives of host computer 50, and drive the second gate-controlled switch K2 Guan Bi in the 1st the second branch road N1 being connected with the 1st ECU ECU1, simultaneously drive the first gate-controlled switch K1 Guan Bi on the first branch road M2 to Mn being respectively connected with other ECUs ECU2 to ECUn, and drive the second gate-controlled switch K2 on the second branch road N2 to Nn being respectively connected with other ECUs ECU2 to ECUn to turn off, the most also drive each 3rd gate-controlled switch K3 Guan Bi.Thus, can ensure that on the second track 20, only the 1st ECU ECU1 is in work, and remaining ECU ECU2 to ECUn is operated in the first track 10, so, the electric current that current detecting unit 40 is measured is the electric current flowing through the 1st ECU ECU1, the electric current flowing through the 1st ECU ECU1 is sent to host computer 50 by current detecting unit 40, and host computer 50 can be according to the power consumption of the 1st the ECU ECU1 of Current calculation flowing through the 1st ECU ECU1.
nullSimilarly，When measuring the power consumption of the 2nd ECU ECU2，Drive circuit 401 in current detecting unit 40 drives the first gate-controlled switch K1 in the 2nd the first branch road M2 being connected with the 2nd ECU ECU2 to turn off according to the signal that drives of host computer 50，And drive the second gate-controlled switch K2 Guan Bi in the 2nd the second branch road N1 being connected with the 2nd the second ECU ECU2，Simultaneously drive the first gate-controlled switch K1 Guan Bi on the first branch road M1 and M3 to Mn being respectively connected with other ECUs ECU1 and ECU3 to ECUn，And drive the second gate-controlled switch K2 of the second branch road N1 and N3 to Nn being connected with other ECUs ECU1 and ECU3 to ECUn to disconnect，The most also drive each 3rd gate-controlled switch K3 Guan Bi.Thus, can ensure that on the second track 20, only the 2nd ECU ECU2 is in work, and remaining ECU ECU1 and ECU3 to ECUn is operated in the first track 10, so, the electric current that current detecting unit 40 is measured is the electric current flowing through the 2nd ECU ECU2, the electric current flowing through the 2nd ECU ECU2 is sent to host computer 50 by current detecting unit 40, and host computer 50 can be according to the power consumption of the 2nd the ECU ECU2 of Current calculation flowing through the 2nd ECU ECU2.
nullWhen measuring the power consumption of subsystem of the 1st ECU ECU1 and the 2nd the second ECU ECU2 composition，Drive circuit 401 in current detecting unit 40 drives the first gate-controlled switch K1 in the 1st the first branch road M1 being connected with the 1st ECU ECU1 to turn off according to the signal that drives of host computer 50，And drive the second gate-controlled switch K2 Guan Bi in the 1st the second branch road N1 being connected with the 1st ECU ECU1，The the first gate-controlled switch K1 simultaneously driven in the 2nd the first branch road M2 being connected with the 2nd ECU ECU2 turns off，And drive the second gate-controlled switch K2 Guan Bi in the 2nd the second branch road N1 being connected with the 2nd the second ECU ECU2，Simultaneously drive the first gate-controlled switch K1 Guan Bi on the first branch road M3 to Mn being respectively connected with other ECUs ECU3 to ECUn，And drive the second gate-controlled switch K2 of the second branch road N3 to Nn being connected with other ECUs ECU3 to ECUn to disconnect，Also drive each 3rd gate-controlled switch K3 Guan Bi.nullThus，Can ensure have the 1st ECU ECU1 and the 2nd ECU ECU2 on the second track 20 in work，And remaining ECU ECU3 to ECUn is operated in the first track 10，So，The electric current that current detecting unit 40 is measured is the electric current of the subsystem of the 1st ECU ECU1 and the 2nd ECU ECU2 composition，I.e. flow through the 1st ECU ECU1 and the total current of the 2nd ECU ECU2，And the total current flowing through the 1st ECU ECU1 and the 2nd ECU ECU2 is sent to host computer 50，Host computer 50 calculates the power consumption of the subsystem of the 1st ECU ECU1 and the 2nd ECU ECU2 composition according to the total current flowing through the 1st ECU ECU1 and the 2nd ECU ECU2.
In one particular embodiment of the present invention, power supply 30 can be accumulator or D.C. regulated power supply.
To sum up, the power consumption test device of the automobile electronic control unit proposed according to embodiments of the present invention, power supply powers to respectively the first track and the second track, when powering to by the second track at least one ECU in multiple ECUs, host computer according to current detecting unit measurement to the Current calculation power consumption that be in ECU by electricity condition corresponding with the second track, thus it is possible not only to measure the power consumption of multiple ECUs on car load, the power consumption of each ECU can also be measured, freely switching of different power consumption detection pattern can be realized, simple operation.
The invention allows for the power consumption test system of a kind of automobile electronic control unit, the power consumption test system of this automobile electronic control unit includes host computer and the power consumption test device of above-mentioned automobile electronic control unit.
It should be appreciated that the concrete structure of the power consumption test device of automobile electronic control unit, operation principle are as previously described in the embodiment, it are in succinct purpose here, repeat the most one by one.
To sum up, the power consumption test system of the automobile electronic control unit proposed according to embodiments of the present invention, power consumption test device by above-mentioned automobile electronic control unit, it is possible not only to measure the power consumption of multiple ECUs on car load, the power consumption of each ECU can also be measured, freely switching of different power consumption detection pattern, simple operation can be realized.
In describing the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", on " ", D score, " front ", " afterwards ", " left ", " right ", " vertically ", " level ", " push up ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of the instruction such as " circumferential " are based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " is installed ", " being connected ", " connection ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or be merely representative of fisrt feature level height higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height less than second feature.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means that the specific features, structure, material or the feature that combine this embodiment or example description are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be to combine in one or more embodiments in office or example in an appropriate manner.Additionally, in the case of the most conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be combined and combine by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is exemplary, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (9)
1. the power consumption test device of an automobile electronic control unit, it is characterised in that including:
First track, described first track is connected with corresponding multiple ECUs respectively by multiple first branch roads；
Second track, described second track is connected with corresponding multiple ECUs respectively by multiple second branch roads；
Power supply, described power supply is powered for giving described first track and described second track respectively；
Current detecting unit, described current detecting unit is connected in described second track, and described current detecting unit communicates with host computer, wherein, when described power supply powers at least one ECU in the plurality of ECU by described second track, described host computer according to described current detecting unit measurement to the Current calculation power consumption that be in ECU by electricity condition corresponding with described second track.
The power consumption test device of automobile electronic control unit the most according to claim 1, it is characterised in that
The first gate-controlled switch it is provided with to control the break-make of the first corresponding branch road on each described first branch road；
The second gate-controlled switch it is provided with to control the break-make of the second corresponding branch road on each described second branch road.
The power consumption test device of automobile electronic control unit the most according to claim 2, it is characterized in that, between each described first branch road and corresponding described second branch road, there is shared sub-branch road, so that each described first branch road is connected with corresponding ECU by described shared sub-branch road with corresponding described second branch road.
The power consumption test device of automobile electronic control unit the most according to claim 3, it is characterised in that each described sharing is provided with the 3rd gate-controlled switch on sub-branch road, connects or open circuit simultaneously while controlling the first corresponding branch road and the second branch road.
The power consumption test device of automobile electronic control unit the most according to claim 4, it is characterised in that described each sharing is additionally provided with electric fuse on sub-branch road.
6. according to the power consumption test device of the automobile electronic control unit according to any one of claim 1-5, it is characterized in that, described current detecting unit is integrated with drive circuit, described drive circuit is connected with the plurality of first branch road and the plurality of second branch road respectively, and described drive circuit also communicates with described host computer, described drive circuit controls the plurality of first branch road and the break-make of the plurality of second branch road for the signal that drives sent according to described host computer.
The power consumption test device of automobile electronic control unit the most according to claim 6, it is characterised in that described host computer is communicated with described current detecting unit by USB line or Serial Port Line.
The power consumption test device of automobile electronic control unit the most according to claim 1, it is characterised in that described power supply is accumulator or D.C. regulated power supply.
9. the power consumption test system of an automobile electronic control unit, it is characterised in that including:
Host computer；And
Power consumption test device according to the automobile electronic control unit according to any one of claim 1-8.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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