CN207268845U - A kind of new-energy automobile VCU detection load boxs - Google Patents
A kind of new-energy automobile VCU detection load boxs Download PDFInfo
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- CN207268845U CN207268845U CN201721072634.3U CN201721072634U CN207268845U CN 207268845 U CN207268845 U CN 207268845U CN 201721072634 U CN201721072634 U CN 201721072634U CN 207268845 U CN207268845 U CN 207268845U
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Abstract
The utility model discloses a kind of new-energy automobile VCU detection load boxs, including：Babinet, the operation panel on the babinet and connecting element, power module and analog circuit in the babinet, the power module is connected with the analog circuit, for powering to the analog circuit, the analog circuit is connected by the connecting element with VCU to be detected；The operation panel is connected with the analog circuit, to control the analog circuit to simulate different load characteristics.The utility model can reduce the testing cost of VCU and improve detection efficiency.
Description
Technical field
Detection device technical field is the utility model is related to, is loaded more particularly to a kind of new-energy automobile VCU detections
Case.
Background technology
Automobile is as the most important traffic in the world today and means of transport, and the mark of social science and technology's development level
Will, important impetus is all played to social and economic construction and social and cultural development.And as economic is further developed,
Car ownership also will further rise in world wide.From the perspective of the energy, the rapid growth of car owning amount is to energy
Source safety proposes stern challenge with environmental protection.It is at present, complete shared by the petroleum resources that automobile is consumed according to statistics
Ballstone oil consumption total amount alreadys exceed 50%, so as to also cause various countries to all suffer from the energy brought since automobile is fast-developing
Problem, therefore new-energy automobile also gradually is promoted.
Entire car controller (Vehicle Control Unit, the VCU) control unit most crucial as new-energy automobile, i.e.,
Commanders in chief of the VCU as the automatically controlled network of whole new-energy automobile, the control of the performance of VCU to whole new-energy automobile is to closing weight
Will, therefore it is to ensure the important prerequisite that new-energy automobile performance is stablized to ensure that the performance of VCU is stablized.
In order to ensure that the performance of VCU is stablized, usually it is required for being detected its load characteristic before each VCU entruckings.
At present, the loading condition to VCU is typically carried out using hardware-in-the-loop (Hardware-in-the-loop, i.e. HIL) emulation technology
Tested.But used in itself as a developing instrument because of HIL, it is not a simple test equipment,
Therefore fictitious load characteristic is one of the very little in its various functions.Therefore, HIL is used as load box, first
Using upper very inconvenient, second does not also calculate economically, is similar to " only working as calculator use by computer ".In addition,
For in technical characteristic, because HIL prices are costly, in design, its interface is by general ECU (Electronic
Control Unit, i.e. electronic control unit) thinking go consider, therefore its load board resource be restricted, if
For new-energy automobile VCU, the load of HIL, which is likely to be, cannot meet VCU loading demands.For the tool used
For body environment, and HIL is in itself in design because the controller of simulation built in the inside, and what it considered is in development environment
Under tested, so it cannot generally meet the condition of environmental test.
To sum up, there is an urgent need for a kind of load box, it is detected with the load characteristic to new-energy automobile VCU, so as to reduce detection
Cost simultaneously improves detection efficiency.
Utility model content
It is to be solved in the utility model be existing HIL be used for testing cost caused by new-energy automobile VCU detections it is high and
The problem of detection efficiency is low.
To solve the above-mentioned problems, the utility model provides a kind of new-energy automobile VCU detection load boxs, including：Case
Body, the operation panel on the babinet and connecting element, power module and analog circuit in the babinet, it is described
Power module is connected with the analog circuit, and for powering to the analog circuit, the analog circuit passes through the grafting group
Part is connected with VCU to be detected；The operation panel is connected with the analog circuit, to control the analog circuit simulation not
Same load characteristic.
Preferably, the analog circuit includes 1-20 railway digital amounts input circuit, at least digital output all the way
Circuit, at least switching value input circuit, 1-18 way switch amounts output circuit, 1-22 roads simulated measurement input circuit, at least one all the way
One or more in road analogue quantity output circuit, 1-5 roads PWM input circuits and 1-8 roads PWM output circuits, described in per road
It is digital input circuit, the digital quantity output circuit, the switching value input circuit, the switching value output circuit, described
Between simulated measurement input circuit, the analogue quantity output circuit, the PWM input circuits and the PWM output circuits simultaneously
Connection.
Preferably, the switching value input circuit include being connected to the power module and the connecting element it
Between the first tri-state switch, first tri-state switch passes through the On-off signal signal end of the connecting element and the VCU
Connection.
Preferably, the switching value output circuit includes the second tri-state switch, relay and indicator light, it is described after
Electric appliance includes relay contact and relay coil to change the shape of the relay contact when the relay coil is powered
State, second tri-state switch and the relay coil are series between the power module and the connecting element, described
The one termination power module of relay contact, the other end of the relay contact is grounded by the indicator light, described
Indicator light is used to indicate output switch parameter state.
Preferably, the switching value output circuit further includes the first current-limiting resistance, first current-limiting resistance
One end is connected with the indicator light, the other end ground connection of first current-limiting resistance.
Preferably, the simulated measurement input circuit includes adjustable resistance, the first fixing end of the adjustable resistance
It is connected with the power module, the second fixing end of adjustable resistance ground connection, the movable end of the adjustable resistance passes through described
Connecting element is connected with the analog input signal end of the VCU.
Preferably, the PWM output circuits include light emitting diode and triode, the sun of the light emitting diode
Pole is connected to the power module, and the cathode of the light emitting diode is connected to the collector of the triode, the triode
Emitter ground connection, the base stage of the triode is connected by the connecting element with the PWM output signal end of the VCU.
Preferably, the PWM output circuits further include the second current-limiting resistance and the 3rd current-limiting resistance, and described second
Current-limiting resistance is connected between the anode of the power module and the light emitting diode, and the 3rd current-limiting resistance is connected to institute
State between the base stage of triode and the connecting element.
Preferably, it is equipped with and the matched circuit board of the operation panel, the analog circuit in the babinet
It is integrated on the circuit board.
Preferably, the connecting element includes the line bank being arranged in the babinet and arranged on the babinet external application
To connect the connector of the VCU, one end of the line bank and the circuit board electrical connection, the other end of the line bank lead to
The connector is crossed to be electrically connected.
Compared with prior art, the beneficial effects of the utility model are：
What the load box in the utility model embodiment was connected by the setting analog circuit in babinet and with analog circuit
Power module and connecting element, in this way, when being detected to VCU, need to only pass through the power module and exterior adjustable electric
Source connects, and is connected by the connecting element with VCU to be detected, afterwards by manipulate the button on the operation panel,
The buttons such as touching, you can control the analog circuit to carry out load simulation adjusting, so as to meet the test needs of VCU, with to it
Carry out detection rapidly and efficiently.At the same time, since the load box in the utility model embodiment is used exclusively for VCU detections
, therefore, also so that the load box is not only simple in structure and easy to operate, so that overall reduce testing cost.
Brief description of the drawings
Fig. 1 is circuit theory of the new-energy automobile VCU detections load box in test in the utility model embodiment
Schematic diagram；
Fig. 2 is the structure diagram of the new-energy automobile VCU detection load boxs in the utility model embodiment；
Fig. 3 is the load simulation circuit structure of the new-energy automobile VCU detection load boxs in the utility model embodiment
Schematic diagram；
Fig. 4 is the switching value output circuit schematic diagram in the utility model embodiment；
Fig. 5 is the switching value input circuit schematic diagram in the utility model embodiment；
Fig. 6 is the simulated measurement input circuit schematic diagram in the utility model embodiment；
Fig. 7 is the PWM output circuit schematic diagrams in the utility model embodiment.
Wherein, 101, control panel；102nd, circuit board；103rd, line bank；104th, babinet；105th, VCU signals harness；
106th, connector；107、VCU；108th, regulated power supply；109th, power supply harness；110th, power supply box；111st, connecting element；112nd, mould
Intend circuit；113rd, power module；201st, telecommunication circuit；202nd, signal wire；203rd, simulated measurement input circuit；204th, circuit board is defeated
Go out terminal；205th, power supply input circuit；206th, power cord；207th, digital input circuit；208th, digital quantity output circuit；209、
PWM output circuits；210th, circuit board；211st, PWM input circuits；301st, the first tri-state switch；302nd, On-off signal signal end；
401st, adjustable resistance；402nd, analog input signal end；501st, the second current-limiting resistance；502nd, triode；503rd, light emitting diode；
504th, the 3rd current-limiting resistance；505th, PWM output signal end；601st, the second tri-state switch；602nd, relay；603rd, output switch parameter
Signal end；604th, the first current-limiting resistance；605th, indicator light.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not intended to limit the scope of the present invention.
As shown in Figure 1 to Figure 3, a kind of new-energy automobile VCU107 detections load of the preferred embodiment in the utility model
Case, including：Babinet 104, the operation panel on the babinet 104 and connecting element 111, in the babinet 104
Power module 113 and analog circuit 112, the power module 113 is connected with the analog circuit 112, for the simulation
Circuit 112 is powered, and the analog circuit 112 is connected by the connecting element 111 with VCU107 to be detected；The operating surface
Plate is connected with the analog circuit 112, to control the analog circuit 112 to simulate different load characteristics.
Above-mentioned load box when being detected to VCU107, only need to by the power module 113 with outside it is adjustable
Power supply 108 connects, and is connected by the connecting element 111 with VCU107 to be detected, afterwards by manipulating the operating surface
The buttons such as button, touching on plate, you can control the analog circuit 112 to carry out load simulation adjusting, so as to meet VCU107
Test need, to carry out detection rapidly and efficiently to it.At the same time, since the load box in the utility model embodiment is
Dedicated for VCU107 detections, therefore, also so that the load box is not only simple in structure and easy to operate, so that overall reduce
Testing cost.
Core components of the VCU107 as new-energy automobile, has its special load characteristic, and these load characteristics can
Simulated with input and output by digital quantity, analog quantity, switching value and PWM.Specifically, the as shown in figure 3, mould
1-20 railway digital amounts input circuit 207, at least digital quantity output circuit 208, at least all the way all the way can be included by intending circuit 112
Switching value input circuit, 1-18 way switch amounts output circuit, 1-22 roads simulated measurement input circuit 203, at least analog quantity is defeated all the way
Go out the one or more in circuit, 1-5 roads PWM input circuits 211 and 1-8 roads PWM output circuits 209, and described in per road
Digital input circuit 207, the digital quantity output circuit 208, the switching value input circuit, output switch parameter electricity
Road, the simulated measurement input circuit 203, the analogue quantity output circuit, the PWM input circuits 211 and the PWM are defeated
Go out in parallel between circuit 209, in this way, can not only be simulated to the load characteristic of VCU107, but also the setting of multichannel can be with
The loading demand for making load box meet different VCU107.
In addition, the parallel connection of each circuit is also possible that input and output switching is easy, and circuit simple and durable, signal connection side
Easy shape, so as to so that the load box more easily apply VCU107 DV (Design Validation, i.e., design test
Card) and PV (Production Validation, i.e. Product Validation) in.
Exemplary, as shown in Figures 1 to 5, the switching value input circuit can include being connected to the power module
The first tri-state switch 301 between 113 and the connecting element 111, first tri-state switch 301 pass through the connecting element
111 are connected with the digital-quantity input interface of the VCU107, switching value the opening to the VCU107 different for inputting height
Pass amount input signal end 302, i.e. Pki.Specifically, first tri-state switch 301 have first input end, the second input terminal and
Output terminal, the first input end of first tri-state switch 301 are connected with the power module 113, and first tri-state is opened
301 the second input end grounding is closed, the output terminal of first tri-state switch 301 is connected with the connecting element 111.
As shown in figure 4, the switching value output circuit can include the second tri-state switch 601, relay 602 and indicator light
605, the relay 602 include relay contact and relay coil with described in changing when the relay coil is powered after
The state of appliance contact, second tri-state switch 601 and the relay coil be series at the power module 113 with it is described
Between connecting element 111, so that the relay coil can be defeated by the switching value of the connecting element 111 and VCU107
Go out 603 (i.e. P of signal endko) connection；The one termination power module 113 of the relay contact, the relay contact
The other end is grounded by the indicator light 605, and the indicator light 605 is used to indicate output switch parameter state.
When carrying out output switch parameter test, it is only necessary to adjust second tri-state switch 601, you can with to VCU107's
High-low side output is tested, and the indicator light 605 can explicitly indicate that the quality of output switch parameter, consequently facilitating observation
The output characteristics of VCU107.Exemplary, the indicator light 605 can use LED light.
Certainly, the first current-limiting resistance 604 can also be added in the switching value output circuit, and makes first current limliting
One end of resistance 604 is connected with the indicator light 605, the other end ground connection of first current-limiting resistance 604, to be carried out to circuit
Protection.
As shown in fig. 6, the simulated measurement input circuit 203 can include adjustable resistance 401, and the adjustable resistance 401
The first fixing end be connected with the power module 113, the second fixing end of the adjustable resistance 401 ground connection, the adjustable electric
The movable end of resistance 401 is connected by the connecting element 111 with the analog input signal end 402 of the VCU107.In this way, work as
When needing to simulate different loads, it is only necessary to adjust the adjustable resistance 401, you can bear with the resistance for simply and easily simulating different
Carry, so as to test the analog input of VCU107.
As shown in fig. 7, the PWM output circuits 209 can include light emitting diode 503 and triode 502, it is described to shine
The anode of diode 503 is connected to the power module 113, and the cathode of the light emitting diode 503 is connected to the triode
502 collector, the emitter ground connection of the triode 502, the base stage of the triode 502 pass through the connecting element 111
It is connected with the PWM output signal end 505 of the VCU107.In this way, when carrying out PWM output tests, by observing described shine
Whether the state of diode 503 can export PWM and be normally carried out judging.For example, when PWM is normally exported, three pole
After pipe 502 turns on, the light emitting diode 503 can be controlled to shine.
It is, of course, also possible to the second current-limiting resistance 501 and the 3rd current-limiting resistance are added in the PWM output circuits 209
504, and make second current-limiting resistance 501 be connected to the power module 113 and the light emitting diode 503 anode it
Between, the 3rd current-limiting resistance 504 is connected between base stage and the connecting element 111 of the triode 502, so as to institute
PWM output circuits 209 are stated to be protected.
Above-mentioned imput output circuit can be integrated on a circuit board 102, naturally it is also possible to be separately positioned on difference
Circuit board 102 on, and for the ease of production and processing, preferably, as shown in figure 3, can set in the babinet 104 and institute
The matched circuit board 102 of operation panel is stated, and the analog circuit 112 is integrated on the circuit board 102.It is exemplary
, telecommunication circuit 201, circuit board lead-out terminal 204 and power supply input circuit 205 can also be set on the circuit board, and institute
Power supply input circuit 205 is stated to power to other circuits by power cord 206.
In addition, the connecting element 111 can include the line bank 103 being arranged in the babinet 104 and arranged on the case
Body 104 is outer to connect the connector 106 of the VCU107, and one end of the line bank 103 is electrically connected with the circuit board 102
Connect, the other end of the line bank 103 is electrically connected by the connector 106.It is exemplary, the line bank 103 with it is described
It can be connected between connector 106 using external VCU signals harness 105.Two plug connectors are employed in the present embodiment
106, i.e. AP1 and AP2.
The power module 113 can be in the power supply box 110 being built in the babinet 104, and the power supply box 110
It can be connected by power supply harness 109 with exterior regulated power supply 108.
It can be connected between each circuit and the connecting element 111 in the analog circuit 112 by signal wire 202.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and replacement can also be made, these change
The scope of protection of the utility model is also should be regarded as into replacement.
Claims (10)
- A kind of 1. new-energy automobile VCU detection load boxs, it is characterised in that including：Babinet, the operation on the babinet Panel and connecting element, power module and analog circuit in the babinet, the power module and the analog circuit Connection, for powering to the analog circuit, the analog circuit is connected by the connecting element with VCU to be detected；Institute State operation panel to be connected with the analog circuit, to control the analog circuit to simulate different load characteristics.
- 2. new-energy automobile VCU detection load boxs as claimed in claim 1, it is characterised in that the analog circuit includes 1-20 railway digital amounts input circuit, at least digital quantity output circuit, at least switching value input circuit, 1-18 way switch all the way all the way Measure output circuit, at least 1-22 roads simulated measurement input circuit, analogue quantity output circuit, 1-5 roads PWM input circuits and 1- all the way One or more in 8 road PWM output circuits, per digital input circuit described in road, the digital quantity output circuit, described are opened Pass amount input circuit, the switching value output circuit, the simulated measurement input circuit, the analogue quantity output circuit, the PWM It is in parallel between input circuit and the PWM output circuits.
- 3. new-energy automobile VCU detection load boxs as claimed in claim 2, it is characterised in that the On-off signal electricity Road includes the first tri-state switch being connected between the power module and the connecting element, and first tri-state switch passes through The connecting element is connected with the On-off signal signal end of the VCU.
- 4. new-energy automobile VCU detection load boxs as claimed in claim 2, it is characterised in that the output switch parameter electricity Road includes the second tri-state switch, relay and indicator light, and the relay includes relay contact and relay coil with institute State the state for changing the relay contact when relay coil is powered, second tri-state switch and the relay coil string Be coupled between the power module and the connecting element, a termination power module of the relay contact, it is described after The other end of appliance contact is grounded by the indicator light, and the indicator light is used to indicate output switch parameter state.
- 5. new-energy automobile VCU detection load boxs as claimed in claim 4, it is characterised in that the output switch parameter electricity Road further includes the first current-limiting resistance, and one end of first current-limiting resistance is connected with the indicator light, first current-limiting resistance The other end ground connection.
- 6. new-energy automobile VCU detection load boxs as claimed in claim 2, it is characterised in that the analog input electricity Road includes adjustable resistance, and the first fixing end of the adjustable resistance is connected with the power module, and the second of the adjustable resistance Fixing end is grounded, and the movable end of the adjustable resistance is connected by the analog input signal end of the connecting element and the VCU Connect.
- 7. new-energy automobile VCU detection load boxs as claimed in claim 2, it is characterised in that the PWM output circuits bag Light emitting diode and triode are included, the anode of the light emitting diode is connected to the power module, the light emitting diode Cathode is connected to the collector of the triode, the emitter ground connection of the triode, and the base stage of the triode passes through described Connecting element is connected with the PWM output signal end of the VCU.
- 8. new-energy automobile VCU detection load boxs as claimed in claim 7, it is characterised in that the PWM output circuits are also Including the second current-limiting resistance and the 3rd current-limiting resistance, second current-limiting resistance is connected to the power module and described luminous two Between the anode of pole pipe, the 3rd current-limiting resistance is connected between the base stage of the triode and the connecting element.
- 9. such as claim 1-8 any one of them new-energy automobile VCU detection load boxs, it is characterised in that the babinet Interior be equipped with is integrated on the circuit board with the matched circuit board of the operation panel, the analog circuit.
- 10. new-energy automobile VCU detection load boxs as claimed in claim 9, it is characterised in that the connecting element includes Line bank in the babinet and outside the babinet to connect the connector of the VCU, the one of the line bank End and the circuit board electrical connection, the other end of the line bank are electrically connected by the connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072634.3U CN207268845U (en) | 2017-08-24 | 2017-08-24 | A kind of new-energy automobile VCU detection load boxs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721072634.3U CN207268845U (en) | 2017-08-24 | 2017-08-24 | A kind of new-energy automobile VCU detection load boxs |
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| CN207268845U true CN207268845U (en) | 2018-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829090A (en) * | 2018-08-20 | 2018-11-16 | 四川野马汽车股份有限公司 | A kind of vehicle control unit of electric vehicle off-line detection system and detection method |
-
2017
- 2017-08-24 CN CN201721072634.3U patent/CN207268845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829090A (en) * | 2018-08-20 | 2018-11-16 | 四川野马汽车股份有限公司 | A kind of vehicle control unit of electric vehicle off-line detection system and detection method |
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