CN108490291A - Program-controlled resistor simulation system for electric vehicle - Google Patents
Program-controlled resistor simulation system for electric vehicle Download PDFInfo
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- CN108490291A CN108490291A CN201810226665.2A CN201810226665A CN108490291A CN 108490291 A CN108490291 A CN 108490291A CN 201810226665 A CN201810226665 A CN 201810226665A CN 108490291 A CN108490291 A CN 108490291A
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- Prior art keywords
- resistance
- program
- array
- electric vehicle
- master controller
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
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- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a kind of program-controlled resistor simulation systems for electric vehicle, are related to electric vehicle manufacturing technology field；Including master controller, the master controller controls light coupling relay array, the action of the light coupling relay antenna array control electric resistance array by light coupling relay driving circuit；The master controller receives the signal sent from CAN bus by the data receiver circuit of periphery.The electric resistance array is connect with resistance signal output interface.The present invention can solve the problems, such as to need the resistance signal for simulating various specifications and type when high and low voltage electrical equipment and controller are debugged and tested and the prior art cannot be satisfied need of work and ease of use difference and of high cost.
Description
Technical field
The present invention relates to electric vehicle manufacturing technology field, especially a kind of program-controlled resistor for electric vehicle simulates system
System.
Background technology
Verification process is being developed and debugged to electric vehicle, needs to all high and low voltage electrical equipments and controller, as charging interface,
Charger, high-voltage interlocking circuit etc. carry out the work such as correlation function exploitation, debugging, test verification.In order to improve research and development and electricity
The flexibility of the work such as device functional test and high efficiency, there is an urgent need to simulate the resistance signal of various specifications and type.At present
Common resistance simulation scheme includes following three kinds：
Scheme one is directly accessed contact pin resistance in circuit or control unit interface and is simulated, as shown in Figure 5；
Scheme two, access slide rheostat is simulated in circuit or control unit interface, as shown in Figure 6；
Scheme three, access NI series resistance boards are simulated, as shown in Figure 7；
Operational version one carries out resistance simulation, and real vehicle circuit can be made to become complicated, and operation is extremely inconvenient, connection circuit hidden danger is high,
And some resistance value conditions are difficult to reach, and direct current and AC charging confirmation signal, the resistance of required simulation are debugged in for example, cooperation
49 Ω -1800 Ω of range, variation range are too wide；
When operational version two carries out resistance simulation, it is difficult to resistance value is accurately adjusted, the resistance accuracy of most of resistance value section is difficult to ensure,
Even certain resistance values can not be by adjusting realization manually；
When operational version three carries out resistance simulation, resistance board needs to arrange in pairs or groups huge industrial personal computer or cabinet to support, uses
Convenience is poor, and high expensive.
Invention content
The object of the present invention is to provide a kind of program-controlled resistor simulation systems for electric vehicle, it can be solved to high-low pressure
Electric appliance and controller are debugged and need to simulate the resistance signal of various specifications and type when being tested and the prior art can not
Meet need of work and ease of use difference and problem of high cost.
To solve the above-mentioned problems, the technical solution adopted by the present invention is：This program-controlled resistor simulation for electric vehicle system
System, including master controller, the master controller control light coupling relay array, the optocoupler by light coupling relay driving circuit
Relay array controls the action of electric resistance array；The master controller is received by the data receiver circuit of periphery from CAN bus
The signal sent.The electric resistance array is connect with resistance signal output interface.
In above-mentioned technical proposal, more specifically scheme can also be：The master controller is by 12XS128MAL microcontrollers
It is constituted with peripheral circuit, the peripheral circuit includes data receiver circuit, crystal oscillating circuit and reset circuit.
Further：The master controller is additionally provided with online debug port.
Further：The master controller and the light coupling relay array are powered by power module.
Further：The data receiver circuit includes the transceiver AMIS-4266 modules of high-speed low-power-consumption, the AMIS-
4266 modules are an interfaces between control area network C AN protocol controllers and physical bus
Further：The electric resistance array is equipped with four paths altogether, and each channel is made of the resistance of 20 different magnitudes,
In each channel impedance magnitude grouping distribution use one two two five layout methods, the channel by five groups totally two ten resistance constitute,
Every group is equipped with four resistance that radix is 1, and 20 resistance series connections enter channel primary Ioops, in each resistance two
End access control relay contact in parallel.
By adopting the above-described technical solution, compared with prior art, the present invention having an advantageous effect in that：Due to this hair
It is bright to be equipped with master controller and electric resistance array, so overcoming traditional contact pin type resistance simulation scheme and slide resistor modeling scheme
Not convenient, disadvantage that precision is not high；And realize portable, inexpensive advantage, evade the high of special resistors board and industrial personal computer
Your expense；This system realizes high-precision, and output resistance can flexibly be arranged and simulation output, can be with efficient application to electronic
In automotive development and debugging verification work, the functional developments such as ac/dc charge function, high-tension circuit interlocking can be significantly improved
Efficiency.
Description of the drawings
Fig. 1 is the structure block diagram of the present invention.
Fig. 2 is the electric resistance array block diagram of the present invention.
Fig. 3 is the Software for Design flow chart of the present invention.
Fig. 4 is the system control schematic diagram of the present invention.
Fig. 5 is the block diagram of the scheme one of the prior art.
Fig. 6 is the block diagram of the scheme two of the prior art.
Fig. 7 is the block diagram of the scheme three of the prior art.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples：
Program-controlled resistor simulation system for electric vehicle shown in FIG. 1, including master controller 1, master controller 1 pass through light coupling relay
Driving circuit 4 controls light coupling relay array 5, and the light coupling relay array 5 controls the action of electric resistance array 6；Master controller 1
The signal sent from 2 bus of CAN transceiver is received by the data receiver circuit 1-3 of periphery.Electric resistance array 6 and resistance signal
Output interface connects.Master controller 1 is made of 12XS128MAL microcontrollers and peripheral circuit, and peripheral circuit includes data receiver electricity
Road 1-3, crystal oscillating circuit 1-2 and reset circuit 1-1.Master controller 1 is additionally provided with online debug port 3.Master controller 1 and optocoupler after
Electric appliance array 5 is powered by power module 7.This system is by external 12 volts of DC power supplies power supply, internal system circuit voltage
Demand there are two types of, be that 12 volts of relay power supply and 5 volts of master controllers are powered respectively.Power supply module 7 uses DC-DC power source mould
Block LM2596S-5.0 realizes 12 volts to 5 volts of voltage conversion.Data receiver circuit includes the transceiver AMIS- of high-speed low-power-consumption
4266 modules, AMIS-4266 modules are an interfaces between control area network C AN protocol controllers and physical bus.
Electric resistance array is equipped with four paths altogether, and each channel is made of the resistance of 20 different magnitudes, electric in each channel
The grouping distribution for hindering magnitude uses one two two five layout methods, such as one 1 kilohm of resistance, two 2 kilohms of resistance and one
A 5 kilohms of resistance composition, channel by five groups totally two ten resistance constitute, every group of be equipped with that radix is 1 four
Resistance, 20 resistance series connections enter channel primary Ioops, and at each resistance both ends, parallel connection access control relay contact, resistance are compiled
For code principle as shown in Fig. 2, resistor coding shares five groups, each group of resistance value is as follows：
First group of 1R 2R 2R 5R
Second group of 10R 20R 20R 50R
Third group 100R 200R 200R 500R
4th group of 1K 2K 2K 5K
5th group of 10K 20K 20K 50K
Resistance via by five groups totally two ten resistance constitute, every group be radix 1 four resistance.20 resistance strings
Couple into channel primary Ioops, the parallel connection access control relay contact at each resistance both ends controls corresponding resistance by relay
Whether accessing circuit.For example, to export the resistance of 330R, control relay is by 10R, 20R, 100R, this four resistance of 200R
Access circuit.Since minimum resistance is 1R, resolution ratio 1R in channel 3,4, using 1R as radix saltus step.Resolution ratio is got over
Small, the roll-off characteristic of resistance can more give full play to.The program-controlled resistor system supports 1R, the resistance of 5R Resolutions to export,
Three Standard resistance range outputs may be implemented, respectively：100R to 660kR（Resolution ratio is 5R）, 20R to 65kR（Resolution ratio is
1R）, 2R to 65kR（Resolution ratio is 1R）.Each channel fixed value resistance is all made of the resistance that precision is 1%, by program to relay
The compensation correction of internal resistance, it is ensured that the resistance precision of the output in each channel is maintained within 1%.Using one two two five resistance
Grouping arranged mode may be implemented to complete continuous resistance value output on a large scale with the work of minimal number of relay.
It is a large amount of due to having been used in resistor coding circuit（80）Relay, and break-make when relay group normal work
It acts frequently, generates larger noise in this case, when common relay not only makes program-controlled resistor work, but also be difficult to protect
The reliability that card program-controlled resistor system works long hours, while relay coil is easy to do program-controlled resistor system generation electromagnetism
It disturbs, influences the steady operation of system.Based on considerations above, photoelectric coupling type relay AQY211EHA is had chosen, is compensated for completely
Electromagnetic relay applies the deficiency in program-controlled resistor system.
The Software for Design core of this system is that the variation of resistance output is realized by CAN communication control single chip computer.Fly to think card
Your 12XS128MAL has abundant I/O mouth resources, can realize multi-channel control simultaneously by I/O mouthfuls.Microcontroller passes through interruption side
Formula extracts CAN message information from CAN transceiver caching, by calculating, configures each I/O mouthfuls of output, and driving relay works,
To realize the output of corresponding resistor.Each resistance output channel has 20 relays to control each magnitude resistance access electricity simultaneously
Whether road, to realize the output of target resistance value.Array mode is used for the control algolithm of relay group in a channel（4*
5）, by the distribution to each array element value, control the work of corresponding relay.When do not have in CAN transceiver data into
When coming, the output of existing resistance value is kept.
The Software for Design flow of this system is as shown in Figure 3.
This system sends the output that CAN message data control resistance via by host computer CANoe.System integrally control and
Interaction schematic diagram is as shown in Figure 4.CAN message data are configured by DBC databases in host computer interface, are exported by CAN boards
Message data, microcontroller receive message data, configure each access output resistance to required controller according to message data or make
Use circuit.
Host computer CAN controls message coding information is as shown in table 1：
1 CAN message coding information table of table
The CAN message data bit of program-controlled resistor system/byte code format uses " Motorola " format .dbc data library texts
Part position coded sequence is as shown in table 2：
2 database file coded sequence of table
Program-controlled resistor system amounts to four resistance output channels, and the control CAN message signal definition in each channel is as shown in table 3.
Table 3 lists resistance virtual value output area, resolution ratio and resistance the output conversion described of each resistance via simultaneously.Wherein 1,
The resistance value in 2 channels ranging from 100R~660KR, resolution ratio 5R；3 channel resistance value ranging from 20R~65KR are differentiated
Rate is 1R；4 channel resistance values ranging from 2R~65KR, resolution ratio 1R.Each channel different resistance output area and precision
Resistance value suitable for different requirements exports.
3 each channel control signals of table define and output information
This system overcomes traditional contact pin type resistance simulation scheme and the not convenient of slide resistor modeling scheme, precision be not high
Disadvantage；And realize portable, inexpensive advantage, evade the expensive expense of special resistors board and industrial personal computer；This system is realized high
Precision, and output resistance can flexibly be arranged and simulation output, can be verified with efficient application to electric vehicle development and debugging
In work, the functional developments efficiency such as ac/dc charge function, high-tension circuit interlocking can be significantly improved.
Claims (6)
1. a kind of program-controlled resistor simulation system for electric vehicle, including master controller, it is characterised in that：The master controller passes through
Light coupling relay driving circuit controls light coupling relay array, the action of the light coupling relay antenna array control electric resistance array；Institute
It states master controller and the signal sent from CAN bus, the electric resistance array and resistance is received by the data receiver circuit of periphery
Signal output interface connects.
2. program-controlled resistor simulation system for electric vehicle according to claim 1, it is characterised in that：The master controller by
12XS128MAL microcontrollers and peripheral circuit are constituted, and the peripheral circuit includes data receiver circuit, crystal oscillating circuit and resets electric
Road.
3. program-controlled resistor simulation system for electric vehicle according to claim 1 or 2, it is characterised in that：The main control
Device is additionally provided with online debug port.
4. program-controlled resistor simulation system for electric vehicle according to claim 1 or 2, it is characterised in that：The main control
Device and the light coupling relay array are powered by power module.
5. program-controlled resistor simulation system for electric vehicle according to claim 1 or 2, it is characterised in that：The data connect
The transceiver AMIS-4266 modules that circuit includes high-speed low-power-consumption are received, the AMIS-4266 modules are control area network C AN
An interface between protocol controller and physical bus.
6. program-controlled resistor simulation system for electric vehicle according to claim 1 or 2, it is characterised in that：The Resistor Array Projector
Row are equipped with four paths altogether, and each channel is made of the resistance of 20 different magnitudes, point of impedance magnitude in each channel
Group distribution use one two two five layout methods, the channel by five groups totally two ten resistance constitute, every group be equipped with radix be one or two
Two or five four resistance, 20 resistance series connections enter channel primary Ioops, the parallel connection access control relay at each resistance both ends
Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810226665.2A CN108490291A (en) | 2018-03-19 | 2018-03-19 | Program-controlled resistor simulation system for electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810226665.2A CN108490291A (en) | 2018-03-19 | 2018-03-19 | Program-controlled resistor simulation system for electric vehicle |
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| CN108490291A true CN108490291A (en) | 2018-09-04 |
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| CN201810226665.2A Pending CN108490291A (en) | 2018-03-19 | 2018-03-19 | Program-controlled resistor simulation system for electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109738721A (en) * | 2018-12-29 | 2019-05-10 | 南京富士通南大软件技术有限公司 | A kind of resistance signal simulator and method and product test simulation system |
| CN110737363A (en) * | 2019-10-31 | 2020-01-31 | 广东晶科电子股份有限公司 | resistive touch screen simulation control device and method |
| CN110737257A (en) * | 2019-06-12 | 2020-01-31 | 武汉卡尔玛汽车电子有限公司 | CAN-based programmable automobile temperature sensor resistance signal output device |
| CN112046425A (en) * | 2020-09-08 | 2020-12-08 | 珠海格力电器股份有限公司 | Electric vehicle's communication framework and electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109738721A (en) * | 2018-12-29 | 2019-05-10 | 南京富士通南大软件技术有限公司 | A kind of resistance signal simulator and method and product test simulation system |
| CN110737257A (en) * | 2019-06-12 | 2020-01-31 | 武汉卡尔玛汽车电子有限公司 | CAN-based programmable automobile temperature sensor resistance signal output device |
| CN110737363A (en) * | 2019-10-31 | 2020-01-31 | 广东晶科电子股份有限公司 | resistive touch screen simulation control device and method |
| CN110737363B (en) * | 2019-10-31 | 2023-08-04 | 广东晶科电子股份有限公司 | Resistance type touch screen simulation control device and method |
| CN112046425A (en) * | 2020-09-08 | 2020-12-08 | 珠海格力电器股份有限公司 | Electric vehicle's communication framework and electric vehicle |
| CN112046425B (en) * | 2020-09-08 | 2022-04-08 | 珠海格力电器股份有限公司 | Electric vehicle's communication framework and electric vehicle |
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Application publication date: 20180904 |