CN109398088A - New-energy electric vehicle CAN bus formula combination instrument - Google Patents
New-energy electric vehicle CAN bus formula combination instrument Download PDFInfo
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- CN109398088A CN109398088A CN201811577345.8A CN201811577345A CN109398088A CN 109398088 A CN109398088 A CN 109398088A CN 201811577345 A CN201811577345 A CN 201811577345A CN 109398088 A CN109398088 A CN 109398088A
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- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910000889 permalloy Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 11
- 238000013461 design Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 239000011121 hardwood Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
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Abstract
New-energy electric vehicle CAN bus formula combination instrument, by hood, front frame, light guide plate, meter dial plate, numerical indexes driving part, PCB circuit board, bottom case, CAN bus socket composition, it is characterized by: the present invention targetedly proposes a based on the vehicle-mounted local bus of CAN, use the design scheme of the combination meter for electric automobile of new energy, its underlying protocol is CAN2.0B, application layer protocol is CANopen, in 50 meters of electric car of communication range, baud rate is 1Mbps, only need four conducting wires i.e. two pairs of twisted pairs, three CAN bus based numerical indexes driving parts complete electric car voltmeter, the instruction of the numerical indexes of speedometer and ammeter, solves the intelligent instrumentation inside electric car in passing, controller, executing agency, sensing Data communication management problem between the low-level devices such as device, reach system most save, the purpose of design of total optimization.
Description
Technical field
The present invention relates to a kind of automobile combination meter based on CAN bus formula, it is mainly used in the new energy using CAN bus
Source electric car.
Background technique
Local area network is the main direction of development of electric vehicle instrument, is to realize the further lightweight of automobile, electronization
It is the outstanding feature for measuring automobile modernization with information-based technical way.CAN bus based electric car digital instrument
Not only wiring is simple for table, and the status that, technical level single for improvement automobile instrument industry long range production relatively lags behind, and mentions
The whole knowledge content and product specification of high electric vehicle instrument all have a very important significance.
The CAN bus formula combination instrument system of electric car is solved and is realized largely inside electric car with a small amount of harness
Microprocessor, control test equipment, the data exchange communications problem between sensor and executing agency.If electric car is not
Using CAN bus and its instrument, a large amount of harness and equipment numerous on automobile to be coupled its reliability inherently problematic, not only
The difficulty in maintenance is caused, the further lightweight of electric car and information-based maximum obstacle are more become.
The New-energy electric vehicle CAN bus formula combination instrument is a kind of new network instrument, it allows in height
It is used in noise and the environment of high electromagnetic interference, therefore is particularly suitable for having as electric car the flowing of numerous interference sources to carry
Body, the physics and network protocol characteristic of CAN bus maturation especially emphasize the low layer monitoring and control of industrial automation, actually
The on line real-time monitoring administrative skill of electric car scene local area network is reached a new high.So total based on CAN
The electric car digital instrument of line is conducive to promote existing automobile instrument technical level and knowledge content, shortens and imported auto
Technological gap reinforces the competitiveness with external import electric car, significant.
Accordingly, the invention proposes a New-energy electric vehicle CAN bus formula combination instrument scheme, CAN bus is abided by
No. 11898 international standards of ISO/DIS of ISO/TC22 technical committee, International Organization for standardization formulation are followed, i.e. ISO11898:
" the High-speed Control local area network digital information exchange standard of road vehicle ", network communication underlying protocol are CAN2.0B, application layer association
View is CANopen, in electric car in 50 meters of communication ranges, baud rate 1Mbps.
The present invention compared with existing combination meter for electric automobile, it is maximum be not both it is terse, it is a kind of new due to using
The CAN bus based numerical indexes driving part of type only needs number as four conducting wires i.e. two pairs of twisted pairs and three to refer to
The combination that needle driving part can complete voltmeter, ammeter and speedometer by CAN bus agreement indicates function, makes traditional
Combination meter for electric automobile assumes an entirely new aspect.
The numerical indexes driving part full name is CAN bus based numerical indexes driving part, hereinafter referred to as
Numerical indexes driving part.CAN bus and instrument are combined together by the driving part with stepper motor technology, built-in instrument stepping
Motor body, PCB circuit board, ARM chip, micro-stepping Multi-level microstep chip, High-Speed Coupled Device, CAN bus transceiver controller,
It can will be translates directly into the current angular displacement of numerical indexes in the message information in CAN bus, to indicate measured object
Physical quantity.
For convenience, in narration below, so-called stepper motor ontology refer to only electromagnetic component and without electronic control unit
The stepper motor of part.
It should be pointed out that particular device and this hair of the CAN bus based numerical indexes driving part as a kind of key
It is bright together, applicant is in having applied for patent of invention simultaneously on the same day.
Summary of the invention
Specific technical solution is as follows:
New-energy electric vehicle CAN bus formula combination instrument described in the present embodiment is carved by hood, front frame, light guide plate, instrument
Plate, numerical indexes driving part, PCB circuit board, bottom case, CAN bus socket composition are spent, is characterized by:
Voltmeter dial, speedometer dial, ammeter dial and letter have been engraved on the meter dial plate respectively
Number indicator light, has engraved voltage calibration and number on the voltmeter dial, and the range of instruction power battery voltage is 40 ~
120V, resolution ratio 1V have voltage dynamic process staircase chart on the voltmeter dial；
Scale and number have been engraved on the speedometer dial, speed is 0 ~ 140km/h in the range that speedometer indicates, point
Resolution 2km/h is provided with total kilometrage table display window on the speedometer dial；
Current scale and number have been engraved on the ammeter dial, the range of instruction power battery electric current is 0 ~ 400A,
Resolution ratio is 5A, and there are also electric current dynamic process staircase charts on the ammeter dial；
The numerical indexes driving part is by component upper cover, component PCB circuit board, component lower casing, element bus socket, stepping
Motor body forms, and is welded with ARM chip, micro-stepping Multi-level microstep chip, high-speed light on one side in the component PCB circuit board
Coupler, CAN bus transceiver controller, I-shaped inductance, element bus socket is also welded in component PCB circuit board, described
Element bus socket be 4 cored structures, respectively+5V, CAN+, CAN-, GND；The another side of component PCB circuit board includes step
Into motor body, including iron-core workpiece, line packet, driving gear set, rotation axis, become a kind of CAN bus based number after closing up
Pointer driving part；
It is provided with hardware securing hole on lid on the component, there is three groups of fastener holes, numerical indexes driving in the PCB circuit board
Component install when, screw pass through PCB circuit board on fastener hole after, respectively with the hardware securing hole on numerical indexes driving part
It is connected, three numerical indexes driving parts are closely joined together with PCB circuit board, then again by voltage list index, speedometer
After pointer, ammeter pointer pass through meter dial plate, successively it is socketed in the rotation axis of numerical indexes driving part；
It is provided with a CAN bus socket mounting hole on the bottom case, is inserted into CAN bus socket, the CAN bus socket
It is+5V, CAN+, CAN-, GND respectively for 4 cored structures；
Element bus socket on three numerical indexes driving parts is drawn by plug respectively, is then inserted with the CAN bus of 4 cores
The corresponding plug of seat like-identified is connected；
CAN bus transceiver controller inside the numerical indexes driving part receives the report sent from CAN bus socket
It after literary data flow, directly decodes and is sent to ARM chip, ARM chip is changed into rotation axis angular displacement at just after engineering change of variable
The umber of pulse of ratio controls current angular displacement by current PRF number, drives through micro-stepping Multi-level microstep chip current
Rotation axis, pointer is accurately positioned, i.e., only need to just be respectively completed voltmeter dial, vehicle with three numerical indexes driving parts
The numerical indexes instruction of fast table dial, ammeter dial；
When assembly, in the preceding pawl insertion front frame button hole on the hood, in the meter dial plate insertion front frame, so
Light guide plate is close to the installation of meter dial plate afterwards, and PCB circuit board is close to light guide plate installation, front frame pawl is finally buckled into bottom case button hole
In.
The hood, front frame, light guide plate, bottom case are molded by engineering plastics.
Rotation axis on the numerical indexes driving part is stainless pin.
Iron-core workpiece in the numerical indexes driving part uses permalloy material.
Detailed description of the invention
It, below will be to attached drawing needed in the embodiment in order to clearly demonstrate the technical solution of the embodiment of the present invention
It is briefly described.
Fig. 1 New-energy electric vehicle CAN bus formula combination instrument elevation figure；
The scale plate front view of Fig. 2 New-energy electric vehicle CAN bus formula combination instrument；
Fig. 3 New-energy electric vehicle CAN bus formula combination instrument back side outline drawing；
Fig. 4 New-energy electric vehicle CAN bus formula combination instrument trailing flank outline drawing；
Fig. 5 New-energy electric vehicle CAN bus formula combination instrument exploded view one；
Fig. 6 New-energy electric vehicle CAN bus formula combination instrument exploded view two；
Fig. 7 New-energy electric vehicle CAN bus formula combination instrument exploded view three；
Fig. 8 New-energy electric vehicle CAN bus formula combination instrument exploded view four；
Fig. 9 New-energy electric vehicle CAN bus formula combination instrument exploded view five；
Figure 10 numerical indexes driving part outline drawing；
Figure 11 numerical indexes driving part exploded view one；
Figure 12 numerical indexes driving part exploded view two.
Label declaration:
1 hood
Pawl before 11
2 front frames
21 front frame button holes
22 front frame pawls
3 light guide plates
31 LED light light-conductive holes
4 meter dial plates
41 voltage list index
42 speed list index
43 ammeter pointers
44 voltmeter dials
45 voltage dynamic process staircase charts
46 speedometer dials
47 total kilometrage table display windows
48 ammeter dials
49 electric current dynamic process staircase charts
5 numerical indexes driving parts
51 component upper covers
52 component PCB circuit boards
53 component lower casings
54 element bus sockets
55 iron-core workpieces
56 line packets
57 driving gear sets
58 hardware securing holes
59 rotation axis
6 PCB circuit boards
61 fastener holes
7 bottom cases
71 CAN bus socket mounting holes
72 bottom case button holes
8 CAN bus sockets
Specific embodiment
With reference to the accompanying drawing and embodiment, the present invention is further illustrated.
In the present embodiment, the New-energy electric vehicle CAN bus formula combination instrument, by hood 1, front frame 2, leaded light
Plate 3, meter dial plate 4, numerical indexes driving part 5, PCB circuit board 6, bottom case 7, CAN bus socket 8 form, and main points exist
In:
Voltmeter dial 44, speedometer dial 46, ammeter dial 48 have been engraved on the meter dial plate 4 respectively
And signal lamp, voltage calibration and number have been engraved on the voltmeter dial 44, instruction power battery voltage
Range is 40 ~ 120V, resolution ratio 1V, has voltage dynamic process staircase chart 45 on the voltmeter dial 44；
Scale and number are engraved on the speedometer dial 46, speed is 0 ~ 140km/ in the range that speedometer 35 indicates
H, resolution ratio 2km/h are provided with total kilometrage table display window 47 on the speedometer dial 46；
Engrave current scale and number on the ammeter dial 48, the range of instruction power battery electric current is 0 ~
400A, resolution ratio 5A, there are also electric current dynamic process staircase charts 49 on the ammeter dial 48；
The numerical indexes driving part 5 is inserted by component upper cover 51, component PCB circuit board 52, component lower casing 53, element bus
Seat 54, stepper motor ontology form, and are welded with ARM chip, micro-stepping Multi-level microstep on one side in the component PCB circuit board 52
Chip, High-Speed Coupled Device, CAN bus transceiver controller, I-shaped inductance, element bus socket 54 are also welded to component PCB
On circuit board 52, the element bus socket 54 is 4 cored structures, and 4 cores are respectively defined as+5V, CAN+, CAN-, GND；Component
The another side of PCB circuit board 52 includes stepper motor ontology, including iron-core workpiece 55, line packet 56, driving gear set 57, rotation axis
59, assembly becomes a kind of CAN bus based numerical indexes driving part after closing up；
It is provided with hardware securing hole 58 in the component upper cover 51, there are three groups of fastener holes 61 in the PCB circuit board 6, number
Pointer driving part 5 install when, screw pass through PCB circuit board 6 on fastener hole 61 after, respectively with numerical indexes driving part 5
On hardware securing hole 58 be connected, three numerical indexes driving parts 5 are closely joined together with PCB circuit board 6, then again general
After voltage list index 41, speed list index 42, ammeter pointer 43 pass through meter dial plate 4, it is successively socketed in corresponding number
In the rotation axis 59 of pointer driving part 5；
It is provided with a CAN bus socket mounting hole 71 on the bottom case 7, is inserted into CAN bus socket 8, the CAN bus is inserted
Seat 8 is also 4 cored structures, is respectively defined as+5V, CAN+, CAN-, GND；
Element bus socket 54 on three numerical indexes driving parts 5 is drawn by plug respectively, then total with the CAN of 4 cores
The corresponding plug of 8 like-identified of line socket is connected；
What the CAN bus transceiver controller reception inside the numerical indexes driving part 5 was sent from CAN bus socket 8
It after message data stream, directly decodes and is sent to ARM chip, ARM chip is changed into 59 angular displacement of rotation axis after engineering change of variable
Directly proportional umber of pulse controls current angular displacement by current PRF number, drives through micro-stepping Multi-level microstep chip
Current operation axis 59, is accurately positioned pointer, i.e., is only just respectively completed voltmeter dial with three numerical indexes driving parts 5
44, the numerical indexes instruction of speedometer dial 46, ammeter dial 48；
When assembly, the preceding pawl 11 on the hood 1 is inserted into front frame button hole 21, before the meter dial plate 4 is embedded in
In frame 2, then light guide plate 3 is close to the installation of meter dial plate 4, and PCB circuit board 6 is close to light guide plate 3 and is installed, finally by front frame pawl
22 buckle into bottom case button hole 72, and New-energy electric vehicle CAN bus formula combination instrument completes assembly.
The hood 1, front frame 2, light guide plate 3, bottom case 7 are molded by engineering plastics.
Rotation axis 59 on the numerical indexes driving part 5 is stainless pin.
Iron-core workpiece in the numerical indexes driving part 5 uses permalloy material.
It should be pointed out that current sampling signal, voltage sampling signal and speed signal from power battery are all from electricity
Sampling node module on electrical automobile, for different sampled signals, sampling node module assigns different tagged words and with number
It is sent according to the form that block is packaged by CAN bus string, for the data packet as unit of hardwood, every hardwood data volume is 8 bytes, is used
Clock is synchronous and data bit fills insertion technology to guarantee the synchronism of communication；In addition to this, the present embodiment has used unique
Data-signal expression way and CRC even-odd check, have the function of wrong identification, when there is format error in even-odd check, system
It can retransmit automatically and send data, the leakage code rate of communication is extremely low, the high reliablity of data communication.
The present invention is the design scheme of a complete New-energy electric vehicle CAN bus formula combination instrument, is created in design
While new point, the LED light light-conductive hole 31 on the lighting problem for considering the background light of instrument, such as light guide plate 3 is also taken into account
The speedometer dial 46 on meter dial plate 4 is respectively corresponded, which belongs to routine techniques, therefore is not included in claims
In.
Voltage dynamic process staircase chart 45 of the present invention can dynamically be shown with electric current dynamic process staircase chart 49
The speed of power battery consumption or charging is not also included in claims since the technology also belongs to routine techniques.
In the present embodiment, the pin phase of micro-stepping Multi-level microstep chip and line packet in the numerical indexes driving part 5
Even, when not using micro-stepping Multi-level microstep chip, the intrinsic step angle of the numerical indexes driving part 5 is 0.333o, pointer
To occur apparent shake when deflection, after having used micro-stepping Multi-level microstep chip, the numerical indexes driving part 5 it is intrinsic
Step angle is reduced to 0.08333o, naked eyes almost do not see shake subtle when throw of pointer, and when throw of pointer shows very smooth.
A kind of New-energy electric vehicle CAN bus formula combination instrument proposed by the present invention has the advantages that:
1. the present invention targetedly proposes a kind of design scheme of New-energy electric vehicle CAN bus formula combination instrument,
Underlying protocol is CAN2.0B, and application layer protocol CANopen, high safety and reliability, cable termination matching performance is good, is resisted dry
Disturb that ability is strong, in the communication range in 50 meters of electric car, baud rate 1Mbps, only need four conducting wires i.e. two pairs of twisted pairs,
Three numerical indexes driving parts are the numerical indexes instruction for completing electric car voltmeter, speedometer and ammeter, are solved in passing
Data communication pipe between the low-level devices such as intelligent instrumentation, controller, executing agency, the sensor determined inside electric car
Reason problem, achieve the purpose that system most save, total optimization.
2. present invention employs non-destructive bus adjudication technology, when two nodes transmit data in bus simultaneously,
Controller enjoys power-driven system at the use priority for occupying bus, and the low section of other priority levels on electric car
Point can actively stop data transmission, to guarantee that the high node of priority can insusceptibly continue to transmit data, high priority
Data can be transmitted in 134 microseconds, and the bus collision ruling time is greatly saved；Estimable, system can be certainly
It is dynamic to carry out fault identification and restore automatically, there is automatic error correction function, the case where serious error is occurring in some node as CAN
Under, it can be automatically closed and cut off contacting for the node and bus, to guarantee other nodes in bus and operate unaffected.
3. in the present embodiment, replacing the various harness on electric vehicle instrument only by two pairs of twisted pairs, not only effectively
Ground solves the problems, such as being coupled for the numerous harness of electric car and equipment, realizes that multi-master communication in auto Local Area Network, information are total
It enjoys and real-time control is come in a sense to clear away the biggest obstacle of the further lightweight of electric car and electronization
It says, New-energy electric vehicle CAN bus formula combination instrument has also been started the update epoch of electric vehicle instrument, before application
For scape considerably beyond invention itself, market prospects are quite wide.
Above-mentioned is the preferred embodiment of the present invention, and those skilled in the art understands, is not departing from appended right
In the spirit and scope of the present invention defined by specification, form, details extension in terms of, it is various to made by the present invention
Variation, belongs to protection scope of the present invention.
Claims (4)
1. New-energy electric vehicle CAN bus formula combination instrument, by hood (1), front frame (2), light guide plate (3), meter dial
Plate (4), numerical indexes driving part (5), PCB circuit board (6), bottom case (7), CAN bus socket (8) composition, it is characterised in that:
Voltmeter dial (44), speedometer dial (46), ammeter have been engraved on the meter dial plate (4) respectively to carve
Scale (48) and signal lamp have engraved voltage calibration and number on the voltmeter dial (44), indicate power
The range of cell voltage is 40 ~ 120V, resolution ratio 1V, has voltage dynamic process ladder on the voltmeter dial (44)
Scheme (45)；
Engraved scale and number on the speedometer dial (46), speed the range that speedometer (35) indicates be 0 ~
140km/h, resolution ratio 2km/h are provided with total kilometrage table display window (47) on the speedometer dial (46)；
Engrave current scale and number on the ammeter dial (48), the range of instruction power battery electric current is 0 ~
400A, resolution ratio 5A, there are also electric current dynamic process staircase charts (49) on the ammeter dial (48)；
The numerical indexes driving part (5) is by component upper cover (51), component PCB circuit board (52), component lower casing (53), portion
Part bus hub (54), stepper motor ontology composition are welded with ARM chip, micro- in the component PCB circuit board (52) on one side
Step pitch Multi-level microstep chip, High-Speed Coupled Device, CAN bus transceiver controller, I-shaped inductance, element bus socket (54)
Be welded on component PCB circuit board (52), the element bus socket (54) be 4 cored structures, respectively+5V, CAN+,
CAN-,GND；The another side of component PCB circuit board (52) includes stepper motor ontology, including iron-core workpiece (55), line packet (56),
Driving gear set (57), rotation axis (59) become a kind of CAN bus based numerical indexes driving part after closing up；
It is provided with hardware securing hole (58) in the component upper cover (51), there is three groups of fastener holes in the PCB circuit board (6)
(61), numerical indexes driving part (5) install when, screw pass through PCB circuit board (6) on fastener hole (61) after, respectively with number
Hardware securing hole (58) on word pointer driving part (5) is connected, three numerical indexes driving parts (5) and PCB circuit board (6)
It is closely joined together, then again carves voltage list index (41), speed list index (42), ammeter pointer (43) across instrument
After spending plate (4), successively it is socketed in the rotation axis (59) of numerical indexes driving part (5)；
It is provided with a CAN bus socket mounting hole (71) on the bottom case (7), is inserted into CAN bus socket (8), the CAN
Bus hub (8) is also 4 cored structures, is+5V, CAN+, CAN-, GND respectively；
Element bus socket (54) on three numerical indexes driving parts (5) is drawn by plug respectively, then with 4 cores
The corresponding plug of CAN bus socket (8) like-identified is connected；
The internal CAN bus transceiver controller of the numerical indexes driving part (5) is received to be sent from CAN bus socket (8)
After the message data stream come, directly decodes and be sent to ARM chip, ARM chip is changed into rotation axis (59) angle after engineering change of variable
The directly proportional umber of pulse of displacement, current angular displacement is controlled by current PRF number, through micro-stepping Multi-level microstep core
Piece drives current operation axis (59), and pointer is accurately positioned, i.e., is only just respectively completed electricity with three numerical indexes driving parts (5)
Press the numerical indexes instruction of table dial (44), speedometer dial (46), ammeter dial (48)；
When assembly, in preceding pawl (11) insertion front frame button hole (21) on the hood (1), the meter dial plate
(4) in insertion front frame (2), then light guide plate (3) is close to meter dial plate (4) installation, and PCB circuit board (6) is close to light guide plate (3)
Installation, finally buckles into front frame pawl (22) in bottom case button hole (72).
2. New-energy electric vehicle CAN bus formula combination instrument according to claim 1, it is characterised in that: the screening
Light shield (1), front frame (2), light guide plate (3), bottom case (7) are molded by engineering plastics.
3. New-energy electric vehicle CAN bus formula combination instrument according to claim 1, it is characterised in that: the number
Rotation axis (59) on word pointer driving part (5) is stainless pin.
4. New-energy electric vehicle CAN bus formula combination instrument according to claim 1, it is characterised in that: the number
Iron-core workpiece in word pointer driving part (5) uses permalloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577345.8A CN109398088A (en) | 2018-12-24 | 2018-12-24 | New-energy electric vehicle CAN bus formula combination instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811577345.8A CN109398088A (en) | 2018-12-24 | 2018-12-24 | New-energy electric vehicle CAN bus formula combination instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109398088A true CN109398088A (en) | 2019-03-01 |
Family
ID=65460604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811577345.8A Pending CN109398088A (en) | 2018-12-24 | 2018-12-24 | New-energy electric vehicle CAN bus formula combination instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN109398088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412355A (en) * | 2018-12-24 | 2019-03-01 | 彭希南 | Using the numerical indexes driving assembly of Zigbee WLAN |
| WO2022243898A1 (en) * | 2021-05-19 | 2022-11-24 | Accelerated Systems Inc. | Methods and systems for operating an electric vehicle |
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Application publication date: 20190301 |