CN106464560A - Termination of bus system, preferably for use in dual clutch transmission - Google Patents
Termination of bus system, preferably for use in dual clutch transmission Download PDFInfo
- Publication number
- CN106464560A CN106464560A CN201580029264.2A CN201580029264A CN106464560A CN 106464560 A CN106464560 A CN 106464560A CN 201580029264 A CN201580029264 A CN 201580029264A CN 106464560 A CN106464560 A CN 106464560A
- Authority
- CN
- China
- Prior art keywords
- control device
- resistance
- bus system
- bus
- termination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
- H04L12/40032—Details regarding a bus interface enhancer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc Digital Transmission (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention relates to a termination of a bus system, preferably for use in a dual clutch transmission, in which the bus system, which consists of at least two single wires, connects at least three control devices to each other for communication purposes, each control device being assigned a bus terminal resistor having a predefined resistance value for adjusting a control device resistance to a bus system resistance, the bus terminal resistors being connected parallel to each other. In a termination of a bus system, in which communication between the devices in the bus system is still largely possible if a cable breaks, a total resistance of the parallel-connected bus terminal resistors in a defective state of the bus system is approximately the same as the total resistance of the bus terminal resistors in a non-defective bus system.
Description
Technical field
The present invention relates to a kind of termination to bus system, it is preferably used in double-clutch speed changer, wherein by
The purpose that at least three control devices are connected to each other for communication the bus system that at least two sub-thread heart yearns are constituted, wherein
It is equipped with the bus termination resistance with predetermined resistance value for each control device, so that control device resistance and bus system
Resistors match, wherein bus termination resistance is connected in parallel to each other.
Background technology
In a motor vehicle, actuator is for example used for manipulating automatic transmission or is used for manipulating automated friction clutch.So,
In order to manipulate automated friction clutch, using the actuator (the hydrostatic clutch actuator of HCA-) of hydrostatic operation, such as its example
As disclosed in DE 10 2,010 047 801 A1.Here, actuator is interpreted as following system, described system is by e-mail
Number, for example mechanical movement is converted into by control device.
The method becoming known for starting transmission for vehicles and/or vehicular clutch from DE 10 2,012 218 252 A1,
Wherein using the clutch actuator (HCA) of this hydrostatic operation.Clutch actuator (HCA) here is total via local CAN
Line is connected with the control device of higher level, preferred variator control arrangement, during described shift control apparatus are connected in motor vehicle
In the CAN of centre.Carry out variator control arrangement via local CAN locally to control with two being included in electrostatic actuator
The communication of control equipment, wherein each described local control device respectively control a clutch of dual-clutch transmission.
For communication between described different control device CAN include twisted-pair feeder (two mutually reverse exhausted
The sub-thread heart yearn of edge, wherein has 120 ohm of default characteristic impedance at two line end) as bus media, by
This obtains the parallel circuit that all-in resistance is 60 ohm.Because the circuit applied is double with recommended according to ISO regulation 11898-2
120 ohm of characteristic impedance phase specific impedance is much lower, so must be installed into additional bus termination resistance.By means of this bus
Terminal resistance makes control device resistors match in bus system resistance.The bus termination resistance of variator control arrangement is configured to
High ohm, and can be for example 2.6k ohm, and 120 ohm of local control device of terminal resistance is low ohm.
If impedance mismatching, then controlled device receives and reflexes to bus system then to returning the signal being sent by halves
In, thus change the signal level being in bus system in this moment, this is undesirable effect and leads to Communication Jamming.
If interrupting occurs in one of sub-thread heart yearn of present CAN, then whole bus transfer is interfered, because surplus
Under bus system in all-in resistance raise, thereby result in undesirable reflection, described reflection changes the level of CAN signal.This
Lead to：This signal no longer can be explained.
Content of the invention
Therefore, the purpose that the present invention is based on is：There is provided a kind of termination to bus system, even if wherein bus system is subject to
Interference can also carry out almost error-free communication between remaining control device.
According to the present invention, described purpose is realized in the following way：In the state of bus system is disturbed, in parallel is total
The all-in resistance of line terminal resistance is approximately equal to the all-in resistance of the bus termination resistance in the case that bus system is undisturbed.This
Outward, termination should be interpreted as：The physics end of data circuit, is respectively equipped with for two sub-thread heart yearns of bus system in this case
One bus termination resistance, to prevent from reflecting.Here, bus termination resistance forms the input resistance of control device.Proposed
Solution advantageously：Although the bus system between remaining user is interfered, guarantee in bus
Sufficient communication in system, though what the availability of user was reduction of.
Advantageously, there is, in the case of the interruption of one of sub-thread heart yearn, the state that bus system is disturbed.This
In the case of interruption, the control device being connected only in bus system can not participate in communicating, and every other control device energy
Enough continue to communicate with one another.
In a design, the first control device is configured to the control device of higher level, the control device of described higher level
Control the second local control device and the 3rd local control device via home bus system.Especially only use on a small quantity having
In this Small-sized C AN bus system at family, can simply continue to controlling between user by undisturbed sub-thread heart yearn
Communication.Therefore, home bus system also continues to remain on, without disturbing the total data transmission of motor vehicle.
In variations, first control device of higher level is equipped with low ohm bus termination resistance, and local
The second control device and the 3rd local control device be equipped with the bus termination resistance of high ohm respectively.According in electricity in parallel
The physical rules of all-in resistance in road, the bus termination resistance of local high ohm of control device only indistinctively affects always electricity
Resistance.Therefore, it is able to maintain that the data transfer between control device with the ways and means being proposed, between described control device
There is not the interference of sub-thread heart yearn.
In one embodiment, the line length≤1m of bus system.Very short by applying in bus system
Data circuit, is reliably suppressed and applies reflection so that reliably ensure that the communication between bus user by other bus users.
In an improved form, the first control device is constituted for controlling vehicle transmission, and the second control sets
Standby and the 3rd control device is constituted for one automobile clutch of each control.Therefore, the described termination of bus system is outstanding
It can be used in the baroque unit with multiple control devices, and described control device is spatially arranged on this machine assembly
In.
In a design, the second local control device and the 3rd local control device are hydrostatic clutches
The part of actuator, wherein each local control device control a clutch of double-clutch speed changer.Set by this
Meter scheme, even if when bus system is disturbed, also maintenance runs the clutch of double-clutch speed changer.
Brief description
The present invention can have many embodiments.One of embodiment will be given by means of the accompanying drawing shown in accompanying drawing
To elaborate.
It illustrates：
Fig. 1 illustrates the schematic diagram of the dual-clutch transmission system in motor vehicle,
Fig. 2 illustrates the schematic diagram of the connection of the control device of the dual-clutch transmission system according to Fig. 1,
Fig. 3 illustrates the schematic diagram of the bus system being disturbed of the dual-clutch transmission system according to Fig. 1.
Identical feature is provided with identical reference.
Specific embodiment
The schematic diagram of the transmission system of the motor vehicle that figure 1 illustrates illustrates variator control arrangement 1, described motor vehicle
There is dual-clutch transmission, described variator control arrangement is arranged on clutch system higher level.Here, clutch system is configured to
Double clutch system and have two clutch actuators 2,3, wherein each clutch actuator 2,3 has automatic clutch
4th, 5, the locally-located clutch control device 6,7 having for controlling clutch 4,5 on described clutch.Set in each control
It is provided with bus termination resistance 1.1,6.1,7.1 in standby 1,6,7.Speed changer 8 together with two clutch actuators 2,3 together as
One component 9 is encased in motor vehicle.Here, variator control arrangement 1 is via connection cables 10 with transmission actuator 11 even
Connect.Transmission actuator 11 is equally fixedly mounted in speed changer 8.Additionally, variator control arrangement 1 and common vehicle
CAN 12 connects, and is also associated with other control devices of motor vehicle on described vehicle CAN bus, and such as engine controls
Unit 13.
Fig. 2 illustrates the connection of variator control arrangement 1 and clutch control device 6,7.By variator control arrangement 1 with from
The home bus system 14 that clutch control device 6,7 connects is by two sub-thread heart yearn CAN low and CAN high insulated from each other
Constitute.Here, the bus termination resistance 1.1 of variator control arrangement 1 includes the low ohm resistance value of such as 60 Ω.Clutch
The bus termination resistance 6.1,7.1 of control device 6,7 is configured to be high ohm, and each inclusion of bus termination resistance is about
The resistance value of 2.6k Ω.Due to line interruption, such as the sub-thread heart yearn CAN in the connection to second clutch control device 7
Line interruption occurs in high, now, the all-in resistance of parallel circuit is maintained at 60 Ω, because clutch control device 6,7 is total
Line terminal resistance 6.1,7.1 only slightly affects all-in resistance due to its high ohmic properties.Keep constant because this all-in resistance is approximate, extremely
Few communication between variator control arrangement 1 and clutch control device 6 can also be without being disturbed.
In accompanying drawing, the numerical value for 2.6k Ω of the bus termination resistance 6.1,7.1 of application is only exemplary, and represents
High ohmic value.Regulation for the resistance value for 60 Ω of the bus termination resistance 1.1 of control device 1 is also the regulation summarized.
Reference numerals list
1 variator control arrangement
1.1 bus termination resistance
2 clutch actuators
3 clutch actuators
4 clutches
5 clutches
6 clutch control devices
6.1 bus termination resistance
7 clutch control devices
7.1 bus termination resistance
8 speed changers
9 components
10 connection lines
11 transmission actuator
12 vehicle CAN bus
13 control unit of engine
14 local CAN
Claims (7)
1. a kind of termination to bus system, preferred pair is used for the termination using the bus system in double-clutch speed changer, its
In for the purpose communicating, by least two sub-thread heart yearn (CAN low；CAN high) the described bus system (14) that constitutes will
At least three control devices (1,6,7) are connected to each other, and wherein each control device (1,6,7) is equipped and has predetermined resistance value
Bus termination resistance (1.1,6.1,7.1), so that control device resistors match is in bus system resistance, wherein said bus termination
Resistance is connected in parallel to each other it is characterised in that in the state of described bus system (14) is disturbed, described bus termination in parallel is electric
The described bus that the all-in resistance of resistance (1.1,6.1,7.1) is approximately equal in the case that described bus system (14) is undisturbed is whole
The all-in resistance at end resistance (1.1,6.1,7.1).
2. termination according to claim 1 is it is characterised in that in described sub-thread heart yearn (CAN low；CAN high) in
There is, in the case of interrupting, the state that described bus system (14) is disturbed in one sub-thread heart yearn.
3. termination according to claim 1 and 2 is it is characterised in that the control that the first control device (1) is configured to higher level sets
Standby, the control device of described higher level controls the second local control device and local via local described bus system (14)
3rd control device (6,7).
4. termination according to claim 3 is it is characterised in that described first control device (1) of higher level is equipped with low Europe
The bus termination resistance (1.1) of nurse, and local described second control device and local described 3rd control device (6,7) point
It is not equipped with the bus termination resistance (6.1,7.1) of high ohm.
5. the termination according to any one of the claims is it is characterised in that the circuit of described bus system (14) is long
Degree≤1m.
6. the termination according to any one of the claims is it is characterised in that described first control device (1) constitutes use
In control vehicle transmission (8), and described second control device and described 3rd control device (6；7) constitute for each control
One automobile clutch (4,5) of system.
7. termination according to claim 6 is it is characterised in that local described second control device and local described the
Three control devices (6；7) be hydrostatic clutch actuator part, wherein each local control device (6；7) control
One clutch (4,5) of described double-clutch speed changer.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014210698.2 | 2014-06-05 | ||
| DE102014210698.2A DE102014210698A1 (en) | 2014-06-05 | 2014-06-05 | Termination of a bus system, preferably for use in a dual-clutch transmission |
| PCT/DE2015/200338 WO2015185057A1 (en) | 2014-06-05 | 2015-06-02 | Termination of a bus system, preferably for use in a dual clutch transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106464560A true CN106464560A (en) | 2017-02-22 |
| CN106464560B CN106464560B (en) | 2020-03-17 |
Family
ID=53610735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580029264.2A Active CN106464560B (en) | 2014-06-05 | 2015-06-02 | Bus system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106464560B (en) |
| DE (2) | DE102014210698A1 (en) |
| WO (1) | WO2015185057A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102018205217A1 (en) | 2018-04-06 | 2019-10-10 | Robert Bosch Gmbh | Circuit for a bus system and method for operating a circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798895B1 (en) * | 1996-03-26 | 2002-09-25 | DaimlerChrysler AG | Integrated circuit for coupling a microcontrolled controlling device to a two-wire bus |
| CN202089006U (en) * | 2011-05-31 | 2011-12-28 | 东风汽车有限公司 | Automobile controller LAN pencil structure |
| CN102854850A (en) * | 2011-06-28 | 2013-01-02 | 通用汽车环球科技运作有限责任公司 | Message transmission control systems and methods |
| CN202901263U (en) * | 2012-10-22 | 2013-04-24 | 上海圣阑实业有限公司 | Dual-clutch gear shifter control device based on switch-type Hall sensor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102575729B (en) | 2009-10-29 | 2015-11-25 | 舍弗勒技术股份两合公司 | hydrostatic actuator |
| DE102012218252B4 (en) | 2011-10-24 | 2023-11-02 | Schaeffler Technologies AG & Co. KG | Method for starting up a vehicle transmission and/or a vehicle clutch |
| DE102012008408A1 (en) * | 2012-04-27 | 2013-10-31 | Wabco Gmbh | Connection device for data communication between two vehicles |
-
2014
- 2014-06-05 DE DE102014210698.2A patent/DE102014210698A1/en not_active Withdrawn
-
2015
- 2015-06-02 DE DE112015002656.8T patent/DE112015002656A5/en active Pending
- 2015-06-02 WO PCT/DE2015/200338 patent/WO2015185057A1/en active Application Filing
- 2015-06-02 CN CN201580029264.2A patent/CN106464560B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0798895B1 (en) * | 1996-03-26 | 2002-09-25 | DaimlerChrysler AG | Integrated circuit for coupling a microcontrolled controlling device to a two-wire bus |
| CN202089006U (en) * | 2011-05-31 | 2011-12-28 | 东风汽车有限公司 | Automobile controller LAN pencil structure |
| CN102854850A (en) * | 2011-06-28 | 2013-01-02 | 通用汽车环球科技运作有限责任公司 | Message transmission control systems and methods |
| CN202901263U (en) * | 2012-10-22 | 2013-04-24 | 上海圣阑实业有限公司 | Dual-clutch gear shifter control device based on switch-type Hall sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015185057A1 (en) | 2015-12-10 |
| DE112015002656A5 (en) | 2017-02-23 |
| CN106464560B (en) | 2020-03-17 |
| DE102014210698A1 (en) | 2015-12-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3255519B1 (en) | Laboratory sample distribution system and method of operating a laboratory sample distribution system | |
| CN107113181B (en) | Input/output module for a bus system | |
| KR101974713B1 (en) | Power over data lines system with redundant power connections | |
| US8049510B2 (en) | Method for detecting a fault on a data line | |
| EP2726997B1 (en) | Broadcast serial bus termination | |
| KR20160023616A (en) | 1-WIRE BUS PD DETECTION AND CLASSIFICATION SCHEME FOR ETHERNET PoDL | |
| CN101129036B (en) | Transceiver with adjustable terminal network for a control device | |
| US7652444B2 (en) | Actuator and method for operating an actuator | |
| KR20030030012A (en) | System and method for transmission-line termination by signal cancellation, and applications thereof | |
| CN105718409B (en) | Pin-configurable internal bus termination system | |
| JPWO2015025518A1 (en) | Feed path switching circuit, branching device, submarine cable system, and feed path switching method | |
| CN103259704A (en) | CAN bus data transceiver | |
| CN107820691B (en) | Bus system comprising a feed module and a load module | |
| US8010811B2 (en) | Power controller coupling assemblies and methods | |
| CN106464560A (en) | Termination of bus system, preferably for use in dual clutch transmission | |
| US6404326B1 (en) | Redundant power communications circuit | |
| US7352282B2 (en) | Communication system | |
| KR101384639B1 (en) | Can communication system including a plurality of can bus and connecting device | |
| JP2015053633A (en) | Communication system | |
| CN104506400A (en) | Wiring method for improving reliability of controller area network (CAN) bus and CAN bus system | |
| CN109274615B (en) | Bus signal reflection suppression method, device and system and control circuit | |
| US10484047B2 (en) | Changing between segments of a network | |
| CN104102184A (en) | Control system | |
| CN105182805A (en) | Configurable Integrated Circuit, Control Device And Method For Configuring Same | |
| JP2014199988A (en) | Termination circuit, connector, and on-vehicle controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |