CN201194397Y - Automobile communication system - Google Patents
Automobile communication system Download PDFInfo
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- CN201194397Y CN201194397Y CNU2008200348429U CN200820034842U CN201194397Y CN 201194397 Y CN201194397 Y CN 201194397Y CN U2008200348429 U CNU2008200348429 U CN U2008200348429U CN 200820034842 U CN200820034842 U CN 200820034842U CN 201194397 Y CN201194397 Y CN 201194397Y
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- 238000004891 communication Methods 0.000 title claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 abstract description 16
- 238000005457 optimization Methods 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
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Abstract
This utility model discloses a device comprising a signal conversion module, an anti-blocking controller, a gear-box control module, a data transmission line controller, a body controller, an instrument controller and a motor control module; the characteristic lies in that the signal conversion module, the anti-blocking controller, the gear-box control module, the data transmission line controller, the body controller, the instrument controller and motor control module are mutually connected through a high-speed CAN bus. The device has the following advantages by adopting the structure above: 1. saving the gateway of the CAN communication system of the traditional car, improving the reliability of the network, lowering the cost; 2, reducing the signal transmission time and advancing the immediacy of the network as a result of directly changing information between the dynamic system and the body control system; 3, realizing the optimization and share of the source, reducing the weight of the whole vehicle wiring to lower the quality of the whole vehicle, improving the control performance.
Description
Technical field
The utility model relates to the network-bus communication aspect in automotive automation field, particularly a kind of automobile communication system.
Background technology
CAN BUS is one of most widely used controller communication bus on the automobile as the guardian technique of electronic network system integration.Just as the usefulness of the controller communication in the automotive environment, exchange message between vehicle-mounted each electronic-controlled installation forms the Vehicle Electronic Control network during CAN-BUS initial designs.
As shown in Figure 1 in traditional automotive networking, be to prevent embracing locked controller (2), gearbox control module (3), engine control module (7) is integrated in the high-speed CAN network (8), and signal conversion module (1), transfer of data lane controller (4), car body controller (5), instrument controller (6) is integrated in the low speed CAN network (9), and two networks carry out the information transmission by gateway (10), thereby finish information exchange.
Such scheme is many for node, and the medium-to-high grade car that contains much information can well reduce the offered load rate, and the performance that improves car load is very effective.But the vehicle few for node, that the quantity of information requirement is less relatively, the cost of low speed node will be higher than the high speed node, and increase a gateway node, the cost of car load is increased greatly, pass through gateway passes between high slow network, cause message transmission to lag behind, reduced real-time.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of automobile-used CAN communication system, to reach the gateway of saving CAN communication system in the orthodox car, the reliability and the real-time of raising network, the simplification of transmission wire harness, the purpose of raising handling.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of automobile communication system comprises engine control module, the gearbox control module, car body controller, transfer of data lane controller, instrument controller, anti-locked controller, the signal conversion module of embracing; It is characterized in that: engine control module, the gearbox control module, car body controller, the transfer of data lane controller, instrument controller, anti-armful locked controller, signal conversion module is connected to each other by high-speed CAN bus.
A kind of automobile communication system is characterized in that: be provided with terminal resistance in engine control module and the instrument controller.
A kind of automobile communication system, it is characterized in that: engine control module and instrument controller are arranged in the two ends of high-speed CAN bus.
A kind of automobile communication system, owing to adopted said structure, this system has the following advantages:
1, saves the gateway of orthodox car CAN communication system, improved the reliability of network, reduced cost;
2, because dynamical system and the direct exchange message of body control system have reduced signal transmission time, improved the real-time of network; 3, realize the optimization of resource and sharing, thereby the weight that has reduced the car load wire harness has reduced the quality of car load, has improved handling.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is orthodox car communication network topology structure figure;
Fig. 2 is a kind of automobile communication grid of the utility model topology diagram;
In Fig. 1, Fig. 2,1, signal conversion module; 2, anti-armful locked controller; 3, gearbox control module; 4, transfer of data lane controller; 5, car body controller; 6, instrument controller; 7, engine control module, 8, high-speed CAN; 9, low speed CAN; 10, gateway.
Embodiment
As shown in Figure 2, have 7 modules and bus communication in a kind of automobile communication system the utility model structure.For performance and the stability of network that improves bus, terminal resistance generally all designs at distance two nodes farthest, in native system, engine control module and instrument controller are in the two ends of network-bus, so terminal resistance is designed in these two nodes.
This programme adopts the transmission means of the Carrier Sense Multiple Access of collision detection.The CAN communication system adopts the transmission matrix of defined Frame in the subordinate list.The ID of Frame has defined the address of each Frame on the network, depends on the importance of Frame, the real-time of transmission information, the capacity of transmission information, numerous factors such as load factor of network, and the ID of the Frame of this programme definition is shown in the 1st row in the subordinate list.
The distribution of Frame ID needs planning carefully, and the ID of Frame is more little, and the priority of this Frame is high more, so must come the ID of definition of data frame according to the concrete function control strategy of car load.The following preferential sequence of events of the ID distribution design of this programme (priority is arranged from high to low):
Engine torque management dependent event;
Engine speed, running dependent event;
Braking system dependent event, torque request;
Transmission system dependent event, torque request;
Dependent events such as air-conditioning, compressor request;
The car body control module dependent event;
Back car body control module dependent event;
Speed of a motor vehicle relevant information;
Mileage, mileage short biography relevant information;
Engine configurations information;
The gearbox configuration information;
Diagnostic message;
The period definition of Frame the transmission cycle of each Frame on the network, according to the importance of Frame, the real-time of transmission information, the capacity of transmission information, numerous factors such as load factor of network, the ID of the Frame of this programme definition is shown in the 1st row in the subordinate list.
The length of Frame has defined the size of each Frame on the network, and this programme is regardless of the size of information transmitted on actual each Frame, and the length of each Frame may be 64Bits or 32Bits only, for reserved place, all puts 0.
The accepted defined matrix transmission of each Frame of Frame and the control module of reception, on the basis of considering numerous factors such as Frame ID, Frame cycle, information content for transmission, offered load, the matrix of this programme of definition is as shown in subordinate list.The TX representative sends in subordinate list, and RX represents reception.
Subordinate list
| ID | The communication title | Type | Cycle (mSec.) | Size (bits) | Engine control module | Signal conversion module | Car body controller | Instrument controller | Anti-armful locked controller | Gearbox control | |
| $FA | Engine control information-00 | |
10 | 64 | TX | RX | RX | ||||
| $1AE | The moment of torsion control information | P | 20 | 64 | RX | RX | TX | ||||
| $270 | Engine control information-01 | |
10 | 64 | TX | RX | |||||
| $278 | Engine control information-02 | |
10 | 64 | TX | RX | RX | ||||
| $2E9 | The abs controller state information | P | 50 | 64 | RX | RX | TX | ||||
| $300 | The gearbox state information | P | 60 | 64 | RX | RX | TX | ||||
| $310 | Abs controller wheel | P | 10 | 64 | RX | RX | TX | ||||
| $370 | Engine control information-03 | |
10 | 64 | TX | RX | |||||
| $378 | Engine control information-04 | |
10 | 64 | TX | RX | |||||
| $391 | Body Control information-01 | P | 20 | 64 | TX | RX | |||||
| $398 | Body Control information-02 | P | 20 | 64 | TX | RX | |||||
| $430 | Instrument controller information | P | 20 | 64 | RX | RX | TX | ||||
| $452 | The information that instrument controller is reported to the police | P | 100 | 64 | TX | RX | |||||
| $623 | Engine control information-05 | P | 1000 | 64 | TX | RX | RX | ||||
| $330 | Conversion of signals information | P | 20 | 32 | RX | TX |
The automobile CAN communication system of this programme, adopt single high-speed CAN system to come the unify control module of body control system of integrated powertrain, change by above-described network topology structure, the ID of Frame, cycle, transmission matrix precise design, offered load rate and control requirement have been satisfied, increase the expansibility of system, reduced cost simultaneously, improved performance.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technical scheme to carry out; or directly apply to other occasion without improvement, all within protection range of the present utility model.
Claims (3)
1. automobile communication system, comprise signal conversion module (1), the anti-locked controller (2) of embracing, gearbox control module (3), transfer of data lane controller (4), car body controller (5), instrument controller (6), engine control module (7), high-speed CAN (8) is characterized in that: described signal conversion module (1), the anti-locked controller (2) of embracing, gearbox control module (3), transfer of data lane controller (4), car body controller (5), instrument (6), engine control module (7) interconnects by high-speed CAN bus (8).
2. a kind of automobile communication according to claim 1 system is characterized in that: be provided with terminal resistance in engine control module (7) and the instrument controller (6).
3. a kind of automobile communication according to claim 1 system, it is characterized in that: engine control module (7) and instrument controller (6) are arranged in the two ends of high-speed CAN bus (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200348429U CN201194397Y (en) | 2008-04-24 | 2008-04-24 | Automobile communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200348429U CN201194397Y (en) | 2008-04-24 | 2008-04-24 | Automobile communication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201194397Y true CN201194397Y (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200348429U Expired - Lifetime CN201194397Y (en) | 2008-04-24 | 2008-04-24 | Automobile communication system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559746B (en) * | 2009-06-01 | 2010-11-17 | 奇瑞汽车股份有限公司 | Fault diagnosis system of automobile steer-by-wire system |
| CN102320274A (en) * | 2011-07-08 | 2012-01-18 | 上海沪工汽车电器有限公司 | 24V system body control module (BCM) based on controller area network (CAN) bus |
| CN105501156A (en) * | 2016-01-22 | 2016-04-20 | 蔚来汽车有限公司 | Automotive electrical system and isolation system for same |
| CN108068733A (en) * | 2017-12-18 | 2018-05-25 | 奇瑞汽车股份有限公司 | Information configuring methods, device and computer readable storage medium |
-
2008
- 2008-04-24 CN CNU2008200348429U patent/CN201194397Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101559746B (en) * | 2009-06-01 | 2010-11-17 | 奇瑞汽车股份有限公司 | Fault diagnosis system of automobile steer-by-wire system |
| CN102320274A (en) * | 2011-07-08 | 2012-01-18 | 上海沪工汽车电器有限公司 | 24V system body control module (BCM) based on controller area network (CAN) bus |
| CN105501156A (en) * | 2016-01-22 | 2016-04-20 | 蔚来汽车有限公司 | Automotive electrical system and isolation system for same |
| CN108068733A (en) * | 2017-12-18 | 2018-05-25 | 奇瑞汽车股份有限公司 | Information configuring methods, device and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090211 |
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| CX01 | Expiry of patent term |