CN203958044U - A kind of electrical control unit equipment - Google Patents
A kind of electrical control unit equipment Download PDFInfo
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- CN203958044U CN203958044U CN201420108511.0U CN201420108511U CN203958044U CN 203958044 U CN203958044 U CN 203958044U CN 201420108511 U CN201420108511 U CN 201420108511U CN 203958044 U CN203958044 U CN 203958044U
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Abstract
The utility model discloses a kind of electrical control unit equipment, this equipment comprises: the car body controller that CAN bus, LIN bus, the interface arranging by self are connected with CAN bus and LIN bus respectively and each electronic control unit being connected with CAN bus or LIN bus.The complexity connecting up that the utility model has adopted Techniques For Reducing that CAN bus combines with LIN bus, makes can communicate by letter between each electronic control unit, has realized information sharing, and has improved vehicle allomeric function.
Description
Technical field
The utility model relates to field of automobile control, relates in particular to a kind of electrical control unit equipment.
Background technology
Electrical control unit equipment is mainly used in strengthening safety, traveling comfort and the safety of automobile.Car body controller (Body Control Module, BCM) control technology has three kinds of modes: distributing, centralized and distributed.Not communication between each electronic control unit (ECU) in distributing BCM, is not easy to the lifting of information sharing and function, cannot realize powerful control function, and increases or change ECU and can increase cost, and therefore this BCM is out-of-date.The PCB design of centralized BCM is very complicated, need many wirings, and circuit card power consumption is very large, is difficult for cooling.And distributed BCM also needs a large amount of PCB circuit cards, the complexity that this also makes system architecture become in raising the cost.
But because increasing body electronics equipment is applied at vehicle body, therefore the object that BCM need to control is more and more, and the function of each electronic machine is more and more, the information sharing between each electronic machine is more and more, and this requires the data communication function of BCM more and more stronger.Single centralized BCM has been difficult to more and more huger function, makes bus type, networking BCM become development tendency.
Owing to there is no communication capacity between the ECU in centralized BCM, and distributed BCM cost is too high, therefore need a kind of by the electrical control unit equipment of the two integration, to reach performance boost and don't to increase the object of too many cost.
Utility model content
One of technical problem to be solved in the utility model is that a kind of electrical control unit equipment need to be provided, and it is for possess the mixing control convenience of two kinds of bus communication abilities simultaneously.
In order to solve the problems of the technologies described above, the utility model provides a kind of electrical control unit equipment, comprising: CAN bus; LIN bus; Car body controller, its interface arranging by self is connected with described CAN bus and LIN bus respectively; Multiple electronic control units, each electronic control unit is connected with described CAN bus or described LIN bus.
In one embodiment, the electronic control unit of transfer rate within the scope of First Speed is connected with LIN bus; The electronic control unit of transfer rate within the scope of second speed is connected with CAN bus.
In one embodiment, described First Speed scope is 1Kbp/s-20Kbp/s, and described second speed scope is 125Kbp/s-1Mbp/s.
In one embodiment, the built-in gateway device of described car body controller.
In one embodiment, the quantity of described CAN bus is 2, be respectively vehicle body CAN bus and power CAN bus, wherein, the electronic control unit being connected with vehicle body CAN bus comprises: passively enter start unit and electronic anti-theft unit without key, the electronic control unit being connected with power CAN bus comprises: electric boosted pilot unit, safety air bag, ABS (Anti-lock Braking System) unit and ignition control unit.
In one embodiment, every CAN bus all has high-speed CAN transmission line and low speed CAN transmission line.
In one embodiment, the electronic control unit being connected with described LIN bus comprises: front windscreen wiper control unit and lighting control unit.
In one embodiment, described front windscreen wiper control unit further comprises: front windscreen wiper driver element and the front rain shaving electrical machine being connected with this front windscreen wiper driver element.
In one embodiment, also comprise: power supply device, the PMU that described power supply device has two supply accesses in parallel and connects with the supply access of described parallel connection, wherein, described PMU is connected with described car body controller.
Compared with prior art, one or more embodiment of the present utility model can have the following advantages by tool:
The built-in gateway of car body controller in the utility model, cancel the stand-alone development of gateway, save cost of development, the complexity connecting up that adopted Techniques For Reducing that CAN bus combines with LIN bus, make can communicate by letter between each electronic control unit, realized information sharing, and improved vehicle allomeric function, PMU adopts two paths, greatly reduces the power down probability of vehicle car body controller in driving.
Other features and advantages of the utility model will be set forth in the following description, and, partly from specification sheets, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in specification sheets, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide further understanding of the present utility model, and forms a part for specification sheets,, does not form restriction of the present utility model jointly for explaining the utility model with embodiment of the present utility model.In the accompanying drawings:
Fig. 1 is according to the configuration diagram of the electrical control unit equipment of the utility model one example;
Fig. 2 is according to the structural representation of the front windscreen wiper control unit of the utility model one embodiment;
Fig. 3 is according to the schematic diagram of the power supply device of the electrical control unit equipment of the utility model one embodiment.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
Figure 1 shows that according to the configuration diagram of the electrical control unit equipment of the utility model one example.
As can be seen from Figure 1, this electrical control unit equipment mainly comprises CAN bus, LIN bus, car body controller 1, each electronic control unit of being connected with CAN bus or LIN bus respectively, wherein, the interface (not shown) that car body controller 1 arranges by himself is connected with CAN bus and LIN bus.
The ECU that LIN bus ECU(is connected with LIN bus and then communicates by letter with car body controller 1) ECU that is connected with CAN bus and then communicates by letter with car body controller 1 with CAN bus ECU() communicate by Vehicle Body Bus, realize the information sharing between different ECU.In addition, the time-sharing multiplex of bus, makes the fewer but better refining of wire harness in vehicle body, has reduced the complexity of wiring.
It should be noted that the electronic control unit of transfer rate within the scope of First Speed is connected with LIN bus; The electronic control unit of transfer rate within the scope of second speed is connected with CAN bus, and wherein, the maxim of First Speed scope is less than the minimum value of second speed scope.Such as, First Speed scope is 1Kbp/s-20Kbp/s, and second speed scope is 125Kbp/s-1Mbp/s, in this electrical control unit device, the speed of transmission of LIN bus is 19.2Kbit/S, the speed of transmission of CAN bus is 500Kbit/s.
Understandably, above-mentioned speed range is only an example, and those skilled in the art can adjust above-mentioned speed range as required.
The quantity of the CAN bus of the present embodiment is 2, is respectively vehicle body CAN bus and power CAN bus.Wherein, vehicle body CAN bus, for drive system, has higher data rate.The ECU being connected with vehicle body CAN bus comprises and passively enters start unit (PEPS) 9 and electronic anti-theft unit (IMMO) 10 etc. without key.And the ECU being connected with power CAN bus comprises such as electric boosted pilot unit (EPS) 5, safety air bag (SRS) 6, ABS (Anti-lock Braking System) unit (ABS) 7 and ignition control unit (ICM) 8 etc.
In addition, every CAN bus all has high-speed CAN transmission line and low speed CAN transmission line, and CAN bus is transmitted data in the mode of differential signal.
For CAN bus, in the time having data to transmit in CAN bus, each ECU need to carry out data receiver according to self, and received data are carried out data processing and sent control command.Any one ECU in electrical control unit equipment all can be at any time on one's own initiative to sending information with other ECU of CAN bus communication, and regardless of principal and subordinate, signalling methods is flexible.In addition, the ECU information in CAN bus can be divided into different priority, can meet different requirement of real times, and, in the time that two ECU transmit information to CAN bus simultaneously, the ECU that priority is low initiatively stops data and sends, and the high ECU of priority can continue to transmit data insusceptibly.
LIN bus is based on host-guest architecture, and it uses single-wire communication, has further reduced weight and the expense of a large amount of wire harness.LIN bus is applicable to idling slow speed system, not needing bandwidth and the multi-functional occasion of CAN bus, such as the communication between intelligent transducer and brake equipment, uses LIN bus can greatly save cost.
As shown in Figure 1, the ECU being connected with LIN bus comprises: front windscreen wiper control unit 2 and lighting control unit 4.Car body controller 1 sends control command to the ECU being connected with LIN bus, thus the state of these ECU of timing acquisition.
Fig. 2 is according to the structural representation of the front windscreen wiper control unit 2 of the utility model one embodiment.As shown in Figure 2, front windscreen wiper control unit 2 further comprise front windscreen wiper driver element 20 with the front rain shaving electrical machine 23 being connected with this driver element 20.Particularly, front windscreen wiper driver element 20 further comprises: drive chip 21 and relay 22.Between battery and driving chip 21, be provided with wire fuse 26, to ensure power supply safety, relay 22 can be isolated the slowspeed machine coil 24 and high-speed electric expreess locomotive coil 25 of front windscreen wiper, to avoid anti-filling of high-voltage pulse to damage driving chip 21.
Be appreciated that LIN bus transceiver and CAN bus transceiver receive bus message and pass to center processor (MCU), MCU sends and refers to that the relevant chip of modern driving drives its corresponding terminator according to message request.
In the present embodiment, except head light cleaning, ECU(is not shown), the output of other ECU all exports to drive corresponding terminator by chip.Because chip has the diagnosis function of excess temperature, overcurrent, load open circuit and load short circuits, therefore the diagnostic result of this ECU output has higher reliability.
In addition, Fig. 3 is according to the schematic diagram of the power supply device of the electrical control unit equipment of the utility model one embodiment.As shown in Figure 3, this power supply device has the PMU 11 that two supply accesses in parallel and the supply access in parallel with this are connected.Wherein, PMU 11 is further connected with car body controller 1.Article two, the employing of supply access make in the time of a supply access et out of order (such as, wire fuse 30 disconnects), can be by another supply access to car body controller 1 supply of electrical energy.This power backup capability greatly reduces the power down probability of vehicle car body controller 1 in driving.
It should be noted that the built-in gateway device of car body controller 1, this gateway device is for forwarding message and the data of vehicle body CAN bus and power CAN bus.Owing to not needing the stand-alone development of gateway, time-to-market and cost of development are therefore saved, for the arrangement of other parts provides more space.
In sum, the complexity connecting up that the electrical control unit equipment of the present embodiment has adopted Techniques For Reducing that CAN bus combines with LIN bus, the built-in gateway of car body controller, cancel the stand-alone development of gateway, saved cost of development, between each electronic control unit, can communicate by letter, realize information sharing, allomeric function gets a promotion, and PMU adopts two paths, greatly reduces the power down probability of vehicle car body controller in driving.
The above; it is only concrete case study on implementation of the present utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in specification described in the utility model; to amendment of the present utility model or replacement, all should be within protection domain of the present utility model.
Claims (8)
1. an electrical control unit equipment, comprising:
CAN bus;
LIN bus;
Car body controller, its interface arranging by self is connected with described CAN bus and LIN bus respectively;
Multiple electronic control units, each electronic control unit is connected with described CAN bus or described LIN bus;
Power supply device, the PMU that described power supply device has two supply accesses in parallel and connects with the supply access of described parallel connection, wherein, described PMU is connected with described car body controller.
2. electrical control unit equipment according to claim 1, is characterized in that,
The electronic control unit of transfer rate within the scope of First Speed is connected with LIN bus;
The electronic control unit of transfer rate within the scope of second speed is connected with CAN bus.
3. electrical control unit equipment according to claim 2, is characterized in that, described First Speed scope is 1Kbp/s-20Kbp/s, and described second speed scope is 125Kbp/s-1Mbp/s.
4. electrical control unit equipment according to claim 1, is characterized in that,
The built-in gateway device of described car body controller.
5. electrical control unit equipment according to claim 4, is characterized in that,
The quantity of described CAN bus is 2, is respectively vehicle body CAN bus and power CAN bus,
Wherein, the electronic control unit being connected with vehicle body CAN bus comprises: passively enter start unit and electronic anti-theft unit without key, the electronic control unit being connected with power CAN bus comprises: electric boosted pilot unit, safety air bag, ABS (Anti-lock Braking System) unit and ignition control unit.
6. electrical control unit equipment according to claim 5, is characterized in that,
Every CAN bus all has high-speed CAN transmission line and low speed CAN transmission line.
7. electrical control unit equipment according to claim 1 and 2, is characterized in that,
The electronic control unit being connected with described LIN bus comprises: front windscreen wiper control unit and lighting control unit.
8. electrical control unit equipment according to claim 7, is characterized in that,
Described front windscreen wiper control unit further comprises: front windscreen wiper driver element and the front rain shaving electrical machine being connected with this front windscreen wiper driver element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108511.0U CN203958044U (en) | 2014-03-11 | 2014-03-11 | A kind of electrical control unit equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420108511.0U CN203958044U (en) | 2014-03-11 | 2014-03-11 | A kind of electrical control unit equipment |
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| CN203958044U true CN203958044U (en) | 2014-11-26 |
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| CN201420108511.0U Expired - Lifetime CN203958044U (en) | 2014-03-11 | 2014-03-11 | A kind of electrical control unit equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338300A (en) * | 2016-09-27 | 2017-01-18 | 北京公共交通控股（集团）有限公司 | Comprehensive test apparatus and test method for electronic Instrument and bus module of trolleybus |
-
2014
- 2014-03-11 CN CN201420108511.0U patent/CN203958044U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106338300A (en) * | 2016-09-27 | 2017-01-18 | 北京公共交通控股（集团）有限公司 | Comprehensive test apparatus and test method for electronic Instrument and bus module of trolleybus |
| CN106338300B (en) * | 2016-09-27 | 2020-03-03 | 北京公共交通控股（集团）有限公司 | Comprehensive detection equipment and detection method for electronic instrument and bus module of trolley bus |
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| C14 | Grant of patent or utility model | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 570216 Jinniu Road No. 2-8, Jinpan Industrial Development Zone, Haikou, Hainan Patentee after: Hainan Haima Automobile Co.,Ltd. Address before: 570216 Jinniu Road No. 2-8, Jinpan Industrial Development Zone, Haikou, Hainan Patentee before: FAW HAIMA AUTOMOBILE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |
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| CX01 | Expiry of patent term |