CN205871957U - CAN bus automobile body switch integrated control system - Google Patents
CAN bus automobile body switch integrated control system Download PDFInfo
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- CN205871957U CN205871957U CN201620857163.6U CN201620857163U CN205871957U CN 205871957 U CN205871957 U CN 205871957U CN 201620857163 U CN201620857163 U CN 201620857163U CN 205871957 U CN205871957 U CN 205871957U
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Abstract
The utility model discloses a CAN bus automobile body switch integrated control system, this CAN bus automobile body switch integrated control circuit mainly comprise switch button sampling module, MCU controller, power conversion module, CAN bus transceiver module, state indicating module, mains voltage detection module, core MCU controller passes through detection switch key signal, and the encode operation is finally with CAN bus data's mode output, and the operation of relevant unit is carried out after receiving CAN bus data to other controllers of automobile body (like BCM), and corresponding work pilot lamp is lighted through core MCU controller to the work pilot lamp signal of the corresponding switch of sent simultaneously. The utility model relates to a CAN bus automobile body switch integrated control system has integrateed the automobile body great majority and about comfortable and the little switch security function, has saved whole fare and restrainted, has realized the failure diagnosis in the switch key signal communication process, very big improvement the security of automobile body operation. Simultaneously can also carry out extensions according to user's demand, optimize the interior trim overall arrangement of whole car, jian is complete, comfortable, beautifully in an organic whole.
Description
Technical field
This utility model is under the jurisdiction of electrical control unit technical field.This CAN vehicle body switch integrated control system master
Will be by switch key sampling module, MCU controller, power transfer module, CAN transceiver module, state indicator module, power supply
Voltage detection module forms, the multiple little ON-OFF control circuit of integrated vehicle body by the way of CAN transmission data, optimizes vehicle body
Interior trim layout, improves the safety of the little switching function of vehicle body.
Technical background
Along with the development of national economy, the living standard of people improves constantly, and the continuous progress of science and technology.Family
The price using car is more and more lower, and the cost control of car load requires more and more stricter.People are more desirable to buy price just
Preferably, functional safety, comfortable car.The little switch of vehicle body is that automotive trim controls control unit main in platform, is vehicle body
The important component part of control system.The cost controlling the little switch of vehicle body the most how, optimizes being laid out in of the little switch of car load
The matter of utmost importance that have to consider for each automobile main frame maker.
At present, the little switch of vehicle body mainly carries out fuction output by the way of rigid line.Wherein the rigid line way of output has two
Kind, one is directly to be provided car body control module (such as BCM) earth signal or power supply signal by wire harness, inside car body control module
MCU carry out sampling judge.Another is to provide car body control module (such as BCM) to carry out A/D by the way of output of resistance
Sampling.No matter use that mode to export, be all not fee to devote a tremendous amount of time and consider the layout of little switch and same car load
The cooperation of structural plane.The little switch of the most multiple rigid lines output brings the substantial amounts of rat tail of interior of body, adds wire harness
Cost and the cost of wire harness layout.Too much rat tail brings hidden danger also to the control function of switch.Vehicle body switchs very
Easily because wire harness overlap joint is bad or wire harness is aging loses function or dysfunction.Opening of the most substantial amounts of rigid line output type
Pass too increases the design cost of car body control module (such as BCM).Car body control module have to provide multiple Data Detection I/O
Eloquence can meet functional requirement, is unfavorable for the control of integral vehicle cost.
Therefore, utilize the control function of the CAN little switch of Integration ofTechnology vehicle body, applied and develop.CAN
The push button signalling of multiple little switches and relay indicating light signal can be entered by technology by the core MCU controller of switch internal
Row coding output, performs the operation of correlation unit simultaneously, sends answer number after car body control module (such as BCM) receives coding
According to switch internal core MCU controller, light work instruction.CAN technology is utilized to have only to use two single data buses
The function of tens even tens wire harness of the rigid line way of output can be realized.Can be effectively improved car load safety,
Comfortableness, considerably reduces the car load cost about little switching control section.
Summary of the invention
The purpose of this utility model is the shortcoming that the customer service little switch of current most of vehicle bodies is exported by rigid line.One is provided
CAN vehicle body switch integrated control system.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of CAN vehicle body switch integrated control system, is characterized in that: include switch key module, switch output mould
Block, MCU controller, power transfer module, CAN transceiver module, state indicator module, supply voltage detection module；
The annexation of described CAN vehicle body switch integrated control system is: the output of switch key module is connected to
The control signal input of MCU controller；The input of state indicator module connects the status signal output of MCU controller；CAN
The input of bus transceiver module is connected to the CAN network of car load, and its outfan is connected to the data receiver of MCU controller
With transmission port；The input of state indicator module is connected to the first output port of MCU controller；Supply voltage detection module
Outfan be connected to the A/D sample port of MCU controller；Second output port of MCU controller is connected to switch output mould
The control signal input of block；The input of power transfer module is connected to the power end of car load, and its output is connected to above-mentioned all
The power voltage input terminal of module.
Described power transfer module, is characterized in that: include Transient Suppression Diode DZ1, electric capacity C2, electric capacity C3, electric capacity
C4, diode D1, transistor Q1, electric capacity C5, the first electrochemical capacitor EC1, three-terminal voltage-stabilizing chip U1, the second electrochemical capacitor EC2, electricity
Hold C6, electric capacity C7, transistor Q2, diode D2, diode D3, diode D4, resistance R3, resistance R4, resistance R5, resistance R6 and
Electric capacity C8；
The annexation of described power transfer module is: described Transient Suppression Diode DZ1 is with described electric capacity C2, electric capacity
C3, electric capacity C4 parallel connection are between the supply voltage and ground；The anode of described diode D1 connects supply voltage, and negative electrode connects transistor
The emitter stage of Q1；The colelctor electrode of described transistor Q1 is connected to the input of three-terminal voltage-stabilizing chip U1, the collection of described transistor Q1
Electrode is also connected to described electric capacity C5 and the anode of the first electrochemical capacitor EC1；Described electric capacity C5's and the first electrochemical capacitor EC1 is negative
End ground connection；
The outfan of described three-terminal voltage-stabilizing chip U1 is just being connected to described second electrochemical capacitor EC2, electric capacity C6, electric capacity C7
End；The earth terminal of described three-terminal voltage-stabilizing chip U1, the second electrochemical capacitor EC2, electric capacity C6, the negativing ending grounding of electric capacity C7；
The base stage of described transistor Q1 is connected with the colelctor electrode of described transistor Q2, and the emitter stage of described transistor Q2 connects
Ground；The base stage of described transistor Q2 is connected to diode D3 and the negative electrode of diode D2；The anode of described diode D3 is connected to
The anode of described diode D4 and the anode of described resistance R5；The anode of described diode D3 be also connected to described electric capacity C8,
Resistance R3, the anode of resistance R4；The negative electrode of described diode D4 connects the outfan of power-switching circuit；Described resistance R5, electric capacity
The negativing ending grounding of C8；The negative terminal of described resistance R4 connects input supply voltage；The negative terminal of described resistance R3 is connected to MCU controller
The first power voltage input terminal；The anode of described diode D2 is connected to the anode of described resistance R6, and described resistance R6's is negative
End is connected to the second source voltage input end of core MCU controller.
Described CAN transceiver module, is characterized in that: include that resistance R7, resistance R8, electric capacity C9, CAN receive and dispatch core
Sheet, accurate inductance L1, electric capacity C10, electric capacity C11, electrostatic defending diode D5, electrostatic defending diode D6, resistance R9, resistance
R10, electric capacity C21；
The annexation of described CAN transceiver module is: the anode of described resistance R7 connects the data of MCU controller and sends out
Sending end mouth, the negative terminal of described resistance R7 connects the TXD pin of described CAN transceiving chip；The negativing ending grounding of described electric capacity C9,
Anode connects the power voltage input terminal of CAN transceiving chip；The negative terminal of described resistance R8 connects the transmitting-receiving of described CAN
The RXD pin of chip, the anode of described resistance R8 connects the data receiver port of MCU controller；
One foot of described accurate inductance L1 connects the CANH pin of CAN transceiving chip, and two feet connect CAN transmitting-receiving
The CANL pin of chip, three feet of described accurate inductance are connected to the CAN_H pin of electric capacity C10 anode and system output, and four
Foot is connected to anode and the CAN_L pin of system output of electric capacity C11；The equal ground connection of negative terminal of described electric capacity C10 and C11；
The CAN_L pin of the anode connection system output of described electrostatic defending diode D5, negativing ending grounding；Described electrostatic is prevented
Protect the CAN_H pin of the anode connection system output of diode D6, negativing ending grounding；The anode connection system of described resistance R9 defeated
Going out to hold CAN_H pin, negative terminal connects negative with, the anode of electric capacity C21 and resistance R10 of the 5th pin of CAN transceiving chip
End；The outfan CAN_L pin of the anode connection system of described resistance R10, the negativing ending grounding of described electric capacity C21.
Described state indicator module, is characterized in that: include warning light work LED light, front defrosting work LED instruction
Lamp, the drive end of all working display lamp is all connected to the status signal output of MCU controller.
The utility model has the advantages that: simple in construction, it is possible to the wire harness that a large amount of reduction vehicle bodies use, optimize interior body trim
Layout, and with low cost.
Accompanying drawing explanation
Fig. 1 is the block diagram of this utility model a kind of CAN vehicle body switch integrated control system；
Fig. 2 is the schematic diagram of this utility model power-switching circuit；
Fig. 3 is the circuit theory diagrams of this utility model CAN transceiver module.
Detailed description of the invention
With example, this utility model is described in more detail below in conjunction with the accompanying drawings.
Shown in Figure 1, a kind of CAN vehicle body switch integrated control system, it is characterized in that including: switch key mould
Block, switching output module, MCU controller, power transfer module, CAN transceiver module, state indicator module, supply voltage
Detection module；
The annexation of described CAN vehicle body switch integrated control system is: the output of switch key module is connected to
The control signal input of MCU controller；The input of state indicator module connects the status signal output of MCU controller；CAN
The input of bus transceiver module is connected to the CAN network of car load, and its outfan is connected to the data receiver of MCU controller
With transmission port；The input of state indicator module is connected to the first output port of MCU controller；Supply voltage detection module
The supply voltage that input is described integrated control system, its outfan is connected to the A/D sample port of MCU controller；MCU
Second output port of controller is connected to the control signal input of switching output module；The input of power transfer module connects
To the power end of car load, its output is connected to the power voltage input terminal of above-mentioned all modules.
Fig. 2 show the circuit theory diagrams of power transfer module of the present utility model, comprise Transient Suppression Diode DZ1,
Electric capacity C2, electric capacity C3, electric capacity C4, diode D1, transistor Q1, electric capacity C5, the first electrochemical capacitor EC1, three-terminal voltage-stabilizing chip
U1, the second electrochemical capacitor EC2, electric capacity C6, electric capacity C7, transistor Q2, diode D2, diode D3, diode D4, resistance R3,
Resistance R4, resistance R5, resistance R6 and electric capacity C8.
The annexation of circuit shown in Fig. 2 is: described Transient Suppression Diode DZ1 is with described electric capacity C2, electric capacity C3, electric capacity
C4 parallel connection between the supply voltage and ground, is filtered and prevents the generation of power voltage surge to supply voltage；Described two
The anode of pole pipe D1 connects supply voltage, prevents user in use because of reversal connection input power of slipping up, and negative electrode connects crystalline substance
The emitter stage of body pipe Q1；The colelctor electrode of described transistor Q1 is connected to the input of three-terminal voltage-stabilizing chip U1；Described transistor Q1
Colelctor electrode be also connected to described electric capacity C5 and the anode of the first electrochemical capacitor EC1, described transistor Q1 is subject to by transistor Q2
To driving and the closedown of core MCU controller, thus ensureing in the case of ACC power supply power-fail, the transmission to CAN data is carried out
Storage and memory；Described electric capacity C5 and the negativing ending grounding of the first electrochemical capacitor EC1；
The effect of described three-terminal voltage-stabilizing chip U1 be by vehicle body provide 12V Power convert be CAN vehicle body switch collection
Become the 5V power supply that used of control system, the outfan of described three-terminal voltage-stabilizing chip U1 be connected to described second electrochemical capacitor EC2,
Electric capacity C6, the anode of electric capacity C7；The earth terminal of described three-terminal voltage-stabilizing chip U1, the second electrochemical capacitor EC2, electric capacity C6, electric capacity C7
Negativing ending grounding；
The base stage of described transistor Q1 is connected with the colelctor electrode of described transistor Q2, and the emitter stage of described transistor Q2 connects
Ground；The base stage of described transistor Q2 is connected to diode D3 and the negative electrode of diode D2；The anode of described diode D3 is connected to
The anode of described diode D4 and the anode of described resistance R5；The anode of described diode D3 be also connected to described electric capacity C8,
Resistance R3, the anode of resistance R4；The negative electrode of described diode D4 connects the outfan of power-switching circuit；Described resistance R5, electric capacity
The negativing ending grounding of C8；The negative terminal of described resistance R4 connects input supply voltage ACC；The negative terminal of described resistance R3 is connected to MCU control
First power voltage input terminal of device processed；The anode of described diode D2 is connected to the anode of described resistance R6, described resistance R6
Negative terminal be connected to the second source voltage input end of core MCU controller.
Described CAN transceiver module circuit is as it is shown on figure 3, comprise resistance R7, resistance R8, electric capacity C9, CAN transmitting-receiving
Chip U2, accurate inductance L1, electric capacity C10, electric capacity C11, electrostatic defending diode D5, electrostatic defending diode D6, resistance R9, electricity
Resistance R10, electric capacity C21.
The annexation of CAN transceiver module shown in Fig. 3 is: the anode of described resistance R7 connects the number of MCU controller
According to sending port, the negative terminal of described resistance R7 connects the TXD pin of described CAN transceiving chip；The negative terminal of described electric capacity C9
Ground connection, anode connects the power voltage input terminal of CAN transceiving chip；The negative terminal of described resistance R8 connects described CAN
The RXD pin of transceiving chip, the anode of described resistance R8 connects the data receiver port of MCU controller；Described accurate inductance L1
One foot connect CAN transceiving chip CANH pin, two feet connect CAN transceiving chips CANL pin, described essence
Three feet of cipher telegram sense are connected to the CAN_H pin of electric capacity C10 anode and system output, and four feet are connected to the anode of electric capacity C11
CAN_L pin with system output；The equal ground connection of negative terminal of described electric capacity C10 and C11；The anode of described electrostatic defending diode D5
The CAN_L pin of connection system output, negativing ending grounding；The CAN_ of the anode connection system output of described electrostatic defending diode D6
H pin, negativing ending grounding；The outfan CAN_H pin of the anode connection system of described resistance R9, negative terminal connects CAN transmitting-receiving
5th pin of chip is with, the anode of electric capacity C21 and the negative terminal of resistance R10；The anode connection system of described resistance R10 defeated
Go out to hold CAN_L pin, the negativing ending grounding of described electric capacity C21.
Described state indicator module includes that LED multi-path display lamp, respectively warning light relay indicating light, front defrosting work refer to
Show that the relay indicating light of the push button signallings such as lamp, the drive end of all working display lamp are all connected to the status signal of MCU controller
Outfan.
Further, this utility model also includes supply voltage detection module.Utilize core MCU controller detection power supply electricity
The situation of change of pressure, prevents supply voltage too low or too high.When supply voltage exceedes the scope of default, CAN car
Body switch integrated control system will carry out dormancy, stores and record the state of CAN data, until supply voltage is just being replied
Often.
Claims (4)
1. CAN vehicle body switch an integrated control system, it is characterized in that: include switch key module, switching output module,
MCU controller, power transfer module, CAN transceiver module, state indicator module, supply voltage detection module；
The annexation of described CAN vehicle body switch integrated control system is: the output of switch key module is connected to MCU control
The control signal input of device processed；The input of state indicator module connects the status signal output of MCU controller；CAN
The input of transceiver module is connected to the CAN network of car load, and its outfan is connected to the data receiver of MCU controller and sends out
Sending end mouth；The input of state indicator module is connected to the first output port of MCU controller；Supply voltage detection module defeated
Go out end and be connected to the A/D sample port of MCU controller；Second output port of MCU controller is connected to switching output module
Control signal input；The input of power transfer module is connected to the power end of car load, and its output is connected to above-mentioned all modules
Power voltage input terminal.
A kind of CAN vehicle body switch integrated control system the most according to claim 1, is characterized in that: described power supply turns
Die change block include Transient Suppression Diode DZ1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, transistor Q1, electric capacity C5,
One electrochemical capacitor EC1, three-terminal voltage-stabilizing chip U1, the second electrochemical capacitor EC2, electric capacity C6, electric capacity C7, transistor Q2, diode D2,
Diode D3, diode D4, resistance R3, resistance R4, resistance R5, resistance R6 and electric capacity C8；
The annexation of described power transfer module is: described Transient Suppression Diode DZ1 is with described electric capacity C2, electric capacity C3, electricity
Hold C4 parallel connection between the supply voltage and ground；The anode of described diode D1 connects supply voltage, and negative electrode connects transistor Q1's
Emitter stage；The colelctor electrode of described transistor Q1 is connected to the input of three-terminal voltage-stabilizing chip U1, the colelctor electrode of described transistor Q1
It is also connected to described electric capacity C5 and the anode of the first electrochemical capacitor EC1；The negative terminal of described electric capacity C5 and the first electrochemical capacitor EC1 connects
Ground；
The outfan of described three-terminal voltage-stabilizing chip U1 is connected to described second electrochemical capacitor EC2, electric capacity C6, the anode of electric capacity C7；
The earth terminal of described three-terminal voltage-stabilizing chip U1, the second electrochemical capacitor EC2, electric capacity C6, the negativing ending grounding of electric capacity C7；
The base stage of described transistor Q1 is connected with the colelctor electrode of described transistor Q2, the grounded emitter of described transistor Q2；Institute
The base stage stating transistor Q2 is connected to diode D3 and the negative electrode of diode D2；The anode of described diode D3 is connected to described two
The anode of pole pipe D4 and the anode of described resistance R5；The anode of described diode D3 be also connected to described electric capacity C8, resistance R3,
The anode of resistance R4；The negative electrode of described diode D4 connects the outfan of power-switching circuit；Described resistance R5, the negative terminal of electric capacity C8
Ground connection；The negative terminal of described resistance R4 connects input supply voltage；The negative terminal of described resistance R3 is connected to the first electricity of MCU controller
Source voltage input end；The anode of described diode D2 is connected to the anode of described resistance R6, and the negative terminal of described resistance R6 is connected to
The second source voltage input end of core MCU controller.
A kind of CAN vehicle body switch integrated control system the most according to claim 1, is characterized in that: described CAN
Transceiver module include resistance R7, resistance R8, electric capacity C9, CAN transceiving chip, accurate inductance L1, electric capacity C10, electric capacity C11,
Electrostatic defending diode D5, electrostatic defending diode D6, resistance R9, resistance R10, electric capacity C21；
The annexation of described CAN transceiver module is: the anode of described resistance R7 connects the data sending terminal of MCU controller
Mouthful, the negative terminal of described resistance R7 connects the TXD pin of described CAN transceiving chip；The negativing ending grounding of described electric capacity C9, anode
Connect the power voltage input terminal of CAN transceiving chip；The negative terminal of described resistance R8 connects described CAN transceiving chip
RXD pin, the anode of described resistance R8 connects the data receiver port of MCU controller；
One foot of described accurate inductance L1 connects the CANH pin of CAN transceiving chip, and two feet connect CAN transceiving chip
CANL pin, three feet of described accurate inductance are connected to the CAN_H pin of electric capacity C10 anode and system output, and four feet are even
Receive anode and the CAN_L pin of system output of electric capacity C11；The equal ground connection of negative terminal of described electric capacity C10 and C11；
The CAN_L pin of the anode connection system output of described electrostatic defending diode D5, negativing ending grounding；Described electrostatic defending two
The CAN_H pin of the anode connection system output of pole pipe D6, negativing ending grounding；The outfan of the anode connection system of described resistance R9
CAN_H pin, negative terminal connects the 5th pin of CAN transceiving chip with, the anode of electric capacity C21 and the negative terminal of resistance R10；Institute
State the outfan CAN_L pin of the anode connection system of resistance R10, the negativing ending grounding of described electric capacity C21.
A kind of CAN vehicle body switch integrated control system the most according to claim 1, is characterized in that: described state refers to
Showing that module includes warning light work LED light, front defrosting work LED light, the drive end of all working display lamp all connects
Receive the status signal output of MCU controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857163.6U CN205871957U (en) | 2016-08-09 | 2016-08-09 | CAN bus automobile body switch integrated control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620857163.6U CN205871957U (en) | 2016-08-09 | 2016-08-09 | CAN bus automobile body switch integrated control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205871957U true CN205871957U (en) | 2017-01-11 |
Family
ID=57702685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620857163.6U Expired - Fee Related CN205871957U (en) | 2016-08-09 | 2016-08-09 | CAN bus automobile body switch integrated control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861457A (en) * | 2017-11-08 | 2018-03-30 | 江苏驷博电气有限公司 | Universal logic module |
| CN109032020A (en) * | 2018-08-03 | 2018-12-18 | 中国汽车工程研究院股份有限公司 | A kind of gateway simulation resolver system for new-energy automobile |
| CN110182153A (en) * | 2019-04-10 | 2019-08-30 | 汉腾汽车有限公司 | A kind of vehicle mounted multimedia acquisition GPS and BDS signal logic method |
| CN111025947A (en) * | 2019-12-25 | 2020-04-17 | 昌辉汽车电气系统（安徽）有限公司 | Automobile switch and working method thereof |
| CN112217704A (en) * | 2019-07-11 | 2021-01-12 | 恩智浦有限公司 | Communication between transceiver and microcontroller |
-
2016
- 2016-08-09 CN CN201620857163.6U patent/CN205871957U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107861457A (en) * | 2017-11-08 | 2018-03-30 | 江苏驷博电气有限公司 | Universal logic module |
| CN109032020A (en) * | 2018-08-03 | 2018-12-18 | 中国汽车工程研究院股份有限公司 | A kind of gateway simulation resolver system for new-energy automobile |
| CN109032020B (en) * | 2018-08-03 | 2023-06-09 | 中国汽车工程研究院股份有限公司 | Gateway simulation analyzer system for new energy automobile |
| CN110182153A (en) * | 2019-04-10 | 2019-08-30 | 汉腾汽车有限公司 | A kind of vehicle mounted multimedia acquisition GPS and BDS signal logic method |
| CN112217704A (en) * | 2019-07-11 | 2021-01-12 | 恩智浦有限公司 | Communication between transceiver and microcontroller |
| CN111025947A (en) * | 2019-12-25 | 2020-04-17 | 昌辉汽车电气系统（安徽）有限公司 | Automobile switch and working method thereof |
| CN111025947B (en) * | 2019-12-25 | 2023-03-31 | 昌辉汽车电气系统（安徽）有限公司 | Automobile switch and working method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20210809 |
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| CF01 | Termination of patent right due to non-payment of annual fee |