CN1917329A - Direct power feed bus controller for cars, and control method - Google Patents
Direct power feed bus controller for cars, and control method Download PDFInfo
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- CN1917329A CN1917329A CNA2005100289489A CN200510028948A CN1917329A CN 1917329 A CN1917329 A CN 1917329A CN A2005100289489 A CNA2005100289489 A CN A2005100289489A CN 200510028948 A CN200510028948 A CN 200510028948A CN 1917329 A CN1917329 A CN 1917329A
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Abstract
The disclosed bus controller is composed of power supply, power feeder, master controller, signal line, and at least one slave controller. Through power feeder, one end of the power supply is connected to the master controller and slave controller, and the other end is connected to ground. Through signal line, the master controller is connected to slave controller. The method includes steps: when switch is turned to close, single chip in master controller receives switch signal, and sends out command and address to slave controller; after receiving and checking up the received command, the slave controller outputs signal to terminal control circuit; after receiving command, the said circuit detects whether there is over current or short circuit happened; based on detected result, the circuit makes relay act, and sends instruction to the master controller. The invention reduces number of wires, and can detect and protect faults so as to raise safety and reliability.
Description
Technical field
The present invention relates to a kind of direct power feed bus controller for cars and control method, can be used for controlling the vehicle power consumption equipment, and equipment and power conductor fault are detected protection.
Background technology
In recent years various types of vehicles fire in Shanghai takes place frequently, and especially public transport automobile and taxi fire have brought very big threat for people's life, national wealth and social stability.According to the analysis of vehicle fire accident, greatly the burning things which may cause a fire disaster of the fire of part is owing to electrical malfunction brings out.Through investigating, the electric power system of public transit vehicle is because the defective of traditional design, ever-increasing in addition various types of vehicles power consumption equipment, electric power constantly increases, original electric power system can't bear the heavy load, reasons such as maintenance, improper use in addition, the electrical system of vehicle is becoming the main hidden danger of vehicle fire.
The electrical system of public transport automobile is followed Design Mode for many years, adopts the incorporate thought of power supply control, branch feeding, control along separate routes.Along with the continuous progress of public transit vehicle, function is constantly expanded, and vehicle power consumption equipment, senser element get more and more, and form becomes increasingly complex.The power supply control loop of each power consumption equipment is all set out by storage battery, behind distribution panelboard, fuse, control switch, is connected to power consumption equipment by wire harness, forms the loop by bonding and storage battery again.On the bus of engine at extreme rear formula, electric wiring is especially long, and many loops have surpassed 20 meters and complicated, and the various electric wires of car load always reach several kms.Because lead is tediously long, electric current is big, ohmic loss is high; For ease of arrangement and maintenance, in the automobile design multiple conducting wires is bundled into wire harness.But, when certain power consumption equipment or a certain circuit are short-circuited, consequence is gently then burnt fuse, is burnt control switch, serious then cause burning the line fault, multiply plastic coated wire in the wire harness ignites mutually, often make wire harness become automobile fire " leading the fire bundle " again, cause spreading fast of vehicle fire, make fire incident out of control.
Summary of the invention
The objective of the invention is to invent and a kind ofly reduce lead and again can be in time equipment and power conductor fault be detected the direct power feed bus controller for cars and the control method of protection.
For realizing above purpose, technical scheme of the present invention provides to realizing above purpose, the technical solution of the utility model provides a kind of direct power feed bus controller for cars, it is characterized in that, form by power supply, power feed line, master controller, holding wire, at least one slave controller, power supply one end is connected with at least one slave controller with master controller respectively by the power feed line, other end ground connection, and master controller is connected with at least one slave controller respectively by holding wire.
Described power feed line is made up of conductor, insulating barrier, detection layers and insulating barrier, and dielectric layers and insulating barrier are located at outside the conductor, is provided with detection layers between the dielectric layers.
Described master controller is made up of house dog, single-chip microcomputer, switch, communicating circuit and light-emitting diode, the damaged testing circuit of feed line, the single-chip processor i/o I/O port connects switch, single-chip microcomputer is connected with house dog, communicating circuit and light-emitting diode respectively simultaneously, damaged testing circuit one end of feed line and light-emitting diode, the other end is connected with the power feed line.
The damaged testing circuit of described feed line is made up of triode, controllable silicon, resistance and battery, the emitter of triode connects anode, base stage string one current-limiting resistance connects test point, collector electrode string one current-limiting resistance ground connection, draw on controllable silicon anode series one resistance, trigger electrode string one current-limiting resistance connects transistor collector.
Described slave controller is made up of slave controller control circuit and at least one terminal control circuit, and the slave controller control circuit is connected with each terminal control circuit respectively.
A kind of control method of direct power feed bus controller for cars is characterized in that, its method is:
The first step. switch closes, and the single-chip microcomputer of master controller is received switching signal, and slave controller is sent instruction and slave controller address;
Second step. slave controller receives whether check the address after the instruction of master controller identical, is then to terminal control circuit output signal;
The 3rd step. the terminal control circuit is received slave controller instruction back and is confirmed whether be corresponding instruction, be that then whether detection equipment has overcurrent or short circuit, and output allows the actuating of relay, in time feeds back to master controller simultaneously and sends instruction.
The present invention is in conjunction with Computer Control Technology, the bus control signal transmission technology, adopt power supply to separate with control, realize direct feed, total line traffic control, direct feed, total line traffic control, exactly electrical equipment control and electric power supply are separated, adopt the long-pending power feeder line in heavy in section concentrate single line, directly, automobile electrical power devices proximad just.And control section adopts microprocessing, switch controlling signal is carried out digitized processing, bus by low-voltage, little electric current is transmitted the switching signal of equipment, drives the relay of each power consumption equipment, and then each power consumption equipment of control vehicle, each load is directly powered, accomplish holding wire in the car load body is run through all loads, a high-power line send electricity to each load near-end, and load is power taking nearby, realize that the power line separates with holding wire, thereby abolish " wire harness " on the vehicle.
Advantage of the present invention is:
1. reduce lead and can in time detect the load power-off protection again equipment and power feed line fault; Effectively stop the big electric current that the vehicle electric short circuit causes, prevent the automobile fire that electric short circuit causes, the fail safe that can improve vehicle;
2. select conventional conventional chip on hardware for use, with stability and the production reliability of guaranteeing product, favourable reduction product cost keeps high cost performance;
3. the maintenance logic is distinct, be convenient to manual maintenance, it is interchangeable that Terminal Design becomes, and on each terminal, all having fault to put showing device, the guiding maintenance mans directly find the fault point, make the attendant can find fault very intuitively, at once take measures, can shorten preventive maintenance time greatly,, guarantee normally operation to improve effective fortune tube efficiency of every locomotive.
4. unfailing performance improves, because electric current reduces significantly between the electrode of control section, arcing calcination phenomenon is eliminated, and has greatly prolonged the life-span of switch, and the fault of control switch will reduce significantly, thereby the electrical repair amount of automobile is significantly reduced.
Description of drawings
Fig. 1 is the direct power feed bus controller for cars structured flowchart;
Fig. 2 is the master controller structured flowchart;
Fig. 3 is the main controller circuit schematic diagram;
Fig. 4 is the damaged testing circuit schematic diagram of feed line;
Fig. 5 is the slave controller structured flowchart;
Fig. 6 is a slave controller control circuit schematic diagram;
Fig. 7 is a terminal control circuit schematic diagram;
Fig. 8 is a power feeder structure schematic diagram;
Fig. 9 is the schematic diagram of the present invention's use in the compartment;
Figure 10 is a control operation flow chart of the present invention;
Figure 11 is embodiment 2 master controller structured flowcharts.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment 1
As shown in Figure 1, be the direct power feed bus controller for cars structured flowchart, described direct power feed bus controller for cars controller is made up of power supply 1, power feed line 2, master controller 3, holding wire 4, two slave controllers 5, power supply 1 one ends are connected with two slave controllers 5 with master controller 3 respectively by power feed line 2, other end ground connection, master controller 3 is connected with two slave controllers 5 respectively by holding wire 4.
Shown in Fig. 2,3, be the governor circuit schematic diagram, described master controller 3 is made up of house dog 6, single-chip microcomputer 7, switch 8, communicating circuit 9 and light-emitting diode 10, single-chip microcomputer 7I/O I/O port P0.0-P2.7 connects switch 8, single-chip microcomputer 7 is connected with house dog 6, communicating circuit 9 and light-emitting diode 10 respectively simultaneously, damaged testing circuit 11 1 ends of feed line and light-emitting diode 10, the other end is connected with power feed line 2.
Single-chip microcomputer 7 is to be core with the singlechip chip, add compositions such as capacitance resistance component, and single-chip microcomputer 7 function modes then are to handle with the inside that the software programming mode is finished data, and get in touch with slave controller 5 by communication port RXD (serial data input)/TXD (serial data output).
Because a master controller 3 is controlled a plurality of slave controllers 5 simultaneously, each slave controller 5 is attempted by again on same holding wire 4 lines simultaneously, therefore require to give different addresses for each slave controller 5, so that master/slave machine is discerned mutually, after main frame sends instruction, each slave controller 5 is all receiving, have only after slave controller 5 is being received identical address and just can respond, same slave controller 5 feedback fault-signals, master controller 3 also can determine it is that slave according to different addresses, so that make respective reaction.
Because automobile causes totally unfavorable influence in its various interference of when operation to the operate as normal of single-chip microcomputer 7; the utilization of watchdog circuit 6 be integrate regularly, functions such as the ultralow pressure protection automatically resets, memory, thereby overcome the various electromagnetic interference problems that vehicle is in operation effectively.
Single-chip microcomputer 7 several I/O I/O ports connect switch 8, keyboard switch 8 is located in the automobile cab, its each mouthful is all with drawing on the 1K resistance, be single-chip microcomputer positive electricity+5V, be a high level at ordinary times, because switch 8 one termination single-chip microcomputer 7I/O mouths, switch other end ground connection, not opening Shi Erdian at switch 8 disconnects, port is+the 5V high level, can work as the closed back of switch 8 because switch 8 other ends are ground connection, so point voltage is 0V by high step-down also, this just finishes the saltus step of monolithic I/O mouth, thereby obtained this ON/OFF work state information, single-chip microcomputer 7 is just finished internal data according to this variation and is handled under software helps, further send instruction to slave controller 5 then, at last by slave controller 5 allow terminal open relay send electricity to electrical appliance by its work.
Such connection is to switch 8 no any requirements, and various watt levels, pattern can both be competent at, and can thoroughly change the shortcoming that the long distance of present switch wire connects.
For the reliability that ensures communicating circuit and long Distance Transmission, on the communication port of single-chip microcomputer 7, added the communicating circuit 9 of an outsourcing, this circuit has that peripheral circuit is simple, and strong anti-interference performance need not to add components and parts, and effective communication distance in two wires can reach 1 kilometer.
Fault display circuit is light-emitting diode 10, this part circuit is the response to the fault-signal of single-chip microcomputer 7 outputs, behind the fault message that slave controller 5 feedbacks that master controller 3 machines receive are come, advancing the address comparison confirms to handle through single-chip microcomputer 7 internal datas, and export a high level at corresponding port and light light-emitting diode 10, the light-emitting diode 10 of diverse location is represented different slave controllers 5 respectively, the operator just is easy to obtain confirm from the seat, because after breaking down, single-chip microcomputer 7 output ports will be high level by low transition, just can be easy to realize reporting to the police as long as add a warning device.
In order to ensure the operate as normal of entire circuit, therefore it is most important that especially the work of single-chip microcomputer has a reliable power supply 1, not only used professional DC/DC single-chip power supply (LM2575-5) here, and increased power filter.
As shown in Figure 4, be the damaged testing circuit schematic diagram of feed line, the damaged testing circuit 11 of described feed line is made up of triode 12, controllable silicon 13, resistance 14 and battery 15, the emitter of triode 12 connects battery 15 positive poles, base stage string one current-limiting resistance connects test point, collector electrode string one current-limiting resistance ground connection, draw on controllable silicon 13 anode series one resistance, trigger electrode string one current-limiting resistance connects the collector electrode of triode 12.
The damaged testing circuit 11 of feed line is battery-powered, in order to ensure vehicle power supply circuit, because this circuit is independently-powered, even if automobile power source disconnects or power supply has fault, also can guarantee its testing circuit operate as normal, triode 12 is in cut-off state when flat, and current collection is low level very, and controllable silicon 13 triggerless are also ended, light-emitting diode 10 negative poles are high, then do not work because the base stage of triode 12 connects the damaged test point of feed line, when this line normally then level be height, and after the breakage of insulating material feed line with the vehicle body short circuit, level is by high step-down, and triode 12 conducting controllable silicons 13 ignition anode step-downs are lighted behind the light-emitting diode 10 negative pole step-downs.
When the 2 outermost insulating barriers 35 of the power feed line on the automobile are damaged because of wearing out, expose detection layers 34, because the silicon controlled utilization in case detect back controllable silicon triggering and conducting, will be kept its conducting state, light-emitting diode 10 is with Chang Liang, send caution, but alert is changed cable at once, damaged cable is because nexine also has a layer insulating 33, it is just replaceable to make cable also be unlikely to short circuit, can effectively avoid the vehicle fire alarm accident that causes because of cable short circuit like this.
As shown in Figure 5, be the slave controller structured flowchart, described slave controller 5 is made up of slave controller control circuit 16 and at least one terminal control circuit 17, and slave controller control circuit 16 is connected with each terminal control circuit 17 respectively.
As shown in Figure 6, be slave controller control circuit schematic diagram, described slave controller control circuit 16 is by communicating circuit 18, single-chip microcomputer 19, input/output interface 20 and house dog 21 are formed, the read/write head of single-chip microcomputer 19 is connected with master controller 3 communication ports by communication chip, communicating circuit 18 is connected by the input port of resistance with single-chip microcomputer 19 with house dog 21, keep a high level when evening up on the resistance, when single-chip microcomputer output high level, this gate output will be exported high level, so also just finished the switch motion to relay, the delivery outlet of single-chip microcomputer 19 is connected with input/output interface 20.
As shown in Figure 7; be terminal control circuit schematic diagram; described terminal control circuit 17 is by four inputs, two output AND circuit 22; triode 23; relay 24; diode 25; light-emitting diode 10; controllable silicon 13; tongue tube 26; cement resistor 27 is formed; four inputs, two output AND circuit 22 are formed overcurrent; short-circuit protection circuit; triode 23; light-emitting diode 10; controllable silicon 13 and cement resistor 27 are formed over-current detection circuit; triode 23 base stages are connected with cement resistor 27 delivery outlets; the emitter of triode 23 links to each other with cement resistor 27 inputs with light-emitting diode 10; link to each other with the I/O delivery outlet of single-chip microcomputer 19 simultaneously; collector electrode string one grounding through resistance also is connected with controllable silicon 13; controllable silicon 13 is connected with four inputs, two output AND circuit 22; four inputs, two output AND circuit 22; relay 24; diode 25 and tongue tube 26 are formed short-circuit detecting circuit; tongue tube 26 1 ends are connected with relay 24 outputs, and the other end is connected by an input of diode 25 and AND circuit 22.
Whether terminal control circuit 17 is final execution terminals of whole power bus controller, mainly finish and receive ON/OFF instruction, overcurrent, open circuit and detect and allow the relay electrical appliance send tasks such as electricity.
Single-chip microcomputer 19 receives the control signal that master controller 3 sends, because sending signal, master controller 3 is mass-sending, each slave controller 5 receives simultaneously, therefore must at first compare appropriate address, after confirming that the address is identical, by high level of the corresponding I/O mouth output of single-chip microcomputer, last terminal is carried out switch motion, single-chip microcomputer 19 is also found fault to the terminal implementation simultaneously, sends out feedback to master controller 3, so that 3 pairs of faults of master controller are made prompting.
The some I/O of single-chip microcomputer (I/O) mouthfuls of output control levels, each mouth of I/O is respectively with drawing on the 1K resistance.This mouth occurs with low level at ordinary times, and slave high level of output when realizing start.The singlechip interruption mouth is for receiving the fault feedback.This mouthful of fault-free basis has the fault terminal to send a high level here as low level.
The AND circuit characteristics are high level simultaneously for having only two input ports, and output just is high.
Overcurrent; the principle of short-circuit protection circuit is: a mouth of one group of input of circuit connecting links to each other with the single-chip processor i/o delivery outlet; keep a high level when evening up on another mouthful usefulness one resistance; when relay open send electricity after; overcurrent or short circuit appear in electrical appliance; short-circuit detecting triggers controllable silicon 13 conductings to the back; connect high level on the anode when controllable silicon 13 is flat; this end draws together with on the gate resistor again; keeping a high level end at ordinary times connects; this point is dragged down after controllable silicon 13 triggering and conducting, because an input of AND circuit 22 is dragged down, output also is low; the other end is high with single-chip microcomputer 19 links promptly; single-chip microcomputer 19 place's open states are in relay 24 and are failure to actuate, load dead electricity and being protected; relay 24 does not recover often to open after having had drive wire bag voltage, is protected thereby power consumption equipment like this also just is in outage.
String power is cement resistor 27 o.1-1 in the electrical appliance loop, when electrical appliance for resistance two end pressure drops just often less than 0.6V, resistance two ends were then greater than 0.6V when overcurrent or short circuit appearred in electrical appliance, triode 23 conductings, when electrical appliance just often resistance two terminal voltages less than 0.6V, triode 23 is in by current collection low level very, electrical appliance overcurrent occurs or short-circuit resistance two terminal voltages will be greater than 0.6V, triode 23 conductings, current collection is high level very, because triode 23 collector electrodes are connected with the controllable silicon trigger electrode, in case triode 23 collector electrodes uprise and controllable silicon 13 conductings, again because controllable silicon 13 anodes are just connecing on current-limiting resistance, controllable silicon 13 anodes are high level at ordinary times, in case and controllable silicon 13 triggering and conducting anodes will become low level, this point can drag down input of AND circuit, thereby and for low also having finished terminal control unit is locked always.
The principle of open circuit fault is: when single-chip microcomputer 19 exported a high level of opening and since electrical appliance damage and to cause and open circuit, no current flows through tongue tube 26 and is failure to actuate in tongue tube 26 coils, again because the other end of tongue tube 26 is to succeed the output that electrical equipment 24 send electricity, send owing to single-chip microcomputer 19 has sent 24 actions of start-up command relay this moment, therefore that end of tongue tube 26 is a high level, tongue tube 26 is a closed type, so other end level also is high, this moment, single-chip microcomputer 19 inputs were high, tongue tube 26 inputs also are high, two inputs are both output will be also for high, so open circuit fault indication light-emitting diode 10 is lighted, because faults such as open circuit appear in the damage of electrical appliance or connection, cause electrical appliance not work, and the indicator light that opens circuit is lighted.
When relay 24 adhesive switches send, this moment is as the power consumption equipment operate as normal, tongue tube 26 lines are surrounded by normal current and flow through, tongue tube 26 moves and disconnects, tongue tube 26 other end step-down level, occur opening circuit in tongue tube 26 line bags this moment that no current flows through and tongue tube 26 is failure to actuate as electrical appliance, tongue tube 26 2 ends all will be high level, this just finish to keep a high level with door 22 input and have start that send into high level door 22 another mouthfuls, also just make high level of its output output.
As shown in Figure 8, be power feeder structure schematic diagram, described power feed line 2 is made up of conductor 28, insulating barrier 29, detection layers 30 and insulating barrier 31, and insulating barrier 29 and insulating barrier 31 are located at outside the conductor 28, is provided with detection layers 30 between insulating barrier 29 and insulating barrier 31.
As shown in Figure 9, be the schematic diagram of the present invention's use in the compartment, 32 heads are installed a master controller 3 and two slave controllers 5 in the compartment, 32 afterbodys are installed two slave controllers 5 in the compartment, 32 1 sides are installed power supply 1 in the compartment, power supply 1 one ends are connected with four slave controllers 5 with master controller 3 respectively by the power feed line 2 of compartment 32 1 sides, other end ground connection, master controller 3 is connected with four slave controllers 5 respectively by the holding wire 4 of compartment 32 opposite sides, the output of four slave controllers 5 connects automobile electrical equipment 33 respectively, according to automobile electrical equipment 33 what, can increase or reduce slave controller 5.
As shown in figure 10, be control operation flow chart of the present invention, system is when initial power supply, 7,19 pairs of whole systems detections of single-chip microcomputer are also confirmed system-wide initial condition, the i.e. state of all switches 8, and recorded and stored, as finding to have fault, master controller 3 is informed the abort situation that the operator is concrete by sound or light prompting.Promptly do not enter the preparation that next step carries out the new instruction of reception as having, and system is made timing scan, to guarantee to capture immediately fault-signal.After system testing is normal, after master controller 3 a certain passages send instruction, slave controller 5 promptly according to instruction whether differentiate at oneself, in this way at oneself, promptly to the received signal terminal control circuit 17 is operated, and acquired signal, feed back to master controller 3 strictly according to the facts, and by this state of master controller 3 decision whether the continuation, whether the damaged testing circuit 11 of feed line detects every circuit intact, notifies the operator to remove fault if any fault at once, avoids fire alarm to take place, whether terminal control circuit 17 detection equipment 33 have overcurrent or short circuit, can in time feed back to master controller 3 and send instruction.
As shown in figure 11, be embodiment 2 master controller structured flowcharts, described master controller 3 is made up of house dog 6, single-chip microcomputer 7, switch 8, communicating circuit 9 and light-emitting diode 10, the damaged testing circuit 11 of feed line and photoelectrical coupler 34, is provided with photoelectrical coupler 34 between single-chip microcomputer 7 and the switch 8.
In the vehicle operating process, various electromagnetic interference in the vehicle are quite serious, especially to the interference of the I/O port of single-chip microcomputer 7, cause single-chip microcomputer 7 work disorderly, the lighter makes single-chip microcomputer 7 work not normal, heavy person may cause single-chip microcomputer 7 ports to damage, and even single-chip microcomputer 7 is scrapped, the connector of switch for vehicle 8 and single-chip microcomputer 7, it is the cutting point of electromagnetic interference, therefore block switch 8 and 70 fens necessity of single-chip microcomputer, adding a photoelectrical coupler 34 between switch 8 and single-chip microcomputer 7 can be effectively with this isolation, because photoelectrical coupler is with light/electric form transmission, elementary and secondary do not have electric current to contact directly, thereby can effectively overcome this interference, guarantee single-chip microcomputer 7 operate as normal, other is identical with embodiment 1.
Switch 8 in the described master controller 3 is provided with the conversion switch of triode and resistance capacitance composition.
Along with automobile electrical equipment constantly increases, and these equipment are often before car, this just requires to increase switch 8, the conversion switch that uses triode and resistance capacitance to form can effectively be finished the switching of switch, and can make the conventional power switch consistent with single-chip microcomputer 7 switch form, other is identical with embodiment 1.
Claims (10)
1. direct power feed bus controller for cars, it is characterized in that, form by power supply (1), power feed line (2), master controller (3), holding wire (4), at least one slave controller (5), power supply (1) one end is connected with at least one slave controller (5) with master controller (3) respectively by power feed line (2), other end ground connection, master controller (3) is connected with at least one slave controller (5) respectively by holding wire (4).
2. direct power feed bus controller for cars according to claim 1, it is characterized in that, described master controller (3) is by house dog (6), single-chip microcomputer (7), switch (8), communicating circuit (9) and light-emitting diode (10), the damaged testing circuit of feed line (11) is formed, single-chip microcomputer (7) I/O I/O port P0.0-P2.7 connects switch (8), single-chip microcomputer (7) simultaneously respectively with house dog (6), communicating circuit (9) is connected with light-emitting diode (10), damaged testing circuit (11) one ends of feed line and light-emitting diode (10), the other end is connected with power feed line (2).
3. direct power feed bus controller for cars according to claim 2, it is characterized in that, the damaged testing circuit of described feed line (11) is made up of triode (12), controllable silicon (13), resistance (14) and battery (15), the emitter of triode (12) connects battery (15) positive pole, base stage string one current-limiting resistance connects test point, collector electrode string one current-limiting resistance ground connection, draw on controllable silicon (13) anode series one resistance, trigger electrode string one current-limiting resistance connects transistor collector.
4. direct power feed bus controller for cars according to claim 1, it is characterized in that, described slave controller (5) is made up of slave controller control circuit (16) and at least one terminal control circuit (17), and slave controller control circuit (16) is connected with each terminal control circuit (17) respectively.
5. direct power feed bus controller for cars according to claim 4, it is characterized in that, described slave controller control circuit (16) is made up of communicating circuit (18), single-chip microcomputer (19), input/output interface (20) and house dog (21), the read/write head of single-chip microcomputer (19) is connected with master controller (3) communication port by communication chip, communicating circuit (18) is connected by the input port of resistance with single-chip microcomputer (19) with house dog (21), and the delivery outlet of single-chip microcomputer (19) is connected with input/output interface (20).
6. direct power feed bus controller for cars according to claim 4; it is characterized in that; described terminal control circuit (17) is by four inputs, two output AND circuit (22); triode (23); relay (24); diode (25); light-emitting diode (10); controllable silicon (13); tongue tube (26); cement resistor (27) is formed; four inputs, two output AND circuit (22) are formed overcurrent; short-circuit protection circuit; triode (23); light-emitting diode (10); controllable silicon (13) and cement resistor (27) are formed over-current detection circuit; triode (23) base stage is connected with cement resistor (27) delivery outlet; the emitter of triode (23) links to each other with cement resistor (27) input with light-emitting diode (10); link to each other with the I/O delivery outlet of single-chip microcomputer (19) simultaneously; collector electrode string one grounding through resistance also is connected with controllable silicon (13); controllable silicon (13) is connected with four inputs, two output AND circuit (22); four inputs, two output AND circuit (22); relay (24); diode (25) and tongue tube (26) are formed short-circuit detecting circuit; tongue tube (26) one ends are connected with relay (24) output, and the other end is connected by an input of diode (25) and AND circuit (22).
7. direct power feed bus controller for cars according to claim 1, it is characterized in that, described power feed line (2) is made up of conductor (28), insulating barrier (29), detection layers (30) and insulating barrier (31), insulating barrier (29) and insulating barrier (31) are located at outside the conductor (28), are provided with detection layers (30) between insulating barrier (29) and insulating barrier (31).
8. direct power feed bus controller for cars according to claim 2 is characterized in that, is provided with photoelectrical coupler (34) between single-chip microcomputer (7) in the described master controller (3) and the switch (8).
9. according to claim 2 or 7 described direct power feed bus controller for cars, it is characterized in that the switch (8) in the described master controller (3) is provided with the conversion switch of triode and resistance composition.
10, a kind of control method of direct power feed bus controller for cars is characterized in that, its method is:
The first step. switch (8) closes, and the single-chip microcomputer (7) of master controller (3) is received switch (8) signal, and slave controller (5) is sent instruction and slave controller (5) address;
Second step. slave controller (5) receives whether check the address after the instruction of master controller (3) identical, is then to terminal control circuit (17) output signal;
The 3rd step. terminal control circuit (17) is received slave controller (5) instruction back and is confirmed whether be corresponding instruction, be that then whether detection equipment (33) has overcurrent or short circuit, and output allows relay (24) action, in time feeds back to master controller (3) simultaneously and sends instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100289489A CN1917329A (en) | 2005-08-19 | 2005-08-19 | Direct power feed bus controller for cars, and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100289489A CN1917329A (en) | 2005-08-19 | 2005-08-19 | Direct power feed bus controller for cars, and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1917329A true CN1917329A (en) | 2007-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100289489A Pending CN1917329A (en) | 2005-08-19 | 2005-08-19 | Direct power feed bus controller for cars, and control method |
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| Country | Link |
|---|---|
| CN (1) | CN1917329A (en) |
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| CN102035614A (en) * | 2009-09-27 | 2011-04-27 | 中兴通讯股份有限公司 | Transmitting end-based fault monitoring device |
| CN101494937B (en) * | 2008-12-19 | 2012-06-27 | 上海广茂达光艺科技股份有限公司 | On-site bus equipment and built-in address confirmation device |
| CN102723696A (en) * | 2012-06-28 | 2012-10-10 | 浙江百纳橡塑设备有限公司 | Anti-radiation control circuit and control method of microwave vulcanization production line equipment |
| CN102791531A (en) * | 2010-03-16 | 2012-11-21 | 罗伯特·博世有限公司 | Method for identifying a short circuit to the positive terminal of a battery and circuit device for carrying out the method |
| CN102147783B (en) * | 2010-02-08 | 2013-04-24 | 鸿富锦精密工业（深圳）有限公司 | Master device and slave device communication circuit |
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| CN108683203A (en) * | 2018-04-12 | 2018-10-19 | 浙江正泰电器股份有限公司 | Energy-storage system |
| CN109818339A (en) * | 2017-11-22 | 2019-05-28 | 大众汽车有限公司 | Overload protection method for a bus station in a motor vehicle and circuit arrangement for implementing the method |
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| CN101494937B (en) * | 2008-12-19 | 2012-06-27 | 上海广茂达光艺科技股份有限公司 | On-site bus equipment and built-in address confirmation device |
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| CN102147783B (en) * | 2010-02-08 | 2013-04-24 | 鸿富锦精密工业（深圳）有限公司 | Master device and slave device communication circuit |
| US8825282B2 (en) | 2010-03-16 | 2014-09-02 | Robert Bosch Gmbh | Method for identifying a short circuit to the positive terminal of a battery and circuit device for carrying out the method |
| CN102791531A (en) * | 2010-03-16 | 2012-11-21 | 罗伯特·博世有限公司 | Method for identifying a short circuit to the positive terminal of a battery and circuit device for carrying out the method |
| CN104054048A (en) * | 2011-11-08 | 2014-09-17 | 奥托里夫Asp股份有限公司 | Determining the operating status of an electrical system having a system controller and an actuator controller |
| CN104054048B (en) * | 2011-11-08 | 2017-05-17 | 奥托里夫Asp股份有限公司 | Determining the operating status of an electrical system having a system controller and an actuator controller |
| CN102723696A (en) * | 2012-06-28 | 2012-10-10 | 浙江百纳橡塑设备有限公司 | Anti-radiation control circuit and control method of microwave vulcanization production line equipment |
| CN102723696B (en) * | 2012-06-28 | 2014-12-03 | 浙江百纳橡塑设备有限公司 | Anti-radiation control circuit and control method of microwave vulcanization production line equipment |
| CN109818339A (en) * | 2017-11-22 | 2019-05-28 | 大众汽车有限公司 | Overload protection method for a bus station in a motor vehicle and circuit arrangement for implementing the method |
| CN109818339B (en) * | 2017-11-22 | 2021-03-09 | 大众汽车有限公司 | Overload protection method for a bus station in a motor vehicle and circuit arrangement for implementing the method |
| CN108683203A (en) * | 2018-04-12 | 2018-10-19 | 浙江正泰电器股份有限公司 | Energy-storage system |
| CN111141966A (en) * | 2018-11-06 | 2020-05-12 | 博世汽车部件(长沙)有限公司 | Method for detecting hardware fault through single communication line and hardware module |
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