CN103507658B - Battery-driven car and bus control system thereof - Google Patents
Battery-driven car and bus control system thereof Download PDFInfo
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- CN103507658B CN103507658B CN201210207021.1A CN201210207021A CN103507658B CN 103507658 B CN103507658 B CN 103507658B CN 201210207021 A CN201210207021 A CN 201210207021A CN 103507658 B CN103507658 B CN 103507658B
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- 230000008054 signal transmission Effects 0.000 claims abstract description 20
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
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- 229910052742 iron Inorganic materials 0.000 description 2
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Abstract
The invention belongs to field of electrical equipment, particularly relate to a kind of battery-driven car and bus control system thereof.The battery-driven car that the embodiment of the present invention provides and bus control system thereof, two difference channel modules are added in original bus control system, lay respectively at original bus two ends, link control module and functional module respectively, former signal transmission is converted into differential signal transmit, namely utilize differential signal transmission mode efficiently solve bus transfer signal in bus control system be subject to EMI interference and the problem of control disorder, reach jamproof object, make battery-driven car bus control system scheme more safe and reliable.
Description
Technical field
The invention belongs to field of electrical equipment, particularly relate to a kind of battery-driven car and bus control system thereof.
Background technology
The control module of battery-driven car generally will connect motor, speed-regulating handle bar, instrumentation module and other external equipment, and these equipment be connected with control module are distributed on the two ends of battery-driven car in fitting process usually.And in the control system of existing battery-driven car except hall signal line, motor lines, also at least comprise brake control line one, three fast control lines three, electric current indicatrix one, speed indicatrix one, and other function control line etc. may be comprised, connect up very complicated.In order to simplify the cabling in electric EMU process of assembling, reduce the waste of human resource that traditional electrical motor-car cabling complexity causes, prior art provides a kind of scheme of bus control system, as shown in Figure 1, namely bus control system comprises two wires of a control module, a functional module and link control module and functional module, also namely replace traditional complicated wire harness with two wires, two wires are here defined as bus in such a system.In addition, the control module in control system is still directly connected with motor, and functional module comprises electric current instruction, speed instruction and other signals etc.
But, such scheme is at anti-EMI filter (ElectromagneticInterfe/REnce, electromagnetic interference, be called for short EMI) aspect existing defects, if press iron loudspeaker in ride, disturbing pulse signal will produce interference to the signal transmission in two buses, functional module is probably made to receive the signal of mistake, cause battery-driven car speed governing invalid or stop the phenomenon such as driving, have a strong impact on the normal use of battery-driven car, even cause a series of safety misadventure.
Differential transfer is a kind of technology of Signal transmissions, is different from the way of traditional single-ended signal transmission, and differential transfer needs transmitting two paths of signals simultaneously, and the amplitude of this two paths of signals is equal, phase place contrary, is called differential signal.Differential signal is exactly that signal driver end sends two equivalences, anti-phase signal, what receiving end judged that sending end sends by the difference comparing these two voltages is logical zero or logical one, and that a pair cabling carrying differential signal is just called difference cabling.
Summary of the invention
The object of the present invention is to provide a kind of bus control system of battery-driven car, to strengthen the jamproof ability of battery-driven car wire transmission signal, be intended to the technical matters solving former bus control system signal transmission poor anti jamming capability.
To achieve these goals, the present invention is achieved in that
A kind of bus control system of battery-driven car, comprise the motor, control module and the functional module that connect successively, described functional module comprises the signaling modules such as electric current instruction, speed instruction, two buses are adopted to connect between described control module and functional module, as improvement, described bus control system also comprise be positioned at bus two ends, be connected with functional module with described control module respectively, former signal transmission be converted into the first difference channel module and the second difference channel module that differential signal carries out transmitting.
Another object of the present invention is to provide a kind of battery-driven car, include but not limited to battery-operated motor cycle and Electrical Bicycle, described battery-driven car comprises bus control system as above.
Battery-driven car provided by the invention and bus control system thereof, two difference channel modules are added in original bus control system, lay respectively at original bus two ends, link control module and functional module, transmit by former signal transmission is converted into differential signal, to reach jamproof object.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of battery-driven car bus control system of the prior art;
The structured flowchart of the battery-driven car bus control system that Fig. 2 embodiment of the present invention provides;
Fig. 3 is the exemplary electron components and parts figure of the first difference channel module that the embodiment of the present invention provides;
Fig. 4 is the exemplary electron components and parts figure of the second difference channel module that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In the actual production of battery-driven car, consider Cost Problems, the signal wire (SW) that original bus control system adopts is two common wires, in fact, the wire adopting its itself to have an anti-interference function as during shielding wire etc. be disturbed and still exist, the pickup electrode that signal wire (SW) transmits is vulnerable to the interference of extraneous impulse singla and causes transmitting error in data, by some emulation experiments, can find out significantly under extraneous impulse singla interference, original signal there will be high level and is dragged down, the phenomenon that low level is driven high.
The embodiment of the present invention utilizes differential signal transmission to have the advantage of hyperimmunization power to external electromagnetic interference EMI, in bus control system, creatively add two difference channel modules, transmit for converting former bus signals to differential signal, drastically increase the antijamming capability of battery-driven car bus marco, achieve the normal operation and maintenance of battery-driven car.
The structured flowchart of the battery-driven car bus control system that Fig. 2 embodiment of the present invention provides, for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention.As shown in the figure:
A kind of bus control system of battery-driven car, comprise motor 100, control module 200 and functional module 300, wherein, motor 100 is directly connected with control module 200, functional module 300 comprises electric current instruction, speed instruction and other signaling modules etc., adopts two buses to connect between control module 200 and functional module 300.As one embodiment of the invention, bus control system also comprises two the difference channel modules laying respectively at bus two ends, be the first difference channel module 401 be connected with control module 200 and the second difference channel module 402 be connected with functional module 300 respectively, difference channel module 401 and 402 is transmitted for former signal transmission is converted into differential signal.
Fig. 3 is the exemplary electron components and parts figure of the first difference channel module 401 that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, as shown in the figure:
First difference channel module 401 comprises difference chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2 and electric capacity C3;
The input end D of difference chip U1, mouth R connects the first mouth and second mouth of control module 200 respectively, resistance R1 is connected between the direct supply of the input end D and+5V of difference chip U1, resistance R2 is connected between the direct supply of the mouth R and+5V of difference chip U1, two Enable Pin DE of difference chip U1, / RE connects the control signal mouth of control module 200 simultaneously, resistance R3 is connected on Enable Pin DE, between the public connecting end of/RE and ground, the ground terminal GND ground connection of difference chip U1, the power end VCC of difference chip U1 connects the direct supply of+5V, between the power end VCC that electric capacity C3 is connected on difference chip U1 and ground, two input/output terminal A of difference chip U1, B connects bus 1 and bus 2 respectively, resistance R4, between the input/output terminal A that electric capacity C1 is attempted by difference chip U1 respectively and the direct supply of+5V, resistance R5, between the input/output terminal B that electric capacity C2 is attempted by difference chip U1 respectively and ground.
Fig. 4 is the exemplary electron components and parts figure of the second difference channel module that the embodiment of the present invention provides, similar with the first difference channel module 401 shown in Fig. 3, the second difference channel module 402 comprises difference chip U2, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, electric capacity C4, electric capacity C5 and electric capacity C6;
Two input/output terminal A of difference chip U2, B connects bus 1 and bus 2 respectively, resistance R9, between the input/output terminal A that electric capacity C4 is attempted by difference chip U2 respectively and the direct supply of+5V, resistance R10, between the input/output terminal B that electric capacity C5 is attempted by difference chip U2 respectively and ground, the ground terminal GND ground connection of difference chip U2, the power end VCC of difference chip U2 connects the direct supply of+5V, between the power end VCC that electric capacity C6 is connected on difference chip U2 and ground, the input end D of difference chip U2, the first input end of mouth R difference connection function module 300 and the second input end, resistance R6 is connected between the direct supply of the input end D and+5V of difference chip U2, resistance R7 is connected between the direct supply of the mouth R and+5V of difference chip U2, two Enable Pin DE of difference chip U2, the control signal mouth of connection function module 300 while of/RE, resistance R8 is connected on Enable Pin DE, between the public connecting end of/RE and ground.
When adopting differential drive circuit that original signal is converted into differential signal transmission, because Difference signal pair external electromagnetic interference (EMI) is hyperimmunization, an interference source almost identical degree ground affects every one end of Difference signal pair, since voltage differences determines signal value, the any same interference that occurs on two conductors will be ignored like this, so it is extremely low to be sent to the signal error rate of receiving end from sending end.Prove through test, do not take in the bus control system of corresponding interference protection measure only carrying out Signal transmissions with two wires, under the interference of this kind of interference source of iron loudspeaker, the bit error ratio of signal transmission is just up to more than 90%; And after adding difference channel module 401 and 402, differential mode is adopted to carry out in the bus control system of Signal transmissions, the bit error ratio is below 0.5%, add in practical application and all can add check bit in transmitted signal, the bit error ratio is low to moderate less than 0.05%, almost negligible, improve the antijamming capability of the battery-driven car adopting bus control system scheme largely.
On the other hand, by difference channel module 401 and 402, former signal transmission is converted into differential signal to transmit, although after signal is converted to differential signal, signal transmission each time needs to take two paths of signals line and transmits, semiduplex mode is become by original full-duplex mode, but because bus transfer data speed is fast, it does not affect the communication between control module 200 and functional module 300.
Second embodiment of the invention provides a kind of battery-driven car, and this battery-driven car comprises bus control system as described in the first embodiment of the present invention; Further, the kind of battery-driven car includes but not limited to battery-operated motor cycle and Electrical Bicycle.
The battery-driven car that the embodiment of the present invention provides and bus control system thereof, two difference channel modules are added in original bus control system, lay respectively at original bus two ends, link control module and functional module respectively, former signal transmission is converted into differential signal transmit, namely utilize differential signal transmission mode efficiently solve bus transfer signal in bus control system be subject to EMI interference and the problem of control disorder, reach jamproof object, make battery-driven car bus control system scheme more safe and reliable.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although with reference to previous embodiment to invention has been comparatively detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments or carry out equivalent replacement to wherein portion of techniques feature.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the bus control system of a battery-driven car, comprise the motor, control module and the functional module that connect successively, described functional module comprises current indicating signal module and rate indicative signal module, two buses are adopted to connect between described control module and functional module, it is characterized in that, described bus control system also comprises:
Be positioned at bus two ends, be connected with functional module with described control module respectively, former signal transmission be converted into the first difference channel module and the second difference channel module that differential signal carries out transmitting.
2. bus control system as claimed in claim 1, is characterized in that: described first difference channel module comprises difference chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2 and electric capacity C3;
The input end D of described difference chip U1, mouth R connects the first mouth and second mouth of described control module respectively, between the input end D that described resistance R1 is connected on described difference chip U1 and direct supply, between the mouth R that described resistance R2 is connected on described difference chip U1 and direct supply, two Enable Pin DE of described difference chip U1, / RE connects the control signal mouth of described control module simultaneously, described resistance R3 is connected on described Enable Pin DE, between the public connecting end of/RE and ground, the ground terminal GND ground connection of described difference chip U1, the power end VCC of described difference chip U1 connects direct supply, between the power end VCC that described electric capacity C3 is connected on described difference chip U1 and ground, two input/output terminal A of described difference chip U1, B connects described bus respectively, described resistance R4, between the input/output terminal A that electric capacity C1 is attempted by described difference chip U1 respectively and direct supply, described resistance R5, between the input/output terminal B that electric capacity C2 is attempted by described difference chip U1 respectively and ground.
3. bus control system as claimed in claim 1 or 2, is characterized in that: described second difference channel module comprises difference chip U2, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, electric capacity C4, electric capacity C5 and electric capacity C6;
Two input/output terminal A of described difference chip U2, B connects described bus respectively, described resistance R9, between the input/output terminal A that electric capacity C4 is attempted by described difference chip U2 respectively and direct supply, described resistance R10, between the input/output terminal B that electric capacity C5 is attempted by described difference chip U2 respectively and ground, the ground terminal GND ground connection of described difference chip U2, the power end VCC of described difference chip U2 connects direct supply, between the power end VCC that described electric capacity C6 is connected on described difference chip U2 and ground, the input end D of described difference chip U2, mouth R connects first input end and second input end of described functional module respectively, between the input end D that described resistance R6 is connected on described difference chip U2 and direct supply, between the mouth R that described resistance R7 is connected on described difference chip U2 and direct supply, two Enable Pin DE of described difference chip U2, / RE connects the control signal mouth of described functional module simultaneously, described resistance R8 is connected on described Enable Pin DE, between the public connecting end of/RE and ground.
4. a battery-driven car, comprise a bus system, described bus system comprises the motor, control module and the functional module that connect successively, described functional module comprises current indicating signal module and rate indicative signal module, two buses are adopted to connect between described control module and functional module, it is characterized in that, described bus control system also comprises:
Be positioned at bus two ends, be connected with functional module with described control module respectively, former signal transmission be converted into the first difference channel module and the second difference channel module that differential signal carries out transmitting.
5. battery-driven car as claimed in claim 4, is characterized in that: described first difference channel module comprises difference chip U1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2 and electric capacity C3;
The input end D of described difference chip U1, mouth R connects the first mouth and second mouth of described control module respectively, between the input end D that described resistance R1 is connected on described difference chip U1 and direct supply, between the mouth R that described resistance R2 is connected on described difference chip U1 and direct supply, two Enable Pin DE of described difference chip U1, / RE connects the control signal mouth of described control module simultaneously, described resistance R3 is connected on described Enable Pin DE, between the public connecting end of/RE and ground, the ground terminal ground connection of described difference chip U1, the power end VCC of described difference chip U1 connects direct supply, between the power end VCC that described electric capacity C3 is connected on described difference chip U1 and ground, two input/output terminal A of described difference chip U1, B connects described bus respectively, described resistance R4, between the input/output terminal A that electric capacity C1 is attempted by described difference chip U1 respectively and direct supply, described resistance R5, between the input/output terminal B that electric capacity C2 is attempted by described difference chip U1 respectively and ground.
6. the battery-driven car as described in claim 4 or 5, is characterized in that: described second difference channel module comprises difference chip U2, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, electric capacity C4, electric capacity C5 and electric capacity C6;
Two input/output terminal A of described difference chip U2, B connects described bus respectively, described resistance R9, between the input/output terminal A that electric capacity C4 is attempted by described difference chip U2 respectively and direct supply, described resistance R10, between the input/output terminal B that electric capacity C5 is attempted by described difference chip U2 respectively and ground, the ground terminal GND ground connection of described difference chip U2, the power end VCC of described difference chip U2 connects direct supply, between the power end VCC that described electric capacity C6 is connected on described difference chip U2 and ground, the input end D of described difference chip U2, mouth R connects first input end and second input end of described functional module respectively, between the input end D that described resistance R6 is connected on described difference chip U2 and direct supply, between the mouth R that described resistance R7 is connected on described difference chip U2 and direct supply, two Enable Pin DE of described difference chip U2, / RE connects the control signal mouth of described functional module simultaneously, described resistance R8 is connected on described Enable Pin DE, between the public connecting end of/RE and ground.
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| CN201210207021.1A CN103507658B (en) | 2012-06-21 | 2012-06-21 | Battery-driven car and bus control system thereof |
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| CN201210207021.1A CN103507658B (en) | 2012-06-21 | 2012-06-21 | Battery-driven car and bus control system thereof |
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| CN103507658B true CN103507658B (en) | 2016-01-27 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104149659B (en) * | 2014-08-20 | 2016-04-13 | 成都宽和科技有限责任公司 | Want the digital differential boosted vehicle system of gear and speed signal priority input difference device |
| CN104149649B (en) * | 2014-08-20 | 2016-04-13 | 成都宽和科技有限责任公司 | The digital differential that speed signal adds model processor controls force aid system |
| CN111145701B (en) * | 2020-01-02 | 2022-04-26 | 京东方科技集团股份有限公司 | Voltage adjusting method and device of display panel and display panel |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2093282A (en) * | 1981-02-13 | 1982-08-25 | Borg Warner | Protection system for immunizing an ac-dc-ac converter system against a-c voltage disturbances |
| CN202703315U (en) * | 2012-06-21 | 2013-01-30 | 深圳市高标电子科技有限公司 | Electric vehicle and bus control system thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2093282A (en) * | 1981-02-13 | 1982-08-25 | Borg Warner | Protection system for immunizing an ac-dc-ac converter system against a-c voltage disturbances |
| CN202703315U (en) * | 2012-06-21 | 2013-01-30 | 深圳市高标电子科技有限公司 | Electric vehicle and bus control system thereof |
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Address after: No. 3 Gongye West Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Gaobiao Intelligent Technology Co.,Ltd. Address before: No.3, Gongye West Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: SHENZHEN GOBAO ELECTRONIC TECHNOLOGY Co.,Ltd. |