CN202703314U - Electric vehicle and bus control system thereof - Google Patents
Electric vehicle and bus control system thereof Download PDFInfo
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- CN202703314U CN202703314U CN 201220294380 CN201220294380U CN202703314U CN 202703314 U CN202703314 U CN 202703314U CN 201220294380 CN201220294380 CN 201220294380 CN 201220294380 U CN201220294380 U CN 201220294380U CN 202703314 U CN202703314 U CN 202703314U
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Abstract
The utility model belongs to the field of electric devices, in particular to an electric vehicle and a bus control system thereof. Two voltage conversion modules are additionally arranged in the existing bus control system, respectively connected between a control module and a bus and between a function module and the bus and used for improving amplitude values of transmission signals of an existing bus. The transmission signals of the existing bus are sent by a signal sending end, the amplitude values of the transmission signals are improved to be one value through one voltage conversion module and transmitted to the other voltage conversion module through the bus, and the voltage conversion module restores the signal amplitude value to the original value and sends the original value to a receiving end. According to the electric vehicle and the bus control system thereof, interference resistance of electric vehicle bus control is greatly improved and normal use and maintenance of the electric vehicle are achieved.
Description
Technical field
The utility model belongs to field of electrical equipment, relates in particular 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, instrument module and other external equipment, and common these equipment that link to each other with control module are distributed on the two ends of battery-driven car in fitting process.And in the control system of existing battery-driven car except hall signal line, motor lines, also comprise at least one of control line of brake, three three of fast control lines, one of electric current indicatrix, one of speed indicatrix, and may comprise other function control line etc., it is very complicated to connect up.In order to simplify the cabling in the battery-driven car assembling process, 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, be two wires that bus control system comprises a control module, functional module and link control module and functional module, also namely replace traditional complicated wire harness with two wires, two wires here are defined as bus.In addition, the control module in the control system still directly links to each other with motor, and functional module comprises electric current indication, speed indication and other signals etc.
But, such scheme is at anti-EMI(Electromagnetic Interference, electromagnetic interference, be called for short EMI) there is defective in the aspect, if in the process of riding by the iron loudspeaker, the disturbing pulse signal will produce the signal transmission on two buses and disturb, probably make functional module receive wrong signal, cause the battery-driven car speed governing invalid or stop the phenomenons such as driving, have a strong impact on the normal use of battery-driven car, even cause a series of safety misadventure.
The utility model content
The purpose of this utility model 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, is intended to solve the technical matters of former bus control system signal transmission poor anti jamming capability.
To achieve these goals, the utility model 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 indication, speed indication, adopt the first bus between described control module and the functional module and be connected the bus connection, as improvement, described bus control system also comprises:
Be positioned at described first, second bus two ends, the first voltage transformation module and the second voltage modular converter that link to each other with described functional module with described control module respectively, the signal amplitude that transmits in described bus is changed.
Further, described the first voltage transformation module comprises: NPN type aerotron Q1, NPN type aerotron Q2, NPN type aerotron Q3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, diode D1, diode D2, capacitor C 1 and capacitor C 2;
The base stage of described NPN type aerotron Q2 connects the first mouth of described control module by described resistance R 1, the collecting electrode of described NPN type aerotron Q2 connects the first direct supply by described resistance R 2, the grounded emitter of described NPN type aerotron Q2, the collecting electrode of described NPN type aerotron Q1 directly connects described the first direct supply, the base stage of described NPN type aerotron Q1 connects the collecting electrode of described NPN type aerotron Q2, the emitter of described NPN type aerotron Q1 connects the anode of described diode D2, after connecing altogether, the anode of the negative electrode of described diode D2 and described diode D1 connects the first end of described the first bus, the negative electrode of described diode D1 connects the collecting electrode of described NPN type aerotron Q2, and described capacitor C 1 is connected between the negative electrode and ground of described diode D2; The collecting electrode of described NPN type aerotron Q3 connects the second direct supply by described resistance R 3, the collecting electrode of described NPN type aerotron Q3 and the public connecting end of described resistance R 3 connect the second mouth of described control module, the base stage of described NPN type aerotron Q3 connects the first end of described resistance R 4, the first end of described second bus of the second termination of described resistance R 4, the grounded emitter of described NPN type aerotron Q3, described resistance R 5 is connected between the base stage and ground of described NPN type aerotron Q3, and described capacitor C 2 is connected between second end and ground of described resistance R 4.
Further, described second voltage modular converter comprises: NPN type aerotron Q4, NPN type aerotron Q5, NPN type aerotron Q6, resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, diode D3, diode D4, capacitor C 3 and capacitor C 4;
The base stage of described NPN type aerotron Q4 connects the second end of described the first bus by described resistance R 7, the grounded emitter of described NPN type aerotron Q4, described resistance R 8 is connected between the base stage and ground of described NPN type aerotron Q4, described capacitor C 3 is connected between second end and ground of described the first bus, the collecting electrode of described NPN type aerotron Q4 connects the first input end of described functional module and the first end of described resistance R 6 simultaneously, the second termination the 4th direct supply of described resistance R 6; The collecting electrode of described NPN type aerotron Q5 connects the 3rd direct supply, the base stage of described NPN type aerotron Q5 connects described the 3rd direct supply by described resistance R 9, the emitter of described NPN type aerotron Q5 connects the anode of described diode D4, the negative electrode of described diode D4 connects the second end of described the second bus and the anode of described diode D3 simultaneously, described capacitor C 4 is connected between the negative electrode and ground of described diode D4, the negative electrode of described diode D3 connects the base stage of described NPN type aerotron Q5 and the collecting electrode of described NPN type aerotron Q6 simultaneously, the grounded emitter of described NPN type aerotron Q6, the base stage of described NPN type aerotron Q6 connects the second input end of described functional module by described resistance R 10.
Another purpose of the present utility model is to provide a kind of battery-driven car, includes but not limited to battery-operated motor cycle and Electrical Bicycle, and described battery-driven car comprises aforesaid bus control system.
The battery-driven car that the utility model provides and bus control system thereof, in original bus control system, add two voltage transformation modules, lay respectively at original two bus two ends, link control module and functional modules, former bus transfer signal is sent by signal sending end (being control module or functional module), through voltage transformation module its amplitude is risen to a value, make the interference of extraneous impulse singla be not enough to change logical zero or the logical one state of original signal, then through two bus transfer to another voltage transformation module.The voltage transformation module of this receiving end returns to initial value with signal amplitude and sends receiving end (corresponding functional module or control module) to again.Wherein, signal during bus transmission, though extraneous pulse jamming still causes interference to the signal transmission on the bus, because of the amplitude of bus transfer signal enough high, interfering signal is not enough to have influence on the judgement of subsequent logic " 0 " or " 1 " value, reaches jamproof purpose with this.
Description of drawings
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 the utility model embodiment provides;
Fig. 3 is the first voltage transformation module of providing of the utility model embodiment and the example electronic devices and components figure of second voltage modular converter.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In the actual production of battery-driven car, consider Cost Problems, the signal wire (SW) that existing bus control system adopts is two common wires, in fact, institute is disturbed and still exists when adopting its itself to have the wire of anti-interference function such as shielding wire etc., and the pickup electrode that transmits at signal wire (SW) is vulnerable to the interference of extraneous impulse singla and causes the transmission of data mistake.By some emulation experiments, can find out significantly that original signal high level can occur and be dragged down, the phenomenon that low level is drawn high under extraneous impulse singla disturbs.
The utility model embodiment adds two voltage transformation modules in original bus control system, voltage transformation module is connected between control module and bus, functional module and the bus, is used for promoting the amplitude of former bus transfer signal.Former bus transfer signal is sent by signal sending end, through voltage transformation module its amplitude is risen to a value, then arrive another voltage transformation module through bus transfer, this voltage transformation module sends receiving end to after signal amplitude is returned to initial value again, greatly improve the antijamming capability of the total line control of battery-driven car, realized the normal operation and maintenance of battery-driven car.
Fig. 2 is the structured flowchart of the battery-driven car bus control system that provides of the utility model embodiment, for convenience of explanation, only shows the part relevant with the utility model embodiment.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 directly links to each other with control module 200, functional module 300 comprises the signaling modules such as electric current indication, speed indication, adopt two buses to connect between control module 200 and the functional module 300, respectively called after the first bus and the second bus.As an embodiment of the present utility model, bus control system also comprises two voltage transformation modules that lay respectively at the bus two ends, respectively to carry out the signal transmission by the first bus and the second bus between the first voltage transformation module 401 that links to each other with control module 200 and second voltage modular converter 402, the first voltage transformation modules 401 that link to each other with functional module 300 and the second voltage modular converter 402.
Former bus transfer signal is sent by signal sending end (being assumed to be control module 200), through the first voltage transformation module 401 its amplitude is risen to a value, then through the first bus and the second bus transfer to corresponding second voltage modular converter 402, second voltage modular converter 402 sends receiving end (corresponding functional module 300) to after the signal amplitude that receives being reduced, returns to the standard of initial value again.
Similarly, the output signal of functional module 300 is after second voltage modular converter 402 promotes amplitude, send again control module 200 to corresponding the first voltage transformation module 401, the first voltage transformation modules 401 signal amplitude that receives is reduced, returns to the standard of initial value by the first bus and the second bus transfer after.
Fig. 3 is the first voltage transformation module of providing of the utility model embodiment and the example electronic devices and components figure of second voltage modular converter; For convenience of explanation, only show the part relevant with the utility model embodiment.As shown in the figure:
The first voltage transformation module 401 comprises: NPN type aerotron Q1, NPN type aerotron Q2, NPN type aerotron Q3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, diode D1, diode D2, capacitor C 1 and capacitor C 2;
The base stage of NPN type aerotron Q2 connects the first mouth of control module 200 by resistance R 1, the collecting electrode of NPN type aerotron Q2 meets the first direct supply V1 by resistance R 2, the grounded emitter of NPN type aerotron Q2, the collecting electrode of NPN type aerotron Q1 meets the first direct supply V1, the base stage of NPN type aerotron Q1 connects the collecting electrode of NPN type aerotron Q2, the emitter of NPN type aerotron Q1 connects the anode of diode D2, after connecing altogether, the anode of the negative electrode of diode D2 and diode D1 connects the first end of the first bus, the negative electrode of diode D1 connects the collecting electrode of NPN type aerotron Q2, and capacitor C 1 is connected between the negative electrode and ground of diode D2; The collecting electrode of NPN type aerotron Q3 meets the second direct supply V2 by resistance R 3, the collecting electrode of NPN type aerotron Q3 and the public connecting end of resistance R 3 connect the second mouth of control module 200, the first end of the base stage connecting resistance R4 of NPN type aerotron Q3, the first end of the second termination second bus of resistance R 4, the grounded emitter of NPN type aerotron Q3, resistance R 5 is connected between the base stage and ground of NPN type aerotron Q3, and capacitor C 2 is connected between second end and ground of resistance R 4.
Second voltage modular converter 402 comprises: NPN type aerotron Q4, NPN type aerotron Q5, NPN type aerotron Q6, resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, diode D3, diode D4, capacitor C 3 and capacitor C 4;
The base stage of NPN type aerotron Q4 connects the second end of the first bus by resistance R 7, the grounded emitter of NPN type aerotron Q4, resistance R 8 is connected between the base stage and ground of NPN type aerotron Q4, capacitor C 3 is connected between second end and ground of the first bus, the first input end of the collecting electrode while connection function module 300 of NPN type aerotron Q4 and the first end of resistance R 6, the second termination the 4th direct supply V4 of resistance R 6; The collecting electrode of NPN type aerotron Q5 meets the 3rd direct supply V3, the base stage of NPN type aerotron Q5 meets the 3rd direct supply V3 by resistance R 9, the emitter of NPN type aerotron Q5 connects the anode of diode D4, the negative electrode of diode D4 connects the second end of the second bus and the anode of diode D3 simultaneously, capacitor C 4 is connected between the negative electrode and ground of diode D4, the negative electrode of diode D3 connects the base stage of NPN type aerotron Q5 and the collecting electrode of NPN type aerotron Q6 simultaneously, the grounded emitter of NPN type aerotron Q6, the base stage of NPN type aerotron Q6 is by the second input end of resistance R 10 connection function modules 300.
As a preferred embodiment of the present utility model, the first and the 3rd direct supply all is+direct supply of 48V, the second and the 4th direct supply all is+and the direct supply of 5V.
The experiment proved that the amplitude of external electromagnetic pulse jamming has a scope, when the amplitude of signal transmission on the wire was within the twice of interfering signal amplitude, signal transmission very easily was subject to the interference of external electromagnetic impulse singla, causes error of transmission; When the amplitude of wire transmission signal when the twice of noise amplitudes is above, the external electromagnetic pulse is not enough to have influence on follow-up judgement to signal logic " 0 ", logical one state to the interference that original signal produces.
On the other hand, only carrying out the signal transmission with two wires and do not taking in the bus control system of corresponding interference protection measure, under the interference of this a kind of interference source of iron loudspeaker, the bit error ratio of signal transmission is just up to more than 90%; And in existing bus control system, add after two voltage transformation module circuit, promoted the amplitude of signal transmission, the bit error ratio is just fallen below 0.5%, add in the practical application and all can in the signal that transmits, add check bit, the bit error ratio is low to moderate below 0.05%, almost can ignore, improve largely the antijamming capability that adopts the battery-driven car of bus control system scheme.
As preferred embodiment of the present utility model, the amplitude of former bus transfer signal can be promoted to more than the twice of external electromagnetic pulse interference signal amplitude, make the interference of extraneous impulse singla be not enough to change logical zero or the logical one state of original signal.
The utility model embodiment also provides a kind of battery-driven car, and this battery-driven car comprises such as the described bus control system of the utility model above-described embodiment, and the kind of battery-driven car includes but not limited to battery-operated motor cycle and Electrical Bicycle.
The battery-driven car that the utility model embodiment provides and bus control system thereof, in original bus control system, add two voltage transformation modules, lay respectively at original bus two ends, difference link control module and functional module, the mode that namely utilize to promote the bus transfer signal replication efficiently solves in the bus control system bus transfer signal and is subject to EMI and disturbs and the problem of control disorder, reach jamproof purpose, make battery-driven car bus control system scheme more safe and reliable.
The above only is preferred embodiment of the present utility model, not in order to limit the utility model, although with reference to previous embodiment the utility model has been carried out more detailed explanation, for a person skilled in the art, it still can be made amendment or part technical characterictic wherein is equal to replacement the technical scheme that aforementioned each embodiment puts down in writing.All any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
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 the signaling modules such as electric current indication, speed indication, adopt the first bus between described control module and the functional module and be connected the bus connection, it is characterized in that described bus control system also comprises:
Be positioned at described first, second bus two ends, the first voltage transformation module and the second voltage modular converter that link to each other with described functional module with described control module respectively, the signal amplitude that transmits in described bus is changed.
2. bus control system as claimed in claim 1, it is characterized in that described the first voltage transformation module comprises: NPN type aerotron Q1, NPN type aerotron Q2, NPN type aerotron Q3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, diode D1, diode D2, capacitor C 1 and capacitor C 2;
The base stage of described NPN type aerotron Q2 connects the first mouth of described control module by described resistance R 1, the collecting electrode of described NPN type aerotron Q2 connects the first direct supply by described resistance R 2, the grounded emitter of described NPN type aerotron Q2, the collecting electrode of described NPN type aerotron Q1 directly connects described the first direct supply, the base stage of described NPN type aerotron Q1 connects the collecting electrode of described NPN type aerotron Q2, the emitter of described NPN type aerotron Q1 connects the anode of described diode D2, after connecing altogether, the anode of the negative electrode of described diode D2 and described diode D1 connects the first end of described the first bus, the negative electrode of described diode D1 connects the collecting electrode of described NPN type aerotron Q2, and described capacitor C 1 is connected between the negative electrode and ground of described diode D2;
The collecting electrode of described NPN type aerotron Q3 connects the second direct supply by described resistance R 3, the collecting electrode of described NPN type aerotron Q3 and the public connecting end of described resistance R 3 connect the second mouth of described control module, the base stage of described NPN type aerotron Q3 connects the first end of described resistance R 4, the first end of described second bus of the second termination of described resistance R 4, the grounded emitter of described NPN type aerotron Q3, described resistance R 5 is connected between the base stage and ground of described NPN type aerotron Q3, and described capacitor C 2 is connected between second end and ground of described resistance R 4.
3. bus control system as claimed in claim 1 or 2, it is characterized in that described second voltage modular converter comprises: NPN type aerotron Q4, NPN type aerotron Q5, NPN type aerotron Q6, resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, diode D3, diode D4, capacitor C 3 and capacitor C 4;
The base stage of described NPN type aerotron Q4 connects the second end of described the first bus by described resistance R 7, the grounded emitter of described NPN type aerotron Q4, described resistance R 8 is connected between the base stage and ground of described NPN type aerotron Q4, described capacitor C 3 is connected between second end and ground of described the first bus, the collecting electrode of described NPN type aerotron Q4 connects the first input end of described functional module and the first end of described resistance R 6 simultaneously, the second termination the 4th direct supply of described resistance R 6;
The collecting electrode of described NPN type aerotron Q5 connects the 3rd direct supply, the base stage of described NPN type aerotron Q5 connects described the 3rd direct supply by described resistance R 9, the emitter of described NPN type aerotron Q5 connects the anode of described diode D4, the negative electrode of described diode D4 connects the second end of described the second bus and the anode of described diode D3 simultaneously, described capacitor C 4 is connected between the negative electrode and ground of described diode D4, the negative electrode of described diode D3 connects the base stage of described NPN type aerotron Q5 and the collecting electrode of described NPN type aerotron Q6 simultaneously, the grounded emitter of described NPN type aerotron Q6, the base stage of described NPN type aerotron Q6 connects the second input end of described functional module by described resistance R 10.
4. battery-driven car, comprise a bus system, described bus system comprises motor, control module and the functional module that connects successively, described functional module comprises the signaling modules such as electric current indication, speed indication, adopt the first bus between described control module and the functional module and be connected the bus connection, it is characterized in that described bus control system also comprises:
Be positioned at the first voltage transformation module and second voltage modular converter described first, second bus two ends, that link to each other with described functional module with described control module respectively, that the signal amplitude that transmits in described bus is changed.
5. battery-driven car as claimed in claim 4, it is characterized in that: described the first voltage transformation module comprises: NPN type aerotron Q1, NPN type aerotron Q2, NPN type aerotron Q3, resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, diode D1, diode D2, capacitor C 1 and capacitor C 2;
The base stage of described NPN type aerotron Q2 connects the first mouth of described control module by described resistance R 1, the collecting electrode of described NPN type aerotron Q2 connects the first direct supply by described resistance R 2, the grounded emitter of described NPN type aerotron Q2, the collecting electrode of described NPN type aerotron Q1 directly connects described the first direct supply, the base stage of described NPN type aerotron Q1 connects the collecting electrode of described NPN type aerotron Q2, the emitter of described NPN type aerotron Q1 connects the anode of described diode D2, after connecing altogether, the anode of the negative electrode of described diode D2 and described diode D1 connects the first end of described the first bus, the negative electrode of described diode D1 connects the collecting electrode of described NPN type aerotron Q2, and described capacitor C 1 is connected between the negative electrode and ground of described diode D2;
The collecting electrode of described NPN type aerotron Q3 connects the second direct supply by described resistance R 3, the collecting electrode of described NPN type aerotron Q3 and the public connecting end of described resistance R 3 connect the second mouth of described control module, the base stage of described NPN type aerotron Q3 connects the first end of described resistance R 4, the first end of described second bus of the second termination of described resistance R 4, the grounded emitter of described NPN type aerotron Q3, described resistance R 5 is connected between the base stage and ground of described NPN type aerotron Q3, and described capacitor C 2 is connected between second end and ground of described resistance R 4.
6. such as claim 4 or 5 described battery-driven cars, it is characterized in that described second voltage modular converter comprises: NPN type aerotron Q4, NPN type aerotron Q5, NPN type aerotron Q6, resistance R 6, resistance R 7, resistance R 8, resistance R 9, resistance R 10, diode D3, diode D4, capacitor C 3 and capacitor C 4;
The base stage of described NPN type aerotron Q4 connects the second end of described the first bus by described resistance R 7, the grounded emitter of described NPN type aerotron Q4, described resistance R 8 is connected between the base stage and ground of described NPN type aerotron Q4, described capacitor C 3 is connected between second end and ground of described the first bus, the collecting electrode of described NPN type aerotron Q4 connects the first input end of described functional module and the first end of described resistance R 6 simultaneously, the second termination the 4th direct supply of described resistance R 6;
The collecting electrode of described NPN type aerotron Q5 connects the 3rd direct supply, the base stage of described NPN type aerotron Q5 connects described the 3rd direct supply by described resistance R 9, the emitter of described NPN type aerotron Q5 connects the anode of described diode D4, the negative electrode of described diode D4 connects the second end of described the second bus and the anode of described diode D3 simultaneously, described capacitor C 4 is connected between the negative electrode and ground of described diode D4, the negative electrode of described diode D3 connects the base stage of described NPN type aerotron Q5 and the collecting electrode of described NPN type aerotron Q6 simultaneously, the grounded emitter of described NPN type aerotron Q6, the base stage of described NPN type aerotron Q6 connects the second input end of described functional module by described resistance R 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201220294380 CN202703314U (en) | 2012-06-21 | 2012-06-21 | Electric vehicle and bus control system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220294380 CN202703314U (en) | 2012-06-21 | 2012-06-21 | Electric vehicle and bus control system thereof |
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| CN202703314U true CN202703314U (en) | 2013-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507657A (en) * | 2012-06-21 | 2014-01-15 | 广东高标电子科技有限公司 | Electric vehicle and bus control system thereof |
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- 2012-06-21 CN CN 201220294380 patent/CN202703314U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103507657A (en) * | 2012-06-21 | 2014-01-15 | 广东高标电子科技有限公司 | Electric vehicle and bus control system thereof |
| CN103507657B (en) * | 2012-06-21 | 2016-05-25 | 广东高标电子科技有限公司 | Electric motor car and bus control system thereof |
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Owner name: GUANGDONG GOBAO ELECTRONIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN GAOBIAO ELECTRONIC TECHNOLOGY CO., LTD. |
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Address after: Industrial Road, Songshan Lake high tech Industrial Development Zone of Guangdong Province, Dongguan City, No. 3, 523000 Patentee after: Guangdong Gobao Electronic Technology Co., Ltd. Address before: Villageroad Industrial Zone A4, Longgang District of Shenzhen City, Guangdong province 518000 2 floor Patentee before: Shenzhen Gaobiao Electronic Technology Co., Ltd. |
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Granted publication date: 20130130 Effective date of abandoning: 20160525 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |