CN103809466A - Controller signal processing apparatus compatible with dual-voltage - Google Patents
Controller signal processing apparatus compatible with dual-voltage Download PDFInfo
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- CN103809466A CN103809466A CN201210436874.2A CN201210436874A CN103809466A CN 103809466 A CN103809466 A CN 103809466A CN 201210436874 A CN201210436874 A CN 201210436874A CN 103809466 A CN103809466 A CN 103809466A
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Abstract
This invention discloses a controller signal processing apparatus compatible with dual-voltage, comprising a reception terminal, a voltage-dividing module, and a control module. The reception terminal is used for receiving an input signal, wherein the input signal is one of a first voltage signal and a second voltage signal. The voltage-dividing module is used for generating voltage-dividing signals by performing voltage dividing on the input signal. The control module is connected to the voltage-dividing module. The control module possesses an A/D converter which converts the voltage-dividing signals to digital signals. The control module performs determination on the input signal according to the comparison result between the chosen high and low thresholds and the digital signal. The controller signal processing apparatus compatible with dual-voltage enables the dual-voltage system vehicle to use the same model vehicle control unit, which greatly reduces the development cost and improves the reliability.
Description
Technical field
The present invention relates to Control of Electric Vehicles technical field, particularly the controller signals treating apparatus of the two voltages of a kind of compatibility.
Background technology
Entire car controller is the core control part of whole electric automobile, it gathers after the signal of gear signal, accelerator pedal signal, brake pedal signal and miscellaneous part, make corresponding judgement, control the action of each controller of lower floor, coordinate function conversion and energy distribution between electric machine control system, battery management system, charge control system, DC-DC, brake system.Therefore, entire car controller plays a part crucial at the aspect such as state and supervision of normally the travelling of electric automobile, network management, fault diagnosis and processing, vehicle.
The rated voltage of electric automobile electrical system generally has two kinds of 12V and 24V, execution unit in system is to design according to the voltage standard of 12V and 24V respectively, and these execution units input to the voltage range of the signal of entire car controller and understand the difference because of the difference of rated voltage.For entire car controller, can not adopt and process in the same way these signals.Therefore,, in existing technology application, different electrical systems all needs to redesign controller.Need independent CONTROLLER DESIGN for the electrical system of 12V and 24V like this, this is just equivalent to two project developments.
The shortcoming that prior art exists is, for the entire car controller of two kinds of systems, all will experience the work such as exploitation necessary principle diagram design, PCB design, code are write, testing authentication, production, greatly wasted human and material resources and time cost.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency.
For this reason, the object of the invention is to propose the controller signals treating apparatus of the two voltages of a kind of compatibility, the vehicle of two electrical voltage systems can be used with a entire car controller, greatly saved cost of development, reliability is also high.
For achieving the above object, the controller signals treating apparatus of the two voltages of compatibility that embodiments of the invention propose, comprising: receiving end, and for receiving input signal, wherein, described input signal is in the first voltage signal and second voltage signal; Division module, for carrying out dividing potential drop to generate voltage division signal to described input signal; And control module, described control module is connected with described division module, described control module has A/D converter, described A/D converter converts described voltage division signal to digital signal, and described control module judges described input signal according to the height threshold value of selecting and the comparative result of described digital signal.
According to the controller signals treating apparatus of the two voltages of the compatibility of the embodiment of the present invention, the processing to input signal by control module and division module, the vehicle of two electrical voltage systems can be used with a entire car controller, not only saved a large amount of cost of development, the safe reliability of precision, versatility and the system of data processing is also improved significantly.
In one embodiment of the invention, described input signal is digital input signals or analog input signal.
Wherein, described height threshold value is by demarcating and obtain described control module.
In the software of control module, demarcate height threshold value according to actual conditions, thereby input signal is judged, greatly improved the precision of judgement.
Further, described division module comprises: the first resistance, and one end of described the first resistance is connected with described receiving end; And second resistance, one end of described the second resistance is connected with the other end of described the first resistance, the other end ground connection of described the second resistance.
And the resistance of described the first resistance is greater than the resistance of described the second resistance.
In one embodiment of the invention, the controller signals treating apparatus of the described two voltages of compatibility, also comprises: the 3rd resistance, and one end ground connection of described the 3rd resistance, the other end of described the 3rd resistance is connected with described receiving end.
In another embodiment of the present invention, the controller signals treating apparatus of the described two voltages of compatibility, also comprises: the filter capacitor in parallel with described the second resistance.
The aspect that the present invention is additional and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments obviously and easily and understand, wherein:
Fig. 1 is according to the circuit diagram of the controller signals treating apparatus of the two voltages of the compatibility of the embodiment of the present invention.
Embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Disclosing below provides many different embodiment or example to be used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts to specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can be in different examples repeat reference numerals and/or letter.This repetition is in order to simplify and object clearly, itself do not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique the invention provides and the example of material, but those of ordinary skills can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, First Characteristic described below Second Characteristic it " on " structure can comprise that the first and second Characteristics creations are the direct embodiment of contact, also can comprise the embodiment of other Characteristics creation between the first and second features, such the first and second features may not be direct contacts.
In description of the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be to be directly connected, and also can indirectly be connected by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
With reference to description and accompanying drawing below, these and other aspects of embodiments of the invention will be known.In these descriptions and accompanying drawing, specifically disclose some specific implementations in embodiments of the invention, represent some modes of the principle of implementing embodiments of the invention, but should be appreciated that the scope of embodiments of the invention is not limited.On the contrary, embodiments of the invention comprise all changes, modification and the equivalent within the scope of spirit and the intension that falls into additional claims.
Conventionally, in the prior art, for two electrical voltage systems of 12V and 24V, MCU(Micro Control Unit, microcontroller) can be 0.65*Vcc to the decision threshold of high level, low level decision threshold can be 0.35*Vcc, the supply voltage that wherein Vcc is MCU.Be described further as an example of the effective digital input signals of height example below.
For a high effective digital input signals, the common I/O mouth of access MCU gathers.While being applied in 12V system, get suitable intrinsic standoff ratio, make the corresponding 0.65*Vcc of digital input signals of 11V, get Vcc=5V, be 3.25V, in the time that input signal is greater than 11V, what think input is high level so.In the time that input signal is 18.46V, the magnitude of voltage after sampling bleeder circuit dividing potential drop is 18.46V*(3.25/12)=5V.If while being applied in 24V system, equally also can think that the signal that is greater than 11V is exactly high level, and input signal MCU in the situation that being greater than 18.46V just reaches full scale, such design is irrational.
This just need to propose the controller signals treating apparatus of the two voltages of a kind of compatibility that can address the above problem, and describes with reference to the accompanying drawings the controller signals treating apparatus of the two voltages of compatibility that propose according to the embodiment of the present invention.
As shown in Figure 1, the controller signals treating apparatus of the two voltages of this compatibility comprises receiving end 10, division module 11 and control module 12.
The controller signals treating apparatus of the two voltages of this compatibility receives input signal by receiving end 10, and wherein, input signal is in the first voltage signal and second voltage signal.Division module 11 is for carrying out dividing potential drop to generate voltage division signal to input signal.Control module 12 is connected with division module 11, and control module 12 has A/D converter 13, A/D converter 13 is that input voltage converts digital signal to by voltage division signal, after converting, control module 12 judges input signal according to the height threshold value of selecting and the comparative result of digital signal.I.e. speech, control module 12 judges that according to the height threshold value arranging input signal is high level or low level.
In one embodiment of the invention, the input signal receiving by receiving end 10, for can digital input signals, can be also analog input signal.And the height threshold value that control module 12 is selected can be demarcated acquisition by the software in control module 12.
In the software of control module, demarcate height threshold value according to actual conditions, thereby input signal is judged, greatly improved the precision of judgement.
In an example of the present invention, control module 12 can be MCU.
Particularly, in an embodiment of the present invention, as shown in Figure 1, division module 11 comprises the first resistance R 1 and the second resistance R 2.Wherein, one end of the first resistance R 1 is connected with receiving end 10, and one end of the second resistance R 2 is connected with the other end of the first resistance R 1, the other end ground connection of the second resistance R 2.In the present embodiment, the resistance of the first resistance R 1 is greater than the resistance of the second resistance R 2, and for example R1 can be 100K ohm, and R2 can be 20K ohm.
In addition, in an embodiment of the present invention, as shown in Figure 1, the controller signals treating apparatus of the two voltages of this compatibility also comprises the 3rd resistance R 3 and filter capacitor C1.Wherein, the 3rd resistance R 3 is pull down resistors, its one end ground connection, and the other end of the 3rd resistance R 3 is connected with receiving end 10, and filter capacitor C1 is with second resistance R 2 is parallel with one another is connected.
In one embodiment of the invention, in the time that input signal is digital signal, the A/D converter mouth of digital signal being regarded as to simulating signal access MCU gathers, and in the software of MCU, sets high level and low level threshold value.In the present embodiment, for staying certain surplus, division module 11 adopts the intrinsic standoff ratio of 1:6, and R1 value is 100K ohm, and R2 value is 20K ohm, and the digital signal input range can read can be 0 ~ 30V.
In this embodiment, for 12V system, can define 8V is high level above, and 4V is low level below.In software, the lower limit that the AD value that 8V is corresponding is high level, the AD value that 4V is corresponding is low level higher limit, relatively, judgement output is high level or low level to AD value that A/D converter the collects AD value corresponding with 8V and 4V.For 24V system, can define 15.5V is high level above, and 8.14V is low level below.In software, the lower limit that the AD value that 15.5V is corresponding is high level, the AD value that 8.14V is corresponding is low level higher limit, relatively, judgement output is high level or low level to AD value that A/D converter the collects AD value corresponding with 15.5V and 8.14V.
In this embodiment of the present invention, the controller signals treating apparatus of two voltages of this compatibility 12V and 24V system just digital input signals is regarded analog quantity as, and adopts the A/D mouth of MCU to gather.Meanwhile, division module 11 adopts the way of 100K Ohmage R1 and 20K Ohmage R2 dividing potential drop, and the input signal in 12V and 24V system can accurately be detected.And for the judgement of the high and low level of digital input signals, realize by software, and the threshold value of high and low level is demarcated in software according to actual conditions.In addition, the circuit form of the controller signals treating apparatus of two voltages of this compatibility 12V and 24V system had both been applicable to digital signal, was also applicable to simulating signal.
According to the controller signals treating apparatus of the two voltages of the compatibility of the embodiment of the present invention, the processing to input signal by control module 12 and division module 11, the vehicle of two electrical voltage systems can be used with a entire car controller, not only saved a large amount of cost of development, and the safe reliability of the precision of data processing, versatility and system also obtains improving significantly.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a processing module, can be also that the independent physics of unit exists, and also can be integrated in a module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and also can adopt the form of software function module to realize.If described integrated module realizes and during as production marketing independently or use, also can be stored in a computer read/write memory medium using the form of software function module.
The above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
In the description of this instructions, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (7)
1. a controller signals treating apparatus for the two voltages of compatibility, is characterized in that, comprising:
Receiving end, for receiving input signal, wherein, described input signal is in the first voltage signal and second voltage signal;
Division module, for carrying out dividing potential drop to generate voltage division signal to described input signal; And
Control module, described control module is connected with described division module, described control module has A/D converter, described A/D converter converts described voltage division signal to digital signal, and described control module judges described input signal according to the height threshold value of selecting and the comparative result of described digital signal.
2. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 1, is characterized in that, described input signal is digital input signals or analog input signal.
3. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 1, is characterized in that, described height threshold value is by demarcating and obtain described control module.
4. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 1, is characterized in that, described division module comprises:
The first resistance, one end of described the first resistance is connected with described receiving end; And
The second resistance, one end of described the second resistance is connected with the other end of described the first resistance, the other end ground connection of described the second resistance.
5. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 4, is characterized in that, the resistance of described the first resistance is greater than the resistance of described the second resistance.
6. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 4, is characterized in that, also comprises:
The 3rd resistance, one end ground connection of described the 3rd resistance, the other end of described the 3rd resistance is connected with described receiving end.
7. the controller signals treating apparatus of the two voltages of compatibility as claimed in claim 4, is characterized in that, also comprises:
The filter capacitor in parallel with described the second resistance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210436874.2A CN103809466A (en) | 2012-11-05 | 2012-11-05 | Controller signal processing apparatus compatible with dual-voltage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210436874.2A CN103809466A (en) | 2012-11-05 | 2012-11-05 | Controller signal processing apparatus compatible with dual-voltage |
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| CN103809466A true CN103809466A (en) | 2014-05-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291874A (en) * | 2015-10-28 | 2016-02-03 | 北京新能源汽车股份有限公司 | Vehicle control unit, signal processing method and signal processing device thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876983U (en) * | 2010-09-27 | 2011-06-22 | 河南新天科技股份有限公司 | M-BUS/wireless intelligent multi-protocol terminal |
| CN102298345A (en) * | 2011-05-20 | 2011-12-28 | 深圳市骏普科技开发有限公司 | Communication method of M-BUS (meter-BUS) |
| CN202166856U (en) * | 2011-05-20 | 2012-03-14 | 深圳市骏普科技开发有限公司 | Slave receiving circuit of M-BUS |
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2012
- 2012-11-05 CN CN201210436874.2A patent/CN103809466A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876983U (en) * | 2010-09-27 | 2011-06-22 | 河南新天科技股份有限公司 | M-BUS/wireless intelligent multi-protocol terminal |
| CN102298345A (en) * | 2011-05-20 | 2011-12-28 | 深圳市骏普科技开发有限公司 | Communication method of M-BUS (meter-BUS) |
| CN202166856U (en) * | 2011-05-20 | 2012-03-14 | 深圳市骏普科技开发有限公司 | Slave receiving circuit of M-BUS |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105291874A (en) * | 2015-10-28 | 2016-02-03 | 北京新能源汽车股份有限公司 | Vehicle control unit, signal processing method and signal processing device thereof |
| CN105291874B (en) * | 2015-10-28 | 2018-06-12 | 北京新能源汽车股份有限公司 | Vehicle control unit, signal processing method and signal processing device thereof |
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Application publication date: 20140521 |