CN203929061U - A kind of Slope Transducer - Google Patents
A kind of Slope Transducer Download PDFInfo
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- CN203929061U CN203929061U CN201420270512.5U CN201420270512U CN203929061U CN 203929061 U CN203929061 U CN 203929061U CN 201420270512 U CN201420270512 U CN 201420270512U CN 203929061 U CN203929061 U CN 203929061U
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- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000013016 damping Methods 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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Abstract
The utility model has been announced a kind of Slope Transducer, comprise system base chip, acceleration detecting unit, control module and external circuit, it is characterized in that, described external circuit is comprised of power module and CAN bus, described system base chip is provided with holding circuit, communication receiving/transmission module and the voltage regulating module being connected with power module, communication receiving/transmission module respectively with CAN bus, control module is suitable, described acceleration detecting unit is comprised of accelerometer and inside chip, inside chip is by Serial Peripheral Interface (SPI), logic controller, computing module, wave filter and digital signal processing module form, Serial Peripheral Interface (SPI) is connected with accelerometer, digital signal processing module is connected with control module, described digital signal processing module is provided with temperature sensor.It is fast that Slope Transducer of the present utility model has signal output speed, and the value of slope recording is accurate, and production efficiency and work efficiency are high, overload-resistant function, the feature of long service life.
Description
Technical field
The utility model relates to the technical field of sensor, relates in particular a kind of Slope Transducer for automobile electronic parking braking system.
Background technology
Slope Transducer is the ramp angles for detection of automobile position.Ramp sensor sends ramp angles value to the controller in automobile electronic parking braking system by CAN bus, and controller forms after corresponding parking instruction, drives topworks to make automobile produce the damping force corresponding with ramp angles, realizes automobile parking.But the Slope Transducer on market, because the detecting element of ramp angles does not have integrated digital signal processing module, outputting analog signal, needs control chip to carry out AD sampling, has the inefficient problem of analog signal output.Because structure is unreasonable, the CAN transceiver that Slope Transducer is connected with CAN bus is separate modular, has the weak problem of antioverloading ability, has also increased the operation of installing, and has the problem that production efficiency is low.Lack the impact of considering temperature simultaneously, have the inaccurate problem of ramp angles that detects.Yet Slope Transducer structure in the prior art does not effectively address the above problem yet.Chinese patent Granted publication CN 201764962 U for example, at on 03 16th, 2011 Granted publication day, the name of innovation and creation is called a kind of digital ramp sensor, this Patent Case discloses the structure of a kind of ramp sensor, by detection signal load module, signal condition module, compare filtration module, single chip processing module, CAN bus communication module, the combined innovation of LED indicating module and power module, realized this numeral ramp sensor and had the advantages that antijamming capability is strong, but lacking, this Patent Case considers the impact of environment temperature environment on digital ramp sensor, or the susceptibility of digital ramp sensor self to temperature, there is the inaccurate problem of ramp angles that detects.Chinese patent Granted publication CN 202915914 U and for example, at on 05 01st, 2013 Granted publication day, the name of innovation and creation is called a kind of road grade harvester, this patent discloses a kind of pick-up unit of ramp angles, pass through obliquity sensor, A/D converter, microprocessor, the combined innovation of CAN controller and CAN transceiver, realize this road grade harvester and there is the low and strong feature of antijamming capability of cost, but the CAN transceiver of this Patent Case is independent module, lack holding circuit, there is antioverloading ability short problem in low and serviceable life.The utility model is by the combined innovation of system base chip, acceleration detecting unit, control module and external circuit, provide a kind of signal output speed fast, the value of slope recording is accurate, and production efficiency and work efficiency are high, overload-resistant function, the Slope Transducer of long service life.
Summary of the invention
The utility model solves general sensor welded structure in prior art does not have effectively to solve the problem that slope measuring is inaccurate, signal output efficiency is low and production efficiency is low, a kind of Slope Transducer is provided, by the combined innovation of system base chip, acceleration detecting unit, control module and external circuit, realizing this Slope Transducer, to have signal output speed fast, the value of slope recording is accurate, production efficiency and work efficiency are high, overload-resistant function, the feature of long service life.
In order to solve the technical matters of above-mentioned existence, the utility model is taked following technical proposals: a kind of Slope Transducer, comprise system base chip, acceleration detecting unit, control module and external circuit, it is characterized in that, described external circuit is comprised of power module and CAN bus, described system base chip is provided with holding circuit, communication receiving/transmission module and the voltage regulating module being connected with power module, communication receiving/transmission module respectively with CAN bus, control module is suitable, described acceleration detecting unit is comprised of accelerometer and inside chip, inside chip is by Serial Peripheral Interface (SPI), logic controller, computing module, wave filter and digital signal processing module form, Serial Peripheral Interface (SPI) is connected with accelerometer, digital signal processing module is connected with control module, described digital signal processing module is provided with temperature sensor.
Power pack: the automobile storage battery of selecting 12V or 24V is power module, through holding circuit, the cut-off of supply voltage or conducting state are carried out after feedback processing, the voltage regulating module of system base chip carries out voltage-regulation, gives the inside chip power supply of communication receiving/transmission module, control module and acceleration detecting unit; Signal testing and processing section: first, accelerometer records the value of slope signal in ramp, automobile place, through Serial Peripheral Interface (SPI), enter inside chip, pass through successively the processing of logic controller, computing module and wave filter, value of slope signal enters in digital signal processing module; Secondly, temperature sensor records the temperature value signal of surrounding environment, and temperature value signal is transferred in digital signal processing module; Then, in digital signal processing module, the correction by temperature value signal to value of slope signal; Afterwards, revised value of slope signal transfers to CAN bus through the communication receiving/transmission module of control module, system base chip; Finally, CAN bus sends revised value of slope signal to the controller in automobile electronic parking braking system, controller forms after corresponding parking instruction, drives topworks to make automobile produce the damping force corresponding with revised value of slope signal, realizes automobile parking.
System base chip, integrated holding circuit, communication receiving/transmission module and voltage regulating module, compare with the structure that voltage regulating module is separate modular with the communication receiving/transmission module in general Slope Transducer, reduced installation procedure, enhance productivity, the holding circuit of simultaneity factor base chip, to ending processing higher than the rated voltage of this Slope Transducer, prevents that Slope Transducer from burning out, make this Slope Transducer there is anti-overload ability, longer service life; Acceleration detecting unit, has increased temperature sensor, and the processing to value of slope and ambient temperature value by digital signal processing module, has realized the correction of ambient temperature to value of slope, makes the value of slope that records more accurate; Digital signal processing module, for the treatment of value of slope signal and environment temperature value signal, and their signal is transferred in control module, compare with general Slope Transducer, realize the output of simulating signal and carry out AD sampling without control chip, signal output speed is faster; Control module, has the function of system call, CAN Communication Control and system calibrating, fault handling, improves stability and the work efficiency of this Slope Transducer.
As preferably, the model that described system base chip is selected is MC33903.
As preferably, the model that described acceleration detecting unit is selected is MMA6900, and accelerometer is twin-axis accelerometer.
As preferably, described computing module is comprised of computing module X and computing module Y, and described wave filter is by the wave filter X corresponding with computing module X, form with the corresponding wave filter Y of computing module Y.
As preferably, described inside chip is also provided with the connected pressure regulator of andlogic control device.
As preferably, the model that described control module is selected is MC9S08.
As preferably, described digital signal processing module is connected by pulse code modulation (PCM) with control module.
As preferably, the power supply of described power module is 12V or 24V.
Owing to taking above-mentioned technical scheme, a kind of Slope Transducer that the utility model provides has such beneficial effect: by the combined innovation of system base chip, acceleration detecting unit, control module and external circuit, provide a kind of signal output speed fast, the value of slope recording is accurate, production efficiency and work efficiency are high, overload-resistant function, the Slope Transducer of long service life.
accompanying drawing explanation:
Accompanying drawing 1 is a kind of circuit theory diagrams of the inside chip of the utility model acceleration detecting unit;
Accompanying drawing 2 is a kind of hardware block diagram of the present utility model;
A kind of hardware block diagram that accompanying drawing 3 is prior art.
embodiment:
Consult accompanying drawing, to of the present utility model, be described in further detail:
Embodiment mono-: by reference to the accompanying drawings 1 and 2, a kind of Slope Transducer, comprise system base chip, acceleration detecting unit, control module and external circuit, external circuit is comprised of power module and CAN bus, system base chip is provided with holding circuit, communication receiving/transmission module and the voltage regulating module being connected with power module, communication receiving/transmission module respectively with CAN bus, control module is suitable, acceleration detecting unit is comprised of accelerometer and inside chip, inside chip is by Serial Peripheral Interface (SPI), logic controller, computing module, wave filter and digital signal processing module form, Serial Peripheral Interface (SPI) is connected with accelerometer, digital signal processing module is connected with control module, digital signal processing module is provided with temperature sensor.
Power pack: the automobile storage battery of selecting 12V is power module, through holding circuit, the cut-off of supply voltage or conducting state are carried out after feedback processing, the voltage regulating module of system base chip carries out voltage-regulation, gives the inside chip power supply of communication receiving/transmission module, control module and acceleration detecting unit; Signal testing and processing section: first, accelerometer records the value of slope signal in ramp, automobile place, through Serial Peripheral Interface (SPI), enter inside chip, pass through successively the processing of logic controller, computing module and wave filter, value of slope signal enters in digital signal processing module; Secondly, temperature sensor records the temperature value signal of surrounding environment, and temperature value signal is transferred in digital signal processing module; Then, in digital signal processing module, the correction by temperature value signal to value of slope signal; Afterwards, revised value of slope signal transfers to CAN bus through the communication receiving/transmission module of control module, system base chip; Finally, CAN bus sends revised value of slope signal to the controller in automobile electronic parking braking system, controller forms after corresponding parking instruction, drives topworks to make automobile produce the damping force corresponding with revised value of slope signal, realizes automobile parking.
Embodiment bis-: by reference to the accompanying drawings 1 and 2, a kind of Slope Transducer, comprise system base chip, acceleration detecting unit, control module and external circuit, external circuit is comprised of power module and CAN bus, the model that system base chip is selected is MC33903, the model that acceleration detecting unit is selected is MMA6900, the model that control module is selected is MC9S08, system base chip is provided with holding circuit, communication receiving/transmission module and the voltage regulating module being connected with power module, communication receiving/transmission module respectively with CAN bus, control module is suitable, acceleration detecting unit is comprised of twin-axis accelerometer and inside chip, inside chip is by pressure regulator, Serial Peripheral Interface (SPI), logic controller, computing module, wave filter and digital signal processing module form, computing module is comprised of computing module X and computing module Y, wave filter is by the wave filter X corresponding with computing module X, the wave filter Y corresponding with computing module Y forms, Serial Peripheral Interface (SPI) is connected with twin-axis accelerometer, digital signal processing module is connected by pulse code modulation (PCM) with control module, digital signal processing module is provided with temperature sensor.
Power pack: the automobile storage battery of selecting 24V is power module, through holding circuit, the cut-off of supply voltage or conducting state are carried out after feedback processing, the voltage regulating module of system base chip carries out voltage-regulation, give respectively communication receiving/transmission module, control module and acceleration detecting unit power supply, acceleration detecting unit is powered to inside chip after pressure regulator carries out pressure regulation again; Signal testing and processing section: first, twin-axis accelerometer records respectively automobile and parks the gradient signal of position and the side tilt angle signal of automobile, through Serial Peripheral Interface (SPI), enter inside chip, gradient signal passes through the processing of logic controller, computing module X, converter and wave filter X successively, enter in digital signal processing module, side tilt angle signal passes through the processing of logic controller, computing module Y, converter and wave filter Y successively, enters in digital signal processing module; Secondly, temperature sensor records the temperature value signal of surrounding environment, and temperature value signal is transferred in digital signal processing module; Then,, in digital signal processing module, by temperature value signal, respectively gradient signal, side tilt angle signal are revised; Afterwards, the communication receiving/transmission module that revised gradient signal, side tilt angle signal are sent to control module, system base chip successively through pulse code modulation (PCM) PCM-X and pulse code modulation (PCM) PCM-Y respectively transfers to CAN bus; Finally, CAN bus sends revised two signals to the controller in automobile electronic parking braking system, controller forms after corresponding parking instruction, drives topworks that automobile is produced and revised two damping force that signal is corresponding, realizes automobile parking.
Above-described two specific embodiments, are described in detail the utility model.Applied specific embodiment herein principle of the present utility model and embodiment are set forth, the explanation of embodiment is just for helping to understand core concept of the present utility model.Should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model core concept; can also carry out some modifications to the utility model; the circuit feature of the calculation procedure adopting such as computing module, the physical circuit of control module, holding circuit etc. carries out some modifications or claim is carried out the combination of some feasibilities, within should dropping on the protection domain of the utility model claim.
Claims (8)
1. a Slope Transducer, comprise system base chip, acceleration detecting unit, control module and external circuit, it is characterized in that, described external circuit is comprised of power module and CAN bus, described system base chip is provided with holding circuit, communication receiving/transmission module and the voltage regulating module being connected with power module, communication receiving/transmission module respectively with CAN bus, control module is suitable, described acceleration detecting unit is comprised of accelerometer and inside chip, inside chip is by Serial Peripheral Interface (SPI), logic controller, computing module, wave filter and digital signal processing module form, Serial Peripheral Interface (SPI) is connected with accelerometer, digital signal processing module is connected with control module, described digital signal processing module is provided with temperature sensor.
2. a kind of Slope Transducer according to claim 1, is characterized in that, the model that described system base chip is selected is MC33903.
3. a kind of Slope Transducer according to claim 1, is characterized in that, the model that described acceleration detecting unit is selected is MMA6900, and accelerometer is twin-axis accelerometer.
4. a kind of Slope Transducer according to claim 1, is characterized in that, described computing module is comprised of computing module X and computing module Y, and described wave filter is by the wave filter X corresponding with computing module X, form with the corresponding wave filter Y of computing module Y.
5. a kind of Slope Transducer according to claim 1, is characterized in that, described inside chip is also provided with the connected pressure regulator of andlogic control device.
6. a kind of Slope Transducer according to claim 1, is characterized in that, the model that described control module is selected is MC9S08.
7. a kind of Slope Transducer according to claim 1, is characterized in that, described digital signal processing module is connected by pulse code modulation (PCM) with control module.
8. a kind of Slope Transducer according to claim 1, is characterized in that, the power supply of described power module is 12V or 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270512.5U CN203929061U (en) | 2014-05-26 | 2014-05-26 | A kind of Slope Transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270512.5U CN203929061U (en) | 2014-05-26 | 2014-05-26 | A kind of Slope Transducer |
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| Publication Number | Publication Date |
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| CN203929061U true CN203929061U (en) | 2014-11-05 |
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| CN201420270512.5U Expired - Lifetime CN203929061U (en) | 2014-05-26 | 2014-05-26 | A kind of Slope Transducer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111062A (en) * | 2014-05-26 | 2014-10-22 | 宁波拓普电器有限公司 | Gradient sensor |
| CN108022793A (en) * | 2016-10-28 | 2018-05-11 | 三星Sdi株式会社 | Drive circuit for the operation of relay |
-
2014
- 2014-05-26 CN CN201420270512.5U patent/CN203929061U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111062A (en) * | 2014-05-26 | 2014-10-22 | 宁波拓普电器有限公司 | Gradient sensor |
| CN108022793A (en) * | 2016-10-28 | 2018-05-11 | 三星Sdi株式会社 | Drive circuit for the operation of relay |
| CN108022793B (en) * | 2016-10-28 | 2022-04-19 | 三星Sdi株式会社 | Driver circuit for operation of a relay |
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