CN202102010U - Transverse acceleration and yaw velocity signal collecting device - Google Patents
Transverse acceleration and yaw velocity signal collecting device Download PDFInfo
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- CN202102010U CN202102010U CN2011201984917U CN201120198491U CN202102010U CN 202102010 U CN202102010 U CN 202102010U CN 2011201984917 U CN2011201984917 U CN 2011201984917U CN 201120198491 U CN201120198491 U CN 201120198491U CN 202102010 U CN202102010 U CN 202102010U
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- transverse acceleration
- processor
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- converter
- yaw
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Abstract
The utility model discloses a transverse acceleration and yaw velocity signal collecting device, comprising a transverse acceleration sensor, a yaw velocity sensor, an A/D converter, a CAN controller, a CAN transceiver, a processor and a storage unit, wherein the processor is connected to the transverse acceleration sensor and the yaw velocity sensor through the A/D converter, the processor is connected to the CAN transceiver through the CAN controller, and the processor is connected to the storage unit. The signal collecting device has high collecting precision and excellent real-time property, strong anti-interference capability and accuracy in data; at the same time, the signal collecting device is strong in functions, flexible in configuration, small in volume and simple in interface.
Description
Technical field
The utility model belongs to the electronic communication technology field, relates to a kind of signal pickup assembly, relates in particular to a kind of transverse acceleration and yaw rate signal acquisition device.
Background technology
Transverse acceleration and yaw velocity are two key physical amounts describing the automobile side angle motion state, are the important indicators of operational stability when estimating the automobile side angle motion, active safety and riding comfort.Transverse acceleration is to describe the lateral forces situation that automobile receives, and yaw velocity is to describe the situation that automobile rotatablely moves around its gravity axis.
Many control system all need the above-mentioned two kinds of signals of exact acquisition on the automobile; Such as; ESP (ESP) control system need be judged the turning track that vehicle is actual through transverse acceleration and yaw velocity signal; Through certain control algolithm, the stability when guaranteeing Vehicular turn prevents understeer or ovdersteering.Suspension control system need obtain transverse acceleration signal, and the roll stability when guaranteeing Vehicular turn improves comfortableness.In addition, auto-cruising control unit, GPS etc. also need the yaw velocity signal.
The utility model content
The utility model technical matters to be solved is: a kind of transverse acceleration and yaw rate signal acquisition device are provided; Can gather transverse acceleration signal and yaw velocity signal accurately, in real time, can be widely used in above-mentioned vehicle control system or be used to study vehicle side to the characteristics of motion.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of transverse acceleration and yaw rate signal acquisition device, said signal pickup assembly comprises:
Lateral acceleration sensor, yaw-rate sensor, A/D converter, CAN controller, CAN transceiver, processor and storage unit;
Said processor connects lateral acceleration sensor, yaw-rate sensor through A/D converter, and said processor connects the CAN transceiver through the CAN controller, and said processor connects storage unit.
As a kind of preferred version of the utility model, said processor is a single-chip microcomputer.
As a kind of preferred version of the utility model, said A/D converter, CAN controller, storage unit are integrated in single-chip microcomputer inside, and single-chip microcomputer disposes the SCI serial communication interface.
As a kind of preferred version of the utility model, said storage unit is FLASH storer or eeprom memory.
As a kind of preferred version of the utility model, the interface of said signal pickup assembly comprise power interface, 2 in interface, 2 of serial ports and CAN mouth.
The beneficial effect of the utility model is: transverse acceleration and yaw rate signal acquisition device that the utility model proposes, and acquisition precision is high, and real-time is good.The ADI company sensor chip that adopts is highly sensitive, and good stability has self-checking function, measures accurately; Adopt 8 A/D conversions, can guarantee 0.5% acquisition precision.A/D converter is type relatively one by one, changes a shortest time can reach 16uS; Adopt CAN bus transceive data, high bit rate has guaranteed real time of data transmission to 1MHz.
This device antijamming capability is strong, and data are accurate.Device adopts hermetically-sealed construction, and is independent compact, effectively reduced the external interference influence; Simultaneously, inner single-chip microcomputer has the software filtering function, has further improved antijamming capability; Adopt CAN bus transceive data, the CAN bus has very high anti-electromagnetic interference capability as a kind of fieldbus that is widely used in automotive environment, and simultaneously, the CAN bus has reliable fault processing and error-detection mechanism, has guaranteed the accuracy of transmission data.
This apparatus function is strong, flexible configuration.Adopt single-chip microcomputer, can require to take the Different software algorithm, image data is carried out redispatching to control module after the pre-service, alleviated the computational load of control module according to the control of different external controls unit; Device can deposit the data of needs in storage unit, supplies data analysis to use; Adopt serial communication mode (SCI or CAN) to accept external control configuration of cells and startup; Make device have operability flexibly; The external control unit can be to A/D sample mode, sampling time; The contents such as baud rate of CAN transmitting-receiving are configured, and can be configured selection to the scm software algorithm according to the control requirement.
This device volume is little, and interface is simple.The sensor chip integrated level that device is selected for use is high, microminiature, ultralight thinning, and the singlechip chip of selecting for use is inner integrated A/D modular converter and CAN control module reduce the volume of device greatly, are convenient to install; Device interface comprise power supply,, 2 in 2 of serial ports and CAN mouth totally 6 terminal interface, be easy to realize being connected with the external control unit.
Description of drawings
Fig. 1 is the hardware elementary diagram of the utility model signal pickup assembly.
Fig. 2 is the software program flow chart of the utility model signal pickup assembly.
Fig. 3 is the utility model signal pickup assembly and relevant control module Principle of Communication figure.
Embodiment
Specify the preferred embodiment of the utility model below in conjunction with accompanying drawing.
Embodiment one
See also Fig. 1, the utility model has disclosed a kind of transverse acceleration and yaw rate signal acquisition device, and Fig. 1 is a hardware elementary diagram.Said signal pickup assembly can be made up of lateral acceleration sensor 1, yaw-rate sensor 2, single-chip microcomputer 3, A/D converter 4, CAN controller 5, CAN transceiver 6 and storage unit 7; Wherein A/D converter 4, CAN controller 5 are integrated in single-chip microcomputer 3 inside, and single-chip microcomputer disposes SCI serial communication interface 8.In the present embodiment, device adopts the lateral acceleration sensor integrated chip and the angular-rate sensor integrated chip of ADI company.Adopt 8 single-chip microcomputers of Freescale company, this single-chip microcomputer is integrated storer and the CAN controller module of A/D converter module, asynchronous serial communication interface, FLASH or EEPROM.Adopt the CAN transponder chip of Philips company.
This device principle of work is following: lateral acceleration sensor and yaw-rate sensor are placed in certain position; Sense vehicle transverse acceleration and yaw velocity; Obtain the analog voltage signal of 0～5V; Convert digital signal to through A/D converter that single-chip microcomputer is with; Constantly be sent to single-chip microcomputer, single-chip microcomputer calculates the digital signal of gathering through certain processing after, deposit data in storage unit as requested or send to and be correlated with control module or both furthermore through serial communication mode (SCI or CAN).Relevant control module can pass through serial communication mode (SCI or CAN) configuration and start single-chip microcomputer.
See also Fig. 2; Fig. 2 is the main program flow chart of signal pickup assembly; Device receives through serial communication mode (SCI or CAN) and starts the word startup; Receive configuration words the control register of correlation module is configured, deploy content mainly comprises sampling time, the conversion regime of A/D converter module 4, the baud rate of CAN controller module 5 and the software algorithm that will take etc.Lateral acceleration sensor 1 and yaw-rate sensor 2 are proportional with it voltage signal output with the transverse acceleration signal and the yaw velocity conversion of signals of vehicle; This voltage signal becomes digital signal through the A/D converter module 4 that single-chip microcomputer 3 carries; After single-chip microcomputer 3 (CPU) carries out signal software filtering and handles calculating; Deposit storage unit 7 in; Supply data analysis, and send on the bus, supply relevant control module to use through CAN module (comprising CAN controller 5, CAN transceiver 6).
See also Fig. 3, this is this device and correlation module Principle of Communication figure.Device sends to relevant control module through serial communication mode (SCI or CAN) with data.Relevant control module can pass through serial communication mode (SCI or CAN) configuration and starter gear.
In sum, transverse acceleration and yaw rate signal acquisition device that the utility model proposes, acquisition precision is high, and real-time is good.The ADI company sensor chip that adopts is highly sensitive, and good stability has self-checking function, measures accurately; Adopt 8 A/D conversions, can guarantee 0.5% acquisition precision.A/D converter is type relatively one by one, changes a shortest time can reach 16uS; Adopt CAN bus transceive data, high bit rate has guaranteed real time of data transmission to 1MHz.
This device antijamming capability is strong, and data are accurate.Device adopts hermetically-sealed construction, and is independent compact, effectively reduced the external interference influence; Simultaneously, inner single-chip microcomputer has the software filtering function, has further improved antijamming capability; Adopt CAN bus transceive data, the CAN bus has very high anti-electromagnetic interference capability as a kind of fieldbus that is widely used in automotive environment, and simultaneously, the CAN bus has reliable fault processing and error-detection mechanism, has guaranteed the accuracy of transmission data.
This apparatus function is strong, flexible configuration.Adopt single-chip microcomputer, can require to take the Different software algorithm, image data is carried out redispatching to control module after the pre-service, alleviated the computational load of control module according to the control of different external controls unit; Device can deposit the data of needs in storage unit, supplies data analysis to use; Adopt serial communication mode (SCI or CAN) to accept external control configuration of cells and startup; Make device have operability flexibly; The external control unit can be to A/D sample mode, sampling time; The contents such as baud rate of CAN transmitting-receiving are configured, and can be configured selection to the scm software algorithm according to the control requirement.
This device volume is little, and interface is simple.The sensor chip integrated level that device is selected for use is high, microminiature, ultralight thinning, and the singlechip chip of selecting for use is inner integrated A/D modular converter and CAN control module reduce the volume of device greatly, are convenient to install; Device interface comprise power supply,, 2 in 2 of serial ports and CAN mouth totally 6 terminal interface, be easy to realize being connected with the external control unit.
Here description of the utility model and application is illustrative, is not to want the scope of the utility model is limited in the above-described embodiments.Here the distortion of the embodiment that is disclosed and change are possible, and the replacement of embodiment is known with the various parts of equivalence for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation of spirit that does not break away from the utility model or essential characteristic, and the utility model can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the utility model scope and spirit, can carry out other distortion and change here to the embodiment that is disclosed.
Claims (5)
1. transverse acceleration and yaw rate signal acquisition device is characterized in that said signal pickup assembly comprises:
Lateral acceleration sensor, yaw-rate sensor, A/D converter, CAN controller, CAN transceiver, processor and storage unit;
Said processor connects lateral acceleration sensor, yaw-rate sensor through A/D converter, and said processor connects the CAN transceiver through the CAN controller, and said processor connects storage unit.
2. transverse acceleration according to claim 1 and yaw rate signal acquisition device is characterized in that:
Said processor is a single-chip microcomputer.
3. transverse acceleration according to claim 2 and yaw rate signal acquisition device is characterized in that:
Said A/D converter, CAN controller, storage unit are integrated in single-chip microcomputer inside, and single-chip microcomputer disposes SCI serial communication interface and CAN communication module.
4. according to described transverse acceleration of one of claim 1 to 3 and yaw rate signal acquisition device, it is characterized in that:
Said storage unit is FLASH storer or eeprom memory.
5. transverse acceleration according to claim 1 and yaw rate signal acquisition device is characterized in that:
The interface of said signal pickup assembly comprise power interface, interface, 2 serial ports and 2 CAN mouths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201984917U CN202102010U (en) | 2011-06-14 | 2011-06-14 | Transverse acceleration and yaw velocity signal collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201984917U CN202102010U (en) | 2011-06-14 | 2011-06-14 | Transverse acceleration and yaw velocity signal collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102010U true CN202102010U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201984917U Expired - Fee Related CN202102010U (en) | 2011-06-14 | 2011-06-14 | Transverse acceleration and yaw velocity signal collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202102010U (en) |
-
2011
- 2011-06-14 CN CN2011201984917U patent/CN202102010U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20120614 |