CN107179715A - A kind of angle detection device of new energy vehicle - Google Patents
A kind of angle detection device of new energy vehicle Download PDFInfo
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- CN107179715A CN107179715A CN201710370487.6A CN201710370487A CN107179715A CN 107179715 A CN107179715 A CN 107179715A CN 201710370487 A CN201710370487 A CN 201710370487A CN 107179715 A CN107179715 A CN 107179715A
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- detection device
- angle detection
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2603—Steering car
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2637—Vehicle, car, auto, wheelchair
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The present invention provides a kind of angle detection device of new energy vehicle, belongs to new energy vehicle application field.The present invention includes the control board being assembled on electric machine controller, the control board is provided with signal detection module, signal processing module, data conversion module and the software processing module being arranged in electric machine controller, wherein, the signal processing module input is connected with signal detection module, the signal processing module output end is connected with data conversion module input, the software processing module can obtain the data of data conversion module output, and data are handled.Beneficial effects of the present invention are：Increase an acceleration signal or angle signal detection, for moment of torsion, given one calculated judges input quantity, or the input quantity that moment of torsion judges, make the moment of torsion of electric machine controller output more accurate, reasonable sex determination can be made to the torque command that entire car controller is sent.
Description
Technical field
The present invention relates to new energy vehicle application field, more particularly to a kind of angle detection device of new energy vehicle.
Background technology
As shown in figure 1, in new energy vehicle, in current general approach, one kind be completely by entire car controller VCU to
Go out torque output to electric machine controller MCU, torque responsive is then performed by electric system.
Another is exactly, motor controller system itself according to the situation of vehicle, particularly electric system in itself
MAP data（MAP be exactly motor in operating voltage range, max. output torque, peak power, the peak efficiency of electric system
A kind of nominal data）, then limit itself maximum moment of torsion（Either electric current or power）Output, then receives VCU
Torque command.
But, vehicle operation or angled road on, moment of torsion it is given just without reference signal, moment of torsion can be caused
Output have error or mistake, it is impossible to carrying out rational judgement in vehicle operation.
The content of the invention
To solve the problems of the prior art, the present invention provides a kind of angle detection device of new energy vehicle.
The present invention includes the control board being assembled on electric machine controller, and the control board is provided with signal detection
Module, signal processing module, data conversion module and the software processing module being arranged in electric machine controller, wherein, the letter
Number processing module input is connected with signal detection module, the signal processing module output end and data conversion module input
It is connected, the software processing module can obtain the data of data conversion module output, and data are handled.
The present invention is further improved, and the signal detection module is acceleration transducer or angular transducer chip, institute
The acceleration of collection can be decomposed into the component in tri- directions of X, Y, Z by stating acceleration transducer, export three road voltage signals.
The present invention is further improved, and the signal processing module is three line structure identical filter circuits, is respectively used to
Handle three road voltage signals.
The present invention is further improved, and the filter circuit includes operational amplifier, resistance R and electric capacity C, and the computing is put
The in-phase input end of big device is connected with signal detection module output end, the output end of the operational amplifier respectively with anti-phase input
End is connected with resistance R one end, and the resistance R other ends are exported and are connected with ground capacity C.
The present invention is further improved, and the data conversion module is controller control chip.
The present invention is further improved, and the controller control chip includes analog-to-digital conversion device, register, and the modulus turns
The data for changing device conversion are put into register.
The present invention is further improved, and the analog-to-digital conversion device is using over-sampling and sigma-delta processing methods to letter
Number handled, the controller control chip also includes digital filter, the digital filter is arranged on analog-to-digital conversion device
Between register.
The present invention is further improved, and the software processing module is used to judge whether data are effective, is read when confirmation
When data are effective, these data can just be employed.
Compared with prior art, the beneficial effects of the invention are as follows：Increase an acceleration signal or angle signal detection,
For moment of torsion, given one calculated judges input quantity, or the input quantity that moment of torsion judges, the moment of torsion for exporting electric machine controller
It is more accurate, reasonable sex determination can be made to the torque command that entire car controller is sent；Vehicle or control can be understood in real time
The movable information of device, such as acceleration situation, the angle information of vehicle operation, can combine the motor turn that electric machine controller knows
The other information that speed, entire car controller know, such as clutch information, the running status of comprehensive analysis vehicle, and these
Information is mutually used in whole vehicle body CAN network；Entire car controller VCU or electric machine controller MCU, can be according to these ginsengs
Number, to vehicle when operation, carries out reasonable sex determination in advance.
Brief description of the drawings
Fig. 1 is position views of the VCU and MCU in new energy vehicle；
Fig. 2 is structured flowchart of the present invention；
Fig. 3 is schematic structural view of the invention；
Fig. 4 is filter circuit schematic diagram of the present invention.
Embodiment
The present invention is described in further details with reference to the accompanying drawings and examples.
As shown in Figures 2 and 3, the present invention includes hardware circuit part and software section, wherein, hardware circuit part is dress
With the control board being integrated on electric machine controller MCU, the control board is provided with signal detection module, signal transacting
Module, data conversion module；Software section is the software processing module being arranged in electric machine controller, wherein, at the signal
Reason module input is connected with signal detection module, the signal processing module output end and data conversion module input phase
Even, the software processing module can obtain the data of data conversion module output, and data are handled.
The present invention detects that given one calculated sentences for moment of torsion by increasing an acceleration signal or angle signal
Disconnected input quantity, or the input quantity that moment of torsion judges, the moment of torsion for exporting electric machine controller are more accurate, can be to vehicle control
The torque command that device processed is sent makes reasonable sex determination.For make up in the market to output torque without reference to signal not
Foot.
The signal detection module of this example is that acceleration transducer or angular transducer chip etc. can calculate operation angle side
The chip of the information in face, as one embodiment of the present of invention, this example uses the special acceleration transducer of the companies such as ST or ADI
Chip as signal supervisory instrument, for testing vehicle movement and angle in terms of information, specifically, the acceleration sensing of this example
Device chip is placed on above control board, and whole control board is then put into electric machine controller（MCU）In system, it is used for
Test vehicle in starting, at the uniform velocity, deceleration, the vehicle acceleration information under the various different road conditions such as ramp, also, it can detect
The information of tri- direction of principal axis of XYZ, equivalent to the component that the acceleration signal of detection is decomposed into tri- directions of XYZ, then passes through
The processor MUX of acceleration sensor chip is processed into three road voltage signal outputs, then parses car by acceleration information again
Angle signal.
The signal processing module of this example can respectively be filtered to the three road voltage signals that acceleration sensor chip is exported
Ripple processing, filters out the noise in signal.The signal processing module of this example is three line structure identical filter circuits.
The filter circuit of this example includes operational amplifier, resistance R and electric capacity C, the in-phase input end of the operational amplifier
Be connected with signal detection module output end, the output end of the operational amplifier respectively with inverting input and resistance R one end phase
Even, the resistance R other ends are exported and are connected with ground capacity C.
Certainly, filter circuit is by many kinds, and this example can also can realize the circuit of filter function for other.
The data conversion module of this example employs a kind of special controller control chip of comparison, such as, and TI or English fly
The managing performance chips such as icepro.The acceleration signal in tri- directions of XYZ, is handled by acceleration sensor chip and filter circuit
Afterwards, it is possible to which electric signal is converted into the voltage signal that controller control chip can be recognized, then signal is admitted to control
The analog-to-digital conversion device ADC of device control chip, carries out AD conversions, draws 0 ~ 4095 digital quantity at least 3 tunnels, corresponding XYZ tri-
The data in individual direction, then ADC can place the data into corresponding specialised register, wait software read and parsing data knot
Really.
The analog-to-digital conversion device of this example is handled signal using over-sampling and sigma-delta processing methods, the control
Device control chip processed also includes digital filter, and the digital filter is arranged between analog-to-digital conversion device and register.Reason
It is as follows：
Common ADC quantizing noise is white noise, and noise power is evenly distributed on frequency domain, and total amount is certain, is adopted using crossing
Sample technical finesse, can reduce the power density of noise, in addition, whole to noise using sigma-delta treatment technologies again
Shape, moves noise to high frequency, and high-frequency noise is then filtered with digital filter, the quantizing noise of very little is obtained, so as to improve essence
Degree.The characteristics of ∑ Δ ADC is that precision is high, and highest has reached 24bit, and the ratio of analog circuit is small, and analog circuit is wanted
Reduction is asked, the matching error such as electric capacity susceptibility is reduced.In addition, its is simple in construction, using simple 1bit DAC（Numeral
Analog converter）It can avoid many bit DAC's non-linear.
The software processing module of this example is used to judge whether data are effective, that is, carries out substantially soft to the data of reading
Part is filtered, and when the data for confirming to read are rational or effective, these data can just be employed.
Effective acceleration or angle signal data of this example after reading software processing module filtering, can pass through
Software application processing carries out many purposes.It is illustrated below：
1st, the running status of vehicle control device is understood in real time
By special-purpose software, the acceleration and angle information drawn is parsed, the motion letter of vehicle or controller can be understood in real time
The angle information of breath, such as acceleration situation, vehicle operation, other letters that motor speed, the VCU that can be known with reference to MCU know
Breath, such as clutch information, the running status of comprehensive analysis vehicle, and these information are mutual in whole vehicle body CAN network
Use.
2nd, it is given to moment of torsion to carry out reasonable sex determination
By the 1st article of various information drawn, entire car controller VCU or electric machine controller MCU, it is possible to according to these parameters,
To vehicle when operation, vehicle is carried out in advance and is given（Output）Moment of torsion, to carry out reasonable sex determination.
3rd, controller output torque is done and judged
After electric machine controller MCU performs VCU torque command, the electric system of moment of torsion executing agency is used as（Motor and control
Device system）, it is necessary to make reasonable sex determination to the torque command that VCU is sent, this be accomplished by the invention detects that acceleration letter
Number and angle signal, be used as maximum discreet value judge.
Simultaneously as MCU is the running status for knowing vehicle the very first time, it can shift to an earlier date the next controlling cycle of anticipation
（About 100uS）Torque demand, this when, just have to use acceleration and angle information.
Embodiment described above is the better embodiment of the present invention, not limits the specific of the present invention with this
Practical range, the scope of the present invention includes being not limited to present embodiment, all equal according to the equivalence changes of the invention made
Within the scope of the present invention.
Claims (10)
1. a kind of angle detection device of new energy vehicle, it is characterised in that：Including the control electricity being assembled on electric machine controller
Road plate, the control board is provided with signal detection module, signal processing module, data conversion module and is arranged on motor control
Software processing module in device processed, wherein, the signal processing module input is connected with signal detection module, at the signal
Reason module output end is connected with data conversion module input, and the software processing module can obtain data conversion module output
Data, and data are handled.
2. angle detection device according to claim 1, it is characterised in that：The signal detection module is acceleration sensing
The acceleration of collection can be decomposed into point in tri- directions of X, Y, Z by device or angular transducer chip, the acceleration transducer
Amount, exports three road voltage signals.
3. angle detection device according to claim 2, it is characterised in that：The signal processing module is three line structure phases
Same filter circuit, is respectively used to handle three road voltage signals.
4. angle detection device according to claim 3, it is characterised in that：The filter circuit include operational amplifier,
Resistance R and electric capacity C, the in-phase input end of the operational amplifier is connected with signal detection module output end, the operation amplifier
The output end of device is connected with inverting input and resistance R one end respectively, resistance R other ends output and with ground capacity C phases
Even.
5. angle detection device according to claim 4, it is characterised in that：The data conversion module controls for controller
Chip.
6. angle detection device according to claim 5, it is characterised in that：The controller control chip turns including modulus
Change device, register, the data of the analog-to-digital conversion device conversion are put into register.
7. angle detection device according to claim 6, it is characterised in that：The analog-to-digital conversion device using over-sampling and
Sigma-delta processing methods are handled signal, and the controller control chip also includes digital filter, the numeral
Wave filter is arranged between analog-to-digital conversion device and register.
8. the angle detection device according to claim any one of 1-7, it is characterised in that：The software processing module is used for
Judge whether data are effective, when the data for confirming to read are effective, these data can just be employed.
9. angle detection device according to claim 8, it is characterised in that：It is understanding vehicle control device operation shape in real time
The application of state, MCU can be according to the running status of vehicle, the torque demand of the next controlling cycle of anticipation in advance.
10. angle detection device according to claim 9, it is characterised in that：Entire car controller can be according to the angle
The acceleration and/or vehicle operation angle information of detection means detection, when vehicle is run, give moment of torsion to vehicle in advance and carry out
Reasonable sex determination, the acceleration and/or vehicle operation angle that electric machine controller can be detected according to the angle detection device is believed
Cease the torque command sent to entire car controller and carry out reasonable sex determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370487.6A CN107179715A (en) | 2017-05-23 | 2017-05-23 | A kind of angle detection device of new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710370487.6A CN107179715A (en) | 2017-05-23 | 2017-05-23 | A kind of angle detection device of new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107179715A true CN107179715A (en) | 2017-09-19 |
Family
ID=59832712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710370487.6A Pending CN107179715A (en) | 2017-05-23 | 2017-05-23 | A kind of angle detection device of new energy vehicle |
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Citations (8)
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| CN201297942Y (en) * | 2008-10-14 | 2009-08-26 | 杭州中导电子技术有限公司 | GPS terminal device with CAN bus |
| CN101813453A (en) * | 2010-04-14 | 2010-08-25 | 中国人民解放军军事交通学院 | Dynamic inclination detecting device for automotive dynamic driving simulator and method thereof |
| US20100250056A1 (en) * | 2009-03-24 | 2010-09-30 | Ford Global Technologies, Llc | System and Method for Improving Vehicle Performance on Grade |
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| CN106218415A (en) * | 2016-07-22 | 2016-12-14 | 深圳市大地和电气股份有限公司 | A kind of monitoring system and method for Motor torque |
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2017
- 2017-05-23 CN CN201710370487.6A patent/CN107179715A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297942Y (en) * | 2008-10-14 | 2009-08-26 | 杭州中导电子技术有限公司 | GPS terminal device with CAN bus |
| US20100250056A1 (en) * | 2009-03-24 | 2010-09-30 | Ford Global Technologies, Llc | System and Method for Improving Vehicle Performance on Grade |
| CN101813453A (en) * | 2010-04-14 | 2010-08-25 | 中国人民解放军军事交通学院 | Dynamic inclination detecting device for automotive dynamic driving simulator and method thereof |
| KR20140021403A (en) * | 2012-08-10 | 2014-02-20 | 현대모비스 주식회사 | Conering control method for vehicle and conering control system foe vehicle |
| CN104228938A (en) * | 2014-08-26 | 2014-12-24 | 苏州市职业大学 | Universal electronic control unit of electric power steering control system for industrial vehicle |
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Application publication date: 20170919 |