CN203011398U - Non-contact electronic throttle sensor - Google Patents
Non-contact electronic throttle sensor Download PDFInfo
- Publication number
- CN203011398U CN203011398U CN 201320032582 CN201320032582U CN203011398U CN 203011398 U CN203011398 U CN 203011398U CN 201320032582 CN201320032582 CN 201320032582 CN 201320032582 U CN201320032582 U CN 201320032582U CN 203011398 U CN203011398 U CN 203011398U
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- Prior art keywords
- adapter
- chip
- sensor chip
- throttle
- valve block
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Abstract
A non-contact electronic throttle sensor comprises a shell. A circuit board and an adapter are installed inside the shell. A sensor chip and a filter circuit are installed on the circuit board. The adapter is used for connecting with a rotating shaft of a throttle and is internally equipped with a magnet. The adapter is straightly opposite to the sensor chip, and the sensor chip is used for sensing magnetic field signals of the magnet inside the adapter. When the rotating shaft of the throttle drives the adapter to rotate, the magnetic field signals, which act on the sensor chip, change in a periodic manner. The magnetic field signals, which are sensed by the sensor chip and change in a periodic manner, are converted into electric signals to be output to the filter circuit. The filter circuit filters the received signals and transmits the signals to an engine electronic control unit connected with the throttle sensor. The engine electronic control unit computes the received electric signals representing an angle of a valve block of the throttle to obtain an accurate angle of the valve block of the throttle, thereby accurately controlling a direct-current motor driving the valve block of the throttle to rotate.
Description
Technical field
The utility model belongs to the engine control system technical field, relates in particular to the non-contact electronic throttle sensor of automobile engine control system.
Background technology
Electronic fuel injection engine is to adopt electronic control unit (engine controller), replaces traditional mechanical system (as carburetor) and comes the control engine system.Electronic throttle is that the device of combustion air is provided to electronic fuel injection engine, and its inside is provided with throttle position sensor, changes the aperture numerical value of air throttle valve block into electronic signal and transmits electronic control unit.
In prior art, for throttle opening manual drag-line or the variable-resistance detection modes of adopting of electronic fuel injection engine more.Drag-line and variable-resistance mechanical connection manner cause the throttle opening precision not high, all can not realize accurate location; The variable resistor thick-film resistor forms that the contact is arranged that adopt, long-time wearing and tearing easily cause loose contact, the output signal mistake more.When particularly idling is with oiling, the throttle opening control accuracy is difficult to grasp, and causes that engine fuel does not mate to oil mass and dynamic property, causes the fuel oil waste.Thick-film resistor often adopts precious metal material, and is expensive.
Summary of the invention
For above-mentioned technical matters, machinery-free wearing and tearing when the utility model provides a kind of use, long service life, cost is low, the non-contact electronic throttle sensor that accuracy of detection is high.
To achieve these goals, the technical solution adopted in the utility model is as follows:
A kind of non-contact electronic throttle sensor, it is characterized in that, comprise housing, circuit board, adapter are installed in this housing, be equipped with on described circuit board for sensor chip and the filtering circuit of measuring air throttle valve block aperture, described adapter is used for being connected with the rotating shaft of air throttle, in this adapter, magnet is installed, described adapter is over against described sensor chip, the output terminal of described sensor chip is connected with the input end of described filtering circuit, this filtering circuit output air throttle valve block angle electric signal.
Described housing outer surface is provided with plug, on this plug, contact pin is installed, and this contact pin is electrically connected to described circuit board.
Two slotting springs also are installed in described housing, and the front end of this slotting spring is positioned on described plug, and the rear end connects the direct current generator that is used for controlling the rotation of air throttle valve block.
It is characterized in that, described circuit board adopts high temp glass cloth substrate (FR-4) or ceramic substrate material.
Described sensor chip is a doubleway output sensor chip or two single channel output transducer chips, and this sensor chip adopts Hall element or magnetoresistance effect chip.
Described magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip.
The edge of described housing is provided with pilot hole.
Compared with prior art good effect of the present utility model is:
on the circuit board of installing in housing, sensor chip and filtering circuit are installed, the rotating shaft of air throttle is connected with adapter, magnet is installed in adapter, adapter is over against sensor chip, the field signal of sensor chip perception adapter internal magnet, when the rotating shaft of air throttle drives the adapter rotation, the field signal that acts on sensor chip is to change in the cycle, the cycle changing magnetic field signal that this sensor chip perceives changes into electric signal transmission to filtering circuit, filtering circuit carries out filtering to the received signal, and be sent to engine electronic control unit that this throttle sensor is connected in, engine electronic control unit calculates the electric signal that represents air throttle valve block angle that receives, draw the accurate angle of air throttle valve block, thereby can accurately control the direct current generator that drives the rotation of air throttle valve block.
Because sensor chip does not contact with the adapter that magnet is installed, therefore contactless electronic throttle sensor can not only directly be replaced the electronic throttle sensor in existing electric injection system on electric, and there is no mechanical wear when using, have longer serviceable life, reliability is high, and cost is lower, and higher accuracy of detection is arranged, good linearity, the range of linearity is wide.
Because sensor chip has adopted Hall element or magnetoresistance effect chip, improve sensitivity and permanance, and can realize the change curve of output by online programming, increased the signal output accuracy, reduced alignment error.
Circuit board adopts high temp glass cloth substrate (FR-4) or ceramic substrate material, can be high temperature resistant.
To sum up the utlity model has highly sensitive, good linearity, the range of linearity is wide, the anti-adverse environment ability is strong, uses heatproof high, cost is low, reliability is high, the long-life, easy for installation, safeguard simply, the characteristics of convenient maintenance are applicable to the automobile of electronic fuel injection.
Description of drawings
Fig. 1 is composition schematic diagram of the present utility model;
Fig. 2 is structural representation of the present utility model;
The upward view of Fig. 2 of Fig. 3;
Fig. 4 is the vertical view of Fig. 2;
Fig. 5 is that the components and parts on circuit board connect block diagram;
Fig. 6 is the graph of a relation of air throttle valve block angle and output voltage.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
To shown in Figure 5, a kind of non-contact electronic throttle sensor comprises housing 1, is provided with pilot hole 9 at the edge of housing 1 as Fig. 1, be with screw by this pilot hole 9 with this non-contact electronic throttle installation of sensors on throttle body.Circuit board 4, adapter 5 are installed in housing 1, be equipped with on described circuit board 4 for sensor chip 7 and the filtering circuit of measuring air throttle valve block aperture, described adapter 5 is used for being connected with the rotating shaft of air throttle, in this adapter 5, magnet 6 is installed, described adapter 5 is over against described sensor chip 7, the output terminal of described sensor chip 7 is connected with the input end of described filtering circuit, and this filtering circuit output air throttle valve block angle electric signal is to engine electronic control unit.
on the circuit board 4 of housing 1 interior installation, sensor chip 7 and filtering circuit are installed, the rotating shaft of air throttle is connected with adapter 5, magnet 6 is installed in adapter 5, adapter 5 is over against sensor chip 7, the field signal of sensor chip 7 perception adapter internal magnets 5, when the rotating shaft of air throttle drives adapter 5 rotation, the field signal that acts on sensor chip 7 is to change in the cycle, the cycle changing magnetic field signal that this sensor chip 7 perceives changes into electric signal transmission to filtering circuit, filtering circuit carries out filtering to the received signal, and be sent to engine electronic control unit that this throttle sensor is connected in, engine electronic control unit calculates the electric signal that represents air throttle valve block angle that receives, draw the accurate angle of air throttle valve block, thereby can accurately control the direct current generator that drives the rotation of air throttle valve block.
When reality was used, the output terminal of filtering circuit will connect the output that pull-up resistor or pull down resistor are realized signal.The output terminal of filtering circuit has some Lu Danzhi outputs, and every Lu Danzhi output connects according to actual needs pull down resistor or pull-up resistor is realized the function that signal is exported.
Because sensor chip 7 does not contact with the adapter 5 that magnet is installed, therefore contactless electronic throttle sensor can not only directly be replaced the electronic throttle sensor in existing electric injection system on electric, and there is no mechanical wear when using, have longer serviceable life, reliability is high, and cost is lower, and higher accuracy of detection is arranged, good linearity, the range of linearity is wide.
Housing 1 outside surface is provided with plug 8, on this plug 8, contact pin 2 is installed, and this contact pin 2 is connected with circuit board 4.Two slotting springs 3 also are installed in housing 1, and the front end of this slotting spring 3 is positioned on described plug 8, and the rear end connects by two binding posts 10 direct current generator that is used for controlling the rotation of air throttle valve block.
Contact pin 2 is electrically connected to circuit board 4, and plug 8 is used for docking with the connection terminal of engine electronic control unit, uses simple.Contact pin 2 has not only been realized to the circuit supply on circuit board 4, and the signal of sensor chip 7 outputs is transferred to engine electronic control unit through contact pin.
At two slotting springs 3 of housing 1 interior installation, realized the angle of engine electronic control unit according to the air throttle valve block, control the direct current motor running.The line of circuit board all passes through plug 8 with the line of controlling direct current generator to be realized being connected with engine electronic control unit, installs simple, easy to use.
Circuit board 4 adopts high temp glass cloth substrate (FR-4) or ceramic substrate material, and heat-resisting quantity is good, uses safety.
One tunnel output signal of doubleway output sensor chip is to increase with the valve block aperture voltage signal that rises, and another road output signal is to increase with the valve block aperture voltage signal that descends.An output signal of two single channel output transducer chips is to increase with the valve block aperture voltage signal that rises, and another piece output signal is to increase with the valve block aperture voltage signal that descends.The relationship consistency of its output voltage and air throttle valve block angle, as shown in Figure 6.
To sum up the utlity model has highly sensitive, good linearity, the range of linearity is wide, the anti-adverse environment ability is strong, uses heatproof high, cost is low, reliability is high, the long-life, easy for installation, safeguard simply, the characteristics of convenient maintenance are applicable to the automobile of electronic fuel injection.
Above-described embodiment of the present utility model is only to be explanation the utility model example, and is not to be restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes, can't give all embodiments exhaustive here.Everyly belong to the row that apparent variation that the technical solution of the utility model amplifies out or change still are in protection domain of the present utility model.
Claims (7)
1. non-contact electronic throttle sensor, it is characterized in that, comprise housing (1), circuit board (4) is installed in this housing (1), adapter (5), be equipped with on described circuit board (4) for sensor chip (7) and the filtering circuit of measuring air throttle valve block aperture, described adapter (5) is used for being connected with the rotating shaft of air throttle, magnet (6) is installed in this adapter (5), described adapter (5) is over against described sensor chip (7), the output terminal of described sensor chip (7) is connected with the input end of described filtering circuit, this filtering circuit output air throttle valve block angle electric signal.
2. non-contact electronic throttle sensor according to claim 1, is characterized in that, described housing (1) outside surface is provided with plug (8), and contact pin (2) is installed on this plug (8), and this contact pin (2) is electrically connected to described circuit board (4).
3. non-contact electronic throttle sensor according to claim 2, it is characterized in that, two slotting springs (3) also are installed in described housing (1), and the front end of this slotting spring (3) is positioned on described plug (8), and the rear end connects the direct current generator that is used for controlling the rotation of air throttle valve block.
4. non-contact electronic throttle sensor according to claim 1 and 2, is characterized in that, described circuit board (4) adopts high temp glass cloth substrate or ceramic substrate material.
5. non-contact electronic throttle sensor according to claim 1, it is characterized in that, described sensor chip (7) is a doubleway output sensor chip or two single channel output transducer chips, and this sensor chip (7) adopts Hall element or magnetoresistance effect chip.
6. non-contact electronic throttle sensor according to claim 5, is characterized in that, described magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip.
7. according to claim 1 and 2 or 3 described non-contact electronic throttle sensors, is characterized in that, the edge of described housing (1) is provided with pilot hole (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032582 CN203011398U (en) | 2013-01-22 | 2013-01-22 | Non-contact electronic throttle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320032582 CN203011398U (en) | 2013-01-22 | 2013-01-22 | Non-contact electronic throttle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011398U true CN203011398U (en) | 2013-06-19 |
Family
ID=48602986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320032582 Expired - Lifetime CN203011398U (en) | 2013-01-22 | 2013-01-22 | Non-contact electronic throttle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011398U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673870A (en) * | 2013-12-17 | 2014-03-26 | 哈姆林电子(苏州)有限公司 | Angle sensor |
| CN103673871A (en) * | 2013-12-17 | 2014-03-26 | 哈姆林电子(苏州)有限公司 | Angle sensor |
| CN104121098A (en) * | 2014-07-16 | 2014-10-29 | 重庆渝辉机械有限公司 | Electronic throttle valve of engine |
| CN104533638A (en) * | 2014-12-30 | 2015-04-22 | 浙江正奥汽配有限公司 | Management system and method for closing parts of cylinders of engine |
| CN104653301A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for low speed and high power of automobile throttle |
| CN104653300A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for uniform motion of automobile throttle |
| CN104121098B (en) * | 2014-07-16 | 2017-01-04 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
-
2013
- 2013-01-22 CN CN 201320032582 patent/CN203011398U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653301A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for low speed and high power of automobile throttle |
| CN104653300A (en) * | 2013-11-25 | 2015-05-27 | 陕西国力信息技术有限公司 | Brushless DC (direct current) motor for uniform motion of automobile throttle |
| CN103673870A (en) * | 2013-12-17 | 2014-03-26 | 哈姆林电子(苏州)有限公司 | Angle sensor |
| CN103673871A (en) * | 2013-12-17 | 2014-03-26 | 哈姆林电子(苏州)有限公司 | Angle sensor |
| CN104121098A (en) * | 2014-07-16 | 2014-10-29 | 重庆渝辉机械有限公司 | Electronic throttle valve of engine |
| CN104121098B (en) * | 2014-07-16 | 2017-01-04 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
| CN104533638A (en) * | 2014-12-30 | 2015-04-22 | 浙江正奥汽配有限公司 | Management system and method for closing parts of cylinders of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Northern New Chongqing 401122 ring Yunzao Road No. 3 Patentee after: UNITED AUTOMOTIVE ELECTRONIC SYSTEMS (CHONGQING) CO.,LTD. Address before: 401122 Chongqing City, Yubei District economic development zone was opened Yunzao Road No. 3 Patentee before: CHONGQING CHANGAN VISTEON ENGINE CONTROL SYSTEMS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |