CN201021909Y - Torque sensor - Google Patents
Torque sensor Download PDFInfo
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- CN201021909Y CN201021909Y CNU200620016572XU CN200620016572U CN201021909Y CN 201021909 Y CN201021909 Y CN 201021909Y CN U200620016572X U CNU200620016572X U CN U200620016572XU CN 200620016572 U CN200620016572 U CN 200620016572U CN 201021909 Y CN201021909 Y CN 201021909Y
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Abstract
The utility model relates to a torque sensor, which comprises a torque bar, a first magnetism conducting device fixed on one end of the torque bar and a second magnetism conducting device connected with the other end of the torque bar, a first coil which can be energized forms a constant flux in the first magnetism conducting device, a second coil which can be energized forms a variable flux in the second magnetism conducting device, the variable flux of the second magnetism conducting device changes with the torsion of the torque bar, the current and the voltage of the second coil change with the variable flux, and the torque sensor exports the current or the voltage of the first coil and the second coil. The torque sensor of the utility model adopts the non-contact mode and directly coverts torque into electric signal by sensing the change of the flux with the coils, which improves the accuracy of the torque sensor, prolongs the service life and simultaneously greatly reduces production costs compared with prior torque sensors.
Description
[technical field]
The utility model relates to a kind of torque sensor, and it is low specifically to relate to a kind of cost, the torque sensor that long service life and precision are high.
[background technology]
The electric boosting steering system that is used for auto industry generally comprises bearing circle, torque sensor, ECU (Electrical Control Unit) and assisted electric machine.Electric booster system need be converted to electric signal with the torque of bearing circle, sends ECU (Electrical Control Unit) to, and ECU (Electrical Control Unit) produces suitable current, drives assist motor and produces suitable power-assisted, finishes power-assisted steering.Electric boosting steering system is a kind of motor that the motor turning of being arranged on is fastened that has, thereby so that by using ECU (Electrical Control Unit) that the system that the power that provides to motor alleviates pilot control work is provided.
In traditional general electric boosting steering system, all to use torque sensor.Torque sensor is a kind of unit that torque axis on the bearing circle is changed into electric signal.Common torque sensor uses potentiometer, and the mode of employing Mechanical Contact is touched the potentiometer current potential and changed.Specifically, when on the bearing circle moment of torsion being arranged, the torsion bar of closure dish produces and reverses relatively, and the annulus that torsion bar relatively rotates back drive torsion bar below connection moves up and down, and the annulus that moves up and down drives the potentiometer rotation again.On potentiometer, add constant voltage, just produced a voltage that changes with change in torque.But traditional torque sensor often rotates potentiometer, annulus and all can produce wearing and tearing because potentiometer, annulus and fixed wall constantly rub, and greatly reduces the serviceable life of sensor.And because the effect of frictional resistance, the feel when bearing circle uses is poor, simultaneously sensor to bearing circle to reverse induction precision also lower.Further intermediate link is a lot of in its transition process from the moment of torsion to the electric signal of current potential formula torque sensor of using in the tradition, and number of spare parts is a lot, and cost is very high.
In traditional high gear electric boosting steering system, adopt the optical profile type torque sensor.Described optical profile type torque sensor is measured the angle that torsion bar reverses by the relative displacement of grating, and the variation with light is converted into electric signal again, through amplifying and modulate circuit, exports corresponding torque signal.But, though the optical profile type torque sensor is contactless, there is not the wear problems life-span long, and the precision height.But the cost of its making is very high, and the also corresponding more complicated of the high manufacture craft of the accuracy requirement of grating.In general electric boosting steering system, seldom adopt.
[summary of the invention]
The purpose of this utility model is that a kind of cost of proposition is low, the torque sensor that long service life and precision are high.
The technical scheme that realizes above-mentioned purpose is: a kind of torque sensor, comprise torsion bar, be fixed on the first magnetic conduction device of torsion bar one end and be connected the second magnetic conduction device of the torsion bar other end, first coil that can switch on forms constant magnetic flux in the first magnetic conduction device, second coil that can switch on forms the variable flux amount in the second magnetic conduction device, the variable flux amount of the described second magnetic conduction device changes along with reversing of torsion bar, the electric current of described second coil and voltage change along with the variation of variable flux amount, and described torque sensor is exported the electric current or the voltage of first coil and second coil.
Described torsion bar one end is arranged with first coupling shaft, the other end is arranged with second coupling shaft, the described first magnetic conduction device comprises first magnetic guiding loop and second magnetic guiding loop of formation constant flux face toward each other, vertically fastening successively described first magnetic guiding loop in the described first coupling shaft outside and second magnetic guiding loop, the described second magnetic conduction device comprises the 3rd magnetic guiding loop, outside fastening described the 3rd magnetic guiding loop of described second coupling shaft forms the variable flux face between described the 3rd magnetic guiding loop and described second magnetic guiding loop toward each other.
Jut that the last lower edge of described second magnetic guiding loop all is provided with magnetic conduction and depressed part every magnetic, described the 3rd magnetic guiding loop is at jut that also forms the magnetic conduction that is oppositely arranged with second magnetic guiding loop near a lateral edges place of second magnetic guiding loop and depressed part every magnetic, form the constant flux face between the jut of the upper limb of described second magnetic guiding loop and first magnetic guiding loop, between the jut of the lower edge of described second magnetic guiding loop and the 3rd magnetic guiding loop upper limb jut along with the described variable flux face of formation that reverses of torsion bar.
Described torque sensor also comprises a signal generating circuit, and described signal generating circuit comprises oscillator and the amplifier of connecting with oscillator, and the signal of described oscillator is defeated by first coil and second coil respectively after amplifying through amplifier.
Described torque sensor also comprises a signal output apparatus, and described signal output apparatus comprises main output circuit and pay output circuit that main, pair output circuit comprises the signal amplifier and the signal conditioner of mutual series connection respectively.The electric current of described first coil or voltage signal are disturbed with the main signal orderliness device of signal shaping through the main signal amplifier of main output circuit and with making a return journey successively and are exported then; The electric current of described second coil or voltage signal are disturbed through pair signal amplifier of the output circuit of paying through an intermediary in a business deal and with making a return journey with the sqignal conditioning device of paying of signal shaping successively and are exported then.
A kind of electric boosting steering system comprises bearing circle, torque sensor, ECU (Electrical Control Unit) and assisted electric machine.Described torque sensor comprises the torsion bar of closure dish, be fixed on the first magnetic conduction device of torsion bar one end and be connected the second magnetic conduction device of the torsion bar other end, first coil that can switch on forms constant magnetic flux in the first magnetic conduction device, second coil that can switch on forms the variable flux amount in the second magnetic conduction device, the variable flux amount of the described second magnetic conduction device changes along with reversing of torsion bar, the electric current of described second coil and voltage change along with the variation of variable flux amount, described ECU (Electrical Control Unit) is calculated the size with the power-assisted electric current of turning to of assisted electric machine according to the electric current of first coil and second coil output or voltmeter, finishes power steering control.
Described torsion bar one end is arranged with first coupling shaft, the other end is arranged with second coupling shaft, the described first magnetic conduction device comprises first magnetic guiding loop and second magnetic guiding loop of formation constant flux face toward each other, vertically fastening successively described first magnetic guiding loop in the described first coupling shaft outside and second magnetic guiding loop, the described second magnetic conduction device comprises the 3rd magnetic guiding loop, outside fastening described the 3rd magnetic guiding loop of described second coupling shaft forms the variable flux face between described the 3rd magnetic guiding loop and described second magnetic guiding loop toward each other.
Jut that the last lower edge of described second magnetic guiding loop all is provided with magnetic conduction and depressed part every magnetic, described the 3rd magnetic guiding loop is at jut that also forms the magnetic conduction that is oppositely arranged with second magnetic guiding loop near a lateral edges place of second magnetic guiding loop and depressed part every magnetic, form the constant flux face between the jut of the upper limb of described second magnetic guiding loop and first magnetic guiding loop, between the jut of the lower edge of described second magnetic guiding loop and the 3rd magnetic guiding loop upper limb jut along with the described variable flux face of formation that reverses of torsion bar.
Described torque sensor also comprises a signal generating circuit, and described signal generating circuit comprises oscillator and the amplifier of connecting with oscillator, and the signal of described oscillator is defeated by first coil and second coil respectively after amplifying through amplifier.
Described torque sensor also comprises a signal output apparatus, and described signal output apparatus comprises main output circuit and pay output circuit that main, pair output circuit comprises the signal amplifier and the signal conditioner of mutual series connection respectively.The main signal orderliness device that the electric current of described first coil or voltage signal are disturbed through the main signal amplifier of main output circuit and with making a return journey successively with signal shaping outputs to ECU (Electrical Control Unit) then; The electric current of described second coil or voltage signal output to ECU (Electrical Control Unit) then through pair sqignal conditioning device of paying signal amplifier and disturbing with making a return journey with signal shaping of the output circuit of paying through an intermediary in a business deal successively.
The utility model adopts technique scheme, its beneficial technical effects is: 1) in the utility model, when torsion bar produces angular displacement under the steering wheel torque effect, directly changed the size of the second magnetic conduction device magnetic flux, directly produced the change of electrical quantity, reduce intermediate link, signal transmission link, thereby reduced the error of output signal, improved the precision of torque sensor; 2) in the torque sensor of the present utility model, counterrotating second magnetic guiding loop and the 3rd magnetic guiding loop each other and with coil between do not have being connected and contacting of machinery, but produce the contact of signal by the conduction of magnetic, so there are not the machinery wearing and tearing, prolonged the serviceable life of torque sensor; 3) in the utility model, when torsion bar produces certain relative angular displacement, also produced angular displacement between second magnetic guiding loop and the 3rd magnetic guiding loop, relative magnetic conductive area between such second magnetic guiding loop and the 3rd magnetic guiding loop changes, cause the change of the magnetic flux that passes through, and the change of magnetic flux has directly produced corresponding anti-motional electromotive force in second coil.Thereby realized that mechanical variation has directly changed into the variation of electrical quantity by the conduction of magnetic.Moment of torsion is few to the transform part of electricity, and used part is few, greatly reduces cost.
[description of drawings]
Below by embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail:
Fig. 1 is the physical construction synoptic diagram of torque sensor of the present invention.
Fig. 2 is the structural representation of second and third magnetic guiding loop of torque sensor of the present invention.
Fig. 3 is the circuit theory diagrams of torque sensor of the present invention.
[embodiment]
The utility model relates to a kind of torque sensor that is used for automobile assisted power steering system.
Described servo steering system comprises bearing circle, torque sensor, ECU (Electrical Control Unit) and assisted electric machine.Its basic functional principle is: when steering wheel rotation, described torque sensor is converted into electric signal with the dtc signal of detected bearing circle and delivers to ECU (Electrical Control Unit), ECU (Electrical Control Unit) is calculated according to torque signal, vehicle speed signal, the heavy signal of axle etc. again, draw the size with the power-assisted electric current of turning to of assisted electric machine, finish the power steering control of automobile.
Please refer to Fig. 1 to Fig. 2, described torque sensor comprises a torsion bar 10, the first magnetic conduction device, the second magnetic conduction device, first coil 40 around the first magnetic conduction device, second coil 50 that centers on the second magnetic conduction device and support torsion bar 10 and fixes the supporter (figure does not show) of first, second coil 40,50.
Sheathed first coupling shaft 20 of torsion bar 10 1 ends, sheathed second coupling shaft 60 of the other end of torsion bar 10.Described first coupling shaft 20 stretches out outside the supporter and with bearing circle and is connected.Described first coupling shaft 20 by bearing fixing on supporter.Described second coupling shaft 60 stretches out supporter downwards and is connected on the steering box of automobile.Described second coupling shaft 60 by bearing fixing on supporter.
The described first magnetic conduction device comprises first magnetic guiding loop 30 and second magnetic guiding loop 32 of the formed constant flux face that is provided with toward each other.Described first magnetic guiding loop 30 and second magnetic guiding loop 32 vertically are fastened on around described first coupling shaft, 20 cylindricals successively, and rotate synchronously with first coupling shaft 20.The certain distance in interval between described first magnetic guiding loop 30 and second magnetic guiding loop 32, the magnetic flux that the coil 40 of winning is produced can well pass through the constant flux face of formation between first magnetic guiding loop 30 and second magnetic guiding loop 32.
The described second magnetic conduction device comprises the 3rd magnetic guiding loop 34, and described the 3rd magnetic guiding loop 34 is fastened on the described second coupling shaft outside, and reverses synchronously with second coupling shaft 60.Be provided with toward each other between second magnetic guiding loop 32 of described the 3rd magnetic guiding loop 34 and the described first magnetic conduction device, and form the variable flux face.Be formed with suitable spacing between described the 3rd magnetic guiding loop 34 and described second magnetic guiding loop 32, and the jut between described the 3rd magnetic guiding loop 34 and described second magnetic guiding loop 32 38 is relative that certain dislocation arranged.
The last lower edge of described second magnetic guiding loop 32 all is provided with the jut 38 of magnetic conduction and depressed part 36 every magnetic, and described the 3rd magnetic guiding loop 34 also is provided with the jut 38 of the magnetic conduction relative with second magnetic guiding loop 32 and depressed part 36 every magnetic at the lateral edges place near second magnetic guiding loop 32.Form described constant flux face between the jut 38 of the upper limb of described second magnetic guiding loop 32 and first magnetic guiding loop 30, between the jut 38 of the lower edge of described second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 upper limb juts 38 along with the described variable flux face of formation that reverses of torsion bar 10.
The lower edge of described first magnetic guiding loop 30 and second magnetic guiding loop, 32 upper limb juts, 38 connecting position places are surrounded by described first coil 40.The jut 38 of the lower edge of described second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 upper limb juts 38 connecting position places are surrounded by described second coil 50.The torque signal of first coil 40 and 50 outputs of second coil, promptly voltage or current signal are connected by electrical wiring on the control circuit.
Please refer to Fig. 3, described control circuit comprises to first coil 40 and second coil 50 provides the signal generating circuit of oscillator signal and the signal output apparatus of output first coil 40 and second coil, 50 signals.
Described signal generating circuit comprise oscillator, the amplifier that is connected in series with oscillator, with amplifier and the two-way by-passed resistor that connects, each road resistance connects a coil.Oscillator produces oscillator signal, sends into amplifier and carries out the energy amplification.Oscillator signal after the amplification is sent into two by-passed resistors respectively, sends in first and second coil again.
Described output circuit comprises main output circuit and pays output circuit.Described main output circuit comprises main signal amplifier, the main signal modulate circuit of mutual serial connection.The signal of described first coil is gathered and is amplified by the main signal amplifier from by-passed resistor, is gone to disturb with signal shaping after interface circuit is exported from torque signal 1 port by the main signal modulate circuit then.Described pair of output circuit comprises pair signal amplifier, pair signal conditioning circuit of mutual serial connection.The signal of described second coil is gathered and is amplified by paying signal amplifier from by-passed resistor, and a signal conditioning circuit goes to disturb with signal shaping after interface circuit is exported from torque signal 2 ports by paying then.
Power supply circuit obtains the 12V direct supply from the ECU (Electrical Control Unit) of electric boosting steering system, delivers to each module of signal generating circuit and output circuit after the processing.
On the bearing circle of electric booster system, add hand-power, moment of torsion on the bearing circle is delivered to first coupling shaft 20, moment of torsion on first coupling shaft 20 is delivered to torsion bar 10, and the moment of torsion that the moment of torsion on the torsion bar 10 is delivered on second coupling shaft, 6, the second coupling shafts 6 is delivered to steering box again.Like this, the moment of torsion of bearing circle just has been delivered on the turning-bar of vehicle front, has produced go to action.
When effect on the torsion bar 10 had moment of torsion, torsion bar 10 2 ends just produced certain relative rotation.Torque on the relative rotation of torsion bar 10 and the torsion bar 10 is directly proportional.When torsion bar 10 had relative rotation to take place, first magnetic guiding loop 30 and second magnetic guiding loop 32 did not reverse on same first coupling shaft 20 each other relatively.But second magnetic guiding loop 32 is connected on first coupling shaft 20, and first coupling shaft 20 is connected in an end of torsion bar 10; The 3rd magnetic guiding loop 34 is connected on second coupling shaft 60, and second coupling shaft 60 is connected in the other end of torsion bar 10.Under the effect of moment of torsion, between two ends of torsion bar relative rotation is arranged, promptly there is relative rotation to take place between second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34.Again owing between second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 juts 38 certain dislocation is arranged relatively, when second magnetic guiding loop 32 has relative reversing with the 3rd magnetic guiding loop 34, the relative area of the jut 38 of second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 changes, and causes the magnetic flux of second coil 50 to change.And first magnetic guiding loop 30 and second magnetic guiding loop 32 always reverse synchronously, and the magnetic flux of first coil 40 is steady state value always.
When torque sensor was worked, power supply circuit obtained the direct supply of 12V from the ECU (Electrical Control Unit) of electric boosting steering system, then to each module for power supply, makes it to work reliably.Oscillator at power supply just often produces the sine wave signal of 14.7KHZ, and this signal is sent to amplifier.Amplifier amplifies the signal rate of doing work of input, and amplifying signal is sent to two by-passed resistors respectively, is sent to first and second coil 40,50 again, arrives ground at last.The main signal output circuit is sent to the main signal amplifying circuit again from a by-passed resistor up-sampling signal.After the amplification through the main signal amplifying circuit, enter the main signal modulate circuit again, by interface circuit torque signal 1 is delivered to the ECU (Electrical Control Unit) of electric power steering then.Pay signal output apparatus from a by-passed resistor up-sampling signal, be sent to again and pay signal amplification circuit.After the amplification of the signal amplification circuit of paying through an intermediary in a business deal, enter again and pay signal conditioning circuit, by interface circuit torque signal 2 is delivered to the ECU (Electrical Control Unit) of electric power steering then.
When not adding hand-power on the bearing circle, the moment of torsion on the torsion bar is zero, and torsion bar does not have relative rotation.Magnetic conductive area between the magnetic conductive area between first magnetic guiding loop 30 and second magnetic guiding loop 32 and second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 equates.Electric current in first coil 40 and second coil 50 equates that the signal that produces equates on resistance.After the amplifier amplification, master's pair two road torque signals 1,2 equate and are 2.5V.When on the bearing circle hand-power being arranged, torsion bar produces certain reversing relatively, and second magnetic guiding loop 32 also has relative reversing with the 3rd magnetic guiding loop 34.The relative area of the teat 38 of circle second magnetic guiding loop 32 and the 3rd magnetic guiding loop 34 changes, and then the magnetic flux area of second coil 50 changes, and magnetic flux changes.Correspondingly the electric current in second coil 50 changes, and the voltage on the corresponding by-passed resistor also changes.Amplify through amplifier, again modulate circuit go to disturb with signal shaping after, produce corresponding voltage signal, this torque signal 1,2 has just been represented the size of moment of torsion.Torque signal 1,2 is delivered to the ECU (Electrical Control Unit) of electric power steering, just can produce power-assisted and move.
In the present embodiment, the voltage clamp when master, pair signal conditioning circuit are zero with moment of torsion is 2.5V。When moment of torsion is timing, voltage is from 2.5V increases, when moment of torsion when negative, voltage is from 2.5V descends.
Claims (10)
1. torque sensor, it is characterized in that: comprise torsion bar, be fixed on the first magnetic conduction device of torsion bar one end and be connected the second magnetic conduction device of the torsion bar other end, first coil that can switch on forms constant magnetic flux in the first magnetic conduction device, second coil that can switch on forms the variable flux amount in the second magnetic conduction device, the variable flux amount of the described second magnetic conduction device changes along with reversing of torsion bar, the electric current of described second coil and voltage change along with the variation of variable flux amount, and described torque sensor is exported the electric current or the voltage of first coil and second coil.
2. torque sensor according to claim 1, it is characterized in that: described torsion bar one end is arranged with first coupling shaft, the other end is arranged with second coupling shaft, the described first magnetic conduction device comprises first magnetic guiding loop and second magnetic guiding loop of formed constant flux face toward each other, vertically fastening successively described first magnetic guiding loop in the described first coupling shaft outside and second magnetic guiding loop, the described second magnetic conduction device comprises the 3rd magnetic guiding loop, outside fastening described the 3rd magnetic guiding loop of described second coupling shaft forms the variable flux face between described the 3rd magnetic guiding loop and described second magnetic guiding loop toward each other.
3. torque sensor according to claim 2, it is characterized in that: jut that the last lower edge of described second magnetic guiding loop all is provided with magnetic conduction and depressed part every magnetic, described the 3rd magnetic guiding loop is at jut that also forms the magnetic conduction that is oppositely arranged with second magnetic guiding loop near a lateral edges place of second magnetic guiding loop and depressed part every magnetic, form described constant flux face between the jut of the upper limb of described second magnetic guiding loop and first magnetic guiding loop, between the jut of the lower edge of described second magnetic guiding loop and the 3rd magnetic guiding loop upper limb jut along with the described variable flux face of formation that reverses of torsion bar.
4. according to any described torque sensor of claim 1-3, it is characterized in that: also comprise a signal generating circuit, described signal generating circuit comprises oscillator and the amplifier of connecting with oscillator, and the signal of described oscillator is defeated by first coil and second coil respectively after amplifying through amplifier.
5. according to any described torque sensor of claim 1-3, it is characterized in that: also comprise a signal output apparatus, described signal output apparatus comprises main output circuit and pays output circuit that main, pair output circuit comprises the signal amplifier and the signal conditioner of mutual series connection respectively.The electric current of described first coil or voltage signal are disturbed with the main signal orderliness device of signal shaping through the main signal amplifier of main output circuit and with making a return journey successively and are exported then; The electric current of described second coil or voltage signal are disturbed through pair signal amplifier of the output circuit of paying through an intermediary in a business deal and with making a return journey with the sqignal conditioning device of paying of signal shaping successively and are exported then.
6. electric boosting steering system, comprise bearing circle, torque sensor, ECU (Electrical Control Unit) and assisted electric machine, it is characterized in that: described torque sensor comprises the torsion bar of closure dish, be fixed on the first magnetic conduction device of torsion bar one end and be connected the second magnetic conduction device of the torsion bar other end, first coil that can switch on forms constant magnetic flux in the first magnetic conduction device, second coil that can switch on forms the variable flux amount in the second magnetic conduction device, the variable flux amount of the described second magnetic conduction device changes along with reversing of torsion bar, the electric current of described second coil and voltage change along with the variation of variable flux amount, described ECU (Electrical Control Unit) is calculated the size with the power-assisted electric current of turning to of assisted electric machine according to the electric current of first coil and second coil output or voltmeter, finishes power steering control.
7. electric boosting steering system according to claim 6, it is characterized in that: described torsion bar one end is arranged with first coupling shaft, the other end is arranged with second coupling shaft, the described first magnetic conduction device comprises first magnetic guiding loop and second magnetic guiding loop of formation constant flux face toward each other, vertically fastening successively described first magnetic guiding loop in the described first coupling shaft outside and second magnetic guiding loop, the described second magnetic conduction device comprises the 3rd magnetic guiding loop, outside fastening described the 3rd magnetic guiding loop of described second coupling shaft forms the variable flux face between described the 3rd magnetic guiding loop and described second magnetic guiding loop toward each other.
8. electric boosting steering system according to claim 7, it is characterized in that: jut that the last lower edge of described second magnetic guiding loop all is provided with magnetic conduction and depressed part every magnetic, described the 3rd magnetic guiding loop is at jut that also forms the magnetic conduction that is oppositely arranged with second magnetic guiding loop near a lateral edges place of second magnetic guiding loop and depressed part every magnetic, form described constant flux face between the jut of the upper limb of described second magnetic guiding loop and first magnetic guiding loop, between the jut of the lower edge of described second magnetic guiding loop and the 3rd magnetic guiding loop upper limb jut along with the described variable flux face of formation that reverses of torsion bar.
9. according to any described electric boosting steering system of claim 6-8, it is characterized in that: also comprise a signal generating circuit, described signal generating circuit comprises oscillator and the amplifier of connecting with oscillator, and the signal of described oscillator is defeated by first coil and second coil respectively after amplifying through amplifier.
10. according to any described electric boosting steering system of claim 6-8, it is characterized in that: also comprise a signal output apparatus, described signal output apparatus comprises the master, pays two output circuits, and main, pair two output circuits comprise the signal amplifier and the signal conditioner of mutual series connection respectively.The main signal orderliness device that the electric current of described first coil or voltage signal are disturbed through the main signal amplifier of main output circuit and with making a return journey successively with signal shaping outputs to ECU (Electrical Control Unit) then; The electric current of described second coil or voltage signal output to ECU (Electrical Control Unit) then through pair sqignal conditioning device of paying signal amplifier and disturbing with making a return journey with signal shaping of the output circuit of paying through an intermediary in a business deal successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620016572XU CN201021909Y (en) | 2006-12-18 | 2006-12-18 | Torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200620016572XU CN201021909Y (en) | 2006-12-18 | 2006-12-18 | Torque sensor |
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| Publication Number | Publication Date |
|---|---|
| CN201021909Y true CN201021909Y (en) | 2008-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200620016572XU Expired - Lifetime CN201021909Y (en) | 2006-12-18 | 2006-12-18 | Torque sensor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708736B (en) * | 2009-12-11 | 2011-08-10 | 北汽福田汽车股份有限公司 | Steering wheel corner sensor device and automobile electronic stabilization system |
| CN104879471A (en) * | 2014-02-28 | 2015-09-02 | 福特全球技术公司 | Torque Sensor Assembly For A Motor Vehicle And Method Of Measuring Torque |
| CN108760133A (en) * | 2018-07-23 | 2018-11-06 | 武汉楚冠捷汽车科技有限公司 | A kind of torque sensor |
| CN110176847A (en) * | 2017-09-07 | 2019-08-27 | 刘远芳 | Passive proportion control device |
| CN113677967A (en) * | 2019-04-02 | 2021-11-19 | 蒂森克虏伯普利斯坦股份公司 | Torque sensor with inductively coupled, intermeshing components |
-
2006
- 2006-12-18 CN CNU200620016572XU patent/CN201021909Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708736B (en) * | 2009-12-11 | 2011-08-10 | 北汽福田汽车股份有限公司 | Steering wheel corner sensor device and automobile electronic stabilization system |
| CN104879471A (en) * | 2014-02-28 | 2015-09-02 | 福特全球技术公司 | Torque Sensor Assembly For A Motor Vehicle And Method Of Measuring Torque |
| CN110176847A (en) * | 2017-09-07 | 2019-08-27 | 刘远芳 | Passive proportion control device |
| CN110212733A (en) * | 2017-09-07 | 2019-09-06 | 刘远芳 | The adjusting method of passive proportion control device |
| CN110176847B (en) * | 2017-09-07 | 2021-04-27 | 刘远芳 | Passive proportional control device |
| CN110212733B (en) * | 2017-09-07 | 2021-06-01 | 刘远芳 | Adjusting method of passive proportional control device |
| CN108760133A (en) * | 2018-07-23 | 2018-11-06 | 武汉楚冠捷汽车科技有限公司 | A kind of torque sensor |
| CN113677967A (en) * | 2019-04-02 | 2021-11-19 | 蒂森克虏伯普利斯坦股份公司 | Torque sensor with inductively coupled, intermeshing components |
| CN113677967B (en) * | 2019-04-02 | 2023-09-26 | 蒂森克虏伯普利斯坦股份公司 | Torque sensor with inductively coupled and intermeshed components |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
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