CN208665308U - A kind of device measuring vehicle steering angle - Google Patents
A kind of device measuring vehicle steering angle Download PDFInfo
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- CN208665308U CN208665308U CN201721773447.8U CN201721773447U CN208665308U CN 208665308 U CN208665308 U CN 208665308U CN 201721773447 U CN201721773447 U CN 201721773447U CN 208665308 U CN208665308 U CN 208665308U
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- knuckle arm
- angular transducer
- steering angle
- angle
- vehicle steering
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Abstract
The utility model discloses a kind of device for measuring vehicle steering angle, including angular transducer, the knuckle arm of vehicle steering mechanism and the junction of vehicle bridge is arranged in angular transducer, and angular transducer is for directly measuring the deflection angle of knuckle arm.By the way that angular transducer to be set up directly on to the knuckle arm of vehicle steering mechanism and the junction of vehicle bridge, it can be realized the direct measurement to the deflection angle of knuckle arm in turn, so as to avoid the transmission device of steering mechanism, since drive gap or transmission parts have that the steering angle of measurement caused by compliant member and actual steering angle are inconsistent in transmission process, and then avoids Vehicular turn angular measurement and there are problems that deviation.
Description
Technical field
The utility model relates to vehicle turning control technology field more particularly to a kind of devices for measuring vehicle steering angle.
Background technique
Intelligent driving automobile needs to obtain the feedback of wheel steering angle when self-steering.Wheel steering angle is measured, and will
Corner information feedback most control system becomes the key point of Vehicular turn.
The corner information acquisition device of existing Vehicular turn, as shown in Figure 1, the steering mechanism of vehicle generally comprises: turning
Pass through first turn to disk 1, the steering shaft connecting with steering wheel 12, the angular transducer 3 being arranged in steering shaft 2 and steering shaft 2
To universal joint 4 connect steering drive axle 5, connect by the second steering universal joint 6 with steering drive axle 5 diverter 7, pass through
Steering drag link 9 that pitman arm 8 is connect with diverter 7, the knuckle arm 10 and and knuckle arm being connect with steering drag link 9
10 vehicle bridge 11 connected by fixed pin shaft, wherein knuckle arm 10 occurs partially for controlling connection knuckle 12 in vehicle bridge 11
Turn, the knuckle 12 of 11 two sides of vehicle bridge is connected by two tie rod arms 13 and a track rod 14.
The measurement of current vehicle steering angle is mainly mounted on the steering below steering wheel by steering wheel angle sensor
It is realized on axis.And currently used rotary angle transmitter mainly has grating sensor and Hall-type angular transducer.Wherein, light
Grating sensor is that have the hollow disk for having dug many empty slots inside the principle based on optical code disk, that is, sensor,
Some is fixed position and fills small LED light above optical code disk, and lower section fills photosensitive element, and steering wheel rotation just drives optical code disk rotation, turns
When to empty slot, photosensitive element is received by illumination, generates electric signal (high level), and not going to empty slot, just not generate electric signal (low
Level), it counts and generates how many a electric signals, in conjunction with the dimensional parameters of optical code disk, so that it may learn steering wheel has turned how many degree；
Hall-type angular transducer is made based on magnet (Hall effect), and the charged particle in electric field occurs partially under magnetic fields
Turn, then can generate voltage (Hall voltage) in the vertical direction of electric field, the polarity of Hall voltage is related with magnetic direction, direction
Disk rotation drives the magnetic field rotation of disk, counts Hall voltage polarity upset how many times, can calculate steering wheel has turned how many
Degree.
But the corner information acquisition device of above-mentioned Vehicular turn, the steering angle of measurement measured directly is turned on steering wheel
To the rotation angle of axis, and there is also a lot of transmission devices between steering shaft and wheel, transmission process certainly exists drive gap,
And certain transmission parts also have certain flexibility, and then the rotation angle and the actual corner of wheel that lead to steering shaft are not
Unanimously, so the wheel turning angle and the actual steering angle of wheel that lead to measurement there are deviations.
In conclusion how to solve the problems, such as Vehicular turn angular measurement, there are deviations, it has also become those skilled in the art are urgently
Technical problem to be solved.
Utility model content
The purpose of the utility model is to provide a kind of devices for measuring vehicle steering angle, deposit to avoid Vehicular turn angular measurement
The deviation the problem of.
To achieve the goals above, the utility model provides a kind of device for measuring vehicle steering angle, including angle passes
The knuckle arm of vehicle steering mechanism and the junction of vehicle bridge, and the angle sensor is arranged in sensor, the angular transducer
Device is used to directly measure the deflection angle of the knuckle arm.
Preferably, the angular transducer is grating sensor.
Preferably, the grating sensor includes circular grating, reflective mirror and laser emitter with optical code disk；
The circular grating is fixed on the knuckle arm；
The reflective mirror is fixed on the fixed pin shaft that the vehicle bridge is connect with the knuckle arm, the reflective mirror
Reflective surface be arranged vertically with the vehicle bridge, and the reflective mirror is located in the circular grating；
The laser emitter is fixed on the knuckle arm, and the laser emitter raises preset angle upwards
Degree, so that the axial line of the luminescent line of the laser emitter and the fixed pin shaft is in non-perpendicular angle.
Preferably, the laser emitter is nanoscale laser emitter.
Preferably, the embedded groove for being embedded in the reflective mirror is provided at the top of the fixed pin shaft.
Preferably, the side of the fixed pin shaft is provided with the threaded hole being connected to the embedded groove, the threaded hole energy
Enough and screw fit is to the reflective mirror clamping.
Preferably, the angular transducer is Hall sensor.
Content, the device of above-mentioned measurement vehicle steering angle, including angular transducer are introduced compared to background technique, angle passes
The knuckle arm of vehicle steering mechanism and the junction of vehicle bridge is arranged in sensor, and angular transducer is for directly measuring knuckle
The deflection angle of arm.By the way that angular transducer to be set up directly on to the knuckle arm of vehicle steering mechanism and the junction of vehicle bridge,
And then the direct measurement that can be realized to the deflection angle of knuckle arm is passing so as to avoid the transmission device of steering mechanism
Since there are the steering angle of measurement caused by compliant member and actual steering angle are different for drive gap or transmission parts during dynamic
The problem of cause, and then avoid Vehicular turn angular measurement and there are problems that deviation.
Detailed description of the invention
Fig. 1 is the theory structure schematic diagram of the steering mechanism of conventional truck；
Fig. 2 is the theory structure schematic diagram of the device of measurement vehicle steering angle provided by the embodiment of the utility model.
In figure 1 above and Fig. 2,
Steering wheel 1, steering shaft 2, angular transducer 3, the first steering universal joint 4, steering drive axle 5, second turn to universal
Section 6, pitman arm 8, steering drag link 9, knuckle arm 10, vehicle bridge 11, knuckle 12, tie rod arm 13, turns to cross at diverter 7
Pull rod 14, circular grating 15, reflective mirror 16, laser emitter 17.
Specific embodiment
The core of the utility model is to provide a kind of device for measuring vehicle steering angle, deposits to avoid Vehicular turn angular measurement
The deviation the problem of.
In order to make those skilled in the art more fully understand technical solution provided by the utility model, below in conjunction with attached
The utility model is described in further detail with specific embodiment for figure.
As shown in Fig. 2, the device of measurement vehicle steering angle provided by the embodiment of the utility model, including angular transducer 3,
The knuckle arm 10 of vehicle steering mechanism and the junction of vehicle bridge is arranged in angular transducer 3, and angular transducer 3 is for direct
Measure the deflection angle of knuckle arm 10.
The device of above-mentioned measurement vehicle steering angle, by the steering that angular transducer is set up directly on to vehicle steering mechanism
The junction of joint arm and vehicle bridge, and then can be realized the direct measurement to the deflection angle of knuckle arm, so as to avoid steering
The transmission device of mechanism, since there are the steerings of measurement caused by compliant member for drive gap or transmission parts in transmission process
Angle and the inconsistent problem of actual steering angle, and then avoid Vehicular turn angular measurement and there are problems that deviation.
What needs to be explained here is that above-mentioned angular transducer 3 can use grating sensor, can also be passed using Hall
Sensor, as long as the angular deflection that can be realized to knuckle arm directly measures.It, can be according to reality in actual application
Demand carries out selection setting.
In further embodiment, when angular transducer use grating sensor, the grating sensor it is specific
Structure may include circular grating 15, reflective mirror 16 and laser emitter 17 with optical code disk；Circular grating 15 is fixedly installed
On knuckle arm 10；Reflective mirror 16 is fixed on the fixed pin shaft that vehicle bridge is connect with knuckle arm 10, reflective mirror 16
Reflective surface is arranged vertically with vehicle bridge, and reflective mirror 16 is located in circular grating 15；Laser emitter 17 is fixed at knuckle
On arm 10, and laser emitter 17 raises predetermined angle upwards, so that the luminescent line of laser emitter 17 and fixed pin shaft
Axial line is in non-perpendicular angle.What needs to be explained here is that since circular grating and laser generator are to be fixed on steering
In joint arm, therefore circular grating and laser generator can be rotated with the deflection of knuckle arm；And reflective mirror is fixed on fixation
On pin shaft, fixed pin shaft itself is fixed in vehicle bridge, therefore reflective mirror remains motionless state.The grating sensor exists
In practical work process, laser beam is issued by laser emitter 17, laser beam is beaten on reflective mirror 16, through reflective mirror 16
The light of reflection is irradiated on the circular grating 16 with optical code disk, and the photosensitive element on circular grating is received by illumination, produces
Raw electric signal (generating high level)；Not according to place just do not generate electric signal (generate low level), as long as the high level of generation is believed
Number quantity be sent to entire car controller and can calculate the deflection angle of knuckle arm namely the angle of Vehicular turn.Due to
Above structure is reflected by reflective mirror, is exaggerated the generating region of high level signal, namely is exaggerated effective information, so that
It measures more accurate.
In addition, it should be noted that, reflective mirror can use the reflective mirror of glass material, it is also possible to those skilled in the art
Member common other kinds of reflective mirror, such as the reflective mirror of metal bright surface etc., as long as can be realized the reflective mirror of reflection light
?.
In some specific embodiments, above-mentioned laser emitter 17 can use nanoscale laser emitter, can also
To use common laser emitter, only the utility model preferably uses nanoscale laser emitter.
In some more specifical embodiments, it can be set at the top of above-mentioned fixed pin shaft for being embedded in reflective mirror
16 embedded groove.Make the easier for installation of reflective mirror by the way that embedded groove is arranged, and easily facilitates the fixation of reflective mirror.Than
Such as, the fixed form of reflective mirror, the side that can be fixed pin shaft are provided with the threaded hole being connected to embedded groove, and threaded hole can
With screw fit to reflective mirror clamping.It is appreciated of course that above-mentioned is only that the utility model embodiment is solid for reflective mirror
Determine the preferable examples of clamping, can also be fixed using other common fixed forms of those skilled in the art, such as
The fixed mode etc. of the mode or fixed frame of binder bonding.
The device of measurement vehicle steering angle provided by the utility model is described in detail above.It needs to illustrate
That all the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one
Entity or operation are distinguished with another entity or operation, without necessarily requiring or implying between these entities or operation
There are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the core concept of the utility model.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model,
Modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (5)
1. a kind of device for measuring vehicle steering angle, including angular transducer (3), which is characterized in that the angular transducer (3)
The junction of knuckle arm (10) and vehicle bridge of vehicle steering mechanism is set, and the angular transducer (3) is for directly surveying
Measure the deflection angle of the knuckle arm (10)；
The angular transducer (3) is grating sensor；
The grating sensor includes circular grating (15), reflective mirror (16) and laser emitter (17) with optical code disk；
The circular grating (15) is fixed on the knuckle arm (10)；
The reflective mirror (16) is fixed on the fixed pin shaft that the vehicle bridge is connect with the knuckle arm (10), described anti-
The reflective surface of light microscopic (16) is arranged vertically with the vehicle bridge, and the reflective mirror (16) is located in the circular grating (15)；
The laser emitter (17) is fixed on the knuckle arm (10), and the laser emitter (17) Xiang Shangyang
Predetermined angle is played, so that the axial line of the luminescent line of the laser emitter (17) and the fixed pin shaft is in non-perpendicular folder
Angle.
2. the device of measurement vehicle steering angle as described in claim 1, which is characterized in that the laser emitter (17) is to receive
Meter level laser emitter.
3. the device of measurement vehicle steering angle as described in claim 1, which is characterized in that the top of the fixed pin shaft is arranged
There is the embedded groove for being embedded in the reflective mirror (16).
4. the device of measurement vehicle steering angle as claimed in claim 3, which is characterized in that the side of the fixed pin shaft is arranged
There is the threaded hole being connected to the embedded groove, the threaded hole can be with screw fit to the reflective mirror clamping.
5. the device of measurement vehicle steering angle as described in claim 1, which is characterized in that the angular transducer (3) is suddenly
That sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721773447.8U CN208665308U (en) | 2017-12-18 | 2017-12-18 | A kind of device measuring vehicle steering angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721773447.8U CN208665308U (en) | 2017-12-18 | 2017-12-18 | A kind of device measuring vehicle steering angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208665308U true CN208665308U (en) | 2019-03-29 |
Family
ID=65820231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721773447.8U Active CN208665308U (en) | 2017-12-18 | 2017-12-18 | A kind of device measuring vehicle steering angle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208665308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066870A (en) * | 2020-09-29 | 2020-12-11 | 山东理工大学 | Agricultural machinery steering angle measuring device |
-
2017
- 2017-12-18 CN CN201721773447.8U patent/CN208665308U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066870A (en) * | 2020-09-29 | 2020-12-11 | 山东理工大学 | Agricultural machinery steering angle measuring device |
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