CN101709950A - Device for detecting vertical inclination angle of bodywork and method thereof - Google Patents
Device for detecting vertical inclination angle of bodywork and method thereof Download PDFInfo
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- CN101709950A CN101709950A CN200910251582A CN200910251582A CN101709950A CN 101709950 A CN101709950 A CN 101709950A CN 200910251582 A CN200910251582 A CN 200910251582A CN 200910251582 A CN200910251582 A CN 200910251582A CN 101709950 A CN101709950 A CN 101709950A
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- bodywork
- inclination angle
- linear hall
- magnetic field
- vertical inclination
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- 238000000034 method Methods 0.000 title abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 241000153246 Anteros Species 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The invention relates to a device for detecting vertical inclination angle of bodywork, comprising linear Hall sensors used for outputting different voltage signals according to different magnetic field intensities, permanent magnet and a counter which is used for receiving the voltage signals of the linear Hall sensors and calculating. The device is characterized in that the linear Hall sensors are installed at the center positions of a front shaft and a rear shaft of the bodywork, and the front shaft and the rear shaft are respectively provided with one linear Hall sensor; and the permanent magnet is arranged at the position on the lower surface of a chassis of the bodywork corresponding to the centers of the front shaft and the rear shaft of the bodywork. The invention also provides a method for detecting the vertical inclination angle of the bodywork, comprising: when the bodywork is inclined, a damping spring of a vehicle is deformed, so that the bodywork moves up and down, and the magnetic field intensity is changed; at the moment, the Hall sensors output the different voltage signals to the counter according to the different magnetic field intensities, so that the deformation and displacement of the damping spring can be judged, and the inclination angle of the bodywork is further worked out. By adopting a detection circuit provided with the linear Hall sensors, the structure is simple, the accuracy is high, and the inclination angle of the bodywork can be accurately measured in real time. Therefore, the invention provides foundation and help for the demand of development and design of the vehicles in the future.
Description
Technical field
The present invention relates to the detection method at a kind of object inclination angle, especially relate to a kind of detection method of vertical inclination angle of bodywork.
Background technology
Chinese patent CN89205616.9 discloses a kind of automobile front axle inclination angle detection instrument, and its main structure constitutes by inserting in the tested front-axle steering kingpin bore and with the mandrel of two location tapered sleeves and inclination angle detection device and two cushion blocks of being made up of guide tracked leveling ruler, slip leveling ruler and test curved boom, leaning angle graduated scale, pointer leaning angle gauge head, back rake angle positioning disc, V-arrangement locating piece.By this technology, we can be implemented in major repair of vehicle, maintenance by three levels and eliminating turn to leaning angle and the back rake angle that is used for detecting front axle when being fault, but its shortcoming is comparatively complicated, can not measure dynamic inclination angle changes, be merely able to measure static inclination angle, can not realize real-time measurement.
Along with science and technology development, growth in the living standard, people have higher requirement to configuration of automobiles, so in order to satisfy people's various demands, can use the car body obliqueness under the situation such as motor turning in some design and applied links.Automobile lighting system for example, it provides different illumination directions with regard to needing light with the difference of body sway angle.The present invention be exactly in view of the situation and in the past the deficiency of each method provided a kind of detection method of body of a motor car vertical inclination angle.
Summary of the invention
The pick-up unit that the purpose of this invention is to provide a kind of vertical inclination angle of bodywork, further purpose provides a kind of detection method, and the detection method that solves present vertical inclination angle of bodywork is comparatively complicated, can not measure dynamic inclination angle variation issue.Can inform the state of the fore-and-aft tilt of driver's vehicle body, for the safety traffic of vehicle provides assurance.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pick-up unit of vertical inclination angle of bodywork comprises according to linear hall sensor, the permanent magnet of different magnetic field intensity output varying voltage signal and the counter that receives the linear hall sensor voltage signal and calculate; It is characterized in that: described linear hall sensor is installed in vehicle body antero posterior axis center, each one of front and back; Described permanent magnet is installed chassis lower surface and corresponding position, vehicle body antero posterior axis center.
The detection method of the pick-up unit of described vertical inclination angle of bodywork, it is characterized in that: when the vehicle body run-off the straight, the damping spring of vehicle produces deformation, thereby cause that vehicle body moves up and down, cause change of magnetic field strength, at this moment Hall element is given counter according to different magnetic field intensity output varying voltage signal, thereby judges the damping spring deformational displacement, and then calculates car body obliqueness.
Beneficial effect of the present invention: owing to adopt the testing circuit of linear hall sensor, the present invention is simple in structure, precision is high, can measure the body of a motor car inclination angle accurately in real time.For later vehicle development design requirement provides basis and help.
Below with reference to drawings and Examples, the present invention is carried out comparatively detailed explanation.
Description of drawings
Fig. 1 is the pick-up unit organigram of vertical inclination angle of bodywork.
Among the figure: 1. permanent magnet, 2. Hall element, 3. the damping spring reed group, 4. chassis, 5. spool, 6. tire.
Fig. 2 is a kind of computing method sketch of vertical inclination angle of bodywork.
Among the figure: Hr represents front axle and chassis lower surface distance;
Hf represents rear axle and chassis lower surface distance;
Spring height when H represents deformation does not take place (distance of chassis lower surface and axle);
L represents the distance of antero posterior axis;
Δ h1 represents front axle spring deformation amount;
Δ h2 represents rear axle spring deformation amount.
Embodiment
Embodiment, as shown in Figure 1, a kind of pick-up unit of vertical inclination angle of bodywork is installed in vehicle antero posterior axis 5 centers with linear hall sensor 2, each one of front and back.Permanent magnet 1 is installed chassis 4 lower surfaces and axle corresponding position, center, and its work range meets the requirements.Also comprise a counter that receives the linear hall sensor voltage signal and calculate, this counter can be to be provided with separately, also can be the part of Vehicle Controller.
Damping spring produces deformation when the vehicle body run-off the straight, thereby causes that permanent magnet 1 moves up and down, and causes change of magnetic field strength, thereby at this moment linear hall sensor 2 calculates car body obliqueness according to different magnetic field intensity output varying voltage signal.
Thereby linear hall sensor is judged the damping spring deformational displacement according to magnetic field intensity, and then calculates car body obliqueness.Referring to Fig. 2, computation process is summarized as follows:
Suppose the vehicle body hypsokinesis, sensor is exported different electrical signals by change of magnetic field strength, and drawing front springs deformation according to linear relationship is Δ h1, and the back spring deformation is Δ h2.The distance of now supposing antero posterior axis is L, highly is H when deformation does not take place spring.
Front axle and chassis lower surface distance H f=H-Δ h2; Rear axle and chassis lower surface distance H r=H-Δ h1, then the vertical inclination angle of automobile is θ=arctan ((Hr-Hf)/L).
Claims (3)
1. the pick-up unit of a vertical inclination angle of bodywork comprises according to linear hall sensor, the permanent magnet of different magnetic field intensity output varying voltage signal and the counter that receives the linear hall sensor voltage signal and calculate; It is characterized in that: described linear hall sensor is installed in vehicle body antero posterior axis center, each one of front and back; Described permanent magnet is installed chassis lower surface and corresponding position, vehicle body antero posterior axis center.
2. the pick-up unit of vertical inclination angle of bodywork according to claim 1, it is characterized in that: described counter is a Vehicle Controller.
3. adopt the detection method of the pick-up unit of the described vertical inclination angle of bodywork of claim 1, it is characterized in that: when the vehicle body run-off the straight, the damping spring of vehicle produces deformation, thereby cause that vehicle body moves up and down, cause change of magnetic field strength, at this moment Hall element is given counter according to different magnetic field intensity output varying voltage signal, thereby judges the damping spring deformational displacement, and then calculates car body obliqueness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251582A CN101709950A (en) | 2009-12-25 | 2009-12-25 | Device for detecting vertical inclination angle of bodywork and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910251582A CN101709950A (en) | 2009-12-25 | 2009-12-25 | Device for detecting vertical inclination angle of bodywork and method thereof |
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| Publication Number | Publication Date |
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| CN101709950A true CN101709950A (en) | 2010-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910251582A Pending CN101709950A (en) | 2009-12-25 | 2009-12-25 | Device for detecting vertical inclination angle of bodywork and method thereof |
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| CN (1) | CN101709950A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968352A (en) * | 2010-09-15 | 2011-02-09 | 奇瑞汽车股份有限公司 | Detection device and detection method of pitch angle of vehicle body |
| CN104359408A (en) * | 2014-11-25 | 2015-02-18 | 麦特汽车服务股份有限公司 | Automotive chassis data measurement method based on two-dimension dip angle self-compensation |
| CN114056382A (en) * | 2020-07-30 | 2022-02-18 | 比亚迪股份有限公司 | Rail vehicle, inclination angle determination method, device, system and medium thereof |
-
2009
- 2009-12-25 CN CN200910251582A patent/CN101709950A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968352A (en) * | 2010-09-15 | 2011-02-09 | 奇瑞汽车股份有限公司 | Detection device and detection method of pitch angle of vehicle body |
| CN101968352B (en) * | 2010-09-15 | 2012-08-22 | 奇瑞汽车股份有限公司 | Detection device and detection method of pitch angle of vehicle body |
| CN104359408A (en) * | 2014-11-25 | 2015-02-18 | 麦特汽车服务股份有限公司 | Automotive chassis data measurement method based on two-dimension dip angle self-compensation |
| CN104359408B (en) * | 2014-11-25 | 2017-03-22 | 麦特汽车服务股份有限公司 | Automotive chassis data measurement method based on two-dimension dip angle self-compensation |
| CN114056382A (en) * | 2020-07-30 | 2022-02-18 | 比亚迪股份有限公司 | Rail vehicle, inclination angle determination method, device, system and medium thereof |
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Application publication date: 20100519 |