CN210653280U - Strain sensor steering wheel - Google Patents
Strain sensor steering wheel Download PDFInfo
- Publication number
- CN210653280U CN210653280U CN201921760518.XU CN201921760518U CN210653280U CN 210653280 U CN210653280 U CN 210653280U CN 201921760518 U CN201921760518 U CN 201921760518U CN 210653280 U CN210653280 U CN 210653280U
- Authority
- CN
- China
- Prior art keywords
- steering wheel
- layer
- signal processor
- strain gauge
- ring sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Steering Controls (AREA)
Abstract
The utility model discloses a strain sensor steering wheel, which belongs to the technical field of automobile accessories and comprises a steering wheel, a ring sleeve and a signal processor, wherein the ring sleeve is sleeved and fixed on the steering wheel, a detection area is arranged on the ring sleeve, the detection area comprises a detection touch pad and a bottom fixing layer, and the ring sleeve is fixed with the steering wheel through the bottom fixing layer; the detection touch pad comprises a protective layer, an induction layer and a shielding layer, wherein the shielding layer is arranged on the matching side of the induction layer and the steering wheel, the side is the inner side, the protective layer is arranged on the outer side of the induction layer, the induction layer is provided with a strain sensor, and the strain sensor is connected with a signal processor through a data transmission line; the data transmission line is fixed on the steering wheel through a bottom fixing layer; the signal processor is connected with a vehicle brake control device. The utility model discloses can judge driving state according to the atress condition of steering wheel, the cooperation uses vehicle intelligence control system to guarantee navigating mate's safety, avoid the emergence of accident.
Description
Technical Field
The utility model belongs to the technical field of auto-parts technique and specifically relates to a strain gauge sensor steering wheel.
Background
With the rapid increase of the number of automobiles in cities in China, the frequent occurrence of traffic accidents causes strong attention and importance to traffic safety in the whole society. According to the statistical analysis of the causes of traffic accidents at home and abroad, the main reason for causing the traffic accidents is that the driver himself has incorrect driving behaviors, such as hurrying a steering wheel, frequently rubbing eyes, using a mobile phone, driving fatigue and the like, and the proportion of the accidents caused by the vehicle or the surrounding environment is small.
In order to prevent frequent traffic accidents, the automobile safety system is gradually upgraded and gradually intelligentized, and equipment such as an intelligent collision avoidance system, an intelligent driving system, an intelligent tire and the like play an important role on the automobile. However, the driver does not realize the dangerous driving behavior of the driver, and still has the dangerous driving behaviors of holding the steering wheel with one hand and pressing the steering wheel with one finger when rubbing eyes, drinking water or answering a call in the driving process, so that the attention of the driver is dispersed, or the direction cannot be controlled by one hand due to too high speed of the vehicle, and the direction deviation is caused to cause traffic accidents such as rear-end collision of the vehicle.
Disclosure of Invention
The technical task of the utility model is to above weak point, provide a strain sensor steering wheel, can judge driving state according to the atress condition of steering wheel to guarantee navigating mate's safety, avoid the emergence of accident.
The utility model provides a technical scheme that its technical problem adopted is:
a strain sensor steering wheel comprises a steering wheel, a ring sleeve and a signal processor, wherein the ring sleeve is sleeved, wrapped and fixed on the steering wheel, a detection area is arranged on the ring sleeve, the detection area is positioned in a hand-held area of the steering wheel in a standard driving posture, the detection area comprises a detection touch pad and a bottom fixing layer, and the ring sleeve is fixed with the steering wheel through the bottom fixing layer;
the detection touch pad comprises a protective layer, an induction layer and a shielding layer, wherein the shielding layer is arranged on the matching side of the induction layer and the steering wheel, the side is the inner side, the protective layer is arranged on the outer side of the induction layer, the induction layer is provided with a strain sensor, and the strain sensor is connected with a signal processor through a data transmission line;
the protective layer is used for preventing the induction layer from being damaged and corroded, ensuring the structural integrity of the induction layer and improving the durability; the lower layer, namely the inner side, of the induction layer is provided with a shielding layer for shielding interference signals, the shielding layer can prevent the metal keel on the steering wheel from influencing the sensor, the metal keel can be made of a metal shielding material, electromagnetic interference generated by the metal keel is sealed, and the metal keel is prevented from generating electromagnetic waves to influence the induction layer;
the data transmission line is fixed on the steering wheel through a bottom fixing layer;
the signal processor is connected with a vehicle brake control device.
When the strain sensor is subjected to external action pressure, mechanical deformation is generated to generate numerical value change, the signal processor receives an effective signal output by the pressure action on an induction area of a ring sleeve fixed on a steering wheel, whether the stress of the induction area reaches a stress value is judged and recognized through logical operation, so that the area and the posture of a driver holding the steering wheel are recognized, the detection area is located in the holding area of the steering wheel in a standard driving posture, and when the pressure of the area is detected, the system judges that the steering wheel is in a correct driving state; when the detected pressure value does not accord with the set condition, the driver is judged to be in dangerous driving, the judgment result is fed back to the intelligent speed reduction system of the vehicle to effectively reduce the speed of the vehicle, or the alarm system reminds the driver.
Preferably, the detection regions are located on the left and right sides of the front surface of the steering wheel and the left and right sides of the back surface of the steering wheel. The setting of the area can be used for judging that two hands press the steering wheel, one hand presses the steering wheel, two hands hold the steering wheel and one hand holds the steering wheel in a ring mode, and two hands leave the steering wheel operation area.
For the four regions, when three or more region pressures are detected, the system judges that the steering wheel is held by both hands in a ring mode, and judges that the steering wheel is pressed by both hands when the pressures of two different side regions are detected, and the steering wheel is in a correct driving state; if a single area or other signal modes are detected, the driver is judged to be a dangerous driving behavior, the result is fed back to the intelligent speed reduction system to automatically reduce the speed of the automobile, and the speed of the automobile is uniformly reduced to a safe and reasonable range, so that the safety of the driver is guaranteed, and accidents are avoided.
Preferably, the loop is an integral steering wheel loop, the loop is sleeved on the steering wheel, and the detection areas of the loop are fixed on the left side and the right side of the front face of the steering wheel and the left side and the right side of the back face of the steering wheel. The integral ring sleeve is matched with the steering wheel, the detection area of the integral ring sleeve is positioned at the correct position of the steering wheel after the integral ring sleeve is sleeved on the steering wheel, and a matching fixing piece is arranged to be matched and fixed with the steering wheel when necessary. The integral steering wheel sleeve is convenient to install and use and convenient to integrally replace.
Preferably, the ring sleeves are separate steering wheel sleeves, and the ring sleeves are respectively fixed on the left side and the right side of the front surface of the steering wheel and the left side and the right side of the back surface of the steering wheel. When the separated ring sleeves are installed, the separated ring sleeves are respectively installed in the designated areas of the steering wheel, so that the positions of the detection areas are more accurate, the separated ring sleeves are not easy to move, and the separated ring sleeves can be replaced in a separated mode.
Preferably, the bottom fixing layer is provided with a wire clamping groove, and the data transmission line is fixed on the bottom fixing layer through the wire clamping groove. The data transmission line is fixed along the wire clamping groove of the bottom fixing layer and then connected with a signal processing system in the center of the steering wheel.
Preferably, the strain gauge sensor is a resistance strain gauge sensor. The resistance strain type sensor is composed of a resistance strain gauge as a conversion element, an elastic sensitive element, the resistance strain gauge and a compensation resistor, and can be designed into various structural forms according to specific measurement requirements. The elastic sensing element is deformed by the measured force and deforms the resistive strain gauges attached thereto together. The resistance strain gauge converts the deformation into the change of resistance value, thereby measuring various physical quantities such as force, pressure, torque, displacement and the like.
Preferably, the resistance strain type sensor is a foil type resistance strain gauge. The foil type resistance strain gauge is subjected to mechanical deformation caused by external acting pressure, the resistance value of the foil type resistance strain gauge changes correspondingly, namely effective signals of a corresponding sensing area of the steering wheel are detected simultaneously, and therefore the area and the posture of a driver holding the steering wheel are recognized.
Preferably, the detection region is semicircular. The semicircular detection area is fixedly attached to the steering wheel, so that fixation is firm, and movement is prevented.
Preferably, the signal processor is arranged in the steering wheel control area and connected with the vehicle brake control chip. The steering wheel control area can be provided with an operation area, the control circuit switch is operated through keys of the operation area, and the keys of the operation area are connected with a vehicle brake chip and other control circuits or chips through the control area.
Preferably, the steering wheel control area further comprises a sound control switch, an air conditioning adjusting switch, a vehicle-mounted telephone control switch and the like, the signal processor is further connected with an integrated control chip, the sound control switch, the air conditioning adjusting switch, the vehicle-mounted telephone control switch and the like are respectively connected with the signal processor, and the integrated control chip is used for controlling the on-off of corresponding devices. The sound control switch, the air conditioner regulating switch, the vehicle-mounted telephone control switch and the like are controlled through the operation of the control area, and the intelligent control of the vehicle is realized together with the strain sensor.
The utility model discloses a strain sensor steering wheel compares with prior art, has following beneficial effect:
the strain sensor steering wheel has high sensitivity and stability, is acted by pressure, and has high response speed;
the induction system is divided into a plurality of sensors to detect the touch control area, so that the area and the posture of a hand-held steering wheel can be accurately distinguished, and the accuracy is high;
the effective signal output by the pressure action in the touch area is detected through the sensor, whether the driver is in a correct driving state or not is judged in real time, the result is fed back to the intelligent speed reduction system, the speed of the vehicle is uniformly reduced to a safe and reasonable range, and therefore safety of drivers is guaranteed, and accidents are avoided.
Drawings
Fig. 1 is a schematic structural view of a strain gauge sensor steering wheel according to the present invention;
fig. 2 is a schematic block diagram of a strain gauge sensor steering wheel.
In the figure, 1, a steering wheel, 2, a ring sleeve, 3, a protective layer, 4, a sensing layer, 5, a shielding layer, 6 and a bottom fixing layer. A. Front left side, B, front right side, C, back both sides.
Detailed Description
The invention will be further explained with reference to the drawings and the specific embodiments.
Example one
The utility model provides a strain sensor steering wheel, includes steering wheel 1, ring cover 2 and signal processor, 2 suit parcels of ring cover are fixed on steering wheel 1, are equipped with detection area on ring cover 2, detection area is located the left and right both sides at the positive left side of steering wheel and right side and the steering wheel back. The setting of the area can be used for judging that two hands press the steering wheel 1, one hand presses the steering wheel 1, two hands hold the steering wheel 1 and one hand holds the steering wheel 1 in a ring mode, and two hands leave the operation area of the steering wheel 1, and the area and the gesture of the driver holding the steering wheel 1 can be accurately identified through the judgment of the areas.
The detection area comprises a detection touch pad and a bottom fixing layer 6, and the ring sleeve is fixed with the steering wheel 1 through the bottom fixing layer 6. The detection touch pad comprises a protective layer 3, an induction layer 4 and a shielding layer 5, wherein the shielding layer 5 is arranged at the matching side, namely the inner side, of the induction layer 4 and the steering wheel 1 and is used for shielding interference signals, and the shielding layer can avoid the influence of a metal keel on the steering wheel on a sensor; the protective layer is arranged on the outer side of the induction layer and is used for preventing the induction layer from being damaged and corroded, ensuring the structural integrity of the induction layer and improving the durability; foil formula resistance foil gage is inlayed on response layer, and when the staff touched steering wheel 1, ambient pressure can make foil formula resistance foil gage produce mechanical deformation, and the resistance will change to produce corresponding output signal, strain gauge sensor passes through data transmission line and connects signal processor.
When the foil type resistance strain gauge is pressed by the external force, mechanical deformation is generated, the resistance value of the foil type resistance strain gauge changes correspondingly, namely, when effective signals of sensing areas on the left side A and the right side B of the front of the steering wheel and the two sides C of the back of the steering wheel are detected simultaneously, the area and the posture of a driver holding the steering wheel can be identified, when the foil type resistance strain gauge is detected to be pressed by two hands or three areas or more, the system judges that the steering wheel is pressed by two hands or the steering wheel is held by two hands, and the steering wheel is in a correct driving state; if a single area or other signal modes are detected, the driver is judged to be a dangerous driving behavior, the result is fed back to the intelligent speed reduction system to automatically reduce the speed of the automobile, and the speed of the automobile is uniformly reduced to a safe and reasonable range, so that the safety of the driver is guaranteed, and accidents are avoided.
The ring sleeve 2 is an integral steering wheel sleeve, and after the ring sleeve 2 is sleeved on the steering wheel 1, the detection areas of the ring sleeve 2 are fixed on the left side and the right side of the front surface of the steering wheel 1 and the left side and the right side of the back surface of the steering wheel 1. The integral ring sleeve should be matched with the steering wheel 1, the detection area of the integral ring sleeve is positioned at the correct position of the steering wheel 1 after the integral ring sleeve is sleeved on the steering wheel 1, and a matching fixing piece is arranged to be matched and fixed with the steering wheel 1 if necessary. The integral steering wheel sleeve is convenient to install and use and convenient to integrally replace.
The detection area is semicircular, and the semicircular detection area is attached to the steering wheel and is fixed, so that fixation is facilitated, and movement is prevented.
The data transmission line is fixed to the steering wheel 1 by a bottom fixing layer 6. The bottom fixing layer 6 is provided with a wire clamping groove, and the data transmission line is fixed on the bottom fixing layer 6 through the wire clamping groove. The data transmission line is fixed along the wire clamping groove of the bottom fixing layer 6 and then connected with a signal processing system in the center of the steering wheel 1.
The signal processor is connected with the vehicle brake control device. The signal processor is arranged in the steering wheel control area and connected with the vehicle brake control chip. The steering wheel control area can be provided with an operation area, the control circuit switch is operated through keys of the operation area, and the keys of the operation area are connected with a vehicle brake chip and other control circuits or chips through the control area.
When the foil type resistance strain gauge is stressed by external action, mechanical deformation is generated, so that numerical value change is generated, the signal processor receives an effective signal output by the action of pressure in a sensing area of a ring sleeve 2 fixed on a steering wheel 1, whether the stress of the sensing area reaches a stress value is judged and identified through logical operation, so that the area and the posture of a driver holding the steering wheel are identified, whether the driver is in a one-hand operation driving state is judged, the judgment result is fed back to an intelligent speed reduction system of the vehicle to automatically reduce the speed of the vehicle, the speed of the vehicle is reduced to a safe and reasonable range at a constant speed, or an alarm system reminds the driver at the same time, the safety of the driver is guaranteed, and accidents are avoided.
Example two
For the steering wheel 1 with the structure of the first embodiment, the steering wheel control area further comprises a sound control switch, an air conditioning adjustment switch, a vehicle-mounted telephone control switch and the like, the signal processor is further connected with an integrated control chip, the sound control switch, the air conditioning adjustment switch, the vehicle-mounted telephone control switch and the like are respectively connected with the signal processor, and the integrated control chip is used for controlling the on-off of corresponding devices.
The sound control switch, the air conditioner regulating switch, the vehicle-mounted telephone control switch and the like are controlled through the operation of the control area, and the intelligent control of the vehicle is realized together with the strain sensor.
EXAMPLE III
The utility model provides a strain sensor steering wheel, includes steering wheel 1, ring cover 2 and signal processor, 2 suit parcels of ring cover are fixed on steering wheel 1, are equipped with detection area on ring cover 2, detection area is located the left and right both sides at the positive left side of steering wheel and right side and the steering wheel back.
This embodiment is different from the first embodiment in that the loop covers 2 are separate steering wheel covers, and the loop covers 2 are fixed to the left and right sides of the front surface of the steering wheel 1 and the left and right sides of the back surface of the steering wheel 1, respectively. When the separated ring sleeve is installed, the separated ring sleeve is respectively installed in the designated area of the steering wheel 1, so that the position of a detection area is more accurate, the separated ring sleeve is not easy to move, and the separated ring sleeve can be replaced in a separated mode.
Through the above detailed description, the person skilled in the art can easily realize the present invention. It should be understood, however, that the intention is not to limit the invention to the particular embodiments described. On the basis of the disclosed embodiments, a person skilled in the art can combine different technical features at will, thereby implementing different technical solutions.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
Claims (10)
1. A strain sensor steering wheel is characterized by comprising a steering wheel, a ring sleeve and a signal processor, wherein the ring sleeve is sleeved and fixed on the steering wheel, a detection area is arranged on the ring sleeve, the detection area comprises a detection touch pad and a bottom fixing layer, and the ring sleeve is fixed with the steering wheel through the bottom fixing layer;
the detection touch pad comprises a protective layer, an induction layer and a shielding layer, wherein the shielding layer is arranged on the matching side of the induction layer and the steering wheel, the side is the inner side, the protective layer is arranged on the outer side of the induction layer, the induction layer is provided with a strain sensor, and the strain sensor is connected with a signal processor through a data transmission line;
the data transmission line is fixed on the steering wheel through a bottom fixing layer;
the signal processor is connected with a vehicle brake control device.
2. The strain sensor steering wheel according to claim 1, wherein the sensing areas are located on the left and right sides of the front surface of the steering wheel and on the left and right sides of the rear surface of the steering wheel.
3. The strain sensor steering wheel according to claim 2, wherein the ring is an integral steering wheel cover, and the ring is fitted to the rear of the steering wheel with the sensing area fixed to the left and right sides of the front of the steering wheel and the left and right sides of the rear of the steering wheel.
4. The strain gauge sensor steering wheel of claim 2, wherein the loops are separate steering wheel loops secured to the left and right sides of the front face of the steering wheel and the left and right sides of the back face of the steering wheel, respectively.
5. The strain sensor steering wheel according to claim 1, wherein the bottom fixing layer is provided with a wire clamping groove, and the data transmission line is fixed on the bottom fixing layer through the wire clamping groove.
6. A strain gauge steering wheel according to claim 1, wherein the strain gauge is a resistive strain gauge.
7. A strain gauge steering wheel according to claim 6, wherein the resistive strain gauge is a foil resistive strain gauge.
8. A strain gauge sensor steering wheel according to claim 1, 2 or 7, wherein the sensing area is semi-circular.
9. The strain gauge sensor steering wheel of claim 1, wherein the signal processor is disposed in the steering wheel control area and connected to the vehicle brake control chip.
10. The strain sensor steering wheel according to claim 9, wherein the steering wheel control area further comprises an audio control switch, an air conditioning control switch and a car telephone control switch, the signal processor is further connected with an integrated control chip, and the audio control switch, the air conditioning control switch and the car telephone control switch are respectively connected with the signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760518.XU CN210653280U (en) | 2019-10-17 | 2019-10-17 | Strain sensor steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921760518.XU CN210653280U (en) | 2019-10-17 | 2019-10-17 | Strain sensor steering wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210653280U true CN210653280U (en) | 2020-06-02 |
Family
ID=70837899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921760518.XU Active CN210653280U (en) | 2019-10-17 | 2019-10-17 | Strain sensor steering wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210653280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435458A (en) * | 2022-01-27 | 2022-05-06 | 廊坊市金色时光科技发展有限公司 | Sensor pad and manufacturing method thereof |
| CN114468494A (en) * | 2022-02-27 | 2022-05-13 | 重庆长安汽车股份有限公司 | Automobile-used intelligent wrist-watch and mounting structure thereof |
-
2019
- 2019-10-17 CN CN201921760518.XU patent/CN210653280U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435458A (en) * | 2022-01-27 | 2022-05-06 | 廊坊市金色时光科技发展有限公司 | Sensor pad and manufacturing method thereof |
| CN114468494A (en) * | 2022-02-27 | 2022-05-13 | 重庆长安汽车股份有限公司 | Automobile-used intelligent wrist-watch and mounting structure thereof |
| CN114468494B (en) * | 2022-02-27 | 2023-06-06 | 重庆长安汽车股份有限公司 | Automobile-used intelligent wrist-watch and mounting structure thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210653280U (en) | Strain sensor steering wheel | |
| US9457709B2 (en) | Bicycle helmet with an adaptive light notification system that varies brightness | |
| US6768962B2 (en) | Method for sensing the readiness of a driver to steer | |
| KR102194784B1 (en) | Resistance Strain Gage, Sensitivity Module, Force Sensor and Scooter | |
| US6718647B2 (en) | Force sensing probe | |
| GB2603320A (en) | System including grip assembly and hip sensing assembly for rollator configured to provide feedback to user | |
| US20190299924A1 (en) | Occupancy Sensing for a Child Transportation System | |
| CN209321043U (en) | Capacitance touching control multizone detection direction disk and automobile | |
| US20040055805A1 (en) | Impact sensor | |
| CN107560765A (en) | A kind of robot skin sense of touch detecting system and method | |
| CN202987116U (en) | Non-contact control device for preventing accelerator from being accidently stepped on | |
| CN214493188U (en) | Vehicle handle with measurable contact area | |
| CN116438506A (en) | Signalling device for generating an optical signal during the travel of a vehicle | |
| CN112141248A (en) | Vehicle handle with measurable contact area | |
| CN210707142U (en) | Hand-off induction detecting device for steering wheel | |
| CN203637683U (en) | Bus door anti-pinch device | |
| CN214776372U (en) | Control device for safe driving of electric vehicle | |
| CN2638052Y (en) | Sensor used for measuring hardness of covering material surface | |
| CN211076153U (en) | Seat cushion and vehicle with same | |
| CN102721499B (en) | Device for detecting startup friction torque with restraints on speed influence, and circuit system thereof | |
| KR20000020113A (en) | Alarm device and method of drowsy driving | |
| JP2007062452A (en) | Pedestrian collision detection device | |
| JPS60187837A (en) | Air pressure detection system of tire | |
| CN214776373U (en) | Intelligent vehicle throttle handle | |
| Imamura et al. | Estimation for grasp behavior of vehicle driver by using steering wheel sensor system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |