CN109501648B - Side waist support self-adaptive adjusting system for automobile seat and working method thereof - Google Patents
Side waist support self-adaptive adjusting system for automobile seat and working method thereof Download PDFInfo
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- CN109501648B CN109501648B CN201811037186.2A CN201811037186A CN109501648B CN 109501648 B CN109501648 B CN 109501648B CN 201811037186 A CN201811037186 A CN 201811037186A CN 109501648 B CN109501648 B CN 109501648B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 8
- 238000012876 topography Methods 0.000 claims abstract 2
- 238000004891 communication Methods 0.000 claims description 7
- 230000006870 function Effects 0.000 claims description 7
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
- B60N2/665—Lumbar supports using inflatable bladders
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- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Abstract
The invention relates to the field of automobile parts, in particular to a side waist support self-adaptive adjusting system for an automobile seat and a working method thereof. Trigger button module, characterized by including the all topography of automobile body: the system comprises an ECU module, a vehicle-mounted map module, a CAN/LIN protocol module, a waist support receiving control module, a direct-current permanent magnet brush motor and a shape memory alloy air valve module, wherein the ECU module is divided into two paths and is respectively connected with the GPS module and the steering wheel angle sensor module, and the GPS module is sequentially connected with the vehicle-mounted map module, the CAN/LIN protocol module, the waist support receiving control module, the direct-current permanent magnet brush motor and; the steering wheel angle sensor module is sequentially connected with another CAN/LIN protocol module, another waist support receiving control module, another direct current permanent magnet brush motor and another shape memory alloy air valve module and finally fed back to the ECU module to process absolute angles. The invention reduces the Y-direction displacement of the H point so as to improve the driving safety and the controllability, realizes accurate positioning of the terrain by the GPS, and can be normally used in the environment of minus 40 ℃ to plus 80 ℃ as the angle sensor accurately judges the terrain.
Description
Technical Field
The invention relates to the field of automobile parts, in particular to a side waist support self-adaptive adjusting system for an automobile seat and a working method thereof.
Background
Currently, SUVs and sports cars are particularly popular in the market, the conventional function is to install pneumatic waist supports in the seat side wing areas to clamp drivers by means of simultaneous inflation of two air bags, but no side waist support with a terrain-adaptive inflation and deflation function exists at present.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, designs a side waist support self-adaptive adjusting system for an automobile seat and a working method thereof, and can independently control air bags on two sides of a backrest to inflate and deflate according to the road condition of a curve.
In order to realize the purpose, the self-adaptive adjusting system for the side waist support of the automobile seat comprises an automobile body all-terrain trigger key module and is characterized in that: the vehicle body all-terrain trigger key module activates an adaptive adjustment function and is integrated in the ECU module, the ECU module consists of a GPS signal module, a ROM program module, a compensation signal module, a learning capacity module, a self-adjustment module, a connection transmission protocol module, a feedback pulse module, a pulse angle data processing module and terrain feedback, the ECU module is divided into two paths and is respectively connected with the GPS module and a steering wheel angle sensor module, and the GPS module is sequentially connected with a vehicle-mounted map module, a CAN/LIN protocol module, a waist support receiving control module, a direct-current permanent magnet brush motor and a shape memory alloy air valve module and finally fed back to the ECU module to process terrain; the steering wheel angle sensor module is sequentially connected with another CAN/LIN protocol module, another waist support receiving control module, another direct current permanent magnet brush motor and another shape memory alloy air valve module and finally fed back to the ECU module to process absolute angles.
A working method of a side waist support self-adaptive adjusting system for an automobile seat comprises the following steps:
(1) s1, the ECU judges whether the GPS signal can be received, if yes, the step S2 is executed, and if not, the step S7 is executed;
(2) s2, tracking and positioning by using a GPS, and identifying whether a curve intersection exists according to a map, if so, executing a step S3, otherwise, not starting a self-adaptive road condition instruction;
(3) s3, calculating the total number of bend openings in the travel, and storing the bend opening information;
(4) s4, when the vehicle enters any one of the bends, judging whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(5) s5, starting communication with the side waist support through a CAN/LIN protocol, identifying whether the track is an outer track through a map track, if so, inflating an air bag at one side of the outer track, otherwise, not inflating the air bag at one side of the inner track;
(6) s6, judging whether the vehicle leaves the curve and enters the straight lane, if yes, the air bag at the outer side track side is deflated and the step S4 is returned;
(7) s7, using a steering wheel angle sensor to identify whether a curve intersection exists in front or not according to the sensor, if so, executing a step S8, otherwise, not needing to start a self-adaptive road condition instruction;
(8) s8, entering each curve intersection to judge whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(9) s9, starting communication with the side waist support through a CAN/LIN protocol, calculating whether an absolute angle exists through software, wherein the duration time of the absolute angle is more than or equal to 2 seconds, if so, inflating the air bag at one side with the angle, otherwise, inflating the air bag at the other side without the angle, and executing the step S10;
(10) and S10, judging whether the absolute angle still deviates, if so, the air bag on the non-angle side does not deflate, otherwise, the air bag on the non-angle side deflates and the step returns to the step S7.
The steering wheel angle sensor in the step S7 is composed of a steering wheel, a combination switch, a clock spring, a corner sensor and a steering column sheath, the combination switch and the steering column sheath are sequentially arranged below the steering wheel from top to bottom, and the corner sensor and the clock spring are sequentially embedded in the combination switch from outside to inside.
Compared with the prior art, the invention has the advantages of short inflation time, high deflation speed, large air bag stroke, low noise, low electric radiation and large coverage area, reduces the displacement of the Y-direction of the H point so as to improve the driving safety and controllability, realizes accurate positioning of the terrain by the GPS, accurately judges the terrain by the angle sensor, and can be normally used in the environment of minus 40 ℃ to plus 80 ℃.
Drawings
FIG. 1 is a flow chart of the operation of the present invention.
FIG. 2 is a linear relationship diagram of the simulation voltage and the magnetic steel angle.
Fig. 3 is a schematic structural view of the steering apparatus of the present invention.
Fig. 4 is a schematic structural view of the left and right waist supports of the backrest of the present invention.
FIG. 5 is a system block diagram of the present invention.
Referring to fig. 1 to 5, 1 is a steering wheel, 2 is a combination switch, 3 is a clock spring, 4 is a rotation angle sensor, 5 is a steering column sheath, 6 is a left side waist support, and 7 is a right side waist support.
Detailed Description
The invention is further illustrated below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a side waist support adaptive adjustment system for an automobile seat comprises an all-terrain vehicle body trigger button module, and is characterized in that: the vehicle body all-terrain trigger key module activates an adaptive adjustment function and is integrated in the ECU module, the ECU module consists of a GPS signal module, a ROM program module, a compensation signal module, a learning capacity module, a self-adjustment module, a connection transmission protocol module, a feedback pulse module, a pulse angle data processing module and terrain feedback, the ECU module is divided into two paths and is respectively connected with the GPS module and a steering wheel angle sensor module, and the GPS module is sequentially connected with a vehicle-mounted map module, a CAN/LIN protocol module, a waist support receiving control module, a direct-current permanent magnet brush motor and a shape memory alloy air valve module and finally fed back to the ECU module to process terrain; the steering wheel angle sensor module is sequentially connected with another CAN/LIN protocol module, another waist support receiving control module, another direct current permanent magnet brush motor and another shape memory alloy air valve module and finally fed back to the ECU module to process absolute angles.
A working method of a side waist support self-adaptive adjusting system for an automobile seat comprises the following steps:
(1) s1, the ECU judges whether the GPS signal can be received, if yes, the step S2 is executed, and if not, the step S7 is executed;
(2) s2, tracking and positioning by using a GPS, and identifying whether a curve intersection exists according to a map, if so, executing a step S3, otherwise, not starting a self-adaptive road condition instruction;
(3) s3, calculating the total number of bend openings in the travel, and storing the bend opening information;
(4) s4, when the vehicle enters any one of the bends, judging whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(5) s5, starting communication with the side waist support through a CAN/LIN protocol, identifying whether the track is an outer track through a map track, if so, inflating an air bag at one side of the outer track, otherwise, not inflating the air bag at one side of the inner track;
(6) s6, judging whether the vehicle leaves the curve and enters the straight lane, if yes, the air bag at the outer side track side is deflated and the step S4 is returned;
(7) s7, using a steering wheel angle sensor to identify whether a curve intersection exists in front or not according to the sensor, if so, executing a step S8, otherwise, not needing to start a self-adaptive road condition instruction;
(8) s8, entering each curve intersection to judge whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(9) s9, starting communication with the side waist support through a CAN/LIN protocol, calculating whether an absolute angle exists through software, wherein the duration time of the absolute angle is more than or equal to 2 seconds, if so, inflating the air bag at one side with an angle, inflating the air bag at the other side without the angle, and executing the step S10;
(10) and S10, judging whether the absolute angle still deviates, if so, the air bag on the non-angle side does not deflate, otherwise, the air bag on the non-angle side deflates and the step returns to the step S7.
The steering wheel angle sensor in the step S7 is composed of a steering wheel 1, a combination switch 2, a clock spring 3, a corner sensor 4 and a steering column sheath 5, the combination switch 2 and the steering column sheath 5 are sequentially arranged from top to bottom below the steering wheel 1, and the corner sensor 4 and the clock spring 3 are sequentially embedded in the combination switch 2 from outside to inside.
When the invention is used, the road condition of the curve is tracked, positioned and analyzed by the GPS and fed back to the ECU of the whole vehicle to judge in advance and send out an instruction, and the ECU instruction establishes communication with the pneumatic side waist support system through the LIN/CAN, so that the air bag is controlled to automatically inflate and deflate (the side waist support at the outer ring of the curve is inflated, and the air bag at the inner side is unchanged), and the function of preventing the human body from centrifuging is achieved. When the GPS signal in the mountainous area is weak, the ECU identifies the road condition through the steering wheel angle sensor and sends an instruction to the side waist support through the LIN/CAN, so that the air bag is controlled to automatically inflate and deflate (the side waist support on the outer ring of the bend is inflated, and the air bag on the inner side is unchanged), and the function of preventing the human body from being centrifuged is achieved.
The sensor is generally arranged on a steering column of a steering wheel, when the steering wheel rotates, a steering column gear rotates, a driven gear with magnetic steel is driven to rotate by the steering column gear, so that the direction of a magnetic field around the magnetic steel is changed, a chip with a Hall technology right above the magnetic steel can detect the change of the magnetic field parallel to the surface of the chip (the change of the magnetic field is induced to be in an absolute angle position with the rotation range of 0-360 degrees and is in a non-contact type rotation angle position), an analog voltage which is in linear relation with the angle of the magnetic steel is output as shown in figure 2, and after the analog voltage signal is subjected to A/D conversion by a microprocessor, an ECU calculates the absolute angle of the steering column gear through. The overall structure of the rotation angle sensor is shown in fig. 3.
Claims (3)
1. The utility model provides a side waist holds in palm self-adaptation governing system for car seat, includes that the automobile body triggers button module all topography, characterized by: the vehicle body all-terrain trigger key module activates an adaptive adjustment function and is integrated in the ECU module, the ECU module consists of a GPS signal module, a ROM program module, a compensation signal module, a learning capacity module, a self-adjustment module, a connection transmission protocol module, a feedback pulse module, a pulse angle data processing module and terrain feedback, the ECU module is divided into two paths and is respectively connected with the GPS module and a steering wheel angle sensor module, and the GPS module is sequentially connected with a vehicle-mounted map module, a CAN/LIN protocol module, a waist support receiving control module, a direct-current permanent magnet brush motor and a shape memory alloy air valve module and finally fed back to the ECU module to process terrain; the steering wheel angle sensor module is sequentially connected with another CAN/LIN protocol module, another waist support receiving control module, another direct current permanent magnet brush motor and another shape memory alloy air valve module and finally fed back to the ECU module to process absolute angles;
the ECU module judges whether the GPS module or the steering wheel angle sensor module works according to whether the GPS signal is received or not.
2. A method of operating the side lumbar support adaptive adjustment system for an automobile seat of claim 1, comprising the steps of:
(1) s1, the ECU judges whether the GPS signal can be received, if yes, the step S2 is executed, and if not, the step S7 is executed;
(2) s2, tracking and positioning by using a GPS, and identifying whether a curve intersection exists according to a map, if so, executing a step S3, otherwise, not starting a self-adaptive road condition instruction;
(3) s3, calculating the total number of bend openings in the travel, and storing the bend opening information;
(4) s4, when the vehicle enters any one of the bends, judging whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(5) s5, starting communication with the side waist support through a CAN/LIN protocol, identifying whether the track is an outer track through a map track, if so, inflating an air bag at one side of the outer track, otherwise, not inflating the air bag at one side of the inner track;
(6) s6, judging whether the vehicle leaves the curve and enters the straight lane, if yes, the air bag at the outer side track side is deflated and the step S4 is returned;
(7) s7, using a steering wheel angle sensor to identify whether a curve intersection exists in front or not according to the sensor, if so, executing a step S8, otherwise, not needing to start a self-adaptive road condition instruction;
(8) s8, entering each curve intersection to judge whether the vehicle speed exceeds 60km/h, if so, starting the self-adaptive road condition instruction of the side waist support, otherwise, not starting the self-adaptive road condition instruction;
(9) s9, starting communication with the side waist support through a CAN/LIN protocol, calculating whether an absolute angle exists through software, wherein the duration time of the absolute angle is more than or equal to 2 seconds, if so, inflating the air bag at one side with the angle, otherwise, inflating the air bag at the other side without the angle, and executing the step S10;
(10) and S10, judging whether the absolute angle still deviates, if so, the air bag on the non-angle side does not deflate, otherwise, the air bag on the non-angle side deflates and the step returns to the step S7.
3. The working method of the self-adaptive side waist support adjusting system for the automobile seat as claimed in claim 2 is characterized in that: the steering wheel angle sensor in the step S7 is composed of a steering wheel (1), a combination switch (2), a clock spring (3), a corner sensor (4) and a steering column sheath (5), the combination switch (2) and the steering column sheath (5) are sequentially arranged on the lower portion of the steering wheel (1) from top to bottom, and the corner sensor (4) and the clock spring (3) are sequentially embedded in the combination switch (2) from outside to inside.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037186.2A CN109501648B (en) | 2018-09-06 | 2018-09-06 | Side waist support self-adaptive adjusting system for automobile seat and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811037186.2A CN109501648B (en) | 2018-09-06 | 2018-09-06 | Side waist support self-adaptive adjusting system for automobile seat and working method thereof |
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| Publication Number | Publication Date |
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| CN109501648A CN109501648A (en) | 2019-03-22 |
| CN109501648B true CN109501648B (en) | 2021-04-06 |
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| CN201811037186.2A Active CN109501648B (en) | 2018-09-06 | 2018-09-06 | Side waist support self-adaptive adjusting system for automobile seat and working method thereof |
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| CN110949223B (en) * | 2019-12-30 | 2021-08-13 | 东风汽车有限公司 | Vehicle seat control method, storage medium, and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1526031A2 (en) * | 2003-10-21 | 2005-04-27 | TS Tech Co., Ltd | Vehicle seat with system for facilitating relieving of fatigue of person sitting on the seat |
| KR100578897B1 (en) * | 2004-06-24 | 2006-05-11 | 기아자동차주식회사 | Apparatus for preventing a body's inclining at a seat |
| JP2007038704A (en) * | 2005-07-29 | 2007-02-15 | Nissan Motor Co Ltd | Driving attitude adjustment device for vehicle and its method |
| CN101616818A (en) * | 2006-11-17 | 2009-12-30 | 丰田自动车株式会社 | Vehicle seat control system and method |
| CN101734180A (en) * | 2008-11-25 | 2010-06-16 | 全兴工业股份有限公司 | Auxiliary supporting system of vehicle seat airbags |
| CN205186069U (en) * | 2015-11-13 | 2016-04-27 | 比亚迪股份有限公司 | Supplementary braced system of gasbag and vehicle of car |
-
2018
- 2018-09-06 CN CN201811037186.2A patent/CN109501648B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1526031A2 (en) * | 2003-10-21 | 2005-04-27 | TS Tech Co., Ltd | Vehicle seat with system for facilitating relieving of fatigue of person sitting on the seat |
| KR100578897B1 (en) * | 2004-06-24 | 2006-05-11 | 기아자동차주식회사 | Apparatus for preventing a body's inclining at a seat |
| JP2007038704A (en) * | 2005-07-29 | 2007-02-15 | Nissan Motor Co Ltd | Driving attitude adjustment device for vehicle and its method |
| CN101616818A (en) * | 2006-11-17 | 2009-12-30 | 丰田自动车株式会社 | Vehicle seat control system and method |
| CN101734180A (en) * | 2008-11-25 | 2010-06-16 | 全兴工业股份有限公司 | Auxiliary supporting system of vehicle seat airbags |
| CN205186069U (en) * | 2015-11-13 | 2016-04-27 | 比亚迪股份有限公司 | Supplementary braced system of gasbag and vehicle of car |
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| CN109501648A (en) | 2019-03-22 |
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Address after: 713, building 66, Tianying Road, Qingpu District, Shanghai Patentee after: Jiewen Automotive Systems (Shanghai) Co.,Ltd. Country or region after: China Address before: 713, building 66, Tianying Road, Qingpu District, Shanghai Patentee before: ALFMEIER AUTOMOTIVE SYSTEMS (SHANGHAI) Co.,Ltd. Country or region before: China |