JP5246076B2 - シート荷重判定装置 - Google Patents
シート荷重判定装置 Download PDFInfo
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- JP5246076B2 JP5246076B2 JP2009161867A JP2009161867A JP5246076B2 JP 5246076 B2 JP5246076 B2 JP 5246076B2 JP 2009161867 A JP2009161867 A JP 2009161867A JP 2009161867 A JP2009161867 A JP 2009161867A JP 5246076 B2 JP5246076 B2 JP 5246076B2
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- 238000001514 detection method Methods 0.000 claims description 57
- 230000001133 acceleration Effects 0.000 claims description 29
- 230000002123 temporal effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/40—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight
- G01G19/413—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means
- G01G19/414—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only
- G01G19/4142—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups with provisions for indicating, recording, or computing price or other quantities dependent on the weight using electromechanical or electronic computing means using electronic computing means only for controlling activation of safety devices, e.g. airbag systems
-
- 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
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/0024—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat
- B60N2/0025—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement for identifying, categorising or investigation of the occupant or object on the seat by using weight measurement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
- B60R21/01516—Passenger detection systems using force or pressure sensing means
- B60R21/0152—Passenger detection systems using force or pressure sensing means using strain gauges
-
- 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
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/003—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat
- B60N2/0031—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor mounting location in or on the seat mounted on the frame
-
- 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
- B60N2/002—Seats provided with an occupancy detection means mounted therein or thereon
- B60N2/0021—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement
- B60N2/0035—Seats provided with an occupancy detection means mounted therein or thereon characterised by the type of sensor or measurement characterised by the sensor data transmission, e.g. wired connections or wireless transmitters therefor; characterised by the sensor data processing, e.g. seat sensor signal amplification or electric circuits for providing seat sensor information
-
- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/266—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof
- B60N2/267—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof alerting means responsive to presence or absence of children
-
- 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
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
- B60N2/266—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof
- B60N2/271—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children with detection or alerting means responsive to presence or absence of children; with detection or alerting means responsive to improper locking or installation of the child seats or parts thereof detecting or alerting means responsive to securing the child in the seat
- B60N2/272—Buckle lock sensors for child seat safety belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2210/00—Sensor types, e.g. for passenger detection systems or for controlling seats
- B60N2210/40—Force or pressure sensors
- B60N2210/42—Strain gauges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2230/00—Communication or electronic aspects
- B60N2230/30—Signal processing of sensor data
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
- Air Bags (AREA)
Description
1L:後方左荷重センサ EL:電気出力
1R:後方右荷重センサ ER:電気出力
2:バックルスイッチ BSW:バックル情報
3、30:荷重判定ECU 31:電源供給部
4:荷重検知部
5:発進推測手段(発進検知センサ)
6、60:判定部
7:エアバッグ制御手段
8:車速・加速度演算部(発進検知センサおよび加速度検知装置)
9:助手席のシート 94〜97:支持部
WA:検知荷重値
W1:発進時大人判定値(第1判定値)
W2:発進時幼児判定値(第2判定値)
W3:停車時大人判定値(第3判定値)
W4:停車時幼児判定値(第4判定値)
Claims (6)
- 車両のシートを支持する複数の支持部のうち後方の支持部に設けられて該支持部に作用する荷重を検出する荷重センサと、
前記荷重センサの出力に基づいて前記シートに載っている荷重体の荷重の一部を検知して検知荷重値を出力する荷重検知部と、
前記車両の発進を検知する発進検知センサと、
前記発進検知センサが前記車両の発進を検知してから所定期間内に、前記荷重検知部が検知した前記検知荷重値が第1判定値より大きいとき前記荷重体が前記シートに着座した大人であると判定し、前記検知荷重値が前記第1判定値より小なる第2判定値より大きく前記第1判定値より小さいとき前記荷重体が前記シートに固縛されたチャイルドシートに保持された幼児であると判定する判定部と、
を備えることを特徴とするシート荷重判定装置。 - 請求項1において、前記荷重センサは、前記複数の支持部のうち車幅方向に離間して後方に配置された2つの支持部にそれぞれ設けられ、
前記荷重検知部は、2つの前記荷重センサの前記出力を加算して前記シートに載っている荷重体の荷重の一部を検知することを特徴とするシート荷重判定装置。 - 請求項1または2において、前記発進検知センサが前記車両の停止を検知しているとき、前記判定部は、前記荷重検知部が検知した検知荷重値が前記第1判定値より小なる第3判定値より大きいとき前記荷重体が前記シートに着座した大人であると判定し、前記検知荷重値が前記第3判定値より小なる第4判定値より大きく前記第3判定値より小さいとき前記荷重体が前記シートに固縛されたチャイルドシートに保持された幼児であると判定することを特徴とするシート荷重判定装置。
- 請求項1〜3のいずれか一項において、前記発進検知センサは、前記検知荷重値の時間的増加率を基にして前記車両の発進を推測する発進推測手段からなることを特徴とするシート荷重判定装置。
- 請求項1〜4のいずれか一項において、前記車両の発進時の加速度を検知する加速度検知装置を備え、
前記判定部は、前記加速度検知装置によって検知された加速度が大きくなると前記第1および第2判定値を大きくすることを特徴とするシート荷重判定装置。 - 請求項1〜5のいずれか一項において、前記シートは助手席であり、
前記助手席に載っている荷重体が前記大人であると前記判定部で判定されると前記助手席の前方に配設されたエアバッグの事故時展開を許容し、前記荷重体が前記チャイルドシートに保持された幼児であると前記判定部で判定されると前記エアバッグの事故時展開を禁止するエアバッグ制御手段を備えることを特徴とするシート荷重判定装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009161867A JP5246076B2 (ja) | 2009-07-08 | 2009-07-08 | シート荷重判定装置 |
US12/813,583 US8594893B2 (en) | 2009-07-08 | 2010-06-11 | Seat load determining apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009161867A JP5246076B2 (ja) | 2009-07-08 | 2009-07-08 | シート荷重判定装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011016423A JP2011016423A (ja) | 2011-01-27 |
JP5246076B2 true JP5246076B2 (ja) | 2013-07-24 |
Family
ID=43428125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009161867A Active JP5246076B2 (ja) | 2009-07-08 | 2009-07-08 | シート荷重判定装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US8594893B2 (ja) |
JP (1) | JP5246076B2 (ja) |
Families Citing this family (21)
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JP5531472B2 (ja) * | 2009-07-07 | 2014-06-25 | アイシン精機株式会社 | 着座判定装置および着座判定方法 |
JP5531471B2 (ja) * | 2009-07-07 | 2014-06-25 | アイシン精機株式会社 | 着座判定装置および着座判定方法 |
JP5387184B2 (ja) * | 2009-07-08 | 2014-01-15 | アイシン精機株式会社 | シート荷重検知装置 |
JP5446592B2 (ja) * | 2009-08-24 | 2014-03-19 | アイシン精機株式会社 | 車両衝撃判定装置、車両衝撃判定方法および車両衝撃報知装置 |
JP5593993B2 (ja) * | 2009-10-22 | 2014-09-24 | アイシン精機株式会社 | シート乗員判定装置 |
JP2011105298A (ja) | 2009-10-22 | 2011-06-02 | Aisin Seiki Co Ltd | 着座判定装置および着座判定方法 |
JP5765069B2 (ja) * | 2011-06-13 | 2015-08-19 | アイシン精機株式会社 | シート荷重判定装置 |
JP5884546B2 (ja) * | 2012-02-22 | 2016-03-15 | アイシン精機株式会社 | シート乗員判定装置 |
JP6102340B2 (ja) * | 2013-02-27 | 2017-03-29 | アイシン精機株式会社 | ベルトウォーニング装置 |
JP5764602B2 (ja) * | 2013-03-28 | 2015-08-19 | 本田技研工業株式会社 | 乗員判定装置 |
US9807196B2 (en) | 2013-09-17 | 2017-10-31 | Toyota Motor Sales, U.S.A. | Automated social network interaction system for a vehicle |
US9902266B2 (en) | 2013-09-17 | 2018-02-27 | Toyota Motor Engineering & Manufacturing North America, Inc. | Interactive vehicle window display system with personal convenience reminders |
US20150081133A1 (en) * | 2013-09-17 | 2015-03-19 | Toyota Motor Sales, U.S.A., Inc. | Gesture-based system enabling children to control some vehicle functions in a vehicle |
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US9400564B2 (en) | 2013-09-17 | 2016-07-26 | Toyota Motor Engineering & Manufacturing North America, Inc. | Interactive vehicle window display system with a safe driving reminder system |
JP6287155B2 (ja) * | 2013-12-13 | 2018-03-07 | アイシン精機株式会社 | シート乗員判定装置 |
JP5858976B2 (ja) * | 2013-12-19 | 2016-02-10 | 本田技研工業株式会社 | 乗員判定装置および乗員判定方法 |
US20150310451A1 (en) * | 2014-04-29 | 2015-10-29 | Ford Global Technologies, Llc | Vehicle driver tracking and reporting |
JP6447998B2 (ja) * | 2015-09-25 | 2019-01-09 | 株式会社デンソー | 車両用乗員判定装置 |
JP6724731B2 (ja) * | 2016-11-07 | 2020-07-15 | アイシン精機株式会社 | 乗員検知方法及び乗員検知装置 |
US10053088B1 (en) * | 2017-02-21 | 2018-08-21 | Zoox, Inc. | Occupant aware braking system |
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JP5515460B2 (ja) | 2009-07-07 | 2014-06-11 | アイシン精機株式会社 | 着座判定装置および着座判定方法 |
JP5531471B2 (ja) | 2009-07-07 | 2014-06-25 | アイシン精機株式会社 | 着座判定装置および着座判定方法 |
JP5531472B2 (ja) | 2009-07-07 | 2014-06-25 | アイシン精機株式会社 | 着座判定装置および着座判定方法 |
JP5471094B2 (ja) | 2009-07-08 | 2014-04-16 | アイシン精機株式会社 | 車両傾斜検出装置およびこれを用いたシート荷重検知装置 |
JP5387184B2 (ja) | 2009-07-08 | 2014-01-15 | アイシン精機株式会社 | シート荷重検知装置 |
-
2009
- 2009-07-08 JP JP2009161867A patent/JP5246076B2/ja active Active
-
2010
- 2010-06-11 US US12/813,583 patent/US8594893B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2011016423A (ja) | 2011-01-27 |
US8594893B2 (en) | 2013-11-26 |
US20110010056A1 (en) | 2011-01-13 |
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