Aisin Seiki Kabushiki Kaisha

Toyota Jidosha Kabushiki Kaisha

Aisin Corporation

Hiroyuki Fujii

Muneto Inayoshi

Takahiro Izuno

Isao Honda

Kan Ichihara

Akira Enomoto

Yoshiaki Tomatsu

Koji Ito

Yoshimasa Asano

Yusuke Takahashi

Takeshi Kuwabara

Naoka Kawajiri

Hideki Kawabata

Mutsuro Aoyama

Kazumasa Seo

Shin Osuga

Ryota Nakanishi

Koji Washino

Yoshinori Shibata

Keisuke Uchida

Minoru Izawa

Kenji Maeta

Kenichiro Akizuki

Godai Tanaka

Hajime Shiohara

Shintaro Nakaya

Akito Ito

Koji Itoh

Masahiro Takeuchi

A tiptoe position estimating device includes: a camera configured to capture an image of an interior of a vehicle; and a human body information acquisition unit configured to acquire, from a captured image obtained by capturing an image of a person seated on a seat in the interior by the camera, position information of skeleton points at a plurality of positions of a body of the person. The human body information acquisition unit is configured to acquire thigh information which is position information of a skeleton point of a thigh of the person, and lower leg information which is position information of a skeleton point of a lower leg of the person. The human body information acquisition unit includes a tiptoe position estimating part configured to estimate a tiptoe position of a foot of the person based on the acquired thigh information and the acquired lower leg information.

Tiptoe position estimating device and fingertip position estimating device

An indoor monitoring device includes: an image obtainment unit obtaining a captured image obtained by imaging an inside of a cabin of a vehicle by an imaging unit; and a position detection unit determining whether or not an occupant's head is present in the captured image, detecting a size of the head, a head position of the head, and a key point position of a key point other than the head of the occupant in the captured image in a case where the head is present in the captured image, and detecting a seating position of the occupant in the cabin based on the size of the head, the head position, and the key point position.

Indoor monitoring device

A passenger detection device includes: an input unit that receives a captured image of an interior space of a vehicle imaged by an imaging device and a load measured by a load sensor provided on a seat provided in the interior space of the vehicle; a determination unit that determines that a passenger is seated on the seat, in a case where the load is equal to or more than a predetermined threshold value; a detection unit that obtains a face determination degree indicating a certainty of a face of the passenger in the captured image from the captured image; and a threshold value changing unit that changes the threshold value according to the face determination degree.

Passenger detection device and passenger detection program

A passenger information detection device includes: an acquisition unit that acquires an image imaged by an imaging device that is provided in an interior space of a vehicle to image a passenger seated on a seat and a detection value of a load sensor provided on the seat; a first calculation unit that calculates first information that is information on a face of the passenger from the image; and a second calculation unit that calculates second information that is information on a body size of the passenger based on the first information and the detection value.

Passenger information detection device and program

A load sensor disposed between a first member and a second member to detect a load applied to the first member in an up-down direction, the load sensor includes a strain body including a strain gauge, a first fixation member fixing the strain body and the first member to each other, a second fixation member fixing the strain body and the second member to each other, and a restriction portion restricting a displacement of the strain body in a state where the first member is displaced upward by a predetermined distance relative to the second member based on the upward load applied to the first member.

Load sensor

A seating detection method includes: detecting whether a seat belt sensor in a vehicle seat is in an ON state or an OFF state; detecting whether a pressure sensitive sensor in a seat skin constituting a seating surface is in an ON state or an OFF state; and determining a foreign object insertion state in which a foreign object is inserted between the seating surface and a child seat based on whether the seat belt sensor is in the ON state or the OFF state and whether the pressure sensitive sensor is in the ON state or the OFF state. When the pressure sensitive sensor is changed from the ON state to the OFF state in a state in which the seat belt sensor is maintained in the ON state after the seat belt sensor is changed to the ON state, it is determined as the foreign object insertion state.

Seating detection method and seating detection device

An occupant detection method includes detecting a load applied to a seat for a vehicle, detecting that an occupant is seated at the seat, holding a local maximum of the load which is detected when the occupant becomes seated, setting a standard value of the load in a state in which the occupant is seated at the seat, and estimating a body height of the occupant on the basis of a comparison between the local maximum of the load and the standard value of the load, wherein when the body height of the occupant is estimated, the larger a difference between the local maximum of the load and the standard value of the load is, the higher body height of the occupant is estimated.

Occupant detection method and occupant detection apparatus

A seat occupancy determination apparatus includes a seatbelt attachment detection device, a first load detection device and a second load detection device arranged under a vehicle seat and each detecting part of a load acting on the vehicle seat, a control processor obtaining a first load value and a second load value, the control processor including a sum load value calculation portion computing a sum load value, a no-occupancy determination portion, a slope way determination portion determining that a vehicle is stopped on a slope way, a seatbelt attachment determination portion, a tentative determination portion tentatively making a seat occupancy determination, a forward movement determination portion determining that the vehicle starts moving forward and runs steadily on a flat ground, and a definite determination portion determining that an adult is seated and determining that a child safety seat is fastened.

Seat occupancy determination apparatus

A torsional vibration reduction device provided inside a torque converter includes rolling elements, a plate, and a cover. The plate includes rolling chambers housing the rolling elements. The cover encloses and shields the rolling elements and the plate from a working fluid surrounding the torsional vibration reduction device inside the torque converter. The cover includes first and second covers that are joined together with the plate held between the first and second covers. The first and second covers contact the plate in an axial direction of the torque converter at locations that are, with respect to an axis of the torque converter, on an inner peripheral side and on an outer peripheral side of the rolling chambers. Surfaces of the first and second covers are joined to the plate at least at part of the locations where the first and second covers contact the plate.

Torsional vibration reduction device for torque converter

An occupant sensing method includes steps of: sensing installation of a child seat on a seat of a vehicle; storing a detection value of a load sensor which is provided to be attached to the seat and detects an input load as a first load value, when the installation of the child seat is sensed; storing a detection value of the load sensor as a second load value when a predetermined time period has elapsed from a time point at which the installation of the child seat is sensed; and estimating a load change amount at the time of getting on/off which is a change amount of a load that is generated as the occupant gets on/off the child seat, based on a difference value between the first load value and the second load value.

Occupant sensing method and occupant sensing device

An occupant detection method includes detecting a load applied to a seat for a vehicle, determining whether or not an occupant is seated at the seat, calculating a load deviation value indicating deviation of the load, determining whether or not the deviation exists at the seat on the basis of the load deviation value, and estimating that a seating posture of the occupant is inclined in a direction in which the load is deviated in a case where it is determined that the deviation exists and that a stable state is established, the stable state corresponding to a state in which a difference between a first change amount in a first cycle and a second change amount in a second cycle is within a predetermined range.

A seat occupancy determination apparatus includes a seat belt attachment detection portion, a first and a second load detection sensors, a front-rear load sum computing portion, a front-rear load difference computing portion, a memory portion, an adult possibility determination portion, and a child safety seat determination portion determining a vehicle seat determined as possibly occupied by an adult is occupied by a child safety seat in a case where a first predetermined amount increase condition satisfies by a front-rear load difference value within a time range between a time of engagement and a first time point increases by a first predetermined amount or more from the value at the first time point or earlier and a second predetermined amount decrease condition satisfies by the front-rear load difference value decreases by a second predetermined amount or more within a time range between the time of engagement and a second time point.

A seat passenger determination apparatus includes: a first determination processing unit configured to determine a passenger is not seated on a vehicle seat by having gotten out of the vehicle and transfer the mode to a not-seated recognition mode when a load variation width detected by a load detection apparatus falls within a first threshold value in a state in which a non-fastened state of a seatbelt is detected; and a second determination processing unit configured to determine the passenger is not seated on the vehicle seat by having gotten out of the vehicle and transfer the mode to the not-seated recognition mode when the load variation width detected by the load detection apparatus falls within a second threshold value which is larger than the first threshold value during a predetermined time when the fact that the seatbelt has changed from the fastened state to the non-fastened state is detected.

Seat occupant determining apparatus

A weight detection sensor disposed in a fixing unit fixing a seat side fixing member to a floor side fixed member and measuring a load of a passenger sitting in the seat, includes: a strain body fixed to both end portions of a mounting surface formed on one of the floor side fixed member and the seat side fixing member and arranged in the fixing unit; a connection member fixed to a central portion of the strain body in a vertical direction and fixed to the other one of the floor side fixed member and the seat side fixing member; a strain detection element unit including first to fourth strain detection elements; and a Wheatstone bridge circuit where the first and third strain detection elements are arranged on sides facing each other and the second and fourth strain detection elements are arranged on sides facing each other.

Weight detection sensor and vehicle seat apparatus including plural strain detection elements

A weight detection sensor interposed between a seat side fixing member and a floor side fixed member to measure a load of a passenger sitting in the seat, includes: a strain body fixed to both end portions of a mounting surface formed on one of the floor side fixed member and the seat side fixing member at a predetermined distance from the mounting surface; a connection member fixed to a central portion of the strain body in a vertical direction and fixed to the other one of the floor side fixed member and the seat side fixing member; and a Wheatstone bridge circuit where first and third strain detection elements are arranged on sides facing each other and second and fourth strain detection elements are arranged on sides facing each other, each of the strain detection elements being a variable resistor.

Growing community of inventors

Kariya, Japan

Hiroyuki Fujii