A passenger's weight measurement device for a vehicle seat includes an upper rail provided on a lower rail that is fixable to a vehicle floor, the upper rail being movable in at least one of rear and front directions; a load sensor fixed onto the upper rail; and a frame provided on the load sensor and below the vehicle seat. In plan view, the load sensor protrudes from the frame in at least one of left and right directions.

A vehicle seat comprises: a pair of opposed frames disposed opposite to and separately from each other; a pair of connecting frames disposed separately from each other in a perpendicular direction perpendicular to an opposing direction of the pair of opposed frames, the connecting frames being configured to connect the pair of opposed frames; a bridging wire disposed to bridge the pair of connecting frames; a reinforcing wire disposed to cross the bridging wire as viewed from an occupant side; and a plate-shaped plastic member configured to cover the bridging wire and the reinforcing wire at least at their crossover such that the bridging wire and the reinforcing wire are arranged to be spaced apart from and thus kept out of contact with each other, the bridging wire and the reinforcing wire being connected with the plate-shaped plastic member.

A method of adjusting a vehicle seat includes detecting one of a current position of a vehicle occupant in a vehicle seat with one of a pressure sensitive fabric, a sound transmitter and transducer, and an electromagnetic field transmitter and transducer. A comfortable position is determined of the vehicle occupant. The vehicle seat is adjusted from the current position to the comfortable position. A vehicle seat assembly is also disclosed.

A vehicle seat occupant classification system for use in a vehicle seat includes a weight-responsive sensor, at least one bracket member serving as a holder for the weight-responsive sensor, and an evaluation unit configured to evaluate a status of the at least one weight-responsive sensor. The bracket member is fixedly attached to the seat base. If a mechanical load at least corresponding to a first pre-determined threshold value is applied by a seat occupant, a portion of the vehicle seat comes into mechanical interaction with the at least one weight-responsive sensor, and is configured to change a status of the at least one weight-responsive sensor if a mechanical load at least corresponding to a second pre-determined threshold value is applied. Relative movement between the seat base and the at least one weight-responsive sensor is at least excluded for applied mechanical loads that are smaller than the first pre-determined threshold value.

A vehicle seat includes a pair of side frames and a load sensor. The load sensor is provided at a lower portion of the side frame or below the side frame. The vehicle seat further includes a supporting member which is connected to the side frame and which supports a seated person. The supporting member includes a seat portion which receives a weight of a seated person. The seat portion is provided below the load sensor.

A low-cost weight-measurement and sensing system is provided. The system may include a sensor assembly configured to be mounted between a floor pan of a vehicle and a seat of the vehicle. The sensor assembly may include a plurality of sensor modules. Each sensor module of the plurality of sensor modules may be configured to sense a force applied thereupon and generate a reading representative of the force applied thereupon in response thereto to provide a plurality of sensor readings. The system may also include a control module connected to the plurality of sensor modules. The control module may be configured to determine a weight of an occupant of the seat of the vehicle based on the plurality of sensor readings.

A sensor module for use in a low-cost weight-measurement and sensing system is provided. The sensor module may include a substrate configured to be mounted between a floor pan of a vehicle and a seat of the vehicle. The sensor module may further include a force sensing element disposed upon the substrate. The force sensing element may be configured to sense a force applied thereupon, and generate a reading representative of the force applied thereupon in response thereto to provide a sensor reading. The sensor module may also include a wiring harness connected to the force sensing element. The wiring harness may be configured to transmit the sensor reading to a control module. The substrate may define an aperture configured to surround a fastening element used to fasten the seat to the floor pan of the vehicle.

The present invention is generally related to isolation systems for various seating configurations. The isolation system may comprise a first set of isolators positioned perpendicular to a second set of isolators. The positioning of the first and second sets of isolators may enable the isolation system to exhibit a radial stiffness of at least 350 lbf/inch. The improved radial stiffness of the isolation system may dampen and attenuate the transfer of energy (e.g., vibrations) to the seat, which may facilitate a smoother ride for an operator sitting in the seat.

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.

A vehicle seating system includes a vehicle seat, piezoelectric sensors individually positioned at respective locations within the seat corresponding to anatomical locations of a person sitting in the seat, and a controller. The sensors to generate electrical signals in response to mechanical stress applied on the sensors from biologically motivated force inputs of the person. The controller to detect from the electrical signals generated by the sensors biometric information of the person corresponding to the biologically motivated force inputs of the person.