A deformation detection sensor which combines a magnetic resin dispersing a magnetic filler in a resin with a magnetic sensor, of which stability of detection property is highly enhanced. The deformation detection sensor comprises a magnetic resin-containing polymer foam which comprises a magnetic resin, in which a magnetic filler is contained, and a polymer foam in which the magnetic resin is included, and a magnetic sensor that detects a magnetic change caused by a deformation of the magnetic resin-containing polymer foam, wherein the magnetic resin has an elastic modulus of 0.1 to 10 MPa, and a production thereof.

To provide a seat system that allows the information of the user seated in the seat to be acquired by another user, a seat system includes: a seat main body; at least one sensor provided in the seat main body; a control device for processing a signal from the sensor; and a first user interface communicating with the control device and notifying information based on a signal from the control device. Preferably, the sensor acquires information obtained from a seated person who is seated on the seat main body. Preferably, the seat system includes a camera for capturing an image of the seated person who is seated on the seat main body, and the control device causes the first user interface to display the image captured by the camera.

A seat is configured to suitably restrain a warping of a connecting portion in a signal transmission path, when the connecting portion is disposed inside a through hole provided in a pad member of the seat. The seat includes: a pressure sensor that detects a seating pressure of a seat occupant; a leading wire of the transmission path that extends from the pressure sensor; a cable of the transmission path that extends from an electronic control unit for a signal output from the pressure sensor; a warp restraining member that restrains a warping of a connecting portion of the leading wire and the cable; and a through hole formed in a pad member of the seat, from one end to another end in the thickness direction of the pad member. The warp restraining member is inserted into the through hole to thereby pass the transmission path through the through hole.

To provide a sensor unit that can be easily attached to and detached from a seat in which a seated occupant is seated, and a seat equipped with a sensor unit. A sensor unit includes a sensor module including a biological sensor that detects a biological signal of a seated occupant, and a wireless communication unit that is connected to the biological sensor to wirelessly transmit the detected biological signal to an outside; and a sensor holder that holds the sensor module. The sensor holder includes a seat attachment portion detachably attached to an attached portion that is provided in a front surface of a seat cushion at a position at which the seated occupant is abuttable against the attached portion.

A seat is configured to suitably restrain a warping of a connecting portion in a signal transmission path, when the connecting portion is disposed inside a through hole provided in a pad member of the seat. The seat includes: a pressure sensor that detects a seating pressure of a seat occupant; a leading wire of the transmission path that extends from the pressure sensor; a cable of the transmission path that extends from an electronic control unit for a signal output from the pressure sensor; a warp restraining member that restrains a warping of a connecting portion of the leading wire and the cable; and a through hole formed in a pad member of the seat, from one end to another end in the thickness direction of the pad member. The warp restraining member is inserted into the through hole to thereby pass the transmission path through the through hole.

A car seat pressure sensor device with wireless communication includes a wireless transmitter and a pressure sensor assembly. The wireless transmitter is configured for wirelessly communicating with a portable electronic device via a wireless signal. The pressure sensor assembly includes at least one pressure sensor and is interconnected with the wireless transmitter. The pressure sensor assembly is operable to turn on or off the wireless signal from the wireless transmitter. The pressure sensor device is configured to turn on the wireless signal from the wireless transmitter for communication with the portable electronic device when the pressure sensor assembly senses a certain weight, and turn off the wireless signal from the wireless transmitter for communication with the portable electronic device when the pressure sensor assembly does not sense the certain weight.

Systems of a vehicle for sharing vehicle controls are provided. One example system includes an on-board computer that is part of the vehicle and communications circuitry of the vehicle usable by the on-board computer. The communications circuitry is configured to make connections with a wireless network for accessing a server. The on-board computer is configured to execute instructions for enabling portable devices that enter the vehicle to make a wireless connection with the vehicle. Vehicle electronics are interfaced with one or more vehicle systems and the on-board computer. The on-board computer is configured to provide access to at least one graphical user interface viewable via the portable device using the wireless connection. The at least one graphical user interface includes input options that enable control for features of said vehicle systems of the vehicle. A location for the portable device within the vehicle is identified. The location is associated with select ones of the vehicle systems for an environment zone of the location, and vehicles systems that are not for the environment zone are not provided as input options via the graphical user interface provided for the portable device. The graphical user interface provides preferences associated with a user account when the portable device transfers credentials to the vehicle when making the wireless connection with the vehicle.

A vehicular occupant determination apparatus includes a load detection portion, an occupant determination portion, an acceleration detection portion, a transition prohibition portion, and a transition permission portion. The transition permission portion detects whether an acceleration increases or decreases a load, and sets a transition permission state even during the transition prohibition state. In the transition permission state, a determination result of a first occupant type is permitted to transit to a determination result of a second occupant type with a smaller load than the load of the first occupant type when the acceleration increases the load, and the determination result of the first occupant type is permitted to transit to a determination result of a third occupant type with a greater load than the load of the first occupant type when the acceleration decreases the load.

A system for testing a pressure sensor of a seat includes a loading device and a processor. The loading device removably applies weight to the seat. The processor receives a measurement of a pre-installation pressure offset of a bladder of the pressure sensor measured before installation of the pressure sensing assembly into the seat. The processor is programmed to receive a weighted measurement from the pressure sensor in the seat when the loading device applies weight to the seat and an empty seat measurement from the pressure sensor in the seat when the loading device does not apply weight to the seat. The processor determines a threshold value by subtracting the empty seat measurement from the weighted measurement. The processor determines a seat pressure offset value by subtracting the pre-installation pressure offset value from the threshold value. The processor compares the seat pressure offset value to a selected range.

A vehicle seat occupancy detection system includes at least one capacitive sensor member having at least one sensing electrode, an impedance measurement circuit for determining a complex impedance or a complex admittance of the at least one sensing electrode, an evaluation unit for generating an output signal based on a determined complex admittance of the at least one sensing electrode and comparison of the determined complex admittance to at least one predetermined value, and at least one electrically conductive ground connecting member that is intentionally electrically connected to the reference electrode and that is arranged in close proximity to the at least one sensing electrode. The at least one ground connecting member and the at least one sensing electrode are galvanically separated such that, when the seat gets wet, the sensing electrode is directly electrically connected to the reference electrode by the at least one ground connecting member.