A load detector is capable of detecting a load placed on a seat. A temperature detector is capable of detecting a temperature and located adjacent to the load detector. A correction controller corrects the load detected by the load detector in such a way as to deduct a time change amount of the load from the detected load when a time change amount of the temperature detected by the temperature detector is larger than a predetermined threshold value of the time change amount of the temperature and the time change amount of the load detected by the load detector is smaller than a predetermined threshold value of the time change amount of the load. A determination controller determines a sitting condition on the seat based on the corrected load.

An occupant support adapted for use in a vehicle includes a sensory system and a control system. The sensor system is configured to generate signals indicative of at least one of a physiological characteristic of the occupant.

A thermistor-based system and method for distinguishing between adult and child passengers and, of the child passengers, between those seated in a child restraint system and those seated in a child booster is provided. The disclosed inventive concept includes at least one classification thermistor/temperature sensing device, at least one reference thermistor, an algorithm to compute and classify conditions, and related wiring and hardware. The classification thermistor/temperature sensing device is located in a seat cushion assembly and a seat back. The temperature sensors are used to detect heat transfer between an object in contact with the cushion through the seat trim and, if applicable, some amount of seat comfort base material. The reference thermistor may be provided to enhance robustness of classification determination. The algorithm computes and classifies conditions based on at least the magnitude and/or the rate of temperature change between the classification sensor and the reference sensor.

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.

An occupant detection system includes a controller, a sensing electrode, and a shield electrode, the electrodes disposed in a vehicle seat. The controller is electrically coupled to the sensing electrode and shield electrode by a sensing circuit. The controller is configured to send an input signal to the sensing electrode, the shield electrode, or both and measures current, impedance, or capacitance values to determine the presence of an object on the seat, to classify the object, or both.

A method, system, and process are described to decrease muscle fatigue and improve circulation of an individual resting on a support device, such as an adjustable chair or bed. The body pose and heat distribution of the individual are determined and used to estimate muscle fatigue and circulation. The estimated muscle fatigue and circulation are then used to determine settings for the support device or the temperature of the environment.

A method in conjunction with a passenger guidance system guides a passenger to a passenger seat disposed in a vehicle. In order to guide a passenger quickly and reliably to a passenger seat which corresponds to his needs and is disposed in a vehicle, and to improve the flow of passengers, it is proposed to determine occupation states of passenger seats of the vehicle and to guide the passenger to an unoccupied passenger seat. For carrying out the method, a passenger guidance system is proposed which has at least one device for determining the occupation state of passenger seats arranged in a vehicle, at least one evaluation device which is configured to determine a destination to which a passenger is to be guided, and a transmission device by which data which are suitable for indicating a path to the destination can be transmitted to at least one display device.

The present disclosure comprises methods and devices for alerting those outside a vehicle that a passenger or package is present within the vehicle.

A device for detecting the position of a person on a cushion includes at least two moisture sensors located in the cushion.

A dongle that may be plugged into an On-Board Diagnostic (OBD) port of a vehicle and provide notification if a human or animal is left within a parked car. The dongle accesses a first sensor from the vehicle's communication system and a second sensor from within the dongle. If data from the first and second sensors exceeds predetermined threshold values programmed into the dongle's memory, then the dongle sends out a response signal. The response signal may be sent to an owner's cellular phone or to a 911 dispatch center. Additional sensors within the vehicle, or placed within the dongle, may also be used to verify the presence of a human or animal left within the parked vehicle.