The present disclosure relates to a method for determining the occupancy status of a seat of a motor vehicle, the method being implemented by a determination system comprising a seat, six interdigitated capacitive sensors, and a controller comprising a reference capacitance value and a threshold value for each interdigitated capacitive sensor, the method comprising a step of measuring three capacitance values for each interdigitated capacitive sensor, the following steps being implemented by the controller for the measured capacitance values: calculating a resulting capacitance value based on the measured capacitance values, calculating the difference between the resulting capacitance value and the reference capacitance value, comparing the calculated difference to the threshold value, determining the occupancy status of the seat, based on the result of the comparison.

A seat load detection method includes a process in which a control unit records a transition of a load detection signal and a transition of a seat load, a process in which the control unit specifies a timing when a load sensor detects a collision of a vehicle based on a transition record of the load detection signal, and a process in which the control unit calculates a correction value of the seat load based on a difference value between a stable seat load provided after the control unit detects the collision of the vehicle and a stable seat load provided before the load sensor detects the collision of the vehicle.

The present invention is directed to apparatus for detecting a child left unattended in a car seat as well as the status of the connection between the car seat and the vehicle. The apparatus includes a sensor module and a processor. The sensor module including a sensor for measuring force data associated with the coupling between car seat and a vehicle. The processor receives and analyzes the sensor data to determine the status of the child/child seat, and then communicates status data to a caretaker. Counter-measure instructions can also be provided to the vehicle for altering the vehicle state/environment.

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.

A capacitive sensor member (130) of a vehicle seat occupant detection and classification device (18) comprises a first electrically conductive antenna member (132) and at least a second electrically conductive antenna member (134) that is adjacently arranged to the first electrically conductive antenna member (132) without any mutual galvanic connection. At least one electrically conductive bridging member (146) is fixedly attached to at least one elastic spacer member (148) that has elastic mechanical properties in a specified direction (54). If a mechanical load (F) is applied to the capacitive sensor member (130) in the specified direction (54) that is equal to or larger than a predetermined value for the mechanical load (F), the at least one electrically conductive bridging member (146) provides at least one galvanic contact between the first electrically conductive antenna member (132) and the second electrically conductive antenna member (134).

Systems, methods, and other embodiments described herein relate to sensing ingress of water in a vehicle. In one embodiment, a method includes acquiring, from a radar of a vehicle, radar data about a passenger cabin of the vehicle. The method includes determining a current state of the passenger cabin according to the radar data. The method includes, responsive to identifying that the current state indicates an ingress of water into the passenger cabin, generating a response to the ingress of the water.

A device for activating/deactivating an airbag function of an airbag assigned to a vehicle seat in a vehicle, having an identification system for occupant identification and having an evaluation unit, by which the occupant located on the vehicle seat is classifiable on the basis of the sensor data of the identification system. The evaluation unit activates or deactivates the airbag function in dependence on the occupant classification. The identification system has a plurality of different sensors, i.e., an interior sensor, an exterior sensor, a vehicle seat sensor, a belt sensor, a baggage compartment sensor, and/or a speech recognition sensor. The evaluation unit carries out the occupant classification on the basis of all sensor data.

A system and method for child car seat safety detection and notification are disclosed. A particular embodiment is configured to: provide at least one sensor to measure a condition present in an environment in which a child is restrained in a child car seat in a vehicle; determine, based on sensor data from the sensor, if the condition requires a notification to be sent to a user; generate a notification message including at least a portion of the sensor data and information indicative of a location of the child car seat; send the notification message to a mobile device application; and send the notification message to a vehicle subsystem application.

An occupant discrimination system of a vehicle seat includes a load detecting portion disposed on a lower side of a seat and detecting a load acting on the seat; an occupant discrimination portion discriminating a state of an occupant among a no occupant state, adult seated state, and child seat fixed states based at least on a load detected from the load detecting portion and a load continuation duration.

In addition to the loading mode of a capacitive sensing device of a seat occupancy detection and classification system, a second measurement mode is introduced, which allows a discrimination of objects (CRS or human) with and without grounding condition. Depending on the value of the new measurement, the data is allocated to different groups which are subject to different thresholds in the loading mode. This means that if the new measurement indicates a grounding condition of the object, a higher threshold in the loading mode will be applied. In this way CRS with grounding condition will be classified by means of the higher threshold, resulting in a robustness increase. Typical human sitting positions do not show a grounding condition and will be classified by the lower threshold.