Abstract: An occupant weight sensing system includes a loading rod, which replaces a seat height adjuster pivot bolt and extends away from a seat height adjuster link. A sensing element is mounted at the opposing end of the loading rod. When force is applied the loading rod acts as a cantilever to transfer radial force to the sensing element. A plurality of strain gages are arranged down the center of the sensing element to provide a measurement of strain on the sensing element. The loading rod flexes to transfer any excessive force to a seat bracket. The sensing element has a low sensitivity to axial forces to avoid requiring additional mechanical components to protect the sensing element.

Abstract: A load cell includes a first element, a second element and a sensor measuring force between the first and second elements along a first axis. In some embodiments, lateral and angular decoupling is provided by the provision of a convex surface between the first and second elements. The convex surface is slidable relative to at least one of the first and second elements in a first direction perpendicular to the first axis.

Abstract: An occupant weight sensing system includes a loading rod, which replaces a seat height adjuster pivot bolt and extends away from a seat height adjuster link. A sensing element is mounted at the opposing end of the loading rod. When force is applied the loading rod acts as a cantilever to transfer radial force to the sensing element. A plurality of strain gages are arranged down the center of the sensing element to provide a measurement of strain on the sensing element. The loading rod flexes to transfer any excessive force to a seat bracket. The sensing element has a low sensitivity to axial forces to avoid requiring additional mechanical components to protect the sensing element.

Abstract: A load cell includes a first element, a second element and a sensor measuring force between the first and second elements along a first axis. In some embodiments, lateral and angular decoupling is provided by the provision of a convex surface between the first and second elements. The convex surface is slidable relative to at least one of the first and second elements in a first direction perpendicular to the first axis.

Abstract: A load cell includes a first element, a second element and a sensor measuring force between the first and second elements along a first axis. In some embodiments, lateral and angular decoupling is provided by the provision of a convex surface between the first and second elements. The convex surface is slidable relative to at least one of the first and second elements in a first direction perpendicular to the first axis.

Abstract: A vehicle seat subframe assembly includes a subframe to which are attached a plurality of seat height adjuster links and a plurality of weight sensors. The subframe assembly is adapted to be mounted between the vehicle seat and a seat slide assembly. In one embodiment, the seat height adjuster links are connected to the seat slide assembly and the weight sensors contact the vehicle seat. In another embodiment, the seat height adjuster links are connected to the vehicle seat and the weight sensors contact the seat slide assembly. Overload bolts provide gaps that protect the weight sensors from being overloaded in the event of a collision.

Abstract: A load cell includes a first element, a second element and a sensor measuring force between the first and second elements along a first axis. In some embodiments, lateral and angular decoupling is provided by the provision of a convex surface between the first and second elements. The convex surface is slidable relative to at least one of the first and second elements in a first direction perpendicular to the first axis.