Advanced Sensorless Distributed Seat Concept

Electrical complexity in products yielded from Automotive Industry goes on the increase. During the last years, new functionality and cost-effective strategies have been introduced, for reducing for instance: weight, packaging and assembly labours of components and devices. Several concepts and approaches have been put forward and developed in literature. Among these concepts and solutions, those regarding the chance of improvement as technology integrators are most accepted. As mentioned supplier, Lear is working on advanced designs for reaching this market’s common aiming. Involved in a wider dual voltage concept design, that ensure scalable integration and platform’s differentiation, a ripple counting strategy, by means of application and developing of an intelligent switch module that plays the role of a CAN-gateway in a automotive seat has been carried out. This new module connects the seat to the rest of the car driving and storing the position of the different loads reducing the number of wires involved in integration. As major that allows cost-effective integration, an embedded hybrid HW/SW implementation has been selected under 8-bit microcontroller programming.