In one embodiment, the present invention comprises broadcasting a broadcast burst in a broadcast channel from a base station. The apparatus includes a plurality of terminals having a portion of the terminals grouped as terminal pairs, each terminal of the plurality of terminals operable to couple to a node in a battery stack. A steering angle detection device is provided, wherein the steering system regulates the assistance as a function of a steering angle detected by the detection device. High-strength steel parts having very low residual porosities and a high geometric tolerance are obtained by sintering the matrix at usual sintering temperatures after compaction.