Electric Power Steering EPS
In the case of Electric Power Steering, a sensor registers the driver's steering movements and electronically controls an electric motor on the steering column or the steering rack. This generates a torque sufficient to the requirements, which supports the driver's steering movement.
Bosch thus enables passenger- and engine- compartment application. In addition to the series of asynchronous motors already in production, Bosch will, in future, also be offering motors from the brush-less Permanently Stimulated Magnet (PSM) series, with or without integrated control and regulation electronics. These can be used in electromechanical steering systems with rack forces of up to 10,4 kN (ASM) and, in future, even up to 13 kN (PSM). Due to the principle involved, the asynchronous motors (ASM) have no locking moment, the lowest torque undulation and a high safety standard, thus fulfilling in particular the high demands made on EPS motors.
The PSM- series offers high-er efficiency, smaller space requirements and lower weight. They thus make an additional contribution to reductions in consumption and emissions.
