IMPHY® SUPRA 50: Combining Passenger Comfort and Energy Savings
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Driven by a growing preference for automatic transmission vehicles, the automotive industry is increasingly turning towards innovative torque sensors for thermal and electric cars. Aperam IMPHY® SUPRA 50 offers the high permeability and high saturation induction levels this application needs.
Although torque sensors use a variety of methods to measure torque, they all measure the ‘force’ being used to turn a specific element. In Electric Power Steering (EPS) systems, which consist of an electric motor and a control unit, torque sensors provide information on the steering torque. They do this by precisely measuring the torsion bar angle needed for a particular steering movement.
EPS systems offer a number of advantages. First and foremost, they allow drivers to steer the wheel using minimal manual force. EPS systems are also lightweight, easy to maintain, and offer a high level of energy efficiency – not to mention their comfort, safety, and fuel-saving benefits.
One of the key components of an EPS system is the stator, the stationary part of the electric motor’s rotary system. Aperam’s IMPHY® SUPRA 50, a FeNi48 alloy, provides the high permeability and high saturation induction levels that these stators need.
With IMPHY® SUPRA 50, stators benefit from:
- Optimized magnetic output resulting in a lighter device
- More efficient steering due to low losses
- A low coercive field and high permeability means increased precision
- Unique physicochemical properties that result in easy implementation
In addition to its use with stators, our IMPHY® SUPRA 50 grade, along with our PERMIMPHY (Ni80FeMo5) and INVAR®M (Ni36Fe) grades, are all well-suited for use in the collector too.