Amphenol Piher has developed a high-speed inductive position sensor specifically designed for powertrain systems in hybrid and electric vehicles. This sensor plays a crucial role in providing accurate feedback on the angular position, direction, and speed of the rotor's shaft, enabling the optimization of motor control by the vehicle's control unit.
The position sensor is designed to be mounted on the same shaft as the electric machine rotor. Ensuring precise and reliable sensing of the rotor's position is essential for achieving optimal motor performance. The sensor is specifically engineered to withstand external magnetic interference fields that may be generated by sources such as electric motors, ensuring accurate measurement even in challenging operational environments.
The sensor operates based on the principles of induction in a wire loop and the generation of eddy currents. It detects the position of a solid metallic structure that is sliding or rotating above a set of coils comprising one transmitter coil and two receiver coils. Notably, this sensor does not require the use of magnets, making it a cost-effective solution. The metallic target can either be milled into the end of a metallic shaft or integrated into the customer's specific application.
Amphenol Piher also offers customizable product design packaging to accommodate different form factors, fit requirements, and functional specifications. This includes the option to select the appropriate wire harness and interface connector, ensuring seamless integration with the overall system design.
In summary, Amphenol Piher's high-speed inductive position sensor is specifically designed for hybrid and electric vehicle powertrain systems. It accurately detects the angular position, direction, and speed of the rotor's shaft, optimizing control of the motor inverter. The sensor operates without the need for magnets, utilizing induction and eddy currents for position sensing. Customizable packaging options are available to meet specific customer requirements.
Features
Standard pole numbers: 6, 8, and 12, with others available upon request
AEC-Q100, Grade 0 automotive-qualified IC
Wide operation temperature: -40°C to +150°C; coil temperature can be >150°C
Supply voltage: 5 V ±10%
Overvoltage and reverse-polarity protection: max. -18 V to +18 V
Power or ground loss detection
Stray field immunity, no shielding required
ESD and short-circuit protection
Speed up to 600K (electrical) RPM (differential sine and cosine output)
Customized cable and connector interface
Low-speed models are available featuring analog, PWM, or SENT output with 10 bit and 12 bit resolution full scale
Tell us what you're after