SX-4462 fourth-generation Magnetorque lightweight steering sensor delivers high accuracy and reliability, with versatile customisation options

What are the advantages of non-contact torque sensors? 

Non-contact torque sensors, such as Hall-type sensors, measure changes in magnetic field to read changes in steering direction and torque. 

Inside our non-contact sensor, a magnetic rotor with pole pieces varies the output voltage depending on wheel torque. That magnetic voltage information is passed to the ECU.  Non-contact sensors have fewer moving parts which means non contact wear nor contact noise, and less sensitivity to extreme environments. 

27 November, 2018

High accuracy Hall effect magnetic torque sensor from TT Electronics boosts EPS driveability for safer, sustainable motoring.

TT Electronics, a global provider of engineered electronics for performance critical applications, has introduced the SX-4462 Hall effect magnetic non-contact torque sensor, a flexible and cost-effective sensor offering high accuracy and diagnostic capabilities for electronic power steering (EPS) applications including off-road vehicles (ORVs), three-wheelers, light commercial trucks, and tractors.

The SX-4462 fourth-generation Magnetorque (MT4) is easy to integrate, leveraging TT’s system expertise and development support. Additional flexibility is provided by customisation options including full-scale range and sensitivity, wire length, product marking and connector type. The 4.5V-5.5V supply voltage range simplifies connection to a convenient power source, and the maximum current of just 20mA ensures always-low power consumption. Redundant outputs that allow full diagnostics and output voltage clamps that enable open/short detection ensure flawless performance under the toughest use conditions.

TT’s MT4 Magnetorque family of torque sensors allows secure, tactile steering control, unaffected by vibration, contamination or wear factors that impair ordinary contacting sensors. It is ideal for ORVs, including all-terrain vehicles (ATVs) and utility terrain vehicles (UTVs), as well as industrial vehicles used in locations such as quarries, factories, farms, or construction sites.

Weighing just 82 grams, this lightweight sensor aids vehicle economy and dynamics. Engineered for high linearity near the zero-degree position, and torque angle of ±5°, it performs multi-turn measurement over ±2.5 turns with typical sensitivity of up to 0.4 V/°.