Skip to Content

High-Speed Position Sensors

Cut inside of electric car showing electric motor

Main Content

High-Speed Position Sensors

A critical aspect to monitor in electric vehicles is the position of the motor’s rotor, which in combination with the stator, generates the torque that propels the vehicle forward. By measuring the angular position of the rotor, and, thereby calculating its rotational speed, crucial information about the motor’s operation is relayed to the EV control unit (EV-ECU).

To help improve the energy efficiency of EVs, CTS is introducing a new high-speed motor position sensor, designed specifically for electric engines. Replacing traditional resolver technology, this electronic resolver solution operates on the principles of induction sensing.


Speed Sensors

Our speed sensors are environmentally sealed and can be provided in integral connector or pigtail packaging. Our laser welded seal offers the ability to reduce costs and improve reliability on the electronic chip by preventing induced stresses on mechanical joints internal to the product. Package diameters can also be reduced to as small as 10mm in diameter.

These sensors can be conventionally packaged at the wheel. Additionally, they can be mounted as caps or as smaller packages between rows within the bearing. Environmental protection is paramount in sensor reliability; our laser welded seals and molding technologies are utilized extensively to fulfill this need.

CTS speed high position sensor mounted on motor with call out box showing where product is mounted

  • Features
  • Applications
  • Technical Resources

Speed Position Sensor Components on transparent background

  • Proven performance and reliability in rugged environments

  • Best-in-class laser welded construction that improves field reliability 

  • Side and end read speed sensor options available

  • Available with an integrated harness and connectors

  • Accuracy level of <1% at speeds around 250,000 eRPMs

  • Customized and standard solutions are available

CTS engineers high-speed position sensors for electric vehicles (EV), hybrid electric vehicles (HEV), battery electric vehicles (BEV), and plug-in hybrid electric vehicles (PHEV). These sensors have an accuracy level of <0.5% at speeds <250,000 eRPMs.

Designed using inductive technology, our position sensors can be customized for unique customer application needs. Our team partners with customers to design sensors that are guaranteed to fit specific motor shaft requirements, saving customers from spending time and resources searching for an off-the-shelf product that may not be the best fit.

Skip to Results Listingclear all

Product (Family)

Resource Type

Please wait while we gather your results.

Results Updated

3 Results Listed

Transportation and eMobility brochure thumbnail of automotive products

Brochures / Catalogs, Corporate Documents

CTS eMobility High-Speed Motor Position Sensor Tech Brief

Application Note / Tech Brief, Brochures / Catalogs

man looking at schematics on computer screen

Collaborate With a Product Expert

CTS can design and deliver products that meet the unique requirements of your project. Work with a technical expert to begin your design today.

Let's Talk

Related Products

Please wait while we gather your results.
Electric car charger sitting in white holster with cars in background

Busbar Mount Current Sensors

CTS designs and manufactures busbar current sensors with accurate monitoring, enhanced safety and efficient power distribution.

Car driving off road on uneven rocks

Chassis Position Sensors

CTS' experience and expertise in this application enable us to accommodate a variety of mounting angles, difficult packaging, and robust sealing required for under-chassis applications.

Solar panels lined up on hill with sunrise

Clamp-On Current Sensors

The CO-04-SF and CO-10-SF magnetic field concentrators and clamp on sensors are designed for non-intrusive and isolated measurements of electric currents.

CTS ebrake pedal module on a white background


The CTS eBrake is a custom modular pedal that operates as a brake-by-wire technology designed for electronic braking systems (EBS).