11th-Jul-25, 07:10 PM
Exact percentages of sensored versus sensorless (unsensored) brushless slot car motors are not readily available in current data or industry reports, as this specific niche lacks comprehensive market surveys. However, I can provide insight based on trends and characteristics in the slot car and broader RC motor markets. A look online however shows 99.% of brushless slot car motors are indeed uncensored.
Brushless motors for slot cars, like those used in RC applications, are predominantly sensorless due to their simpler design, lower cost, and suitability for high-speed performance, which aligns with the needs of most slot car racing scenarios. Sensorless motors are often preferred in slot cars because they require less maintenance, have fewer wires, and are generally more robust in high-speed, high-vibration environments, as noted in discussions about brushless motor applications. Sensored motors, while offering smoother low-speed control (heck I never use below 25% PWM, and my controller is set up that way) and better torque at low RPMs, are more complex and expensive, making them less common in slot car racing. Why would I design a product that has limited application due to lack of motors and cost up to 6 times the price and introduce more wires when we can simply tune the harmonics? Of course that takes skill and effort.
Currently the TI webshop has a glitch but we are aiming to order one asap. Once you learn the TI FOC program it only takes 10 minutes to tune a set up.
We plan to have (if we proceed) firmware for each motor type. Just go to the app, choose your motor and upload the firmware to suit. Although a config program is another possibility.. It works be nice to use the TI chip as they are only $4 in bulk and supply 8A which is more than enough for digital racing.
This could work out nicely also for WAM users who can install this into their car to achieve brushless and by default gain dozens of Scorpius goodies like a full light set, fuel, throttle mapping, OLED screen, telemetry, pit bay option, tacho etc.
A brushless controller with wireless control? Cool.
Brushless motors for slot cars, like those used in RC applications, are predominantly sensorless due to their simpler design, lower cost, and suitability for high-speed performance, which aligns with the needs of most slot car racing scenarios. Sensorless motors are often preferred in slot cars because they require less maintenance, have fewer wires, and are generally more robust in high-speed, high-vibration environments, as noted in discussions about brushless motor applications. Sensored motors, while offering smoother low-speed control (heck I never use below 25% PWM, and my controller is set up that way) and better torque at low RPMs, are more complex and expensive, making them less common in slot car racing. Why would I design a product that has limited application due to lack of motors and cost up to 6 times the price and introduce more wires when we can simply tune the harmonics? Of course that takes skill and effort.
Currently the TI webshop has a glitch but we are aiming to order one asap. Once you learn the TI FOC program it only takes 10 minutes to tune a set up.
We plan to have (if we proceed) firmware for each motor type. Just go to the app, choose your motor and upload the firmware to suit. Although a config program is another possibility.. It works be nice to use the TI chip as they are only $4 in bulk and supply 8A which is more than enough for digital racing.
This could work out nicely also for WAM users who can install this into their car to achieve brushless and by default gain dozens of Scorpius goodies like a full light set, fuel, throttle mapping, OLED screen, telemetry, pit bay option, tacho etc.
A brushless controller with wireless control? Cool.
www.scorpiuswireless.com
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