Position Sensors, Speed Sensors and Potentiometers

Engine transmission systems position sensors.

Generally, a device called “transmission” is mounted on the vehicles such as motorcycles and cars, which run on the engine power. There are two basic types of transmission systems: manual and automatic.

Automatic transmission  can change gears without any input from the driver. The transmission is the device which keeps rotating speed of the engine within proper range by the combination of the gears.
The magnet is attached to the end of the gearbox’s shifter input shaft and the sensor is placed outside the gearbox’s housing, avoiding drilling holes through the aluminium housing for sensor integration.
Our sensor contactlessly detects the position of the gear, such as first or second, and sends the data as electric signal to the Engine Control Unit (ECU). It generates an output voltage proportional to the angle of the input shaft.

transmission hall sensor

There is an air gap between the magnet and the sensor, so there is no wear that otherwise would result in mechanic abrasion and electrical discharge sparks.


piher gear travel sensor

Main requirements:
Sealed for harsh enviroments.
Resistant to vibration, extreme temperatures.
Long life.
Asil level B or C sensors

gearshift sensor

Piher´s advantage

  • Hall effect based: no wear.
  • Easy to install, maintain and replace.
  • Redundancy and self-diagnostics..
  • It is not affected by dust or moisture compared to light-based solutions (optical encoders and others).
  • Improved reliability and precision.
  • Keeps position on power loss.
  • Tolerant to misalignment.
  • Functionality: CAN, Analog, SPI or PWM outputs.
  • Speed and direction sensing.

Transmission - gearshift control sensors and potentiometers

transmission potentiometer

Piher is a manufacturer of transmission sensors for these vehicle types:
- Agriculture
- Coach
- Construction
- Defense
- Distribution
- Energy
- Fire + Emergency
- Mining
- Municipal + Utility Services
- Port Services
- Refuse
- RV + Motorhome
- School Bus
- Specialty
- Tractor
- Transit + City Bus
- Laboratory automation
- Manufacturing
- Semiconductor Handling
- Robotics
- Factory Automation
- Test & Measurement

Displacement and position sensors. Zero gear sensor.
Automated gearshift (ATM) sensors. Clutch actuator travel sensor.
Dual clutch transmissions (DCT) sensors.
Power transmission sensors. Shift travel sensor and selector angle sensor.
Twin displacement sensors.
Start-stop function sensors.
Electronic brake sensors.
Zero-gear sensor.
Gearshift lever position.
Angle-of-rotation sensor.
Ride height sensor.
Brake pedal travel sensor or brake pedal angle sensor.
Gearbox shift travel sensor.
Gearbox selector angle sensor.
Gear change sleeve sensor.
Gearshift rod sensor.
Clutch and dual clutch cylinder travel sensor
Selector shaft sensor.
Shift finger sensor.