Throttle Position Sensor


Throttle Position Sensor

Throttle position sensors form part of the fuel management systems on vehicles, they are part of our product range at Variohm. We have a range from our trusted suppliers and also a range which we have designed and built ourselves.

What is a throttle position sensor and what does it do?

Within a motorsport engine - or the engine of any vehicle, there is a throttle valve. The throttle valve opens when the accelerator pedal is compressed. A throttle position sensor is used to measure how open the throttle valve is and therefore controls the amount of air which can flow into the engines intake manifold. 

The throttle position sensor is mounted onto the throttle body and measures the opening and closing movements of the throttle valve and these are transmitted to an engine control module, this information, as well as other measurements including; temperature, engine RPM and mass air flow (MAF), are used by the engine control module to determine the amount of fuel being injected into the engine and the spark timing. 

Many Throttle Position Sensors use non-contacting technology such as; Hall Effect, magnetostrictive or inductive technologies are used. 

What is the importance of a Throttle Position Sensor?

Without a throttle position sensor, there would be no way for the engine control module to monitor the amount of fuel needed or be able to time the ignition effectively causing the engine to surge or stall, this can be very dangerous for the driver and other road/track users.

Throttle Position Sensors Available from Variohm

Many of our throttle position sensors possess similar features to each other;

  • Simple mounting 
  • Outstanding repeatability
  • Long life
  • IP67 protection rating 
  • Operate in a wide temperature range

Our Euro-XP range has added features including;

  • Hall effect technology
  • Programmable angles from 30 - 360
  • Redundant output
  • Short lead times
  • Long life
  • Extremely robust
  • IP67/68 protection 

Euro-XP - Programmable angle sensor

Euro-XPK - Puck programmable angle sensor 

Euro-XPD - D shaft programmable angle sensor

VTP11 - also part of our Throttle Position Sensor range, has the following features;

  • Simple flange mounting
  • Conductive plastic track for durability
  • Long life
  • IP66 protection
  • Wider operating temperature range
  • Excellent under vibration 

CMRK -one of our newest throttle position sensors and part of our micro range. Based on the 28mm diameter Euro-XP range, the CMRx range can go as small as just 21.50mm outer diameter. Features include;

  • Puck and magnet design
  • Hall effect
  • Long life
  • Extremely robust
  • IP68 protection
  • Redundant output
  • Customisable housing 

In addition to the above products we also have some exciting new designs we are working on which will be available soon, they are;

HTP11 – A new product we are currently developing in house, to provide customers with a programmable output specific for their application.

Features of the HTP11 range;

·         Simple flange mounting (available in PCD 32mm & 38mm)

·         6mm Diameter and 8mm Diameter shaft versions available

·         Based on proven Hall Effect Technology as seen in our other products

·         Long life – extremely robust

·         IP68 Protection (minimum) [expected IP69K]

·         Redundant Output

·         Wider Operating Temperature range -40°C to +125°C (short term 150°C) – a lower temp option will also become available

Contact us for more information about this product +44(0)1327 351004

MXPx Range – Following on from development of our CMRx range, we realised the need for miniaturisation as applications had increasing spatial constraints / importance on weight saving. Therefore we are currently developing over moulded solutions and redefining the package size, to still feature the same mechanical life and electrical characteristics with the higher IP Rating that is found on our XPD/XPK products.

Featured of the MXPx range;

·         Simple flange mounting (available in PCD 21mm)

·         Female D-Shaft/ Male D- Shaft/ 2 piece PUCK design

·         Based on proven Hall Effect Technology as seen in our other products

·         Long life – extremely robust

·         IP68 Protection (minimum) [expected IP69K]

·         Redundant Output

·         Wider Operating Temperature range -40°C to +125°C (short term 150°C) – a lower temp option will also become available

·         Better availability and lower lead times expected.

Contact us for more information about this product +44(0)1327 351004

Throttle Position Sensors from our Suppliers

We also have a range of throttle position sensors from our suppliers 

The SP2800 series is a potentiometer throttle sensor offering;

·         Long life

·         IP67

·         Excellent linearity

·         Elastomer damped wipers

·         Plastic or aluminium housing options

·         Simple Mounting

We are able to offer complete harnessing services including alternative cable lengths, additional sleeving or custom connector or boot.  

SP2846 - part of the SP2800 series with a duraplast housing 

SP2890 - also part of the SP2800 series with an aluminium housing  

If you would like any more information on throttle position sensors or would like to talk through your application please contact us. 

For more information please contact: Email: sales@variohm.com Tel:+44 (0) 1327 351004 Fax: +44 (0) 1327 353564


Article date: 16 / Aug / 2019

Throttle Position Sensor

Published by: Variohm EuroSensor

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