Monitoring the pressure during the fuel combustion process in a diesel engine has always been a dream of automotive engineers. In this way, you get an insight into what is happening in the engine and you can optimize its operation.
There were many available solutions on the market but none was precise enough. Hidria´s engineers accepted the challenge and developed a one-of-a-kind solution.
Meet PSG Optymus, a glow plug with an integrated pressure sensor.
With this solution, Hidria has upgraded the pressure measurement. We built a piezoelectric sensor around the heater and made it much more accurate and responsive.
PSG is mounted in the combustion chamber and has two main functions:
The measured pressure signal is transferred to the engine control unit and used for closed-loop control of fuel injection.
Key benefits for vehicle owners:
It´s obvious that glow plugs are an essential part of modern diesel engines. For example, each new Volkswagen 2.0 TDI diesel engine (EA 288 Evo) has one Hidria PSG and three ordinary glow plugs.
And yes, they are also available for the aftermarket under part number:
PSG Optymus – H70 001
Glow plugs – H1 339
Search for cross-references or vehicle applications in our online catalog.