Are turbos electronically controlled?
It is worth noting that virtually all modern factory turbocharged cars, the same cars with long warranty periods, implement electronic boost control. Manufacturers such as Subaru, Mitsubishi and Saab integrate electronic boost control in all turbo model cars.
How are turbos controlled?
By controlling and limiting the speed of the turbine, the wastegate regulates the boost pressure provided by the turbocharger. By preventing the boost pressure from rising indefinitely, the wastegate protects the turbocharger and the engine from damage.
How does the turbo charger control module work?
In a fully functional system, the adjustments to the turbo charger vanes are seamless due to the constant communication between the PCM, turbocharger control module, and the turbo turbine speed or pressure sensor.
What are the functions of a turbocharger and turbine?
A turbocharger consists of a compressor and a turbine connected by a common shaft. The exhaust-gas-driven turbine supplies the drive energy for the compressor. Compressor
How is the diaphragm controlled in a turbocharger?
This control pressure is lower than the boost pressure and generated by a proportional valve. This ensures that the diaphragm is subjected to the boost pressure and the pressure at the compressor inlet in varying proportions. The proportional valve is controlled by the engine electronics.
Why do you need a turbo control system?
The driveability of passenger car turbo engines must meet the same high requirements as naturally aspirated engines of the same power output. That means, full boost pressure must be available at low engine speeds. This can only be achieved with a boost pressure control system on the turbine side.
What makes up the turbine in a turbocharger?
A turbocharger is made up of two main sections: the turbine and the compressor. The turbine consists of the turbine wheel (1) and the turbine housing (2).
Is there an aftermarket turbocharger control unit?
However, there are aftermarket VGT control units available, and some high-end aftermarket engine management systems can control VGTs as well.
How does a flexible turbocharger control system work?
When compared with purely pneumatic control, which can only function as a full-load pressure limiter, a flexible boost pressure control allows an optimal part-load boost pressure setting. This operates in accordance with various parameters such as charge air temperature, degree of timing advance and fuel quality.
How does the wastegate work in a turbocharger?
Every turbocharger has a wastegate—a pressure-actuated port in the turbine housing that allows exhaust to exit directly without passing through the turbine. Without a wastegate, the boost pressure could rise high enough to damage the engine.