Electronic Throttle Body

The idea behind this project is to adapt the throttle body of a Formula Student vehicle with an electronic throttle control.

An electronic throttle control offers a multitude of advantages over a traditional throttle body actuated by a cable connected to the accelerator pedal. It allows for the creation of different accelerator maps, it can improve cold starts, automatic throttle blipping and more.

The system has been designed to comply with competition regulations. The design can be adapted to any vehicle. The valve incorporates two return springs as a mechanical safety system.

The new design reuses part of the previous MA22RT throttle body. The updated design incorporates a smaller bellmouth and a different material (Nylon PA12). Additionally, it features a different shaft and block to accommodate the attachment of two position sensors along with a DC electric motor. The motor is connected to a gearbox and, via a 4-bar linkage system, operates the valve shaft. The motor is controlled by a small controller which drives it by a PWM pulse depending on the request. In addition, it has safety systems in case of sensor failure operated by analog electronics.

Finally, the lower mounts of the restrictor duct and the entire assembly have been reduced from 6 bolts to 3. This achieves greater ease in assembling and disassembling the unit.