Powertrain Solutions

ARi developed an electric wastegate actuator for small gasoline passenger vehicles. Compared to pneumatic, electric actuation of the turbocharger wastegate enables precise control of various exhaust and turbo parameters leading to higher power density for smaller engines and reduced fuel consumption. Our electric actuator manages the engine boost pressure and turbo blade speed very accurately and responds rapidly during transient engine events. When the vehicle operator requests high acceleration, the actuator’s large static torque prevents air leakage enabling instantaneous boost pressure build-up. Because the actuator controls the wastegate independent from system pressure, reduced exhaust emissions and fuel consumption can be achieved through advanced engine control strategies. ARi has successfully passed several design verification tests validating the lifetime and robustness of our actuator. We are excited to partner with automotive suppliers, as they push the boundaries of the next generation engines.