System and method for estimating a turbine outlet temperature or a turbine inlet temperature based on a wastegate command

摘要

A system according to the principles of the present disclosure includes a boost control module and a temperature estimation module. The boost control module generates a wastegate command signal to control a position of a wastegate and thereby adjust an amount of exhaust gas allowed to bypass a turbine of a turbocharger through the wastegate. The temperature estimation module estimates at least one of a first temperature downstream from the turbine and a second temperature upstream from the turbine based on the wastegate command signal.

主权项

1. A system comprising:
a first electronic circuit configured to generate a wastegate command signal to control a position of a wastegate and thereby adjust an amount of exhaust gas allowed to bypass a turbine of a turbocharger through the wastegate; a second electronic circuit configured to estimate a second temperature upstream from the turbine based on the wastegate command signal; and a third electronic circuit configured to adjust an actuator of an engine based on the second temperature.