Patent ID: 8095299
Filing Date: 2012-01-10
Classification: B60L,B60W,F02D,F02N,Y02T

Abstract:
1. A method for starting a vehicle engine comprising: determining a throttle angle command output based on at least one of airflow command input, barometric pressure, accelerator pedal position and engine coolant temperature; determining an ignition attempt number by counting the number of vehicle engine start attempts before an ignition reset or successful engine start; adjusting the throttle angle command output based on the ignition attempt number such that a throttle angle is increased as the ignition attempt number increases; providing the throttle angle corresponding to the throttle angle command output; determining a catalyst temperature; further adjusting the throttle angle command output based on the catalyst temperature and the ignition attempt number; further adjusting the throttle angle command output based on an adder; calculating a new adder based on a previous airflow measurement; and storing the new adder as the adder.