Patent Document ID: 8886408
Application ID: 13361306
Patent Status: 1

Claim One:
1. A control method for a steering system of an automotive vehicle, said control method comprising: providing an ECU storing a plurality of steering MAPs; providing an electric motor in association with said steering system, wherein a current supplied to said motor is adjusted based upon the selection of a particular steering MAP; wherein upon change from a first MAP to a second MAP, MAP blending is performed according to the following parameters: rising rate (RR) of the second MAP equals 100%/time in milliseconds required to complete transition to the second MAP; falling rate (FR) of the first MAP equals [(X)/((100%−Y)/RR)], wherein X is the existing blend percentage of the first MAP and Y is the existing blend percentage of the second MAP; and wherein the first and second MAPs are blending at the time a third MAP is selected.