Patent ID: 6421595
Filing Date: 2002-07-16
Classification: B60T,B60W,F16H

Abstract:
A method to improve automotive stability control using an automotive stability computer with a continuously variable automatic transmission (CVT), said continuously variable transmission comprising at least one variator and an electronic transmission control computer to change a transmission ratio, comprising the steps of:passing a signal having an indication of an active engagement to an electronic transmission control, coupling the automotive stability computer with the electronic transmission control using one of a controller area network (CAN) data line and a direct signal line, detecting an activation of an active automotive stability control from said signal, freezing an actual variator ratio (iV_ist) after said signal passes by the electronic transmission control, showing a termination of the actual variator ratio freezing by a second automotive stability computer signal, detecting an end of the activation of the automotive stability control using said second signal, comparing the actual variator ratio to a strategy ratio to determine a divergence, applying a transmission function to the divergence to ensure a comfortable return to the strategy ratio.