Patent ID: 8301347

Claim:
A control for a torque transmitting mechanism of a vehicle transmission, comprising: a supply of hydraulic transmission fluid, an electro-hydraulic actuator in fluid communication with the fluid supply, the electro-hydraulic actuator being configured to provide an output pressure to a torque transmitting mechanism of a vehicle transmission, and an electronic control configured to detect a trim phase of the torque transmitting mechanism, and during the trim phase, send a first pressure command to the electro-hydraulic actuator when the fluid supply supplies fluid to the electro-hydraulic actuator at a first pressure, send a second pressure command less than the first pressure command to the electro-hydraulic actuator when the fluid supply supplies fluid to the electro-hydraulic actuator at a second pressure less than the first pressure, and send a third pressure command to the electro-hydraulic actuator greater than the second pressure command when the fluid supply supplies fluid to the electro-hydraulic actuator at a third pressure less than the first pressure.