Patent ID: 8155850
Filing Date: 2012-04-10
Classification: F16D

Abstract:
1. A system for controlling a flow of hydraulic fluid between a hydraulic actuator and a torque transmitting device, the system comprising: a position sensor in communication with the hydraulic actuator and operable to detect a position of the hydraulic actuator; a temperature sensor in communication with the hydraulic fluid and operable to detect a temperature of the hydraulic fluid; a flow control device including: a controller in communication with the position sensor, the temperature sensor, and the electronic actuator of the flow control device, the controller having memory for storing control logic, the control logic having a first control logic for receiving a data signal from the position sensor indicative of a position of the hydraulic actuator, a second control logic for determining a rate of hydraulic actuator movement, a third control logic for comparing the rate of hydraulic actuator movement to a threshold, a fourth control logic for receiving a data signal from the temperature sensor indicative of a temperature of the hydraulic fluid, and a fifth control logic for sending a control signal to the electronic actuator in order to open or close the electronic actuator based on the temperature of the hydraulic fluid and the comparison of the rate of hydraulic actuator movement to the threshold.