| abstract |
A control system for a friction bypass clutch for a torque converter that forms a part of an infinitely variable transmission in a vehicle driveline having an internal combustion engine including closed loop electronic controllers for coordinated control of the speed ratio of the transmission and the rate of engagement of the torque converter bypass clutch so that the resulting turbine speed will cause the vehicle engine to operate at an ideal speed and throttle setting that will achieve maximum brake specific fuel consumption wherein the time required for reaching the ideal speed is longer than the time required to complete engagement of the bypass clutch, thus effecting smooth clutch engagement with reduced energy absorption. |