JP2007333212A5 - - Google Patents

Claims (8)

In the method of shifting the torque converter from the torque conversion mode to the lockup mode,
A plurality of stator blades in the torque converter are fixed in a rotational direction to a non-rotatable stator shaft of the torque converter,
Partially transmitting a torque converter clutch in the torque converter at a first speed ratio between the turbine and the housing to transfer torque from the housing for the torque converter to the turbine in the torque converter;
Disengaging the pump clutch at a second speed ratio between the turbine and the housing, the pump clutch being arranged to transmit torque from the housing to the pump;
A method of transitioning a torque converter from a torque conversion mode to a lock-up mode, wherein the torque converter clutch is fully engaged at a third speed ratio between the housing and the turbine.   The method of claim 1, wherein the first speed ratio is less than a second speed ratio.   A second speed ratio is less than a fourth speed ratio between the housing and the turbine, the fourth speed ratio being associated with a first coupling point between the turbine and the pump; The method of claim 1.   The third speed ratio is greater than a fifth speed ratio between the housing and the turbine, and the fifth speed ratio is associated with a second coupling point between the turbine and the pump. Item 2. The method according to Item 1. A torque converter is connected to the drive unit,
The method further comprises:
Engage the pump clutch completely,
The method of claim 1, comprising accelerating the drive unit to reach a first speed ratio. In the torque converter,
A torque converter clutch arranged to transmit torque from the torque converter housing to the torque converter turbine;
A pump clutch arranged to transmit torque from the housing to the impeller for the torque converter is provided;
A non-rotatable stator with an inner ring is provided,
At least one coupling point between the turbine and the output hub for the torque converter is provided, the coupling point being at least partially aligned radially with the inner ring, Torque converter. A non-rotatable stator shaft is provided,
A thrust washer is provided, the thrust washer being coupled to the inner ring in the rotational direction and coupled to the stator shaft in the rotational direction, and coupling the stator and the stator shaft in the rotational direction. Item 7. The torque converter according to item 6.   The torque converter according to claim 6, wherein the thrust washer is formed by stamping.