Torque converter clutch apply adapt and quality apply detection converter slip acceleration

Abstract

The invention relates to torque converter clutch apply adapt and quality detection converter slip acceleration, particularly discloses a torque converter clutch slip rate monitoring system includes a slip rate calculation module that receives a raw slip speed of a torque converter clutch and that calculates torque converter clutch slip acceleration based on the raw slip speed. A torque converter clutch slip rate monitoring module detects deviation of the slip acceleration from a predetermined range during a pulldown of the torque converter clutch.

Description

technical field [0001] [1] The present disclosure relates to monitoring the performance of a torque converter clutch in a motor vehicle. Background technique [0002] [2] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] [3] from figure 1 Initially, vehicles conventionally include a power plant, such as an internal combustion engine 102 , that produces drive torque. Drive torque is transmitted through the powertrain and transmission system 104 to drive wheels 106 which propel the vehicle along the road surface. Powertrain 104 generally includes automatic transmission 108 coupled to engine 102 through a torque converter 110 , which is a type of fluid coupling that allows engine 102 to rotate somewhat independently of transmission 108 . [0004] [4] Now turn to figure 2 , a typical torque converter 110 consists of a turbine 200, a pump 202, an idler 204, and transmission fluid....

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Problems solved by technology

This increases the spring tension acting on the TCC regulator valve 308, which in turn increases the regulated TCC apply pressure

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