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Torque converter clutch locking method and low sliding difference adjustment

A torque converter clutch, lock-up technology, applied in the direction of machine/engine, transmission, electrical control, etc.

Active Publication Date: 2008-03-19
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The torque converter is not fully locked

Method used

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  • Torque converter clutch locking method and low sliding difference adjustment
  • Torque converter clutch locking method and low sliding difference adjustment
  • Torque converter clutch locking method and low sliding difference adjustment

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Embodiment Construction

[0016] The following description is exemplary only in nature and does not limit the disclosure, application or use of the invention. It should be understood that corresponding reference numerals indicate corresponding parts and features throughout the drawings. As used herein, the term module refers to an application-specific integrated circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or a group) and memory that executes one or more software or hardware programs, combinational logic circuits , and / or other suitable components that provide the described functions.

[0017] FIG. 1 shows a vehicle 10 including a conventional torque converter system. The engine 12 combusts a mixture of air and fuel to produce drive torque. Air is drawn into the intake manifold 14 through a throttle valve 16 . Throttle valve 16 regulates air flow into intake manifold 14 . Air within the intake manifold 14 is distributed into cylinders 18 . Although only 6 cylinders 18 are...

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Abstract

An engine system includes an engine having an intake manifold and a turbocharger that supplies compressed air to the intake manifold. An engine control module calculates a desired pre-throttle pressure of air before the throttle and calculates a desired manifold air flow into the engine. The engine control module determines a desired pre throttle pressure area based on the desired air per cylinder, desired manifold pressure and RPM and generates control signals to control the engine with the turbocharger.

Description

technical field [0001] The present invention relates to a method and system for controlling a torque converter clutch. Background technique [0002] This part only relates to the background technical information disclosed in the present invention and does not constitute prior art. [0003] Automatic transmissions use fluid clutches known as torque converters to transfer engine torque to the transmission. The torque converter operates by hydraulic pressure provided by compressed fluid in the automatic transmission. The torque converter amplifies the engine's torque and transmits it directly to the transmission. [0004] A conventional torque converter includes a sealed chamber containing a working fluid. The sealed chamber includes a pump (or impeller) driven by the engine, a turbine connected to the output shaft, and a fixed wheel to amplify the torque. As the impeller spins, centrifugal force pushes the compressed fluid outward, spinning the turbine. The fluid ejected ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/14
CPCF02D2200/0406Y02T10/18Y02T10/144F02B37/18F02D41/0007F02D13/0219F02M25/0715F02M26/13Y02T10/12
Inventor M·利夫施兹D·J·贝科克J·R·杜尔佐E·里真A·E·冯左克L·赞德
Owner GM GLOBAL TECH OPERATIONS LLC