Unlock instant, AI-driven research and patent intelligence for your innovation.

Accumulator working volume management and adaptation

An accumulator, transmission technology, applied in the direction of clutch, vehicle sub-unit function, transportation and packaging, etc., can solve problems such as disadvantage, affecting fuel economy and vehicle acceleration, etc.

Inactive Publication Date: 2014-07-02
GM GLOBAL TECH OPERATIONS LLC
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Decoupling of the ICE from the transmission can adversely affect fuel economy and vehicle acceleration

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Accumulator working volume management and adaptation
  • Accumulator working volume management and adaptation
  • Accumulator working volume management and adaptation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] The following description is merely illustrative in nature and in no way restricts the invention and its application or uses. For purposes of clarity, the same reference numbers will be used in the drawings to identify similar elements. As used herein, the phrase at least one of A, B, and C should be taken to mean a logical (A or B or C) using a non-exclusive logical or. It should be understood that steps within a method may be executed in different order without altering the principles of the present disclosure.

[0045] As used herein, the term "module" refers to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated or group) and memory that executes one or more software or hardware programs, Combinational logic circuits or other suitable components providing the described functionality.

[0046] figure 1 In , an exemplary dual clutch transmission (DCT) drivetrain (shift sequence) system 10 and corresponding DCT co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the management and adjustment of the working volume of an accumulator. A dual clutch transmission (DCT) control module includes a pressure determination module that determines a measured pre-fill pressure of an accumulator. A motor control module determines an actual pre-fill pressure based on the measured pre-fill pressure, a stored previous pre-fill pressure, and an ambient temperature, and controls a pump motor based on the actual pre-fill pressure.

Description

[0001] This application claims priority to US Provisional Application No. 61 / 327,357, filed April 23, 2010. The content of the aforementioned application is incorporated herein by reference. technical field [0002] The present disclosure relates to dual clutch transmission control systems. Background technique [0003] The background description provided herein is for the purpose of generally illustrating the disclosure. Nothing that the inventors have described in this Background section, nor aspects of their description that would otherwise be considered prior art at the time of writing, is neither specifically nor implicitly intended to impair prior art status of the present disclosure. technology. [0004] A manual transmission drivetrain includes an internal combustion engine (ICE), a clutch, and a manual transmission. The clutch engages the flywheel on the ICE and transfers the engine's torque output to the manual transmission. When a vehicle operator manually shi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02
CPCF16D48/0206F16D2500/5102F16D2500/3122F16H61/0021F16D2048/0293F16H2061/0034F16D48/066B60Y2400/14F16D2048/0203F16D2500/30405F16H61/688F16D2048/0266F16D2500/3024F16D2500/1026F16D2048/0245F16D2500/30803
Inventor H·王S·利贝里T·伯恩德特森
Owner GM GLOBAL TECH OPERATIONS LLC