Supercharge Your Innovation With Domain-Expert AI Agents!

Acceleration Compensated Valve Controlled Transmission

A technology of transmissions, controllers, used in transmission control, clutches, elements with teeth, etc.

Active Publication Date: 2019-01-04
GM GLOBAL TECH OPERATIONS LLC
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such methods may not be optimal when changing gears during certain driving maneuvers

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
  • Acceleration Compensated Valve Controlled Transmission
  • Acceleration Compensated Valve Controlled Transmission
  • Acceleration Compensated Valve Controlled Transmission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Referring to the drawings, wherein like reference numerals indicate like components in the several views, an example vehicle 10 having a chassis 10C is diagrammatically shown at figure 1 middle. The vehicle 10 includes an internal combustion engine (E) 12 , a transmission (T) 14 coupled to the engine 12 , and a controller (C) 50 . The transmission 14 includes a clutch circuit 25 in fluid communication with a water pump 22 that can draw fluid from a sump 21 . Additional structure of the transmission 14 , omitted for ease of illustration, may include one or more gear sets having ring gears, sun gears, and carrier members. Clutch circuit 25 , also shown diagrammatically for ease of illustration, includes pressure control solenoid (PCS) valve arrangement 26D , a duty cycle control arrangement known in the art to manage pressure within transmission 14 . The term "PCS valve arrangement" as used herein may include the PCS 26 and regulator valve 40 alone, or may include a dir...

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

A vehicle includes an engine, a transmission, and a controller. The transmission includes a pressure control solenoid (PCS) valve arrangement having a PCS and a regulator valve, a friction clutch, and a clutch piston in fluid communication with the regulator valve. The piston is operable to apply clutch pressure to the friction clutch during a transmission shift. The controller is programmed to receive acceleration values ​​describing vehicle lateral acceleration forces and / or vehicle longitudinal acceleration forces, use the received acceleration values ​​to calculate clutch pressure, and use the calculated clutch pressure to control operation of the regulator valve via the PCS. Acceleration values ​​may be determined, or calculated, by one or more accelerometers. Also disclosed is a method for compensating for acceleration in a vehicle having a transmission comprising a friction clutch, a PCS and a regulating valve during control of the regulating valve.

Description

technical field [0001] The present disclosure relates to an acceleration compensated valve controlled transmission. Background technique [0002] Typically, the friction plate clutches of an automatic transmission are applied by clutch pistons, which in turn are actuated by hydraulic fluid pressure. The hydraulic fluid pressure supplied to a given friction plate clutch is tightly regulated by using a regulator valve, which in turn is controlled by a pressure control solenoid (PCS). Normally, clutch pressure is calculated by the TCM rather than measured directly. For example, the transmission control module may multiply the commanded PCS pressure by a calibration gain that is a function of the geometry of the regulator valve on which the PCS pressure acts. However, such methods may not be optimal when changing gears during certain driving maneuvers. Contents of the invention [0003] A vehicle is disclosed herein having an engine, a transmission, and a controller. The t...

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): F16H59/48F16H61/02F16D48/06
CPCF16D48/066F16H59/48F16H61/0251F16D2500/504F16D2500/3109F16D2500/1045F16D2500/1107F16H2061/0209F16H61/0204F16H61/061F16H61/0265F16H61/0021F16H61/0276F16H59/68F16H2059/683B60W2520/125F16H61/0283B60W2520/105
Inventor S·M·哈里斯T·R·斯托克代尔J·H·冈德森
Owner GM GLOBAL TECH OPERATIONS LLC
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com