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Dynamic range shift actuation

A range, gear ratio technology used in transmissions, engine control, machine/engine, etc.

Inactive Publication Date: 2005-01-05
EATON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Prior art devices with automatic range shift activated by joystick position are not entirely satisfactory because range shift is initiated by joystick actuation of a fixed position sensor or switch, so the joystick position to initiate automatic range shift is fixed of

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0027] A computer-assisted (i.e., microprocessor-based, controller-assisted) vehicular compound mechanical transmission system 10 can be seen by reference to FIGS. / method.

[0028] The system 10 is of the type commonly used in heavy duty vehicles, such as tractor / semi-trailer vehicles and conventional tractors, and includes an engine, typically a diesel engine 12, and a primary friction clutch 14 contained in a clutch housing. Speed ​​compound transmission 16, and drive shaft assembly (not shown). Transmission 16 includes an output shaft 20 that is drivingly connected by a universal joint 24 to a vehicle drive shaft 22 for driving the drive shaft assembly. The transmission 16 is located in the transmission housing and the shift bracket of the shift lever assembly 30 is mounted directly on the housing. The system is equally applicable to remotely mounted shift levers, such as those used in cab-over vehicles.

[0029] figure 2 Shown is the shift pattern for an assisted manu...

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PUM

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Abstract

A control for enhanced shifting in a computer (48) -assisted vehicular compound transmission system having a having a main section (16A) shifted by a manually operated shift lever (31) and a range section (16B) automatically shifted in response to sensing shift lever (31) passing through a predetermined actuation point (AR) in the shift pattern. A position sensor (160) is provided for sensing the position of the shift lever and logic is provided to vary the location of the actuation point (180, 182, 184) for initiating a range shift.

Description

[0001] related application [0002] This application is related to the following co-pending applications, which are assigned in their entirety to EATON Corporation, the assignee of this application: [0003] Serial No. 08 / ____[96-TRN-263], date of dispatch 4 / 1 / 98, titled Range Shift Control [0004] Serial No. 08 / ___[97-TRN-561], mailed 4 / 1 / 98, titled Adaptive Upshifting Dog Clutch Engagement Control [0005] Serial No. 08 / ___[97-TRN-566], dated 4 / 1 / 98, entitled Engine Fuel Supply Control for Accomplishing Gear Shifts in Controller-Assisted Manual Shift Transmissions [0006] The serial number is 08 / __[98-TRN-092], the mailing date is April 1, 1998, and the title is Adaptive Gap Detection [0007] Serial No. 08 / ___[98-TRN-067], dated 4 / 1 / 98, titled Dog Clutch Engagement Control for Auxiliary Manual Splitter Type Transmissions [0008] Serial No. 08 / ___[98-TRN-101], mailed 4 / 1 / 98, titled Adaptive Splitter Actuator Engagement Force Control [0009] Serial No. 08 / 902,603, filed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/04F02D29/00F16H59/04F16H59/40F16H59/42F16H59/70F16H61/02F16H61/18F16H61/70F16H63/44
CPCF16H61/702Y10T74/19251F16H59/40B60W2540/16F16H2059/6823F16H59/70F16H59/044F16H59/42F16H61/18F16H63/44F16H61/682
Inventor J·M·瓦尔克
Owner EATON CORP
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