EP0240901B1
Expired / Lapsed
EP
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Transmission shift control system
Assignee: Eaton Corp
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Filing: 1987-03-31
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Granted: 1990-09-26
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Expires: 2007-03-31
Abstract
No abstract record available.
Inventors
- 👤 Eugene Ralph Braun
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 18:12
CPC Classifications
B; B60; B60W; B60W10/00; B60W10/04; B60W10/06; B60W10/10; B60W10/11; B60W10/111; B60W30/00; B60W30/18; F; F16; F16H; F16H61/00; F16H61/70; F16H61/702; F16H63/00; F16H63/40; F16H63/44; B60W2300/00; B60W2300/12; B60W2300/125; B60W2510/00; B60W2510/06; B60W2510/0638; B60W2510/10; B60W2510/104; B60W2540/00; B60W2540/14; B60Y; B60Y2200/00; B60Y2200/10; B60Y2200/14; B60Y2200/142; F16H59/00; F16H2059/006; F16H59/02; F16H2059/0221; F16H59/36; F16H59/38; F16H59/42; F16H59/68; F16H59/70; Y; Y10; Y10S; Y10S477/00; Y10S477/908; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
178 words
A shift control system for a vehicular transmission having a plurality of groups of forward gear ratios ranging from a first group (41) including a lowest gear ratio to a highest group (44) including a highest gear ratio with each of said groups having a gear ratio manually selectable by an operator and with at least said highest group including a plurality of sequentially related highest gear ratios (11th and 12th), said transmission including actuator means (34) enabling automatic shifting between the highest sequentially related gear ratios of at least said and said control system (16) further including means (30) for sensing at least when one of the sequentially related highest gear ratios of said highest group is manually selected by the operator and operable to enable the actuator means to effect automatic shifting between the sequentially related highest gear ratios within said highest group when one of the sequentially related highest gear ratios within said groups is manually selected by the operator, and with the gear ratios of said first group requiring manual selection by the operator.
Claim 2
Dependent Claim
178 words
A shift control system for a vehicular transmission having a plurality of groups of forward gear ratios ranging from a first group (41) including a lowest gear ratio to a highest group (44) including a highest gear ratio with each of said groups having a gear ratio manually selectable by an operator and with at least said highest group including a plurality of sequentially related highest gear ratios (11th and 12th), said transmission including actuator means (34) enabling automatic shifting between the highest sequentially related gear ratios of at least said and said control system (16) further including means (30) for sensing at least when one of the sequentially related highest gear ratios of said highest group is manually selected by the operator and operable to enable the actuator means to effect automatic shifting between the sequentially related highest gear ratios within said highest group when one of the sequentially related highest gear ratios within said groups is manually selected by the operator, and with the gear ratios of said first group requiring manual selection by the operator.
Claim 3
Dependent Claim
24 words
The control system of claim 1 wherein the transmission is a compound transmission comprising a main transmission, (4) coupled with an auxiliary transmission (6).
Claim 4
Dependent Claim
33 words
The control system of claim 1 including means (38) for rendering said automatic shifting means inoperative and enabling manual shifting amongst all of the transmission gear ratios upon the occurrence of an event.
Claim 5
Dependent Claim
20 words
The control system of claim 3 wherein the event is a signal provided in said control system by the operator.
Claim 6
Dependent Claim
23 words
The control system of claim 4 wherein means are included for assuring the operator that the automatic shifting means has been rendered inoperable.
Claim 7
Dependent Claim
17 words
The control system of claims 3 or 4 including means for providing a record of the event.
Claim 8
Dependent Claim
30 words
The control system of claim 1 including means for limiting engine speed at least for the speed range provided by the highest sequentially related gear ratio within said highest group.
Claim 9
Dependent Claim
36 words
The control system of claim 1 including cruise control means operative to control vehicular speed about a selected value at least within the speed range provided by said sequentially related gear ratios within said highest group.
Claim 10
Dependent Claim
11 words
A vehicular transmission controlled by the control system of claim 1.
References Cited (Backward Citations)
No citation records indexed.
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