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US 2015/0219209 A1Published application
Transmission control device
AssigneePowertrain Control Solutions, LLC
InventorCharles R. Turner
Life of this patent
Estimating the term…
Abstract
An enhanced control system for an electronic automatic transmission enables the transmission to operate in a full neutral idle, a reverse lock-out, and an inching mode. These functions improve the mileage and durability of the operation of the transmission. They also enable the inching mode for use especially in industrial applications.
Claims19
A vehicle, electronic automatic transmission having a plurality of electronic solenoids, the transmission comprising:
- a plurality of electronic solenoids that control a flow of hydraulic fluid,
- wherein the hydraulic fluid in turn actuates the operation of the transmission in both forward and reverse gears;
- an electronic control panel operatively connected to at least one of the electronic solenoids;
- the electronic control panel comprising a manual switch that actuates the flow of incremental, preset amounts of the hydraulic fluid;
- wherein the electronic control panel is adapted to be remote from a driver seat of the vehicle;
- and
- wherein the incremental, preset amounts of hydraulic fluid correspond to predetermined distances of movement of the vehicle.
4 more elements
A vehicle, electronic automatic, modified four-speed transmission comprising:
- a conventional four-speed transmission controlled by two shift solenoids driving the hydraulic actuation therein and as also controlled by a shift lever in the vehicle;
- two electric solenoids, a first electric controller operatively connected to the solenoids and the shift lever, and additional valving modifications incorporated in the conventional four-speed transmission and forming a modified four-speed transmission;
- wherein the modified four-speed transmission forward, neutral and reverse positions are actuated by the shift lever;
- and further wherein the first electric controller and the shift lever interact to activate the transmission into the forward, neutral and reverse positions;
- wherein the first electric controller is operatively connected to the two electric solenoids;
- and
- wherein the first electric controller prevents engagement of the forward and reverse positions in the modified four-speed transmission when vehicle parameters are not compliant with a predetermined safe operation of the transmission.
4 more elements
Dependencies are inferred from the claim text.