Control module
AssigneeEaton Corporation
InventorsMichael J. Huggins, David L. Wadas, Alan C. Stine, Joseph D. Reynolds
Life of this patent
Estimating the term…
Abstract
A control module assembly (200) for mounting as a unit to the housing (116) of a compound transmission (110). The module assembly includes a module housing (202) defining electric (207) and fluid (208) connectors and having an interior containing a position sensor (218) interacting with a transmission shift shaft (188), cavities (212 and 214) defining auxiliary section actuator piston cylinders (204B and 206B), solenoid control valves, a printed circuit board, and various interior electric and fluid conduits.
Claims15
A control module assembly for one of a range, splitter and combined range-and-splitter compound transmission having a main section shifted by a movable shift shaft and an auxiliary section shifted by a first fluid-actuated piston device, said transmission contained within a transmission housing including a front wall portion, a rear wall portion and a generally tubular gear-retaining portion, said housing defining a first bore through said rear wall portion for receiving an end of said shift shaft and a second bore through said rear wall portion partially defining a cylinder for said first fluid-actuated piston device, said control module assembly comprising:
- a generally cup-shaped module housing defining an interior cavity, said module housing mounted to the exterior of said rear end wall portion and allowing said assembly to be mounted to said transmission housing as a unit;
- a position sensor in said interior cavity for receipt of the rear end of said shift shaft and for providing signals indicative of at least one of the rotational and axial position of said shift shaft;
- a first forwardly-opening, cup-shaped cavity in said interior cavity for registration with said second bore to define said cylinder for said first fluid-actuated piston device;
- a pressurized fluid connector accessible from the exterior of said module housing;
- an electrical connector accessible from the exterior of said module housing;
- a plurality of fluid conduits connected to said fluid connector in said interior cavity;
- and
- a plurality of electrical conduits connected to said electrical connector in said interior cavity.
One of a vehicular range, splitter and combined range-and-splitter compound transmission (110) having a main section (112) shifted by a movable shift shaft (188) and an auxiliary section (114) shifted by a first fluid-actuated piston device (206), said transmission contained within a transmission housing (116) including a front wall portion (116A), a rear wall portion (116B) and a generally tubular gear-retaining portion, said housing defining a first bore (208) through said rear wall portion for receiving an end of said shift shaft and a second bore (206A) through said rear wall portion partially defining a cylinder (206B) for said first fluid-actuated piston device, and a control module assembly (200), said control module assembly mounted to said transmission housing as a unit and comprising:
- a generally cup-shaped module housing (202) mounted to the exterior of the rear end wall portion defining an interior cavity (205) and allowing said assembly to be mounted to said transmission housing as a unit;
- a position sensor (216) in said interior cavity for receipt of a rear end of said shift shaft and for providing signals indicative of at least one of the rotational and axial position of said shift shaft;
- a first forwardly-opening, cup-shaped cavity (214) in said interior cavity for registration with said second bore to define said cylinder for said first fluid-actuated piston device;
- a pressurized fluid connector (208) accessible from the exterior of said module housing;
- an electrical connector (207) accessible from the exterior of said module housing;
- a plurality of fluid conduits connected to said fluid connector in said interior cavity;
- and
- a plurality of electrical conduits connected to said electrical connector in said interior cavity.
Dependencies are inferred from the claim text.