Powertrain system having lockable differential
First Claim
1. A powertrain system for a mobile machine, comprising:
- a power source;
a plurality of traction devices;
a differential operatively connecting an output of the power source with the plurality of traction devices;
a manual input device movable by an operator to generate a first signal indicative of a desire to lock the differential;
at least one sensor configured to generate a second signal indicative of a parameter of the mobile machine, wherein the mobile machine is a scraper having a tractor connected to pull a bowl; and
a controller in communication with the at least one sensor, the manual input device, and the differential, the controller being configured to inhibit locking of the differential based on the first signal when the second signal indicates the parameter deviating from an acceptable range.
1 Assignment
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Accused Products
Abstract
A powertrain system for a mobile machine is disclosed. The powertrain system may have a power source, a plurality of traction devices, and a differential operatively connecting an output of the power source with the plurality of traction devices. The powertrain may also have a manual input device movable by an operator to generate a first signal indicative of a desire to lock the differential, at least one sensor configured to generate a second signal indicative of a parameter of the mobile machine, and a controller in communication with the at least one sensor, the manual input device, and the differential. The controller may be configured to inhibit locking of the differential based on the first signal when the second signal indicates the parameter deviating from an acceptable range.
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Citations
20 Claims
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1. A powertrain system for a mobile machine, comprising:
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a power source; a plurality of traction devices; a differential operatively connecting an output of the power source with the plurality of traction devices; a manual input device movable by an operator to generate a first signal indicative of a desire to lock the differential; at least one sensor configured to generate a second signal indicative of a parameter of the mobile machine, wherein the mobile machine is a scraper having a tractor connected to pull a bowl; and a controller in communication with the at least one sensor, the manual input device, and the differential, the controller being configured to inhibit locking of the differential based on the first signal when the second signal indicates the parameter deviating from an acceptable range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile machine, comprising:
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a frame; a plurality of traction devices configured to support the frame and propel the mobile machine; an engine supported by the frame; a transmission supported by the frame and coupled to the engine; a differential disposed between the transmission and the plurality of traction devices; wherein the mobile machine is a scraper having a tractor connected to pull a bowl; a manual input device configured to generate a first signal indicative of a desire to lock the differential; at least one speed sensor associated with the plurality of traction devices and configured to generate a second signal; and a controller in communication with the manual input device, the at least one speed sensor, and the differential, the controller being configured to inhibit locking of the differential based on the first signal when the second signal indicates a speed difference between the plurality of traction devices deviating from an acceptable range.
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14. A method of operating a mobile machine, comprising:
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generating a power output; directing the power output through a differential to a plurality of traction devices; receiving a manual input indicative of a desire to lock the differential; detecting a parameter of the mobile machine, wherein the mobile machine is a scraper having a tractor connected to pull a bowl; and selectively inhibiting locking of the differential based on the manual input when the parameter deviates from an acceptable range. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification