Operation of wheeled work machine
First Claim
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1. A method of controlling a hydrostatic motor to control speed of travel of a wheeled work machine having an electronic controller, an acceleration operator input mechanism operably coupled to the electronic controller, and a deceleration operator input mechanism operably coupled to the electronic controller, comprising:
- sensing movement of the acceleration operator input mechanism from a first position associated with a first speed set point to a second position;
obtaining a second speed set point associated with the second position; and
if the second speed set point is greater than the first speed set point, controlling the hydrostatic motor to accelerate the machine from the first speed set point to the second speed set point according to a predetermined acceleration curve.
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Abstract
The present invention includes a control system for, or methods of controlling a wheeled work machine to accommodate desired travel control. Acceleration and deceleration inputs are provided, as is a controller for controlling hydrostatic motors to achieve desired acceleration and deceleration profiles.
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Citations
28 Claims
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1. A method of controlling a hydrostatic motor to control speed of travel of a wheeled work machine having an electronic controller, an acceleration operator input mechanism operably coupled to the electronic controller, and a deceleration operator input mechanism operably coupled to the electronic controller, comprising:
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sensing movement of the acceleration operator input mechanism from a first position associated with a first speed set point to a second position;
obtaining a second speed set point associated with the second position; and
if the second speed set point is greater than the first speed set point, controlling the hydrostatic motor to accelerate the machine from the first speed set point to the second speed set point according to a predetermined acceleration curve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A wheeled work machine, comprising:
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a frame;
an operator compartment supported by the frame;
a set of wheels coupled to the frame;
a hydrostatic motor coupled to the wheels to drive the wheels to control speed of travel of a wheeled work machine;
an electronic controller;
an acceleration operator input mechanism operably coupled to the electronic controller; and
a deceleration operator input mechanism operably coupled to the electronic controller;
wherein the controller is configured to sense movement of the acceleration operator input mechanism from a first position associated with a first speed set point to a second position, obtain a second speed set point associated with the second position, and if the second speed set point is greater than the first speed set point, provide a speed signal to the hydrostatic motor to control the hydrostatic motor to accelerate the machine from the first speed set point to the second speed set point according to a predetermined acceleration curve. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification