Systems and methods for controlling slip of vehicle drive members
First Claim
1. A system for controlling slip of vehicle drive members, the system comprising:
- a power train includinga plurality of drive members, anda hydraulic transmission configured to supply torque to at least one of the drive members,wherein a magnitude of the torque is related to fluid flow in the hydraulic transmission; and
a controller in communication with the hydraulic transmission to control the fluid flow in the hydraulic transmission,wherein the controller controls slip of the at least one drive member based on a signal indicative of a steering command and a signal indicative of a parameter related to pressure, wherein the controller limits a pressure of the hydraulic transmission at or below a dynamic pressure set point determined from the signal indicative of the steering command and the signal indicative of the parameter related to pressure.
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Accused Products
Abstract
A system for controlling slip of vehicle drive members is disclosed. The system includes a power train including a plurality of drive members and a hydraulic transmission configured to supply torque to at least one of the drive members. A magnitude of the torque is related to fluid flow in the hydraulic transmission. The system further includes a controller configured to control the fluid flow in the hydraulic transmission. The controller is configured to receive a signal indicative of a steering command and a signal indicative of a parameter related to pressure in the hydraulic transmission. The controller is further configured to control slip of the at least one drive member based on the signal indicative of a steering command and the signal indicative of a parameter related to pressure.
60 Citations
20 Claims
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1. A system for controlling slip of vehicle drive members, the system comprising:
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a power train including a plurality of drive members, and a hydraulic transmission configured to supply torque to at least one of the drive members, wherein a magnitude of the torque is related to fluid flow in the hydraulic transmission; and a controller in communication with the hydraulic transmission to control the fluid flow in the hydraulic transmission, wherein the controller controls slip of the at least one drive member based on a signal indicative of a steering command and a signal indicative of a parameter related to pressure, wherein the controller limits a pressure of the hydraulic transmission at or below a dynamic pressure set point determined from the signal indicative of the steering command and the signal indicative of the parameter related to pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19)
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13. A vehicle comprising:
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a power train including; a power source, a plurality of drive members, and a hydraulic transmission operably coupling the plurality of drive members to the power source and configured to supply torque to at least one of the drive members, wherein a magnitude of the torque is related to fluid flow in the hydraulic transmission; and a controller in communication with the hydraulic transmission to control the fluid flow in the hydraulic transmission, wherein the controller controls slip of the at least one drive member based on a signal indicative of a steering command and a signal indicative of a parameter related to pressure, wherein the controller limits a pressure of the hydraulic transmission at or below a dynamic pressure set point determined from the signal indicative of the steering command and the signal indicative of the parameter related to pressure. - View Dependent Claims (14, 15, 16, 20)
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17. A method for limiting slip of drive members of a vehicle, the method comprising:
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receiving a signal indicative of a parameter related to pressure in a transmission of the vehicle; receiving a signal indicative of a steering command of the vehicle; and controlling fluid flow in the transmission based on the signal indicative of a parameter related to pressure in the transmission and the signal indicative of a steering command, such that the slip of at least one of the drive members is limited, wherein controlling fluid flow in the transmission further includes determining a dynamic pressure set point from the signal indicative of the steering command and the signal indicative of the parameter related to pressure, wherein the dynamic pressure set point varies with the signal indicative of the steering command, and wherein controlling fluid flow in the transmission further includes limiting a pressure of the hydraulic transmission at or below the dynamic pressure set point. - View Dependent Claims (18)
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Specification