System and method for locomotive adhesion control
AssigneeGeneral Electric Company
InventorsJeremy Thomas McGarry, Somakumar Ramachandra-Panicker, Ajith Kuttannair Kumar, Venkatarao Ryali, Bret Dwayne Worden, Jeffrey Louis Daigle, Paul Kenneth Houpt
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Abstract
A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle. The traction control system includes means for determining speed of the wheel, means for determining tractive effort of the wheel and a control circuitry for controlling drive signals to the motor based upon the wheel speed and tractive effort.
Claims30
A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle, comprising:
- means for determining speed of the wheel;
- means for determining tractive effort of the wheel;
- and
- control circuitry for controlling drive signals to the motor based upon the wheel speed and tractive effort.
A traction control system for controlling an electric traction motor drivingly coupled to an axle-wheel set including two wheels joined by an axle oVa tractive vehicle, comprising:
- means for determining speed of each wheel;
- means for determining tractive effort of each wheel;
- and
- control circuitry for controlling drive signals to the motor based upon the wheel speeds and tractive efforts;
- wherein the means for determining tractive effort includes an estimator coupled to a motor speed sensor and to a motor torque sensor and configured to estimate a tractive effort value or wheel speed value or a torsional vibration value based upon the speed, the torque, or a combination thereof.
A traction control system for controlling a plurality of electric traction motors drivingly coupled to wheels of a tractive vehicle, comprising:
- means for determining speed of each wheel;
- means for determining tractive effort of each wheel;
- and
- control circuitry for controlling drive signals to the motors based upon the wheel speeds and tractive efforts.
A method for controlling a traction motor of a propulsion system of a tractive vehicle, comprising:
- determining speed of the wheel;
- determining tractive effort of the wheel;
- and
- applying drive signals to the motor based upon the wheel speed and tractive effort.
A method for controlling a plurality of electric traction motors drivingly coupled to wheels of a tractive vehicle, comprising:
- determining speed of each wheel;
- determining tractive effort of each wheel;
- and
- applying drive signals to each motor based upon the wheel speed and tractive effort.
A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle, comprising:
- a machine readable medium;
- and
- code stored on the machine readable medium including instructions for determining speed of the wheel, for determining tractive effort of the wheel, and for controlling drive signals to the motor based upon the wheel speed and tractive effort.
A traction control system for controlling a plurality of electric traction motors drivingly coupled to wheels of a tractive vehicle, comprising:
- a machine readable medium;
- and
- code stored on the machine readable medium including instructions for determining speed of each wheel, for determining tractive effort of each wheel, and for controlling drive signals to the motors based upon the wheel speeds and tractive efforts.
Dependencies are inferred from the claim text.