Brake-assist-steering system
First Claim
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1. An off-highway vehicle comprising:
- at least one steered wheel;
a plurality of non-steered wheels;
a plurality of brakes coupled to the plurality of non-steered wheels;
a steering device operably coupled to the at least one steered wheel for steering the at least one steered wheel;
a brake-assist-steering system operably associated with the plurality of non-steered wheels, the brake-assist-steering system including;
a wheel position detector adapted to provide a signal representative of a steered angle of the at least one steered wheel;
a plurality of wheel speed sensors adapted to provide a signal representative of actual wheel speeds of the plurality of non-steered wheels;
a controller in electrical communication with the wheel position detector and the plurality of wheel speed sensors;
wherein responsive to the controller only the brake that is coupled to an inside-non-steered wheel, which is disposed the shortest distance from a center of a turning circle of the vehicle, is actuated when an actual wheel speed of the inside non-steered wheel is greater than a theoretical wheel speed of the inside non-steered wheel and is released when the actual wheel speed of the inside non-steered wheel is less than or equal to the theoretical wheel speed of the inside non-steered wheel.
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Abstract
A method of operating a brake-assist-steering system of a vehicle comprises the steps of receiving a signal from a wheel position detector. A theoretical wheel speed for an inside non-steered wheel is computed. A brake operably associated with the inside non-steered wheel is actuated when an actual wheel speed of the inside non-steered wheel is greater than the theoretical wheel speed of the inside non-steered wheel.
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Citations
6 Claims
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1. An off-highway vehicle comprising:
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at least one steered wheel; a plurality of non-steered wheels; a plurality of brakes coupled to the plurality of non-steered wheels; a steering device operably coupled to the at least one steered wheel for steering the at least one steered wheel; a brake-assist-steering system operably associated with the plurality of non-steered wheels, the brake-assist-steering system including; a wheel position detector adapted to provide a signal representative of a steered angle of the at least one steered wheel; a plurality of wheel speed sensors adapted to provide a signal representative of actual wheel speeds of the plurality of non-steered wheels; a controller in electrical communication with the wheel position detector and the plurality of wheel speed sensors; wherein responsive to the controller only the brake that is coupled to an inside-non-steered wheel, which is disposed the shortest distance from a center of a turning circle of the vehicle, is actuated when an actual wheel speed of the inside non-steered wheel is greater than a theoretical wheel speed of the inside non-steered wheel and is released when the actual wheel speed of the inside non-steered wheel is less than or equal to the theoretical wheel speed of the inside non-steered wheel. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification