B - Operations – Transporting – 62 – D
Patent
B - Operations, Transporting
62
D
B62D 6/00 (2006.01) A01B 69/04 (2006.01) B62D 6/04 (2006.01) G05D 1/02 (2006.01) B60W 30/10 (2006.01)
Patent
CA 2550178
An apparatus and method for automatically steering a vehicle with hydrostatic steering is provided. The vehicle has a right hydraulic motor and a left hydraulic motor connected to right and left drive wheels. respectively. A pressurized hydraulic fluid source supplies a hydraulic fluid flow to the hydraulic motors, driving the wheels. A control valve system can divert a portion of a hydraulic fluid flow to either the right or left hydraulic motor, in response to a control signal from a control system, causing the hydraulic motor to slow the rotation of the connected wheel, turning the vehicle. The vehicle is automatically steered by the control system determining a steering direction required to steer the vehicle and causing a portion of a hydraulic fluid flow to a hydraulic molar driving a wheel of the vehicle to be diverted, slowing the wheel and steering the vehicle.
Accutrak Systems Limited
Macpherson Leslie & Tyerman Llp
LandOfFree
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