| 摘要 |
An automatic steering system for an agricultural vehicle comprises a steerin g actuator operative to steer the vehicle in response to a steering signal, and a steering wheel operative to generate and send a manual steering signal to the steering actuator when the steering wheel is fumed. A microprocessor is operative to generate and send an automatic steering signal to the steering actuator. A global positioning sensor is operative to determine a sensed location of the vehicle and send a corresponding location signal to the microprocessor, and a gyroscope is operative to determine lateral movement of the vehicle and send a corresponding movement signal to the microprocesso r. The microprocessor receives the location signal and the movement signal and compares the sensed location and lateral movement with a desired vehicle path and generat es the automatic steering signal. The steering actuator steers the vehicle in response to one of the steering signals.
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