An arrangement for monitoring and or controlling the driving state of a self-propelled agricultural working machine comprising a variable-position interface for attaching an implement that is provided with a control device. Vehicle-specific data, a position signal regarding the position of the interface, and implement data regarding physical properties of an implement mounted on the interface can be supplied to the control device. The control device is operated to evaluate at least one the driving state of the working machine, taking into consideration the above-mentioned signals and data to control the working machine.

An oscillation brake system and method is disclosed for a vehicle having front and rear vehicle sections coupled with an oscillation joint that allows rotation about an oscillation axis. The system includes front and rear brake sections rigidly coupled to the front and rear vehicle sections, respectively. The rear vehicle section has multiple degrees of freedom of movement relative to front vehicle section. When the oscillation brake is activated the front brake section engages the rear brake section to increase resistance against or prevent rotation about the oscillation axis. The system can also include sensors, and a controller that activates the system based on the sensor readings. The sensors can include accelerometers, pressure, position, speed or other sensors. The oscillation brake can include a hub splined to separator plates and a housing splined to friction plates, where the oscillation brake is activated to force the separator and friction plates together.

A control system for a vehicle for determining whether a trailer is attached to the vehicle, the system being configured to receive an input of pitch data for the vehicle and to determine from the pitch data whether a trailer is attached to the vehicle.

A control system for a vehicle for determining whether a trailer is attached to the vehicle, the system being configured to receive an input of pitch data for the vehicle and to determine from the pitch data whether a trailer is attached to the vehicle.

In one embodiment, a towed implement proximity system, the system comprising: a first device comprising a transceiver, the first device configured to: transmit a signal; receive a first signal at a first angle and a second signal at a second angle responsive to the transmitted signal, the first and second signals comprising first information and second information, respectively, the first and second information each corresponding to respective positional information; and a controller coupled to the first device, the controller configured to determine a relative position in three axes between a first machine and a second machine based on the first and second information.

In one embodiment, a towed implement proximity system, the system comprising: a first device comprising a transceiver, the first device configured to: transmit a signal; receive a first signal at a first angle and a second signal at a second angle responsive to the transmitted signal, the first and second signals comprising first information and second information, respectively, the first and second information each corresponding to respective positional information; and a controller coupled to the first device, the controller configured to determine a relative position in three axes between a first machine and a second machine based on the first and second information.

A drawbar and hitch receiver movement eliminating system has three main embodiments, each very similar and functioning with the same operational characteristics though they vary slightly in structural characteristics. Each embodiment has a means for the drawbar to push outwardly against the face of the receiver to eliminate the typical movement of the drawbar within the receiver caused by the standard clearances between the two, thereby considerably reducing the amplified swaying movement of the trailer that is caused by the small movements of the drawbar within the receiver.

An agricultural implement includes a tow bar assembly for towing the implement with a towing vehicle. The tow bar assembly includes a tow bar mounted to a part of the implement by a first pivot bearing so as to be pivotable about a first vertical axis. The tow bar assembly includes an arm parallel with and spaced vertically below the tow bar. The arm is attached to the part of the implement by a second pivot bearing so as to be pivotable about a second vertical axis that is coaxially located with the first vertical axis.

A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.

A machine includes a frame and an oscillating hitch. A first cylinder couples to a first side of the oscillating hitch and a first side of the frame. A second cylinder couples to a second side of the oscillating hitch and a second side of the frame. A first isolating mechanism couples to the first cylinder and rotates in response to a first rotation of the first cylinder relative to the frame or the oscillating hitch. A first angle sensor senses a first angular displacement of the first isolating mechanism about a first rotational axis. A second isolating mechanism couples to the second cylinder and rotates in response to a second rotation of the second cylinder relative to the frame or the oscillating hitch. A second angle sensor senses a second angular displacement of the second isolating mechanism about a second rotational axis.