A vehicle is proposed having a first axle portion, wherein the first axle portion has a first axle, a second axle portion, wherein the second axle portion has a second axle, a wheel-selective drive torque arrangement, wherein at least one of the axles is designed as an axle influenced by the wheel-selective drive torque arrangement, and a control device, wherein the control device is designed to control the wheel-selective drive torque arrangement in order to convert a steering command into cornering of the vehicle, and an articulated joint, wherein the first and second axle portions are coupled to one another by the articulated joint.

Systems for controlling the speed and direction of vehicles such as tractors, including vehicles that have low to zero turning radius capability. Systems include steering and speed coordination systems that control the direction and speed of rotation of vehicle drive units.

Systems for controlling the speed and direction of vehicles such as tractors, including vehicles that have low to zero turning radius capability. Systems include steering and speed coordination systems that control the direction and speed of rotation of vehicle drive units.

A steering control system adapted for use on a paving machine having one or more wheels and an automatic pivot steer mode. The preferred steering control system comprises a speed sensor adapted to determine a paving machine speed, a steering cylinder adapted to move between a straight forward position and a fully turned position, a steering cylinder sensor adapted to determine a steering cylinder position, a flow sharing valve in fluid communication with one or more of the one or more wheels and adapted to be moved between an open position and a closed position, and a controller adapted to communicate with the speed sensor, the steering cylinder sensor, and the flow sharing valve. The preferred steering control system is adapted to automatically open and close the flow sharing valve. Automatically moving the flow sharing valve between the open position and the closed position.

A steering control system adapted for use on a paving machine having one or more wheels and an automatic pivot steer mode. The preferred steering control system comprises a speed sensor adapted to determine a paving machine speed, a steering cylinder adapted to move between a straight forward position and a fully turned position, a steering cylinder sensor adapted to determine a steering cylinder position, a flow sharing valve in fluid communication with one or more of the one or more wheels and adapted to be moved between an open position and a closed position, and a controller adapted to communicate with the speed sensor, the steering cylinder sensor, and the flow sharing valve. The preferred steering control system is adapted to automatically open and close the flow sharing valve. Automatically moving the flow sharing valve between the open position and the closed position.

A screed apparatus including a main screed having a frame, a screed extension, and an extension apparatus configured to mount the screed extension to the main screed. The extension apparatus includes a first mounting member configured to mount to the main screed and to be movable along a first axis with respect to the main screed. A second mounting member is pivotably mounted to the first mounting member and is configured to pivot between a first orientation and a second orientation about a second axis with respect to the first mounting member. A third mounting member is mounted to the second member and is configured to mount to the screed extension. The third mounting member is further configured to be movable along a third axis with respect to the second mounting member while the second mounting member is in the first orientation or second orientation.

An automatic traction system adapted for use on a paving machine having a steering cylinder, one or more wheels, and a joystick. The preferred automatic traction system has a joystick sensor adapted to determine a joystick position, a steering sensor adapted to determine a steering cylinder position, a speed sensor adapted to determine an actual speed of one or more of the one or more wheels, a valve adapted to be moved between an open position and a closed position and is in fluid communication with one or more of the one or more wheels, and a controller adapted to communicate with the joystick sensor, the steering sensor, the speed sensor, and the valve. The preferred automatic traction system automatically controls the rotational speed of the one or more wheels of the paving machine in the event that one or more of the one or more wheels lose traction.

A zero turning radius mower park brake system includes an over-center pivot member that pivots to a park brake engaged position in response to moving a control arm fully outward, and to a park brake disengaged position in response to moving the control arm fully inward. The control arm is disconnected from the over-center pivot member in the park brake engaged and disengaged positions. An actuator on a lower end of the control arm may contact the over-center pivot member between the park brake engaged and disengaged positions. A biasing spring urges the over-center pivot member to the park brake engaged position and park brake disengaged position.

An electrical passenger car, the electrical passenger car including: at least two electrically driven motors; speed control electronics; and wheels, where the wheels include a first front wheel, a second front wheel, a first back wheel, and a second back wheel, where the first back wheel radius is at least 20% greater than the first front wheel radius, where the speed control electronics control the at least two electrically driven motors to provide a greater torque to the first front wheel than to the first back wheel, and where the electrical passenger car is designed to travel for a greater distance for the same axial to wheel friction energy loss than a similar electrical passenger car having wheels of a smaller radius.

To reduce load on the operator and to establish traveling stability in the steering operation of a construction machine that has a pair of right and left traveling devices, and an engine as a driving power to the right and left traveling devices, a controller is provided which is responsive to a switch for traveling to drive or stop both a right and a left traveling devices. A switch for steering causes the controller to change the direction of travel of the construction machine, and the controller also acts to reduce the engine speed in accordance with the operation amount of the switch for steering.