The subject matter of the present invention relates generally to a vehicle that has axles with tires mounted thereon with at least one axle that is a lift axle, and more specifically, to a method that optimizes the effective tire rolling resistance by adjusting the load on the tires, resulting in an improvement in the fuel economy of the vehicle. According to one embodiment, the method takes into consideration the rolling resistance characteristics of the tires placed onto the axles of the vehicle and provides an algorithm for optimizing their rolling resistance by raising or lowering the lift axle.

A method of automatically applying damping force interventions for dynamic weight balancing in a suspension system of a vehicle may include receiving ride height information associated with respective individual wheels of the vehicle and vehicle attitude information from vehicle sensors, determining, based on the ride height information and the vehicle attitude information, whether a trigger event has occurred, and generating a first damping intervention signal to change a damping force applied by a first selected adjustable damper responsive to determining that the trigger event has occurred. The first selected damper may be one of a plurality of adjustable dampers associated with respective ones of the individual wheels of the vehicle. The first selected adjustable damper may be associated with only one of a pair of rear wheels of the vehicle.

An agricultural vehicle includes a chassis, a plurality of ground-engaging elements configured to support the chassis above a ground surface, and a plurality of support assemblies supporting the chassis on the ground-engaging elements. Each support assembly includes a height-adjustment actuator. A controller is configured to adjust the height-adjustment actuators independently of one another and transfer a load from a first ground-engaging element to other ground-engaging elements. A method of operating an agricultural vehicle includes receiving a command to transfer a load from a first ground-engaging element to other ground-engaging elements, adjusting at least one height-adjustment actuator, and transferring a load from the first ground-engaging element to the other ground-engaging elements.

A first active stabilizer is installed on a main drive wheel side, and a second active stabilizer is installed on a subordinate drive wheel side. A control device performs load distribution control when a difference in actual driving force between left and right sides of a vehicle exceeds a threshold value during acceleration. A high- side is one of the left and right sides with a greater actual driving force, and a low- side is another of the left and right sides. The load distribution control includes a first mode performed when a vehicle speed is equal to or lower than a first reference value. In the first mode, the control device actuates the first active stabilizer in a direction to lift up the high- side and actuates the second active stabilizer in a direction to lift up the low- side.

A system and apparatus that reduces tire scrub on a truck and or trailer during turns. The system minimizes the redistribution of the load among the tires thereby spreading the load of the trailer or truck among the tires avoiding unnecessary overloading. The system operates without operator intervention and is capable of operating automatically on trailers, without control signals from the truck.

An air suspension system for a vehicle comprises four corner assemblies, wherein one corner assembly is located at a suspension position corresponding to each of the wheel corners for the vehicle. An air supply unit including a compressor, and an ECU are connected to the corner assemblies. The air supply unit is capable of independently adjusting the corner assemblies from one another. A sensor for measuring jounce/rebound travel for a wheel is associated with each of the corner assemblies and the air suspension system is operable adjust the air pressure at each of the four corner assemblies to provide optimized traction for the vehicle when at least one of the wheels has a predetermined amount of travel.

In a pneumatically sprung vehicle (1) with a front steering axle (A), one rear drive axle (TA) and one trailing axle (SA), traction is controlled by an air suspension system (36), having a pressure ratio control mode maintaining a parametrised ratio of air pressures in supporting bellows (2, 4) of the drive axle (TA) compared to air pressures in supporting bellows (3, 5) of the trailing axle (SA); a relieve loading of trailing axle mode checking whether relieving of the loading of the trailing axle (SA) is possible without overloading the drive axle (TA); and an optimum traction control mode increasing the pressure in the supporting bellows (2, 4) of the drive axle (TA) and reducing the pressure in the supporting bellows (3, 5) of the trailing axle (SA) without exceeding the maximum permissible axle load of the drive axle (TA) while maintaining residual pressure of the trailing axle (SA).

An agricultural vehicle includes a chassis, a plurality of ground-engaging elements configured to support the chassis above a ground surface, and a plurality of support assemblies supporting the chassis on the ground-engaging elements. Each support assembly includes a height-adjustment actuator. A controller is configured to adjust the height-adjustment actuators independently of one another and transfer a load from a first ground-engaging element to other ground-engaging elements. A method of operating an agricultural vehicle includes receiving a command to transfer a load from a first ground-engaging element to other ground-engaging elements, adjusting at least one height-adjustment actuator, and transferring a load from the first ground-engaging element to the other ground-engaging elements.

The subject matter of the present invention relates generally to a vehicle that has axles with tires mounted thereon with at least one axle that is a lift axle, and more specifically, to a method that optimizes the effective tire rolling resistance by adjusting the load on the tires, resulting in an improvement in the fuel economy of the vehicle. According to one embodiment, the method takes into consideration the rolling resistance characteristics of the tires placed onto the axles of the vehicle and provides an algorithm for optimizing their rolling resistance by raising or lowering the lift axle.

A computer system for performing an axle load adjustment action of vehicle axle of a vehicle is provided. The computer system including processing circuitry is configured to obtain tire data, and obtain at least one adjustment parameter, wherein at least one adjustment parameter is requirement data pertaining to the weight of the vehicle, axle load requirements of the vehicle, and the legal requirements for the road on which the vehicle is or will be travelling, determine an axle load adjustment action based on at least one adjustment parameter and based on tire data, and execute said axle load adjustment action, wherein the axle load adjustment action includes an temporarily increase of the load of the at least one axle of the vehicle.