A method of setting the rides height of the air springs and air pressures of the tires, including receiving a user selected setting or preprogrammed ride height settings; sensing a ride height of, and air pressure within, each of the air springs; determining the weight of the vehicle based on the sensed ride height and air pressure within each of the air springs; providing specified ride heights for the left and right front and rear air springs; determining specified air pressures for the left and right front and rear tire inflators, based upon the determined weight of the vehicle and selected setting; inflating the left and right front and rear air springs to the specified ride heights; and inflating the left and right front and rear tires to the specified air pressures.

In various aspects, the performance optimization system described herein optimizes vehicle performance through smart alerts communicated to an operator, owner, or fleet manager of a vehicle. When a vehicle characteristic is outside of the target range, a smart alert can be communicated to the user to encourage the user to bring the vehicle characteristic back into a target range. Aspects of the performance optimization system can focus on tire characteristics, which are one type of vehicle characteristic. Exemplary tire characteristics can include tire pressure, tire tread, and tire alignment. In order to generate smart alerts, vehicle information can be gathered from a variety of sources. In particular, information about a tire can be collected from an onboard tire pressure monitoring system, tire mats, or other mechanisms. This information can be analyzed to determine whether vehicle characteristics are inside or outside of a target range for the particular characteristic. When outside the target range, a smart alert is generated.

Example methods and systems for optimizing vehicle ride performance are disclosed herein. An example apparatus includes a calculator to calculate a vertical velocity of a vehicle wheel and a comparer to perform a comparison of the vertical velocity to a threshold. The example apparatus includes a damping force manager to determine a damping force to be generated by a vehicle suspension system based on the comparison and a communicator to transmit a request including the damping force to be generated to the vehicle suspension system.

In various aspects, the performance optimization system described herein optimizes vehicle performance through smart alerts communicated to an operator, owner, or fleet manager of a vehicle. When a vehicle characteristic is outside of the target range, a smart alert can be communicated to the user to encourage the user to bring the vehicle characteristic back into a target range. Aspects of the performance optimization system can focus on tire characteristics, which are one type of vehicle characteristic. Exemplary tire characteristics can include tire pressure, tire tread, and tire alignment. In order to generate smart alerts, vehicle information can be gathered from a variety of sources. In particular, information about a tire can be collected from an onboard tire pressure monitoring system, tire mats, or other mechanisms. This information can be analyzed to determine whether vehicle characteristics are inside or outside of a target range for the particular characteristic. When outside the target range, a smart alert is generated.

A damper control system includes a damper control unit which controls a property of a damper used in a suspension of a vehicle; and a processing unit which accepts feedback data pertaining to behavior of the vehicle measured in the vehicle, applies computational processing specified by executing a machine learning algorithm to the feedback data, and outputs a control variable obtained from the computational processing to the damper control unit. The damper control unit controls the property of the damper on the basis of a control variable used internally within the damper control unit, and replaces the control variable used internally with a new control variable. The new control variable is the control variable output by the processing unit.

A method and apparatus are disclosed for cooling damping fluid in a vehicle suspension damper unit. A damping unit includes a piston mounted in a fluid cylinder. A bypass fluid circuit having an integrated cooling assembly disposed therein is fluidly coupled to the fluid cylinder at axial locations that, at least at one point in the piston stroke, are located on opposite sides of the piston. The cooling assembly may include a cylinder having cooling fins thermally coupled to an exterior surface of the cylinder and made of a thermally conductive material. The bypass channel may include a check valve that permits fluid flow in only one direction through the bypass channel. The check valve may be remotely operated, either manually or automatically by an electronic controller. A vehicle suspension system may implement one or more damper units throughout the vehicle, controlled separately or collectively, automatically or manually.

A bogie positioning system and method for a work machine. The bogie positioning system adapted to selectively engage a wheel of a work machine to a ground surface through a bogie assembly wherein the bogie assembly may have a front wheel coupled to a rear wheel through a bogie coupling mechanism. The bogie coupling mechanism comprising a beam with a rotary joint. The rotary joint allowing the front wheel to rotate about a rotary axis relative to the rear wheel. The beam is coupled to a chassis of the work machine with at least one actuator coupled to the beam. A control unit is in communication with the bogie assembly, a user input interface, and a plurality of sensors, generating command signals to actuate the actuator based on the input signals, thereby selectively engaging the front wheel or the rear wheel with the ground surface.

Methods and systems are provided for diagnosing a shock absorber coupled to a vehicle tire. In one example, a sensor of a tire pressure measurement system coupled inside a tire is used to measure a tire pressure as well as an oscillatory behavior of the tire. A state of health of a shock absorber coupled to the tire is estimated based on the oscillatory behavior.

A control system (300) for controlling an active suspension system (104) of a vehicle (100), the active suspension system comprising suspension actuators (502), the control system comprising one or more controller (301), wherein the control system is configured to: in dependence on an activation signal (904), provide (908) a control signal to the active suspension system to cause the suspension actuators of the active suspension system to repetitively pulse vertical force through wheels (FR, FL, RR, RL) of the vehicle in a controlled pattern determined by the one or more controller, to vary wheel-to-surface contact patch forces, wherein the pattern comprises repetitively pulsing vertical force through at least one of the wheels at a first phase and through at least one other of the wheels at a second phase.

A method and apparatus are disclosed for cooling damping fluid in a vehicle suspension damper unit. A damping unit includes a piston mounted in a fluid cylinder. A bypass fluid circuit having an integrated cooling assembly disposed therein is fluidly coupled to the fluid cylinder at axial locations that, at least at one point in the piston stroke, are located on opposite sides of the piston. The cooling assembly may include a cylinder having cooling fins thermally coupled to an exterior surface of the cylinder and made of a thermally conductive material. The bypass channel may include a check valve that permits fluid flow in only one direction through the bypass channel. The check valve may be remotely operated, either manually or automatically by an electronic controller. A vehicle suspension system may implement one or more damper units throughout the vehicle, controlled separately or collectively, automatically or manually.