A vehicle suspension system is described. The suspension system comprises a first and second suspension dampening component, the second suspension component comprising an air spring. A compact Electronic Suspension Control System is included, and utilizes an integrated ride height sensor system, including a sensor and ride height arm coupled is to the ride height sensor, an air management manifold and solenoids, and a plurality of pneumatic inputs and outputs coupled to the air management manifold, in order to control the pneumatic conditions of the air spring. The system also includes a pneumatic pump and processor for activating the solenoids and pump in response to sensed conditions, or users inputs, in order to dynamically change suspension settings.

An air suspension system includes air suspensions (1, 2) performing vehicle height adjustment in response to supply and discharge of air, a compressor (3) compressing air, a tank (4) storing compressed air, a first passage (6) connecting between the delivery side of the compressor and the tank, and a second passage (7) connecting between the delivery side of the compressor and the air suspensions. A first dryer (10) is provided in the middle of the first passage to dry air flowing through the first passage. A second dryer (11) is provided in the middle of the second passage to dry air flowing through the second passage. Thus, compressed air generated from ambient air sucked in by the compressor can be dried by the second dryer and supplied directly into the air chambers of the air suspensions.

A suspension control system can include a chassis and a suspension component operably coupled with the chassis. A boom assembly can be operably coupled with the chassis. One or more sensors can be configured to generate data indicative of a chassis orientation or boom assembly orientation relative to a level axis. A computing system can be communicatively coupled to the one or more sensors. The computing system can be configured to calculate an offset angle based on data from the one or more sensors, compare the offset angle to a defined correction threshold, and generate instructions to actuate the suspension component to lower the suspension component relative to a ground surface by a correction factor when the offset angle exceeds the defined correction threshold.

A method for operating a driver assistance system of a motor vehicle for assisting detection of objects in an environment of the motor vehicle. The motor vehicle is equipped with a height-adjustable chassis. During a driving maneuver, the height-adjustable chassis is set into a driving position in which an object can be detected at a regular distance from the motor vehicle. During a parking maneuver, the height-adjustable chassis is automatically set into a parking position in which an object can be detected at a smaller distance from the motor vehicle. A device that is configured to carry out the method, and a corresponding computer program, are also described.

A method for operating a pressure control system in a vehicle includes controlling a flow-control valve in a charging line, which conveys a charging pressure medium, in dependence upon an admission pressure and/or upon an admission volume flow. The admission pressure and/or the admission volume flow characterizes a prevailing or currently to be expected loading of a pneumatic consumer of the pressure control system during the supply of the charging pressure medium with a charging volume flow and at a charging pressure into the pneumatic consumer. The method further includes adjusting a flow-control cross-section, which acts on the charging pressure medium as it flows through the flow-control valve, or adjusting an average flow-control cross-section so as to limit the charging volume flow to a limit volume flow. The method additionally includes outputting the volume-flow limited charging pressure medium to the pneumatic consumer.

An air suspension control system (ECAS, electronic controlled air suspension) (10) for a utility vehicle, such as a truck or the like, or for a passenger car, includes a main control unit (12) for operating the air suspension control system (10) and at least two auxiliary control units (14) connected to the main control unit (12) via a data link (16). The auxiliary control units (14) each have at least one output (18) for actuating at least one actuator (20) which can be connected to the output (18), in particular an adjustment drive (28) for a valve (30). Furthermore, at least one function for generating control signals at the output (18) can be stored in the auxiliary control units (14), and the main control unit (12) is adapted to call up and/or to parameterize at least the stored functions by transmitting commands via the data link (16).

Method to control active shock absorbers of a road vehicle. Each active shock absorber is part of a suspension connecting a frame to a hub of a wheel and is provided with an actuator. The control method comprises the steps of: determining a longitudinal acceleration and a transverse acceleration of the road vehicle; establishing a desired lowering of a centre of gravity of the road vehicle depending on the longitudinal acceleration and on the transverse acceleration; and controlling the actuator of each active shock absorber so as to obtain the desired lowering of the centre of gravity.

A vehicle height adjustment apparatus according to one embodiment includes a spring, a spring-length changing unit, a first valve, a control valve and a second valve. The spring-length changing unit changes a length of the spring in accordance with an amount of oil in a jack chamber that accommodates the oil. The first valve opens and closes a first communication path in which the oil supplied from a pump is oriented toward a reservoir chamber that stores the oil. The control valve opens and closes a discharge flow path oriented toward the reservoir chamber from a chamber that accommodates the oil to close the first valve. The second valve opens and closes a second communication path in which the oil supplied from the pump is oriented toward the jack chamber when the first valve is closed.

A spindle drive includes a spindle nut, wherein the spindle nut is rotatably supported in a housing, a spindle, wherein the spindle is configured to be displaced in relation to the housing, an axial rolling bearing configured to support the spindle nut, wherein the axial rolling bearing does not guide axially, and a sliding bearing configured to support the spindle and act in a radial direction.

A system for adjusting a height of at least one part of a utility vehicle at at least one predetermined location, the utility vehicle having a position determination device and a height adjustment device to determine a position of the utility vehicle and to change a height of the at least one part of the utility vehicle above a ground surface, including: an interface to receive data that indicate a target height of the at least one part of the utility vehicle at the predetermined location; and a control unit that is couple-able to the position determination device and to the height adjustment device, and is configured, based on a determined position, to prompt the height adjustment device of the utility vehicle to adjust the height of the at least one part of the utility vehicle to the target height. Also described are a related utility vehicle and a method.