摘要:
The object of the inventional system is the so-called "modal" variant of the skyhook damping. The advantage of this variant over the local version is essentially constituted by enabling an individual damping of the eigenoscillation forms. Moreover, a definitive roll or sway moment distribution can be adjusted. For that purpose there are signals determined which represent the local vehicle body movements at selected points of the vehicle body. Basing on these signals, the heave, roll and pitch movements are inferred. These movements are differently weighted depending on travel maneuvers. By actuation of the damper systems dependent on the weighted heave, roll and pitch movements a specific influencing of certain components of the body movement is possible.
摘要:
The invention relates to a process for the undercarriage regulation of vehicles, especially of passenger and utility motor vehicles, in which the undercarraige properties are varied in dependence on the particular sensor-determined traveling state by the regulating system. For an adaptation of the undercarriage tuning to the various requirements in respect to traveling comfort and traveling safety it is provided that the regulator parameters (R) of the regulating circuit are automatically varied in dependence on the dynamics of the traveling process.
摘要:
Described is a process for conditioning of sensor signals for at least one of undercarriage regulation and control. The objective of this process is to superimpose on processed first signals which represent the acceleration of the vehicle body the low-frequency information absent from the signal of a vehicle body acceleration sensor by a circuit of simple design through a defined superimposition with the sensor signals corresponding to at least one of the spring deflection path and the spring deflection velocity. For that purpose, the sensor signals to be superimposed are processed in filter units whose transfer functions show a specific functional correlation.
摘要:
A system for the generation of signals for control or regulation of a passenger car and/or truck undercarriage controllable or regulable in its sequences of movement, where a three-step operation is provided. In a safety mode, particular allowance is made for road safety, and in a comfort mode for travel comfort. Moreover, a predetermined undercarriage setting is selected in a standard mode. These selections are based on the movements determined between the wheels and the vehicle superstructure, such as spring deflection movements. Furthermore, based on the determined spring deflection movements, the actual value P of the wheel load fluctuations and the movements of the vehicle superstructure are inventionally determined. By query of certain criteria it is determined whether the undercarriage, controllable or regulable in its sequences of movement, will be adjusted in view of minimizing the wheel load fluctuations (safety mode) or in view of minimizing the superstructure movements (comfort mode) or whether a predetermined, specifically soft undercarriage setting will be selected (standard mode).
摘要:
An electronic system for a vehicle includes first components for carrying out control tasks in response to operating sequences and second components that coordinate a cooperation of the components for carrying out control tasks. The first components carry out the control tasks by using operating functions and basis functions, wherein the system is constructed such that the basis functions are combined in a basis layer, and a system layer is superimposed on the basis functions, which includes at least two of the second components. At least one open interface of the system layer is provided for the operating functions, and the system layer links the basis functions to any and all operating functions, such that the operating functions can be interconnected and/or used in a modular fashion.
摘要:
In a method for semiactive chassis control, in particular for damping resilient wheel suspension systems in vehicles, having a piston displaceable in a cylinder and subdividing it into two work chambers, the cylinder and piston are each connected to a vehicle body or a wheel axle. At least one valve that controls the flow of pressure fluid into and out of the work chambers is associated with the work chambers. Control of the valve is effected as a function of an absolute vertical speed of the vehicle body and of a zero crossover of the relative speed of the relative motion between the axle or wheel in the vehicle body and/or of a zero crossover of the damper force and/or of a zero crossover of the differential pressure at the damper piston.
摘要:
In a system for controlling a chassis, in particular for controlling spring cylinders that can simultaneously perform the function of a semiactive shock absorber and are disposed between wheel suspensions and the vehicle body, at least one chamber of the spring cylinder is intended to communicate via a line or branch line with a pumping device, reservoir or the like for a pressure fluid, and at least one control member is connected between the pump device, reservoir or the like and the chamber. A control valve, which responds to a change in pressure in a shunt between the control valve and a line, is disposed in the control member.
摘要:
A device and a method implementable therewith for regulating the driving speed of at least one vehicle, having an electric motor/generator connected or connectable to a drive train for at least one wheel as a function of at least its actual speed and setpoint speed. The device includes a control unit for controlling the torque of the electric motor/generator, an arrangement for driving the electric motor/generator, an arrangement for recording the actual speed of the vehicle and an arrangement for preselecting the setpoint speed of the vehicle. In the device, the electric motor/generator is usable in generator operation to generate a braking torque and in engine operation to generate a driving torque.
摘要:
A system for chassis control, specifically of passenger cars and trucks, where the control parameters of the controlled loop are varied for control of the chassis properties in contingence on the state of travel of the vehicle as determined by sensors. Specifically determined for recognition of the state of travel are parameters representing the vertical-dynamic state of movement of the vehicle and/or the individual driving style of the operator. This procedure is based upon the relative movements between the vehicle body and at least one wheel, captured by sensors.
摘要:
The damping characteristics of shock absorbers are variable contingent upon various operating parameters. In changing the damping characteristic, the invention provides for performing the change during operating phases of slight damping force changes. This can be achieved, in that the changes of the damping characteristic are carried out only in the compression stage of the shock absorber. This is especially favorable with a shock absorber of a design such that its damping characteristic will be adjustable only in the traction stage.