Abstract: A method for controlling the air pressure in tires able to be mounted on two powered axles of a motor vehicle, as a function of a driving situation, an engine torque being distributable to the two axles by a distributor clutch, and a plurality of input values being converted in a processing unit into an air pressure value describing the air pressure in each tire, a clutch friction value, which represents the clutch status, being processed into a control value in the processing unit as well. Also, a device which includes means for implementing such a method.

Abstract: A method for monitoring the tire pressure of motor vehicle wheels of which at least one is equipped with a tire pressure sensor. The tire pressure can be very easily monitored even at those wheels not having a tire pressure sensor if, at a first wheel having a tire pressure sensor, the tire pressure or a quantity that is a function of the tire pressure is measured and this measurement value is used as a reference value, and in addition a quantity that is a function of the tire pressure is measured at a second wheel that does not have a tire pressure sensor, and the corresponding measurement value is compared to the reference value.

Abstract: In a method for monitoring the tire condition in a vehicle, the vertical acceleration is measured at one axle of the vehicle, a reference stiffness value is determined from the vertical acceleration, and a tire pressure is assigned to the reference stiffness value. In the case of a detected tire pressure loss, the tire pressure is assigned to the tire of the wheel having the pressure loss.

Abstract: A method for controlling the air pressure in tires able to be mounted on two powered axles of a motor vehicle, as a function of a driving situation, an engine torque being distributable to the two axles by a distributor clutch, and a plurality of input values being converted in a processing unit into an air pressure value describing the air pressure in each tire, a clutch friction value, which represents the clutch status, being processed into a control value in the processing unit as well. Also, a device which includes means for implementing such a method.

Abstract: In a method for monitoring the tire condition in a vehicle, the vertical acceleration is measured at one axle of the vehicle, a reference stiffness value is determined from the vertical acceleration, and a tire pressure is assigned to the reference stiffness value. In the case of a detected tire pressure loss, the tire pressure is assigned to the tire of the wheel having the pressure loss.

Abstract: A method and a device for monitoring a tire condition of a vehicle provide for a malfunction being detected as a function of the condition of the surface on which the vehicle is traveling, the detection occurs in at least two different, independent monitoring modes. Each monitoring mode is assigned a calibration data set based on a wheel dynamics variable representing the tire condition. Monitoring occurs by comparing the current wheel dynamics variable with the relevant calibration data set. Should a malfunction be detected during monitoring of the tire condition, the driver is informed thereof.

Abstract: A method and device for monitoring the tire state at the driven wheels of a motor vehicle, in which angular motions of the driven wheels are measured and variables, which are a function of measured angular motions, are generated. The generated variables are combined with each other. The monitoring takes place as a function of the operation result. The drive torque acting on the driven wheels is taken into consideration in the monitoring. For different kinds of tires, the rolling circumference changes as a function of the drive torque in such a sharply varying manner, that a change in the rolling circumference caused by a loss of pressure may be offset and is not detected. If the effect of the drive torque is now considered in detecting a loss of tire pressure, then, even in such cases, the loss of pressure may be detected reliably and without detection errors.

Abstract: A method and an apparatus for monitoring an operating state of at least one tire of a vehicle are provided. The monitored operating state may be, for example, the air pressure of the tire. One tire state variable that represents the current operating state of the tire, and one calibration variable that represents the target tire state of the tire, are taken into consideration in the monitoring. The monitoring is accomplished in different monitoring modes, i.e., the particular monitoring mode employed is determined as a function of at least one driving state variable representing the driving state. In an example embodiment, for a given driving state variable, the vehicle speed is selected as the differentiation criterion for the different monitoring modes.

Abstract: A method of regulating at least one variable characterizing the vehicle dynamics, a loss of pressure in a vehicle tire being determined; the position of the underinflated tire being determined, wherein during cornering, regulation of the variable which characterizes vehicle dynamics is dependent upon whether the underinflated tire is on the inside or outside of the turn being executed by the vehicle.

Abstract: The present invention describes a method and a device for monitoring an operating state of at least one tire of vehicle as a function of the coupling of a trailer to the vehicle. In this context, the operating state of the tire, i.e. the tire state, is particularly monitored for changes. Operation of the vehicle with a trailer causes the distribution of the axle load between the front and rear axles to change in the towing vehicle. This manifests itself in changed slip conditions for the wheels on both the front axle and the rear axle and results in the wheel speeds in trailer operation differing from those in trailerless operation, when the conditions are otherwise the same. Now, the essence of the present invention is to modify the wheel-speed-based monitoring of the tire state on the basis of detecting that the vehicle is being operated with a trailer. This modification allows, e.g. a loss in pressure of a tire to be determined with a better detection accuracy.

Abstract: A traction control system having a braking intervention in particular for motor vehicles in which a slipping wheel is braked by a braking intervention on exceeding a slippage threshold. To improve the stability and steerability of the vehicle on slopes having different adhesive friction values between the right and left sides of the vehicle (&mgr;-split), the slippage threshold of the slipping low-&mgr; wheel is adjusted as a function of the slope, the slippage threshold of the slipping wheel being increased with an increase in slope in the case of a front-wheel drive vehicle and is decreased with an increase in slope in the case of a rear-wheel drive vehicle.

Abstract: A method for monitoring at least one hydraulic component in a vehicle. In this context, it is provided that, for the monitoring, at least one wear-causing loading of the monitored component be measured and the measured loading be compared to at least one specifiable threshold value. In particular, the loading is measured on the basis of a braking request. The predefined threshold value represents a critical loading of the monitored components. Thus, the overloading of the monitored component may be detected by comparing the measured loading to the threshold value representing the critical loading. Suitable measures may be taken as a function of the executed comparison of the measured loading to the predefined threshold value. In this context, it is provided that the measures result in a reduction of the wear-causing loadings.

Abstract: The present invention relates to a system for monitoring the driving condition of a vehicle having a sensor suite (10) measuring the wheel force for ascertaining a wheel force at at least one wheel (12) of the vehicle, and means (14, 16) for processing the ascertained wheel force, a condition of a shock absorber allocated to the wheel (12) being ascertainable from a result of the processing. The invention also relates to a method for monitoring the driving condition of a vehicle.

Abstract: A method and an apparatus for monitoring an operating state of at least one tire of a vehicle are provided. The monitored operating state may be, for example, the air pressure of the tire. One tire state variable that represents the current operating state of the tire, and one calibration variable that represents the target tire state of the tire, are taken into consideration in the monitoring. The monitoring is accomplished in different monitoring modes, i.e., the particular monitoring mode employed is determined as a function of at least one driving state variable representing the driving state. In an example embodiment, for a given driving state variable, the vehicle speed is selected as the differentiation criterion for the different monitoring modes.

Abstract: A method of regulating at least one variable characterizing the vehicle dynamics,

Abstract: A traction control device for a vehicle that has at least one axle, to which two driven wheels are assigned, the traction control device, when one of the driven wheels of the axle shows a tendency to spin, regulating the kinematic behavior of the wheel tending to spin by building up a first wheel brake pressure such that the wheel tending to spin of the axle remains within a permissible slip range. In order to reduce disturbance torques caused by the first wheel brake pressure for a wheel that is not tending to spin of the axle, a second wheel brake pressure is built up, which is adjustable independently of the first wheel brake pressure. Also described is a method for controlling the slip of at least one driven wheel of an axle of a vehicle.

Abstract: A system for determining the height of the center of gravity of a vehicle includes an arrangement configured to determine a difference between wheel contact forces, an arrangement configured to determine a transverse acceleration, an arrangement configured to determine comparison values which compares the change in the difference between wheel contact forces with the change in the transverse acceleration, and an arrangement configured to evaluate a roll model which determines the height of the center of gravity from the comparison values. Furthermore, a corresponding method is for determining the height of the center of gravity of a vehicle.

Abstract: A traction control system having a braking intervention in particular for motor vehicles in which a slipping wheel is braked by a braking intervention on exceeding a slippage threshold. To improve the stability and steerability of the vehicle on slopes having different adhesive friction values between the right and left sides of the vehicle (&mgr;-split), the slippage threshold of the slipping low-&mgr; wheel is adjusted as a function of the slope, the slippage threshold of the slipping wheel being increased with an increase in slope in the case of a front-wheel drive vehicle and is decreased with an increase in slope in the case of a rear-wheel drive vehicle.

Abstract: A device and method for determining values and/or generating signals, which can be used for closed-loop or open-loop controlling of the driving behavior of a vehicle equipped with a sensor system that detects wheel contact forces, includes determining the vehicle mass via the wheel contact forces that are detected, and further includes at least one of determining shifts in the wheel contact forces, and determining the required drive torque.

Abstract: A traction control system including engine intervention and brake intervention, during a start under &mgr;-split conditions the engine torque is increased compared to the driver input to accelerate vehicles as under high friction conditions, the vehicle acceleration under high friction conditions is determined, and engine torque is further increased by the brake torque applied to the low-&mgr; wheel.