Abstract: In a method for controlling the operation of a compressor, the compressor is switched off by a controller in order to prevent thermal damage if an estimated temperature value calculated by the controller exceeds an upper threshold value. The controller calculates a cooling function as a state variable utilizing the estimated temperature value, the cooling function representing the chronological course of the cooling of the compressor. The controller determines the cooling function based on at least one first and one second estimated temperature value which are associated with points of the compressor that are at spatial distances to each other. The calculation of the cooling function is based on a temperature difference between the first and second estimated temperature values.

Abstract: A method for regulating a compressor of a pressure supplying system. The compressor is switched on and off dependent on a threshold temperature of one or more components of the pressure supplying system, the threshold temperature being ascertained using a temperature calculating method. The respective threshold temperature is ascertained by correlating the reciprocal temperature dependence that exists as a result of heat transfer between adjacent components.

Abstract: Motor vehicle having a closed ride height control system which contains a control unit in which a switch-off limiting value for at least one operating parameter of at least one component of the ride height control system is monitored, wherein in raising processes the activation of the component is prohibited or aborted when the switch-off limiting value is reached, and upward transgression of the switch-off limiting value of the operating parameter is permitted in the case of lowering processes.

Abstract: A method for controlling a compressor of a compressed air supply in a vehicle pneumatic suspension. The compressor temperature is calculated using a temperature model and the compressor is switched off or continues to be operated in a different mode of operation when a permissible temperature TG is exceeded. At least two different permissible compressor temperatures TG1<TG2 are predetermined. The permissible compressor temperature TG1 is predetermined for a first operating state BZ1 and the permissible compressor temperature TG2 is predetermined for an additional operating state BZ2. In the case that the compressor is or has been already switched on whilst pre-setting the permissible compressor temperature TG1 and during this switched-on period or during a subsequent cooling phase a request is made to achieve the second operating state BZ2, the compressor continues to be operated or is switched back on whilst pre-setting the permissible higher compressor temperature TG2.

Abstract: A method for controlling an electrically driven compressor, which can be switched on and off as a function of demand, of a pneumatic suspension system, wherein the temperature of the compressor is calculated according to a temperature model inside a control device, and the compressor is switched on or off as a function of the calculated temperature, wherein, for the calculation of the temperature of the compressor according to the temperature model, the control device takes into account the air pressure surrounding the vehicle as an input variable, and the parameters of the temperature model are adapted as a function of this air pressure.

Abstract: A method for regulating a compressor of a pressure supplying system. The compressor is switched on and off dependent on a threshold temperature of one or more components of the pressure supplying system, the threshold temperature being ascertained using a temperature calculating method. The respective threshold temperature is ascertained by correlating the reciprocal temperature dependence that exists as a result of heat transfer between adjacent components.

Abstract: Motor vehicle having a closed ride height control system which contains a control unit in which a switch-off limiting value for at least one operating parameter of at least one component of the ride height control system is monitored, wherein in raising processes the activation of the component is prohibited or aborted when the switch-off limiting value is reached, and upward transgression of the switch-off limiting value of the operating parameter is permitted in the case of lowering processes.

Abstract: In a method for controlling the operation of a compressor, the compressor is switched off by a controller in order to prevent thermal damage if an estimated temperature value calculated by the controller exceeds an upper threshold value. The controller calculates a cooling function as a state variable utilizing the estimated temperature value, the cooling function representing the chronological course of the cooling of the compressor. The controller determines the cooling function based on at least one first and one second estimated temperature value which are associated with points of the compressor that are at spatial distances to each other. The calculation of the cooling function is based on a temperature difference between the first and second estimated temperature values.

Abstract: A method controls a compressor for delivering a pressure medium into a pressure medium system, for example an air suspension system in a motor vehicle. In the method, the delivery of the pressure medium can be switched on and off as a function of a temperature signal by the compressor temperature being measured by a temperature sensor which is arranged on the compressor and the switching on and off of the compressor is controlled by an electronic control unit. The switching-on time duration and/or the switching-off time duration or the switching-off and/or the switching-on temperature are/is determined from the rise of the compressor temperature which is measured at short time intervals.