Method for weight-based control of internal pressure of a weight-loaded or payload-loaded support

Abstract

A method for the weight-based control of the internal pressure of a support subject to a weight load or payload, wherein the internal pressure is generated by means of an electric motor-driven compressor and the presence and acceleration of gravity g is determined Under the action of mass m 负载 The weight load or payload acting on the support body in the form of , which is that the decrease in internal pressure and subsequent increase occurs, wherein the increase in internal pressure causes the position of the point of application of the weight load or payload to change by a differential amount ΔZ, where: the motor current I of the drive motor of the compressor is measured at a constant motor voltage U during the increase of the internal pressure by means of the compressor 负载 and integrate it over the time of the pressure increase, and from this determine the electrical work W necessary for the change in position 负载 , where, the electric power W 负载 and the eigenvalue W of the electrical work according to the eigenmap 0 for comparison, where, according to W 负载 with W 0 The difference between the amount ΔW and the mass m 负载 Determine the position change ΔZ, mass difference Δm, and payload difference ΔF Z , and from this as a result determine the mass m actually present 负载 and weight load or payload.

Description

technical field [0001] The invention relates to a method of weight-based control of the internal pressure of a weight-loaded or payload-loaded support, wherein the internal pressure is generated by means of an electric motor-driven compressor. The invention also relates to a device for carrying out the method according to the invention when controlling the internal pressure of a tire of a motor vehicle, and to the use of the method. Background technique [0002] Common weight-loaded or payload-loaded supports are, for example, pneumatic tires of motor vehicles. In order to operate such motor vehicle tires safely, it is absolutely necessary that the pressure in the tire must be kept within relatively narrowly predefined limits, so that the wear and temperature loads of the tire are reduced and the tire meets its requirements, for example with respect to the load-carrying capacity , rolling resistance and lateral guidance requirements. [0003] The correct air pressure is se...

AI Technical Summary

Problems solved by technology

While such methods allow the pressure to be determined without additional sensors or additional manometers, the inability to detect the required pressure from the additional load / load is disadvantageous

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