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Method for weight-dependent control of internal pressure of support body loaded by weight load or support load

A technology of internal pressure and effective load, which is applied in the direction of measuring fluid pressure, pump control, weighing, etc., and can solve problems such as detecting pressure

Active Publication Date: 2020-03-06
CONTINENTAL REIFEN DEUTSCHLAND GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Method for weight-dependent control of internal pressure of support body loaded by weight load or support load
  • Method for weight-dependent control of internal pressure of support body loaded by weight load or support load
  • Method for weight-dependent control of internal pressure of support body loaded by weight load or support load

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Embodiment Construction

[0042] figure 1 Shows a basic view of the design of an air compressor unit 1 for a device implemented as a tire repair kit and having the object of carrying out the method according to the invention, namely an "electronic" assisted tire repair kit . The control unit 2 (MCU) controls the connected air compressor 4 according to the needs of the user by means of the motor driver 3 (MD) via the user interface 5 (UI).

[0043] Thus, the term air compressor unit here means the components of the tire repair kit, which include the control unit, the motor drive, the air compressor (similarly a piston compressor), the motor and transmission and the user interface.

[0044] During operation, the control unit (MCU) obtains all relevant system parameters, such as temperature, motor voltage, motor current or backpressure. In this context, as mentioned above, the pressure measurement can be carried out by means of an electronic pressure sensor or by means of an evaluation of the data of th...

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Abstract

The invention relates to a method for the weight-dependent control of the internal pressure of a support body loaded by a weight load or support load, wherein the internal pressure is produced by means of an electric motor-driven compressor and the weight load or support load that is present, which acts on a support body in the form of a mass mLoad under gravitational acceleration g, is determinedin that the internal pressure is decreased and subsequently increased, wherein the increasing of the internal pressure causes a change in the position of a point of application of the weight load orsupport load by a position difference delta(Z), during the increasing of the internal pressure by the compressor the motor current ILoad of the drive motor of the compressor is measured at constant motor voltage U and said motor current is integrated over the time of the pressure increase and the electrical work WLoad required for the position change is determined therefrom, the electrical work WLoad is compared with a characteristic value of the electrical work W0 from a characteristic map, the position change delta(Z), the mass difference delta(m) and the support load difference delta(FZ) are determined from the difference delta(W) between WLoad and W0, and the mass mLoad and the weight load or support load actually present as a result of said mass are determined therefrom.

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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C73/16B60S5/04F04B35/06F04B49/06G01G19/02
CPCB29C73/166F04B35/06F04B49/065F04B35/04F04B2203/0201F04B2203/0202F04B2207/00G01G19/10F04B37/10G01L17/00B60S5/046B60C23/10
Inventor 克里斯托夫·曹姆赖纳·德特林
Owner CONTINENTAL REIFEN DEUTSCHLAND GMBH