Method and device for determining filling pressure loss of a pneumatic vehicle tire
US5561415A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1995 |
| Grant date | Oct 1, 1996 |
| Priority date | — |
| Expiry date | Jan 13, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/061
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a method for determining pressure loss in a pneumatic vehicle tire on a driven axle of a vehicle the rotational velocities of the wheels are measured and slip values for the driven wheels are calculated therefrom. Simultaneously, wheel drive forces of the vehicle for the calculated slip values are determined. The wheel drive forces and the corresponding calculated slip values are correlated and a characteristic curve is produced. The characteristic curve is compared to a predetermined characteristic curve range and a warning signal is generated when the characteristic curve is outside the predetermined characteristic range. The device for performing the method has sensors for measuring the rotational velocities of the wheels. A device for determining slip of the driven wheels from the measured rotational velocity is provided. A device for determining the wheel driven forces is present. Furthermore, a device for determining the actual characteristic curve by approximation by correlating the wheel drive forces and the slip is provided. A device for inputting and memorizing a maximum slope limit of a predetermined characteristic curve range is provided. Another device compares the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.