Vehicle height detecting system
US4741206A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 15, 1986 |
| Grant date | May 3, 1988 |
| Priority date | — |
| Expiry date | Dec 15, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G17/0185
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle height sensor includes switching circuits which are turned on and off in accordance with height of a vehicle. The vehicle height sensor is driven when a drive signal is outputted to the sensor. A preset voltage is fed to terminals of the respective switching circuits via resistors. Voltages at the terminals are outputted as vehicle height data having bits corresponding to the respective switching circuits. When the output of the drive signal is suspended, the vehicle height data are read as vehicle height sensor malfunction detecting data. The malfunction detecting data are compared to preset reference data. The vehicle height sensor is judged to be wrong when the malfunction detecting data differ from the preset reference data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.