Vehicle brake test system
US4893242A · kind A · utility
9Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1987 |
| Grant date | Jan 9, 1990 |
| Priority date | — |
| Expiry date | Dec 24, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/282
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A brake test method measures the brake force per axle of a vehicle by having an operator linearly depress the vehicle brake pedal while the axle's left and right wheels positioned on torque motor driven, constant speed rollers. The roller drive torque magnitude is periodically sampled and the samples are filtered to remove ovality discontinuities, the left and right side filtered samples are then compared to detect the maximum brake force imbalance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.