Multiple-axle vehicular braking effort distribution method and system
US4677557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1984 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Dec 10, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T8/1766
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A brake pedal of a braking system controls braking pressure to be applied to both the front as well as the rear axles of a vehicle, typically a truck or other heavy vehicle. To distribute braking effort, properly, between the brakes on the wheels of the front and rear axles, based on loading of the vehicle, the load is sensed by a load sensor (3) at one axle, preferably the rear axle, a static loading signal is obtained based on load applied on the rear axle by filtering the derived load signal in a filter (8), and stored; the loading applied to the front axle, then, is calculated based on known vehicle characteristics, retained, for example, in a table, or by interpolation of sensed static load on the rear axle and known consequent loading on the front axle, based on previously measured empty and full loading of the vehicle; respective first brake control signals for the axles are then determined based on the static loading which signals are modified to form a second composite brake control signal by adding the dynamic loading signal, as filtered, from the rear axle only, to both the brake control signals of the front and the rear axle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.