Slope brake pressure determining method and determining system, and vehicle
US12377826B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 23, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2552/15
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a slope brake pressure determining method and system. The method includes: a pre-braking slope estimated value is determined according to a specified cycle, where a current pre-braking slope estimated value is determined and is used as a first slope estimated value aestimate1, and a pre-braking slope estimated value of a previous cycle that is latched prior to the establishment of brake pressure is used as a second slope estimated value aestimate2; an instantaneous vehicle speed vbrake prior to the establishment of the brake pressure is latched, a vehicle traveling distance lbrake and time tbrake are accumulated, and an in-braking slope estimated value aslop is determined based on the instantaneous vehicle speed vbrake, the vehicle traveling distance lbrake, and the time tbrake; and pre-braking pressure p1 and in-braking pressure p2 are determined based on the second slope estimated value aestimate2 and a third slope estimated value aestimate3, respectively, initial brake pressure p3 is determined based on the pre-braking pressure p1 and the in-braking pressure p2, and final brake pressure p4 is determined based on the initial brake pressure p3. According t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.