Anti-lock braking system
US7959238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2010 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K23/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The motor of an anti-lock braking system comprises a stator having six stator poles and a rotor with a rotor core having nine teeth. The rotor is rotatably mounted to the stator with the rotor core confronting the stator poles. Rotor windings are wound about the teeth and electrically connect to a commutator fixed to a rotor shaft. A bearing is fixed onto one end of the rotor shaft. Pump pistons radially attach to the bearing. The mechanical centreline of the bearing is offset from the rotational axis of the rotor shaft so that the pistons are driven by the bearing when the rotor turns. The windings comprise a plurality of concentrated coils so that the coils do not overlap with each other. The axial length of the motor is thus reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.