System for restarting internal combustion engine when engine restart condition is met
US8131452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2010 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Oct 15, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P7/067
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a system, an angle sensor outputs a pulse each time an output shaft of an internal combustion engine rotates by a preset angle, and a calculator calculates speed-change information indicative of a change in a speed of rotation of the output shaft based on the pulses outputted from the angle sensor. A determiner determines, based on the speed-change information, whether at least one of the pulses outputted from the angle sensor represents a proper timing for a preset of a pinion of a starter with a ring gear mounted on the output shaft. A pinion engaging unit shifts the pinion toward the ring gear so that the pinion is engaged with the ring gear when it is determined that the at least one of the pulses outputted from the angle sensor represents the proper timing for the preset of the pinion with the ring gear.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.