Motorcycle having system for determining engine phase
US6588259B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2002 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Nov 5, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0406
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for determining engine phase in a motorcycle engine includes a crank gear sensor mounted near the crank gear of the engine, a pressure sensor mounted on the air intake manifold of the engine, and a processor communicating with the crank gear sensor and the pressure sensor. First and second groups of crank gear teeth pass by the crank gear sensor before either of the first and second pistons of the engine reaches TDC. At low rpm, such as at start up, the processor determines the phase of the engine during a single rotation of the crankshaft by measuring and comparing the time periods taken by the groups of teeth to pass by the crank gear sensor. At high rpm, the processor determines the phase of the engine using the pressure sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.