Process for managing the re-start of an internal combustion engine in a start and stop system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 16, 2018
Grant Date -
Aug 9, 2018
app pub date -
Jul 29, 2016
filing date -
Aug 3, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A process for managing the re-start of an internal combustion engine in a Start and Stop system using an electric motor managed by an electric motor control unit (EMU), a first step of direct evaluation of the rotation regime of the crankshaft being provided by an internal combustion engine control unit (ECU) through a sensor put on the crankshaft: if the rotation regime is above a threshold corresponding to the sensor accuracy loss, in case of re-opening of the throttle valve said control unit of the combustion engine (ECU) continues to provide fuel and ignition; otherwise a crankshaft positioning step is provided by the electric motor control unit (EMU) comprising: a forward crankshaft rotation by a predetermined forward rotation angle; a detection of a possible piston stall state followed, in negative case, by an additional forward crankshaft rotation until reaching a maximum predetermined forward rotation angle; an inverse crankshaft rotation by a predetermined angle; and a detection of a possible piston stall state followed, in negative case, by an additional inverse crankshaft rotation until reaching a maximum predetermined inverse rotation angle.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully