Stephen Michael White - Saline MI, US Mike Liebert - Saline MI, US Andrew Clement Dame - Saline MI, US Ross Dykstra Pursifull - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
F02N 11/08 F02D 41/06 F02M 1/00
US Classification:
1231793, 12317916
Abstract:
Methods and systems are provided for reducing variability in air-fuel control due to variations in brake booster vacuum levels at an engine start. A throttle position is adjusted during an engine start based on the vacuum availability in the brake booster to control a rate of intake aircharge flow. By allowing aircharge to enter the intake manifold at a more consistent rate, air-fuel control is improved and exhaust emissions are reduced.
Andrew Clement Dame - Saline MI, US Brent Jacobsen - Ann Arbor MI, US Robert Michael Grant - Farmington Hills MI, US Ken Carl Leisenring - Dearborn MI, US
Assignee:
Ford Global Technologies, LLC - Dearborn MI
International Classification:
B60H 1/00 B60H 1/02 B60H 1/32
US Classification:
237 123B, 237 5, 454159, 12333914, 12333924
Abstract:
A system described is for providing improved cabin heating. The system may include a vehicle cabin heating system having a first and second heating system receiving coolant flow from the engine; and a control system for operating the engine at a first engine idle speed upon entering idle speed control operation from previous drive operation, maintaining said first idle speed for a duration, and then increasing engine speed to increase coolant flow to the second heating system during cold ambient conditions when the second heater system is in operation.
Stephen Michael White - Saline MI, US Mike Liebert - Saline MI, US Andrew Clement Dame - Saline MI, US Ross Dykstra Pursifull - Dearborn MI, US
Assignee:
FORD GLOBAL TECHNOLOGIES, LLC - Dearborn MI
International Classification:
F02N 11/08
US Classification:
123319, 1231793
Abstract:
Methods and systems are provided for reducing variability in air-fuel control due to variations in brake booster vacuum levels at an engine start. A throttle position is adjusted during an engine start based on the vacuum availability in the brake booster to control a rate of intake aircharge flow. By allowing aircharge to enter the intake manifold at a more consistent rate, air-fuel control is improved and exhaust emissions are reduced.
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