Method for controlling an engine during a restart

Patent metadata

Field	Value
Publication number	US-10024290-B2
Application number	US-201614989672-A
Country	US
Kind code	B2
Filing date	Jan 6, 2016
Priority date	Sep 1, 2009
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

Various systems and methods are described for controlling an engine in a vehicle, the engine being coupled to a transmission. One example method comprises, under selected braking conditions, shutting-off the engine and spinning-down the engine to rest while the vehicle is traveling, and in response to a foot-off-brake event, restarting the engine by at least partially engaging the transmission and adjusting engine torque control actuators.

First claim

The invention claimed is:

1. A system for controlling a vehicle engine, comprising:
an engine;
a transmission;
a pump; and
a controller including executable instructions stored in non-transitory memory that cause the controller to respond to a first operating condition by restarting the engine by at least partially engaging the transmission to assist in spinning-up of the engine from rest while a vehicle is traveling, the controller further configured to adjust at least one of a throttle position, spark advance, cam angle, and fuel timing in response to a second operating condition, and the controller further configured to control operation of the pump.

2. The system of claim 1 , wherein the transmission has a plurality of gears.

3. The system of claim 1 , wherein the pump is an engine oil pump.

4. The system of claim 1 , wherein the pump is a transmission fluid pump.

5. The system of claim 1 , further comprising additional instructions to adjust output of the pump responsive to ambient temperature while the engine is at rest.

6. The system of claim 1 , further comprising additional instructions to adjust output of the pump responsive to ambient air pressure while the engine is at rest.

Assignees

• Ford Global Tech Llc

Inventors

• Lewis Donald J
• Surnilla Gopichandra
• Pursifull Ross Dykstra

Classifications

• F02N2200/102

  Brake pedal position · CPC title

• B60W2510/0604

  Throttle position · CPC title

• F02N11/0803 Primary

  characterised by means for initiating engine start or stop (F02N11/0814 takes precedence) · CPC title

• F02N11/0855

  during engine shutdown or after engine stop before start command, e.g. pre-engagement of pinion · CPC title

• B60W2710/0616

  Position of fuel or air injector · CPC title