Method and system for engine control

Details Method and system for engine control Method and system for engine control

1997-06-04

2000-08-15

Louis-Jacques, Jacques H.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

701111, 701 29, 123322, 123436, 340439, G06G 770, F02D 1304

Patent

active

061049778

ABSTRACT:
A system and method for reducing cab vibration during engine shutdown in a vehicle, including an internal combustion engine, an engine brake, and an electronic control unit for controlling the engine and the engine brake, includes logic for determining when a shutdown condition is occurring, and logic for generating a control signal to activate the engine brake during the engine shutdown. In one embodiment, the step of activating the engine brake is performed only after the engine speed has fallen below a pre-determined level. The system and method also preferably include automatically deactivating the engine brake at a pre-selected time, such as when engine RPM falls below a second threshold, to ensure that the engine brake is not activated upon restarting the engine.

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