Warm-up control for closed loop engine

Details Warm-up control for closed loop engine Warm-up control for closed loop engine

F - Mech Eng,Light,Heat,Weapons

02

M

341/38.14

F02M 51/00 (2006.01) F02D 41/14 (2006.01) F02D 41/24 (2006.01) F02P 5/145 (2006.01) F02B 75/02 (2006.01)

Patent

CA 1124816

WARM-UP CONTROL FOR A CLOSED LOOP ENGINE ROUGHNESS CONTROL ABSTRACT A warm-up control for a closed loop engine roughness control responsive to engine load and engine temperature is disclosed herein. The warm-up control provides a first correction signal to the closed loop engine roughness control operative to increase the effective value of the roughness signal in response to a signal indicative of a load being applied to the engine and the engine temperature being below d predetermined temperature and a second correction signal to the closed loop engine roughness control operative to decrease the effective value of the roughness signal in response to a signal indicative of a light engine load and the engine temperature being below a predetermined temperature. The control also generates a transient signal in response to a sudden increase of the engine's load operative to cause the closed loop engine roughness control to generate a fixed output signal for a predetermined length of time. The fuel control computer in response to the fixed output signal generates signals increasing the fuel delivery to the engine to prevent the engine from stumbling or stalling with the application of the load.

323041

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