Method for retaining the correction value of a control variable

Details Method for retaining the correction value of a control variable Method for retaining the correction value of a control variable

1994-06-07

1996-03-05

Teska, Kevin J.

Boots, shoes, and leggings

36443112, 36442404, 36442403, 364132, 3951822, 12333923, 123417, 123486, G06F 1900, G06F 700

Patent

active

054973309

ABSTRACT:
A method of storing a correction value of a control variable in an engine control device includes the steps of transferring a correction value stored in a RAM to an E.sup.2 PROM by serial communication immediately after a power supply switch is turned off. The correction value stored in the E.sup.2 PROM is then transferred back to the RAM immediately after the power supply circuit is turned on. In this way, when the engine control device is not in operation, the correction value is retained in the E.sup.2 PROM.

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F. Muller, "Entwicklungstendenzen in der elektronischen Steuer-un Regeltecknik," Der Elektroniker, No. 3, Jan. 1978, EL25-EL31. (Jan. 1978).

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