Engine speed control with optional cruise control

Details Engine speed control with optional cruise control Engine speed control with optional cruise control

1998-09-25

1999-10-05

Cuchlinski, Jr., William A.

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

701 91, 180170, 180179, 123319, 1233391, 123349, B60K 3100

Patent

active

059615664

ABSTRACT:
An apparatus and a method for controlling engine speed in a motor vehicle engine (9) by an engine management system (1) with an engine control output (8,46). The engine management system (1) provides the following operations. A driver demand controller (38) responsive to an accelerator pedal (12) provides a first control signal (40) representative of a target engine speed. A cruise speed controller (22) responsive to a cruise control setting and vehicle speed provides a cruise signal (28). An idle speed controller (30) provides an idle signal (32). A combined idle-cruise speed controller (36) provides a second control signal (42) representative of a target engine speed which is responsive to the greater of the cruise signal (28) and idle signal (32). The greater of the first (40) or second (42) signals is selected to control (8,46) engine speed. When there is no cruise control, the apparatus is defaulted to a condition in which the combined idle-cruise speed controller (36) is responsive only to the idle signal (32).

REFERENCES:
patent: 5155687 (1992-10-01), Katayama
patent: 5624005 (1997-04-01), Torii

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