Closed pedal deceleration control

Details Closed pedal deceleration control Closed pedal deceleration control

2007-12-04

2007-12-04

Vo, Hieu T. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S399000

Reexamination Certificate

active

11307557

ABSTRACT:
A system and method for controlling an internal combustion engine in a vehicle include controlling the engine to achieve a desired vehicle speed/deceleration when the accelerator pedal is released. A desired vehicle deceleration may be determined based on current transmission gear, vehicle speed, and road grade. Vehicle speed/deceleration is measured using a vehicle speed sensor and/or wheel speed sensor(s) and the engine is controlled to reduce the error between the desired and measured decelerations. Electronically actuated intake and/or exhaust valves, and/or an electronically controlled throttle may be used to achieve a desired vehicle deceleration profile. A selector switch or similar device may be used by the driver to select a desired deceleration profile from two or more available profiles and/or a desired deceleration profile may be automatically selected based on current ambient and/or vehicle/engine operating conditions.

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patent: 2007/0026995 (2007-02-01), Doering

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