Interrelated power delivery controls – including engine control – Transmission control – Transmission controlled by engine
Reexamination Certificate
2005-02-15
2005-02-15
Wright, Dirk (Department: 3681)
Interrelated power delivery controls, including engine control
Transmission control
Transmission controlled by engine
C477S905000
Reexamination Certificate
active
06855092
ABSTRACT:
An electronic throttle controller adjusts vehicle acceleration based on accelerator pedal movement. The controller compares a rate of change of a pedal voltage with a rate of change of a filtered pedal voltage. The filtered pedal voltage depends on filter alpha values that vary as a function of engine speed divided by vehicle speed. If the rate of change of the pedal voltage exceeds the rate of change of the filtered pedal voltage by a threshold, the controller selects a performance mode. The performance mode determines how the controller adjusts a transmission ratio and power request damping. Additionally, the controller adjusts a duration of the performance mode based on an acceleration condition. The acceleration condition is indicative of whether engine speed, vehicle speed, and pedal position are constant.
REFERENCES:
patent: 5133232 (1992-07-01), Kikuchi et al.
patent: 5182710 (1993-01-01), Tomisawa
patent: 6044318 (2000-03-01), Bourdon et al.
Coatesworth Timothy A
Duty Mark J.
DaimlerChrysler Corporation
Smith Ralph E.
Wright Dirk
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