Gear shift prevention

Details Gear shift prevention Gear shift prevention

2008-05-06

2008-05-06

Tran, Dalena (Department: 3664)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Indication or control of braking, acceleration, or deceleration

C180S337000

Reexamination Certificate

active

11087450

ABSTRACT:
A method for temporarily preventing automatic gear shifting in a vehicle, comprising the steps of: preventing gear shifting as long as a traction control system indicates that at least one driven wheel is spinning, calculating a vehicle acceleration, calculating a value of a derivative of the acceleration or a value indicative of a difference between the vehicle acceleration and a previously calculated vehicle acceleration, and preventing gear shifting for a predetermined time, if the value is equal or higher than a predetermined value. A system, a computer program, a computer program product and an electronic control unit for performing the method are also disclosed.

REFERENCES:
patent: 4788892 (1988-12-01), Komoda et al.
patent: 6490516 (2002-12-01), Henneken et al.
patent: 2005/0114003 (2005-05-01), Baize

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