Control method and apparatus for shifting automatic transmission

Details Control method and apparatus for shifting automatic transmission Control method and apparatus for shifting automatic transmission

1989-05-16

1992-03-31

Teska, Kevin J.

Boots, shoes, and leggings

74866, B60K 4118

Patent

active

051013509

ABSTRACT:
A method of controlling an automatic transmission for a motor vehicle having a plurality of operating positions such that the operating positions are automatically selected. A plurality of control rules and a plurality of logical equations are provided such that the control rules and logical equations correspond to the operating positions of the transmission. Each of the control rules consists of a plurality of sub-rules for effecting determinations associated with running conditions of the motor vehicle. A logical operation of each control rule is performed according to a corresponding one of the logical equations, based on results of the determinations of the sub-rules corresponding to each control rule. A decision is made as to whether the each control rule is satisfied, or not. The transmission is shifted to one of the operating positions which corresponds to the control rule which is satisfied.

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