| 摘要 |
The present invention is an electrical control apparatus for control of an automatic transmission (20) in a motor vehicle. The automatic transmission has a motor (42) for controlling the transmission state. The electrical control apparatus includes an operator input device (30), preferably a set of push buttons, for generating a desired transmission state signal, a transmission state sensing device (73) for generating a present transmission state signal, and a logic control unit (220) for control of the transmission motor. If the desired transmission state differs from the present transmission state, then the logic control unit (220) generates either a clockwise motor drive signal or counter-clockwise motor drive signal as needed to reach the desired transmission state. The logic control unit (220) preferably also includes logic for inhibiting the generation of the clockwise and counter-clockwise motor control signals upon detection of an unsafe circumstance which would make a particular shift hazardous or harmful to the vehicle. |
