123 / | HD | INTERNAL-COMBUSTION ENGINES |
434 | DF | CHARGE FORMING DEVICE (E.G., POLLUTION CONTROL) {29} |
672 | DF | .~ Including exhaust gas condition responsive means {11} |
674 | .~.~ With modifying or updating memory (i.e., learning) {1} | |
675 | DF | .~.~.~> Acceleration or deceleration responsive |