Vehicle automatic gear-box control device - uses learning process with computer and sensors to recognise individual travel routes and thereby change gears accordingly

摘要

A control device for automatic gear shifting in a car has sensors to evaluate the driving condition, the gear already engaged, the gearbox output shaft speed and the vehicle acceleration. A computer is used to process the sensor signals connected to an electrohydraulic unit for shifting gear. The sensors evaluate data on individual travel routes (e.g. to work, shopping centre, school etc.) and the computer stores the data in a learning phase for each route. Eventually, in a non-learning phase, the actual instantaneous data is compared with stored data, and automatic gear-shifting occurs based on expected changes in, say, road curvature or gradient. ADVANTAGE- Uses computerised processing of sensor data. Uses recognition of travel routes to give optimum gear-shift pattern.