A gear-shift control system of an automatic transmission, in which gear shift schedule is appropriately changed-over in correspondence with the change of a road surface situation. Low-friction road surface detection device detects a low-friction road surface so as to select the gear shift schedule...http://www.google.fr/patents/US5679092?utm_source=gb-gplus-shareBrevet US5679092 - Gear-shift control system of automatic transmission for motor vehicle
Gear-shift control system of automatic transmission for motor vehicle
