CONTROL SYSTEM FOR AUTOMATIC TRANSMISSION

• Main Author: KATOU YUUJI
• Format: Patent
• Language: English
• Published: 13.05.1985
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

PURPOSE:To reduce fuel consumption by giving pseudo-vehicle speed signal and- throttle opening signal to maintain the speed change ratio of an automatic transmission body at the fourth speed to an automatic transmission controlling means when an automatic vehicle speed controlling means is operated. CONSTITUTION:When an automatic vehicle speed controlling means 16 is operated, it generates the operative signal output to an automatic transmission controlling means 14 to give to said means 14 pseudo-vehicle speed signal and throttle opening signal to maintain the speed change ratio of an automatic transmission body 13 at the fourth speed. Thus, since the speed change ratio of the automatic transmission body 13 can be always allowed for the fourth speed irrespective of the vehicle speed signal and the throttle opening signal, the travelling range of the fourth speed can be expanded to reduce fuel consumption.