System for integrally controlling automatic transmission and engine

Patent · Tue Jan 31 04:00:00 EST 1989

OSTI ID:6268934

Yasue, H; Fukumura, K

A system is described for integrally controlling an automatic transmission and an engine, the system comprising: gear shift means having a plurality of frictionally engaging devices for changing gear stages; hydraulic control means for selectively switching engagements of the plurality of frictionally engaging devices to obtain any one of a plurality of gear stages in accordance with a preset shift map; torque changing means for changing the torque of the engine by lagging ignition timing of the engine during the switching of the engagements of the frictionally engaging devices; means for detecting the presence of switching of the engagements of the frictionally engaging devices in accordance with the preset shift map; means for delaying actual commencement of the switching of the engagements of the frictionally engaging devices for a predetermined time duration; and means for performing a fuel increase of the engine immediately after detection of the presence of the switching of the engagements of the frictionally engaging devices.

• Assignee: Toyota Jidosha Kabushiki Kaisha, Aichi
• Patent Number(s): US 4800781
• OSTI ID: 6268934
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
DESIGN
ELECTRONIC CIRCUITS
ENGINES
EQUIPMENT
FRICTION
FUEL SYSTEMS
GEARS
HEAT ENGINES
HYDRAULIC EQUIPMENT
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION
SWITCHING CIRCUITS
SYNCHRONIZATION
TORQUE