System for integrally controlling automatic transmission and engine

Patent · Tue Apr 25 04:00:00 EDT 1989

OSTI ID:5982018

Yasue, H; Fukumura, K

A system is described for integrally controlling an automatic transmission and an engine, wherein gear stages are automatically switched in accordance with a preset shift map, and engine torque is changed by a predetermined value by a lag angle control, to maintain satisfactory shift characteristics, comprising: processor means for controlling engine torque change, the processor means including means for detecting a high frequency of shiftings; regulating means for regulating the change of engine torque when the high frequency of shiftings is detected; means for detecting a warmed-up state of the engine ; and modulating means for moderating regulation of the change of engine torque performed by the regulating means when the engine is not warmed-up.

• Assignee: Toyota Jidosha Kabushiki Kaisha Aichi
• Patent Number(s): US 4825372
• OSTI ID: 5982018
• 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)
AUTOMATION
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ENGINES
EQUIPMENT INTERFACES
GEARS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION