System for controlling engine torque

Patent · Tue Mar 07 04:00:00 EST 1989

OSTI ID:6101703

Iwatsuki, K; Shindo, Y

A system is described for controlling an engine torque, wherein the engine torque is changed by predetermined values when an automatic transmission is shifting to satisfactorily maintain the shift characteristics of the automatic transmission, the system comprising: means for detecting a temperature in an exhaust system of the engine; and processor means for controlling the engine torque change. The processor means includes means for determining an operation area of the engine torque change, and means for correcting at least one of the operating area of the engine torque change and the predetermined value wherein engine torque change control during shifting is controlled so that a further rise in temperature in the exhaust system is inhibited, when the temperature in the exhaust system of the engine is higher than a reference value.

• Assignee: Toyota Jidosha Kabushiki Kaisha
• Patent Number(s): US 4811223
• OSTI ID: 6101703
• 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
DESIGN
ENGINES
EXHAUST SYSTEMS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
MECHANICAL TRANSMISSIONS
OPERATION
TORQUE