Lock-up control system for a torque converter for an automatic transmission

Patent · Tue Oct 21 04:00:00 EDT 1986

OSTI ID:7142385

Sotoyama, K; Sumida, S; Kikuchi, T

A torque converter lock-up control system is described for an automatic transmission. The system comprises a torque converter having input and output shafts, the input shaft being connected to an output shaft of an engine; a multiple stage transmission gear mechanism connected to the output shaft of the torque converter; and a lock-up means adapted to be selectively engaged and disengaged to change the power transmission path between the input and output shafts of the torque converter. The lock-up means is adapted to directly connect the input and output shafts of the torque converter when engaged. The system also includes a lock-up driving means for controlling the lock-up means; a rotational speed sensor for detecting the rotational speed related to one of the input and output shafts of the torque converter and generating a rotational speed signal; and an engine load sensor for detecting engine load and generating an engine load signal.

• Assignee: Mazda Motor Corp.
• Patent Number(s): US 4618041
• OSTI ID: 7142385
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330602* -- Vehicle Design Factors-- Engine-Transmission Matching
CONTROL EQUIPMENT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
GEARS
MACHINE PARTS
MEASURING INSTRUMENTS
MECHANICAL TRANSMISSIONS
MOTION
ROTATION
SHAFTS
SIGNALS
SPEED REGULATORS
TORQUE
VEHICLES
VELOCIMETERS
VELOCITY