Exam 11: Electronically Controlled and Automated Transmissions Diagnosing Advanced Electronic Systems

All dual-clutch transmissions use wet clutches to prevent overheating and damage.

The _____ contains a seven-speed computer-controlled unit called Drivelogic which carries out all shifts with no interruption of power flow.

The control unit of a(n) _____ relies on inputs available on the CAN bus, plus four distance sensors, two pressure sensors, and two engine-speed sensors to choose the correct gear and shift timing.

What are the benefits of continuously variable transmissions (CVTs)?

In a typical CVT, one pulley is the drive member and the other is the driven member.

A CVT transmission is an automatic transmission which functions like a manual transmission.

Technician A says both MG1 and MG2 are used to power the drive wheels in a Toyota hybrid drive system. Technician B says only MG1 is used to drive the wheels. Who is correct?

The most complex transmissions are those used in most high-performance vehicles.

Explain the benefits and operation of a dual-clutch transmission.

What components make up the Toyota/Lexus power-split device?

A DCT transmission is really two separate transmissions, one for the even-numbered gears and one for the odd-numbered gears.

Describe the different CVT designs that have been used over the years. Give examples of each.

Sequential manual transmissions (SMTs) work like typical manual transmissions, except automatic actuators shift the gears and work the clutch.

DCTs were first put into production by _____.

In Toyota and Lexus hybrids, MG1 is used as a starter activator and a generator.

What does the acronym CAN stand for?

What was the original name of the dual-clutch transmission and where was it found?

Explain how a SMT is different from a traditional manual transmission.

Motor generator 1 (MG1) and Motor generator 2 (MG2) are components found in _____.

Which of the following clutches serves to reduce friction, limits the production of heat, improves overall performance, increases the life of the clutch assembly, and is capable of handling large amounts of torque?