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

What do the terms "stepless" or "nonstepped" mean when referring to transmission?

The size of the pulleys in a CVT is _____ controlled to select the best overall drive ratio based on throttle position, vehicle speed, and engine speed

What additional component found in the rear axle of Toyota and Lexus 4WD hybrids rotates the rear drive wheels?

A CVT without a torque converter may use a(n) _____.

A(n) _____ is a fully automated, manual transmission with two computer-controlled clutches.

What are the components of the electronic control system for a typical CVT?

Two-mode hybrid vehicles can rely on electric motor power, engine power, or both.

What is the controlling unit in the power-split device?

Controller area network (CAN) components are used in _____ to interconnect the network of electronic control modules.

Currently, Audi has more models available with DCTs than any other manufacturer.

What does the acronym IMA stands for?

The start clutch in a CVT replaces what component?

The normal, sport, and super sport shifting modes are found in the _____.

Dual-clutch transmissions are being discussed: Technician A says these transmissions use a modified torque converter to transfer power from the engine to the transmission. Technician B says dual-clutch transmissions can use either wet or dry clutches. Who is correct?

The _____ hybrid system, found in GM, BMW, and DaimlerChrysler vehicles, relies in advanced hybrid, transmission, and electronic technologies to improve fuel economy and overall vehicle performance.

Explain how a typical CVT operates.

If a CVT is equipped with five or six predetermined pulley stops in the transmission, it is known as a(n) _____.

Dual-clutch transmissions use what types of clutch assemblies?

Dual-clutch transmissions can change gears faster than any other geared transmission.

What unit contains a constant-mesh, six-speed manual transaxle with wet clutches?