Chevrolet Volt 4ET50 Transaxle Components and Operation
General Description at 2:20
Major Components at 2:50
EV Mode at 5:00
Electric Only Combined (Engine Off) Mode at 9:20
Extended Range Mode 11:23
Mountain Mode at 14:58
Disassembly at 16:16
Powerflow at 23:36
Summary at 27:30
Weber State University (WSU) - Department of Automotive Technology - Transmission Lab.
This video shows the components and operation of a 2013 Chevrolet Volt 4ET50 Extended Range Transaxle. This transaxle has four modes of operation as well as 4 possible operational states.
This transaxle design was used in Chevrolet Volts from 2011-2015. The 2016 and above models of the Volt use a different model transaxle.
I made an error on the Motor B to tire gear ratio, it is actually 7.001:1.
The planetary gear reduction is (1+(83/37)) = 3.243:1
The transfer gear reduction is (67/79) = 0.848:1 overdrive
The final drive gear ratio is (79/31) = 2.548:1
The result is 3.243*0.848*2.548 = 7.001
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