Nissan Leaf teardown (Part 3): body cutaway
Reducer, inverter, electrically-controlled brake and HVAC systems are highlighted
One of the main events of the Saitama Institute of Automotive Technology's campus festival, held October 27-28, was the display of the Nissan Leaf's cutaway model by the engineering students (the vehicle itself is owned by the Saitama Automotive Industry Support Center and was offered to the Institute for the occasion). The display presented more details about the Leaf's key components than we were able to get from its disassembly earlier as described in MarkLines report posted in September.
The latest disassembly is reported below as Nissan Leaf Teardown (Part 3): body cutaway. It includes photos of components as incorporated in the cutaway model and those that have been removed and disassembled.
The red paint identifies the separation (cut) line and the blue identifies water storage or channel.
|Earlier reports:||Nissan Leaf Teardown (Part 2): Main components disassembled (posted in September 2012)|
|Nissan Leaf Teardown (Part 1) (posted in March 2012)|
* Click on the photo for a larger image.
Overview of the Leaf's cutaway model
Overview of the Leaf's cutaway model and the front frame
Power transmission device (reducer)
Power transmission device (reducer) and electric parking lock actuator
Inverter and DC-DC junction box
Lithium-ion battery pack
Electrically-controlled brake system
The system fully uses the regenerative brake in coordination with the friction brake, while creating a natural braking feel. The system is located in the motor room and directly in front of the driver's seat.
Electrically-controlled brake unit
Electric parking brake
Systems for cooling high-voltage parts and for air conditioning
The Nissan Leaf EV uses high-voltage current and has a separate system for cooling the high-voltage parts in addition to the air conditioning systems (cooling and heating systems). The following components are described in this report: * Radiator and cooling fan → High-voltage parts cooling system * Condensers, electric compressor and scrolls → A/C cooling system * PTC element heater, electric water pump → A/C heating system Electric pumps are also used in the high-voltage parts cooling system and the A/C cooling system other than the A/C heating system.
High-voltage parts cooling system and A/C cooling system
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