Transcript NOAH (Chassis)

Model Outline
for Technician
Contents
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1
Engine
Chassis
Body
Body Electrical
Model Outline
2
for Technician
Engine
Chassis
K111 CVT
Body
Body Electrical
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
(Continuously Variable Transmission)
Overall
– A metal belt type continuously variable transmission
with electronic hydraulic control
Transaxle Type
K111
Engine Type
3ZR-FE
Forward and
Reverse Drive
Shift Mechanism
Electronically controlled
planetary gear type
Transaxle
Electronic hydraulic
control metal belt type
continuously variable
transmission
Type
Gear
Ratio
Forward
2.396 to 0.428
Reverse*1
Differential Gear Ratio*2
Shift Lever Position
3
1.668
5.470
P–R–N–D–S-B
Fluid Type
CVT Fluid TC
Fluid Capacity
[Liter (US qts, Imp. qts)]
8.7 (9.2, 7.7)
*1: Planetary Gear Ratio Included
*2: Reduction Gear Ratio Included
Model Outline
for Technician
Engine
K111 CVT
Chassis
Body
Body Electrical
Features of CVT
– CVT perform speed ratio control using a pair of pulleys
Secondary Pulley
Metal Belt
Pulley Width
= Large
Pulley Width
= Small
Primary
Pulley
INPUT
OUTPUT
General AT
1st 2nd
Engine
Speed
3rd
4th
CVT
(Shaded Region)
Vehicle Speed
4
Speed Ratio
Pulley Width
= Small
Low Speed Ratio
Pulley Width
= Large
High Speed Ratio
Operation of CVT
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Features of CVT
– Driving near optimal fuel consumption is allowed
Optimal Fuel
Consumption
Enlarged
Fuel Cut
Area
Specific Fuel
Consumption
Map
1st
Engine
Torque
: CVT
: General AT
Engine
Speed
Speed Ratio
Control Area
for CVT
2nd
3rd
4th
ON
Fuel
Cut
OFF
Engine Speed
Area used when driving
5
Vehicle Speed
Enlargement of fuel cut
area when deceleration
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Features of CVT
– Engine speed in a high output range can be maintained
: CVT
: General AT
Maximum
Engine
Output Point
Engine
Speed
Time
Engine Speed During Full Throttle Acceleration
6
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Features of CVT
– Smooth driving force characteristics
: CVT
: General AT
High
Effective
Driving Force
Area in CVT
Driving
Force
Vehicle Speed
High
Chart of Driving Force Characteristics
7
Model Outline
for Technician
Engine
K111 CVT
Chassis
Body
Body Electrical
Components
Forward and
Reverse Drive
Shift Mechanism
Continuously
Variable
Transmission
and Metal Belt
Primary
Pulley
Metal
Belt
Oil Pump
Secondary
Pulley
Reduction
Gear
Parking Lock
Mechanism
8
Torque
Converter with
Lock-up Clutch
Differential
Gear
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Components
3 Speed
Sensors
CVT Fluid
Warmer
Oil
Pressure
Sensor
Overflow
Plug
9
Valve Body Unit
(Hydraulic Control Unit)
Model Outline
for Technician
Reference
Engine
Chassis
Body
Body Electrical
(K111 CVT)
Components (K210 CVT)
Secondary
Pulley
Forward and
Reverse Drive
Shift Mechanism
Torque
Converter with
Lock-up Clutch
Metal Belt
Primary
Pulley
CVT
Fluid
Warmer
10
K210 CVT
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Torque Converter with Lock-up Clutch
– Damper structure allowing lock-up from low speed
range
Turbine Runner
Pump Impeller
Stator
One-way Clutch
11
Lock-up Clutch
Damper Structure
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Oil Pump
– The oil pump is combined with the torque converter,
lubricates the parts and supplies operating pressure to
the hydraulic control
Oil Pump
12
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Gear Train
– Consists of a planetary gear, continuously variable
transmission, reduction gear and differential gear
Reverse Brake
Input
Shaft
Primary
Pulley
Metal
Belt
Forward
Clutch
Secondary
Pulley
Continuously
Variable
Transmission
Planetary Gear Unit
Reduction Gear
Final Gear
13
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Gear Train
– Operation (D Position)
D position
D position
(Lowest Ratio)
Pulley Width
= Large
(Highest Ratio)
Pulley Width
= Small
OFF
ON
Pulley Width
= Small
14
OFF
ON
Pulley Width
= Large
Model Outline
for Technician
K111 CVT
Engine
Chassis
Body
Body Electrical
Gear Train
– Operation (N and R Position)
N position
Pulley Width
= Large
R position
Pulley Width
= Large
OFF
OFF
Pulley Width
= Small
15
ON
OFF
Pulley Width
= Small