Toyota CH-R Service Manual: System Description

Neural Network Control

This control is capable of performing complex control by artificially simulating the information processing method of the nervous system of living organisms in order to establish a complex input/output relationship similar to that of a human brain.

Outlet Air Temperature Control

Based on the temperature set by the temperature control dial, neural network control calculates outlet air temperature based on input signals from various sensors.

Left and Right Independent Control

The temperature settings for the driver and front passenger are controlled independently in order to provide separate vehicle interior temperatures for the right and left sides of the vehicle. Thus, air conditioning that accommodates the occupants' preferences has been realized.

Blower Control

Controls the blower motor in accordance with the airflow volume that has been calculated by neural network control based on input signals from various sensors.

Air Outlet Control

Automatically switches the air outlets in accordance with the outlet mode that has been calculated by neural network control.

In accordance with the engine coolant temperature, ambient air temperature, amount of sunlight, required blower, outlet temperature and vehicle speed conditions, this control automatically switches the blower outlet to foot/defroster mode to prevent the windows from becoming fogged up when the ambient air temperature is low.

Air Inlet Control

Automatically controls the air inlet control damper to help achieve the calculated outlet air temperature that is required.

Drives the air inlet control servo motor according to the operation of the air inlet control switch and moves the dampers to the fresh or recirculation position.

Variable Capacity Compressor Control

Controls the compressor with pulley assembly to turn it on or off and adjust the discharge capacity based on the signals from various sensors.

Defroster Control

Defroster control logic is used to improve defroster performance.

PTC Heater Control

When the engine is running and the blower motor with fan sub-assembly is turned on, the air conditioning amplifier assembly turns on the quick heater assembly if the conditions listed below are met:

ECO Mode Control

When the air conditioning control assembly (ECO mode switch) is turned on, the air conditioning amplifier assembly limits the air conditioning system performance.

Parking Fresh Control

By automatically switching to fresh air mode when the vehicle is parked. Ventilation of the parked vehicle is facilitated and outside air is introduced into the air conditioner unit assembly.

Diagnosis

A Diagnostic Trouble Code (DTC) is stored in memory when the air conditioning amplifier assembly detects a problem with the air conditioning system.

*1

Driver Side Air Mix Control Damper

*2

Front Passenger Side Air Mix Control Damper

*3

Driver Side Defroster

*4

Front Defroster

*5

Front Passenger Side Defroster

*6

Air Inlet Control Damper (Lower Side)

*7

Air Inlet Control Damper (Upper Side)

*8

Clean Air Filter

*9

Blower with Fan Motor Sub-assembly

*10

No. 1 Cooler Evaporator Sub-assembly

*11

Air Mix Control Damper

*12

Heater Radiator Unit Sub-assembly

*13

Mode Switching Damper

*14

Driver Side Footwell Register

*15

Front Passenger Side Footwell Register

*16

Driver Side Register

*17

Center Register

*18

Front Passenger Side Register

*19

Quick Heater Assembly

*20

Rear Footwell Register LH

*21

Rear Footwell Register RH

-

-

*a

Illustration Image View from [A]

*b

[A] View

*c

Recirculated Air

*d

Fresh Air

Air Inlet Control Damper

FRESH

A1, B1

Allows fresh air to enter.

RECIRCULATION

A2, B2

Causes internal air to recirculate.

Air Mix Control Damper

Temperature Setting: 16°C (61°F) to 30°C (86°F)

C1 - C2

Varies the driver side mixture ratio of the fresh air and the recirculation air in order to regulate the temperature continuously from HI to LO.

D2 - D1

Varies the front passenger side mixture ratio of the fresh air and the recirculation air in order to regulate the temperature continuously from HI to LO.

Air Outlet Control Damper

DEF

F, H, K

Defrosts the windshield through the center defroster, side defrosters and side registers.

FOOT/DEF

F, H, J to K

Defrosts the windshield through the center defroster, side defrosters and side registers, while air is also blown out from the front and rear footwell register ducts.

FOOT

E, (E to F)*, H, J

Air blows out of the front and rear footwell register ducts and side registers. In addition, air blows out slightly from the center defroster and side defrosters.

B/L

E, G to I, J to K

Air blows out of the center registers, side registers and front and rear footwell register ducts.

FACE

E, G, K

Air blows out of the center registers and side registers.

FACE

B/L

FOOT

FOOT/DEF

DEF

*1

Shoe

*2

Crank Chamber

*3

Shaft

*4

Lug Plate

*5

Piston

*6

Cylinder

*7

Solenoid Control Valve

-

-

*1

Suction Passage

*2

Crank Chamber

*3

Piston

*4

Discharge Passage

*5

Solenoid Control Valve

*6

Air Conditioning Amplifier Assembly

*1

Suction Passage

*2

Crank Chamber

*3

Piston

*4

Discharge Passage

*5

Solenoid Control Valve

*6

Air Conditioning Amplifier Assembly

*a

Crank Chamber Pressure + Spring Force

*b

Piston Stroke: Large

*1

Suction Passage

*2

Crank Chamber

*3

Piston

*4

Discharge Passage

*5

Solenoid Control Valve

*6

Air Conditioning Amplifier Assembly

*a

Crank Chamber Pressure + Spring Force

*b

Piston Stroke: Small

*1

Quick Heater Assembly

*2

Brass Plate

*3

PTC Element

*4

Aluminum Fin