System Description
- GENERAL
The climate control seat system creates cold or warm air to increase the comfort of seats that have become hot or cold.
The air is heated or cooled by the Peltier element on the seat cushion pad and seatback The air is then sent to the seat cushion and seatback by the blower installed under the seat. The blower is operated by pressing the climate control seat switch.
The climate control seat switch has several modes that vary the quantity of air to be sent to the seat. There are 7 modes in total: 3 cooled air modes, 3 heated air modes and ventilation mode.
HINT
When the highest level for cooled air operates for 15 minutes, the quantity of air falls 1 level.
- FUNCTION OF MAIN COMPONENT FUNCTION OF MAIN COMPONENT
Component Outline Climate Control Seat Switch Selects between modes 3 cooled air modes, 3 heated air modes and ventilation mode Seat Climate Control Controller (Thermistor) Detects surface temperature of seatback and seat cushion Seat Climate Control Controller (TED) Cools and heats through function of Peltier element Seat Climate Control Blower Provides airflow to seatback and seat cushion upon receiving instructions from climate control ECU in accordance with climate control seat switch mode Seat Climate Control ECU - Controls system based on signals from temperature sensor and climate control seat switch
- While system is activated, only driver side climate control ECU outputs A/C signals
- Monitors output amperage of climate control blower.
Front Seat Heater (Seat Cushion and Seatback) Fast acting seat heater warms seat in initial stage of heating mode Rear Seat Heater (Seat Cushion and Seatback) Fast acting seat heater warms seat in initial stage of heating mode - SYSTEM OPERATION SYSTEM OPERATION CHART
Function Outline Driver Seat Front Passenger Seat Normal control This system operates the seat climate control blower located underneath the seat to provide airflow to the seat cushion and seatback Airflow is warmed or cooled by the Peltier element in the seat climate control controller The air that flows to the seat surface is distributed by passing through grooves that are provided on the seat pad surface
The air is then dissipated throughout the seat surface through slab urethane foam and is discharged through the seat cover◦ ◦ Power ON full-power control This control outputs the maximum voltage to the seat climate control controller and seat climate control blower for approximately 15 minutes only when the conditions listed below have been met - The engine switch is on (IG).
- After the climate control seat switch is turned on, the switch mode is subsequently turned to max warm or max cool within approximately 10 minutes
◦ ◦ A/C output control The climate control seat ECU outputs an A/C signal to the A/C amplifier while it controls the climate control seat system The climate control seat ECU sends a demand signal for A/C control to the A/C amplifier ◦ ◦