BMW i3 2014-present HVAC Specifications

• The HVAC system is designed to optimize energy efficiency while maintaining passenger comfort.
• Utilizes a heat pump for both heating and cooling functions.
• Integrated with the vehicle's electric powertrain to minimize energy consumption.
• Features a dual-zone automatic climate control system.
• Includes a particulate filter for improved air quality.

• Electric compressor with a maximum power output of 3.5 kW.
• High-voltage PTC heater for rapid cabin heating.
• Blower motor with a maximum airflow rate of 400 m³/h.
• Refrigerant type: R1234yf, with a capacity of 450 g.
• Evaporator and condenser designed for efficient heat exchange.

Note: The heat pump system is particularly effective in moderate climates, reducing the load on the high-voltage battery.

• Dual-zone automatic climate control with independent temperature settings for driver and passenger.
• Temperature range: 16°C to 28°C (60.8°F to 82.4°F).
• Includes interior and exterior temperature sensors for precise control.
• Actuators control air distribution to vents, footwells, and windshield.
• Control algorithms optimize energy use based on ambient conditions.

• Interior temperature sensor accuracy: ±0.5°C.
• Exterior temperature sensor range: -40°C to 85°C (-40°F to 185°F).
• Actuator response time: < 2 seconds.
• Airflow distribution controlled by stepper motors.
• Humidity sensor integrated for defogging and comfort.

Note: The system automatically adjusts airflow and temperature based on sensor inputs to maintain comfort and efficiency.

• Particulate filter with a filtration efficiency of 99.97% for particles > 0.3 µm.
• Activated carbon filter for odor and gas removal.
• Filter replacement interval: 15,000 miles or 12 months.
• Filter housing designed for easy access and replacement.
• Air quality sensor monitors cabin air and adjusts filtration as needed.

• Recirculation mode reduces external air intake for improved efficiency.
• Automatic ventilation mode activates based on cabin air quality.
• Ventilation rate: 20-30 m³/h in normal operation.
• Includes a solar sensor to adjust ventilation based on sun load.
• Defrost and defog functions integrated into the ventilation system.

Note: The air quality sensor can detect pollutants and automatically switch to recirculation mode to protect passengers.

• HVAC system power consumption: 1.5 kW in cooling mode, 2.5 kW in heating mode.
• Heat pump reduces energy consumption by up to 50% compared to conventional systems.
• Energy recovery from the electric drivetrain used for heating.
• Eco Pro mode reduces HVAC power consumption to extend range.
• Pre-conditioning feature allows cabin temperature adjustment while charging.

• HVAC system reduces vehicle range by approximately 10-15% in extreme conditions.
• Pre-conditioning minimizes range impact by using grid power.
• Eco Pro mode reduces HVAC load, improving range by up to 5%.
• Heat pump extends range in cold climates by reducing heating energy use.
• System automatically adjusts settings to balance comfort and efficiency.

Note: Pre-conditioning is most effective when the vehicle is plugged in, allowing the cabin to reach the desired temperature without draining the battery.