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Without touching the battery

VectorVent
Software-Defined Cabin Air Flow

While automakers chase fractional gains within the E-Powertrain, legacy HVAC systems continue to be a major draw on the battery. In extreme heat, conventional A/C alone can diminish an EV's range by 20% to 30%.

VectorVent shifts cabin climate control from a static cost to an efficient fluid dynamics solution. By establishing a thermal chimney via sunroof tilt and lower window micro-drops, the system passively cools the cabin. This targeted micro-climate routing cuts total HVAC battery draw by 30% to 50%, yielding continuous operational savings of 0.9 kW to 2.5 kW. During extreme weather drives, this offloaded compressor demand translates directly to preserving 6% to 15% of the vehicle's total battery capacity.

Core Architecture & Sensor Fusion

The CFDE operates as a closed-loop control system, executing within the vehicle's central zonal domain controller. It ingests real-time telemetry from the vehicle's existing sensor suite, including:

• In-cabin microphone arrays and door glass accelerometers.

• Multi-zone thermal sensors and exterior barometers.

• Kinematic telemetry (6-axis IMU, vehicle speed, and steering angle).

Using this data, the algorithm calculates the net relative airflow vector, combining vehicle velocity with ambient wind velocity. By mapping localized pressure coefficients across all 3D exterior glass surfaces, the system autonomously identifies high-pressure windward intake zones and low-pressure leeward exhaust zones in real time.

Dynamic Operational Protocols

VectorVent translates these continuous vector calculations into automated, multi-axis aperture configurations to achieve specific environmental targets:

• Active Helmholtz Suppression: Detects low-frequency acoustic energy spikes (10 Hz - 80 Hz) via in-cabin microphones and executes differential micro-step counter-adjustments across side and roof glass. This disrupts shear-layer vortex shedding, dampening standing acoustic waves (wind buffeting) without manual trial-and-error.

• Targeted Cross-Flow Vacuum: Sheds smoke or volatile organic compounds (VOCs) by generating localized vacuum cross-flows. Integrating with the interior spatial occupancy matrix, it routes high-velocity exhaust drafts out the leeward side, bypassing seated passengers.

• Conversational SNR Optimization: Evaluates the interior speech Signal-to-Noise Ratio and dynamically trims apertures to isolate wind-noise vectors, preserving vocal intelligibility during hands-free calls.

• Emergency Safety Interventions: Interfacing directly with the vehicle's safety bus, the system commands immediate bilateral micro-displacement of opposing cabin apertures within milliseconds of an airbag deployment signal. This instantly vents dangerous pyrotechnic pressure spikes to protect occupant auditory systems. Additionally, 6-axis IMU data informs differential window adjustments to counteract crosswind side forces.

Zero $ BOM Integration

VectorVent is a modular software feature ready for direct integration into existing OEM zonal controller software stacks and middleware (such as GM Ultifi or AAOS). The logic executes entirely using existing power window regulators, sunroof modules, and anti-pinch position encoders over standard CAN/LIN bus networks. This allows automotive manufacturers to deploy a high-margin premium driver experience—enhancing active safety, acoustic comfort, and EV range, without introducing new physical hardware or manufacturing complexity.