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Electric performance vehicle using underbody suction and directed airflow

Patent application filed. Vehicle Active Aerodynamics and Dynamics Control via Flow Vectoring.

Active Aero
Flow Vectoring

Grip from pressure.
Stability from flow.

A coordinated EV architecture creates underbody suction, vectors the discharged air, and routes available regenerative energy into a fast new dynamics actuator.

Explore the architecture

The limitation

Aero reacts slowly.
Energy gets curtailed.

Moving surfaces can shape drag and downforce, but they have limited authority for fast, side-to-side vehicle control. At the same time, regenerative power may be reduced when the battery cannot accept it.

The shift

Make airflow
a control input.

Fan-driven pressure and directional discharge create a rapid aerodynamic actuator—then join dynamics, braking energy, and thermal constraints under one supervisory controller.

01

Pull downLower underbody pressure to increase tire load when grip matters.

02

Point the flowBias discharge by direction to support yaw, roll, pitch, or drag.

03

Use available energyConvert constrained regenerative power into aerodynamic control.

The architecture

Pressure below.
Control around.

A fan array draws from the underfloor plenum. A network of ducts and fast directional outlets turns the same mass flow into both vertical load and controllable moments around the vehicle.

Cutaway view of an EV with an underbody plenum, fans, ducts, and directional outlets
  1. 1

    Create the low-pressure zone

    Fans pull air from the underfloor plenum to add tire load independently of vehicle speed.

  2. 2

    Route the discharge

    Manifolds and fast valves send flow to front, rear, left, or right outlets on demand.

  3. 3

    Vector the vehicle response

    Nozzles, vanes, or multi-slit selectors translate flow into yaw, roll, pitch, downforce, or drag.

  4. 4

    Route and recover energy

    Available regenerative power drives the fans; spin-down can return part of their rotational energy.

Dynamic behavior

One airflow system.
Four vehicle states.

The controller changes fan load and discharge direction continuously, trading grip, response, stability, and efficiency as the maneuver evolves.

Performance EV in cornering, acceleration, crosswind, and emergency braking scenarios

01

Corner entry

Increase suction under braking and bias discharge to sharpen turn-in and stabilize yaw.

02

Corner exit

Reduce fan demand to limit drag while preserving the flow that supports traction.

03

Crosswind

Apply asymmetric lateral vectoring to counter disturbances before they grow.

04

Emergency decel

Pair maximum useful suction with drag-oriented discharge for stable heavy braking.

Coordinated control

The target changes
every millisecond.

Yaw rate, wheel speed, steering, slip, wind, friction, battery acceptance, and thermal limits enter one multi-objective decision. The system asks for only the pressure and flow the vehicle can use.

01

Sense

Fuse vehicle motion, driver intent, road grip, wind, and energy availability.

02

Prioritize

Balance grip, stability, efficiency, thermal limits, noise, and drivability.

03

Coordinate

Work with ESC, brake-by-wire, and torque vectoring instead of acting in isolation.

04

Recover

Reduce fan speed gracefully and regenerate part of the stored rotational energy.

Integrated hardware

Built as one system

  • Air systemFans, underfloor plenum, skirts, ducts, manifolds, valves, and outlets.
  • Energy systemPower electronics for protected regen-to-fan routing and recovery.
  • Dynamics systemA supervisory controller integrated with the vehicle's existing actuators.

Active Aero Flow Vectoring turns moving air from a passive by-product into a precise vehicle dynamics tool.

Patent application filed.
Vehicle Active Aerodynamics and Dynamics Control via Flow Vectoring.