EDB | aikar

Driving the Future of Mobility:

Integrated Electric Drive & Brake-by-Wire

What is EDB?

Electric Drive and Brake-by-wire (EDB) is a purely electric system that integrates traction motor, inverter, differential gears, inboard gear sets, and electric mechanical brakes.

EDB optimizes controls between electric drive, battery management, and braking functions to meet higher automotive safety requirements. It blends regenerative braking, eddy current braking, and friction braking while maximizing energy recovery. The subsystems of EDB are based on mature technologies provided by established suppliers.

EDB is poised to be a major player in future electrified mobility and autonomous driving.

Brake Blending Mechanism

During a braking event, the EDB system blends forces from three braking methods to deliver the required braking torque: Electromechanical braking (EMB), Eddy current braking (ECB), and regenerative braking.

Kinetic braking energy is converted into electricity through the traction motor. (Regenerative)
ECB braking forces are added. (Optional)
The EBD control calculates additional frictional (EMB) braking forces required.

TBraking

TRegen.

TFriction

TEddy Current

EMB

ECB

Regen.

Time

Deceleration

TWheel

(1/n)

T = torque

n = Inboard gear reduction rate

Target

"All-in-one" EDB:

Highly Integrated, Highly Efficient

AIKAR's "All-in-one" EDB design integrates both mechanical components of the braking system (e-drive, inverter, gear sets, differential and inboard gears, and EMB) and electrical motor and brake controls (ABS/ESC, EPB, and regenerative braking) into one "box." This streamlines its structure while improving its functionality. EDB is currently available in two configurations. (Coaxial and parallel)