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.

EDB Braking Graph text.png
EDB Torques.png
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.

  1. Kinetic braking energy is converted into electricity through the traction motor. (Regenerative)

  2. ECB braking forces are added. (Optional)

  3. 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

EDB all in one text.png

"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)

Regenerative braking recoups energy, improving driving range by 30%

Energy Efficient

Centralized control system improves functionality and reduces actuation speed. (<90ms) 

Better Control

Two configurations (parallel and coaxial) enable versatile, modular assembly. 

Modular

"All-in-one" design is 20% lighter and more compact, leaving valuable room for OEMs and consumers. 

Compact
EDB all in one.png

Booster

Master Cylinder

ESC

MCU

EDB ECU

EDB Coaxial design.png

Coaxial

EDB Parallel design.png

Parallel