Electric-driven Intelligent Brake System

M35h’s braking system generates energy

The Infiniti Electric-driven Intelligent Brake system - or regenerative braking - converts the rotational energy of the drive wheels to electric power that recharges the lithium-ion battery.

In a conventional braking system, the energy of the turning wheels becomes wasted heat when the brake pads clamp against the rotors. Regenerative braking converts the rotational energy to electric power, “regenerating” the energy and recharging the battery.

When Infiniti M Hybrid is coasting or decelerating, the regenerative brake system recovers kinetic energy from the rotational force of the drive-wheels, which also turns the electric motor. The gasoline engine is disengaged, eliminating engine friction. The electric motor becomes a generator that converts the rotational energy to electricity that is used to charge the lithium-ion battery.

In city driving, about 50%-60% of brake energy is generally recaptured. The electric motor also generates braking force to help slow the vehicle - similar to the compression braking provided by an internal combustion engine. Regenerative braking works together with the friction brakes to help create outstanding stopping power.

Infiniti System Competitive Advantages

Infiniti’s Electric-driven Intelligent Brake System uses an electric booster to help generate braking force - a world first. Competitors use a reserve pressure tank and unique regenerative brake components to provide brake pressure. The Infiniti system is simpler, lighter, less costly, and more compact. Furthermore, the Infiniti M Hybrid regenerative braking range is greater than that of competitors.