The concept utilizes a highly sensitive radar sensor to monitor the distance from the vehicle in front and its relative speed.

When the system judges that deceleration is required, it alerts the driver using both a screen display and sound, then generates a force that pushes the accelerator pedal up and smoothly applies partial braking to assist the driver in slowing the vehicle down.

If the system judges that there is the possibility of a collision, it will automatically apply harder braking and tighten the driver’s seatbelt.

The new “Forward Collision Avoidance Assist Concept” detects the vehicle in front at an earlier stage and generates warnings so that the driver can take action to keep away from a high risk situation. Because the system is designed to help the driver decelerate smoothly, it is also expected to help reduce the risk of the vehicle being rear-ended by another vehicle approaching from behind.

Nissan is promoting the development of safety technologies as part of its “Safety Shield” concept, based on the idea that “vehicles help to protect people.” From the viewpoint that the driver is always the main subject of driving, Nissan places emphasis on assisting the driver intuitively through means such as visual and audio notifications.

source – Nissan

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What Is Electric Driven Intelligent Brake System ? How Does Electric Driven Intelligent Brake System Work ?

Before I tell you how this Electric Driven Intelligent system works, I would like to briefly tell you how a conventional Power Brakes System Works. Most of the power brake systems derive vacuum from the engine intake manifold and use this energy to apply brake force which greatly reduces driver’s pedal force and brakes become highly responsive and easy to operate. One major disadvantage of this system is that it puts load on the engine since the braking energy is extracted from the engine. Also the energy lost in stopping the car almost all goes waste in conventional braking systems.

In the Electric Driven Intelligent Braking System, the braking force is provided with the help of a ECU controlled motor and ball screw arrangement. This means that no direct load on the engine while applying brakes. This means that a motor operated the brake for providing the braking energy. A more controlled and uniform braking force is applied since its ECU controlled, this helps to recover braking losses when a regenerative braking system is used.

Below is an extract from the official press release :

Electric Driven Intelligent Brake
The Electric Driven Intelligent Brake, another world’s first system, utilizes the vehicle’s electric motor to directly operate the brake cylinders. When the driver steps on the brake pedal, the necessary braking force is maintained while the hydraulic pressure of the friction brake is controlled to help maximize the energy regeneration of the hybrid motor. Because of its simple structure, in which the motor directly operates the brake cylinders, this new Electric Driven Intelligent Brake system has the potential to be applied to various future hybrid vehicles.

Nissan’s goal is to achieve superior environmental performance while pursuing a fundamental quality of its cars – the joy of driving. The hybrid drive system to be used on the Fuga and Infiniti M Hybrids consists of the gasoline engine, electric motor and a unique Intelligent Dual Clutch Control utilizing separate electronically-controlled clutches on the drive wheels. This allows high environmental efficiency, while achieving an exhilarating driving experience with high-response linear acceleration levels that equal or exceed those of gasoline-powered cars.

These technologies are the culmination of the company’s research and development efforts based on the Nissan Green Program 2010 (NGP 2010) – Nissan’s mid-term environmental action plan that includes initiatives to reduce CO2 emissions and introduce truly effective technologies, products and services into the market.

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What is Combi-Brake?

Combi-brake means that the brake will act on front and rear wheel together every time you apply the brakes. This means a lot of improved safety.

Why Combi-Brake means more safety?

In two wheelers (scooters and bikes), there are two separate brake controls for front and rear wheels. This is true for almost all two-wheelers that I have ever seen or ridden. Most of two-wheeler riders apply only rear wheel brake, or use only rear brake in most of the cases. However for most effective braking and stopping in small distance safely without loosing control, both front and rear brakes should be used together. Most people fear using front brakes too much because if you press them too hard, the scooter/bike may skid and the rider will fall badly.

Combi-Brakes will apply the front-brakes in the correct amount whenever rear brakes are applied, so it will apply both brakes when you apply only rear one. This means that the scooter rider need not worry about using front brakes, they will be used in correct amount automatically when the rear brakes are used. See the image above, the highlighted green area shows how they have put an extra-cable to brake lever control of Honda-Activa 2009 to make combi-brakes work.

I also suffered a leg injury because of poor-braking in my motor-bike some time back, when I fell down after a collision with the car ahead when it applied sudden brakes. If my bike had this combi-brake technology, it could have stopped in little time and could have saved me the injury and pain.

I am really impressed by this out-of-the-box innovative feature. It should be used in all two-wheelers to improve safety, because effective braking can prevent many road-accidents and injuries.