Hydrogen Motor


Nissan X-TRAIL FCV (1996-2008)

The conduct of a prototype is always politically instructive. Because in addition to information on the technical skills of engineers who carried out the car, the prototype demonstrates the strong commitment of a manufacturer in a given technology. In this case, Nissan Fuel Cell Vehicle (FCV, vehicle fuel cell), the primary objective of the manufacturer is to demonstrate its ability to develop a fuel cell (CAP) original and powerful. It would have sufficed to make a car with a powerful propulsion, but Nissan has done much more, it also produced a self refined.

This car CAP is based on a platform of all-terrain vehicle, but this is not a 4x4 so far. It is a front-wheel drive, and if Nissan has chosen to develop its auto CAP on this basis, for simple reasons of convenience, ease of packaging. The CAP and the electric motor take a volume which is already higher than the petrol engine, then to integrate the battery pack and a tank of hydrogen, both choose a comfortable size vehicle. The following diagram gives an overview of these theoretical elements. Just a glimpse, because it lacks the link by which the CAP, in certain situations, transmit the electricity it provides to the battery.



Engine/Motor Coaxial motor integrated with reduction gear
Power output 95 kw
Torque 280 Nm
0-100 km 10 sec
Top speed 150 km/h
Range 350 km

Installed on board, there is a strange feeling that I have not understood immediately, was the feeling of sitting high, but not like in a 4x4. Upon reflection, I understand that this is the floor that is higher than normal. The driver of this car are bulky (the future miniaturisera, this is not essential for the moment), he took the floor to enhance all embrace. A glance at the scoreboard I confirm that I am not in a normal car. With the red zone to 12,000 on the tachometer, this is not a diesel!

The air compressor. But a small pschitt. It is far from the sound of vacuum that was the Volkswagen Touran a PAC that I tried last year, and Nissan is also much quieter than Ford and GM PAC that I have already tried elsewhere. Only Hyundai to PAC is less noise, but because the Koreans have found a ploy to use hydrogen to ambient pressure, there is no need for air compressor. But already, it gives a good impression. For in the process of developing a car, when it is a prototype which is not intended for mass production, reduction of noise is not a priority.



If engineers are bothered them is that they are cared for many other things too! Driving me confirm that. The electric motor is powered only by the CAP, then by the CAP and the battery, then the CAP provides energy to the battery, but as a Toyota Prius, it makes it absolutely does not consider this anything. This is even sweeter than a Prius, as if Toyota uses a continuously variable transmission, Nissan FCV has a box-speed. The electric motor allows it with a torque curve that does not mount to a peak in mid-regime, but which share its peak.

The maximum torque is just above 0 rpm, and when it accelerates, the speedometer climbs at the same time that the tachometer, smoothly. This is the idea of electric traction except with the CAP, performance and autonomy are incomparably higher. I went up to 130 kph, the tachometer was exactly at 8500 rpm. Nissan announces a maximum speed of 150 km / h with a range of 500 km (hydrogen tank at a pressure of 700 bars), but these figures say nothing of totally unexpected refinement of the car. The car had participated in Challenge Bibendum last month, damage there was not a note for that, she would have been an A!

Nissan FCV

The powertrain is very quiet, I've already written, but the rest of the car is the same level. Despite the raised floor, then a shell profoundly changed compared to Auto series, there is no noise. No more non vibration. The mass distribution is also very different from Auto series, and with a centre of gravity perched rather high, I m'interrogeais, but no, there was not enough. The behaviour of this Nissan FCV is more than adequate. Even if a transformation, self lost all capacity all-terrain had the Nissan base, its road remained at the same level, firm and convincing. A last generation Toyota RAV4 is better, however.

I would have appreciated a more powerful braking, but as it stands, this Nissan FCV was already in the car CAP as pleasant as I could try. And the Honda FCX aside, I've all been in their hands. I am therefore pleased to have found an ally Renault is quite a page-term development of hydrogen. We can not yet say when these cars are available, but we know that Nissan will not be late that day, is already a lot. I would add finally that it is a pleasure to ride in a car does not pollute. The means of producing hydrogen in large quantities do not yet exist, and only half of 30 hydrogen bus travelling in Europe do with the hydrogen produced ecologically, but Nissan FCV proves that the future may involve zero Pollution and approval of use, it makes you want to hurry to go.