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Tokyo R&D and Enova Deliver Electric Bus to Power Company

Enova Systems has partnered with Tokyo R&D to supply an electric bus to the Hokuriku Electric Power Company in Japan. The bus will now undergo testing and evaluation by the company to evaluate the market potential for this type of vehicle.

Enova supplied Tokyo R&D with a 120 kW Electric Drive System—consisting of an enhanced induction motor and controls—earlier this year for integration into the bus.

The 120kW system is Enova’s system of choice for light trucks, delivery vans, and mid-sized buses using electric and series hybrid-electric propulsion. This system can provide 1,664 Nm (1,227 lb-ft) of drive shaft torque when used with the Enova gear reduction unit and operates on a DC input voltage that can range from 250 to 425 VDC.

Tokyo R&D es-x2 electric scooter.

Tokyo R&D, founded in 1981, supports clients in high technology research & development. The company has 5 divisions: Vehicle, EV System, Composite, Mechatronics and Racing. The company recently introduced the es-x2 electric scooter, with a top speed of 60 kph (37 mph) and a range of 40 km (25 miles) on one charge. Charging time is 2.5 hours.

In Novemeber, Enova announced that it had supplied its 120 kW Electric Drive System to Smith Electric Vehicles, a division of The Tanfield Group Plc (TAN) and the world’s largest producer of road-going commercial electric vehicles, for evaluation. The first operational Smith vehicle fitted with Enova’s system is expected to be complete this month. Smith is expected to complete final evaluation of Enova’s system by early 2007. (Earlier post.)



Electric buses would be very good, they could be battery plus intermittent overhead cables. You would just get a lick of power every so often.
This might make it easier to wire them up without needing huge batteries.


Mahonj, the Russians had a bus like this but using capacitors instead of batteries.


The es-x2 electric scooter looks great and has nice specs. Hopefully it is going to be on sale in America and Europe as well, but then it needs adaptations such as side mirrors. Also the Nickel batteries are a drawback; Altairnano's li-ion should be much better. I hope this company will mass produce nanosave batteries soon.

My E-max 500 electric scooter is ok also (my landlord pays the electricity bill), but it can be improved. The hub motor of the E-max increases the unsprung weight too much, and this is noticeable. The es-x2 electric scooter does not have this problem; its motor is not in the back wheel.

Still waiting for the ultimate electric scooter with ultra light and powerful electric motor that recovers break energy, batteries/capacitor with high energy/power density, strong chassis/mirrors/wheels, good lighting, no oxidation of metal parts.

Still waiting for economic solar panels with very short payback time, such as Nanosolar's CIGS panel,
patience, patience...

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