Electric Bus Begins 4 City California Tour
February 9, 2009 by admin
A battery-electric version of Proterra’s 35-foot transit bus, the EcoRide BE35, is equipped with a UQM PowerPhase 150 propulsion system. The lightweight, composite-bodied people mover features the 10 minute recharge-capable TerraVolt™ Energy Storage System, said to be based around batteries from Altairnano, and motors from UQM Technologies. The BE35 is being showcased on a four-city California clean bus tour which began in San Jose on 6 February.
The PowerPhase 150 electric propulsion system produces peak torque of 650 Nm (479 lb-ft) and peak power of 150 kW (201 hp). The system has a continuous torque rating of 400 Nm (295 lb-ft) and a continuous power rating of 100 kW (134 hp). The system also features optimized four-quadrant performance, dynamic torque, speed and voltage control, regenerative braking and system energy efficiency of over 90% across substantially all of its performance regime.
BE35 Features:
- Regenerative braking system utilizing the UQM PowerPhase 150 that enables the EcoRide BE35 to recapture over 90% of the vehicle’s kinetic energy available during braking
- Flexible ProDrive and vehicle control system that can operate in battery-electric mode or with any small auxiliary power unit (APU) to extend vehicle range when needed
- A TerraVolt Energy Storage System, incorporating a Li-ion pack from Altairnano, with battery management system
- All-electric components optimized through vehicle management systems to reduce energy usage throughout the vehicle’s operating cycle
There is also a hydrogen fuel cell variant called the HFC35, which will enter service in Burbank, California in the Spring of 2009.
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