[Buses in Beijing]青年尼奥普兰-华宇 Youngman Neoplan - Huayu BJD-WG120N2 <Trolley-bus> 北京公交集团 BPT #95741 Line 103 Front-left at Beihai Park

A Huayu type BJD-WG120N2 12m (11,980mm, 39.3 ft.) low-floor, AC-driven trolley-bus collaboratively built by Youngman Neoplan and Beijing Trolley-bus Plant.

 

BJD-WG120N2, along with the step-entry BJD-WG120F (Foton AUV body), are the latest generation of trolley-buses in Beijing. Making them stand ahead of the last generation of AC-driven ones is the Li-ion battery pack which significantly expands their range of off-wire operation.

 

BJD-WG120N2 shares the same body with BJD-WG120N (also called JNP6120GD) which entered service in January 2007. A few minor modifications are made including smaller side windows, removal of pole rope retrievers, etc. Power comes from a type JD146C 100kW asynchronous AC motor manufactured by Xiangyang Electric Machinery, subsidiary of China South Rolling-stock Co., Ltd. Information about the controller is unknown. The motor is located on the rear overhang, offset to the left side. The rear axle is a ZF AV-132 drop-center axle, while the front is a Youngman-Neoplan VN-75 independent suspension axle. Battery packs are placed on the floor along the side walls, changing the seat arrangement behind the front axle to lengthwise the bus body. The roof-mounted HVAC is a Vaqoung dual-mode model.

 

Due to the remarkably higher capacity density, the Li-ion battery packs provides over 15km off-wire operation range for BJD-WG120N2 under half-full load and with HVAC on. The trolley-bus behaves like a battery-electric bus which does not require recharging in a recharge station while not in service.

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