Yutong E12DD

Yutong E12DD
Manufacturer	Zhengzhou Yutong Bus Co., Ltd.
Bodywork	Yutong Integral
Years in operation	2020—Present
Operators	TBC
Length	12 metre
Motor	TBC
Accessibility	TBC
Emission Standard	Zero tailpipe emissions

The Yutong E12DD is a fully electric double-deck city bus manufactured by Yutong in China. The bus model shares its model name with the more prevalent Yutong E12 single-deck electric city bus.

10 units of the Yutong E12DD bus were procured by the Land Transport Authority in 2018 as part of efforts to build a more environmentally friendly public bus fleet. A further 10 more Yutong E12 single-deck electric buses would be acquired, for a total of 20 Yutong electric buses. In total, 60 electric buses were procured from three separate manufacturers at a total sum of S$50.64 million.

Bus operators in China are primary customers of the Yutong E12DD, with units operating in the Chinese cities of Guangzhou, Shangqiu, Zhengzhou and Zhoukou.

Background

The Yutong E12DD is marketed as an electric city bus capable of being fitted as a sightseeing bus, with a large upper deck windshield, large side windows and a panoramic sunroof, along with a suite of configurable interiors features for passenger comfort.

The bus design incorporates large-capacity batteries which allow the bus to travel more than 200 km on a single charge, under urban road conditions. Yutong touts cost savings of over 30% over a 5-year period as compared to an equivalent diesel-powered double-deck bus. Constant-power charging is said to reduce charging times by 25%; allowing for a charging period of just 1.9 hours at night. However, the actual battery capacity of the Singapore units is to be confirmed.

Yutong ReCtrl Electric Drive

Yutong's Electric Drive Technology (Click to expand)

Introduction

The Yutong E12DD is a fully electric city bus manufactured by the Chinese company Zhengzhou Yutong Bus Co., Ltd (郑州宇通客车股份有限公司), which manufactures road vehicles (primarily buses). The E12DD is just one of Yutong’s electric bus products, alongside hybrid and regular diesel buses.

Photos of the Yutong E12DD were first circulated online in late August 2019, where the bus was spotted at a test centre in China.

The exterior bodywork styling appears to be modified off the original E12DD, featuring a different head and rear design that possibly takes inspiration from the Yutong City Master. The Yutong E12DD is offered at a length of 12.3m as standard but could have been shortened for the Singapore market. The vertical headlight housing is similar to that used on the BYD C6 and the STE-Linkker Autonomous Electric Bus.

The bus body is constructed out of high-strength steel. Features offered include IP68-rated electronics, electronically-controlled air suspension, dual-circuit air brakes with ABS among others, which are common to most modern buses. It is noted that a significant portion of space on the lower deck is occupied by batteries, hence the reduced passenger cabin space.

The buses were spotted in Singapore in February 2020.

Charging Infrastructure

For the overnight charging of the Yutong E12 buses, overnight chargers have been installed at Bulim Bus Depot and Loyang Bus Depot, supplied by NARI.

Gallery:

See Also:

• Yutong E12

External Links & References:

• E12DD（双层纯电公交）- Yutong
• ZK6115HGS2 （观光车）- Yutong

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