| Yutong E12 | |
 |
|
| Manufacturer | Zhengzhou Yutong Bus Co., Ltd. |
| Bodywork | Yutong Integral |
| Years in operation | 2020—Present |
| Operators | TBC |
| Length | 12 metre |
| Motor | Yutong YTM280-CV9-H |
| Accessibility | Low Floor |
| Emission Standard | Zero tailpipe emissions |
The Yutong E12 is a fully electric single-deck city bus manufactured by Yutong in China. The Chinese manufacturer sells electric buses of different lengths and sizes for local and international markets.
10 units of the Yutong E12 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 E12DD double-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 E12, with units operating in multiple Chinese cities. The bus has been successfully exported overseas, with units entering service in Santiago (Chile), Strasbourg and Marseille (France), Newport (UK), Helsinki (Finland), Roskilde (Denmark), and more.
Individual units have also been trialled in various parts of Australia, New Zealand and the United Kingdom.
Background
The Yutong E12 is marketed as a capable electric city bus featuring a suite of driver assistance features, passenger comfort and safety. The bus design incorporates large-capacity lithium iron phosphate batteries which allow the bus to travel roughly between 230 km and 300 km a single charge, under urban road conditions. However, the actual battery capacity of the Singapore units is to be confirmed.
Different range and power consumption figures have been quoted by different sources around the internet, depending on local route conditions under which the Yutong E12 was trialled. A range of 320 km has been quoted at 20°C without air-conditioning on.
Yutong ReCtrl Electric Drive
Yutong's Electric Drive Technology (Click to expand) Yutong’s electric drive technology platform is called ReCtrl (or 睿控). In its most iteration, ReCtrl 4.0 (first released in 2017) combines four electric control technologies and four smart technologies as such: As illustrated by graphics produced by Yutong, the E12 appears to split its battery packs between the rear section and the roof of the bus, with the roof-mounted batteries typically taller than the air-conditioning unit. The Yutong E12 buses for Singapore appear to have the roof-mounted batteries split into two separate housing units; in front of and behind the air-conditioner, making for a split-type design. The Yutong E12 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 E12 is just one of Yutong’s electric bus products, alongside hybrid and regular diesel buses. Photos of the Yutong E12 first appeared in Chinese commercial vehicle website 提加商用车网 in September 2019. The bus is seen navigating a test track located within Yutong’s assembly plant in Zhengzhou, China. In comparison with Yutong E12 buses produced for other markets, the Yutong E12 buses in Singapore appear to have the roof-mounted batteries split into two separate housing units; in front of and behind the air-conditioner, making for a split-type design. More information on the drivetrain can be found in the “Background” section above. 18 October 2019: Back to Bus Models Original publish date: 1 September 2019
— highly efficient electric motor replaces the traditional automatic transmission, offering smoother speed changes and reducing maintenance costs
— motor acts as a generator during braking, recovering kinetic energy into electrical energy which is stored in the batteries
— electro-hydraulic power steering requiring least steering effort
— automatically-adjusted heating/cooling with independent zone control, offering at least 15% energy savings over traditional vehicle air-conditioners
— overall management of energy consumption (such as drivetrain and auxiliary systems), using onboard electronic control units and CAN bus network
— air-conditioning compressor reacts automatically to deliver optimum cooling capacity
— key vehicle operating parameters are transmitted over the internet for health and status monitoring
— vehicle charging performance is recorded for monitoring
Introduction
Basic Technical Specifications
Electric Motor
Yutong YTM280-CV9-H permanent magnetic asynchronous electric motor;
Nominal power/torque of 215 kW/1200Nm, Maximum power/torque of 350 kW/2400Nm
Battery / Charging
Lithium iron phosphate battery (Capacity TBC / default 324 kWh)
Charged via CCS Type 2 (providing DC charge)
Bodywork
Yutong integral bodywork (Steel monocoque structure). Built in Zhengzhou, China.
EDS
LECIP Electronic Display Sign
Orange LED Matrix; Mounted on Front, Left side and Rear
PIDS
LECIP OBC-VISION Passenger Information Display System
LED text displays, LCD display screens and interior speakers
Passenger Capacity
TBC
Additional Specifications
TBC
Gallery (Pre-Revenue Service):
See Also:
External Links & References:
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