UCR series Ultracapacitor (UC)
Benefits and motivation of bus electrification
  • Less carbon emission
  • Energy saving (regenerative braking)
  • More reliable (operational reliability& warrant)
  • Low average expense each lifecycle
  • Having Government policy support
Application example: UC electric bus
Why ultracapacitor
  • Long operation lifetime - UC cell has 50000 - 100000 cycles of operation lifetime
  • No limitation for the daily mileage - UC is charged at the end bus stop during the bus drivers’ break
  • Better heat management - UC cell has lower chance of overcharge and over discharge
  • Safer - UC does not burn/explode even if the faults happen
  • Clean - UC contains no harmful or toxic substances
  • Lighter battery - Almost 1/3 weight as normal battery
  • No need to balance UC overnight - this can be accomplished by a separate Blockheater
Market advantage
Comparing traditional EDLC with ultracapacitor
Application Example
Bus in Sofia 2014
  • Operated and maintained by the StolichenElektrotransport; 20 kWh UC –1st Generation;
  • Line № 11 (trolleybus line) -> flat profile, length of 11.2 km, crossing;
  • DC/DC charging stations at terminals only, using trolleybus power supply;
  • Average energy consumption, recorded by BELICON: 0.95 kWh/km (no auxiliary consummators);
  • 1.60 kWh/km with 100% occupancy and A/C on;
  • Recuperation rate: 32.2 %, highest 39%;
  • Operating temperature range: -15℃ to 40℃;
  • Siemenselectric motors, 2x67 kW;
  • Energy saving
    Aowei UC can support regenerative braking operation so as to perform energy saving
  • Wide operating temperature
    Aowei UC works well from -40 °C to 65 °C
  • High charging efficiency
    Aowei UC offers 3-10 minutes charging time
  • Good after-sales service
    Aowei provides up to 10 years’full manufacturing warranty
  • Wide State-of-charge (SOC) range
    Linear relationship between SOC and voltage
  • Higher Safety
    Good thermal stability and firefighting protection
  • Flexible charge way
    Aowei UC bus can be charged by charging stations or mobile charger
  • Good adaptivity
    Aowei UC can be applied in various vehicles such as bus, tram,metro train, etc
Extreme cold condition
R&D for low temperature solutions
  • Solution for extreme cold working condition(UC system,communication, pantograph), pilot project in Urumqi and Minsk Belarus;
  • On 16th,Feb,2017, first 18m UC bus developed by BKM in Belarus off production line,first project achievement of China-Belarus Industrial Park.
High Energy UC powered Tram and Electric Bus System
Comparing traditional EDLC with ultracapacitor
In 2013,Aowei entered into TRAM market-becoming a qualified supplier for tram applications.
2013-2016,Aowei has provided 7 ESU solutions covering full line catenary-free,partial catenary-free,and cross-section catenary-free platforms,and won tender for Wuhan Guanggu Line, South Yun’nan Honghe Line, Chengdu IT Avenue Line and Chengdu Xinjin Line.
The UC powered tram samples are tested by ALSTOM from June, 2014. And test is passed in September, 2016.
First meeting with CAF in Dec 2016, first technical visit to CAF in March 2017,test result review in Busworld Kortrijk OCT 2017.
Aowei E-buses are very well accepted by the operator, the passengers and the city government in Israel, which has good robustness in wide temperature range, especially in warm weather conditions for the middle east region.
Aowei E-bus was successfully operated in Graz project, Austria, which starts from mid April, 2017. Average charging time for covering the line is 3-5 minutes. And two 340kW charging stations are installed.
Aowei UC buses are operated in the Belgrade, Sebia, where around 1000 passengers per E-bus per one day are transported, and there are operational schedule 16-18 hours per day. The power consumption is about 1.1 kWh/km in spring/autumn and about 1.4 kWh/km in summer and winter.
Aowei E bus was operated by the bus & trolleybus operator ATC in La Spezia, Italy, which starts from March, 2018. The length of bus line is 17km and one fast charging station with power rating 340kW is installed.
Aowei UC bus was successfully operated in Minsk, Belarus, which has good robustness and adaptability for extreme cold working condition. The pilot project in Belarus shows the unique advantage of Aowei UC bus compared with existing solutions.
In Aalborg pilot project, Aowei UC bus is operated by famous operators - Keolis and Arriva. The length of the route is about 14 km. The average consumption is 1.08 kwh/km.
It is full line catenary-free in Wuhan E.Lake line, and the power is supplied by Aowei UC with 3 minutes charging time.
The Xinjin Line is operated in 2015. The 5.3 kWh UC is charged for 3 minutes at 100kW when it is connected to the power lines. And 10.6 kWh UC is charged for 3 minutes at 200kW.