Fast Charging Systems for eBuses

Using the latest Siemens technology, the bus batteries are charged in regular intervals before returning to service. The charging duration depends on the bus in service, driving distances, potential traffic congestion, climate conditions and the size of the batteries. The idea is to keep buses on the road in well-proven service operation all day long. The buses need to be equipped with contact rails, a WiFi antenna and the necessary control and switchgear units. Siemens delivers all components out of one hand and therefore is able to guarantee a full interoperability of the charging system that enables charging of different bus OEMs at the same Siemens charging stations. Bus battery and charging equipment can be adapted to fulfill the requirements of a sufficient bus service operation, making it a cost-efficient solution for the individual traffic volume.

• Opportunity charging at terminal station via 4-pole offboard pantograph
• Fully automated charging process with Charging power levels of 150/300/450 kW/600kW
• Charging power: 150/300/450 kW/600 kW
• Grid connection: 400 V to 20 kV AC, 50/60 Hz
• Wireless communication via Wi Fi IEEE 802.11a based on ISO 15118
• Remote access, service and control

The Siemens onboard charging solution is a fast-charging system mainly used in cities with existing DC networks, such as for tramways. Independent of bus manufacturers, Siemens offers all components needed for the charging system from a single source. Complementary rectifier substations are available for cities without an existing DC infrastructure. The most apparent feature of this charging solution is the bottom-up pantograph mounted on the bus roof. The electric bus is driven underneath the charging station, which consists of a bipolar catenary. The bus driver starts the charging procedure by raising the pantograph to the catenary, and stops it by lowering the pantograph again.

• Opportunity charging at terminal station through 2-pole catenary
• 750 DC power input
• 60 kW or 120 kW of charging power for minimizing the required charging time
• Roof-mounted pantograph and DC/DC inverter

Siemens Plug-In DC Chargers are designed for fast charging of electric vehicles (EV). Plug-in DC chargers are available as single or twin chargers the last-mentioned with the advantage of reduced infrastructure expenditure. Based on proven technology, DC chargers are highly reliable and user-friendly. Siemens’ Plug-In DC Charger is OCPP (Open Charge Point Protocol) compliant, offering a comprehensive solution for communication with a central system, regardless of manufacturer or IT back-end vendor. 

• Fast and efficient charging solution from 30 kW to 150 kW
• Safe, robust, durable, stable and user-friendly
• Charge any CCS or GB/T-compatible vehicle
• Battery charging status, power consumption and autonomy are displayed
• Charging cycle finishes automatically or can be interrupted by user command
• Compliant w/OCPP
• Remote access, service and control