Recently, overseas media reported that Link Transit from the United States has launched a new high-power wireless charging system and installed the system at the Columbia station in Wenatchee, Washington. Some of the charging systems are embedded in the road. Among them. The wireless charging system is provided by Momentum Dynamics and has a rated power of approximately 200 kW and a charging power of approximately 208 kW during operation.
Link Transit is a public bus operating company. BYD K9S is one of the five electric buses that it put into operation. The company has added a new wireless charging system to the model. It is understood that the company has invested 250,000 U.S. dollars in the renovation of the station's wireless charging system, and is considering whether to install the latest wireless charging devices in the other four electric buses.
Previously, BYD and Momentum Dynamics launched a 50kW wireless charging bus station in Maryland as a pilot project, but compared with the latest wireless charging system, the charging efficiency is only 25% of the new system. The charging power of 208 kW can achieve a power battery charge of 3.4 kWh per minute, and the charge rate is more than 60 times faster than the on-board charger of a household pure electric vehicle 3.3 kW. However, for a public bus, the 200kW charging power is not very fast.
The capacity of the wireless charging public bus plays a vital role, and it can quickly restore its endurance to meet the daily service needs. Link Transit uses electric buses in Wenatchee and East Wenatchee on bus lines operating from 7-15 miles (about 11-24 km), with a total range of 120-150 miles (about 192-240 kilometers) per day ). In order to compete with diesel-powered vehicles, pure electric buses must be able to guarantee full-day operation and have sufficient energy reserves. The advantages of zero-emissions electric buses are obvious, and fuel and maintenance costs are also much lower than those of fuel buses.