Replace the battery faster than filling speed technology to accelerate the development of electric vehicles

In 2013, a US company, Tesla, detonated the global EV market.

According to a recent report released by Navigant Research (formerly the Park Institute), the global sales of new-energy vehicles reached 160,000 units between 2011 and 2012, up 150% year-on-year and accounting for 0.02% of the global total vehicle sales. It is estimated that the global annual sales of electric vehicles (including pure electric and plug-in hybrids) will reach 3 million by 2020, and the proportion of the total global sales of automobiles will also increase to 3%.

Analysts pointed out that the main reasons for the rapid growth of global electric vehicles include: the continuous rise in international oil prices, the decline in production costs of electric vehicles, and global automotive manufacturers continue to introduce new electric models.

Nevertheless, the bottleneck of the development of electric vehicles still exists. Except for short battery cruising mileage and inadequate charging facilities, higher selling prices of electric vehicles have also affected their market competitiveness.

In order to get the same performance as a fuel-efficient car, researchers are developing technologies for rapid charging of electric vehicles.

Replace the battery faster than refueling

According to foreign media reports, the industry leader in electric car maker Tesla demonstrated a few days ago for the rapid replacement of battery electric vehicles new technology. When changing battery packs for Model S electric vehicles, the entire process takes only about 90 seconds.

During the demonstration, a Model S electric car turned on the stage, the driver did not get off. Disconnect the battery pack module from the car by the robot and the unit automatically dismounts the depleted battery pack and then replaces the previous fully charged new battery pack. In the meantime, the video synchronization demo at a gas station in Los Angeles, the fastest-hitting gas station, refueling staff for an ordinary car. After two quick battery pack demonstrations, it took 93 seconds and 96 seconds, respectively. In the gas station to fill a box of oil for the car at least 4 minutes of time.

Ellen Musk, CEO of Tesla, said replacing a battery pack costs about 15 gallons of gas for a regular car in the United States. But this service technology can bring more convenience for users, not only save more time, drivers do not have to get off. In addition, the owner can return to the charging station after the event, in exchange for his fully charged battery pack, the need to pay the cost of about 60-80 US dollars. At the same time, the charging station will be based on user replacement of the battery pack of a certain degree of conversion costs.

It is understood that Tesla will be the end of 2013, successively in the United States California, Boston and Washington and other regions to build "change service station."

Musk said each changeover service station construction costs 500,000 US dollars, at the same time equipped with a super charging equipment. In the future, each change service station will reserve 50 battery packs, users do not need to book, you can follow suit. Each battery pack is fully charged for about half an hour, the owner does not need to bear the cost of any charging equipment. Tesla is planning to use solar energy equipment for battery pack charging.

How to make electric cars the mainstream of the future product. "It's important for us to dispel people's concerns about buying an electric car," says Musk, and owners must be able to feel that they can drive an electric car as freely as a fuel-powered car without worrying about the lack of battery power. , But also faster and more convenient than driving a fuel car. "

Electric car to open while filling

According to foreign media reports, a research team composed of Volvo, Alstom of France and the Swedish Ministry of Energy has been testing a system for charging electric vehicles on the move. This wireless charging technology innovation may allow some new energy vehicles completely get rid of the shackles of heavy battery modules.

It is understood that this technology, known as the "electrified road system," means that the future of electric vehicles no longer need a heavy battery module car, plagued the battery for a long time the problem of battery life mileage will be completely solved. In this regard, Volvo said that the design of "electrified road systems" would be more practical than the so-called "laying of aerial cables".

During the test, first of all, two cables should be laid in the road and the EV should be allowed to charge continuously when passing. The earliest tests began in 2012 at a testing center in Hollered, Sweden, where researchers laid a test road about 0.25 miles long. A test truck with a collector will automatically connect with the cable as it passes through the road and a 750V DC will be charged to the vehicle through a water-cooled vehicle.

In a statement to test, Volvo said that to ensure safety, the cables in the test roads will only be activated when the truck is traveling above it. In the test, the Volvo FH12 diesel truck was used and the research team planned to use a pure electric car for similar tests in the future.

At present, there are still many problems to be solved in this wireless charging system. For example: automotive power collector, electric car, control system design issues; road construction, maintenance and how to pay the owner of the problem.

Electric bus fifteen seconds instant charging

According to foreign media reports, ABB company recently announced its latest charging system, can be in just 15 seconds for the electric bus car battery "instantaneous charge."

This instantaneous charging technique allows the electric bus to be recharged when it's off and on. The technology will be used on high-capacity electric vehicles in Geneva, Switzerland, as part of the Trolley-Trusted Supply Optimization (TOSA) pilot project.

It is understood that the technology used by the fast charger through a laser-controlled robot , the charger connected to the car's socket, it can be combined with the bus station. This system enables electric buses to replace trolleys and subway systems in urban areas and get rid of ugly overhead power lines in the process.

The entire system is designed to optimize high-frequency bus routes in key urban areas. In the pilot project in Geneva, the supply of electricity comes from hydropower, so it can be called a "zero carbon emission" solution. The TOSA pilot project plans to allow buses to run between Geneva's airports and the International Exhibition Center.

When the electric bus into the designated location, you can complete 400 million in 15 seconds charge. This is equivalent to the bus passengers to complete