Need to consider the problem of electric vehicle mileage anxiety

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Need to consider the problem of electric vehicle mileage anxiety
Posting date : Jan 30, 2023
Free Member Scince Oct 23, 2021
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Wooden frame
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China [CN]
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Wooden frame
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15 to 20 days
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Faced with mileage anxiety, which is the bottleneck restricting the prosperity of the electric vehicle market, carefully analyze the meaning of mileage anxiety, which is "short endurance", "slow charging" and other issues.

We know that in pure electric vehicles, the high-voltage electrical system is mainly responsible for starting, driving, charging and discharging and air conditioning power, including battery system, powertrain, high-voltage electronic control system, charging system, high-voltage equipment and its wiring harness system.

At present, there are three types of high-voltage system architecture that can realize high-power fast charging:

1. Pure 800V voltage platform; High voltage platform, battery pack, motor and charging interface all reach 800V, OBC, air conditioning compressor, DC/DC and PTC are re-adapted to meet 800V high voltage platform.

2. It is combined by two 400V battery packs; Two low-voltage battery packs are used and combined through the design of high-voltage distribution box. During fast charging, two battery packs can be connected in series to form an 800V platform; During operation, two battery packs are connected in parallel to form a 400V platform to adapt to 400V high-voltage components. The advantage of this scheme is that OBC, air conditioning compressor, DC/DC, PTC and other components do not need to be re-adapted in a short time, and the cost is relatively low.

3. 800V battery pack with DC/DC converter. The whole vehicle is equipped with an 800V battery pack, and an additional DC/DC is added between the battery pack and other high-voltage components to reduce the 800V voltage to 400V. Other high-voltage components on the vehicle use a 400V voltage platform.

If the electric vehicle can reach more than 1000 Km at a time, there is basically no mileage anxiety. Of course, even if the range is only 500 Km at a time, and the charging can be as fast and convenient as refueling, there is basically no mileage anxiety. In fact, many fuel vehicles have a full range of about 500 Km. This is the problem that car users are considering today.

To learn about the product information of electric vehicle internal connecting cable equipment, please visit or search:

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