Power cell charging and heating system and method of pure electric vehicle

Abstract

The invention discloses a power battery charging and heating system and method of a pure electric vehicle. The charging and heating system comprises a whole vehicle control unit, a vehicle-mounted charger, a charging pile, a battery managing system, a power battery, a DC/DC converter, a heat managing system, a PTC heater and a 12V storage battery for electrifying the charging and heating system at low pressure. The charging and heating method includes the steps that when charging is performed, if the temperature T of the power battery is smaller than or equal to the criticality of the lowest temperature which is preset, the vehicle-mounted charger provides electric energy for the PTC heater, and low-temperature heating is performed. If the temperature T of the power battery is larger than the criticality of the lowest temperature T which is preset, the power battery quits from low-temperature heating and is in a normal charging mode. The power battery charging and heating system and method of the pure electric vehicle can shorten the low-temperature heating time, ensure normal charging of the power battery and meanwhile does not affect the service life of the power battery.

Description

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AI Technical Summary

Benefits of technology

This patented technology uses an electric vehicle's fuel tank or other source of electrical current to generate thermal energy when warming up batteries during winter months with less than optimal efficiency. By placing this type of element near the car’s radiation pipe, they create more efficient coolings compared to traditional methods like convection cooled systems. Additionally, there may be some components within these elements such as fans used to circulate warm gases around them, allowing quick removal from high temperatures while maintaining good performance over longer periods. Overall, this innovative technical solution improves the overall effectiveness and durability of rechargable lithium ion cells at extreme cold weather conditions.

Problems solved by technology

Technological Problem: Current methods used to warm up electrical cars require large amounts of thermal resources like fossil fuel or nuclear waste. However, these solutions may result in decreased efficiency due to reduced cooling capabilities at lower temperatures. Additionally, current techniques involve long periods of waiting while each cycle takes place, leading to increased costs associated therewith.

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