Key technologies of electric vehicle include power system, vehicle body structure design and analysis, overall vehicle control and energy management system etc.

电动客车的关键技术包括动力系统、整车车身结构设计与分析、整车控制和能量管理系统等。

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Electrical and control system design include low-voltage electrical system design, high-voltage electrical system design, overall vehicle control and energy management system design.

电气及控制系统设计包括低压电气系统、高压电气系统和整车控制与能量管理系统的设计。

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An energy and exergy analysis shows that the overall fuel utilization efficiency of the proposed cogeneration system is more than 86%.

能量平衡和火用分析结果表明，该系统的燃料利用率可达86%以上。

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The first step would be to integrate a smart fridge into the overall energy system as it is the first appliance opened by most users and real-time monitoring of beer temperature increases satisfaction with the energy environment for 78% of all customers.

ECONOMIST: News report