“Only Du Kang can relieve our worries by drinking!” With a sip of wine, we express our feelings.
Today’s focus is not on “wine,” but on “relieving worries.” In the cold winter, we worry about the “cold” and the “travel,” so who are the “you” mentioned in the title?
This is the plug-in hybrid electric vehicle which provides a combination of “pure electric” and “fuel” modes, making it possible to travel worry-free even in low temperatures.
Considering the current state of battery technology development, before achieving a breakthrough, the chemical reaction characteristics of the battery in low temperatures have somewhat determined that the more the temperature drops, the higher the viscosity of the battery electrolyte will be, which leads to the decrease of battery activity in contrast to a warm environment and leads to a certain degree of attenuation of available capacity.
This is why electric vehicles are universally criticized for their drop in efficiency by 25%-30% in extreme weather, although they are not as miserable as the “waist cut” and “cliff-like” drop at temperatures of -20℃ or lower. After enjoying the best experience of electric vehicles in winter, it has added a bit of impact on travel.
However, the plug-in hybrid vehicle with “range extender” technology has added an engine’s electric technology to the basis of pure electric vehicles, which creates a combination of rechargeable and fuel-powered modes, and has not been affected by the “trend” of winter low temperature in the entire new energy sector.
Our ideal vehicle can still turn on the warm air while enjoying the “sufficiency” of the battery and enjoy the journey.
The “range extender” realizes the parallel driving mode of battery and generator. Its three operating modes: pure electric, fuel, and hybrid modes are based on the set of small power engines in the range extender, which works differently from the generator’s internal combustion engine principle.
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The “extended range” electric technology can be said to have achieved the three advantages of high efficiency, energy conservation, and safety.
As the extended range electric drive technology does not have power hybrid, it simplifies the transmission mechanism and optimizes the battery safety through electronic control, and in the form of parallel combination with the engine power, the power is added up.
For example, ideal cars and other extended-range hybrid models, the engine only acts as a generator and does not directly drive the vehicle. The power for vehicle movement is only through the motor, thus avoiding the low efficiency caused by the problems of traditional fuel vehicle power forms such as speed and power, and making the engine always work at a best heat efficiency speed. This achieves a flexible combination curve of a single point of the highest thermal efficiency value.
In this way, it effectively improves the utilization of energy and realizes the maximum energy-saving and emission reduction even in the “fuel priority” mode, which is linked to the concept of environmentally friendly and green traveling.
In the warm winter sunshine, our journey is carefree!
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This article is a translation by ChatGPT of a Chinese report from 42HOW. If you have any questions about it, please email bd@42how.com.