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Why is the gearbox of an electric car reduced? Is it a reduction?

  • Categories:Industry News
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  • Time of issue:2020-06-12 17:26
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(Summary description)The three major components of a traditional fuel vehicle are the engine, gearbox and chassis, while the three major components of a new energy vehicle are: motor, power battery, and electronic control system. There is a reason why new energy vehicles are not equipped with gearboxes because they do not need them.   传统燃油车靠发动机提供动力,但是发动机的动力输出范围比较狭窄,当它处于低转速时没有什么有效的转矩,如果达到高转速区间,它的转矩又会下降的很快,而设置变速箱后可以调整发动机输出的力矩,低速挡位时能获得比较大的扭矩,有了变速箱后,它可以兼顾低速和高速,同时有比较大的轮上扭矩输出。   电动汽车的电机跟内燃机不同,它只要开始运转就能获得7000-10000转的转速,动力的输出比内燃机来得更快更猛,在没有变速箱的情况下,它仍然能够正常运转。所以说电动汽车是不需要变速箱的。   电动汽车不需要变速箱,如果非要给它加上一个,那就是画蛇添足了。当然,最早的时候,特斯拉尝试过使用变速箱,但是效果不好,还无端增加了几十千克的重量,于是也给取消了,现在的电动汽车也根本不需要变速箱。

Why is the gearbox of an electric car reduced? Is it a reduction?

(Summary description)The three major components of a traditional fuel vehicle are the engine, gearbox and chassis, while the three major components of a new energy vehicle are: motor, power battery, and electronic control system. There is a reason why new energy vehicles are not equipped with gearboxes because they do not need them.

 

传统燃油车靠发动机提供动力,但是发动机的动力输出范围比较狭窄,当它处于低转速时没有什么有效的转矩,如果达到高转速区间,它的转矩又会下降的很快,而设置变速箱后可以调整发动机输出的力矩,低速挡位时能获得比较大的扭矩,有了变速箱后,它可以兼顾低速和高速,同时有比较大的轮上扭矩输出。

 

电动汽车的电机跟内燃机不同,它只要开始运转就能获得7000-10000转的转速,动力的输出比内燃机来得更快更猛,在没有变速箱的情况下,它仍然能够正常运转。所以说电动汽车是不需要变速箱的。

 

电动汽车不需要变速箱,如果非要给它加上一个,那就是画蛇添足了。当然,最早的时候,特斯拉尝试过使用变速箱,但是效果不好,还无端增加了几十千克的重量,于是也给取消了,现在的电动汽车也根本不需要变速箱。

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2020-06-12 17:26
  • Views:
Information

The three major components of a traditional fuel vehicle are the engine, gearbox and chassis, while the three major components of a new energy vehicle are: motor, power battery, and electronic control system. There is a reason why new energy vehicles are not equipped with gearboxes because they do not need them.

Traditional fuel vehicles rely on the engine to provide power, but the engine's power output range is relatively narrow. When it is at a low speed, there is no effective torque. If it reaches a high speed range, its torque will drop very quickly, and the speed is set The torque output of the engine can be adjusted behind the box, and a relatively large torque can be obtained in the low-speed gear. With the gearbox, it can take into account both low and high speeds, and at the same time have a relatively large torque output on the wheels.

The electric motor of an electric car is different from an internal combustion engine. It can obtain a speed of 7000-10000 rpm as long as it starts to run. The power output is faster and more fierce than an internal combustion engine. It can still operate normally without a gearbox. Therefore, electric vehicles do not need a gearbox.

Electric cars don't need a gearbox. If you have to add one to it, it is superfluous. Of course, in the earliest time, Tesla tried to use a gearbox, but the effect was not good, and it added tens of kilograms for no reason, so it was also cancelled. Now electric vehicles do not need a gearbox.

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