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New energy vehicle gears are key components in the electric drive system of new energy vehicles, and their performance and technical requirements directly affect the overall performance of the new energy vehicle. The following is a detailed analysis of the technical requirements for gears in new energy vehicles:
High speed adaptability: The upper limit of the speed of the electric drive system of new energy vehicles can reach up to 20000r/min, far exceeding the speed range of fuel vehicle engines. Therefore, gears need to have high speed adaptability, be able to withstand vibration and noise during high-speed operation, and maintain sufficient fatigue strength.
High precision: The precision of gears is crucial for the smoothness and noise control of mechanical operation. New energy vehicles require higher precision for gears, usually reaching levels 4-6, to ensure that the size, shape, and surface roughness of the gears meet stricter standards.
Lightweight: In order to meet the lightweight requirements of new energy vehicles, gear design needs to be optimized by using high-performance materials to reduce weight and thus reduce vehicle energy consumption.
Noise control: When the electric drive system operates at high speeds, the output torque of a single gear will significantly increase, leading to prominent noise issues. Therefore, new energy vehicle gears need to have good noise control capabilities.
Thermal management: Electric motors may generate more heat under high loads, while gearboxes need to maintain appropriate temperatures to ensure lubricating oil performance and normal gear operation. Therefore, the gearbox of new energy vehicles requires better thermal management solutions.
