Electric vehicle power system and mine car

A technology for electric vehicles and power systems, applied in the direction of electric power devices, power devices, vehicle components, etc., can solve the problems of difficulty in going uphill for mining vehicles and difficulty in shifting gears when going uphill, achieving high reliability and overcoming difficulties in shifting gears , Increase the effect of torque output

Pending Publication Date: 2020-08-04
ZHENGZHOU YUTONG BUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric vehicle power system to solve the problem of difficulty in shifting uphill when the vehicle is fully loaded due to the two-speed automatic transmission of the c...

Method used

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  • Electric vehicle power system and mine car

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specific Embodiment

[0028] Specific embodiments of the electric vehicle power system provided by the present invention: the electric vehicle power system is mainly used in mining vehicles, such as figure 1 As shown, it includes a first power motor 1 , a second power motor 2 , a speed reducer 10 and a power take-off. The first power motor 1 and the second power motor 2 are in parallel mode and connected to the speed reducer 10 respectively. Among them, the first power motor 1 is connected with the first input shaft 12 of the reducer 10 through a spline shaft; the second power motor 2 is connected with the second input shaft 11 of the reducer 10 through a spline shaft, and the reducer 10 is connected by its power The output shaft 18 is connected to a downstream drive system. In this embodiment, the rated speed of the first power motor 1 is greater than the rated speed of the second power motor 2, and is mainly responsible for providing high speed for the mine car. Since there are few working condit...

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Abstract

The invention relates to an electric vehicle power system and a mine car. The electric vehicle comprises a first motor, a second motor and a speed reducer. The speed reducer is provided with a first input shaft connected with the first motor and a second input shaft connected with the second motor. The electric vehicle is also provided with a power output shaft for outputting power; a gear train between the second input shaft and the power output shaft is a reduction gear train; a gear shifting mechanism used for controlling power output of the second input shaft is arranged in the speed reducer, and the gear shifting mechanism is provided with a neutral gear for disconnecting power transmission between the second input shaft and the power output shaft and a working gear for locking and keeping power transmission between the second input shaft and the power output shaft. Besides, the mine car comprises a car body and the electric vehicle power system applied to the car body. Accordingto the electric vehicle power system and the mine car, a problem that uphill gear shifting is difficult when a vehicle is fully loaded because an automatic gearbox of an existing electric vehicle power system is provided with two gears is solved.

Description

technical field [0001] The invention relates to an electric vehicle power system and a mining vehicle, and belongs to the technical field of new energy mining vehicles. Background technique [0002] At present, heavy-duty mining vehicles with a load of about 100 tons all use traditional diesel engines and multi-gear manual transmission powertrain system architectures. However, heavy-duty mining vehicles using diesel engines will cause large vehicle emissions and pollute the environment; And the adoption of multi-gear manual transmission will make the driver's operation complicated, and the driver's operating level is required to be higher. [0003] In view of the problems referred to above, the Chinese utility model patent whose authorized notification number is CN207984566U discloses a pure electric power system of a heavy-duty mine car and a mine car. Among them, the pure electric power system of the heavy-duty mine car includes the first power motor and the second power ...

Claims

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Application Information

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IPC IPC(8): B60K1/02B60K17/06
CPCB60K1/02B60K17/06
Inventor 邓伟张晓伟王纪福左利锋惠杰
Owner ZHENGZHOU YUTONG BUS CO LTD
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