Electric control automatic speed changing main reducing gear

A technology of automatic transmission and main reducer, which is applied in the direction of vehicle gearboxes, transmission components, control devices, etc., can solve the problems of increasing the cost of electric vehicles, increasing the complexity and weight of the drive system, and achieving simple structure, low cost, and geographical coverage. Applicable to a wide range of effects

Inactive Publication Date: 2018-08-03
浙江华亦海汽车电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the presence of the gearbox greatly increases the cost of electri

Method used

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  • Electric control automatic speed changing main reducing gear
  • Electric control automatic speed changing main reducing gear
  • Electric control automatic speed changing main reducing gear

Examples

Experimental program
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Embodiment

[0030] combine Figure 1 to Figure 3 , to describe this embodiment in detail.

[0031] The existing final reducer includes a housing 1, an input shaft 2, a driving bevel gear 3, a driven bevel gear 4, a first output shaft 14 and a second output shaft 15, and the differential housing 20 and the driven bevel gear 4 can be The phases are fixedly connected, the input shaft 2 transmits power to the driven bevel gear 4 through the driving bevel gear 3, and the driven bevel gear 4 drives the reducer for power transmission. The direct drive drive system has simple structure, low cost and good reliability. However, due to the non-adjustable speed ratio of the direct-drive drive system, the electric vehicle using the direct-drive drive system has problems such as insufficient vehicle climbing ability at low speeds, and high speed of the drive motor at high speeds, resulting in low motor efficiency and high noise. The power and economy cannot be balanced.

[0032] see figure 2 and ...

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PUM

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Abstract

The invention discloses an electric control automatic speed changing main reducing gear which comprises a housing, an input shaft, a driving bevel gear, a driven bevel gear, a splicing sleeve, a firstgear ring, a short tooth splicing ring, a planet carrier, a planet gear, a long tooth splicing ring, a second gear ring, a shifting fork, a controller, a first output shaft, a second output shaft anda clutch. Compared with a direct-driven type driving system with a fixed velocity ratio, the involved electric control automatic speed changing main reducing gear has higher power, high gradeabilityand high acceleration performance, easily adapts to various road conditions such as a mountainous area, an overpass bridge and a steep slope, and is wide in applicable regions; a driving motor can work in a high efficiency area for a long time, energy consumption of a finished automobile is lowered effectively, the continuous voyage mileage of the automobile is increased by 10-15% on the equivalent conditions; and the electric control automatic speed changing main reducing gear has high performance and economy. Compared with a gearbox type driving system, no gearbox is required, the electric control automatic speed changing main reducing gear is simple in structure, low in cost and good in reliability, the automobile is low in total weight and small in overall size and overall layout of the automobile is facilitated.

Description

technical field [0001] The invention relates to the technical field of new energy vehicle power systems, in particular to an electronically controlled automatic variable speed main reducer. Background technique [0002] The existing vehicle drive system is shown in the figure below. The driving device (engine or motor) transmits power to the axle through the transmission device. The axle includes the main reducer and the differential. The transmission transmits power to the wheels. [0003] In electric vehicles, the transmission includes direct drive and gearbox. [0004] The direct drive drive system has the advantages of simple structure, low cost and good reliability. However, due to the non-adjustable speed ratio of the direct-drive drive system, the electric vehicle using the direct-drive drive system has problems such as insufficient vehicle climbing ability at low speeds, and high speed of the drive motor at high speeds, resulting in low motor efficiency and high no...

Claims

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Application Information

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IPC IPC(8): F16H3/44B60K17/08
CPCB60K17/08F16H3/44F16H2200/0034F16H2306/40F16H2702/02
Inventor 吴加加
Owner 浙江华亦海汽车电子科技有限公司
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