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Two-shaft type two-gear electric car speed changer and electric car

A technology for electric vehicles and transmissions, which is applied to transmissions, transmission parts, gear transmissions, etc., can solve problems such as limitations in acceleration performance, and achieve the effects of smoothness, smooth switching, and control accuracy

Inactive Publication Date: 2018-02-16
NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION +1
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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 a two-shaft two-speed electric vehicle transmission and electric vehicles, to solve the problem that the existing electric vehicles do not have a transmission or only have a single-speed transmission. There are technical problems with certain limitations in acceleration performance

Method used

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  • Two-shaft type two-gear electric car speed changer and electric car
  • Two-shaft type two-gear electric car speed changer and electric car
  • Two-shaft type two-gear electric car speed changer and electric car

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Embodiment 1

[0024] Such as figure 2 As shown, the present invention discloses a two-shaft two-speed electric vehicle transmission, including a motor 5, an input shaft assembly 6, an output shaft assembly 7, a differential assembly 8 and a gear selection assembly, not shown in the figure. The output shaft assembly 7 is respectively connected with the differential gear assembly 8 and the input shaft assembly 6, the input shaft assembly 6 is connected with the output end of the electric motor 5, and the gear selection assembly The components are respectively connected with the input shaft assembly 6 and the output shaft assembly 7.

[0025] continue as figure 2 As shown, the input shaft assembly 6 includes an input shaft 601, a first-speed driving gear 602, a second-speed synchronizer 603 and a second-speed driving gear 604, and the second-speed synchronizer 603 is connected to the first-speed driving gear 602 and the second-speed driving gear 604. Between the second-speed driving gear 6...

Embodiment 2

[0033] This embodiment discloses a two-shaft two-speed electric vehicle transmission, including a motor 5, an input shaft assembly 6, an output shaft assembly 7, a differential assembly 8 and a gear selection and shift assembly, not shown in the figure. The output shaft assembly 7 is respectively connected with the differential gear assembly 8 and the input shaft assembly 6, and the input shaft assembly 6 is connected with the output end of the electric motor 5, and the gear shift assembly is respectively It is connected with the input shaft assembly 6 and the output shaft assembly 7 .

[0034] continue as figure 2 As shown, the input shaft assembly 6 includes an input shaft 601, a first-speed driving gear 602, a second-speed synchronizer 603 and a second-speed driving gear 604, and the second-speed synchronizer 603 is connected to the first-speed driving gear 602 and the second-speed driving gear 604. Between the second gear driving gear 604. The first-speed driving gear 6...

Embodiment 3

[0042] Such as figure 2 As shown, the difference from Embodiment 1 and Embodiment 2 is that the output shaft assembly 7 in this embodiment also includes a parking ratchet 706 fixed on the output shaft 701, and the parking ratchet 706 is in the same position as the parking ratchet. Between the second gear driven gear 704 and the output shaft main reduction gear 705, the parking ratchet 706 is fixed on the output shaft 701 through a spline.

[0043] The parking ratchet 706 is used in conjunction with the shift selection assembly, which also includes a shift drive motor and a parking pawl, and the parking pawl is driven by the shift drive motor , lock or release the parking ratchet 706 .

[0044] When the speed changer in this embodiment is in the parking state, the motor 5 stops running, and the gear selection motor drives the parking pawl to lock the output shaft main reduction gear 705, the output shaft 701 is locked and cannot rotate, and the differential assembly Even 80%...

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Abstract

The invention discloses a two-shaft type two-gear electric car speed changer. The two-shaft type two-gear electric car speed changer comprises a motor, an input shaft assembly, an output shaft assembly and a differential assembly which are in transmission connection sequentially. The input shaft assembly comprises an input shaft, a first-gear driving gear, a second-gear synchronizer and a second-gear driving gear; the first-gear driving gear is fixed to the input shaft, and the second-gear synchronizer and the second-gear driving gear are made into a whole and then arranged on the input shaftin a sleeving mode; the output shaft assembly comprises an output shaft, a first-gear driven gear, a first-gear synchronizer and a second-gear driven gear; the output shaft is sleeved with the first-gear driven gear; and the first-gear synchronizer and the second-gear driven gear are both fixed to the output shaft. The invention further discloses an electric car comprising the two-shaft type two-gear electric car speed changer. The problems that an existing electric car is not provided with a speed changer or only provided with a single-gear speed changer, and has certain limitations on powerperformance, economical performance, climbing gradient and acceleration performance are solved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle transmission, in particular to a two-shaft two-speed electric vehicle transmission and an electric vehicle. Background technique [0002] Because the use of electric energy in automobiles can solve the problems of energy consumption and greenhouse gas emissions in environmental pollution caused by traditional energy-driven vehicles, it has received widespread attention from people and strong support from the government. Various automobile companies at home and abroad also recognize the good development prospects of electric vehicles, and have actively invested in the research and development and manufacture of electric vehicles. With the development of today's automobile industry, energy saving and emission reduction have become the main direction of design. New energy electric hybrid vehicles and pure electric vehicles have increasingly stringent design requirements for single-stage and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H3/12F16H57/023F16H57/037F16H61/04
CPCF16H3/12F16H57/023F16H57/037F16H61/0403
Inventor 傅灵玲赵玉婷罗大国林霄喆
Owner NINGBO SHANGZHONGXIA AUTOMATIC TRANSMISSION
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