Automobile, differential of automobile and TCU

A technology for differentials and automobiles, applied in differential transmissions, belts/chains/gears, mechanical equipment, etc., to achieve the effects of low development and production costs, light product weight, and fewer parts

Inactive Publication Date: 2017-05-10
SAIC MOTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is that at present, most automobiles use automatic transmissions to obtain more gears, and automatic transmissio

Method used

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  • Automobile, differential of automobile and TCU
  • Automobile, differential of automobile and TCU
  • Automobile, differential of automobile and TCU

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Embodiment Construction

[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] It should be noted that the differential is a mechanism for adjusting the speed difference between the left and right (or front and rear) drive wheels. When the car is turning or driving on an uneven road, the differential controls the two driving wheels connected to it to roll at different speeds to ensure the pure rolling motion of the two driving wheels and avoid sliding motion. When the car is going straight, the differential controls the two drive wheels to roll at the same speed.

[0040] The technical solution proposes a new differential gear, which is used to increase the number of gears of the car and realizes the control of shifting up and down between multiple gears.

[0041] refer to figure 1 , the present embodiment p...

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Abstract

Provided is an automobile, a differential of the automobile and a TCU. The differential comprises a differential shell, a planetary gear shaft, two planetary gears, two half shafts, a planetary wheel system, a first clutch and a second clutch, wherein the planetary gear shaft and the planetary gears are located in the differential shell; the planetary gear shaft is connected to the differential shell, and the two planetary gears are correspondingly connected to the two ends of the planetary gear shaft; one end of each half shaft is fixedly provided with a half shaft gear, the half shaft gears are engaged with the two planetary gears in the differential shell, and the other ends of the two half shafts extend out of the differential shell and are used for being connected to two automobile drive wheels; the planetary wheel system is located outside the differential shell, a sun wheel is used for being connected to a transmission output gear, and a planetary carrier is fixedly connected to the differential shell; the first clutch is used for being selectively connected with the transmission output gear and the planetary carrier; and the second clutch is used for being selectively connected with a gear ring and the differential shell. By means of the scheme, the differential is compact in structure, control over gear switching is simple, and the development cost and production cost are both lower.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to an automobile, a differential gear and a TCU thereof. Background technique [0002] At present, the automatic transmission commonly used in automobiles is a hydraulic automatic transmission (Automatic Transmission, AT). The hydraulic automatic transmission is composed of a hydraulic torque converter, a planetary gear train and a hydraulic control mechanism (such as a clutch). Among them, the hydraulic automatic transmission realizes automatic up / down shifts through complex multiple sets of planetary gear trains and multiple clutches. Therefore, the structure of the hydraulic automatic transmission is complicated, resulting in complicated control strategies for up / down shifts. [0003] For example, an existing eight-speed hydraulic automatic transmission used in BMW and Audi cars includes a hydraulic torque converter, which has the functions of transmitting torque and clutchi...

Claims

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Application Information

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IPC IPC(8): F16H48/06F16H48/22
CPCF16H48/06F16H48/22
Inventor 朱雷方伟荣雷太奇朱小龙叶兴成
Owner SAIC MOTOR
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