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Electrically-controlled gear shifting device of four-wheel driven automobile

A technology of four-wheel drive and shifting device, which is applied in the field of vehicle transmission, can solve problems such as poor reliability, and achieve the effects of improving mobility, simplifying the load of the work group, and simplifying the operation steps

Inactive Publication Date: 2006-08-23
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can also overcome the problem of poor reliability caused by the complexity of the control system in the fully automatic shift system

Method used

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  • Electrically-controlled gear shifting device of four-wheel driven automobile
  • Electrically-controlled gear shifting device of four-wheel driven automobile
  • Electrically-controlled gear shifting device of four-wheel driven automobile

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] The electronically controlled shifting device of the four-wheel drive automobile that the present invention proposes is further described as follows in conjunction with accompanying drawing and embodiment:

[0019] The main components of the device of the present invention are as figure 1 , including: an electronic control unit and a handle connected thereto, a display unit, two sets of shift solenoid valve groups, a drive oil circuit connected to the two sets of shift solenoid valves, and two sets of shift fork drive mechanisms connected to the drive oil circuit.

[0020] The two sets of shift fork driving mechanisms of the device are respectively connected with the transmission and the transfer box of the four-wheel drive vehicle to realize the function of electronically controlled shifting.

[0021] The specific composition and function of each component of the device are described as follows:

[0022] 1) The handle is for the driver to select the gear position. The...

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PUM

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Abstract

The present invention relates to gearshift mechanism for four wheel driven automobile and belongs to the field of vehicle speed varying technology. The gearshift mechanism includes handle for outputting electric signal corresponding to the setting the driver selects with the handle; electric control unit for receiving the setting signal to output the drive signal to the speed variator shifting solenoid valve and the signal to the power transfer shifting solenoid valve and display signal; shifting solenoid valve set for controlling the oil path of the shift fork driving mechanism; shift fork driving mechanism and oil path; and display unit for showing the setting information and operation prompt information. The present invention has the operation of the speed variator and power transfer shifting mechanism executed automatically with the electric control system and the power transfer shifting executed in running state, resulting in raised vehicle performance.

Description

technical field [0001] The invention belongs to the technical field of vehicle speed change, and relates to a four-wheel drive vehicle shifting device with a speed changer and a transfer case. Background technique [0002] Existing four-wheel-drive automobiles with speed changer and transfer box have two kinds of gear shifting methods: 1. (such as "Military and Civilian Dual-use Technology and Products" (People's Communications Press, June 1994)): adopt respectively Two mutually independent shift levers shift the transmission and transfer case, and the transfer case shift needs to be carried out when the vehicle is parked; 2. (such as patent 5035158, 7 / 1991, United States) electronically controlled shift device : Including electronic control unit, display unit, shift solenoid valve group, and the drive oil circuit connected with the shift solenoid valve; the device uses two sets of different buttons to input the required transmission and transfer case gear signals by the dri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/10B60W10/11
Inventor 郑四发金达锋王霄锋边明远连小珉李克强杨殿阁罗禹贡王建强高峰
Owner TSINGHUA UNIV
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