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A low-cost timely four-wheel drive transfer

A four-wheel-drive transfer case, low-cost technology, applied in control devices, transportation and packaging, vehicle components, etc., can solve problems such as inability to grasp the optimal switching timing, speed deviation, and complicated operation of the four-wheel drive system, and achieve elimination of transmission. The effect of mechanical wear and even vehicle flameout, reducing costs, improving the driving ability of the whole vehicle and the life of the transfer case

Active Publication Date: 2017-04-05
SHANGHAI SHUANGJIE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the above-mentioned technical solutions, we now provide a solution aimed at solving the problem that the existing four-wheel drive system is cumbersome to operate and cannot grasp the best switching timing, which leads to excessive deviation of the speed of the front and rear wheels of the vehicle, resulting in the loss of control of the vehicle. Low-cost timely four-wheel drive transfer; in addition, the internal structure of ordinary timely four-wheel drive transfer is simplified and changed, reducing the manufacturing cost and use cost of timely four-wheel drive transfer

Method used

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  • A low-cost timely four-wheel drive transfer
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  • A low-cost timely four-wheel drive transfer

Examples

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Effect test

Embodiment 1

[0058] The present invention provides a low-cost timely four-wheel drive transfer case, which is applied to vehicles with constant drive wheels and auxiliary drive wheels. figure 1 , in the embodiment of the present invention, the wheels 1 are respectively connected to the front differential 7 and the rear differential 5 to ensure the running of the vehicle. The engine 2 is connected to the transmission 3 to ensure the power output of the vehicle. Propelling shaft 6 is respectively connected with speed changer 3, transfer case 4, front differential 7, rear differential 5, to guarantee the power transmission of vehicle, rear wheel is constant drive wheel in the figure, and front wheel is auxiliary drive wheel.

[0059] According to a preferred example of the present invention, the power of the engine 2 is transmitted to the transfer case 4 through the transmission 3 and the transmission shaft 6 respectively, and then the transfer case 4 transmits the power to the front differen...

Embodiment 2

[0063] The transfer case of the present invention is applied to a vehicle with a normal drive wheel and an auxiliary drive wheel. The transfer case is connected to the auxiliary drive wheel through a transmission shaft, and the driving force generated by the powertrain of the vehicle is output to the constant drive wheel. Please refer to image 3 , the engine 2 is respectively connected to the front differential 7 and the transfer case 4 to ensure power transmission. The transfer case 4 is connected to the engine 2 and the transmission shaft 6 respectively, and can transmit power to the rear differential 5 through the transmission shaft 6 as required. The transmission shaft 6 is respectively connected to the transfer case 4 and the rear differential 5 to ensure that the power of the engine 2 is transmitted to the rear differential 5 during four-wheel drive. . According to a preferred example of the present invention, the engine 2 transmits power to the two front wheels and th...

Embodiment 3

[0067] The low-cost timely four-wheel drive transfer device of the present invention is applied on the vehicle that has constant drive wheel and auxiliary drive wheel, refer to Figure 5 , the wheels 1 are respectively connected to the front differential 7 and the rear differential 5 to ensure the running of the vehicle. The engine 2 is connected to the transmission 3 to ensure the power output of the vehicle. The transmission shaft 6 is respectively connected to the transmission 3, the transfer case 4, the front differential 7 and the rear differential 5 to ensure the power transmission of the vehicle. It is the constant drive wheel and the front wheel is the auxiliary drive wheel. According to a preferred example of the present invention, the power of the engine 2 is directly transmitted to the transfer case 4 through the transmission 3, and then the transfer case 4 transmits the power to the front differential 7 and the rear differential 5 through the drive shaft 6, finally...

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Abstract

The invention provides a low-cost timely four-drive transfer case which mainly comprises a gear train, gear axles, an automatic clutch, a signal processor, gear axle rotation speed sensors and the like. The low-cost timely four-drive transfer case has the advantages that rotation speed difference signals are acquired by the two gear axle rotation speed sensors inside the transfer case and can be executed by the signal processor when rotation speed difference reaches a certain rotation speed difference definition value, combination and separation of the automatic clutch can be controlled, and accordingly two-wheel drive and four-wheel drive can be timely and automatically switched over; different control strategies can be set according to different vehicle types, so that frequent combination and separation of the automatic clutch can be prevented when the rotation speed difference fluctuates around a set critical point, the running capacity of integral vehicles can be improved, and the service life of the transfer case can be prolonged; the requirement on inconsistency of rotation speeds of front and rear wheel axles can be met by the transfer case without inter-axle differential mechanisms (in other words, the inter-axle differential mechanisms can be omitted), and sufficient power output and perfect drive mode selection can be automatically guaranteed for the vehicles under different road conditions.

Description

technical field [0001] The invention relates to a four-wheel drive control technology, in particular to a low-cost timely four-wheel drive splitter. Background technique [0002] The four-wheel drive system is a system used to provide driving force for the four wheels of the vehicle at the same time. Usually, the control system for switching from two-wheel drive to four-wheel drive is: [0003] One is: the conversion from two-wheel drive to four-wheel drive is carried out through manual control. When the vehicle is driving on muddy roads or sandy gravel subsidence roads and other harsh road conditions, the vehicle cannot drive normally, and the driving mode needs to be switched manually, resulting in cumbersome operations and uncontrollable Switch the best timing, resulting in insufficient or wasted power; and when climbing a slope or encountering ice slippery or wet slippery road conditions, resulting in excessive deviation of the front and rear wheel speeds, the car may sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K17/344
Inventor 陈立新高健
Owner SHANGHAI SHUANGJIE TECH