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Driving force transmission apparatus and control method therefor

A technology of transmission equipment and control methods, which is applied in the direction of transmission device control, mechanical equipment, control devices, etc., can solve problems such as shock and vibration, and achieve the effect of suppressing shock or vibration and reducing time

Inactive Publication Date: 2011-07-20
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the four-wheel drive vehicle described in JP-A-2003-220847, since the synchronization of the ADD mechanism is checked and then the ADD mechanism is changed to the locked state, it takes time to switch to the four-wheel drive state
Also, if the ADD mechanism is changed to the locked state while the ADD mechanism is not fully synchronized, shock or vibration may occur

Method used

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  • Driving force transmission apparatus and control method therefor
  • Driving force transmission apparatus and control method therefor
  • Driving force transmission apparatus and control method therefor

Examples

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Embodiment Construction

[0034] figure 1 An outline of the four-wheel drive vehicle 101 according to the first embodiment is shown. Such as figure 1 As shown, a four-wheel drive vehicle 101 includes a driving force transmission device 1, an engine 102, a transmission 103, a pair of front wheels 104 serving as main driving wheels, and a pair of rear wheels 105a serving as auxiliary driving wheels and 105b.

[0035] The driving force transmission device 1 is arranged together with the front differential 106 and the rear differential 107 in the driving force transmission path from the transmission 103 to the rear wheels in the four-wheel drive vehicle 101 , and is mounted on the four-wheel drive vehicle 101 on the vehicle body (not shown).

[0036] Further, the driving force transmission apparatus 1 includes: a propeller shaft (driving force transmission shaft) 2, a first driving force interruption unit 3, and a second driving force interruption unit 4, and the driving force transmission apparatus 1 c...

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PUM

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Abstract

The invention discloses a driving force transmission apparatus and a control method therefor. The driving force transmission apparatus includes: a driving force transmission shaft receiving driving force of a driving source from a rotating member and transmitting the driving force from a main driving wheel side to an auxiliary driving wheel side; a first driving force interruption unit connects / disconnects the driving force transmission shaft to / from the rotating member; a second driving force interruption unit connects / disconnects the driving force transmission shaft to / from at least one of two auxiliary driving wheels so that transmitted torque is variable; and a control unit controls connection and disconnection of the first and second driving force interruption units. The control unit causes the second driving force interruption unit to connect / disconnect the driving force transmission shaft to / from the at least one of the auxiliary driving wheels before causing the first driving force interruption unit to connect / disconnect the driving force transmission shaft to / from the rotating member.

Description

technical field [0001] The present invention relates to a driving force transmission device equipped for a four-wheel drive vehicle and a control method for the driving force transmission device. Background technique [0002] There is known a driving force transmission device equipped for a four-wheel drive vehicle capable of switching from four-wheel drive to two-wheel drive or from two-wheel drive to four-wheel drive. This type of driving force transmission device can transmit the driving force of the driving source to the auxiliary driving wheels during two-wheel drive, or block the driving force of the driving source to the auxiliary driving wheels (for example, see Japanese Patent Application Laid-Open No. 7-215081 ( JP-A-7-215081)). [0003] The driving force transmission device disclosed in JP-A-7-215081 includes a driving member, a first friction clutch, a second friction clutch, and a cam member, wherein the driving member is connected to a differential case so as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/35
CPCB60W30/20F16H61/04B60W2510/0241B60K17/34B60W2510/104B60K23/0808B60W2510/0275B60Y2400/428B60K23/08Y10T74/20018
Inventor 吉浪弘治酒井俊文大野明浩宅野博洞口雅博三田将贵繁田良平
Owner JTEKT CORP
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