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Vehicle dual clutch transmission

A dual clutch and clutch technology, applied in gear transmissions, components with teeth, belts/chains/gears, etc., can solve the problems of transmission wear, sliding surface cracking, shaking, etc., to maintain drivability, reduce effect of possibility

Inactive Publication Date: 2015-11-11
AISIN AI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, with the increase in the total mileage due to long-term use, various parts in the transmission wear, cracks occur on the sliding surface, and vibration occurs, resulting in increased friction

Method used

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  • Vehicle dual clutch transmission
  • Vehicle dual clutch transmission
  • Vehicle dual clutch transmission

Examples

Experimental program
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Effect test

Embodiment Construction

[0033] refer to Figure 1~Figure 9 Embodiments for carrying out the present invention will be described. figure 1 It is a configuration diagram showing a vehicle dual-clutch transmission 1 according to an embodiment of the present invention. The vehicle dual-clutch transmission 1 is a device that selects five forward gears and one reverse gear, and can transmit the output torque of the engine 91 to the differential 93 in an engaged and disengaged manner. The vehicle dual-clutch transmission 1 is composed of a first clutch 21 and a second clutch 22, a first input shaft 31, a second input shaft 32, an output shaft 4, a first speed change mechanism 5, a second speed change mechanism 6, a control unit 7, etc. constitute.

[0034] The first clutch 21 and the second clutch 22 are parts that independently switch between an engaged state that is rotationally coupled to an output shaft 92 of an engine 91 serving as a power source, and a disengaged state that is disconnected from the...

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PUM

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Abstract

The dual clutch transmission (1) has two transmission mechanisms (5,6) that are arranged between drive shafts (31,32) and output shafts (4) respectively. A control unit controls the transmission mechanisms. The control unit has a gear pre-selection unit that selects specific gear based on vehicle state. A gear pre-selection adjustment unit calculates gear selection process time by considering the influence of temperature of dual clutch transmission. A gear preselection implementation unit selects a delay path based on the gear selection process time.

Description

technical field [0001] The present invention relates to a dual-clutch transmission for a vehicle that is mounted on a vehicle and includes two clutches that can independently switch between an engaged state and a disengaged state. More specifically, it relates to controlling execution timing of a pre-shift operation. Background technique [0002] As a type of vehicle transmission, there is a dual-clutch transmission, which includes: two clutches; two input shafts connected to and disconnected from the engine through each clutch; Speed ​​change gear set. The dual-clutch transmission has the advantage that a changeover operation with two clutches enables rapid shifting operations without interruption of the transmitted torque. As each clutch, for example, a friction clutch driven by a clutch actuator (clutch actuator) can be used. Each speed change gear set usually constitutes about 4 to 7 shift stages, and is selectively meshed and combined by using a known synchronizer. Mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H3/08F16H61/688F16H61/08
CPCF16H61/0213F16H61/08F16H61/688F16H2306/18F16H2306/20
Inventor 井上大贵
Owner AISIN AI CO LTD
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