Method for non-microslip based dual clutch transmission power on up shift
US-9365206-B2 · Jun 14, 2016 · US
Method and apparatus for controlling dual clutch transmission
US2016167665A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016167665-A1 |
| Application number | US-201514961310-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 7, 2015 |
| Priority date | Dec 15, 2014 |
| Publication date | Jun 16, 2016 |
| Grant date | — |
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- Title
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Abstract
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The present invention relates to a method and apparatus for controlling a dual clutch transmission. The method includes receiving a gear shift start command; coupling a target gear to a second input shaft according to the gear shift start command; and releasing a first clutch torque applied to a first clutch associated with a first input shaft and increasing a second clutch torque applied to a second clutch associated with the second input shaft up to an engines torque, wherein the second clutch torque is determined by applying a target slip factor to a predetermined control position of the second clutch. According to the present invention, when a dual clutch transmission performs gear shift to a target gear, gear shift may m be quickly performed without obstruction by applying an optimum torque for controlling the clutch.
First claim
Opening claim text (preview).
What is claimed is: 1 . A method for controlling a dual clutch transmission, the method comprising: receiving a gear shift start command; coupling a target gear to a second input shaft according to the gear shift start command; and releasing a first clutch torque applied to a first clutch associated with a first input shaft and increasing a second clutch torque applied to a second clutch associated with the second input shaft up to an engines torque, wherein the second clutch torque is determined by applying a target slip factor to a predetermined control position of the second clutch. 2 . The method according to claim 1 , wherein the control position of the second clutch is determined by a T-S curve indicating torque applied to the second clutch according to a displacement of a motor for moving the second clutch and increase of the displacement of the motor. 3 . The method according to claim 1 , wherein the target slip factor is determined based on a target slip amount of the second clutch. 4 . The method according to claim 3 , wherein the target slip amount increases linearly from a time when the target gear is coupled to the second input shaft. 5 . The method according to claim 3 , wherein a maximum value of the target slip amount is equal to a difference in synchronization speed between the first input shaft and the second input shaft. 6 . The method according to claim 3 , wherein the target slip amount decreases linearly from a time when the second clutch torque applied to the second clutch increases up to the engine torque. 7 . An apparatus for controlling a deal clutch transmission, the apparatus comprising: a controller configured to receive a gear shift start command, couple a target gear to a second input shaft according to the gear shift start command, and release a first clutch torque applied to a first clutch associated with a first input shaft and increase a second clutch torque applied to a second clutch associated with the second input shaft up to an engines torque, wherein the second clutch torque is determined by applying a target slip factor to a predetermined control position of the second clutch. 8 . The apparatus according to claim 7 , wherein the control position of the second clutch is determined by a T-S curve indicating torque applied to the second clutch according to a displacement of a motor for moving the second clutch and increase of the displacement of the motor. 9 . The apparatus according to claim 7 , wherein the target slip factor is determined based on a target slip amount of the second clutch. 10 . The apparatus according to claim 9 , wherein the target slip amount increases linearly from a time when the target gear is coupled to the second input shaft. 11 . The apparatus according to claim 9 , wherein a maximum value of the target slip amount is equal to a difference in synchronization speed between the first input shaft and the second input shaft. 12 . The apparatus according to claim 9 , wherein the target slip amount decreases linearly from a time when the second clutch torque applied to the second clutch increases up to the engine torque.
Assignees
Inventors
Classifications
Clutch engagement state · CPC title
Clutch torque · CPC title
including control of driveline clutches · CPC title
Input shaft speed, e.g. turbine speed · CPC title
Engine torque · CPC title
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- What does patent US2016167665A1 cover?
- The present invention relates to a method and apparatus for controlling a dual clutch transmission. The method includes receiving a gear shift start command; coupling a target gear to a second input shaft according to the gear shift start command; and releasing a first clutch torque applied to a first clutch associated with a first input shaft and increasing a second clutch torque applied to a …
- Who is the assignee on this patent?
- Hyundai Autron Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B60W30/19. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Thu Jun 16 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).