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Vehicle shift control device and method

A shift control and vehicle controller technology, which is applied in the direction of power plant, vehicle components, transmission control, etc., can solve the problems affecting the driving performance of hybrid vehicles, changes in shift quality, long shift time, etc., to shorten the shift Gear timing, suppression of power interruption, and effect of improving shift quality

Active Publication Date: 2020-02-14
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method of manually synchronizing the speed of the input shaft with the speed of the output shaft using slip has problems: the shift time is long and the shift quality is changed in response to driving conditions (eg, gradient of the road, vehicle load, etc.)
[0006] In addition, hybrid vehicles do not use a torque converter in order to improve fuel efficiency, and thus when the shift quality is not very good, the drivability of the hybrid vehicle can be adversely affected

Method used

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  • Vehicle shift control device and method
  • Vehicle shift control device and method
  • Vehicle shift control device and method

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Embodiment Construction

[0042] The following description is merely exemplary in nature, and is not intended to limit the disclosure, application, or uses. It should be understood that throughout the drawings, corresponding reference numerals indicate like or corresponding parts and features.

[0043] Also, in describing the following exemplary forms of the present disclosure, well-known functions or configurations will not be described in detail since they may unnecessarily obscure the understanding of the present disclosure. In addition, the following terms are defined in consideration of functions in the present disclosure, and may be interpreted in different ways by intentions of users and operators, practices, and the like. Thus, its definition should be interpreted based on the contents of the entire specification.

[0044] In addition, in order to effectively describe the core technical features of the present disclosure, terms may be appropriately changed, integrated, or separated for those s...

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Abstract

The invention provides a vehicle shift control device and a method thereof. Specifically, the shift control device includes: a transmission including a first clutch and a second clutch; a torque source for generating power for driving a vehicle; a data detector for detecting a state of the vehicle data; and a vehicle controller for connecting the current gear synchronizer to the next gear drive gear, releasing the first clutch connected to the current gear drive gear if the vehicle state data satisfies the shift condition , performing speed control of the torque source while maintaining the second clutch connected to the driving gear of the next gear in a slipping state, and if the vehicle state data satisfies the speed control completion condition, releasing the second clutch and connecting the first clutch, to complete the shift to the target gear.

Description

technical field [0001] The present disclosure relates to a shift control device and method for a vehicle. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] An automatic transmission changes a gear ratio according to a driving state of a vehicle to automatically perform a shift to a target gear. [0004] When performing a shift to a target shift speed, an off-coming friction element released in an operating state and an on-coming friction element changed from a released state to an operating state exist in the automatic transmission, and Release and engagement of the friction elements to be disengaged and the friction elements to be engaged are performed by controlling the oil pressure supplied to each friction element. In addition, by operating the control duty to control the helical conduit valve, the control of the oil pressure supplied to the dis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/04
CPCF16H61/0403B60K6/448B60K2006/268Y10S903/93Y02T10/62F16H61/465F16H2306/48F16H2059/462F16H2061/0407B60W20/15B60W10/02B60W10/06B60W10/08B60W10/113B60W30/19B60W2510/1005B60W2510/104B60W2510/1095B60W2710/021B60W2710/025B60W2710/0644B60W2710/081B60W2710/1005B60W2710/1011F16H61/68
Inventor 方载盛
Owner HYUNDAI MOTOR CO LTD
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