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Apparatus for controlling automatic transmission and method of controlling automatic transmission

A control device, transmission control technology, applied in the direction of transmission control, components with teeth, belts/chains/gears, etc., can solve the problems of not considering the dynamic characteristics of automatic transmissions, generating shocks, etc., to improve the feeling of shifting. Effect

Active Publication Date: 2017-06-20
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] If the control is centralized in the transmission control unit (TCU) without taking into account the differences in the dynamic characteristics of the individual components of the automatic transmission, shocks can occur during shifting operations

Method used

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  • Apparatus for controlling automatic transmission and method of controlling automatic transmission
  • Apparatus for controlling automatic transmission and method of controlling automatic transmission
  • Apparatus for controlling automatic transmission and method of controlling automatic transmission

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Embodiment Construction

[0031] The invention will be described in more detail hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. As those skilled in the art could realize, these embodiments may be changed in various different ways, all without departing from the spirit or scope of the present invention.

[0032] In order to clarify the present invention, parts irrelevant to the present invention will be omitted, and the same reference numerals will be used to designate the same parts or equivalents throughout the specification.

[0033] The size and thickness of each element can be shown arbitrarily in the drawings, and the present invention is not necessarily limited thereto. In the drawings, the thickness of layers, films, panels, regions, etc., may be exaggerated for clarity.

[0034] Now, a control device of an automatic transmission according to an exemplary embodiment of the present invention will be described with reference to t...

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Abstract

A control apparatus of an automatic transmission includes an electric hydraulic pump including a motor and a pump, an actuator for engaging or releasing a friction element by controlling a hydraulic pressure discharged from the pump, and a transmission control unit (TCU) for correcting a control signal to control the actuator depending on a dynamic characteristic coefficient of the friction element and the actuator during shifting when outputting the control signal to the actuator.

Description

technical field [0001] The present invention relates to a control device of an automatic transmission and a method for controlling the automatic transmission, and more particularly to a control device of the automatic transmission reflecting hardware deviations of individual components of the automatic transmission. Background technique [0002] The automatic transmission controls hydraulic pressure by operating at least one actuator to shift to a target gear speed or ratio according to driving conditions such as vehicle speed and throttle opening. [0003] When shifting to a target gear speed, an automatic transmission may have an off-going or first friction element that changes from an engaged state to a released state, and an on-going (on) that changes from a released state to an engaged state. -coming) or the second friction element. Either releasing or activating to disengage the friction elements and engaging or activating to engage the friction elements may be achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/28F16H61/30F16H59/24F16H59/44F16H59/36F16H59/68
CPCF16H59/24F16H59/44F16H61/2807F16H61/30F16H2059/6861F16H2059/366F16H61/0204F16H61/0213F16H2061/0244F16H2306/14B60W10/10B60W30/19B60W30/186
Inventor 魏泰焕李昌郁任度境梁钟太
Owner HYUNDAI MOTOR CO LTD
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