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Method and apparatus for controlling an automatically shifting transmission

A technology of automatic shifting and transmission, applied in mechanical equipment, transmission control, components with teeth, etc., can solve problems such as long shifting time

Active Publication Date: 2017-01-04
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This continuous multiple downshifts require a relatively long shift time

Method used

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  • Method and apparatus for controlling an automatically shifting transmission

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The drawing shows a device for controlling an automatic transmission 4 of a motor vehicle, which has a first selection device 1 in the form of a selection lever not shown, which can be positioned in at least one channel (first channel) Sport to determine the adjustable driving positions P, R, N and D in automatic mode A. Furthermore, a second selection device 2 in the form of an upshift key (+ key) and a downshift keypad (− key) is shown, by means of which in the manual mode M it is possible to manually shift the The gear of the transmission is upshifted or downshifted. In the second channel, likewise in manual mode M, the selection device 1 can be actuated into the downshift position (−) and into the upshift position (+). The upshift and downshift keys can be arranged on the steering wheel L in the form of shift paddles, for example.

[0020] Furthermore, there is an electronic controller 3 which receives various input signals, including the accelerator pedal FP (wit...

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PUM

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Abstract

The present invention relates to methods and apparatus for controlling an automatically shifting transmission. According to the invention, in a motor vehicle, by means of at least one selection device and by means of an electronic controller, after actuating said selection device into a downshift position requiring a manual downshift and switching said selection device for a predetermined period of time While remaining in the downshift position, the shifting characteristic curve for the kick-down shift is activated for a gear selection in the sense of a kick-down simulation; The gears of the transmission can be upshifted or downshifted, and the electronic controller predetermines a gear selection for actuating actuators of the transmission as a function of signals from a selection device, as a function of a shifting characteristic curve and as a function of other input signals.

Description

technical field [0001] The invention relates to a method for controlling an automatically shifted transmission of a motor vehicle by means of at least one selector device and by means of an electronic controller and a device for carrying out the method. Background technique [0002] Such a device is known by the applicant for example from his own patent application DE 10 2006 025 625 A1. This known device has a selection device in the form of a selector lever, with which the drive stages P, R, N, D, which can be adjusted in automatic mode, can be determined. By means of the second selection device in the form of a steering wheel with two switches, the gears of the transmission can be manually upshifted or downshifted step by step in manual mode, in particular. The known device has an electronic transmission controller, which is common in automatic transmissions or automated manual transmissions. [0003] In a known method, at least the second selection device is actuated i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/08F16H61/02
Inventor M·赖希勒
Owner BAYERISCHE MOTOREN WERKE AG
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