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Method for carrying out a shifting operation in a sequential manual transmission

A transmission, sequential technology, applied in the direction of elements with teeth, belt/chain/gear, mechanical equipment, etc., can solve the problems of expensive, large system, etc., to achieve the effect of improving driving and shifting comfort

Active Publication Date: 2021-08-17
BAYERISCHE MOTOREN WERKE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the period of time during which there is an interruption of traction is increased, which is disadvantageous in two-wheeled vehicle applications, since the driver cannot be supported on the driver's seat as in a car, but the immediate reaction of the vehicle Desired for a comfortable driving feel
[0004] For shifting without interruption of traction, systems with dual clutch transmissions are known, but are large and expensive

Method used

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  • Method for carrying out a shifting operation in a sequential manual transmission
  • Method for carrying out a shifting operation in a sequential manual transmission

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] figure 1 The sequence of the method for carrying out the shifting process in the case of an upshift from gear X into gear X+1 in a sequential transmission, such as a shift dog transmission, is clearly shown. The shifting process can be carried out automatically, partially automatically or manually. The shifting process takes place in particular without actuating the clutch.

[0027] Sequential transmissions are sufficiently known to those skilled in the art that a detailed description is therefore omitted.

[0028] exist figure 1 , the process of the method is divided into time segments. The curves of different characteristic variables are shown schematically here.

[0029] Normal driving operation takes place from time 0 to time 1, that is to say, while gear X is engaged, in particular without shifting to a higher or lower gear, the driver makes the vehicle accelerate.

[0030] Corresponding to the acceleration adjusted by the driver via the throttle control devi...

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Abstract

The invention relates to a method for carrying out a shifting operation in a sequential manual transmission, in particular a shifting claw transmission. During the shifting operation, a maximum clutch torque (24) that can be transmitted by a clutch arranged between an engine and a transmission input shaft is automatically reduced without completely disengaging the clutch.

Description

technical field [0001] The invention relates to a method for carrying out a shifting process in a sequential transmission. Background technique [0002] Sequential shift transmissions are mainly used in motorcycles. During a quick gearshift without clutch actuation, there is a short, sudden vehicle acceleration due to incomplete speed synchronization. Such behavior results in poor driving or shifting comfort. [0003] In order to minimize sudden vehicle acceleration, the rotational speed can be achieved by interrupting the force lock, that is to say by opening the clutch between the engine and the transmission, or by stopping in a targeted manner without engaging a gear Synchronize. But this will prolong the shift time. As a result, the period of time during which there is an interruption of traction is increased, which is disadvantageous in two-wheeled vehicle applications, since the driver cannot be supported on the driver's seat as in a car, but the immediate reaction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H61/04F16H63/46F16H63/50
CPCF16H61/0403F16H63/46F16H63/502F16H2063/508F16H2306/54
Inventor P·辛德勒
Owner BAYERISCHE MOTOREN WERKE AG
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