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Method and system for calibrating gear position of electronic gear shifter

An electronic shifter and gear technology, which is applied to components with teeth, transmission control, belt/chain/gear, etc., can solve the problem of large impact noise between the shift lever and the base, and the electronic shifter cannot realize self-control Diagnosis and other problems to achieve the effect of improving accuracy, sensitivity, and reducing errors

Active Publication Date: 2020-08-21
NINGBO GAOFA AUTOMOTIVE CONTROL SYSTEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electronic shifter cannot realize the self-diagnosis function, and during the shifting process, the impact noise between the shift lever and the base is large

Method used

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  • Method and system for calibrating gear position of electronic gear shifter
  • Method and system for calibrating gear position of electronic gear shifter
  • Method and system for calibrating gear position of electronic gear shifter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment provides an electronic shifter, such as Figure 1 to Figure 2 As shown, the electronic shifter includes: a base, a shifting assembly and a main board;

[0058] The base includes an internal operating cavity, a boss on the upper part, and a bottom cover on the lower part;

[0059] Base 1, base 1 is provided with an operating cavity 11, the upper part of the base 1 protrudes to form a boss 12, and the boss 12 is provided with an opening 121 and an installation cavity 122, and the opening 121 and the installation cavity 122 are both connected to the operation cavity 11 ; A bottom cover 13 is provided below the base 1 .

[0060] The shift assembly includes a shift lever and a rocker arm, the shift lever is hinged on the boss through a pin, and a bush for shock absorption and noise reduction is arranged between the shift lever and the pin; One end of the shift lever passes through the boss and extends into the operating cavity; the rocker arm is arranged on...

Embodiment 2

[0069] This embodiment provides a method for calibrating the gear position of an electronic shifter, such as Figure 3 to Figure 4 As shown, the method includes the steps of:

[0070] Obtain the first release position where the rocker arm of the gear shift assembly reaches the limit position upwards;

[0071] Obtain the second release position where the rocker arm of the gear shift assembly reaches the limit position upwards;

[0072] By means of a preset mean value algorithm, the mean position after adding the first release position and the second release position is obtained; and the obtained mean value is set as the position angle of the intermediate gear.

[0073] Since the electronic shifter mechanism is a monostable state, the release position of the shift lever is the preset middle position, which is set as point Z in this embodiment. Since there is a certain gap at point Z in the actual structure, in order to reduce the error , so the calibration method of point Z fr...

Embodiment 3

[0098] This embodiment provides a system for determining the gear position of an electronic shifter, such as Figure 5 As shown, the system includes:

[0099] Two-way Hall sensor, used to obtain the rotation angle of the rocker arm of the current gear shift assembly;

[0100] The angle comparison module is used to compare the acquired rotation angle of the rocker arm of the current shift assembly with the preset gear position angle, and judge whether the rotation angle of the rocker arm of the current shift assembly is an effective rotation angle;

[0101] The angle confirmation module is used to start timing if the rotation angle of the rocker arm of the current shift assembly is an effective stroke angle, and when the time is the preset effective time, judge whether the rotation angle of the rocker arm of the current shift assembly changes; if it changes, Then the gear position signal is not sent; if it does not change, the gear position is sent as the gear position signal ...

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Abstract

The invention discloses an electronic gear shifter. The electronic gear shifter comprises a base, a gear shifting component and a main board; the base comprises an inner operating cavity arranged inside; a boss is arranged at the upper part; a bottom cover is arranged at the lower part; the gear shifting component comprises a gear shifting rod and a rocker arm; the gear shifting rod is hinged to the boss through a hinge pin; a bushing for shock absorption and noise reduction is arranged between the gear shifting rod and the hinge pin; one end of the gear shifting rod penetrates through the boss and extends into the inner operating cavity; the rocker arm is arranged on the bottom cover, is driven by the gear shifting rod and is provided with a magnet; the magnet and the rocker arm are integrally formed; the main board comprises a gear position acquisition circuit; and an angular Hall sensor is arranged on the gear position acquisition circuit and is used for acquiring the rotation angleof the rocker arm by sensing the magnet on the rocker arm so as to sense the gear of the gear shifting rod. The electronic gear shifter has the advantages that the gear shifting assembly has the self-diagnosis ability, and the gear position is relatively accurately acquired.

Description

technical field [0001] The invention relates to the technical field of shifters, in particular to a method and system for calibrating gear positions of an electronic shifter. Background technique [0002] With the development of technology, the transmission relationship between the car's shifter assembly and the gearbox has gradually changed from mechanical transmission to electric wire control; the mechanical transmission controls the gearbox through the linkage of the shifter cable. The actual positions of the gearboxes correspond to each other. The electronic shifter transmits the shifting electrical signal from the shifter to the gearbox. The electronic shifter usually arranges switch sensors at each gear position of the joystick to sense the gear change and send out an electrical signal to control the gearbox. The control method is simpler, but the switch sensor cannot self-diagnose. Once the switch sensor fails, the gear cannot be changed, and only the tow truck can b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H59/02F16H61/12F16H63/42
Inventor 周刚杨忠建
Owner NINGBO GAOFA AUTOMOTIVE CONTROL SYSTEM CO LTD
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