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Anti-reverse-rotation system and method for automatic transmission apparatus

An automatic transmission and anti-reversal technology, which is applied in the direction of transmission control, electric/magnetic device transmission of sensing components, measurement devices, etc., can solve problems such as fuel consumption, collision, and increased vibration

Inactive Publication Date: 2005-04-27
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when a vehicle equipped with such a magnetic sensing mechanism is started after stopping on an upward slope, the vehicle may back up a bit before moving forward, which can startle the driver and may result in a small collision
This is because the ECU cannot distinguish the rotation direction of the output shaft from the signal with a monotonic waveform from the magnetic sensor
[0006] In addition, because the rpm (revolutions per minute) of the engine must be high to prevent the vehicle from backing up when starting on a slope, idling causes fuel consumption and chattering noise
Also, the increased rpm results in increased acceleration vibration when going downhill

Method used

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  • Anti-reverse-rotation system and method for automatic transmission apparatus
  • Anti-reverse-rotation system and method for automatic transmission apparatus
  • Anti-reverse-rotation system and method for automatic transmission apparatus

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Embodiment Construction

[0018] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0019] image 3 It is a schematic diagram of the magnetic sensing mechanism of the anti-reverse system according to the preferred embodiment of the present invention.

[0020] The magnetic sensing mechanism 20 of the anti-reverse system includes an output gear 24 mounted on an output shaft 22 of an automatic transmission (not shown) and is used to detect the rotational speed and Orientation of the magnetic sensor 30.

[0021] Such as Figure 4 As shown, the output gear 24 is provided with a plurality of magnetic teeth 26 having a slot 28 unevenly formed on the end face of each tooth so that the surface of the tooth 26 is divided into a wide surface 34 and a narrow surface 34. Surface 36.

[0022] The magnetic sensor 30 is located directly above the output gear 24 such that the magnetic sensor 30 faces the end face of each tooth 26 .

[0023] about ...

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Abstract

An anti-rollback system for an automatic transmission includes an output gear connected to an output shaft of the automatic transmission, and a magnetic sensor for detecting output rpm of the output gear. The magnetic sensor is electrically connected to an. ECU (electronic control unit) and the output gear has a plurality of teeth, each tooth having a slot formed on its upper surface thereof.

Description

technical field [0001] The present invention relates to an automatic transmission of an automobile, and more particularly to an anti-reverse system and a method capable of preventing the vehicle from rolling back when starting on a slope, using an improved magnetic sensor mechanism to detect the direction of rotation of the output shaft, thereby Optimal control of automatic transmissions. Background technique [0002] figure 1 and figure 2 Respectively represent a conventional magnetic sensor mechanism and a curve representing the electromagnetic wave generated by the magnetic sensor. [0003] A conventional anti-reverse system includes a magnetic sensor mechanism comprising an output gear 4 disposed on an output shaft of an automatic transmission (not shown) and a sensor for detecting the output of a sensing magnetic tooth 6 formed on the output gear 4. The magnetic sensor 8 of the torque, the signal detected by the magnetic sensor 8 is a parameter for the ECU (Electron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/488F16H59/40F16H61/00F16H61/20F16H63/50G01D5/245G01P3/487G01P13/04
CPCF16H2059/443B60W30/18118G01P3/487F16H59/40F16H61/20G01P13/045F16H2061/205G01D5/2457F16H61/00
Inventor 许景善
Owner HYUNDAI MOTOR CO LTD