Automatic shifting device and method for speed change of vehicles

An automatic gear shifting and vehicle technology, applied in the field of vehicle parts, can solve the problems of high machining accuracy, unfavorable mass production, and inability to achieve gear skipping, and achieves high mechanical efficiency, accurate gear selection and shifting actions, and easy program control. Effect

Active Publication Date: 2012-03-21
SUZHOU LVKON TRANSMISSION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main defect of this mechanism is that the cam profile is a key technical link, which requires high machining accuracy, which is not conducive to mass production; the strict cam profile requires high-precision sensors for position detection and high control accuracy ;The gears must be shifted up and down sequentially according to the cam contour, and gear jumping cannot be realized.

Method used

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  • Automatic shifting device and method for speed change of vehicles
  • Automatic shifting device and method for speed change of vehicles
  • Automatic shifting device and method for speed change of vehicles

Examples

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Embodiment

[0025] Example: such as Figure 1-2 As shown, it is a specific embodiment of the automatic shifting device for vehicle speed change of the present invention, which includes a gear selection motor 1, a gear selection reducer 2 that is connected to the gear selection motor 1 and decelerates, a main shaft 3, and a main shaft 3 The dial 4 on the top, the shift motor 5, the lead screw 6 connected to the output of the shift motor 5, the nut 7 set on the lead screw 6, the shift fork 8 set on the main shaft 3 and matched with the nut 7 , the gear selection position sensor 9 arranged on the gear selection reducer 2, the gear shift position sensor 10 connected to the main shaft 3, the housing 11 located between the gear selection reducer 2 and the gear shift motor 5 and covering the main shaft 3 , and an electronic control unit (not marked) that is all electrically connected with the gear selection position sensor 9, the gear shift position sensor 10, the gear selection motor 1, and the...

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PUM

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Abstract

The invention relates to an automatic shifting device and a method for speed change of vehicles. The device comprises a shift selection motor, a shift selection reducer which is connected with the shift selection motor and is used for speed reduction, a spindle, a dial head sleeved on the spindle, a shift motor, a lead screw connected with the output of the shift motor, a nut sleeved on the lead screw, a shifting fork which is sleeved on the spindle and is in transmission fit with the nut, a shift selection position sensor arranged on the shift selection reducer, a shift position sensor connected with the spindle, and a shell which is positioned between the shift selection reducer and the shift motor and covers the spindle. The invention has the advantages that: the device has a simple structure, is light and has high mechanical efficiency; the device can realize trip stop, is convenient to install, and is small in mechanical occupied space; the device can realize the stable transmission of power, is accurate in position, can realize program control easily, and is safe and reliable, and shift selection and changing actions are accurate; and the device is low in cost and is easy to implement.

Description

technical field [0001] The invention belongs to vehicle components, and in particular relates to an automatic shifting device for vehicle speed change and a method thereof for the arrangement and installation of a control mechanism of a transmission gear transmission device on a vehicle. Background technique [0002] Most of the automatic transmission systems currently used in automobiles are hydraulic automatic transmissions (AT) composed of hydraulic torque converters and planetary gear boxes. Due to high cost and high fuel consumption, they are often only used in high-end cars and are difficult to achieve. universal. In the 1980s, an automatic mechanical transmission (AMT) was realized by installing a set of actuators and electronic control units on the basis of manual transmissions. The control of the transmissions has always used hydraulic actuators. It is composed of gear selection and shift cylinders, oil pumps and solenoid valves, and the gear selection and shift ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H63/32F16H59/02F16H61/04
Inventor 李磊吕小科刘振发
Owner SUZHOU LVKON TRANSMISSION TECH CO LTD
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