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Automatic parking method, automatic transmission and vehicle

An automatic transmission and automatic parking technology, which is applied to vehicle components, transmissions, gear transmissions, etc., can solve the problems of lag in response when the vehicle starts, high control accuracy requirements, and inability to prevent the vehicle from rolling back, achieving additional costs. The effect of low, obvious benefit, high-performance automatic parking function

Inactive Publication Date: 2014-08-27
SAIC GENERAL MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to complete the slope automatic parking function, the current application technology must be based on the ESP system, and the cost is relatively high
Moreover, in the technology that uses wheel braking as the means of realization, there must be a control dilemma: the braking force is too small to prevent the vehicle from slipping backwards; the braking force is too large, and the response of the vehicle to start is lagging when driving again.
Therefore, this type of technology has higher requirements on the control accuracy of the system.

Method used

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  • Automatic parking method, automatic transmission and vehicle
  • Automatic parking method, automatic transmission and vehicle
  • Automatic parking method, automatic transmission and vehicle

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Embodiment Construction

[0030] In order to help those skilled in the art to accurately understand the claimed subject matter of the present invention, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] figure 1 It is a schematic diagram of the lever method of the automatic transmission planetary gear train involved in the present invention. The structure is composed of three rows of planetary rows, and through different combination control of five clutches, different transmission ratio requirements are realized. figure 2 It shows the shifting situation of the automatic transmission involved in the present invention through different combinations of clutches. The present invention can be used in any kind of parking situation, especially suitable for the parking situation when the best slope is uphill.

[0032] combine figure 1 , the planetary gear mechanism of the automatic transmission includes a f...

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Abstract

The invention discloses an automatic parking method, an automatic transmission and a vehicle. According to the automatic parking method, the automatic transmission of the vehicle comprises an output shaft, the vehicle moves forwards when the output shaft rotates in the forward direction, and the vehicle moves backwards when the output shaft rotates in the reverse direction. The method includes that the working state of the vehicle is monitored, when the automatic parking condition is achieved, the output shaft is prevented from rotating in the reverse direction, and the automatic parking condition includes that (1) the vehicle speed is zero and (2) a brake pedal is pushed down. By means of the automatic parking method, the automatic transmission and the vehicle, the automatic parking function can be effectively achieved, additional costs are low, and the feasibility is high.

Description

technical field [0001] The invention belongs to the technical field of AT (automatic transmission) vehicles, and in particular relates to an automatic parking method for an automatic transmission vehicle. [0002] The invention also relates to an automatic transmission and a vehicle with the automatic transmission. Background technique [0003] The development of automobile technology has a history of one hundred years. After entering the 21st century, with the development of various new electronic technologies and interdisciplinary subjects, various new technologies applied in automobiles are emerging in an endless stream. The introduction of various new auxiliary functions makes car driving more comfortable, more environmentally friendly and safer. The slope automatic parking technology is a new technology adopted by some automobile manufacturers in recent years. Its main function is to perform auxiliary braking on the vehicle when parking on an uphill, so as to prevent t...

Claims

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Application Information

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IPC IPC(8): B60W30/06F16H3/66
CPCB60W30/06B60W2520/04B60W2540/12F16H3/66
Inventor 田华
Owner SAIC GENERAL MOTORS
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