Title:
METHOD FOR CONTROLLING NEUTRAL POSITION OF AUTOMATIC TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2018/019207
Kind Code:
A1
Abstract:
A method for controlling the neutral position of an automatic transmission. The method comprises the following steps: when a neutral position control function of an automatic transmission is in an activated state, a control unit of the automatic transmission collects information about the pressure of a primary braking cylinder, information about the state of a braking pedal and information indicating whether an automatic parking function is in an activated state; and when the pressure of the primary braking cylinder is less than a pressure threshold P3 of the neutral position control function and the automatic parking function is in an unactivated state, or the pedal is in an unpressed state and the automatic parking function is in the unactivated state, the control unit of the automatic transmission controls the neutral position control function to exit from an activated state.
Inventors:
LIU XINBO (CN)
LAN SHIHUA (CN)
CHEN YOUHUI (CN)
LAN SHIHUA (CN)
CHEN YOUHUI (CN)
Application Number:
PCT/CN2017/094131
Publication Date:
February 01, 2018
Filing Date:
July 24, 2017
Export Citation:
Assignee:
GUANGZHOU AUTOMOBILE GROUP CO (CN)
International Classes:
F16H59/54
Domestic Patent References:
| WO2015157668A1 | 2015-10-15 |
Foreign References:
| CN106195259A | 2016-12-07 | |||
| US20050221955A1 | 2005-10-06 | |||
| CN104455383A | 2015-03-25 | |||
| CN102563038A | 2012-07-11 | |||
| JP4983249B2 | 2012-07-25 | |||
| JPH11193866A | 1999-07-21 |
Attorney, Agent or Firm:
PSHIP FIRM,LLC (CN)
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