AMT (automatic mechanical transmission) gear position calibration method for hybrid automobiles

A technology of hybrid power and calibration method, which is applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., to achieve the effect of reducing calibration time and selecting accurate and optimized gear positions
CN102913613BActive Publication Date: 2015-02-25CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGSHA CRRC INTELLIGENT CONTROL & NEW ENERGY TECH CO LTD
Publication Date
2015-02-25

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Abstract

The invention provides a six-gear AMT (automatic mechanical transmission) gear position calibration method for hybrid automobiles. The angular-transducer-based AMT gear position calibration method is mainly used for gear position calibration in delivery test of AMT automatic transmissions of parallel hybrid passenger vehicles and gear position correction in use. Optimal control of gear position query paths is realized by setting up a gear coordinate system based on gear selecting and shifting motor angles, and automatic calibration and correction of all gear positions can be realized on the basis of known limited target point positions and AMT interior structural characteristics. All gear positions are calibrated by the aid of least extreme coordinate point information, calibration time is shortened, accuracy and optimization in gear position selection are guaranteed, errors in reverse gear selection can be prevented, and accordingly running safety of automobiles is guaranteed.
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Description

technical field

[0001] The invention is mainly applied in the technical field of hybrid electric vehicles, and provides an AMT gear position calibration method for hybrid electric vehicles. Background technique

[0002] Due to its simple structure and mature technology, hybrid electric buses have been widely used in the field of new energy vehicles and belong to the country's emerging industries. However, when shifting gears in a hybrid electric bus, due to the driver's proficiency and driving skills, the engine of the vehicle often works in an unstable working state, which affects the fuel-saving efficiency of the vehicle. AMT automatic transmission can solve the above problems very well. By automatically adjusting the gear position of the vehicle, it can eliminate the differences in driving skills and proficiency of different drivers, reduce driver fatigue and reduce fuel consumption. The premise of gear shifting in AMT automatic transmission is the correct acquisition of...

Claims

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