Position learning system for electric shift-by-wire system
AssigneeHyundai Autron Co., Ltd.
InventorHyoung Sang CHO
Life of this patent
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Abstract
The present invention relates to a position learning system for an electric shift-by-wire system, which senses changes in the load of a motor according to operations of a four-stage detent plate and a detent spring to learn positions of shift stages of the electric shift-by-wire system, the position learning system including: a sensor for sensing the current generated from the motor; and a controller for receiving current data until a shift stage P is switched to a shift stage D or the shift stage D is switched to the shift stage P from the sensor, learning positions of shift stages R and N through the received current data, and performing offset operations on the basis of the learned positions of the shift stages R and N to learn positions of the shift stages P and D.
Claims12
A position learning system for an electric shift-by-wire system, which senses changes in the load of a motor according to operations of a four-stage detent plate and a detent spring to learn positions of shift stages of the electric shift-by-wire system, the position learning system comprising:
- a sensor for sensing the current generated from the motor;
- and
- a controller for receiving current data until a shift stage P (Parking) is switched to a shift stage D (Drive) or the shift stage D is switched to the shift stage P from the sensor, learning positions of shift stages R (Reverse) and N (Neutral) through the received current data, and performing offset operations on the basis of the learned positions of the shift stages R and N to learn positions of the shift stages P and D.
A position learning system for an electric shift-by-wire system, which senses changes in the load of a motor according to operations of a two-stage detent plate and a detent spring to learn positions of shift stages of the electric shift-by-wire system, the position learning system comprising:
- a sensor for sensing the current generated from the motor;
- and
- a controller for receiving current data until a shift stage P is switched to a shift stage which is not the shift stage P or the shift stage which is not the shift stage P is switched to the shift stage P from the sensor, learning the position of a hill of the detent plate through the received current data, and performing offset operations on the basis of the learned position of the hill of the detent plate to learn positions of the shift stages P and the shift stage which is not the shift stage P.
Dependencies are inferred from the claim text.