Electric brake system and controlling method thereof
AssigneeHl Mando Corporation
InventorYoungeun Cho
Life of this patent
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Abstract
Disclosed herein is an electric brake system including: a hydraulic feeder configured to move a piston forward or backward according to a pedal effort from a brake pedal to discharge oil; a motor position sensor configured to measure a position of the piston; and a controller configured to control, when an Anti-lock Brake System (ABS) control starts, a change in direction of the piston based on predicted displacement information of the piston while the ABS control is performed such that the piston is at a target position at target vehicle speed.
Claims12
An electric brake system comprising:
- a hydraulic feeder configured to move a piston forward or backward according to a pedal effort from a brake pedal to discharge oil;
- a motor position sensor configured to measure a position of the piston;
- and
- a controller configured to, when an Anti-lock Brake System (ABS) control starts, control a change in direction of the piston such that the piston positions at a target position at target vehicle speed based on predicted displacement information of the piston, determined based on at least one of the measured position of the piston or a speed of a vehicle, while the ABS control is performed, wherein the controller controls the piston to change a movement direction last before a predetermined time set to be prior to termination of the ABS control.
A method of controlling an electric brake system, comprising:
- sensing a speed of a vehicle;
- measuring a position of a piston;
- determining predicted displacement information of the piston while an Anti-lock Brake System (ABS) control is performed;
- determining target vehicle speed and a target position of the piston;
- and
- controlling a change in direction of the piston such that the piston positions at the target position at the target vehicle speed based on the predicted displacement information, determined based on at least one of the measured position of the piston or the sensed speed of the vehicle, wherein the controlling of the piston comprises controlling the piston to change a movement direction last before a predetermined time prior to termination of the ABS control.
Dependencies are inferred from the claim text.