Electric brake system and method of controlling the same
AssigneeHl Mando Corporation
InventorSukku Kim
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an electric brake system including a brake including a cylinder and a piston which is provided in the cylinder to move forward or backward and is moved by hydraulic pressure so that a brake pad presses a brake disc, an electric stability control (ESC) actuator configured to generate and supply hydraulic pressure to the cylinder to brake a wheel of a vehicle, an electric parking brake (EPB) actuator configured to move the piston by a motor, and a controller configured to control the EPB actuator and the ESC actuator, wherein the controller estimates a flux in the cylinder and estimates pressure in the cylinder based on whether an EPB is applied through driving of the EPB actuator and the estimated flux in the cylinder.
Claims10
An electric brake system comprising:
- a brake including a cylinder and a piston which is provided in the cylinder to move forward or backward and is moved by hydraulic pressure so that a brake pad presses a brake disc;
- an electric stability control (ESC) actuator configured to generate and supply hydraulic pressure to the cylinder to brake a wheel of a vehicle;
- an electric parking brake (EPB) actuator configured to move the piston by a motor;
- and
- a controller configured to control the EPB actuator and the ESC actuator,
- wherein the controller is configured to estimate a flux in the cylinder based on driving information of the ESC actuator and estimate pressure in the cylinder based on whether an EPB is applied through driving of the EPB actuator and the estimated flux in the cylinder.
A method of controlling an electric brake system including a piston moved by hydraulic pressure so that a brake pad presses a brake disc, a cylinder in which the piston is provided to move forward or backward, an electric stability control (ESC) actuator configured to generate and supply hydraulic pressure to the cylinder, and an electric parking brake (EPB) actuator configured to move the piston by a motor so that the brake pad presses the brake disc, the method comprising:
- estimating a flux in the cylinder based on driving information of the ESC actuator;
- and
- estimating pressure in the cylinder based on whether an EPB is applied through driving of the EPB actuator and the estimated flux in the cylinder.
Dependencies are inferred from the claim text.