Brake system and method for controlling the same
AssigneeMando Corporation
InventorSam Hyun JUNG
Life of this patent
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Abstract
A brake system includes a piston configured to generate hydraulic pressure of brake fluid stored in a brake system, and an electronic control unit (ECU) configured to calculate hydraulic pressure to be generated in response to an amount of movement of the piston. The ECU estimates a current temperature of the brake fluid, calculates a maximum estimated hydraulic pressure of the piston based on the estimated current temperature, and determines a maximum hydraulic-pressure reference value for backward movement control of the piston based on the maximum estimated hydraulic pressure.
Claims11
A brake system comprising:
- a piston configured to generate a hydraulic pressure of brake fluid stored in a brake system;
- and
- an electronic control unit (ECU) configured to calculate a hydraulic pressure to be generated in response to an amount of movement of the piston,
- wherein the electronic control unit (ECU) estimates a current temperature of the brake fluid, calculates a maximum estimated hydraulic pressure of the piston based on the estimated current temperature, and determines a maximum hydraulic-pressure reference value for backward movement control of the piston based on the maximum estimated hydraulic pressure.
A method for controlling a brake system in which a first function for calculating a hydraulic pressure to be generated in response to volume of brake fluid to be consumed in the brake system is pre-stored, the method comprising:
- estimating a temperature of the brake fluid;
- measuring a hydraulic pressure of the brake fluid;
- calculating a maximum estimated hydraulic pressure of a piston based on the estimated temperature;
- determining a maximum hydraulic-pressure reference value for controlling backward movement of the piston based on the maximum estimated hydraulic-pressure;
- and
- when the measured hydraulic pressure reaches the maximum hydraulic-pressure reference value in a situation in which sudden deceleration control is required, moving the piston backward.
Dependencies are inferred from the claim text.