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US 2026/0116366 A1Published application
Electric brake system and control method thereof
AssigneeHl Mando Corporation
InventorsYeonseong KIM, Kiwon KANG
Life of this patent
Estimating the term…
Abstract
An electric brake system includes a hydraulic pressure supply device configured to generate hydraulic pressure of a pressurized medium, a hydraulic control unit provided between the hydraulic pressure supply device and a plurality of wheel cylinders and configured to transmit the hydraulic pressure generated by the hydraulic pressure supply device to the plurality of wheel cylinders, and an auxiliary brake module configured to provide hydraulic pressure to a first wheel cylinder and a second wheel cylinder among the plurality of wheel cylinders.
Claims20
An electric brake system, comprising:
- a hydraulic pressure supply device configured to generate hydraulic pressure of a pressurized medium;
- a hydraulic control device provided between the hydraulic pressure supply device and a plurality of wheel cylinders, and configured to transmit the pressurized medium with the hydraulic pressure generated by the hydraulic pressure supply device to the plurality of wheel cylinders;
- and
- an auxiliary brake configured to provide the pressurized medium with the hydraulic pressure to a first wheel cylinder and a second wheel cylinder among the plurality of wheel cylinders,
- wherein the auxiliary brake includes:
- a first accumulator configured to temporarily store the pressurized medium discharged from the first wheel cylinder,
- a first auxiliary supply flow path connected to:
- the first accumulator, and
- a first connection flow path connecting the hydraulic control device and the first wheel cylinder,
- a first pump configured to pressurize the pressurized medium supplied through the first auxiliary supply flow path,
- a motor configured to operate the first pump,
- a first auxiliary flow path configured to transmit the pressurized medium pressurized by the first pump to the first wheel cylinder,
- a first auxiliary supply valve provided in the first auxiliary supply flow path, and configured to control supply of the pressurized medium to the first pump, and
- a first pressure regulating valve configured to regulate pressure of the pressurized medium in the first auxiliary flow path.
11 more elements
A control method of an electric brake system, the electric brake system including:
- a hydraulic pressure supply device configured to generate hydraulic pressure of a pressurized medium,
- a hydraulic control device provided between the hydraulic pressure supply device and a plurality of wheel cylinders, and configured to transmit the pressurized medium with the hydraulic pressure generated by the hydraulic pressure supply device to the plurality of wheel cylinders,
- a first accumulator configured to temporarily store the pressurized medium discharged from a first wheel cylinder among the plurality of wheel cylinders,
- a first auxiliary supply flow path connected to:
- the first accumulator, and
- a first connection flow path connecting the hydraulic control device and the first wheel cylinder,
- a first pump configured to pressurize the pressurized medium supplied through the first auxiliary supply flow path,
- a motor configured to operate the first pump,
- a first auxiliary flow path configured to transmit the pressurized medium pressurized by the first pump to the first wheel cylinder,
- a first auxiliary supply valve provided in the first auxiliary supply flow path, and configured to control supply of the pressurized medium to the first pump, and
- a first pressure regulating valve configured to regulate pressure of the pressurized medium in the first auxiliary flow path,
- the control method comprising:
- receiving a braking request from an external controller while the hydraulic pressure supply device is inoperable;
- and
- in response to the braking request,
- closing the first pressure regulating valve,
- opening the first auxiliary supply valve, and
- controlling the motor to operate the first pump.
15 more elements
Dependencies are inferred from the claim text.