Electronic brake for vehicle and control method therefor
AssigneeHyundai Mobis Co., Ltd.
InventorJae Il LIM
Life of this patent
Estimating the term…
Abstract
An electronic brake for a vehicle and a control method therefor according to an embodiment of the present disclosure are able to stably generate a required braking force by controlling an auxiliary brake device by an auxiliary controller, if a flow path on the auxiliary brake device that connects a main brake device and a wheel brake is unintentionally closed.
Claims14
A control method for an electronic brake for a vehicle, the electronic brake comprising a first brake device including a first pressurizer, that is configured to supply hydraulic pressure to a plurality of wheel brakes, a second brake device including a second pressurizer, that is connected between a first wheel brake group including at least part of the plurality of wheel brakes and configured to supply hydraulic pressure to the first wheel brake group, and a control unit including a first controller for controlling the first brake device and a second controller for controlling the second brake device,
- the method comprising:
- determining, by the control unit, whether the first brake device is operating normally;
- determining, by the control unit, whether a connecting flow path connecting an outlet of the first pressurizer and an outlet of the second pressurizer is closed;
- calculating, by the control unit, a first required braking force which the first wheel brake group needs to apply to the vehicle;
- and
- a pressure increasing step in which, based on a determination that the first brake device is operating normally and the connecting flow path is closed, the second controller controls the second brake device so that the second pressure device pressurizes fluid, based on the first required braking force being greater than a braking force applied to the vehicle by the first wheel brake group.
An electronic brake for a vehicle, the electronic brake comprising:
- a first brake device including a first pressurizer, that is configured to supply hydraulic pressure to a plurality of wheel brakes;
- a second brake device including a second pressurizer, that is connected between a first wheel brake group including at least part of the plurality of wheel brakes and configured to supply hydraulic pressure to the first wheel brake group;
- and
- a control unit including a receiver for receiving at least one of a stroke signal of a brake pedal or a brake signal generated by an autonomous driving system, a first controller for controlling the first brake device, a second controller for controlling the second brake device, a device status determination unit for determining whether the first brake device is operating normally, a connection status determination unit for determining whether a connecting flow path connecting an outlet of the first pressurizer and an outlet of the second pressurizer is closed, and a required braking force calculator for calculating a first required braking force which the first wheel brake group needs to apply to the vehicle.
Dependencies are inferred from the claim text.