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US 11,780,418 B2Granted
Electro-hydraulic braking system
AssigneeHyundai Mobis Co., Ltd.
InventorSung Ki Ahn
Life of this patent
Estimating the term…
Abstract
According to an embodiment of the present invention, provided is an electro-hydraulic braking system including an auxiliary braking system capable of performing a 2-channel compression/decompression control and a 1-channel decompression control.
Claims10
An electrically powered hydraulic braking system, comprising:
- a reservoir for storing brake oil;
- a plurality of wheel brake apparatuses configured to provide a braking force to a plurality of wheels by providing hydraulic pressure;
- a main braking system disposed between the reservoir and the plurality of wheel brake apparatuses and configured to deliver brake oil discharged from the reservoir to the wheel brake apparatuses;
- and
- an auxiliary braking system disposed between the main braking system and the plurality of wheel brake apparatuses,
- wherein the auxiliary braking system comprises:
- a first inlet line and a second inlet line which are configured to deliver hydraulic pressure between the main braking system and the plurality of wheel brake apparatuses;
- an actuating unit which is connected to a point on the first inlet line and a point on the second inlet line, is configured to increase the internal hydraulic pressure of the first inlet line and the internal hydraulic pressure of the second inlet line, and includes a first pump and a second pump;
- a first outlet line which is branched from the first inlet line and connects a bifurcation of the first inlet line to the entrance of the first pump;
- and
- a second outlet line which branched from the second inlet line and connects a bifurcation of the second inlet line to the entrance of the second pump,
- wherein the first and second outlet lines are directly connected to each other.
9 more elements
An electrically powered hydraulic braking system, comprising:
- a reservoir for storing brake oil;
- a plurality of wheel brake apparatuses configured to provide a braking force to a plurality of wheels by providing hydraulic pressure;
- a main braking system disposed between the reservoir and the plurality of wheel brake apparatuses and configured to deliver brake oil discharged from the reservoir to the wheel brake apparatuses;
- and
- an auxiliary braking system disposed between the main braking system and the plurality of wheel brake apparatuses,
- wherein the auxiliary braking system comprises:
- a first inlet line and a second inlet line which are configured to deliver hydraulic pressure between the main braking system and the plurality of wheel brake apparatuses;
- an actuating unit which is connected to a point on the first inlet line and a point on the second inlet line, is configured to increase the internal hydraulic pressure of the first inlet line and the internal hydraulic pressure of the second inlet line, and includes a first pump and a second pump;
- a first outlet line which is branched from the first inlet line and connects a bifurcation of the first inlet line to the entrance of the first pump;
- and
- a second outlet line which branched from the second inlet line and connects a bifurcation of the second inlet line to the entrance of the second pump, and
- wherein the auxiliary braking system further comprises:
- a third inlet line configured to deliver hydraulic pressure between the main braking system and the plurality of wheel brake apparatuses;
- and
- a third outlet line adapted to be opened and closed by an outlet valve and configured such that a point on the third inlet line is connected to at least one among the first outlet line and the second outlet line.
12 more elements
An electrically powered hydraulic braking system, comprising:
- a reservoir for storing brake oil;
- a plurality of wheel brake apparatuses configured to provide a braking force to a plurality of wheels by providing hydraulic pressure;
- a main braking system disposed between the reservoir and the plurality of wheel brake apparatuses and configured to deliver brake oil discharged from the reservoir to the wheel brake apparatuses;
- and
- an auxiliary braking system disposed between the main braking system and the plurality of wheel brake apparatuses,
- wherein the auxiliary braking system comprises:
- a first inlet line and a second inlet line which are configured to deliver hydraulic pressure between the main braking system and the plurality of wheel brake apparatuses;
- an actuating unit which is connected to a point on the first inlet line and a point on the second inlet line, is configured to increase the internal hydraulic pressure of the first inlet line and the internal hydraulic pressure of the second inlet line, and includes a first pump and a second pump;
- a first outlet line which is branched from the first inlet line and connects a bifurcation of the first inlet line to the entrance of the first pump;
- and
- a second outlet line which branched from the second inlet line and connects a bifurcation of the second inlet line to the entrance of the second pump,
- wherein the auxiliary braking system further comprises:
- a first traction control valve disposed on the first inlet line and configured to adjust opening and closing of the first inlet line;
- and
- a second traction control valve disposed on the second inlet line and configured to adjust opening and closing of the second inlet line, and
- wherein the auxiliary braking system further comprises:
- a first inlet valve disposed between (1) a point on the first inlet line, which is formed backward of the first traction control valve and (2) a bifurcation with the first outlet line, and configured to regulate opening and closing of the first inlet line;
- and
- a second inlet valve disposed between (1) a point on the second inlet line, which is formed backward of the second traction control valve and (2) a bifurcation with the second outlet line, and configured to regulate opening and closing of the second inlet line.
16 more elements
Dependencies are inferred from the claim text.