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US 12,162,445 B2Granted
Hydraulic unit for a service brake assembly of a hydraulic power-brake system
AssigneeRobert Bosch GmbH
InventorsAndreas Weh, Juergen Tandler, Matthias Mayr, Stefan Kaserer
Life of this patent
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Abstract
A drilling of a hydraulic unit of a service brake assembly of a vehicle hydraulic-power brake system.
Claims6
A hydraulic unit for a service brake assembly of a hydraulic power-brake system for an autonomously driving motor vehicle, comprising:
- an upper side which configured for mounting a brake-fluid reservoir and which has ports for the brake-fluid reservoir;
- an attachment side, which adjoins the upper side, configured to secure the hydraulic unit to a firewall of the motor vehicle and at which a brake master-cylinder bore opens out;
- and
- a motor side that adjoins the upper side and the attachment side and at which a power-cylinder bore opens out, the brake master-cylinder bore being located in the hydraulic unit between the power-cylinder bore and the upper side, and the motor side having a first port for a secondary brake assembly close to the upper side;
- wherein a first feed line in the hydraulic unit runs from a first port of the ports for the brake-fluid reservoir in a direction of the brake master-cylinder bore;
- wherein the first feed line runs from the first port for the brake-fluid reservoir in the direction of the brake master-cylinder bore, and after angling, runs between the brake master-cylinder bore and the upper side of the hydraulic unit to a first pressure line that connects the first port for the secondary brake assembly to the brake master-cylinder bore.
3 more elements
A hydraulic unit for a service brake assembly of a hydraulic power-brake system for an autonomously driving motor vehicle, comprising:
- an upper side which configured for mounting a brake-fluid reservoir and which has ports for the brake-fluid reservoir;
- an attachment side, which adjoins the upper side, configured to secure the hydraulic unit to a firewall of the motor vehicle and at which a brake master-cylinder bore opens out;
- and
- a motor side that adjoins the upper side and the attachment side and at which a power-cylinder bore opens out, the brake master-cylinder bore being located in the hydraulic unit between the power-cylinder bore and the upper side, and the motor side having a first port for a secondary brake assembly close to the upper side;
- wherein a first feed line in the hydraulic unit runs from a first port of the ports for the brake-fluid reservoir in a direction of the brake master-cylinder bore;
- wherein the motor side has a second port for the secondary brake assembly between a second port of the ports for the brake-fluid reservoir and the brake master-cylinder bore, a suction line runs from a third port of the ports for the brake-fluid reservoir to the brake master-cylinder bore, and a second feed line runs from the brake master-cylinder bore in a direction of the upper side of the hydraulic unit, and after angling, runs to the second port for the secondary brake assembly.
3 more elements
A hydraulic unit for a service brake assembly of a hydraulic power-brake system for an autonomously driving motor vehicle, comprising:
- an upper side which configured for mounting a brake-fluid reservoir and which has ports for the brake-fluid reservoir;
- an attachment side, which adjoins the upper side, configured to secure the hydraulic unit to a firewall of the motor vehicle and at which a brake master-cylinder bore opens out;
- and
- a motor side that adjoins the upper side and the attachment side and at which a power-cylinder bore opens out, the brake master-cylinder bore being located in the hydraulic unit between the power-cylinder bore and the upper side, and the motor side having a first port for a secondary brake assembly close to the upper side;
- wherein a first feed line in the hydraulic unit runs from a first port of the ports for the brake-fluid reservoir in a direction of the brake master-cylinder bore;
- wherein the hydraulic unit has a mounting for a test valve in a valve side opposite the motor side, from which a line leads tangentially into the brake master-cylinder bore at a peripheral location facing the upper side, and a compensating line runs from the mounting for the test valve parallel to the brake master-cylinder bore, and after angling, runs in a direction of the upper side of the hydraulic unit, and after a further angling, leads into one of the ports for the brake-fluid reservoir.
3 more elements
Dependencies are inferred from the claim text.