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公开(公告)号：US20250058756A1
公开(公告)日：2025-02-20
申请号：US18933360
申请日：2024-10-31
Applicant: Volvo Truck Corporation
Inventor： Fredrik Rahm , Tove Audhav , Vijai Shankar Bhavani shankar
Abstract: A braking arrangement for a vehicle, the braking arrangement comprising an electric machine electrically connectable to an electric power source, a brake compressor positioned in an air flow conduit, the brake compressor being configured to pressurize a flow of air and to exhaust the pressurized flow of air, and a compressor shaft mechanically connecting the electric machine and the brake compressor to each other, wherein the electric machine is configured to generate a torque on the compressor shaft for operating the brake compressor to pressurize the flow of air, the braking arrangement further comprising an air bearing arrangement, the air bearing arrangement being fluidly connectable to a pressurized brake air tank of the vehicle via an air bearing conduit, wherein the air bearing arrangement is suspending the compressor shaft to at least one of the electric machine and the brake compressor.
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公开(公告)号：US20250010832A1
公开(公告)日：2025-01-09
申请号：US18761924
申请日：2024-07-02
Applicant: ZF CV Systems Global GmbH
Inventor： Michael Haverkamp , Mirko Brütt
Abstract: The invention relates to a pneumatic valve system (5) for a braking system of a towing vehicle. The pneumatic valve system (5) comprises a valve block (28) comprising a supply pressure inlet (29), a towing vehicle supply pressure outlet (30) and a towing vehicle control pressure outlet (32), as well as a control valve (6), a redundancy valve (7), and a brake valve (10). The pneumatic valve system (5) permits a redundant pressure supply of a brake cylinder of a parking brake of the towing vehicle by connecting the valves and the supply pressure outlet and outlets to one another in a very compact and stable manner.
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公开(公告)号：US12151662B2
公开(公告)日：2024-11-26
申请号：US17192983
申请日：2021-03-05
Applicant: WABCO Europe BVBA
Inventor： Mirko Brütt , Ivo Laskawy , Lars Volker
Abstract: A method of brake control of a vehicle combination (2) composed of a tractor vehicle (4) with an electronically controlled braking system (5) and a trailer vehicle (6, 8) with a pneumatically controlled pneumatic braking system (7, 9), involves introducing the brake control pressure (pBC) of the trailer vehicle (6, 8) into a tractor brake control line (19) extending to a tractor vehicle-side “brake” coupling head (26) via an electronically controlled trailer control valve (13) of the tractor vehicle (4). At the beginning of a braking operation, a pressure pulse (34) exceeding a target brake control pressure (pBC_soll) is introduced into the tractor brake control line (19). The volume of a trailer brake control line (28, 29, 32) coupled to the “brake” coupling head (26) is ascertained, and the absolute value (ΔpPI) and/or the duration (ΔtPI) of the pressure pulse (34) introduced are/is established depending on the ascertained volume.
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公开(公告)号：US20240278762A1
公开(公告)日：2024-08-22
申请号：US18651880
申请日：2024-05-01
Applicant: MARATHON PETROLEUM COMPANY LP
Inventor： David E. Pittman, JR.
Abstract: Systems and methods for a vent interlock system to ensure vent cover closure prior to operation of a transportation vehicle. An embodiment of a system may include an interlock bar. The interlock bar may, in a lowered position, prevent a hydraulic valve handle of a hydraulic pump assembly from moving from an open position to a closed position, the hydraulic valve handle in the closed position to allow a vent cover of the trailer to be opened. The system may include a plunger valve connected to brakes of the transportation vehicle to lock the brakes of the transportation vehicle to prevent operation of the transportation vehicle when the interlock bar is raised. The system may include a spring operated latch attached to the transportation vehicle to hold the interlock bar in the lowered position via a notch or aperture in the interlock bar.
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公开(公告)号：US20240227764A1
公开(公告)日：2024-07-11
申请号：US18407622
申请日：2024-01-09
Applicant: ZF CV Systems Global GmbH
Inventor： Karol Zelent
CPC classification number: B60T13/683 , B60T13/268 , B60T13/36 , B60T2270/413
Abstract: An electropneumatic valve unit (100, 200) for a vehicle brake system has a plurality of valve sections (102; 104; 106; 108; 204; 206) integrated into a single valve housing (101). The plurality of valve sections (102; 104; 106; 108; 204; 206) includes a front axle redundancy section (102) configured to provide a redundant supply or control pressure for controlling brakes associated with a front axle of a vehicle or a tractor, and a trailer control section (104; 204) for providing supply and/or control pressure to a trailer connected to the tractor. The redundant supply or control pressure for controlling brakes associated with the front axle of the vehicle at the front axle redundancy section (102) is derived from an output pressure of the trailer control section (104; 204).
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Patent Agency Ranking
公开(公告)号：US11971026B2
公开(公告)日：2024-04-30
申请号：US17400479
申请日：2021-08-12
Applicant: ZF CV Systems Europe BV
Inventor： Chad Lemon , Ramesh Pai , Alan Williams
CPC classification number: F04B39/122 , B60T13/26 , F04B39/108 , F04B39/0094 , F04B39/1086 , F04B39/125 , F04B53/007 , F04B53/1085
Abstract: An improved air compressor is provided. The air compressor includes a cylinder block having a head deck that defines a piston bore for reciprocal movement of a piston therein. The head deck further includes first and second ramped surfaces that slope downward toward the peripheral edge of the piston bore. A valve plate is in direct contact with the upper surface of the head deck, the valve plate having a leaf valve. During an intake stroke of the piston, the leaf valve deflects downward into direct engagement with the first and second ramped surfaces. Because the air compressor lacks a lower gasket between the valve plate and the head deck, the cost and assembly time associated with the lower gasket are eliminated.
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公开(公告)号：US11964647B2
公开(公告)日：2024-04-23
申请号：US18258618
申请日：2021-12-03
Applicant: AGCO International GmbH
Inventor： Philipp Kirmaier , Simon Streiber
IPC: B60T8/17 , B60T7/20 , B60T8/172 , B60T8/1755 , B60T8/24 , B60T13/12 , B60T13/26 , B60T13/66 , B60T13/68 , B60T17/22
CPC classification number: B60T8/1708 , B60T7/20 , B60T8/1701 , B60T8/172 , B60T8/1755 , B60T8/245 , B60T13/12 , B60T13/26 , B60T13/263 , B60T13/66 , B60T13/68 , B60T17/22 , B60T2201/04 , B60T2250/00 , B60T2250/02 , B60T2250/03 , B60Y2200/147 , B60Y2200/221
Abstract: Systems and methods are provided for controlling operation of a trailer brake system associated with an agricultural vehicle-trailer combination. A coupling force between the vehicle and the trailer is determined and used to control operation of the trailer brake system in dependence thereon. A primary control strategy is used in dependence on the determined coupling force being within a coupling force range; and one or more secondary control strategies are used in dependence on the determined coupling force being outside of the coupling force range.
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公开(公告)号：US20230398973A1
公开(公告)日：2023-12-14
申请号：US18032575
申请日：2020-10-21
Applicant: ZF CV Systems Europe BV
Inventor： Ulrich Couppee , Lukasz Drelich , Robert Otremba , Karl-Heinz Riediger-Janisch , Pawel Swiatek , Leszek Toma
CPC classification number: B60T15/203 , B60T13/683 , B60T13/263
Abstract: A trailer brake control module (300a; 300b; 300c) for a towing vehicle (502) facilitating braking of a towed vehicle or trailer (504) includes a pressure supply port (P11), a trailer control pressure port (P22), a primary control port (P42) for receiving either directly and/or indirectly a control brake pressure for operating the trailer brake control module (300a; 300b; 300c). The primary control port (P42) receives the control brake pressure from a pneumatically operated pressure medium, a pneumatic control pressure line (308.1) provides alternative control brake pressure for operating the trailer brake control module (300a; 300b; 300c), wherein the pneumatic control pressure line (308.1) receives the alternative control brake pressure from an electronically operated pressure medium, and a relay valve (310) is activated using either the control brake pressure received at the primary control port (P42), or the alternative control brake pressure from the pneumatic control pressure line (308.1).
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公开(公告)号：US11794711B2
公开(公告)日：2023-10-24
申请号：US17197421
申请日：2021-03-10
Applicant: Deere & Company
Inventor： Anuja Kale , Dilip M. Jayavant , Benjamin L. Borgmann , Patrick A. Schweigel
CPC classification number: B60T17/02 , B60C23/002 , B60T13/268 , B60T2260/08
Abstract: One or more techniques and systems are described herein for synchronized air delivery method between a vehicle's central tire inflation system (CTIS) and an air trailer brake (ATB) system. A synchronized air delivery system can utilize a shared air source as a common shared input to drive two different systems, including the ATB system and CTIS. Based on ATB and CTIS air need feedback, an air compressor clutch can automatically control ON and OFF modes for air inputs using a control algorithm. Air can be provided to the ATB system, to provide air to brakes on a coupled trailer, over the tire inflation operation, such as during a braking event.
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公开(公告)号：US20230286481A1
公开(公告)日：2023-09-14
申请号：US18118947
申请日：2023-03-08
Applicant: Beijing Tusen Zhitu Technology Co., Ltd.
Inventor： Xianbin Li , Letian Wang
CPC classification number: B60T13/662 , B60T13/268 , B60T13/45 , B60T13/581 , B60T7/12
Abstract: The present application discloses a braking method, a vehicle and a medium, wherein the vehicle comprises a primary braking system, a parking brake, an auxiliary high-pressure gas tank, and a retarder, and the braking method comprises: determining whether a current air pressure value of the auxiliary high-pressure gas tank reaches a preset air pressure value; controlling, in response to the current air pressure value not reaching the preset air pressure value, the auxiliary high-pressure gas tank to carry out air pressure loading; and controlling, in response to failure of the primary braking system and the current air pressure value reaching the preset air pressure value, a first braking torque of the parking brake and a second braking torque of the retarder according to a deceleration signal of the vehicle so as to control the vehicle to brake.
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