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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
摘要： 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
发明人： Karol Zelent
CPC分类号： B60T13/683 , B60T13/268 , B60T13/36 , B60T2270/413
摘要： 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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公开(公告)号：US11971026B2
公开(公告)日：2024-04-30
申请号：US17400479
申请日：2021-08-12
发明人： Chad Lemon , Ramesh Pai , Alan Williams
CPC分类号： F04B39/122 , B60T13/26 , F04B39/108 , F04B39/0094 , F04B39/1086 , F04B39/125 , F04B53/007 , F04B53/1085
摘要： 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
发明人： Philipp Kirmaier , Simon Streiber
IPC分类号： B60T8/17 , B60T7/20 , B60T8/172 , B60T8/1755 , B60T8/24 , B60T13/12 , B60T13/26 , B60T13/66 , B60T13/68 , B60T17/22
CPC分类号： 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
摘要： 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
发明人： Ulrich Couppee , Lukasz Drelich , Robert Otremba , Karl-Heinz Riediger-Janisch , Pawel Swiatek , Leszek Toma
CPC分类号： B60T15/203 , B60T13/683 , B60T13/263
摘要： 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
申请人： Deere & Company
CPC分类号： B60T17/02 , B60C23/002 , B60T13/268 , B60T2260/08
摘要： 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
发明人： Xianbin Li , Letian Wang
CPC分类号： B60T13/662 , B60T13/268 , B60T13/45 , B60T13/581 , B60T7/12
摘要： 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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公开(公告)号：US20230264669A1
公开(公告)日：2023-08-24
申请号：US18303252
申请日：2023-04-19
发明人： Julian van Thiel
CPC分类号： B60T13/683 , B60T13/263 , B60T2270/403
摘要： An electropneumatic device for a pneumatic braking system, including a compressed air reservoir for providing a reservoir pressure; a brake pressure modulator which receives reservoir pressure and outputs a brake pressure at a brake pressure connection in a manner dependent on electronic braking request signals; a protective valve unit with a protective valve inlet, a first protective outlet and a second protective outlet; the protective valve inlet receiving the brake pressure and which it can provide at the first and second protective outlets; a first and a second pressure line; and, a brake actuator that is connected to the pressure lines. The protective valve unit is configured to throttle the brake pressure output at the first protective outlet in the event of leakage of the first pressure line and to throttle the brake pressure output at the second protective outlet in the event of leakage of the second pressure line.
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9.发明公开公开(公告)号：US20230219548A1
公开(公告)日：2023-07-13
申请号：US18187978
申请日：2023-03-22
发明人： Shan GAO , Chunjie XIE , Jiaying QIN , Congxi WEN , Huaming LI , Jianquan LIANG , Zhenhong WANG , Hongmei XU , Xiaolei WANG , Liming SHANG , Xuansheng CHEN
CPC分类号： B60T11/101 , B60T8/1705 , B60T8/171 , B60T13/26 , B60T13/683 , B60T17/228
摘要： Disclosed are a pressure control method and a pressure control device for a braking cylinder of a rail vehicle, and the rail vehicle. The method includes the following steps: acquiring the air charge-release volume of the braking cylinder of the rail vehicle and the air flowrate of the braking cylinder; determining the charge-release duration according to the air charge-release volume of the braking cylinder and the air flowrate of the braking cylinder, and controlling the charge-release working duration of the air charge-release solenoid valve according to the air charge-release duration; when the working duration of the air charge-release solenoid valve reaches the charge-release duration, acquiring the predictive pressure of the braking cylinder, and controlling the working state of the air charge-release solenoid valve according to the predictive pressure.
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10.发明公开公开(公告)号：US20230182710A1
公开(公告)日：2023-06-15
申请号：US18072846
申请日：2022-12-01
发明人： Mats RYDSTRÖM , Fredrik RAHM , Tove AUDHAV , Martin WILHELMSSON
IPC分类号： B60T17/00 , B60T13/26 , B60T8/17 , F16D65/78 , B60T17/22 , B60T5/00 , B60T13/68 , B60T17/02 , B60T8/32
CPC分类号： B60T17/002 , B60T5/00 , B60T8/1701 , B60T8/3215 , B60T13/26 , B60T13/683 , B60T17/02 , B60T17/22 , F16D65/78 , B60T2250/00 , B60T2270/88 , F16D2065/782 , F16D2065/783 , F16D2066/001
摘要： A system for use in connection with a wheel torque generating component in a heavy-duty vehicle. The system comprises a fluid conduit, a compressor configured to provide a pressurized air flow through the fluid conduit, a mass flow adding arrangement configured to add a fluid to the pressurized air flow in the fluid conduit, thereby increasing the mass flow of the pressurized air flow, and a flow directing device arranged downstream of the mass flow adding arrangement and configured to direct the pressurized air flow, including the added fluid, from the fluid conduit to the wheel torque generating component so as to control the temperature of the wheel torque generating component. The invention also relates to a method for use in connection with a wheel torque generating component in a heavy-duty vehicle.
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