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公开(公告)号：US20220371566A1
公开(公告)日：2022-11-24
申请号：US17741520
申请日：2022-05-11
摘要： The present invention relates to 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：US11421631B2
公开(公告)日：2022-08-23
申请号：US17312333
申请日：2018-12-14
摘要： The present invention relates to a method for controlling an internal combustion engine arrangement (100) connected to an exhaust gas aftertreatment system (200), wherein the method is arranged to control a gas heating device (122), as well as a gas feeding arrangement to direct a flow of intake air through the exhaust gas recirculation conduit (112) from the intake system to the exhaust system, the flow of intake air being directed through the gas heating device before the intake air enters the exhaust gas aftertreatment system, in response to determining a requested start of the internal combustion engine to heat the aftertreatment system before starting the engine.
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公开(公告)号：US11421611B2
公开(公告)日：2022-08-23
申请号：US17256498
申请日：2018-06-29
IPC分类号： F02D41/00 , F02M26/22 , F02B37/20 , F02B37/24 , F02B39/04 , F02B39/10 , F02B67/06 , F02D13/02 , F02D41/26 , F02M35/10 , F02M26/05 , F02M26/16 , F02M26/34 , F02D41/14
摘要： The invention relates to an internal combustion engine comprising a crankshaft, one or more cylinders including a cylinder head, a piston, a combustion chamber, one or more intake valves, one or more exhaust valves, an intake system configured for feeding intake air to the engine, an exhaust system configured for conveying exhaust gas away from the engine, a pressure charging system connected to the intake system and an exhaust gas recirculation (EGR) system arranged to feed branched off exhaust gas from the exhaust system to the intake system via an EGR conduit wherein: —the internal combustion engine includes a valve actuation device configured to allow for late or early closing of the intake valves in accordance with late or early Miller-type valve timing, and wherein—the EGR system includes a gas feeding device configured to feed exhaust gas through the EGR conduit in modes of operation wherein the pressure in the intake system exceeds the pressure in the exhaust system. Additionally, a method of improving efficiency of an internal combustion engine is described.
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公开(公告)号：US11408330B2
公开(公告)日：2022-08-09
申请号：US17256482
申请日：2018-06-29
发明人： Martin Bauer , Fredrik Rahm
IPC分类号： F02B37/04 , F02B37/00 , F02B39/10 , F02D29/06 , F02D41/00 , F02M35/10 , F02D9/02 , F02M35/12 , F04C2/12
摘要： The invention relates to a method of operating a four stroke internal combustion engine system (1), the engine system (1) comprising:—a four stroke internal combustion engine (2) provided with an intake duct (5),—a turbo compressor (6″) arranged to compress intake flow in the intake duct (5), and—a displacement machine (7) provided in the intake duct (5) downstream the turbo compressor (6″), wherein the displacement machine (7) is arranged to displace intake flow from an inlet to an outlet thereof. The method comprises the step of: operating the displacement machine (7) in a first mode where a pressure ratio (PR) given by a pressure at the outlet of the displacement machine (7) divided by a pressure at the inlet of the displacement machine (7) is substantially equal to 1. The invention also relates to a four stroke internal combustion engine system arranged to be operated by the above method.
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公开(公告)号：US12122214B2
公开(公告)日：2024-10-22
申请号：US17808144
申请日：2022-06-22
IPC分类号： B60H1/00 , B60H1/03 , B60H1/32 , B60L7/10 , B60L7/22 , B60L58/15 , B60L58/40 , H01M10/613 , H01M10/625 , H01M10/63 , H01M10/6568 , H01M10/66
CPC分类号： B60H1/00342 , B60H1/00378 , B60H1/00392 , B60H1/034 , B60H1/32281 , B60L7/10 , B60L7/22 , B60L58/15 , B60L58/40 , H01M10/613 , H01M10/625 , H01M10/63 , H01M10/6568 , H01M10/66 , B60L2200/36 , B60L2240/36
摘要： A cooling system for a vehicle propelled by an electric machine. The cooling system is arranged, when the vehicle is operated in a braking mode, to control a first and a second radiator valve to direct a flow of fluid from a radiator through a first fluid circuit and prevent the flow of fluid from the radiator to enter the second fluid circuit, control a compressor arrangement to flow a refrigerant in a direction from a heat exchanger to a condenser of a third fluid conduit, and control a second circuit valve arrangement to direct a heat source fluid to circulate through a heat exchanger and an electric heat source.
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公开(公告)号：US20240123829A1
公开(公告)日：2024-04-18
申请号：US18479874
申请日：2023-10-03
发明人： Fredrik Rahm , Fredrik Larsson
CPC分类号： B60L3/0061 , B60L1/003 , H02J3/00125 , H02J3/003 , H02J3/322 , B60L2220/46 , H02J2300/30
摘要： A method of controlling an electric power system, the method comprising determining, by a processor device of a computer system, a change in power consumption of a power consumer from a first power level to a second power level; and controlling, in response to determining the change in power consumption, an energy dissipater to receive electric power from an electric power source at a third power level, the third power level being a difference between the first power level and the second power level.
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公开(公告)号：US20240001807A1
公开(公告)日：2024-01-04
申请号：US18334540
申请日：2023-06-14
发明人： Fredrik Rahm , Peter Tennevall , Fredrik Larsson
IPC分类号： B60L58/26 , B60L7/16 , B60L1/00 , F04D25/06 , H02K5/167 , H02K5/18 , H02K5/20 , H02K7/116 , H02K11/33
CPC分类号： B60L58/26 , B60L7/16 , B60L1/003 , F04D25/06 , H02K5/1672 , H02K5/18 , H02K5/207 , H02K7/116 , H02K11/33 , F04D17/10
摘要： An energy dissipation system for a vehicle, the energy dissipation system comprising an air compressor comprising a compressor inlet configured to receive ambient air, an electric motor comprising a rotor having a rotor shaft operatively connected to a compressor shaft of the air compressor, power electronics arranged in a power electronics housing, the power electronics being electrically connected to the electric motor and configured to feed electric power to the electric motor, and an air flow channel through which the ambient air is configured to be fed to the compressor inlet, the air flow channel being formed by an inner elongated tube member and an outer elongated tube member, wherein the electric motor is housed within the inner elongated tube member and attached to a first inner surface, and wherein the power electronics housing is attached to a second outer surface.
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8.发明公开公开(公告)号：US20230335765A1
公开(公告)日：2023-10-19
申请号：US18122216
申请日：2023-03-16
发明人： Fredrik Rahm , Johan Lindberg , Carl Löwstedt
IPC分类号： H01M8/04746 , H01M8/04111 , H01M8/0438
CPC分类号： H01M8/04753 , H01M8/04761 , H01M8/04111 , H01M8/0438 , H01M2250/20
摘要： The present disclosure relates to an air management system and a method for controlling an intake air pressure and an exhaust back pressure of a fuel cell system. It further relates to an arrangement comprising a fuel cell system and such an air management system, and to a vehicle. The air management system includes an air pressurizing device arranged to feed intake air to an air compressor of the fuel cell system, a pressure regulating device arranged for regulating the exhaust back pressure, a pressure detection device for detecting an ambient air pressure, and a control device configured to control the air pressurizing device and the valve in dependence on the detected ambient air pressure, wherein the control device is configured to control the intake air pressure to a predetermined first pressure level, and to control the exhaust back pressure to a predetermined second pressure level.
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公开(公告)号：US11754005B2
公开(公告)日：2023-09-12
申请号：US17256511
申请日：2019-06-28
IPC分类号： F02D41/00 , F02D13/02 , F02M26/05 , F02M26/16 , F02M26/34 , F02D41/14 , F02M26/22 , F02B37/20 , F02B37/24 , F02B39/04 , F02B39/10 , F02B67/06 , F02D41/26 , F02M35/10
CPC分类号： F02D41/0007 , F02B37/20 , F02B37/24 , F02B39/04 , F02B39/10 , F02B67/06 , F02D13/0234 , F02D13/0269 , F02D41/0047 , F02D41/0077 , F02D41/1448 , F02D41/26 , F02M26/05 , F02M26/16 , F02M26/22 , F02M26/34 , F02M35/10222 , F02B2275/32 , F02D2200/0406
摘要： The invention relates to an internal combustion engine comprising a crankshaft, one or more cylinders including a cylinder head, a piston, a combustion chamber, one or more intake valves, one or more exhaust valves, an intake system configured for feeding intake air to the engine, an exhaust system configured for conveying exhaust gas away from the engine, a pressure charging system connected to the intake system and an exhaust gas recirculation (EGR) system arranged to feed branched off exhaust gas from the exhaust system to the intake system via an EGR conduit wherein: * the internal combustion engine includes a valve actuation device configured to allow for late or early closing of the intake valves in accordance with late or early Miller-type valve timing, and wherein * the EGR system includes a gas feeding device configured to feed exhaust gas through the EGR conduit in modes of operation wherein the pressure in the intake system exceeds the pressure in the exhaust system, * wherein the gas feeding device is a displacement pump and wherein the gas feeding device is arranged so that exhaust gas recirculating in the EGR system during operation of the engine passes the gas feeding device before being mixed with intake air in the intake system. Additionally, a method of improving efficiency of an internal combustion engine is described.
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公开(公告)号：US20230241539A1
公开(公告)日：2023-08-03
申请号：US18158726
申请日：2023-01-24
发明人： Carl Löwstedt , Fredrik Rahm
IPC分类号： B01D46/24 , B01D46/00 , B01D46/66 , H01M8/0662 , B60L50/72
CPC分类号： B01D46/2411 , B01D46/0004 , B01D46/66 , H01M8/0687 , B60L50/72 , H01M2250/20
摘要： A tube shaped air filter element for a fuel cell vehicle. The air filter element comprises a pair of circumferentially extending ridges on a first inner circumferential envelope surface, each of the pair of ridges protrudes towards a geometric centre axis of the air filter element and is configured to engage with an axially protruding portion of a filter housing.
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