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公开(公告)号：US20240429412A1
公开(公告)日：2024-12-26
申请号：US18692190
申请日：2021-09-30
Applicant: VOLVO TRUCK CORPORATION
Inventor： Tove AUDHAV , Pierig GAILLAUD , Fredrik RAHM
IPC: H01M8/04111 , B60L1/00 , B60L15/20 , B60L50/71 , H01M8/04089 , H01M8/04119 , H01M8/04537 , H01M8/04746
Abstract: A system for a vehicle, having a fuel cell system and a compressed air system for supplying compressed air to a pneumatic device is provided. The fuel cell system includes: a fuel cell having an anode side and a cathode side, an outlet conduit connected to an outlet end of the cathode side, an air inlet conduit connected to an inlet end of the cathode side for supply of air to the cathode side of the fuel cell. An air compressor is disposed in the air inlet conduit, an air filter receives air from an ambient environment. Their filter is arranged at an inlet of the air inlet conduit. The compressed air system includes an electrically operable air compressor connectable to the pneumatic device in fluid communication with the compressor. An air inlet of the compressor is connected to the outlet conduit at a selected position, whereby the compressor receives exhaust air from the cathode side of the at least one fuel cell.
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公开(公告)号：US20220034283A1
公开(公告)日：2022-02-03
申请号：US17312333
申请日：2018-12-14
Applicant: VOLVO TRUCK CORPORATION
Inventor： Johan CARLÉN ANDERSSON , Fredrik RAHM
Abstract: 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：US20200182136A1
公开(公告)日：2020-06-11
申请号：US16301074
申请日：2017-01-12
Applicant: VOLVO TRUCK CORPORATION
Inventor： Peter ANDERSSON , Fredrik RAHM
IPC: F02B37/02 , F01N13/18 , F02B37/18 , F01N13/10 , F02M35/10 , F02B39/14 , F01M11/02 , F16J15/08 , F16J15/00
Abstract: A conduit connection assembly includes a first conduit component having a first mating structure and a second conduit component having a second mating structure adapted to be mated with the first mating structure. A sealing arrangement is provided for sealing between the mating structures. The sealing arrangement includes at least two spaced sealing members defining an intermediate space and the assembly includes a pressure relief opening arranged in communication with the intermediate space between the two spaced sealing members.
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公开(公告)号：US20240083300A1
公开(公告)日：2024-03-14
申请号：US18239537
申请日：2023-08-29
Applicant: Volvo Truck Corporation
Inventor： Fredrik RAHM , Tove AUDHAV , Peter TENNEVALL
Abstract: An electric energy dissipating system for a vehicle. The system includes an electric power system configured to be electrically connected to an electric traction motor of the vehicle and configured to receive and store electric power generated by the electric traction motor during braking, a fluid conduit, an air flow producing unit configured to provide a pressurized air flow through the fluid conduit, an electric machine, and a transmission arrangement. The electric machine is configured to be powered by the electric power system so as to drive the air flow producing unit via the transmission arrangement in order to dissipate energy from the electric machine. The transmission arrangement includes a first shaft and a second shaft. The first shaft is driven by the electric machine and the second shaft drives the air flow producing unit. The second shaft rotates at higher speed than the first shaft.
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公开(公告)号：US20220307433A1
公开(公告)日：2022-09-29
申请号：US17635744
申请日：2019-08-20
Applicant: VOLVO TRUCK CORPORATION
Inventor： Fredrik RAHM , Martin BAUER
Abstract: Provided are methods for operating an internal combustion engine system including: an internal combustion engine provided with a plurality of cylinders, each of which being provided with an air inlet valve and an exhaust gas valve; a fuel supply system configured to supply fuel to the cylinders; an air intake system and an exhaust gas system; a turbocharging arrangement comprising an intake air compressor arranged in the air intake system and an exhaust gas turbine arranged in the exhaust gas system, wherein the intake air compressor is operatively connected to the exhaust gas turbine; a controllable gas feeding device arranged in the air intake system downstream the intake air compressor; an exhaust gas aftertreatment system arranged downstream the exhaust gas turbine; and a wastegate.
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Patent Agency Ranking
公开(公告)号：US20210164389A1
公开(公告)日：2021-06-03
申请号：US16954078
申请日：2017-12-20
Applicant: VOLVO TRUCK CORPORATION
Inventor： Bengt LASSESSON , Fredrik RAHM
IPC: F02B75/02
Abstract: The invention relates to a method (100) for operating an internal combustion engine (2), such as an internal combustion engine of a vehicle (1), the engine (2) comprising an engine cylinder (3) at least partly defining a combustion chamber (4) and a reciprocating piston (5), a number of inlet valves (20) in fluid communication with the combustion chamber and a number of exhaust valves (30) in fluid communication with the combustion chamber, wherein any one of the inlet valves and the outlet valves comprises at least one flow control valve. The method comprises the following steps: opening (105) at least one of the inlet valves and introducing the incoming fluid medium into the cylinder (3) of the engine by performing an intake stroke (S1); compressing (110) the trapped incoming fluid medium in a first compression stroke (CS1) of the cylinder (3), while having the number of the inlet valves and the number of the exhaust valves in a closed state; injecting (115) a quantity of fuel into the cylinder (3) and combusting said injected fuel; performing (120) a first work stroke (WS1) to produce power to a crank shaft of the engine, while controlling said flow control valve to partly exhaust burnt gases at the end of the work stroke; additionally compressing (125) remaining fluid medium in an additional compression stroke (CS2) of the cylinder (3), while having the number of the inlet valves and the number of the exhaust valves in a closed state; additionally injecting (130) an additional quantity of fuel into the cylinder (3); additionally performing (135) an additional work stroke (WS2) to produce power to the crank shaft of the engine, while controlling said flow control valve to partly exhaust burnt gases at the end of the additional work stroke; and opening (180) at least one of the exhaust valves and permitting partly burnt gases to expel from the cylinder via said at least one exhaust valve by performing an exhaust stroke (ES).
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公开(公告)号：US20240270075A1
公开(公告)日：2024-08-15
申请号：US18692137
申请日：2021-09-30
Applicant: VOLVO TRUCK CORPORATION
Inventor： Tove AUDHAV , Pierig GAILLAUD , Fredrik RAHM
IPC: B60L1/00 , B60L50/70 , B60R16/08 , H01M8/04111 , H01M8/04119 , H01M8/04303 , H01M8/04746 , H01M8/0662
CPC classification number: B60L1/003 , B60L50/70 , B60R16/08 , H01M8/04111 , H01M8/04126 , H01M8/04303 , H01M8/04753 , H01M8/0687 , H01M2250/20
Abstract: A system for a vehicle, having a fuel cell system and a compressed air system for supplying compressed air to a pneumatic device. The fuel cell system includes at least one fuel cell having a cathode side, an air inlet conduit connected to an inlet end of the cathode side, an air compressor disposed in the air inlet conduit, an air filter arranged to receive air from an ambient environment. The air filter is arranged at an inlet of the air inlet conduit. A a fluid outlet conduit is connected between an outlet end of the cathode side and an inlet side of an expander, and an exhaust conduit is connected to an exhaust side of the expander. The compressed air system comprising: an electrically operable air compressor connectable to the pneumatic device. A controllable valve assembly fluidly connects an air inlet of the compressor to multiple fluid supply positions. The controllable valve assembly selectively directs air from the outlet conduit position, the air inlet conduit position and at least from one of the air inlet conduit position and the position to the compressed air system in response to an operating condition of the vehicle.
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公开(公告)号：US20240059153A1
公开(公告)日：2024-02-22
申请号：US18361295
申请日：2023-07-28
Applicant: VOLVO TRUCK CORPORATION
Inventor： Fredrik RAHM , Johan Lindberg , Peter Tennevall
CPC classification number: B60L7/22 , B60L3/0076 , B60L2200/36
Abstract: An electric energy dissipating system for a vehicle. An air flow producing unit provides a pressurized air flow through a fluid conduit. A polyphase electric machine runs on a predefined number of phases. The air flow producing unit is mechanically connected to, and operated by, the electric machine. An electric brake resistor arrangement is located downstream of the air flow producing unit, and comprises one resistor unit for each one of said phases. An electric power system is configured to receive electric power generated by an electric traction motor during braking of the vehicle. The power system comprises an inverter which converts a DC input into a polyphase AC output. The electric machine and the resistor arrangement are electrically connected to the inverter in parallel, such that each phase of the AC output of the inverter is connected to a respective phase of the electric machine and to a respective resistor unit, in parallel.
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公开(公告)号：US20220106919A1
公开(公告)日：2022-04-07
申请号：US17494093
申请日：2021-10-05
Applicant: VOLVO TRUCK CORPORATION
Inventor： Johan CARLÉN ANDERSSON , Fredrik RAHM , Ulf ARONSSON
Abstract: Provided herein is internal combustion engine system including: an internal combustion engine; a turbocharger turbine operatively connected to a turbocharger compressor; an air intake system; an exhaust gas system; an exhaust gas recirculation (EGR) conduit; an EGR valve; and a turbomachine arranged in the EGR conduit. Further, the EGR valve and the turbomachine are positioned in relation to each other in the EGR conduit such that a flow of high pressure exhaust gas through the EGR conduit towards the air intake system reaches the EGR valve before reaching the turbomachine; an additional exhaust gas conduit is arranged between the EGR conduit and a point of the exhaust system downstream the turbocharger turbine so as to allow exhaust gas to flow.
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公开(公告)号：US20210180533A1
公开(公告)日：2021-06-17
申请号：US17270309
申请日：2018-08-23
Applicant: VOLVO TRUCK CORPORATION
Inventor： Fredrik RAHM , Johan CARLÉN ANDERSSON
Abstract: The invention relates to a method for operating an internal combustion engine system (2), wherein the internal combustion engine system (2) is provided with an air intake duct (3), an exhaust gas duct (4) and an exhaust gas recirculation (EGR) system (5), wherein the EGR system (5) comprises an EGR conduit (6) that fluidly connects the exhaust duct (4) and the intake duct (3), and wherein a gas feeding device (7) configured to feed exhaust gas from the exhaust duct (4) to the intake duct (3) is arranged in the EGR conduit (6). The method is characterized in that it comprises the step of: detecting an indication of accumulated deposits of soot, hydrocarbons or other contaminants in the gas feeding device (7) by determining whether a rotational friction of a rotary member (71, 72) of the gas feeding device (7) exceeds a threshold value. The invention also relates to an internal combustion engine system (2) configured for being operated by such a method and to a vehicle (1) provided with such an engine system (2). The invention further relates to means for controlling the above method.
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