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1. 发明申请

WO2022124958A1 CONTROLLING VALVE ACTUATION OF AN INTERNAL COMBUSTION ENGINE 审中-公开
公开(公告)号：WO2022124958A1
公开(公告)日：2022-06-16
申请号：PCT/SE2021/051106
申请日：2021-11-05
申请人： SCANIA CV AB [SE]/[SE]
发明人： HÖCKERDAL, Erik , ORRLING, Stefan , LEUFVEN, Oskar , LIND, Erik , KROON, John
IPC分类号： F02B37/12 , F02D13/02
摘要： The disclosure concerns a method and a control arrangement (38) for controlling valve actuation of an ICE (4) comprising an exhaust valve (20), an intake valve (22), and a turbo compressor (50). The method comprises and the control arrangement (38) is configured to: limiting/limit valve actuation changes of the exhaust and intake valves based on compressor data including surge limit data for the turbo compressor and one or both of a current turbo compressor rotational speed and a current turbo compressor pressure ratio, to maintain a turbo compressor mass flow above a limit mass flow value.

2. 发明申请

WO2020067958A1 METHOD AND CONTROL UNIT FOR HANDLING A VARYING LOAD APPLIED TO A COMPONENT 审中-公开
公开(公告)号：WO2020067958A1
公开(公告)日：2020-04-02
申请号：PCT/SE2019/050872
申请日：2019-09-17
申请人： SCANIA CV AB
发明人： SVÄRD, Henrik , HÖCKERDAL, Erik , LARSSON, Anders , KARLSSON, Martin , EKSTRÖM, Madeleine , LEUFVEN, Oskar
IPC分类号： G01M17/00 , G01D1/18 , G01N3/00 , G07C5/00
摘要： A method and a control unit for determining and handling a varying load being applied to a component are presented. the method includes: - determining a signal S load representing the varying load; - determining extreme values S extr_1, S extr_2, …, S extr_k for the varying load signal S load ; - storing the extreme values S extr_1, S extr_2,..., S extr_k in a buffer memory; - determining that at least one closed cycle is included in the varying load signal S load, the determining of each included closed cycle being based on three consecutive extreme values S extr_k-2 , S extr_k-1 , S extr_k stored in the buffer memory; - determining at least one cycle representing value S cycle_1, S cycle_2, …, S cycle_n related to the at least one determined closed cycle, respectively; - storing the determined at least one cycle representing value S cycle_1, S cycle_2, …, S cycle_n in at least one closed cycle data memory; - deleting at least one of the three consecutive extreme values S extr_k-2, S extr_k-1, S extr_k of each determined closed cycle from the buffer memory; and - performing at least one action based on at least one cycle representing value S cycle_1, S cycle_2, …, S cycle_n stored in the at least one closed cycle data memory.

3. 发明申请

WO2018013041A1 METHOD AND SYSTEM FOR STOPPING AN INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：用于停止内燃机的方法和系统
公开(公告)号：WO2018013041A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050758
申请日：2017-07-06
申请人： SCANIA CV AB
发明人： HÖCKERDAL, Erik , STENLÅÅS, Ola
IPC分类号： F01L13/08 , F02D41/04
摘要： The present invention relates to a method for stopping an internal combustion engine (101), said internal combustion engine (101) having at least one combustion chamber (209) and a crankshaft (112) being arranged to be propelled by said at least one combustion chamber (209), wherein intake of gas to said at least one combustion chamber (209) is controlled by at least one intake valve (211), and wherein evacuation of said at least one combustion chamber (209) is controlled by at least one exhaust valve (213). The method includes, when said internal combustion engine (101) is to be stopped: - turning off fuel injection, - with fuel injection turned off, controlling an intake valve (211) and/or an exhaust valve (213) of said at least one combustion chamber (209) such that, following compression in said at least one combustion chamber (209), pressure in said combustion chamber (209) is reduced to reduce a crankshaft (112) propelling power caused by gas expansion following said compression.
摘要翻译：用于停止内燃机（101）的方法技术领域本发明涉及一种用于停止内燃机（101）的方法，所述内燃机（101）具有至少一个燃烧室（209）和曲轴（112），所述曲轴被所述至少一个燃烧室（209）推进，其中通过至少一个进气阀（211）控制到所述至少一个燃烧室（209）的气体的吸入，并且其中所述至少一个燃烧室 209）由至少一个排气阀（213）控制。该方法包括，当要停止所述内燃机（101）时： - 关闭燃料喷射， - 关闭燃料喷射，控制所述至少所述内燃机（101）的进气门（211）和/或排气门（213）一个燃烧室（209），使得在所述至少一个燃烧室（209）中的压缩之后，所述燃烧室（209）中的压力减小，以减少曲轴（112）推动由所述压缩之后的气体膨胀引起的功率。 / p>

4. 发明申请

WO2018013028A1 METHOD AND SYSTEM FOR CONTROLLING THE WASTE HEAT RECOVERY SYSTEM AT A PREDICTED DOWNHILL SLOPE 审中-公开
标题翻译：用于在预测的下坡斜坡上控制废热回收系统的方法和系统
公开(公告)号：WO2018013028A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050486
申请日：2017-05-12
申请人： SCANIA CV AB
发明人： JOHANSSON, Björn , HÖCKERDAL, Erik , TIMREN, Thomas
IPC分类号： F02G5/02 , B60W40/06 , B60W50/00 , F01K23/06 , F01K23/10 , F01N5/02
摘要： The invention relates to a method for controlling a waste heat recovery system (10) associated with a powertrain (3) of a vehicle (1), the powertrain (3) comprising a combustion engine (2) and a gearbox (4) connected to the combustion engine (2), the waste heat recovery system (10) comprising a working fluid circuit (12); an evaporator (14); an expander (16); a condenser (18); a reservoir (20) for a working fluid (WF) and a pump (22) arranged to pump the working fluid (WF) through the circuit (12), wherein the evaporator (14) is arranged for heat exchange between the working fluid (WF) and at least one heat source (24), wherein the waste heat recovery system (10) further comprises a cooling circuit (26) arranged in connection to the condenser (18), and wherein the expander (16) is mechanically connected to the powertrain (3). The method comprises the steps of: predicting (s101) a downhill slope which will require braking of the vehicle; reducing (s102) the temperature of the evaporator (14) to a predetermined temperature; and turning off (s103) the pump (22) and thus the waste heat recovery system (10). The invention also relates to a waste heat recovery system (10), a vehicle (1) comprising such a system (10), a computer program (P) and a computer program product.
摘要翻译：本发明涉及一种用于控制与车辆（1）的动力系统（3）相关联的废热回收系统（10）的方法，所述动力系统（3）包括内燃机（2）和连接到所述内燃机（2）的齿轮箱（4），所述废热回收系统（10）包括工作流体回路（12）; 一个蒸发器（14）; 一个膨胀器（16）; 一个冷凝器（18）; 用于工作流体（WF）的储存器（20）和布置成通过回路（12）泵送工作流体（WF）的泵（22），其中，蒸发器（14）布置成用于在工作流体 WF）和至少一个热源（24），其中所述废热回收系统（10）还包括布置成与所述冷凝器（18）连接的冷却回路（26），并且其中所述膨胀器（16）机械地连接到动力总成（3）。该方法包括以下步骤：预测（s101）需要制动车辆的下坡; 将所述蒸发器（14）的温度降低（S102）至预定温度; 并关闭（S103）泵（22）并因此关闭废热回收系统（10）。本发明还涉及一种废热回收系统（10），包括这种系统（10）的车辆（1），计算机程序（P）和计算机程序产品。

5. 发明申请

WO2022250597A1 METHOD OF CONTROLLING INLET VALVES AND EXHAUST VALVES OF AN INTERNAL COMBUSTION ENGINE, CONTROL ARRANGEMENT, COMBUSTION ENGINE, AND VEHICLE 审中-公开
公开(公告)号：WO2022250597A1
公开(公告)日：2022-12-01
申请号：PCT/SE2022/050499
申请日：2022-05-23
申请人： SCANIA CV AB
发明人： GÖRANSSON, Hans , ANDERSSON, Henrik , JOHANSSON, Pontus , RODEBÄCK, Joakim , DAHL, Andreas , HÖCKERDAL, Erik , ANDERBERG, Bengt
IPC分类号： F02D13/04 , F01L1/34 , F01L13/06
摘要： A method (100) of controlling inlet valves (18) and exhaust valves (24) of a cylinder (10) of an internal combustion engine (1) to obtain an engine braking effect is disclosed. The method (100) comprises the steps of preventing (110) at least one exhaust valve (24) of the cylinder (10) from closing completely during a plurality of successive intake, compression, expansion, and exhaust strokes (41 - 44) of the cylinder (10), phase shifting (120) control of at least one exhaust valve (24) and regulating (130) the amount of air being pumped through the cylinder (10) by phase shifting control of at least one inlet valve (18) of the cylinder (10). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), an internal combustion engine (1), and a vehicle (40) comprising an internal combustion engine (1).

6. 发明申请

WO2018013037A1 METHOD FOR CHANGING GEAR RATIO IN A GEARBOX OF A VEHICLE 审中-公开
标题翻译：一种改变车辆齿轮箱中齿轮比的方法
公开(公告)号：WO2018013037A1
公开(公告)日：2018-01-18
申请号：PCT/SE2017/050714
申请日：2017-06-28
申请人： SCANIA CV AB
发明人： GUNNARSSON, Niclas , HÖCKERDAL, Erik
IPC分类号： F16H63/50 , F01L1/34 , F01L13/06 , F02D13/04 , F16H61/21
摘要： The invention relates to a method for changing gear ratio in a gearbox (4) of a vehicle (1). The method comprises the steps of: a) receiving a first signal (S1) that the gear ratio should be changed; b) calculating the braking torque that the internal combus- tion engine (2) should provide in order to reduce the rotational speed of the internal combustion engine (2) to a target rotational speed at which the internal combustion engine (2) should be running after the gear ratio has been changed; c) phase-shifting the at least one second camshaft (28) in relation to the crankshaft (16), so that the at least one second camshaft (28) is phase-shifted to a state, where the at least one exhaust valve (24) is controlled in such a way, that it is opened during the expansion stroke of the internal combustion engine (2) and closed during the exhaust stroke of the internal combustion engine (2); d) disconnecting the internal combustion engine (2) from the at least one driving wheel (6); e) opening and closing the at least one exhaust valve (24) with a decompression device in the transition area between an exhaust stroke and an inlet stroke and also between a compression stroke and an expansion stroke, when the piston (12) is at a top dead centre in the cylinder (10) in order to achieve engine braking through compression in the cylinders (10) during the exhaust stroke and the compression stroke, and f) shifting gear in the gearbox (4). The invention also relates to a vehicle (1) comprising a gearbox (4) in which the gear ratio is changed by the method. (Fig. 4)
摘要翻译：本发明涉及一种用于改变车辆（1）的齿轮箱（4）中的传动比的方法。该方法包括以下步骤：a）接收第一信号（S1），该第一信号应该改变传动比; b）计算内燃机（2）应该提供的制动转矩，以便将内燃机（2）的转速降低到内燃机（2）应当运行的目标转速传动比改变后; c）使所述至少一个第二凸轮轴（28）相对于所述曲轴（16）相移，从而使所述至少一个第二凸轮轴（28）相移至所述至少一个排气阀（28）在内燃机（2）的膨胀冲程期间打开并且在内燃机（2）的排气冲程期间关闭; d）将所述内燃机（2）与所述至少一个驱动轮（6）断开; e）当所述活塞（12）位于所述活塞（12）处于所述过渡区域时，在排气冲程和入口冲程之间以及在压缩冲程和膨胀冲程之间的过渡区域中用减压装置打开和关闭所述至少一个排气阀（10）中的上死点，以便在排气冲程和压缩冲程期间通过气缸（10）中的压缩实现发动机制动，以及f）在变速箱（4）中换档。本发明还涉及一种包括齿轮箱（4）的车辆（1），其中通过该方法改变传动比。（图4）

7. 发明申请

WO2017135865A1 A METHOD FOR CONTROLLING A WASTE HEAT RECOVERY SYSTEM AND SUCH A WASTE HEAT RECOVERY SYSTEM 审中-公开
标题翻译：一种控制废热回收系统的方法和这种废热回收系统
公开(公告)号：WO2017135865A1
公开(公告)日：2017-08-10
申请号：PCT/SE2017/050019
申请日：2017-01-11
申请人： SCANIA CV AB
发明人： JOHANSSON, Björn , HÖCKERDAL, Erik , BLOM, Ola
IPC分类号： F02G5/00 , B60W10/06 , B60W10/30 , B60W50/00 , F01K13/02 , F01K23/06
CPC分类号： B60W10/06 , B60W10/30 , B60W50/00 , F01K13/02 , F01K23/06 , F01K23/065 , F01K23/10 , F02G5/00 , F02G5/02 , Y02T10/166
摘要： The invention relates to a method for controlling a waste heat recovery system (10) associated with a combustion engine (2) of a vehicle (1), the waste heat recovery system (10) comprising a working fluid circuit (12); at least one evaporator (14); an expander (16); a condenser (18); a reservoir (20) for a working fluid (WF) and a pump (22) arranged to pump the working fluid (WF) through the circuit (12), wherein the at least one evaporator (14) is arranged for heat exchange between the working fluid (WF) and a heat source (24), and wherein the waste heat recovery system (10) further comprises a cooling circuit (26) arranged in connection to the condenser (18). The method comprises the steps of: predicting (s101) a shutdown of a combustion engine (2) associated with the system (10); determining (s102) if a predetermined requirement is fulfilled; and if so reducing (s103) the temperature in the waste heat recovery system (10) prior to combustion engine shutdown. The invention also relates to a waste heat recovery system (10), a vehicle (1) comprising such a system (10), a computer program (P) and a computer program product.
摘要翻译：本发明涉及一种用于控制与车辆（1）的内燃机（2）相关联的废热回收系统（10）的方法，所述废热回收系统（10）包括工作流体回路（12）; 至少一个蒸发器（14）; 一个膨胀器（16）; 一个冷凝器（18）; 用于工作流体（WF）的储存器（20）和布置成通过回路（12）泵送工作流体（WF）的泵（22），其中，所述至少一个蒸发器（14）工作流体（WF）和热源（24），并且其中废热回收系统（10）还包括与冷凝器（18）连接布置的冷却回路（26）。该方法包括以下步骤：预测（S101）与系统（10）相关联的内燃机（2）的关闭; 确定（S102）是否满足预定要求; 并且如果是的话，在内燃机停机之前减少（S103）废热回收系统（10）中的温度。本发明还涉及一种废热回收系统（10），包括这种系统（10）的车辆（1），计算机程序（P）和计算机程序产品。

8. 发明申请

WO2022265557A1 SYSTEM FOR BRAKING AN ELECTRIFIED VEHICLE 审中-公开
公开(公告)号：WO2022265557A1
公开(公告)日：2022-12-22
申请号：PCT/SE2022/050529
申请日：2022-06-02
申请人： SCANIA CV AB
发明人： SOMMANSSON, Joakim , HÖCKERDAL, Erik , GUSTAVSSON, Jens , LARSSON, Anders , LEUFVEN, Oskar , ROOS, Christer , JOHNSSON, Daniel
IPC分类号： B60L7/22 , B60K11/06 , B60L7/26 , B60W30/18 , B60W30/188 , B60K17/28 , B60L15/20
摘要： A system for braking a vehicle is provided. The system comprises a powertrain comprising an electric machine arranged to propel the vehicle and a transmission arranged to transfer power between the electric machine and the driving wheels of the vehicle. The system further comprises a resistor device arranged to dissipate electric energy generated by the electric machine during braking of the vehicle, and an airflow generating device arranged to generate an airflow over the resistor device. The airflow generating device is arranged to be mechanically driven by the powertrain so as to generate said airflow. By (mechanically) driving the airflow generating device by means of the powertrain, the airflow generating device does not need its own motor, thereby making the system less complex. Further, the driving of the airflow generating device by means of the powertrain will consume energy itself, contributing to braking the vehicle.

9. 发明申请

WO2021006787A1 CONTROL DEVICE AND METHOD FOR CONTROLLING A COMPRESSION RELEASE BRAKE ARRANGEMENT FOR AN ENGINE 审中-公开
公开(公告)号：WO2021006787A1
公开(公告)日：2021-01-14
申请号：PCT/SE2020/050597
申请日：2020-06-10
申请人： SCANIA CV AB
发明人： GÖRANSSON, Hans , ERSVIK, Erik , KJELLSTRÖM, Lars-Göran , EKMAN, Mats , HÖCKERDAL, Erik , SOMMANSSON, Joakim
IPC分类号： F01L13/06 , F01L9/02 , F02D13/04
摘要： A control device (100) and method for controlling a compression release brake arrangement (10) is provided. The compression release brake arrangement comprises an exhaust valve actuator assembly (12), a first actuator valve (16) and a second actuator valve (18). The method comprises controlling the first and second actuator valves to a first state in which one of the actuator valves is open and the other one is closed. The disclosure further relates to a computer program, a computer readable medium, as well as to a vehicle (1) comprising the control device.

10. 发明申请

WO2018048338A1 A METHOD FOR CONTROLLING THE TEMPERATURE OF A COOLING FLUID IN A COOLING SYSTEM AND A COOLING SYSTEM 审中-公开
标题翻译：一种用于控制冷却系统中的冷却流体的温度和冷却系统的方法
公开(公告)号：WO2018048338A1
公开(公告)日：2018-03-15
申请号：PCT/SE2017/050837
申请日：2017-08-22
申请人： SCANIA CV AB
发明人： JOHANSSON, Björn , HÖCKERDAL, Erik
IPC分类号： F01P7/14 , F01K9/00 , F01K23/06 , F01N5/02 , F01P3/12 , F01P3/20 , F02G5/04
摘要： The present invention relates to a method for controlling the temperature of a cooling fluid in a cooling system (6) arranged in fluid connection with an internal combustion engine (2) of a vehicle, the cooling system comprising a cooling circuit (50) connected to a condenser (26) of a waste heat recovery system (4), a cooling pump (52) arranged to circulate a cooling fluid through the cooling circuit (50) and a radiator (54) arranged for cooling the cooling fluid, a bypass circuit (56), a first valve unit (58) and a second valve unit (60), wherein the first valve unit (58) is arranged to control the flow of cooling fluid through the radiator (54) and the bypass circuit (56) respectively, and the second valve unit (60) is arranged to control the flow of cooling fluid passing through the condenser (26). A condenser-in temperature of the cooling fluid is determined by means of a first temperature sensor (55) and an engine-in temperature of the cooling fluid is determined by means of a second temperature sensor (57). The flow of the cooling fluid is controlled by means of the first valve unit (58) and/or the second valve unit (60) based on the determined condenser-in and engine-in fluid temperatures.
摘要翻译：本发明涉及一种用于控制布置成与车辆的内燃机（2）流体连接的冷却系统（6）中的冷却流体的温度的方法，所述冷却系统包括连接到废热回收系统（4）的冷凝器（26）的冷却回路（50），布置成循环冷却流体通过冷却回路（50）的冷却泵（52）和布置成用于冷却冷却流体，旁通回路56，第一阀单元58和第二阀单元60，其中第一阀单元58布置成控制冷却流体流过散热器54 ）和旁通回路（56），并且第二阀单元（60）布置成控制流过冷凝器（26）的冷却流体的流动。借助第一温度传感器（55）确定冷却流体的冷凝器入口温度，并且借助第二温度传感器（57）确定冷却流体的发动机入口温度。基于确定的冷凝器进入和发动机进入流体温度，借助第一阀单元（58）和/或第二阀单元（60）来控制冷却流体的流动。

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